#linuxcnc | Logs for 2015-01-02

[00:06:55] <zeeshan> today is a milestone for the mill
[00:07:26] <Jymmm> replaced by a food processor?
[00:07:27] <zeeshan> https://www.flickr.com/photos/128539016@N05/15985743197/
[00:07:41] <zeeshan> https://www.flickr.com/photos/128539016@N05/15985743807/
[00:09:58] <furrywolf> zeeshan: I avoided doing useful things! http://fw.bushytails.net/css/gears/imgmenu.php enjoy. :P
[00:10:03] <furrywolf> be sure to hit reload several times
[00:10:49] <zeeshan> LOL
[00:11:05] <zeeshan> howd you do that
[00:11:06] <zeeshan> so quick
[00:11:48] <zeeshan> ah
[00:11:52] <zeeshan> yuoure using a translucent outline
[00:11:52] <zeeshan> http://fw.bushytails.net/css/gears/gearoutline01.png
[00:12:18] <zeeshan> can i use your code?
[00:12:30] <zeeshan> ill need to modify it for my color scheme
[00:12:58] <furrywolf> I'm far more proud of my randomly generating a different menu every time you load the page, complete with carefully shaping it, and making sure only gears turning opposite directions are allowed to edge up to each other, to make sure the geartrain isn't locked. :P
[00:13:29] <zeeshan> furrywolf: wow
[00:13:31] <zeeshan> i just noticed that
[00:13:34] <zeeshan> That is cool!
[00:13:50] <furrywolf> also, quick? that took me way way longer than it should have. I'm rusty.
[00:14:14] <zeeshan> i honestly havent touched html since i was 14
[00:14:18] <zeeshan> i used to do web design back then
[00:14:19] <zeeshan> basic stuff.
[00:14:22] <zeeshan> totally forgot it all
[00:14:55] <furrywolf> I need to add code to set the rotation of the gears correctly... right now they don't mesh properly.
[00:15:48] <furrywolf> the math needed to make the teeth line up is more than I'm in the mood for. getting past bedtime.
[00:18:51] <Jymmm> /msg zeeshan Camera ID - 72157631630773540
[00:20:03] <zeeshan> ??
[00:30:47] <The_Ball> Is this any good for a vacuum table? http://www.ebay.com.au/itm/liquid-ring-vacuum-pump-150l-mn-max-vacuum-96KPa-high-vapour-tolerance-/151284959209?pt=AU_Pumps&hash=item23394947e9
[00:41:42] <Connor> zeeshan: Do you have a 4th and 5th axis already ?
[00:41:56] <zeeshan> no
[00:42:12] <Connor> So, your just gonna hope those drivers you have will work? :)
[00:42:18] <zeeshan> already tested em
[00:42:35] <Connor> I mean, work for the 4th and 5th axis servo's.. which you don't have...
[00:42:47] <zeeshan> theyre oversized
[00:42:53] <zeeshan> for 1.5kW servos
[00:42:58] <zeeshan> i think they should be ok
[00:43:26] <Connor> What are those 3 funky rings on the mill head? behind the enclosure now...
[00:44:14] <zeeshan> they are the speed selectors
[00:44:22] <zeeshan> there are motors that go on there
[00:44:34] <Connor> okay.
[00:44:36] <zeeshan> to choose speeds :D
[00:44:46] <Connor> To change gears..
[00:45:06] <Connor> You going to bother... or just set it to a medium gear and use the VFD ?
[00:45:20] <zeeshan> i was initially going to make them work
[00:45:26] <zeeshan> but after i burned that speed selector board..
[00:45:34] <zeeshan> i think im just going to put it on a medium gear, vfd it up
[00:45:44] <zeeshan> and if i need the back gear, manually change it
[00:45:53] <zeeshan> its a vector vfd
[00:46:07] <Connor> Yea. So, it didn't use a VFD ?
[00:46:13] <zeeshan> so it should be able to produce high torque at low rpm
[00:46:16] <zeeshan> 1hz
[00:46:30] <zeeshan> i notice the non vector ones are useless below 10-12hz
[00:46:44] <zeeshan> you can stop the spindle with your hand
[00:46:51] <zeeshan> Connor: yes, no vfd
[00:47:30] <Connor> Do you know what you burned up on the gear selector board ?
[00:47:49] <zeeshan> definitely some logic gate ic
[00:48:03] <zeeshan> cause it operates to the point where its instant burn if i touch it
[00:48:03] <zeeshan> haha
[00:48:05] <Connor> it through hole or smd ?
[00:48:08] <zeeshan> thru hole
[00:48:14] <zeeshan> whole board is thru hole
[00:48:24] <Connor> You might see about just replacing the IC's on it.
[00:48:28] <Connor> shouldn't be that hard.
[00:49:42] <zeeshan> dude im just excited
[00:49:49] <zeeshan> cause i can start hooking up all the devices
[00:49:55] <Connor> Of course now you might not have enough clearance to mount the motors with the enclosure mounted..
[00:50:00] <zeeshan> no
[00:50:03] <zeeshan> i made sure there was enough
[00:50:04] <Connor> just don't go and blow anything up.
[00:50:18] <zeeshan> thats why im using those big ass spacers
[00:50:20] <zeeshan> the 6"
[00:51:12] <Connor> be careful when you screw the front panel on.. I see the wires running right under a screw hole on the upper enclosure.. left hand side.. middle
[00:51:22] <zeeshan> im only going to use
[00:51:24] <zeeshan> the 4 outer screws
[00:51:39] <zeeshan> and the middle two
[00:51:43] <Connor> That's the only one I see that looks like it might cause a issue
[00:52:00] <Connor> are they different brands? They look a little different..
[00:52:06] <zeeshan> the boxes?
[00:52:06] <zeeshan> yes
[00:52:10] <zeeshan> one is s crew panel
[00:52:11] <zeeshan> the other is a door
[00:52:17] <zeeshan> why i did that, is because thats all i had
[00:52:18] <zeeshan> :(
[00:53:02] <Connor> fans pulling are through enclosure or into it?
[00:53:08] <Connor> pulling AIR
[00:53:12] <zeeshan> pullers
[00:53:31] <Connor> no fans for the bottom eh?
[00:53:39] <zeeshan> will be on the door
[00:53:44] <Connor> ok
[00:53:52] <zeeshan> i couldnt find any good location for them
[00:53:54] <zeeshan> but the door
[00:53:54] <zeeshan> lol
[00:54:03] <zeeshan> itll just be a single fan
[00:54:08] <zeeshan> there shouldnt be much heat gen in there.
[00:54:15] <zeeshan> one 110v 25 watt fan
[00:54:26] <Connor> yea.. well.. the PC and PC PSU..
[00:55:21] <Connor> I see you got one of those 1" cable glands.
[00:55:33] <zeeshan> yessir
[00:55:37] <zeeshan> i have 2
[00:55:39] <zeeshan> one will be for the PC stuff
[00:55:46] <zeeshan> one is for things like encoder wires
[00:55:56] <Connor> only see one.
[00:56:00] <zeeshan> oh only one is mounted
[00:56:02] <zeeshan> the other is in my room
[00:56:10] <zeeshan> hey, im thinking..
[00:56:17] <zeeshan> for th is machine, i dont want the computer as part of the machine
[00:56:26] <zeeshan> by that i mean, i dont want the monitor mounted on the machine
[00:56:33] <Connor> ok
[00:56:40] <zeeshan> think a dvi extension cable, some usb extension cable
[00:56:49] <zeeshan> and a roller tool box with a plywood top
[00:56:50] <zeeshan> would be nice?
[00:57:15] <Connor> Probably wouldn't be to bad.
[00:57:41] <Connor> Mine has a 19" touch screen that is going to end up being a pendant style.
[00:57:47] <Connor> if and when I can get back to working on it.
[00:57:56] <Connor> Gotta pick up the RV this Saturday..
[00:58:01] <Connor> and wire it up to the house.
[00:58:39] <zeeshan> whatd you decide on powering it
[00:59:09] <zeeshan> fuck
[00:59:15] <Connor> gotta tap into my 220v circuit for the hot water heater in my shop and run a 6 gauge rubberized cable to it.
[00:59:17] <zeeshan> i just realized, how the hell will i power the monitor
[00:59:19] <zeeshan> :/
[00:59:29] <zeeshan> ill need a long ass cable that goes to the enclosure for pwoer
[00:59:30] <zeeshan> :/
[00:59:40] <zeeshan> Connor: ah.
[00:59:41] <Connor> Umm.. Just plug the monitor up "locally"
[01:00:23] <Connor> you can bundle the power cable with the video and usb too if needed.. so, just a extension cord..
[01:00:54] <zeeshan> i think i need to find some loom for it
[01:01:01] <zeeshan> i hate just relying on a pvc jacket
[01:01:13] <Connor> You probably want 4 USB cables.. 1 for Keyboard, 1 for mouse, 1 for USB stick and 1 for a Pendant if you get one of those like I have.
[01:01:23] <zeeshan> hmm
[01:01:26] <zeeshan> not a bad idea on the usb stick.
[01:02:41] <Connor> I have mine setup with a USB network adapter so I can pull stuff from my other computers..
[01:02:41] <zeeshan> interesting
[01:02:45] <zeeshan> max length is 16 feet for usb.
[01:02:49] <Connor> but, would rather have it wired with ethernet.
[01:02:49] <zeeshan> usb cables
[01:03:03] <zeeshan> i got a wireless card on this one
[01:03:24] <zeeshan> connor i think im just gonna do this:
[01:03:27] <zeeshan> 1 usb cable.
[01:03:32] <zeeshan> then a 3 port splitter at the end,.
[01:03:37] <zeeshan> it'll be cleaner
[01:03:50] <Connor> Yes, but less bandwidth.
[01:04:01] <Connor> and I would recommend dedicated one for the MPG
[01:04:02] <zeeshan> its just a kyboard and mouse :)
[01:04:16] <zeeshan> i might end up going with the wireless pendant
[01:04:17] <Connor> yes, but the MPG and USB Stick aren't
[01:04:27] <Connor> http://www.monoprice.com/Product?c_id=103&cp_id=10303&cs_id=1030312&p_id=6149&seq=1&format=2
[01:04:30] <zeeshan> but in reality, ill only be transferring small files
[01:04:58] <Connor> Active USB extension.. 32 Ft. :)
[01:05:02] <zeeshan> hehe
[01:05:24] <zeeshan> im gonna start hooking up all the device wiring tomorrow
[01:05:28] <Connor> Not exactly sure WHY would want the PC that far away from the machine...
[01:05:47] <zeeshan> i dunno, me standing and using that lathe comp
[01:05:51] <zeeshan> is really really annoying
[01:06:00] <zeeshan> im so used to sitting down and typing
[01:06:09] <Connor> I sit down at my mill.
[01:06:19] <Connor> of course.. the PC is right at the mill..
[01:07:02] <zeeshan> https://www.flickr.com/photos/128539016@N05/15497049023/in/photostream/
[01:07:04] <zeeshan> do you see that arm
[01:07:08] <zeeshan> with some ripped off wood?
[01:07:14] <zeeshan> and an aluminum spacer
[01:07:22] <zeeshan> i can mount my monitor there.
[01:07:23] <Connor> Yes
[01:07:27] <zeeshan> but i dont know where i will mount the keyboard and mouse
[01:07:37] <zeeshan> unless i should just get a touch screen..
[01:07:50] * zeeshan likes keyboard too much
[01:07:52] <Connor> could you not mount it below?
[01:08:00] <Connor> or is that right over the table ?
[01:08:07] <zeeshan> it can come past the table
[01:08:11] <zeeshan> but its very easy to move
[01:08:13] <zeeshan> the arm that is
[01:09:13] <zeeshan> mount the keyboard to the wall
[01:09:14] <zeeshan> :-)
[01:09:19] <Connor> looking for picture online...
[01:09:39] <Connor> with that arm.
[01:09:42] <Connor> what was the arm for ?
[01:10:15] <zeeshan> absolutely zero idea
[01:10:16] <zeeshan> haha
[01:10:29] <zeeshan> ive neever seen it used.
[01:10:33] <zeeshan> on any of the pics ive seen
[01:10:50] <zeeshan> http://www.resale.de/images/7906987_a_wf21.3.jpg
[01:10:53] <Connor> http://www.mullermachines.ch/MachineImages/Large/17162_3.jpg
[01:10:59] <zeeshan> yep
[01:11:02] <zeeshan> it just sits there..
[01:11:18] <Connor> looks like it might be used for something with the spindle maybe ?
[01:11:30] <zeeshan> no
[01:11:37] <Connor> or maybe a collet / tool holder rack ?
[01:11:40] <zeeshan> yea
[01:11:42] <zeeshan> that might be it!
[01:11:46] <zeeshan> a collet rack
[01:12:18] <Connor> It's not in a good position to use a a monitor or keyboard holder..
[01:12:27] <Connor> needs to be in front of the table..
[01:12:37] <zeeshan> it can extend out
[01:12:39] <zeeshan> lemme take a pic
[01:13:04] <Connor> yea.. but.. it's going to end up going right over the table I would think.
[01:13:05] <XXCoder1> you guys ever melted alum and made stuff?
[01:13:21] <Connor> Me? No. I would like to try casting some Alumn at some point.
[01:13:29] <XXCoder1> me too
[01:13:31] <Connor> http://www.mullermachines.ch/MachineImages/Large/17162_1.jpg
[01:13:37] <Connor> control is ideal location there..
[01:14:31] <zeeshan> https://www.flickr.com/photos/128539016@N05/15549651754/
[01:14:33] <zeeshan> i guess it doesnt.
[01:14:42] <zeeshan> its 3/4" of the way of the table
[01:14:47] <zeeshan> remember that table doesnt move in the y direction
[01:14:48] <zeeshan> the head does
[01:14:59] <Connor> right.. but it does in the X
[01:15:05] <Connor> https://www.youtube.com/watch?v=Hs5lYs71O-A
[01:16:01] <zeeshan> connor i was thinking of buying a tool chest to replace my two other toolboxes
[01:16:09] <zeeshan> but this one will be a nice one with a table top
[01:16:16] <zeeshan> might work better.
[01:16:39] <Connor> Dude, where do you get the money to do all of this with? :)
[01:16:43] <Connor> Oh wait.. your single..
[01:16:48] <zeeshan> im not single
[01:16:51] <zeeshan> well not married :P
[01:16:53] <zeeshan> but we live together
[01:17:00] <zeeshan> buy and sell stuff
[01:17:03] <zeeshan> school money
[01:17:11] <zeeshan> not much expense
[01:17:22] <zeeshan> and i dont buy clothes!
[01:17:32] <Connor> okay.. I'm headed back to the living room for a while then to bed.
[01:17:35] <Connor> have fun!
[01:17:39] <zeeshan> cya!
[01:34:52] <furrywolf> zeeshan: http://fw.bushytails.net/css/gears/imgmenu2.php now I'm going to bed.
[01:37:26] <furrywolf> now all the teeth line up, and it only tolerates a 2 degree error in making loops in the gears. :P
[01:42:13] <XXCoder1> furrywolf: I won your invasion game :P
[01:43:50] <furrywolf> it's stupidly easy. I'd hope so. :P
[01:44:07] <XXCoder1> yeah I just look at center and move mouse to any movement
[01:45:13] <XXCoder1> you run a home server or what?
[01:46:50] <furrywolf> linode
[01:47:40] <XXCoder1> interesting. well going to sleep night :)
[01:49:38] <furrywolf> I'm almost done making an even more annoying version.
[01:50:12] <XXCoder1> lol
[01:53:12] <XXCoder1> lol at that crackpot free electric thingy
[01:53:41] <XXCoder1> guys using led light in bulb. it needs only very small amount of power - probably supplied inside bulb with switch on bottom
[01:53:49] <XXCoder1> anyway really going now
[02:21:17] <Jymmm> XXCoder1: LEd bulbs produce LOTS of heat
[02:22:26] <Jymmm> XXCoder1: One of my 15m LED strips got up to 190F
[02:22:47] <Jymmm> XXCoder1: And was NOT overdriven.
[02:38:58] <evilren> theyre like speakers, theyre not very efficient
[02:39:16] <evilren> maybe 1% or something, everthing else is dissiprated as heat
[02:40:20] <evilren> so yeah, you got 1W burning up over maybe 1/4cm^3 of surface area, shit gonna get crazy hot
[02:44:29] <evilren> ha, cree xre doesnt even spec a junction to ambient
[02:45:41] <evilren> 8C/W, so everything else aside, 15A with a perfect heatsink haha
[02:46:09] <evilren> water cool you cree to see when the bonding wires burn up
[02:50:43] <evilren> yeah so 30C per XRE
[02:50:49] <furrywolf> zeeshan: http://fw.bushytails.net/css/gears/imgmenu3.php just in case you doubted the teeth meshed. :P
[02:50:51] <furrywolf> bbl, bedtime
[02:51:09] <evilren> so two of them, with god heatsinks, would reach 190F at the junction
[03:14:11] <Deejay> moin
[04:36:20] <Computer_Barf> can I use linux cnc with a KFlop board?
[04:42:14] <CaptHindsight> http://3dprintingindustry.com/wp-content/uploads/2015/01/Nemomaker-3D-Printer-Laser-Engraver-hardware.jpg featuring "Japanese smooth rods" and "Z-precise ballscrew"
[04:43:27] <archivist> Computer_Barf, no, linuxcnc has its own motion controller
[04:44:42] <archivist> CaptHindsight, smooth.....but not necessarily straight :)
[04:44:56] <CaptHindsight> heh
[04:44:59] <Computer_Barf> I was interested in the kflop because of the feedback loops , particularly for liniar glass scales
[04:45:08] <CaptHindsight> http://dynomotion.com/KFLOP.html
[04:45:52] <archivist> Computer_Barf, all can be controlled by linuxcnc, it can read glass scales
[04:47:24] <archivist> mach needs those because of its poor realtime on windows
[04:49:16] <CaptHindsight> Computer_Barf: the Kflop also needs a PC for the user interface
[04:50:02] <CaptHindsight> Computer_Barf: what types of motors are you controlling and how many?
[04:51:21] <Computer_Barf> i was also consideirng a mesa 7I76E
[04:51:29] <Computer_Barf> just nema steppers
[04:51:37] <Computer_Barf> its for a g0704
[04:53:02] <CaptHindsight> a LPT port can drive steppers as well
[04:59:46] <archivist> I cannot see if kflop can do any gearing
[05:00:17] <archivist> or special kinematics
[05:06:48] <The_Ball> I think my connection timed out so not sure my question made it to the channel
[05:06:51] <The_Ball> I want to reinstall to get off of 8.04, 12.04 looks good, but perhaps now that 14.04 is available it would be a better choice?
[05:06:55] <The_Ball> Also it's only the 32 bit version that is considered stable, right?
[07:27:11] <The_Ball_Shed> Are all metric threads 60 degrees?
[07:28:00] <The_Ball_Shed> Trying to figure out what sort of carbide insert is necessary for making external metric threads
[07:33:20] <Tom_itx> http://www.engineeringtoolbox.com/metric-threads-d_777.html
[07:33:22] <Tom_itx> The thread angle is 60o. The thread depth is 0.614 x pitch.
[07:41:14] <archivist> depends if you want a form cutting insert or general purpose
[07:41:43] <The_Ball_Shed> I know next to nothing about cutting threads, so maybe general purpose
[07:42:15] <The_Ball_Shed> I can't imagine I'll cut anything but metric threads thought in the M3-M6 range
[07:44:47] <archivist> one sharp enough for m3 will easily do m6 as long as it is not a form tool that cuts the tip radius too, most cheap inserts dont do form
[07:46:08] <The_Ball_Shed> Cool, so I'm after 60 degree inserts, not 55, I see they sell a lot of 55 degree inserts as well
[08:00:54] <jthornton> I use the triangle threading inserts that fit a range of thread sizes
[08:01:58] <jthornton> similar to this one http://mallardtool.com/catalog2/images/16LTIN.jpg
[08:08:47] * jthornton has finally figured out how to get the length of the sides of the triangle formed by 3 points then get the angles of each pair of sides in python
[08:20:35] <jthornton> next the arc length
[08:35:31] <Jymmm> "Agilent Technologies Electronic Measurement Business is now Keysight Technologies"
[08:35:47] <Deejay> oh
[08:37:16] <malcom2073> CaptHindsight: Wonder how precise that ballscrew is in the other two directions :P
[08:40:04] <The_Ball_Shed> jthornton, thanks for that insight, how many degrees are those inserts?
[08:42:07] <jthornton> I just pulled up a photo of something similar to what I use
[09:34:20] <CaptHindsight> malcom2073: I think the Japanese smooth rods keep it in place :p
[09:34:26] <malcom2073> Heh
[09:35:15] <CaptHindsight> once again, just ask a native English speaker to proof read, but they simple refuse to
[09:36:21] <CaptHindsight> simple/simply
[10:08:56] <malcom2073> Oh nice, found a topic on cnczone where a guy is doing pretty much exactly what I'm doing. Nice to watch someone else figure things out so I can benefit from it :-D
[10:52:07] <SpeedEvil> :)
[10:53:15] <malcom2073> More specifically, I can learn from his mistakes without spending the money to make the mistakes heh
[10:54:22] <malcom2073> http://www.cnczone.com/forums/vertical-mill-lathe-project-log/179180-cnc-tormach-machinist-software.html
[10:54:32] <malcom2073> That's pretty much exactly what I'm doing, except 2x4 not 3x4
[10:55:28] <malcom2073> Except with larger rails heh
[11:06:55] <CaptHindsight> malcom2073: he looks like he like to spend time fabricating vs just building it right and moving on http://www.cnczone.com/forums/vertical-mill-lathe-project-log/179180-cnc-tormach-machinist-software-6.html
[11:11:53] <malcom2073> uh, what?
[11:13:28] <CaptHindsight> if you watch ebay for bargains you can find most of the parts for a machine that size
[11:13:53] <malcom2073> What do you mean parts, the frame?
[11:14:03] <CaptHindsight> especially the frame
[11:14:10] <CaptHindsight> already seasoned
[11:14:28] <malcom2073> I'd rather not inherit someone elses problem project heh
[11:14:37] <malcom2073> I'm also not planning on welding, but bolting/pinning
[11:14:46] <malcom2073> to avoid the whole needing to get it de-stressed
[11:17:40] <CaptHindsight> epoxy granite <10% resin, >90 aggregate
[11:17:48] <CaptHindsight> http://www.cnccookbook.com/CCMillEpoxyFill.htm
[11:19:23] <CaptHindsight> and probably the greatest thread ever on epoxy granite http://www.cnc-arena.com/en/forum/epoxy-granite-machine-bases-polymer-concrete-frame--30155.html
[11:19:41] <CaptHindsight> certainly the longest
[11:20:03] <mozmck1> $5-6K for that mill on cnczone. You can buy a mill in quite good shape for less than that - ready to go.
[11:22:15] <malcom2073> mozmck1: I'm going to be about $2k in this in materials when I'm finished. Half stuff I have laying around, half super deals I've gotten on things like linear rails, sure I could buy a cheap chinese thing for that price on ebay, but they're pretty flimsy
[11:23:42] <mozmck1> I'm talking about a real milling machine used..
[11:24:04] <malcom2073> Oh well... yeah. That's on my list of things to buy eventually, but I figure if I'm gonna spend a grand or two on a router, I might as well make it sturdy enough to do metal
[11:24:22] <malcom2073> since the price difference between 15mm rails and alumiunm frame and 35mm rails and steel frame is negligable
[11:24:26] <mozmck1> I see.
[11:25:35] <humble_sea_bass> 90-10 by volume, right
[11:25:57] <mozmck1> To make it rigid enough for steel like that thread will be an interesting chore. It also needs to be able to move very slow with lots of torque, while routing wood needs much faster speeds.
[11:29:00] <humble_sea_bass> there is also the concrete machine tools
[11:41:19] <CaptHindsight> humble_sea_bass: yes, by volume
[11:42:14] <CaptHindsight> epoxy, polyester, acrylic or urethane resins are ~1-1.1Kg/L
[11:42:42] <CaptHindsight> aggregates are much higher density
[11:50:32] <humble_sea_bass> I'm looking through the "open source" concrete lathe wiki
[11:50:50] <humble_sea_bass> those guys never really built this fucking thing
[11:54:10] <archivist> but they have a 3d model !
[11:54:32] <archivist> a photo realistic scam
[11:54:32] <humble_sea_bass> they have an excellent 3d studio max rendering too
[11:55:39] <SpeedEvil> I've wondered about vacuum cement mixing - for _really_ high aggregate fraction
[11:55:58] <humble_sea_bass> the insult lies in that Make: magazine wrote entire articles of this shit
[11:56:13] <SpeedEvil> normally, you need to be able to mix concrete - the particles have to be able to slide past eachother.
[11:56:32] <SpeedEvil> This sets a hard upper limit on the amount of solids you can have in the mix
[11:57:25] <SpeedEvil> If you have instead a low-pressure steam environment - you can mix without that being an issue
[11:57:51] <humble_sea_bass> I don't think vaccuum is what you want
[11:58:12] <humble_sea_bass> concrete needs oxygen
[11:58:17] <SpeedEvil> No, it doesn't.
[11:58:37] <humble_sea_bass> concrete? as in portland
[11:58:40] <SpeedEvil> It sets entirely through internal reaction- it does not need access to the air to dry
[11:59:04] <SpeedEvil> It sets perfectly fine - and as rapidly - if it's covered in plastic
[12:00:45] <humble_sea_bass> covered in plastic is not the same as a vaccuum
[12:01:08] <SpeedEvil> I do not mean to set it under low pressure. merely to mix it.
[12:01:14] <humble_sea_bass> I could be completely wrong, as the only concrete work I've done in my life is block work and foundations etc
[12:01:36] <SpeedEvil> I've actualy read long technical screeds on exactly how concrete sets chemically.
[12:01:55] <SpeedEvil> it's a really fun process - but doesn't involve anything moving into or out of the concrete
[12:02:06] <humble_sea_bass> yeah. exothermic reachtions etc etc
[12:03:15] <humble_sea_bass> you said vaccuum at the beginning, and that seems unnecessary for compaction. concrete vibration can handle that or just using shot-crete
[12:03:15] <humble_sea_bass> which is the most fun thing ever
[12:03:34] <SpeedEvil> I don't mean normal compaction.
[12:03:53] <SpeedEvil> If you take sand, and pack it down, there is a certain fraction of void space left.
[12:04:17] <XXCoder1> Jymmm: yes if its lots lumens type. that video it wasnt :)
[12:04:19] <humble_sea_bass> correct
[12:04:32] <SpeedEvil> You can't quite get to that with normal concrete - because the grains need to be able to move over each other while mixing - so does the aggregate
[12:04:49] <SpeedEvil> If you just try forcing it - you're going to get a lot of entrained air
[12:05:02] <humble_sea_bass> hence the vibrator
[12:05:11] <SpeedEvil> But if you do it under vacuum, you could in principle get a very low void fraction indeed.
[12:05:38] <humble_sea_bass> you'd need a bananas vacuum to pull entrained bubbles from a high aggregate slurry
[12:05:41] <SpeedEvil> (where 'vacuum' is really steam at 1PSI
[12:05:50] <SpeedEvil> yes - I mean entirely avoid the bubbles.
[12:05:57] <SpeedEvil> You start mixing under vacuum
[12:06:08] <SpeedEvil> The atmosphere is at all times steam.
[12:06:17] <SpeedEvil> With no air.
[12:06:32] <SpeedEvil> (until it's mixed, anyway
[12:06:39] <CaptHindsight> aka hot water
[12:07:20] <SpeedEvil> Well - you could in principle do the same at 120C
[12:07:27] <SpeedEvil> but concrete sets rather too rapidly then
[12:09:08] <CaptHindsight> http://www.cnc-arena.com/en/forum/epoxy-granite-machine-bases-polymer-concrete-frame--30155-405.html this thread already covers this approach
[12:09:22] <humble_sea_bass> well, for all this trouble, what is the aimed void fraction
[12:10:14] <SpeedEvil> I dunno - I'e got all sorts of fun ideas for concrete+3d printy/pulltrusion stuff
[12:10:40] <humble_sea_bass> http://www.shotcrete.org/media/Archive/2003Sum_jolinbeaupre.pdf
[12:11:07] <humble_sea_bass> i don't think it gets better than shotcrete
[12:11:21] <CaptHindsight> you can control the cure time of epoxy by controlling the temperature
[12:12:04] <CaptHindsight> it's not as dramatic with concrete
[12:12:14] <SpeedEvil> CaptHindsight: It is, actually
[12:12:25] <SpeedEvil> i've done casting in the oven at ~80C
[12:12:29] <SpeedEvil> Goes quite fast
[12:12:34] <humble_sea_bass> Cap, but I think SpeedEvil has applications in mind where epoxy may not be optimal
[12:12:45] <SpeedEvil> humble_sea_bass: Or simply not as cheap
[12:12:57] <SpeedEvil> A 25kg back of epoxy is not $7
[12:14:02] <SpeedEvil> part of the interest in controlled void fraction is if you can use granite, and granite sand, and granite hardcore, and can get the void fraction in concrete really low - you basically have - pretty much - a slab of granite
[12:15:15] <humble_sea_bass> http://www.cement.org/images/default-source/contech/construction/curing_fig2.jpg?sfvrsn=6
[12:15:42] <CaptHindsight> whats the expected difference in compressive strength and flex mod?
[12:16:12] <roycroft> and those applications include boots and murky rivers, humble_sea_bass?
[12:17:04] <humble_sea_bass> roycroft: what
[12:17:11] <SpeedEvil> CaptHindsight: well - yes - that's a major difference. Modulus should be fairly similar - up until it yields
[12:17:44] <roycroft> applications where epoxy is not optimal but concrete is
[12:18:00] <humble_sea_bass> concrete is cheap as hell like CaptHindsight said
[12:18:03] <humble_sea_bass> or SpeedEvil
[12:18:45] <humble_sea_bass> and UV stableization is not even a throught I suppose
[12:18:58] <CaptHindsight> the difference between 3% air and 1% air entrapment, and then there's the distribution in bubble sizes and other mental masturbation to consider
[12:19:32] <SpeedEvil> CaptHindsight: I suspect you can reduce the cement fraction to well under half of the normal value - without actual void
[12:21:07] <CaptHindsight> you're not going to see much of a performance difference
[12:21:35] <CaptHindsight> vibration works well enough
[12:21:41] <SpeedEvil> Possibly.
[12:21:57] <CaptHindsight> report back when you're done :)
[12:22:13] <humble_sea_bass> https://www.youtube.com/watch?v=YanHEgfepC0
[12:22:17] <tjtr33> concrete lathe real pix http://makezine.com/projects/the-multimachine-150-12-swing-metal-lathemilldrill/ videos http://concretelathe.wikispaces.com/
[12:22:39] <humble_sea_bass> that's a rendering dog
[12:23:10] <XXCoder1> tjtr33: yeah saw before. guide is ugggly :(
[12:23:12] <humble_sea_bass> oh comedy i get it
[12:23:14] <XXCoder1> needs expert
[12:24:44] <CaptHindsight> the bearings are metal!
[12:24:54] <tjtr33> jeez it is a rendering, the marble worktable sez it, but the crap leaning in the corner made it look real
[12:24:59] <tjtr33> my bad
[12:25:57] <XXCoder1> Dunno if anyone evrr built one
[12:26:01] <zeeshan> whats the point of a cocnrete lathe
[12:26:07] <XXCoder1> zeeshan: cheap
[12:26:08] <zeeshan> when you can get a monarch for 300$!!!
[12:26:20] <zeeshan> im still pouting over that lathe
[12:26:21] <zeeshan> :(
[12:26:32] <XXCoder1> much larger one is just little bit more money
[12:26:56] <CaptHindsight> concrete and epoxy granite will behave differently
[12:27:46] <XXCoder1> zeeshan: also, history. usa suddenly needs LOT more lathes. so invented cheap way to make lathes
[12:27:54] <XXCoder1> because of ww2
[12:28:04] <CaptHindsight> the resin (or binder) adds some flex to the structure and that adds to the dampening
[12:28:14] <humble_sea_bass> big lathes in particular
[12:28:19] <XXCoder1> indeed
[12:28:54] <CaptHindsight> concrete doesn't flex much
[12:29:09] <XXCoder1> it may indeed have minor hand on helping us help finish ww2
[12:29:32] <humble_sea_bass> this is rad a fuck
[12:29:34] <humble_sea_bass> https://www.youtube.com/watch?v=PB8TWMKHHMQ
[12:29:50] <XXCoder1> rod a fuck? heh
[12:29:53] <humble_sea_bass> this kind of vault used to be a common detail in nyc
[12:29:55] <humble_sea_bass> RAD
[12:29:58] <XXCoder1> yeah saw before. still amazed
[12:30:32] <SpeedEvil> CaptHindsight: sure- that is a real issue.
[12:30:39] <CaptHindsight> brick lathe
[12:30:44] <SpeedEvil> CaptHindsight: Some of that can be mitigated simply by adding mass.
[12:31:06] <humble_sea_bass> https://www.youtube.com/watch?v=hE0MSwqoaVU
[12:31:14] <humble_sea_bass> the caption on this one is great
[12:31:33] <humble_sea_bass> gives you the mixture to make that sticky ass crete
[12:31:45] <roycroft> better than a straw lathe, capthindsight
[12:32:09] <CaptHindsight> straw with cement binder
[12:32:16] <roycroft> or an epoxy binder?
[12:32:40] <XXCoder1> piggies built straw lathe... then wood... then finally bricks :P
[12:33:35] <CaptHindsight> 3 pigs approved
[12:33:54] <XXCoder1> hmm expoxy bricks :P
[12:34:20] <CaptHindsight> short strand carbon fiber is down to ~$14/lb
[12:35:01] <XXCoder1> I do want to try make expoxy granite for fun
[12:35:03] <CaptHindsight> epoxy in 480lb drums is <$2/lb
[12:35:08] <XXCoder1> mke some statue or somethibg
[12:35:33] <roycroft> a bronze lathe would be nice
[12:36:18] <zeeshan> http://www.iscar.com/eCatalog/item.aspx?cat=2300524&fnum=373&mapp=TG&app=0&GFSTYP=M
[12:36:19] <zeeshan> hi guys
[12:36:30] <zeeshan> i have this parting blade
[12:36:36] <zeeshan> i think someone machined the top and bottom of it flat.
[12:36:42] <zeeshan> and down to 25 mm...
[12:36:47] <zeeshan> what kind of holder does it go in?
[12:37:21] <CaptHindsight> http://www.iscar.com/ecatalog/Ecat/illust_m/373.gif
[12:37:31] <CaptHindsight> they ruined this?
[12:37:35] <zeeshan> looks like it
[12:38:32] <CaptHindsight> drill 2 holes and bolt it? :0
[12:38:50] <zeeshan> better yet, whats a good indexable parting blade that can fit in a BXA tool holder
[12:39:37] <XXCoder1> interesting http://instrumentepoxyflooring.blogspot.com/2013/12/stone-epoxy-flooring-diy.html
[12:39:45] <XXCoder1> I saw such floor before at some spa
[12:40:28] <XXCoder1> Hmm it dont show on site but ehres image http://www.wolverinecoatings.com/Pictures/EpoxyStone/EpoxyStone10.JPG
[12:40:45] <XXCoder1> expoxy rock floor. pretty darn confortable
[12:41:06] <CaptHindsight> Fedex arrived to day without screw ups
[12:42:18] <CaptHindsight> heh, epoxy flooring is quite a racket
[12:42:38] <CaptHindsight> lots of margin
[12:42:46] <XXCoder1> profitable eh
[12:43:11] <CaptHindsight> the kits at Home Depot are
[12:43:57] <CaptHindsight> I've only seen some quotes on factory floors, looks like 10-20% actual materials cost
[12:44:29] <CaptHindsight> there is labor, but it's a few guys with special spatulas
[12:44:48] <Tom_itx> hombres
[12:45:13] <CaptHindsight> self leveling unless the aggregate is large
[12:45:27] <_methods> oh you could make a cnc out of it.....lol
[12:45:28] <Tom_itx> i saw one done that ended up bubbling up
[12:45:38] <Tom_itx> they must have not gotten it clean
[12:45:53] <Tom_itx> maybe it was the acid wash..
[12:46:11] <XXCoder1> _methods: lol that would be interesting cnc. shiny
[12:46:24] <_methods> heheh
[12:46:45] <_methods> well back on the road
[12:46:52] <_methods> damn delivery guy called in sick
[12:47:03] <_methods> i been stuck droppin off and pickin up parts all day
[12:47:09] <CaptHindsight> http://www.homedepot.com/p/Rust-Oleum-EpoxyShield-2-gal-2-Part-Epoxy-Garage-Floor-Coating-Gray-High-Gloss-Kit-251870/100671422
[12:47:36] <XXCoder1> CaptHindsight: I wish there was way to get smaller batches of expoxy cheap
[12:47:47] <XXCoder1> $1 per lb in huge drums I can't use all
[12:48:16] <humble_sea_bass> US composites is where I get that junk
[12:48:24] <CaptHindsight> XXCoder1: unfortunately thats how chemicals are sold
[12:49:03] <CaptHindsight> anything under a 55gal drum (~220Kg) I get upcharged anywhere from $3-10/lb
[12:49:44] <CaptHindsight> for resins and components
[12:49:59] <humble_sea_bass> *business opportunity*
[12:50:03] <humble_sea_bass> sell him a gallon
[12:50:28] <XXCoder1> lol
[12:50:43] <CaptHindsight> a 5 gallon UN approved bucket is ~$18
[12:50:56] <XXCoder1> actually thats not bad
[12:51:02] <humble_sea_bass> not from us composites
[12:51:05] <CaptHindsight> shipping a 5 gallon pail is ~$50
[12:51:13] <humble_sea_bass> http://www.uscomposites.com/polyesters.html
[12:51:16] <tjtr33> the rustoleum epoxy worked fine in garage ( 2yrs now ) but Rustoleum 'latex epoxy' wont stand up to sneaker traffic
[12:51:17] <CaptHindsight> empty bucket
[12:52:16] <CaptHindsight> so you're at ~$70 for shipping and an empty bucket + $80 for the epoxy
[12:52:32] <XXCoder1> yeah probably better to buy local
[12:53:10] <CaptHindsight> truck freight for the whole drum is only $60
[12:54:09] <CaptHindsight> whats the minimum charge by UPS or Fedex for an empty 1lb box? ~$9
[12:55:51] <CaptHindsight> the US Composites 404 resin isn't bad for $160/5 gal
[12:56:16] <XXCoder1> shipped?
[12:56:25] <CaptHindsight> for $20 more I'd use the vinyl ester
[12:56:28] <tjtr33> mcmaster? lotsa epoxy choices
[12:56:50] <humble_sea_bass> mcmaster is like a loan shark
[12:57:01] <humble_sea_bass> everything costs 4-10 times more
[12:57:40] <CaptHindsight> I make similar types of resin but the small sales are a pain. $40/gal or resin and they want $500 in free tech support
[12:57:41] <tjtr33> yes, but convenient
[12:58:47] <CaptHindsight> XXCoder1: + shipping and they are east coast
[12:59:04] <XXCoder1> yeah not buying that aytime soon :) but thanks
[12:59:35] <CaptHindsight> XXCoder1: there must be some boating suppliers out west near that big ocean
[12:59:43] <XXCoder1> guess so
[13:00:55] <CaptHindsight> Home Depot polyester resin is ~$36/gal (8lbs)
[13:01:44] <CaptHindsight> not bad considering $8 in unsaturated polyester, the can and shipping
[13:02:15] <tjtr33> part number? ( i got a 8" black pipe to coat )
[13:02:31] <XXCoder1> yeah ironically still cheaper due to no shipping
[13:02:34] <CaptHindsight> Elmers polyester resin
[13:02:42] <XXCoder1> thanks you have given me much to consider
[13:02:51] <tjtr33> elmers? lucky we in borden area
[13:02:53] <tjtr33> thx
[13:03:23] <CaptHindsight> or 3M
[13:03:33] <CaptHindsight> 3M / Bondo brand
[13:04:09] <CaptHindsight> tjtr33: http://www.homedepot.com/p/3M-1-qt-All-Purpose-Fiberglass-Resin-20122/202077790 but in 1 Gal cans in the paint department
[13:04:49] <CaptHindsight> or at Loews http://www.lowes.com/pd_73902-63-E771_0__?productId=3143485
[13:04:58] <tjtr33> thx , found nada for elmers at HD
[13:05:00] <zeeshan> has anyone dealt with industrial wiring
[13:05:04] <zeeshan> of 100A 240VAC.
[13:05:22] <moorbo> zeeshan: a bit
[13:05:38] <CaptHindsight> tjtr33: it's at the store, not online since it's considered flammable
[13:05:46] <tjtr33> haha thats the 3M kit i got from ACE, i was discounting it as a good tool, thx
[13:05:50] <zeeshan> https://www.flickr.com/photos/128539016@N05/15985743197/
[13:05:56] <zeeshan> moorbo: i will have a disconnect 100A on the wall.
[13:06:08] <zeeshan> power entry is at the bottom of the enclosure.
[13:06:16] <zeeshan> what is the best way to join the two
[13:06:22] <zeeshan> flexible conduit + thhn ?
[13:06:23] <tjtr33> bye
[13:07:09] <Rickta59> is there any research / testing of people using a hypervisor running linux on one core and a rtos on another for doing cnc stuff?
[13:07:20] <Rickta59> i've search around but google didn't turn up anything
[13:07:34] <moorbo> zeeshan: ah, I couldn't give you a good answer on that.
[13:07:57] <moorbo> zeeshan: but if I remember correctly, for our plasma machine thats more or less what we did
[13:08:14] <CaptHindsight> Rickta59: rtai not quick enough for you?
[13:08:21] <zeeshan> whats the difference between flexible conduit + thhn
[13:08:24] <zeeshan> and armor cable?
[13:08:31] <zeeshan> they look like the same thing to me :D
[13:08:35] <Rickta59> just surveying what is out there
[13:08:46] <CaptHindsight> zeeshan: BX vs greenfield
[13:09:18] <CaptHindsight> Rickta59: preempt_rt and RTAI are fast enough and easy to use
[13:09:38] <moorbo> isn't armour cable usually used for mains
[13:10:24] <humble_sea_bass> your choices ought to be rigid conduit
[13:10:33] <zeeshan> humble_sea_bass: can't use rigid conduit
[13:10:36] <humble_sea_bass> or bx or armour cable
[13:10:38] <CaptHindsight> zeeshan: have to define the terms, it's gets confusing when you mix whats in the NEC and what the trade names are
[13:10:42] <zeeshan> it has to be flexible
[13:11:11] <humble_sea_bass> use BX/Armor
[13:11:22] <Rickta59> is any of that ported to smaller arm boards CaptHindsight ? like a BBB or RPI?
[13:11:42] <CaptHindsight> Rickta59: preempt_rt is
[13:11:53] <CaptHindsight> also older xenomai
[13:11:56] <pcw_home> Machinekit uses Xenomai on BBB
[13:12:38] <humble_sea_bass> you know, I should just get my ass off this chair and check the NEC for industrial panels and shit
[13:15:41] <zeeshan> i cant find any info on what size the flexible conduit needs to be
[13:15:44] <zeeshan> for 3awg 4 conductor.
[13:15:53] <zeeshan> 2 hots, 1 neutral 1 gnd
[13:16:07] <CaptHindsight> it's the same for flex as rigid
[13:16:18] <zeeshan> well if you look at metal vs pvc
[13:16:19] <zeeshan> its different
[13:16:32] <zeeshan> thats why the question :D
[13:16:35] <CaptHindsight> it has to do with temp
[13:16:59] <CaptHindsight> pvc has far lower W/mK
[13:17:32] <humble_sea_bass> 430.224 Size of Conductors. Conductors supplying motors shall have an ampacity not less than the current at which the motor overload protective device(s) is selected to trip.
[13:18:07] <zeeshan> http://sparkyjohn.com/pipefill/pipefill.pdf
[13:18:08] <zeeshan> found it
[13:18:11] <humble_sea_bass> sorry mang
[13:18:15] <zeeshan> 3 awg , 6 conduits
[13:18:24] <zeeshan> liquid tight flexible metal conduit lfmc 1-1/4"
[13:18:26] <humble_sea_bass> I copied the part about 600v equipment
[13:19:19] <humble_sea_bass> 430.122 Conductors — Minimum Size and Ampacity.
[13:19:19] <humble_sea_bass> (A) Branch/Feeder Circuit Conductors. Circuit conductors supplying power conversion equipment included as part of an adjustable-speed drive system shall have an ampacity not less than 125 percent of the rated input current to the power conversion equipment.
[13:19:31] <zeeshan> humble_sea_bass: what are you on about
[13:19:32] <zeeshan> haha
[13:19:32] <zeeshan> :D
[13:19:39] <CaptHindsight> heh, the NEC is similar to the bible, I used to pull odd sections out at time to mess with the inspectors
[13:19:43] <humble_sea_bass> you said you needed the conductor size
[13:19:49] <zeeshan> i know the conduit size
[13:19:52] <zeeshan> i dont know the conduit fill size
[13:19:54] <zeeshan> but now i do
[13:20:01] <CaptHindsight> the devil is in the exceptions
[13:20:05] <zeeshan> "i know the conductor size"
[13:20:06] <zeeshan> i mean
[13:20:09] <humble_sea_bass> oh CONDUIT
[13:20:12] <humble_sea_bass> not conductor
[13:20:30] <humble_sea_bass> I'm gonna go have a coffee. thanks for playing
[13:20:34] <zeeshan> hehe
[13:20:42] <CaptHindsight> he has quan. 4 of number 3 THHN
[13:20:49] <zeeshan> i should just run tec cable.
[13:22:22] <CaptHindsight> coffee sounds good, bbl
[13:31:22] <bobo_> zeeson are all of the "4" wires going to be -need to be- 3THHN ?
[13:32:00] <zeeshan> id like to keep it thhn because im running a metal conduit from the breaker box to the disconnect and running thhn in there
[13:32:12] <zeeshan> just need to figure out how to get wire from the disconnect to machine
[13:32:15] <zeeshan> cheaply :)
[13:33:13] <bobo_> no I mean the ground wire size
[13:33:21] <zeeshan> i
[13:33:28] <zeeshan> i'd like to keep the ground 3 awg too yes.
[13:34:10] <bobo_> makes sence to me also
[13:34:30] <zeeshan> im slapping myself for not buying this teck cable i found a little while ago
[13:34:34] <zeeshan> guy had 60 feet of it for $150
[13:34:42] <zeeshan> instead of metal conduit, i could have run that
[13:34:47] <zeeshan> but metal conduit looks cleaner...
[13:36:10] <Connor> I would use that liquid tight cable.
[13:36:22] <Connor> used for hot tubs and what not..
[13:36:31] <zeeshan> connor yes
[13:36:35] <zeeshan> its pretty much teck cable.
[13:36:44] <zeeshan> teck cable just has the wires through it already
[13:36:49] <bobo_> metal conduit looks cleaner only before it is used
[13:36:50] <Connor> not the metal armored cable.
[13:37:07] <Connor> zeeshan: You can get it both ways
[13:37:08] <zeeshan> http://www.ecswire.com/images/specs/teck90_1kv_copper_multi_conductor.jpg
[13:37:10] <zeeshan> thats teck
[13:37:22] <Connor> No. That's not what I'm talking about.
[13:38:08] <Connor> http://img.directindustry.com/images_di/photo-g/electrical-conduit-11746-2724525.jpg
[13:38:29] <bobo_> teck minus iner metal part
[13:38:39] <zeeshan> yea i was looking at that
[13:38:48] <zeeshan> i found a place 1 hour from me selling that for $50 in 1-1/4"
[13:38:52] <zeeshan> home depot wants 166$!
[13:38:54] <zeeshan> for 50 feet.
[13:39:03] <Connor> That's what *I* Would use.
[13:40:17] <bobo_> I like Connor s idea
[13:41:58] <zeeshan> okay so 1-1/4" metal conduit from panel to disconnect
[13:42:04] <zeeshan> flexible conduit from disconnect to machine
[13:42:08] <zeeshan> this is gonna cost a lot :P
[13:42:18] <Connor> What gauge wire you using ?
[13:42:23] <zeeshan> 3 awg
[13:42:39] <Connor> That sounds a bit big...
[13:42:45] <zeeshan> tis what i calculated
[13:42:55] <zeeshan> feel free to recalculate for me! :P
[13:43:14] <Connor> what gauge do you think they feed your house with ?
[13:43:16] <jdh> just use a couple of 18awg computer cords spliced together
[13:43:21] <zeeshan> connor definitely not 3 awg
[13:43:22] <bobo_> kick your self for not winning the lotto then
[13:43:26] <zeeshan> i have 200amp service
[13:43:36] <zeeshan> jdh lol
[13:43:38] <zeeshan> hahahaha
[13:44:19] <Connor> 2/0 for Copper @ 200 Amps
[13:44:29] <Connor> #4 ground (Copper)
[13:45:25] <zeeshan> sumitomo vfd 240vac 60A. , rest are 110vac.: vfd #1 9A, vfd #2 9A, psu #1 3A, psu #2 0.7A , pc supply 7A, fans 1A, lubricator 2A, 5 servo drive 15A
[13:45:31] <zeeshan> when you load balance it on l1 and l2
[13:45:35] <zeeshan> i get about 97A ..
[13:45:43] <zeeshan> under full blown out load :p
[13:45:54] <zeeshan> thats all worst case scenario.
[13:47:05] <zeeshan> when i do it close call wise..
[13:48:17] <zeeshan> sumitomo vfd driving 5hp motor -> 28A. vfd #1 -> 2.88A vfd#2 -> 2.88A,
[13:48:30] <zeeshan> servo drives are all around 12A.
[13:49:01] <zeeshan> maybe i should re work the math,.
[13:58:16] <bobo_> if the 220v pwr enters from the bottom CNC box and the VFD is in next box above then all VFD conducted electrical noise is draged back thru control box
[13:58:54] <zeeshan> its grounded
[13:58:59] <zeeshan> at the ground block.. on th ebottom box
[13:59:18] <zeeshan> are you talking about ground leakage currents
[13:59:24] <zeeshan> when you say electrical nosie ?
[14:00:00] <bobo_> conducted noise
[14:00:42] <zeeshan> google doesnt come up with conducted electrical noise
[14:00:45] <zeeshan> called something else maybe?
[14:00:52] <zeeshan> are you talking about the haramonics that get spit into the mains?
[14:01:12] <bobo_> into vfd input =3rd
[14:02:52] <zeeshan> not getting you :)
[14:02:53] <bobo_> 3rd harmonic
[14:03:29] <zeeshan> bobo_: yea i really should have an input side filter for the vfd
[14:03:30] <zeeshan> :/
[14:03:38] <zeeshan> maybe i will add one if i notice it is being a problem
[14:03:54] <zeeshan> i have a copper bus bar where the power distributes from in the enclosure
[14:04:04] <zeeshan> so all that noise is going to be attacking the power supplies, servo drives :P
[14:05:39] <bobo_> Hope noise is not an issue for yuo
[14:08:58] <bobo_> zeeson how is the new lathe coming along ? got it home yet ?
[14:09:58] <zeeshan> bobo_: i dont think i can get it. im sad about it
[14:10:04] <zeeshan> the moving cost is too much
[14:10:10] <zeeshan> space is also an issue.
[14:10:20] <zeeshan> i am picking up the manual mill from him on sunday though
[14:10:44] <zeeshan> im also talking to the local hacker space and asking them if they want it. ill donate it
[14:10:48] <zeeshan> and use it :-)
[14:11:03] <zeeshan> they might have their own moving trucks.
[14:11:30] <bobo_> zeeshan blow out a bedroom mayby ?
[14:11:47] <zeeshan> bobo_: i'd need to move my cnc lathe to the basement
[14:12:04] <zeeshan> and bead roller too
[14:12:09] <zeeshan> and it can work out space wise
[14:12:57] <bobo_> hacker space is way better than it going to scrap
[14:13:11] <zeeshan> its a beautiful machine
[14:13:18] <zeeshan> it'd hate to see it go to scrap
[14:13:22] <zeeshan> it works good too
[14:13:51] <zeeshan> its got a bit of wear on the v-ways about 8 thou
[14:13:58] <zeeshan> but the tool height changing by thou isn't a big deal
[14:14:04] <zeeshan> 8
[14:14:46] <bobo_> zeeshan may by thacker space the EDM machine also
[14:15:26] <zeeshan> maybe, but thats too much money to donate :)
[14:19:55] <bobo_> Its not my $ but you could get use of the EDM and it might bring in a new group of people who know what EDM is about
[14:20:42] <furrywolf> zeeshan: did you see the extra-annoying version of the gear menu? :P
[14:22:31] <zeeshan> furrywolf: yes
[14:22:34] <zeeshan> its awesome :)
[14:22:42] <zeeshan> im pretty impressed how quickly you put that code together
[14:22:52] <furrywolf> http://fw.bushytails.net/css/gears/imgmenu3.php is the animated one...
[14:23:13] <furrywolf> quickly? it took WAY too long. I've mostly been coding in C lately, my php and css were very rusty.
[14:23:42] <zeeshan> hell of a lot faster than it took me.
[14:24:26] <furrywolf> I spent way too much time making the gear teeth properly synchronized...
[14:25:30] <zeeshan> :D
[14:25:35] <zeeshan> now make them rotate
[14:25:36] <zeeshan> haha
[14:25:42] * zeeshan hides
[14:25:56] <zeeshan> http://pastebin.com/9fAc616E
[14:26:01] <zeeshan> bobo_ + connor
[14:26:13] <zeeshan> these are the absolutely non safety factored currents.
[14:26:15] <malcom2073> furrywolf: That hurts my eyes heh
[14:26:32] <furrywolf> zeeshan: http://fw.bushytails.net/css/gears/imgmenu3.php does rotate?
[14:27:29] <furrywolf> malcom: yes. you're not allowed to use it for an actual site. :P
[14:27:47] <zeeshan> so basically: l1 = 26.9+5.4+0.6+2.5+5+0.7+3.2+1.1+12+12 = 69.4A l2 = 26.9+5.4+15+12+12 = 71.3A
[14:28:07] <zeeshan> 71.3 * 1.25 safety = 89A..
[14:28:14] <zeeshan> so i need wires sized for 90A...
[14:28:16] <furrywolf> zeeshan: if it doesn't rotate, try firefox... it should!
[14:28:24] <zeeshan> furry they rotate!
[14:28:36] <zeeshan> but they have a glitch
[14:28:37] <zeeshan> haha
[14:32:43] <furrywolf> hit reload, see if it's fixed.
[14:32:50] <furrywolf> I was tired and didn't bother updating the backgrounds.
[14:33:17] <zeeshan> yep
[14:33:18] <zeeshan> fixed
[14:33:25] <furrywolf> :P
[14:33:33] <zeeshan> its hypnotizing me
[14:33:44] <zeeshan> especially the gear that says "CNC"
[14:33:46] <zeeshan> :D
[14:34:05] <furrywolf> lol
[14:34:11] * furrywolf likes the strapons one better
[14:34:56] <furrywolf> the animation isn't anything extremely complicated... it's just an animated GIF. heh.
[14:39:55] <bobo_> zeeshan the amp/wire size you have come up with seems useable (to me) the NEC code (to me ) takes in many factors of what can go wrong will go wrong and also go wrong as time goes on.
[14:40:21] <zeeshan> it looks like i can get away with 4awg
[14:40:59] <furrywolf> I just slowed the animation down. it's significantly less annoying now.
[14:43:16] <zeeshan> furrywolf: howd you make the rotating gif
[14:44:10] <furrywolf> brb
[14:45:08] <bobo_> temp rating rating of insulation is one of the main parts and I like equal size earth=ground wire
[14:52:14] <furrywolf> normally I'd use gimp's animation feature, but the version/options I have on this laptop seems to lack it, so I just duplicated the layer and rotated a few times.
[14:52:52] <zeeshan> ah cool
[14:55:28] <furrywolf> I just updated it so they're actually links you can click. :P
[14:55:45] <zeeshan> lol
[14:55:47] <zeeshan> hahahaha
[14:55:55] <zeeshan> youre having too much fun
[14:56:32] <furrywolf> of course, lacking actual pages, they just link to google.
[14:57:05] <zeeshan> does anyone know how people come up with the electrical rating of an electrical device
[14:57:10] <zeeshan> if its just a simple motor, its easy..
[14:57:27] <zeeshan> but when you have a combination of multiple motors, power supplies, drives, control electronics
[14:57:47] <zeeshan> do you just add them, and then go up to the next nominal size?
[14:57:54] <zeeshan> like in my case 71.3 A -> 80A ?
[14:58:25] <furrywolf> that works, or run it and monitor the current.
[14:58:34] <zeeshan> or you just state 71.3A , and then people know they need to protect it using 4awg wire rated w/ an 80 A breaker
[14:58:56] <zeeshan> furrywolf: thats true, but might be hard to simulate worst case scenario :P
[14:59:29] <furrywolf> the trickiest part of the animation is making half them run the opposite direction... you can't just use two images, as they won't synchronize... so I used css3's transform functions to mirror the same animation, making it turn backwards.
[15:00:16] <furrywolf> nec tells you to use the next commercially available size breaker... so if you rate it at 72A, nec says to use an 80A breaker. your design should make sure it doesn't become melty on an 80A breaker.
[15:06:46] <bobo_> zeeshan: Have you looked at Web site dialog5.com "Wessley's Project" ? He first laid the electronics out on plywood ,got it wired up and working then transfered that mock up to metal. One aspect of his conversion is using a DC capacitor bank for the VFD drive -and the precharge of the capacitor bank at turn on. He also coments about making his own servo power supplies. On y tube look for wez50 .
[15:07:34] <furrywolf> minor tweak... change the link font. heh.
[15:11:46] <Jymmm> XXCoder1: Not necessarily, every one I've seen so far, even LED strips too.
[15:22:06] <Tom_itx> http://ecmweb.com/content/cnc-machine-tool-grounding-pleading-your-case
[15:28:06] <Tom_L> http://usdigital.com/products/interfaces/encoder/cable-drivers/ea
[15:28:42] <Connor> zeeshan: One thing you need to consider is.. is EVERYTHING going to be running flat out.. I.E. What's the chances your going to have the Spindle running full out STALLED, and the X and Y and Z full out stalled?
[15:28:57] <zeeshan> highly unlikely.
[15:29:02] <Connor> exactly.
[15:29:12] <zeeshan> so maybe a 60A breaker might be ok.
[15:29:15] <Connor> so, you can use smaller wire and smaller breaker..
[15:29:33] <Connor> knowing that if you have too much, the breaker will save you.
[15:29:34] <zeeshan> its going to suck so much
[15:29:39] <zeeshan> if i have to rerun the wire
[15:29:39] <zeeshan> :(
[15:29:54] <Connor> Why are you going to have to rerun it ?
[15:30:02] <zeeshan> cause i'd have to pull the 6awg wire
[15:30:05] <zeeshan> and run 4awg.
[15:30:07] <zeeshan> or 3awg
[15:30:21] <Connor> Oh. What do you have? 6awg already ?
[15:30:28] <zeeshan> i have 6awg at home yes
[15:31:02] <zeeshan> im running a 1-1/4 conduit regardless of 6 awg of 3awg
[15:31:05] <zeeshan> *or
[15:31:10] <zeeshan> at least i wont have to re-run the conduit
[15:31:43] <Connor> Single 6gauge wire is good for 37amps for power transmission.
[15:31:52] <Connor> So, 3 Phase would be over 60amps.
[15:32:09] <zeeshan> 6awg for residential wiring assuming 40c ambient
[15:32:24] <zeeshan> is good for 68.25 A
[15:32:37] <Tom_L> i got a 60A on my 6awg
[15:32:40] <zeeshan> thats why its very common to see a 60A breaker protect that wire
[15:32:45] <Tom_L> 50 or 60... i forget
[15:32:52] <zeeshan> its 60 likely
[15:32:55] <Connor> http://www.powerstream.com/Wire_Size.htm
[15:33:02] <Connor> wonder why that says 37
[15:33:14] <Tom_L> hard to say... i wired it :D
[15:33:25] <zeeshan> ive seen that chart before
[15:33:30] <zeeshan> i dont know what asumptions theyre making
[15:33:35] <zeeshan> but nec 310.16 is better.
[15:33:40] <zeeshan> cause thats what the code states
[15:33:48] <zeeshan> http://prototypemachining.ca/Articles/WireCapacityCharts.html
[15:33:54] <zeeshan> table 310.16 has no derating on it.
[15:34:14] <zeeshan> so 90degC wire, 6 awg, 75A..
[15:34:24] <zeeshan> 40c derating factor .91 gives you 68.25A
[15:34:32] <Connor> Depends on the distance of the wire too.
[15:34:36] <Connor> and insulation.
[15:35:43] <Tom_L> there's a 2.4v drop over 50ft with a 60A load 6awg
[15:35:46] <zeeshan> insulation = 90 deg c.
[15:36:00] <Tom_L> 2.03%
[15:36:09] <zeeshan> v drop for hv inside a house i'd think is pretty insignfiicant
[15:37:11] <Tom_L> almost doubles for aluminum wire
[15:37:16] <Tom_L> use gold
[15:37:35] <Tom_L> they did that at the manhattan project :D
[15:42:16] <Tom_L> err excuse me.. they used silver
[15:42:52] <Tom_L> With copper in short supply, designers of the plant's giant magnets descended on a Treasury official in Washington one day and calmly proposed to borrow several thousand tons of silver from the U.S. mint--which they planned to melt down into wires.
[15:43:06] <Tom_L> http://articles.latimes.com/1985-08-05/news/mn-3468_1_manhattan-project/3
[15:56:57] <bobo_> zeeshun: why not install as large as possible amp capacity to a box or future distribution box on the wall - for now and later ?
[15:58:05] <zeeshan> bobo
[15:58:06] <zeeshan> nice idea.
[15:58:11] <zeeshan> instead of a disconnect switch
[15:58:14] <zeeshan> just have a breaker box :)
[15:59:51] <bobo_> just don't use breaker as machine disconnect
[16:00:02] <zeeshan> haha why not
[16:00:16] <zeeshan> it'll last like 5000 cycles
[16:00:21] <zeeshan> then ill replace it :P
[16:00:24] <Connor> because it's not a switch
[16:00:27] <zeeshan> still cheaper than a disconnect. i can't find a disconnect
[16:00:30] <zeeshan> for cheap
[16:00:37] <zeeshan> Connor: hell yes its a switch
[16:01:15] <zeeshan> infact, for industrial lighting
[16:01:26] <zeeshan> breakers are the almost always remotely tripped
[16:01:33] <zeeshan> or manually tripped to shut off all the lights to the plant
[16:01:54] <Connor> But, that's in cases when they're normally one 99.999% of the time.
[16:02:01] <zeeshan> no
[16:03:02] <zeeshan> im just trolling
[16:03:04] <zeeshan> i dont know what to do
[16:03:08] <zeeshan> i wannt it to be cheap :P
[16:03:54] <zeeshan> 60 amp disconnects are cheap
[16:04:02] <zeeshan> but 80 amp is hard to find.
[16:04:04] <Tom_itx> i got a big honkin relay on my compressor
[16:04:06] <Tom_itx> used
[16:04:29] <bobo_> 5K cycles for you for me it would be 5 cycles and a note from marketing of better luck next time
[16:04:40] <zeeshan> for my air compressor.. i dont have a disconnect.
[16:04:43] <Tom_itx> probably big enough to run your mill
[16:04:54] <zeeshan> but i do make sure to turn off the switch on the compressor before i turn off the breaker.
[16:04:56] <Tom_itx> i put a light switch on the relay to turn it on
[16:04:59] <zeeshan> so it won't wear out the contacts
[16:08:16] <Deejay> gn8
[16:09:11] <bobo_> maybe 2 switches for now (at the wall) 1 for big (60amp) and 1 for control power
[16:13:22] <furrywolf> I have a battery charger that uses a breaker as a switch. I also have a plasma cutter that uses a breaker as a switch. I've seen plenty of other things with breakers as switches...
[16:13:53] <Connor> I'm not saying you can't use a breaker as a switch.
[16:14:03] <Connor> I'm saying your really not suppose to.
[16:14:14] <Jymmm> Connor: Why not?
[16:14:17] <furrywolf> one is made in usa, the other italy, neither is garbage...
[16:14:19] <Tom_itx> the frequency of use may be much less than an overhead light on a switch
[16:14:33] <furrywolf> lambda us-made power supplies often have breakers as switches...
[16:14:52] <Jymmm> I've seen whole sets of lights wired directly to the breaker, there is no on/off switch.
[16:15:01] <Tom_itx> same here
[16:15:20] <furrywolf> same here. a place I was at once had all the lights in the entire building controlled from the breaker panel. old car dealership.
[16:16:16] <furrywolf> most impressive was the rollup door worked by a circuit breaker h-bridge. you had to turn on the right two to make it go up or down... the wrong two would both trip!
[16:16:40] <Jymmm> Ok, noe THAT needs a REAL switch
[16:16:51] <Jymmm> DPDT specifically =)
[16:16:59] <Jymmm> MOMintary
[16:17:26] <furrywolf> the wiring there was.... sketchy.
[16:17:32] <Jymmm> (mon)(off)(mon)
[16:17:49] <Jymmm> (mon)-off-(mon)
[16:18:39] <Tom_itx> just mount a large knife switch on the wall
[16:18:46] <Jymmm> lol
[16:18:50] <zeeshan> hahaha
[16:18:59] <zeeshan> with exposed contacts
[16:19:01] <zeeshan> i like it.
[16:19:12] <furrywolf> I'm not even sure how it was wired. it was all AC. I think one of them was turning on the main winding, and the other four switching how the start winding was wired.
[16:19:13] <Jymmm> Would need a resetable fuse, so you dont' burn out the motor at end of travle, lie a car window
[16:19:21] <Jymmm> travel*
[16:19:27] <furrywolf> I know if you turned on the wrong pairs, they'd instantly pop.
[16:19:56] <Jymmm> Yeah, had to be the opposite pairs.
[16:20:16] <furrywolf> the place had way, way, way too many breakers, since they worked everything in the building... many of them no one knew what they did... and no one knew how to make half the stuff in the building turn on either.
[16:20:18] <Jymmm> four breakers total iirc
[16:20:30] <furrywolf> we determined that if you turned one of them ON, the thrift store down the street lost power.
[16:20:38] <Jymmm> lol
[16:21:08] <furrywolf> lots of them could only be turned on one at time... i.e. you can have the outlets on one wall work, or the outlets on the other side of the wall work, but if you turned on both, you got neither.
[16:21:22] <Jymmm> thts kinda funny. If you turned it on, and lost power, did their lights turn back on?
[16:21:39] <furrywolf> it was a 3ft tall panel and two 2ft tall panels all wired together with a massive tangle of old cloth-insulated romex
[16:21:41] <zeeshan> http://www.ebay.com/itm/SQUARE-D-DU323-SAFETY-DISCONNECT-SWITCH-100-AMP-240-VAC-/291339928240
[16:21:46] <zeeshan> what do you guys see for price
[16:21:51] <furrywolf> jymm: don't recall.
[16:21:57] <zeeshan> for shipping
[16:22:08] <Jymmm> 35
[16:22:10] <furrywolf> I think there were a lot of open neutrals...
[16:22:15] <Jymmm> .09
[16:22:19] <furrywolf> $39.14
[16:22:23] <zeeshan> bah i see 81
[16:22:28] <Jymmm> 35.09
[16:24:53] <furrywolf> it probably has all new wiring now. it got taken over by a pot store and converted to a giant indoor grow... presumably they ripped out all the wiring.
[16:25:28] <Jymmm> furrywolf: Their growing????
[16:25:34] <Jymmm> they're*
[16:25:53] <furrywolf> yes?
[16:26:11] <furrywolf> where do you think the pot at a pot dispensery comes from? heh
[16:26:15] <Jymmm> furrywolf: I thought that was illegal. cant sell and grow
[16:26:25] <furrywolf> no
[16:26:27] <Jymmm> furrywolf: They buy from growers
[16:26:57] <furrywolf> they try to discourage buying from private growers here, to lower the number of private growers. instead they grow their own.
[16:27:01] <Jymmm> furrywolf: That's how most of the dispenseries down here do it, other thna oakland
[16:27:31] <Jymmm> furrywolf: cut out the middle man, but I also suspect it depends on the strains too
[16:27:51] <Jymmm> furrywolf: LOTS of cross pollenation in confined areas
[16:28:35] <Jymmm> furrywolf: and get a male, oh gawd quaranteen it asap
[16:29:15] * furrywolf doesn't use or grow
[16:29:48] <Jymmm> it's interesting art/science, but a hell of a lot of work.
[16:30:08] <Jymmm> especially for just a single species of plant.
[16:30:25] <furrywolf> in additional to legal issues, it invariably involves dealing with idiots. you have to buy your supplies from idiots, sell your product to idiots, have it trimmed by thieving tweaker idiots,...
[16:30:37] <Jymmm> I guess it's like grapes (wine), and agave (tequila)
[16:31:02] <Jymmm> Heh, in YOUR area, sure =)
[16:33:52] <furrywolf> I hope they finally legalize it, just so the idiots go away.
[16:39:58] <bobo_> zeeshan;: look at e bay 131356520610
[16:42:24] <zeeshan> hmm
[16:42:30] <zeeshan> i thought they might be ul508
[16:42:33] <zeeshan> but they look like ul98..
[16:42:37] <zeeshan> since theyre rated for ac 21.
[16:43:21] <bobo_> I need a typest who can also spell
[16:43:23] <evilren> 02:09:50 < Jymmm> furrywolf: I thought that was illegal. cant sell and grow
[16:43:32] <evilren> um, lots of dispensaries have grows in the shop
[16:43:56] <evilren> my fave one has windows under the TV's with the menus, behind the glass display counters
[16:44:10] <evilren> window looks into a huge grow room
[16:44:22] <evilren> its very legal to grow if youre a dispensary
[16:45:07] <evilren> almost every other type of grow is shady and subject to challenge in court, but dispensaries have the signatures to legally operate huge grows
[16:46:27] <CaptHindsight> I wonder how many lists you get put on for ordering hydroponics to a residential address in an urban area?
[16:47:36] <furrywolf> probably not many. no one really cares.
[16:49:22] <unfy> it's when your power bill goes up that they get concerned :D
[16:49:42] <Tom_itx> just show them your mill in the garage
[16:50:04] <Tom_itx> just make sure there are wires from it to some fake pannel though
[16:51:32] <CaptHindsight> I've heard of the interest that a sudden jump in power consumption raises. I wonder if it's just for electrical or if a jump in natural gas raises the same eyebrows
[16:52:27] <CaptHindsight> or 10 new windmills on the roof
[16:52:52] <unfy> my understanding is power
[16:52:55] <PCW> or a field of solar panels
[16:53:11] <furrywolf> they don't care how much power you use.
[16:53:23] <furrywolf> maybe elsewhere, but around here, growing is about as illegal as jaywalking.
[16:53:29] <unfy> ie: there was a story from vancouver or something where someone was running a mass bitcoin farm. they got raided with the fuckhead authorities looking for pot
[16:54:07] <furrywolf> you're about as likely to get caught, about as likely for them to care, and get about the same punishment.
[16:54:24] <unfy> furry: jurisdictional differences are fun.
[17:09:50] <CaptHindsight> in the midwest it's still the great Satan and helps to keep the prison industry out of financial trouble
[17:11:15] <furrywolf> in alabama, I'm a felon becuase I own more than five dildos. the midwest isn't exactly a benchmark for sane laws. :P
[17:17:09] <unfy> s/midwest/anyplace/
[17:18:18] <furrywolf> no, most places don't have laws against silicone.
[17:19:58] <furrywolf> bbl, working on the yard
[17:20:46] <mrsun> hmm anyone know how to get the whole size and shape for a hole that goes into the side of a cylinder ?
[17:20:49] <mrsun> right out at the dge
[17:20:51] <mrsun> edge
[17:21:19] <mrsun> http://woodgears.ca/dust_collector/cyclones.jpg like the one to the right
[17:21:23] <mrsun> or left ... :P
[17:24:39] <unfy> as in the shape of the cylinder as it intersects the circumference ?
[17:25:07] <mrsun> i guess ... the tube that comes from the side ...
[17:25:26] <CaptHindsight> you want to know how to size it?
[17:25:46] <mrsun> yes as the hole will not be axactly round )
[17:25:47] <mrsun> =)
[17:26:09] <furrywolf> http://math.stackexchange.com/questions/628624/surface-area-of-intersection-of-two-cylinders do math like that. :P
[17:26:57] <furrywolf> a good cad program should be able to spit it out numerically
[17:27:07] <CaptHindsight> mrsun: or do you want to know how to actually make the hole? and yes^^
[17:27:33] <mrsun> i want to know how to make the hole ...
[17:27:40] <unfy> for me, it'd just be draw both the chamber and then a full cylinder, then occlude the chamber after inserting the cylinder
[17:27:41] <mrsun> so i can fit a pipe in like that
[17:28:16] <CaptHindsight> mrsun: what are you making the cyclone from? sheet metal?
[17:28:22] <mrsun> yes
[17:29:20] <furrywolf> mrsun: cut a 45 degree angle on a piece of pipe. hold it against the cylinder in desired position. use a flat/straight pencil to trace around the pipe, using the length of the pencil to project onto the surface. cut out with torch/nibbler/whatever. stick pipe through hole. trace around pipe. torch/etc pipe.
[17:29:23] <furrywolf> no math needed. :)
[17:29:30] <CaptHindsight> mrsun: can you cut the opening while the sheet metal is still flat?
[17:29:49] <mrsun> no .. its already welded :P
[17:29:53] <_methods> you have to lay it out
[17:30:13] <furrywolf> the method I just gave is pretty easy.
[17:30:25] <mrsun> furrywolf: i guess =)
[17:30:30] <furrywolf> bbl
[17:30:44] <zeeshan> mrsun: can you clarify
[17:30:54] <zeeshan> you're trying to make a hole in the cyclone dust collector
[17:30:55] <zeeshan> ?
[17:30:58] <zeeshan> the left port?
[17:31:11] <mrsun> the port that comes in from the side yes
[17:31:17] <mrsun> a round hole in a flat surface isnt hard
[17:31:33] <zeeshan> and you said it's all welded together right now
[17:31:39] <zeeshan> so you're gonna use like a hole saw?
[17:31:45] <mrsun> no
[17:31:57] <CaptHindsight> mrsun: can you cut the port tube to the radius of the welded part?
[17:32:19] <zeeshan> mrsun: shears?
[17:32:29] <mrsun> zeeshan: doesnt realy mater WHAT i cut it with
[17:32:31] <zeeshan> i have done something like this before
[17:32:36] <_methods> are you going round into round?
[17:32:37] <zeeshan> but it all depends on how you're gonan cut it.
[17:32:41] <mrsun> question was HOW to get the hole shape
[17:32:43] <mrsun> =)
[17:32:46] <zeeshan> thats easy.
[17:32:48] <zeeshan> take a piece of paper
[17:32:52] <zeeshan> draw a circle of the diameter of the tube
[17:32:56] <CaptHindsight> there are few ways
[17:32:58] <zeeshan> wrap it to the outer cylinder.
[17:33:06] <zeeshan> trace the projection onto the cylinder.
[17:33:07] <zeeshan> done
[17:33:10] <mrsun> ehm...
[17:33:40] <mrsun> that wouldnt work :P
[17:33:43] <zeeshan> why
[17:34:01] <furrywolf> because it's the wrong shape. lol
[17:34:02] <_methods> is it round to round? or round to a cone?
[17:34:05] <zeeshan> haha
[17:34:12] <zeeshan> it works on my head :(
[17:34:13] <mrsun> round to round .. from the freakin side!
[17:34:17] <mrsun> how hard is it .. ive shown pictures! :P
[17:34:20] <_methods> on center?
[17:34:24] <zeeshan> no
[17:34:24] <_methods> or offset
[17:34:27] <zeeshan> its offset
[17:34:27] <furrywolf> it's round to round. but the intersection curve is a funky ellipsoid, not round.
[17:34:29] <zeeshan> he has pics man
[17:34:29] <zeeshan> lol
[17:34:41] <_methods> yes
[17:34:42] <mrsun> http://woodgears.ca/dust_collector/cyclones.jpg the port comming from the SIDES of the cyclone and thein baffle in that picture .. is what i want to cut out
[17:34:43] <zeeshan> mrsun: dont have cad?
[17:35:03] <furrywolf> manually projecting the curve is the easiest way. tack it together and use a straightedge if you have to.
[17:35:10] <_methods> i can lay it out for you
[17:35:25] <_methods> but i need to know the diameters and where you want to intersect
[17:35:26] <mrsun> zeeshan: well .. i can cut parts in cad programs i have yes .. but i cant that i know of make that part flat then so i can cut the shape from a paper then trace to the sheet metal
[17:35:33] <CaptHindsight> shine bright light down the tube, trace around the edge of light/dark
[17:35:53] <_methods> mrsun: that is the way to do it
[17:35:55] <zeeshan> mrsun: you use flat pattern
[17:35:59] <zeeshan> using sheet metal module
[17:36:10] <zeeshan> draw the big cylinder. project the circle pipe geometry
[17:36:15] <zeeshan> and flattern the pattern, print it 1:1
[17:36:22] <zeeshan> lay it out onto the big cylinder
[17:36:28] <mrsun> "sheet metal module" ?
[17:36:28] <zeeshan> lemme show u a pic.
[17:36:40] * furrywolf would have had it cut by now, by using simple and stupid methods, but actually doing it. :P
[17:36:46] <_methods> do you want me to lay it out for you?
[17:37:02] <mrsun> _methods: i do not have the numbers in my head now and im laying in bed ...
[17:37:20] <_methods> ok well let me know and i'll develop the patterns for you
[17:37:28] <CaptHindsight> use a laser with the same diameter as the tube, blast away :)
[17:37:57] <zeeshan> i was wrong with my paper circle thing earlier
[17:37:59] <CaptHindsight> get s9omeone here to CAD it for you and post a pdf template
[17:38:00] <zeeshan> you gotta cut the circle first
[17:38:02] <zeeshan> and project light lol
[17:38:31] <furrywolf> ... a straight edge is all you need for this project, or if it's small, just a flat pencil.
[17:38:46] <_methods> furrywolf: yes your method will work just fine
[17:38:47] <zeeshan> mrsun: this is what i mean.
[17:38:48] <zeeshan> http://s130.photobucket.com/user/turbozee84/media/sheetmetal_zps667cac4d.png.html?sort=3&o=269
[17:39:09] <_methods> i can create a flat pattern can wrap around the pipe then trace and cut also
[17:39:12] <_methods> i'ts up to him though
[17:39:17] <zeeshan> http://s130.photobucket.com/user/turbozee84/media/7CE0D7AA-7C1B-49CC-AF80-0B6041571B4B-8784-000009E9973C85BB_zps20aa0ea9.jpg.html?sort=3&o=268
[17:39:20] <mrsun> zeeshan: what program ?
[17:39:23] <mrsun> solid works ?
[17:39:24] <zeeshan> solidworks
[17:39:54] <zeeshan> basically i layed that 3rd pattern you see
[17:40:01] <zeeshan> around the table and traced it
[17:40:07] <zeeshan> and plasma awayed the metal
[17:40:27] <mrsun> well ... i do not have solid works .. nor do i want to warez it .. or buy it :P
[17:40:36] <zeeshan> inventor can do it
[17:40:42] <CaptHindsight> 3d print the two parts, use the small tube as a guide to cut the opening (see I found a way to use a 3d printer)
[17:40:48] <furrywolf> except he's joining two cylinders, not a cylinder and a curved cylinder...
[17:40:59] <furrywolf> lol
[17:41:00] <zeeshan> apparently freecad has it too
[17:41:04] <zeeshan> furrywolf: i know that.
[17:41:15] <zeeshan> he needs a flat pattern for the tube
[17:41:18] <furrywolf> freecad can do that? I guess I should try harder to download it.
[17:41:20] <zeeshan> and the curved cylinder
[17:42:12] <zeeshan> dont make me bust out cad !
[17:42:15] <mrsun> zeeshan: info on it about freecad ?
[17:42:53] <_methods> there's actually an awesome autocad lisp plugin that will layout most sheetmetal joints
[17:43:13] <zeeshan> http://forum.freecadweb.org/viewtopic.php?f=8&t=5049&start=10
[17:43:16] <zeeshan> i dunno this guy seems to do it
[17:43:18] <zeeshan> in this thread
[17:43:24] <zeeshan> i havent used freecad
[17:43:33] <CaptHindsight> http://www.dummies.com/how-to/content/how-to-graph-an-ellipse.html
[17:43:58] <CaptHindsight> http://www.mathopenref.com/coordgeneralellipse.html
[17:45:11] <CaptHindsight> http://www.math.tamu.edu/~tkiffe/calc3/newcylinder/2cylinder.html
[17:46:01] <CaptHindsight> http://paulbourke.net/geometry/cylinders/
[17:46:19] <zeeshan> math works
[17:46:22] <zeeshan> just more effort :P
[17:46:45] <_methods> this is a good book that explains simple sheetmetal joint and their layout
[17:46:48] <_methods> http://www.thesheetmetalshop.com/pdf_manual/pattern_book_part1.pdf
[17:46:58] <_methods> pg 31 has what you need
[17:47:38] <_methods> nm you need and offset
[17:47:47] <_methods> pg31 is a straight t joint
[17:50:06] <CaptHindsight> completely unrelated http://phys.org/news/2015-01-flatbed-scanner-cinderella-functioning-camera.html
[17:51:53] <_methods> this is another excellent book on pattern development
[17:51:56] <_methods> http://books.google.com/books?id=bLdAAAAAIAAJ&printsec=frontcover&source=gbs_ge_summary_r&cad=0#v=onepage&q&f=false
[17:53:44] <Jymmm> evilren: what state?
[17:54:37] <mrsun> oh well, gonna use the scribe method ... just cut the pipe aprox and push it against =)
[17:55:15] <Jymmm> pipe scribing??
[17:55:16] <XXCoder1> Jymmm: yeah just that its low wattage one. :)
[17:55:33] <Jymmm> XXCoder1: Doens't matter if it's 1/2 watt
[17:55:39] <Jymmm> XXCoder1: they get hot
[17:55:48] <XXCoder1> they all get warm yes
[17:56:03] <XXCoder1> just that its so riciously low. 1/2 watt probably is 100 times more wattage than it uses
[17:56:05] <Jymmm> 160F is not "warm"
[17:56:40] <_methods> mrsun: that is the best method to just "get'r dun"
[17:57:08] <mrsun> yeah im sure .. but as im not in the workshop now but laying in the bed im just trying to do some research =)
[17:57:26] <Jymmm> Think it's worth it? http://www.ebay.com/itm/Digital-controlled-Constant-Current-Voltage-LED-Driver-DC-Step-Down-Power-Module-/351035593447?pt=LH_DefaultDomain_0&hash=item51bb5a12e7
[17:57:28] <_methods> well those books will let you lay out any joint
[17:57:46] <CaptHindsight> guess I'll just delete my messages to NASA and MIT :p
[17:57:47] <Jymmm> https://www.youtube.com/watch?v=S_KjmF1iI9w
[17:57:51] <zeeshan> mrsun
[17:57:51] <zeeshan> you there?
[17:58:01] <mrsun> yes
[17:58:14] <Jymmm> CaptHindsight: you seeing aliens or ufo's again?
[17:58:15] <XXCoder1> forgot what posu is
[17:58:18] <XXCoder1> *psu
[17:58:34] <CaptHindsight> Jymmm: heh, "ask a scientist"
[17:58:46] <Jymmm> CaptHindsight: ah =)
[17:59:24] <XXCoder1> psu == power supply processor?
[17:59:34] <zeeshan> uploading pic.
[17:59:34] <Jymmm> CaptHindsight: Ask how H2O can be SO stable, yet so volitile individually.
[18:00:08] <XXCoder1> good thing we evolved in h20. otherwise we probably would dissolve in it. its one of most powerful solvents,
[18:00:41] <CaptHindsight> we still do
[18:00:45] <CaptHindsight> try it :)
[18:01:06] <zeeshan> mrsun: http://i.imgur.com/ljuKyaI.png
[18:01:08] <zeeshan> this is what you want?
[18:01:15] <zeeshan> that interesection
[18:01:37] <mrsun> yes where the red pipe meets the blue
[18:01:37] <XXCoder1> looks like derbis/air seperator
[18:01:48] <CaptHindsight> zeeshan: now go ahead and post the 1:1 drawing
[18:01:52] <XXCoder1> or kiln air injection for hotter kiln
[18:03:23] <CaptHindsight> I thought we only did peoples homework before 5pm est on Fridays
[18:04:02] <XXCoder1> its actually after 5 pm est and before 4:45 pm est
[18:04:06] <Jymmm> CaptHindsight: We NEVER do homework
[18:04:15] <Jymmm> ever
[18:05:18] <Jymmm> CaptHindsight: Else we are promoting dumbasses
[18:05:18] <XXCoder1> insane. http://deadstate.org/this-guy-solved-the-worlds-most-complex-rubiks-cube-in-about-7-hours/
[18:06:20] <Jymmm> XXCoder1: What a loser.... 7 hours, HA! 7 minutes is all ya need... http://www.cubesmith.com/Stickers.htm
[18:06:27] <XXCoder1> LOL
[18:07:08] <CaptHindsight> I have one where all the sides are the same color
[18:07:27] <XXCoder1> lol
[18:08:53] <zeeshan> mrsun: when you get the diemsnions let me know
[18:08:57] <zeeshan> ill upload the 1:1
[18:09:54] <XXCoder1> Jymmm: try sticker method with this http://deadstate.org/this-guy-solved-the-worlds-most-complex-rubiks-cube-in-about-7-hours/ lol
[18:10:14] <Jymmm> XXCoder1: I saw it, liek I said above... 7 minutes.
[18:10:45] <zeeshan> http://i.imgur.com/l35HQmh.png
[18:10:47] <zeeshan> interesting looking shape
[18:11:04] <zeeshan> you wrap a piece of paper with a 1:1 drawing of that around your tube
[18:11:05] <Jymmm> zeeshan: of?
[18:11:05] <zeeshan> trace it
[18:11:06] <XXCoder1> its 1000x1000x1000 rubik. that's 6,000,000 stickers
[18:11:09] <zeeshan> cut the pipe
[18:11:11] <XXCoder1> assuming it was physical
[18:11:16] <zeeshan> lay it on your big cylinder
[18:11:19] <zeeshan> trace. cut.
[18:11:26] <zeeshan> Jymmm: http://i.imgur.com/ljuKyaI.png
[18:11:31] <zeeshan> intersection of that
[18:11:55] <zeeshan> i like geometry
[18:12:18] <Jymmm> zeeshan: Is the outside of the pipe flush with the large cylinder?
[18:12:23] <zeeshan> yea
[18:13:24] <Jymmm> that is pretty cool. I wonder if there is soem basis for the shape itself
[18:13:33] <zeeshan> they posted links earlier
[18:13:40] <Jymmm> other than looking like a waveform
[18:13:46] <zeeshan> intersection of a cylinder and cylinder
[18:13:50] <zeeshan> gives you paraboliod
[18:13:53] <_methods> 360 degrees man
[18:14:20] <Jymmm> the peakand valeys are not symetrical
[18:14:20] <zeeshan> _methods huh
[18:14:35] <zeeshan> Jymmm: wont be
[18:14:47] <zeeshan> enough of this!
[18:14:52] <_methods> a circle is 360 degrees
[18:15:27] <zeeshan> well if youre looking at it from a planar view yes
[18:15:31] <zeeshan> but if you look at from a surface view
[18:15:36] <Jymmm> zeeshan: I bet if you plot the rise, you'll find a pattern
[18:15:36] <zeeshan> its looks like a tear drop
[18:16:25] <CaptHindsight> are teardrops just two intersecting cylinders?
[18:16:34] <zeeshan> http://i.imgur.com/rIIX04D.png
[18:16:52] <XXCoder1> CaptHindsight: with offset
[18:16:54] <Jymmm> looks like an eye =)
[18:17:10] <zeeshan> http://i.imgur.com/I0DiH2J.png
[18:17:10] <XXCoder1> Jymmm: it should look like oval when it hits exactly center right?
[18:17:12] <zeeshan> planar view is a circle
[18:17:18] <zeeshan> it has to be
[18:17:21] <zeeshan> since its a tube :P
[18:17:32] <_methods> hey now you're getting it
[18:17:40] <zeeshan> i got it
[18:17:53] <zeeshan> earlier, i just for some reason thought a circle could wrap around that.
[18:18:05] <zeeshan> like a paper with a circle wrap around a cylinder
[18:18:09] <Jymmm> zeeshan: I'm guessing it you plot the x to Y of this, you'll find a pattern/formula http://i.imgur.com/l35HQmh.png
[18:18:10] <zeeshan> should give that
[18:18:20] <zeeshan> lemme just try lol
[18:18:27] <XXCoder1> variant of sin or cos?
[18:18:35] <zeeshan> yea it does not
[18:18:55] <zeeshan> XXCoder1: you can reprsent everything as sin and cos !
[18:18:57] <zeeshan> math functions that is
[18:18:58] <zeeshan> haha
[18:19:07] <zeeshan> fourier series :D
[18:19:19] <XXCoder1> wish I learned more about fourier but I has basucs
[18:19:25] <zeeshan> http://i.imgur.com/vSMzO5M.png
[18:19:32] <zeeshan> thats all fourier series
[18:19:42] <zeeshan> buncha sin and cos
[18:22:07] <mrsun> will be fun to see if a thain baffle works on mdf dust tomorrow .. got a real problem with that frekkin dust since i started using my cnc router more =)
[18:22:31] <XXCoder1> nice
[18:24:19] <Jymmm> mrsun: My solution... http://i53.tinypic.com/2881ef.jpg
[18:24:34] <zeeshan> Jymmm: i see a lot of space !
[18:24:54] <Jymmm> zeeshan: to infinity and beyond?
[18:24:58] <zeeshan> haha
[18:25:07] <Jymmm> zeeshan: space in what?
[18:25:09] <zeeshan> is that a router?
[18:25:12] <mrsun> Jymmm: well .. you will need to extract the dust sooner or later ...
[18:25:15] <mrsun> my problem is full bags ...
[18:25:17] <zeeshan> Jymmm: generally floor space
[18:25:20] <zeeshan> to put th ings on :)
[18:25:34] <Jymmm> zeeshan: OLD photo
[18:25:38] <zeeshan> ah
[18:25:55] <Jymmm> mrsun: Dust collector ataches to the rear of the enclosure
[18:26:00] <XXCoder1> mrsun: http://woodgears.ca/dust_collector/cyclone.html
[18:26:13] <Jymmm> mrsun: or shopvac
[18:26:43] <Jymmm> mrsun: if you have mdf dust, just add a lil glue as a binder and make something =)
[18:26:56] <mrsun> XXCoder1: that is what im building ..
[18:26:57] <XXCoder1> make mdf from mdf dust
[18:27:01] <Jymmm> mrsun: Toss together some quick form molds.
[18:27:13] <mrsun> thein baffle
[18:27:24] <XXCoder1> expoxy mdf dust
[18:28:22] <_methods> the explosion chamber lol
[18:28:40] <Jymmm> mrsun: plastic trashcan, done... http://www.woodcraft.com/Articles/Articles.aspx?articleid=408
[18:29:42] <Jymmm> zeeshan: Yes, it's a router... http://i51.tinypic.com/28lrg9u.jpg
[18:29:50] <mrsun> ive almost built the whole baffle already .. all i need is an inlet pipe =)
[18:29:51] <zeeshan> oo nice.
[18:30:10] <XXCoder1> this is made by crackpot vbuyt alum swarf epoxy is cool
[18:30:12] <XXCoder1> http://i814.photobucket.com/albums/zz63/monsoongecko/Orgonite%20Photos/DSC03633.jpg
[18:30:12] <zeeshan> is that silk scren?
[18:30:35] <Jymmm> zeeshan: on?
[18:30:41] <zeeshan> the frame outside
[18:30:43] <zeeshan> to keep dust in
[18:30:56] <XXCoder1> more crackpot pictures http://shopofenlightenment.com/forum/images/pics_rev/tb&hhg.jpg
[18:31:12] <XXCoder1> I do want paperweight of that :) not because it has "magic" effects or anything
[18:31:50] <Jymmm> zeeshan: The frames are covered in clear thick mil vinyl, then with SS screen (which are all earth grounded) to disipate ESD.
[18:32:01] <zeeshan> ah.
[18:32:08] <Jymmm> well, the other way areound.
[18:32:19] <zeeshan> the main reason i dont want wood working tools is dust
[18:32:21] <zeeshan> (in the basement)
[18:32:26] <zeeshan> but that looks like a good solution
[18:32:31] <Jymmm> less of a fire hazard with mdf dust
[18:32:45] <Jymmm> Each wall, panel is held together with two bolts.
[18:33:30] <Jymmm> then bolted to the tabletop. earthquake proof
[18:33:48] <Jymmm> which is really a modofied gorill arack rated as 1200 lbs
[18:34:33] <Jymmm> and the door are easily removable by pulling the 4 pins
[18:35:13] <Jymmm> fresh air is brougt in from the top, forcing everything downward
[18:36:15] <Jymmm> "Down and to the rear.... Down and to the rear" on the grassy knoll
[18:39:48] <zeeshan> :D
[18:39:54] <Jymmm> I think I'm going to get one, anyone see any cavets ($15)??? https://www.youtube.com/watch?v=S_KjmF1iI9w
[18:40:11] <zeeshan> does anyone know the legality of using a 3 pole switch
[18:40:14] <zeeshan> in a single phase app
[18:40:24] <zeeshan> i can't see it being dangerous :P
[18:41:03] <unfy> 3A ? off that heat sink ?
[18:41:16] <Jymmm> max 3a, nominal 2a
[18:42:17] <Jymmm> unfy: There is a 400W version with a MONSTER heatsink (bigger than the whole device)
[18:42:24] <alex____w> i was just playing with a very similar but simpler device, the heat sink wasn't even getting warm at 3 amps
[18:42:52] <zeeshan> http://www.cesco.com/b2c/product/Schneider-Electric-Square-D-DU323-Non-Fusible/33518
[18:42:55] <zeeshan> ok i answered my own q
[18:42:56] <Jymmm> But $15 for a CC device doens't seem too bad at all
[18:43:02] <zeeshan> this specific switch has both a single phase and three pahse rating :P
[18:43:04] <XXCoder1> just found log of this channelk
[18:43:20] <unfy> i have concerns over the heat sink, but otherwise it seems neat.
[18:43:55] <Jymmm> unfy: If you have suggestion for the heatsink, I'm open but I dont have any thermal condustive adhesives
[18:43:57] <alex____w> Jymmm: url to purchase location?
[18:44:30] <Jymmm> alex____w: lots of them, ebay, dx, ft, etc
[18:44:37] <Jymmm> amazon
[18:44:38] <unfy> jymm: get it - if the heat sink is a concern you can do something about it :D
[18:44:59] <Jymmm> http://www.dxsoul.com//product/b3603-dc-dc-constant-voltage-current-step-down-module-green-901247601
[18:45:00] <unfy> or, if you're electronics handy, build your own bench/lab power supply :D
[18:45:12] <Jymmm> unfy: not for $15 =)
[18:47:24] <Jymmm> unfy: http://www.ebay.com/itm/1pcs-Digital-Led-400W-10A-constant-voltage-constant-current-DC-DC-Boost-module-/171550020025?pt=LH_DefaultDomain_0&hash=item27f12d91b9
[18:48:21] <alex____w> i'm using this one, but can't get it to over 2 amps
[18:48:23] <alex____w> http://www.amazon.com/DROK-4-5-30V-0-8-30V-Converter-Constant/dp/B00C4QLK52/ref=sr_1_13?ie=UTF8&qid=1420244845&sr=8-13&keywords=dc%2Fdc+buck
[18:48:32] <alex____w> similar functionality without the nice ui
[18:50:22] <XXCoder1> I first entered here 3/15/14 apparently
[18:50:23] <unfy> it's one of those things where... at $15 - it's not terrible. You still need a decent input power supply (but an old computer supply can prolly handle that).
[18:50:35] <XXCoder1> then I asked what could linuxcnc do
[18:50:44] <XXCoder1> man feels so long time ago :P
[18:51:27] <alex____w> unfy: i'm using this to test battery capacity, so lead acid battery is a pretty decent power supply
[18:51:30] <XXCoder1> ich... too bad hes away long term now. he joked about gcode :P
[18:51:46] <alex____w> i just want a constant 3.75 amp draw no matter the input voltage to get 20C capacity
[18:52:22] <unfy> i really need to finish up home pcb making stuff and go about building my own power supplies :D
[18:53:47] <zeeshan> WHY IS IT SO HARD
[18:53:54] <zeeshan> TO FIND a bloody 100 amp disconnect switch locally
[18:53:59] <zeeshan> i can only find them for 300 bux
[18:53:59] <zeeshan> wtf
[18:54:06] <jdh> sounds like you found one.
[18:54:11] <zeeshan> its a frigging blade with legs
[18:54:13] <XXCoder1> build your own?
[18:54:16] <zeeshan> haha XXCoder1
[18:55:11] <unfy> homedepot at $100
[18:55:13] <furrywolf> alex: you probably do not want a switching regulator for constant _input_ current. a more typical method would be an adjustable 5A linear regulator and a resistor.
[18:55:19] <unfy> dunno where you're located :D
[18:55:48] <zeeshan> http://www.homedepot.com/p/GE-100-Amp-240-Volt-Fusible-Indoor-General-Duty-Safety-Switch-TG3223/202978655?N=5yc1vZbm0h
[18:55:51] <zeeshan> if youre talking about that one
[18:55:59] <unfy> to append to furry's statement, many linear regulators can be setup in a constant current mode rather than constant voltage
[18:56:07] <zeeshan> http://products.geindustrial.com/IndustrialProducts/Dispatcher?REQUEST=SPECPAGE&CATALOG=ED&PRODUCT_NUMBER=TG3223
[18:56:13] <unfy> you'd then need a second device following it for constant voltage
[18:56:17] <furrywolf> what's the one in to3 that does 6A?
[18:56:27] <zeeshan> it says something about 15 hp max ?
[18:56:40] <zeeshan> 15*746 = 11190 W.
[18:56:47] <zeeshan> 11190 / 240 = 46.6A
[18:56:51] <zeeshan> how is that 100 A?
[18:56:55] <zeeshan> im confused.
[18:57:22] <furrywolf> vars. :P
[18:57:25] <Jymmm> zeeshan: The back of any building you'l find a 100A CHEAP =)
[18:57:31] <zeeshan> Jymmm: haha
[18:57:34] <zeeshan> ill pay 90 bux for it
[18:57:37] <zeeshan> not 300
[18:57:41] <furrywolf> it can supply 100A continuously into a resistive load. a motor is not a resistive load.
[18:57:43] <zeeshan> but these ratings are th rowing me off.
[18:57:44] <Jymmm> zeeshan: CL /
[18:57:46] <Jymmm> ?
[18:57:47] <syyl_> a motor load is different from a restistive load
[18:58:01] <zeeshan> okay well i have a vfd between my motors
[18:58:07] <zeeshan> what kind of load is that? :-)
[18:58:35] <furrywolf> for one, a motor has a poor power factor, so you're actually cycling power back and forth... the current through the wire (and switch terminals) is higher than the current you're actually consuming.
[18:58:44] <zeeshan> 3 vfds, 4 power supplies, 5 servo drives, couple of light duty fans
[18:58:55] <zeeshan> will this siwtch work
[18:58:57] <Jymmm> unfy: You use old laptop PS, typically 19VDC @ 2-3A
[18:59:05] <furrywolf> another factor is the ability for the switch to withstand the startup load. that motor is a dead short when you first turn the switch on. thousands of amps. pitting, contact welding, etc.
[18:59:13] <unfy> jym: or that :D
[18:59:22] <unfy> depends on how much oomf you're wanting etc
[18:59:42] <furrywolf> VFDs are either rectifier input or PFC input... PFC is better, rectifier is more common. both are closer to resistive loads than a motor is.
[18:59:53] <Jymmm> unfy: Or this, which also shows the one cavet with the module... https://www.youtube.com/watch?v=9YeFHQse-8o
[19:00:12] <zeeshan> what about SMPS?
[19:00:29] <furrywolf> your power supplies etc are probably irrelevant, if they're less than 10% the size of your motors...
[19:00:58] <furrywolf> since you're not switching motors directly, I'd say you can use it at its full 100A rating.
[19:01:20] <zeeshan> okay, thank you for making sense
[19:01:26] <zeeshan> basically trhat 15hp rating is equivalent to say
[19:01:28] <zeeshan> ac 21.
[19:02:09] <alex____w> zeeshan: what machine has 5 servo drives and 3 vfds?
[19:02:20] <furrywolf> alex: a fun one!
[19:02:29] * furrywolf has no idea what it is either
[19:02:34] <zeeshan> alex_jon1: my mill
[19:02:38] <zeeshan> https://www.flickr.com/photos/128539016@N05/15985743197/
[19:02:55] <zeeshan> ill be adding a tombstone 5 axis
[19:03:18] <Jymmm> pizza?
[19:03:21] <alex____w> what are the 3 vfds powering?
[19:03:25] <zeeshan> spindle motor
[19:03:27] <zeeshan> hydraulic pump
[19:03:29] <alex____w> i'm converting a hurco bmc30 vmc to linuxcnc now
[19:03:31] <zeeshan> coolant pump :P
[19:03:39] <alex____w> wow, big coolant pump
[19:03:46] <zeeshan> no its just 3 phase
[19:03:56] <zeeshan> i had the vfd laying around, so it was cheaper to use the pump as is
[19:03:59] <alex____w> ah, i see
[19:04:01] <zeeshan> than finding another coolant pump
[19:04:19] <alex____w> the hurco that i'm working on is in a space that is wired 3 phase, so i haven't paid attention to what the smaller motors are
[19:04:32] <zeeshan> likely they are 3 phase too
[19:04:36] <alex____w> yes, i'm pretty sure they are
[19:04:42] <zeeshan> honestly if i could go back.
[19:04:49] <zeeshan> i'd have replaced the hydraulic motor and coolant motor with a single phase
[19:04:59] <zeeshan> vfd isn't needed
[19:05:10] <zeeshan> but it does make modbus communication possible instead of relying on relays
[19:05:15] <furrywolf> but now you can reduce coolant flow so you can see small jobs... :P
[19:05:30] <zeeshan> yea that is an advantage
[19:05:34] <zeeshan> but you can do the same thing with a valve lol
[19:05:46] <alex____w> this one actually has 3 coolant pumps, flood, mist, and washdown pump
[19:05:46] <zeeshan> "on the fly coolant change!"
[19:06:18] <zeeshan> eek
[19:06:21] <zeeshan> they might be expensive to change.
[19:06:32] <zeeshan> maybe use one vfd to power all 3
[19:06:37] <zeeshan> with contactor is between
[19:06:38] * furrywolf only can afford small toys. :(
[19:06:42] <alex____w> i don't have to, it's in a workshop that has 3 phase
[19:06:45] <zeeshan> oh
[19:06:51] <alex____w> this isn't my toy, i'm just doing the conversion to linuxcnc
[19:06:54] <bobo_> can also reverse coolant pump breafly to stop dripping
[19:08:06] <alex____w> http://alexandchristine.smugmug.com/Home-Machine-Shop/Hurco-BMC30-drawings/i-MQJ2Hj3
[19:08:12] <alex____w> that's the machine, just after delivery
[19:08:26] <alex____w> including the old console
[19:09:23] <zeeshan> alex very nice
[19:09:28] <alex____w> now everything but the tool changer is working under linuxcnc
[19:10:26] * zeeshan is going to be cheap
[19:10:31] <zeeshan> im running a subpanel
[19:10:35] <zeeshan> and just using a breaker as a switch
[19:10:44] <alex____w> my personal machine is just a taig
[19:10:45] <zeeshan> it's not like ill be switching it on/off 10 times a day
[19:10:54] <alex____w> can't get big machines into my basement
[19:10:59] <furrywolf> and with the vfds, it's not like you'll be switching it under load.
[19:11:04] <zeeshan> furrywolf: exactly
[19:12:17] <alex____w> i also have a small knee mill (grizzly g3102), but it's not a great candidate for cnc conversion
[19:12:48] <furrywolf> I have a cnced sherline, and am cncing a shoptask now.
[19:13:02] <alex____w> i don't know what a shoptask is
[19:13:20] <zeeshan> furrywolf: come get that huge lathe
[19:13:23] <zeeshan> 300$!
[19:13:53] <furrywolf> nowhere to put it
[19:13:58] <alex____w> ah, it's a 3 in 1 type machine
[19:14:20] <furrywolf> alex: http://fw.bushytails.net/shoptask02.jpg chinese mill/lathe combo
[19:14:44] <furrywolf> no, it's only a 2-in-1.... my older model doesn't have a drill press style Z feed, just handwheel.
[19:16:09] <alex____w> what drives and axis motors are you using?
[19:17:16] <furrywolf> some 940ozin pacsci stepper motors and centent cn0165 drives.
[19:17:25] <furrywolf> all well used... can't afford new things.
[19:17:42] <alex____w> everythign on this hurco is well used!
[19:17:51] <alex____w> we're using the original yaskawa ac servo drives
[19:19:48] <alex____w> my taig uses pacsci steppers, but much smaller than 940ozin
[19:19:53] <alex____w> they are around 200
[19:20:29] <furrywolf> yeah, these are beefy... about 10lbs each, running at 8.6A/phase.
[19:20:39] <humble_sea_bass> that hurco controller
[19:20:48] <humble_sea_bass> holy shit monochrome goodness
[19:20:52] <Jymmm> Expensive, but a great idea... http://www.ikea.com/us/en/catalog/products/40051196/
[19:21:11] <bobo_> zeeshan: which side of the mill's base is the drain for lub. oil and overflow coolant on ?
[19:21:32] <alex____w> humble_sea_bass: the control software is dos based, 486/isa PC, with a special video controller to handle the second display
[19:21:58] <humble_sea_bass> dog my peepers can see that amazingness all the way from here
[19:22:01] <alex____w> left display is used for text, right display is used to draw the trace
[19:22:11] <zeeshan> bobo_: you tell me!
[19:22:17] <zeeshan> the other day i tried to put the coolant pump in the drain
[19:22:21] <zeeshan> but it didnt fit in right.
[19:22:27] <zeeshan> i think there might have been an external tank!
[19:22:38] <alex____w> http://alexandchristine.smugmug.com/Home-Machine-Shop/Hurco-BMC30-drawings/i-Pfjv5Xc
[19:22:42] <alex____w> better photo from a few days ago
[19:22:53] <furrywolf> or at least some screening and filtering device
[19:22:57] <alex____w> and roughly a current view of the wiring cabinet, mid-hacking:
[19:22:59] <alex____w> http://alexandchristine.smugmug.com/Home-Machine-Shop/Hurco-BMC30-drawings/i-sbDwjfdhttp://alexandchristine.smugmug.com/Home-Machine-Shop/Hurco-BMC30-drawings/i-sbDwjfd
[19:23:03] <alex____w> oops
[19:23:05] <alex____w> http://alexandchristine.smugmug.com/Home-Machine-Shop/Hurco-BMC30-drawings/i-sbDwjfd
[19:23:09] <Jymmm> alex____w: vga and mono chrome work natively under dos
[19:23:47] <alex____w> Jymmm: yes, they do, but i promise this is a special video controller
[19:24:03] <Jymmm> alex____w: I'm saying so you dont have to hav a special controller
[19:24:05] <furrywolf> that's a lot of wiring. :P
[19:24:05] <alex____w> i'm old, i wrote a lot of code under dos and built pcs back then too
[19:24:32] <furrywolf> my control box is going to be about 16" square and 5" thick...
[19:24:36] <zeeshan> LOL
[19:24:43] <alex____w> furrywolf: that's about the size of the control box for my taig
[19:24:49] <zeeshan> fun stuff
[19:24:52] <zeeshan> so much cat5!
[19:24:52] <alex____w> i know what far too many of these hurco wires do
[19:24:59] <Jymmm> alex____w: I'll sell ya a brand new 8 bit isa paraport/monochrome card for ONE BILLION DOLLARS manual included
[19:25:05] <zeeshan> is that vairspeed thing
[19:25:06] <zeeshan> a vfd?
[19:25:13] <alex____w> yes, that is the spindle vfd
[19:25:17] <zeeshan> that is huge
[19:25:19] <alex____w> then the 3 servo drives to the right of it
[19:25:22] <XXCoder1> "holy shit monochrome goodness" huh whats I miss while I was fixing van lol
[19:25:33] <zeeshan> so much for vfds emitting noise all over to the control
[19:25:48] <zeeshan> im keeping this picture for future reference when someone talks about vfd being in the same enclosure as controls
[19:26:05] <furrywolf> are you keeping the console, or building a modern one?
[19:26:09] <alex____w> anything sensitive to noise in this control is balanced
[19:26:15] <alex____w> we're building a modern one, this one is pretty dead
[19:26:22] <zeeshan> i see a mesa card :-)
[19:26:28] <XXCoder1> wow that's old hurco
[19:26:35] <furrywolf> if it's got a MPG, I call dibs. :P
[19:26:35] <alex____w> 1995
[19:26:35] <zeeshan> looks like youre using shielded cat5e?
[19:26:36] <humble_sea_bass> xx, one of those old dos monochrome displays which seem to provide a lot more information than the fancy new displays
[19:26:47] <Jymmm> furrywolf: Heh, I thught it was a sewing machine at first glance.
[19:26:52] <XXCoder1> ahh humble
[19:26:54] <alex____w> zeeshan: mix, encoder cables are sheilded
[19:27:14] <zeeshan> alex____w: i was questioning about that a couple weks ago :P
[19:27:26] <alex____w> and that is a 20hp spindle drive
[19:27:29] <alex____w> that's why it is huge
[19:27:36] <zeeshan> ah
[19:27:37] <alex____w> servos are 8hp
[19:27:43] <zeeshan> thats nice :D
[19:28:02] <alex____w> 24000mm/min rapids
[19:28:19] <zeeshan> 944 ipm
[19:28:20] <zeeshan> haha
[19:28:21] <alex____w> it's actually an all metric machine
[19:28:30] <alex____w> leadscrews are 12mm pitch
[19:28:46] <alex____w> and yes, that is a mesa board, 7i77
[19:28:52] <alex____w> we're going to run out of i/o soon and will need to add a second one
[19:28:57] <furrywolf> alex: want to get rid of the control pendant on the very left of the console?
[19:29:03] <zeeshan> what is consuming all the i/o?
[19:29:06] <alex____w> tool changer uses 10bit graycode as the encoder, which eats a lot of i/o
[19:29:09] <zeeshan> ah
[19:29:19] <alex____w> furrywolf: i don't know yet, we may reuse it
[19:29:31] <Tom_itx> alex____w sserial...
[19:29:36] <alex____w> http://alexandchristine.smugmug.com/Home-Machine-Shop/Hurco-BMC30-drawings/i-qmDbCgk
[19:29:41] <furrywolf> what I really want to do is mount three mpg handwheels on a small box....
[19:29:46] <alex____w> schematic for the tool changer
[19:30:02] <alex____w> that basically eats 75% of the i/o on a 7i77
[19:30:20] <bobo_> zeeshan : maho has seperate coolant tank ,which sets on floor at left side of base . coolant in and out are on tank ,but also has scoop for catching lub oil draining from hole in base.base drain hole is about mid way front to back of base.
[19:30:22] <alex____w> furrywolf: i'll let you know if we end up with a new mpg
[19:31:47] <alex____w> have you guys used the cheap chinese ones? (hxc-hb04 or something)?
[19:31:57] <alex____w> are they mostly garbage, complete garbage, or usable?
[19:32:10] <furrywolf> I've never used a mpg, chinese or otherwise.
[19:32:17] <Tom_itx> i'm using one
[19:32:20] <Tom_itx> seems ok to me
[19:32:23] <alex____w> the hurco one actually works quite nicely, i just haven't looked at the schematics yet to see how easy it will be to interface to
[19:32:39] <alex____w> Tom_itx: is it sealed at all? or will coolant destroy it?
[19:32:56] <alex____w> not that i intentionally plan on bathing it
[19:32:57] <Tom_itx> oh i just got the MPG and made my own
[19:33:06] <alex____w> ah, okay
[19:33:16] <evilren> jymmm: california, los angeles
[19:33:27] <alex____w> furrywolf: i just use an xbox controller on my taig, but the mpg and pendant on the hurco is so much nicer
[19:33:30] <zeeshan> bobo_: makes sense.
[19:33:32] <evilren> the other two cities in california ive lived in are delivery only
[19:33:34] <zeeshan> looks like i need an external tank.
[19:33:42] <zeeshan> explains why it did not fit correctly.
[19:35:09] <furrywolf> filter well!
[19:38:23] <bobo_> zeeshan: does your mill base have a drain hole ? approx. 3/4 D ?
[19:38:30] <zeeshan> yes
[19:38:34] <zeeshan> 2 of them
[19:41:04] <bobo_> 2 holes? may have been for locating coolant on either side - or two tanks
[19:46:41] <bobo_> mayby one hole for coolant and other for lub oil drain . are the drain holes threaded?
[19:47:50] <zeeshan> yes they are
[19:48:59] <bobo_> maho is not threaded yet
[19:52:34] <zeeshan> bobo_: how is your conversion coming along
[19:52:34] <zeeshan> :P
[19:54:48] <bobo_> I am a wimpy old fart ---It is in a very cold garage. waiting for ice bergs to retreat
[19:54:59] <furrywolf> there's a free wide format printer on craigslist... just sent them an email. epson 7600. it'll be a big upgrade from my designjet 220.
[19:55:07] <zeeshan> haha
[19:55:19] <zeeshan> its been very cold lately.
[19:55:24] <zeeshan> thats why i havent stepped in to finish up the wiring
[19:55:32] <zeeshan> i need a break from it :)
[19:56:03] <alex____w> i've been doing all of this hurco stuff in an unheated workshop, it's annoying typing with gloves on
[19:56:09] <alex____w> but it's the time that i have to do it, so we're doing it nwo
[19:56:17] <zeeshan> i dont mean offence to electrical engineers
[19:56:20] <zeeshan> but i have a complaint.
[19:56:26] <furrywolf> 220ml ink carts! I bet those ain't cheap.
[19:57:13] <zeeshan> https://www.flickr.com/photos/128539016@N05/16106238952/
[19:57:18] <zeeshan> these amc designers
[19:57:21] <zeeshan> wow just wow.
[19:57:38] <bobo_> the IEEE is wateing
[19:57:44] <zeeshan> im looking at how ill hook up the power wires for the servos
[19:57:57] <zeeshan> these ************ put the screw terminals sideways
[19:57:57] <zeeshan> LOL
[19:58:03] <zeeshan> so you cant get a screw driver in.
[19:58:16] <alex____w> are they plugable like the ones on mesa boards?
[19:58:23] <zeeshan> no!
[19:58:24] <zeeshan> soldered on!
[19:58:38] <furrywolf> remove drivers? :P
[19:58:39] <alex____w> mesa gets a lot of credit in my book for using pluggable ones
[19:58:49] <zeeshan> alex____w: its a good design!
[19:58:50] <alex____w> also, mesa finally has an online store!
[19:58:55] <alex____w> you don't need to call in to order boards
[19:58:58] <malcom2073> Something to be said for not having to lean over a box to turn a screwdriver deep inside
[19:59:15] <alex____w> thinking about getting a 5i25/7i76 for my taig
[19:59:19] <alex____w> though it's overkill
[19:59:22] <zeeshan> this mounting arrangement was showin the manual too
[19:59:23] <zeeshan> sighn.
[20:00:02] <alex____w> are those dc servos?
[20:00:06] <zeeshan> yes
[20:00:07] <alex____w> the drives seem so small :)
[20:00:12] <alex____w> but i've never worked with dc servos
[20:00:17] <zeeshan> itr can be used for both brusheless and brush
[20:00:25] <zeeshan> they have support for hall commutation too
[20:00:26] <bobo_> Marketing tells engineers what to do or whom they will get to do it their way
[20:00:47] <zeeshan> i think the fix for this is putting standoffs
[20:00:53] <zeeshan> to stagger the servo drive heights..
[20:01:43] <alex____w> or make a quick release for the servo
[20:01:44] <alex____w> drive
[20:02:58] <furrywolf> ouch. even ebay chinese cartridges are $25/each.
[20:03:25] <zeeshan> quick release how?
[20:04:18] <furrywolf> pulling the drives to wire doesn't seem THAT bad. consider this is probably the first time it's been done since the machine was built, and might well not be rewired again for just as long.
[20:04:40] <alex____w> i can't see the base of the drive. if there is a flange you could make a mount that slides out of the way to release them
[20:05:04] <zeeshan> furrywolf: its quite annoying to do that
[20:05:05] <zeeshan> lol
[20:05:18] <alex____w> you are using very few i/os on your 7i77 :)
[20:05:19] <zeeshan> especially if i reverse the leads or something
[20:05:26] <zeeshan> haha yea
[20:05:33] <zeeshan> but its not all hooekd up. do you see the box connectors with colors?
[20:05:43] <zeeshan> the limit switch and other i/o still has to be hooked up
[20:05:55] <alex____w> where is the 5i25?
[20:05:55] <zeeshan> i didn't wir eit yet because it depends on the pinout on the actual connector connecting to it
[20:06:17] <zeeshan> https://www.flickr.com/photos/128539016@N05/15881152719/in/photostream/
[20:06:23] <zeeshan> hiding in the left corner
[20:06:44] <alex____w> linuxcnc doesn't support the ethernet attached mesa boards yet, right?
[20:06:58] <zeeshan> not sure
[20:07:05] <zeeshan> is your comp mobo in the control cabinet too?
[20:07:33] <_methods> alex____w: i think it's working on some
[20:07:37] <_methods> check with PCW
[20:07:53] <bobo_> what computer Bd. are you using ? zeeshan
[20:08:09] <furrywolf> alex: I was told it was working but not released yet.
[20:08:16] <zeeshan> some random one i had
[20:08:17] <zeeshan> lol
[20:08:21] <zeeshan> athlon xp 3200+
[20:08:24] <alex____w> furrywolf: that's good news
[20:08:30] <zeeshan> asus k7v400 ?
[20:08:50] <alex____w> i have an acer nettop atom-based thing that could be good with my taig, but no pci slots
[20:09:38] <zeeshan> id just pick up an ancient computer lol
[20:11:13] <furrywolf> I'd like a 7i76e, but can't afford it.
[20:11:59] <bobo_> I thought Mesa had a Bd. that could work with pciE slot?
[20:12:13] <alex____w> zeeshan: i currently use an ancient computer
[20:12:24] <alex____w> but these are good low latency machines, and it's idle
[20:14:02] <_methods> http://amfeltec.com/products/flexible-minipci-express-to-pci-express-adapter/
[20:14:10] <_methods> that might be interesting to use on a laptop
[20:14:15] <Tom_itx> bobo_, 6i25
[20:14:38] <_methods> i've never tried one before though
[20:14:42] <Connor> alex_ 7i76E is a Ethernet version of the 7i76 + Ethernet interface
[20:14:44] <_methods> might have to get one to test out
[20:16:27] <Connor> 7i92 is basically a 5i25 only Ethernet.
[20:18:16] <alex____w> looking them up now
[20:18:19] <bobo_> Tom__itx thank's
[20:18:35] <ripple> I bought a 5I20, worked flawlessly, 5I25 flawless, 7i33, flawless, 7I90hd flawless, I have a project and the 7i92 will be perfect for my needs. Is it as flawless as the rest?
[20:19:16] <furrywolf> bah. craigslist person says two people emailed before me.
[20:20:20] <Tom_itx> offer them more
[20:20:26] <furrywolf> it's $0...
[20:20:32] <malcom2073> So offer $10
[20:20:41] <furrywolf> that's not nice.
[20:20:59] <malcom2073> If they'd go for it, it means they'd do it to you too
[20:21:17] <malcom2073> First come first served isn't a commandmant
[20:21:17] <furrywolf> if he already told someone else it's theirs, it wouldn't be nice to try taking it from them.
[20:21:18] <malcom2073> :P
[20:21:22] <alex____w> hmm, 7i92 isn't in the store
[20:21:32] <ripple> its on the price list
[20:21:35] <ripple> but not the store
[20:21:44] <ripple> $90 I think
[20:21:51] <alex____w> yeah, found it there
[20:21:56] <Connor> alex_w check with PCW pcw_home
[20:22:40] <alex____w> i think he was helping me with my limit switch questions
[20:23:00] <Connor> he's the one who designs and makes mesa cards.
[20:23:04] <alex____w> yup
[20:23:09] <alex____w> oh cool
[20:23:13] <Tom_itx> ethernet isn't quite ready i think
[20:23:16] <ripple> Anyone else have a ethernet system in place? do you like it?
[20:23:23] <Tom_itx> that's why it isn't on the store site
[20:23:27] <Connor> Tom_itx: I think it is with 2.7
[20:23:38] <Connor> you can check in the linuxcnc-devel channel
[20:23:41] <Tom_itx> well last i knew he was still testing it
[20:23:53] <ripple> I wouldnt be so sure tom, the 7i90 wasnt ready and it worked great =D
[20:24:08] <Tom_itx> hope so, i'm gettin one next week
[20:24:25] <ripple> haha yea i know what you mean, its why im here, Im planning on ordering tomorrow I assume it will be great
[20:24:48] <Tom_itx> it's replacing another board on mine
[20:25:00] <ripple> what board are you using now?
[20:25:12] <Tom_itx> was using the 7i43
[20:25:21] <Tom_itx> the 7i90 is more io and cheaper
[20:25:33] <ripple> i <3 the 7I90
[20:25:43] <furrywolf> I wish I could find a used 7i76e...
[20:25:49] <ripple> worked perfect when i did it with the 7i33
[20:25:56] <alex____w> i'd just be using the 7i92/7i76 to replace the parallel communication with my g540
[20:26:05] <Tom_itx> gonna use a 7i47 on mine
[20:26:09] <alex____w> bit banging the parallel port is so crude
[20:26:16] <Tom_itx> i've got one here i fixed but i'll keep it as a spare
[20:26:17] <alex____w> but it's been working fine for years
[20:26:26] <ripple> EXACTLY
[20:26:47] <Tom_itx> alex____w, just harder to find machines with parport
[20:27:17] <alex____w> well, it's also crude and gives you really limited inputs
[20:28:12] <furrywolf> I'm setting my machine up with a parallel port breakout board, but in order to use it, I'll have to wire every switch together... home, limits, e-stop,...
[20:28:24] <alex____w> yeah, that sucks
[20:28:39] <alex____w> i have two probes and had to pair up two homing switches to let it still work
[20:28:50] <furrywolf> plus my drives are noticably smoother at 10 microsteps, but I have to keep them at 5 microsteps to hit a good speed.
[20:28:54] <ripple> what kind of wiring system are you using?
[20:28:55] <alex____w> so x/z share an input, and then at least x/y can home at the same time
[20:29:04] <furrywolf> wiring... system?
[20:29:17] <ripple> yeah do connector styles
[20:29:24] <alex____w> the taig also has very fine leadscrews, so with a 10x microstepping on the g540 i end up with 80,000 steps per inch, which limits my feed rates
[20:29:25] <ripple> or just wire direct?
[20:29:32] <furrywolf> of the five inputs, I need three for the spindle encoder...
[20:29:56] <furrywolf> both my breakout board and the drives have screw terminals, so I'm just running wire between them. shielded 16/4.
[20:30:02] <alex____w> ripple: on my taig/g540 i'm just using 2-conductor 1/8" "mono" connectors for inputs
[20:30:05] <furrywolf> (yes, 16/ is overkill, but it's what I have handy!)
[20:30:17] <ripple> ahh, yes :) quick connect everything i can
[20:30:23] <alex____w> the steppers are shielded 4pair wires
[20:30:37] <ripple> I pre wired extra encoders and just plug them in and out with cat5 connectors
[20:30:38] <furrywolf> for connecting to the machine, anderson powerpoles for the motors, molex for the switches. (cheap and I have them)
[20:30:42] <alex____w> with db9 on one end and the pacsci connectors on the other
[20:30:55] <ripple> same with the switch they are all on small cat5 plugs
[20:31:00] <furrywolf> the powerpoles aren't waterproof, but they're 30A... I don't want to use cannon connectors at 10A!
[20:31:01] <alex____w> on the hurco we're using all of the existing honda connectors
[20:31:16] <alex____w> it's designed to be all plug and play, we can move a few connectors and go back to ultimax
[20:31:20] <alex____w> that's been very helpful for debugging
[20:31:21] <ripple> I hate replacing an item and retracing the entire cable
[20:32:11] <alex____w> most of our honda<->mesa wiring is cat5, which probably isn't ideal, but it's pretty good and was what we had handy
[20:32:22] <alex____w> needed twisted pair for all of the balanced circuits
[20:32:24] <ripple> thats why i chose it
[20:32:53] <ripple> universal and plenty of it
[20:33:09] <alex____w> a friend gave us some nice encoder wire that is 3 twisted pairs plus two layers of shield
[20:33:16] <ripple> oooh
[20:33:21] <alex____w> so we're using that for our encoders
[20:33:48] <zeeshan> by balanced
[20:33:51] <zeeshan> you mean differential pairs?
[20:33:53] <alex____w> yes
[20:34:04] <alex____w> sorry, i have an audio background, where it is called balanced
[20:34:08] <zeeshan> yea from my understanding of it, its not a big deal
[20:34:08] <furrywolf> have any 4 conductor shielded flexible cable I could use for my steppers? chainflex/etc... something that can flop around as the machine moves and not fail.
[20:34:10] <zeeshan> at low frequency
[20:34:24] <ripple> i have some connectors that you often see on servo's the push and turn military types, not sure what to use them on but i have tons
[20:34:47] <zeeshan> gimmee
[20:34:52] <ripple> hahah
[20:34:57] <ripple> they were taken from an airplane
[20:34:58] <zeeshan> ampehol?
[20:35:01] <zeeshan> mil spec
[20:35:03] <ripple> yep
[20:35:07] <zeeshan> those are expensive
[20:35:10] <ripple> yeah
[20:35:13] <zeeshan> ive been looking for a 100 pin one for the car
[20:35:19] <ripple> but they are not aphenol
[20:35:22] <evilren> their milspecconnects aregood but i wont ever give them mmoney again
[20:35:24] <ripple> they are similar
[20:35:24] <alex____w> yeah, i find those at used marine parts stores
[20:35:31] <evilren> they knocked off a neutrik connector and fucked it up
[20:35:42] <ripple> 100 pin... lemme think
[20:35:43] <alex____w> they are mostly switchcraft connex
[20:36:33] <alex____w> almost all marine electronics use them and have 2-10 conductor wires with these nice waterproof/coolant proof connectors
[20:36:40] <ripple> nope no 100 pins
[20:36:43] <alex____w> usually for a couple of dollars for dozens of feet of cable
[20:36:47] <ripple> maybe a couple 45's
[20:36:49] <furrywolf> for some reason, power wheelchairs often use neutrik connectors... they work for 5A chargers. they do not work very long with 10A chargers. heh.
[20:36:53] <ripple> 40-60 ish
[20:36:59] <ripple> hahaha
[20:37:54] <ripple> I need to thank a couple people in here, i have 6 axis robot i bought for $100
[20:38:00] <furrywolf> you got something affordable from a marine store? around here, it's "add another zero" when you shop at the fishing boat supply place, and "add two more zeros" at the yacht place...
[20:38:15] <alex____w> used marine parts stores
[20:38:16] <ripple> and it works now, due to their quick documentation supplying skills
[20:38:39] <alex____w> no one feels like figuring out which wire with waterproof connectors goes with which marine part
[20:38:46] <furrywolf> no used anything stores here, unless you want old clothes and dirty dishes.
[20:38:50] <alex____w> so cables with unknown connectors are cheap
[20:39:10] <alex____w> sadly the closest one just closed (lost it's lease...condos going in)
[20:39:19] <alex____w> but there are 3 or 4 others that i visit when out sailing
[20:40:05] <furrywolf> no surplus stores, no used goods other than thrift stores... and not even good thrift stores... the kind with nothing but useless housewares no one else wants, and clothes.
[20:40:15] <alex____w> where do you live?
[20:40:16] <furrywolf> some of the stores have a policy they won't even take anything with a power cord!
[20:40:27] <furrywolf> far northern california coast, usa.
[20:40:30] <alex____w> i'm in seattle, there is a lot of marine stuff around here
[20:40:47] <furrywolf> I'm in humboldt. there's a lot of hydroponics stores around here.
[20:40:55] <_methods> hahah
[20:40:59] <_methods> i used to live in ferndale
[20:41:06] <alex____w> we have a lot of those too
[20:41:17] <furrywolf> methods: it's only gotten worse. :P
[20:41:19] <alex____w> can't really tell if there are more or less since legalization happened
[20:41:30] <_methods> i remember when i was a kid them bringin in dumptruck loads of weed to the fairgrounds
[20:41:33] <_methods> and burning it all
[20:41:34] <furrywolf> methods: you still in the area?
[20:41:41] <_methods> nah i'm in south carolina now
[20:41:52] <furrywolf> heh, got sick of the potheads?
[20:42:02] <_methods> nah i need sunshine
[20:42:23] <furrywolf> I like sun as long as it's not over 65F out at the same time.
[20:42:35] <furrywolf> I dislike rain, but everywhere I've thought of with less rain has exessive heat.
[20:43:03] <_methods> definitely lots of weed there
[20:43:52] <furrywolf> I'm more of a cold weather person... right now my living room is 54F.
[20:44:12] <furrywolf> got down to 39F in here last night, according to my little weather station. :P
[20:44:34] <alex____w> i was out sailing in about 39F today and was happy to come home to my house at 62F
[20:44:39] <furrywolf> bbl, time to head back to work
[20:44:45] <alex____w> though there was a nice breeze today
[20:48:10] <bobo_> methods why S.carolina vers elswhere ?
[20:49:08] <_methods> i love it here
[20:49:11] <_methods> the spanish moss
[20:49:14] <_methods> the weather
[20:49:17] <_methods> the women
[20:49:24] <_methods> hard to beat it
[20:50:36] <_methods> i'm from the pacific northwest but damn that rain
[20:52:12] <ripple> I paid $100 for this on craigslist. They said it would never work.
[20:52:34] <ripple> what.duckdns.org/2.mp4
[20:53:02] <bobo_> is it getting filled up with old fart's who want to change everything to what they left ?
[20:53:03] <ripple> sorry volume warning
[20:54:07] <ripple> there is a 1.mp4 also
[20:54:13] <malcom2073> ripple: Nice!!
[20:55:10] <ripple> I already built a linux FLOPPY EMULATOR for it via 25pin->serial I/O
[20:56:20] <malcom2073> That's a hell of a find
[20:56:49] <ripple> they were cool guys, it was a big shop and they just wanted to get it out of the way
[20:57:24] <_methods> score
[20:57:38] <ripple> all i did was fix a few bad wires, remove a few mice and learn 6 axis motoman early 90's era robots
[20:57:41] <XXCoder1> its probablt more than 100 in scrap meta
[20:57:45] <XXCoder1> very nice find.
[20:57:56] <ripple> but it took about 4 days to get it to run a program
[20:58:08] <XXCoder1> now, next make cnc out of it heh
[20:58:12] <ripple> i had no idea what i was doing with that silly pendant in my hand, all the buttons worn off
[20:58:21] <ripple> yeah but the software is really so good
[20:58:24] <ripple> hahaha no lies
[20:58:44] <ripple> its all built around those kinematics
[20:58:57] <ripple> and it knows all its limits already
[20:59:07] <ripple> unless something breaks i want to just let it work for me
[20:59:17] <_methods> chappie
[20:59:24] <ripple> however i did have plans on building a retro fit kit with mesa cards for loner arms
[20:59:29] <_methods> put a flamethrower on that damn thing
[20:59:41] <ripple> there are so many ready to go arms and so few good control boxes it seems
[20:59:43] <_methods> or a paintball gun at least
[20:59:48] <ripple> yes paintballl gun
[20:59:56] <ripple> and tracking system
[21:00:01] <_methods> mk19
[21:00:06] <ripple> lets not talk of this
[21:00:08] <ripple> hahahah
[21:00:58] <ripple> i dont want to be on a list
[21:01:21] <_methods> you have a robot arm......you're on a list
[21:01:29] <ripple> true
[21:01:51] <XXCoder1> the damn cool list
[21:01:56] <_methods> hahah
[21:01:57] <_methods> right
[21:02:30] <XXCoder1> and I cant even find 8020s that don't make me drive hours lol
[21:02:52] <ripple> oh coder
[21:02:59] <ripple> they are 45 mins from my house
[21:04:30] <XXCoder1> nice
[21:04:42] <XXCoder1> bit of question for anyone whos good on cars
[21:04:58] <XXCoder1> websites say I need to find fcc id for my van remote
[21:05:07] <XXCoder1> but I cant find it anywhere and I dont have orginial remote
[21:05:37] <ripple> make model?
[21:05:46] <XXCoder1> nissan quest 1996
[21:05:50] <malcom2073> XXCoder1: it'd be on the origonal remote. The reciever box in your dash MAY have one on it? But because it's not a transmitter it may not.
[21:06:19] <XXCoder1> hmm lemme look how reciver box looks like
[21:10:48] <XXCoder1> malcom2073: wow no pictures no nothing on where it is
[21:11:03] <XXCoder1> or even how it looks like. I guess it never breaks lol
[21:12:00] <malcom2073> huh heh
[21:14:57] <s1dev> ripple: you could probably find an old electronically fired paintball gun for <$40 off ebay (spyder imagine comes to mind)
[21:15:09] <s1dev> >:D
[21:15:18] <XXCoder1> malcom2073: I found repair manual
[21:15:25] <XXCoder1> it still dont state fcc id lol
[21:15:31] <malcom2073> That may list it
[21:15:32] <malcom2073> ahh damn
[21:15:44] <XXCoder1> so far anyway its not text so I cant use find
[21:15:59] <ripple> =D sldev i want to soo bad, but alll these other projects
[21:16:03] <s1dev> http://www.ebay.com/itm/Kingman-Spyder-Imagine-Paintball-Gun-E-Trigger-system-semi-full-auto-burst-/251771551199?pt=LH_DefaultDomain_0&hash=item3a9ec0fddf
[21:16:05] <s1dev> fancy one too
[21:16:17] <s1dev> that's a pretty pricey barrel for such a cheap gun >:D
[21:16:39] <ripple> we need to all come together and build some machines to sell to the public so we can fly around to eachother and build fun projects
[21:16:56] * s1dev really wants to see a robotic paintball gun controlled by CV
[21:16:57] <ripple> and still have spending money left over =D
[21:17:10] <malcom2073> ripple: just have your new arm throw you to other peoples houses
[21:17:15] <XXCoder1> malcom2073: according to this site http://www.remotesremotes.com/1996-Nissan-Quest-Keyless-Remote-Key-Fob-Clicker-s/5165.htm it's GQ43VT8T
[21:17:37] <malcom2073> XXCoder1: Nice, but is that right? heh
[21:17:40] <ripple> XXCoder1 saves the day again 2 points for xx
[21:17:52] <XXCoder1> mal thats the issue
[21:18:18] <ripple> tyrone down the street prolly can hook you up ;)
[21:18:33] <ripple> universal clicker
[21:18:54] <ripple> unlocks all the cars in a 3 block radius
[21:19:08] <XXCoder1> lol
[21:19:16] <XXCoder1> that'd be perfect theft tool
[21:19:50] <ripple> well, it's settled you will have to build your own secure system now
[21:21:47] <ripple> you should just write an app for your phone and bluetooth it
[21:22:02] <ripple> with car starter
[21:22:14] <ripple> and james bond theme music
[21:22:24] <alex____w> i was just cleaning up the office and threw out the keyless entry for my car
[21:22:27] <alex____w> i like having to use a key
[21:22:48] <alex____w> and i never had the remotes for it, but they are only about $15
[21:22:49] <ripple> like starting a fire by rubbing two sticks together
[21:22:54] <ripple> kind of nostalgic
[21:23:03] <alex____w> and waterproof
[21:23:25] <malcom2073> I like having a remote, the remote start makes it even nicer heh
[21:26:30] <XXCoder1> a cart small enough so you can shop while you shop :P http://www.aliexpress.com/store/product/Hot-Selling-New-Mini-Shopping-Handcart-Small-Supermarket-Practical-Pushcart-Trolley-Phone-Holder-Kids-Toys-Free/1226120_1813869211.html
[21:26:49] <malcom2073> I heard you liked to shop, so I put a shop in your shop so you can shop while you shop
[21:26:59] <ripple> nice
[21:27:27] <The_Ball> malcom2073, until you drop?
[21:27:44] <XXCoder1> yep then you drop while you drop
[21:28:42] <ripple> are multiple drop... dribbles?
[21:28:50] <The_Ball> haha https://www.youtube.com/watch?v=bhChYJzw4FM
[21:29:08] <ripple> sorry im bad at basketball and english
[21:30:10] <XXCoder1> heh ball
[21:30:19] <XXCoder1> I bet scanners can make small cnc
[21:31:48] <ripple> I thought about using a scanner for parts checking
[21:31:54] <ripple> anyone doing such a project?
[21:32:04] <ripple> like an optical comparitor
[21:33:16] <zeeshan> speaking of optical comps
[21:33:22] <zeeshan> i saw one for dirt cheap
[21:33:26] <ripple> where
[21:33:31] <zeeshan> kijiji
[21:33:34] <zeeshan> 800 bux!
[21:33:34] <zeeshan> lol
[21:33:38] <ripple> whic prov?
[21:33:38] <zeeshan> those things are like 10k new
[21:33:40] <zeeshan> ontario
[21:33:54] <ripple> where you from? I just got back from oshawa
[21:34:04] <zeeshan> hamilton
[21:34:07] <zeeshan> how about you
[21:34:11] <ripple> Indiana
[21:34:15] <ripple> but my g/f is canuck
[21:34:24] <ripple> =D
[21:34:26] <zeeshan> thats a long distance for a gf :D
[21:34:53] <ripple> yeah...
[21:34:57] <ripple> ;(
[21:36:44] <ripple> luckily we can both get away for reasonably long periods of time and see eachother
[21:48:55] <zeeshan> alex____w: still there?
[21:49:08] <zeeshan> what type of cable runs between the spindle drive and spindle motor
[21:49:12] <zeeshan> is it some special shielded cable?
[22:30:59] <_methods> https://www.youtube.com/watch?v=4m7YjAuDMY0
[23:53:31] <ripple> PCW im ready to get the 7i92, everthing is working as expected? :) (7i90hd treated me wonderfully btw thanks!)