#linuxcnc | Logs for 2015-10-14

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[00:10:22] <MacGalempsy> thanks yall. yall are out of me will. except for archivist, which may get it all
[01:01:26] <rootB> Hey linuxCNC, I got a shapeoko 2 machine that i want to modify so it works properly now and finally set it down to a permanent place
[01:01:36] <rootB> could you guys help me out later on this month to buy the things i need to finally do it?
[01:04:44] <rootB> so i hope that's a yes..
[01:28:27] <MattyMatt> what is improper with the way it is?
[01:31:19] <MattyMatt> also for a permanent place, have you considered hinging it to a wall? that's a poular way to stow a flatbed router
[01:31:20] <Contract_Pilot> that 12V - 21A kicks ass just needs larger filter caps for the spike of a ham
[01:32:03] <Contract_Pilot> Going to pull the rubycon and check the ESR
[01:32:14] <MattyMatt> wha? you using a cnc psu for a radio, other way round, or what?
[01:33:09] <MattyMatt> and do you have a licence to run that CB radio at 1000W?
[01:33:26] <Contract_Pilot> 13.8V for ham radio kicked it to 14v held steady 14V http://www.stevenrhine.com/wp-content/uploads/2015/10/12V-21A-PSU-14V-Stable-1-1024x576.jpg
[01:33:35] <Contract_Pilot> KG7AMV i am a Ham!
[01:33:54] <MattyMatt> Italians used to do that. 1000W burners. we could hear them in England
[01:34:44] <Contract_Pilot> Hook to radio sucks 19amps on radio boot browns out.
[01:35:06] <Contract_Pilot> will scope it next week for 9.00 no bitching!
[01:35:34] <Contract_Pilot> Rubycon caps in the supply alone worth 9.00 if they are real.
[01:36:18] <Contract_Pilot> Gun show prep in the morning!
[01:37:53] <Contract_Pilot> Thursday setup FRi, Sat, Sun show monday recover! Tuesday wire sherline machines hope mesa has 7I76's
[01:45:43] <archivist> rootB, create a web page of images of the machine so people can see what state it is in
[01:49:14] <Contract_Pilot> stevenrhine.com
[01:50:07] <Contract_Pilot> need my 12X up running mach3 but threads are shit!
[01:50:34] <Contract_Pilot> Need to take advantage one encoder.
[01:58:40] <MattyMatt> mesa works with mach3?
[01:59:47] <archivist> you scrap mach to get threading
[02:02:17] <MattyMatt> fair enough :) so, mesa cards haven't reached the stage where they run an Axis clone in a browser
[02:02:41] <MattyMatt> and the whole of the linuxcnc onboard. I can see that happening
[02:04:48] <MattyMatt> cloud cnc. remote users can jog your machine, and google carves ads in your workpiece :p
[02:14:55] <archivist> obtrusive ads are making some sites less usable
[02:16:05] <MattyMatt> for sure. ever since they discovered swf
[02:18:28] <MattyMatt> banner exchange rings, all is forgiven
[02:18:35] <MattyMatt> advertise your friends
[02:24:17] <Deejay> moin
[02:38:20] <Contract_Pilot> Yea, mach sucks waiting on mesa.
[02:38:47] <Contract_Pilot> been 5 weeks now suposed to have had them instock last week.
[02:45:15] <Praesmeodymium> Contract_Pilot: gun show at the expo center?
[02:45:25] <Praesmeodymium> btw we are neighbors I live in portland
[02:49:19] <Contract_Pilot> Cool...
[02:49:29] <Contract_Pilot> Yep Expo this weeknd..
[02:49:55] <Contract_Pilot> I am in the couve!
[02:52:44] <Contract_Pilot> Praesmeodymium> cool you are local.
[02:57:15] <MrSunshine> hmm how the heck is the scrolls in chucks made? =)
[02:57:22] <Praesmeodymium> yeah, its nice to meet locals who dont run lokl
[02:57:56] <MrSunshine> high infeed on the cross slide to make like a thread?
[02:58:01] <Praesmeodymium> your not actually in portland so it might be portland problem, but everytime I mention being local to someone in #reprap they leave... or it could be me lol
[03:00:13] <MattyMatt> it's that hick internet you have there up in the wilderness
[03:02:28] <MattyMatt> http://i.imgur.com/wkBldLN.png MrSunshine like this
[03:02:48] <MattyMatt> on a 3d printer :)
[03:03:31] <Contract_Pilot> must be a know it all from the local colective of dumb shits
[03:03:35] <archivist> MrSunshine, easy with linuxcnc
[03:03:44] <MattyMatt> when I had my chuck apart to measure for that, I thought the scroll seemed forged
[03:04:09] <archivist> the thread will be machined
[03:04:10] <MattyMatt> but machined then hardened was also likely
[03:04:11] <Praesmeodymium> I dont like people enough to gather in a collective lol
[03:04:45] <MrSunshine> just wondering how they make them =)
[03:05:09] <Contract_Pilot> yea, no proffit? ask the CEO of the collective how much they make they run!
[03:05:21] <Contract_Pilot> and Avoid!
[03:06:30] <Contract_Pilot> Geeks need to band ang start a true community school.
[03:06:35] <archivist> in the old days probably a cam auto or a lathe with horizontal geared traverse, these days one can gear axes, or use a rotary and the right gcode
[03:09:14] <MattyMatt> the teeth under the jaws I'm doing freehand in blender, and I'll probably end up doing them freehand with a file IRL if I get round to it
[03:09:32] <archivist> something like set middle or rotary as 0,0 g1 y200 a3600 would mill a helical path with ten turns in 200 mm (if metric mill)
[03:10:29] <MattyMatt> spiral. my TD teacher was hot on that distinction
[03:11:08] <Contract_Pilot> Was thinkiking of starting a comminuty collage type thine on go fund me.
[03:11:18] <archivist> the gcode for the jaws, just remember the pitch and the 1 3rd of a pitch offset between jaws
[03:11:19] <MrSunshine> is an update to linuxcnc 2.7 worth it? =)
[03:11:26] <MrSunshine> im afraid i break something :P
[03:11:37] <MattyMatt> cone shaped spiral/helix didn't exist at O level
[03:11:41] <archivist> there are some upgrade changes
[03:12:04] <Contract_Pilot> Tearchers actually work the trade and teach on the side then hire form the student pool.
[03:12:26] <archivist> MrSunshine, I tend to use a new hard disk so I can swap back
[03:12:46] <MrSunshine> archivist: not a bad idea .. tho i have no new harddisks to put in that computer :/
[03:12:53] <MattyMatt> that was likely. his tales were all about ship architecture, and there's a shipyard down the road
[03:13:03] <Praesmeodymium> well in the portland area what we have is the distilled essence of hackerspace, some guy with too many toys tries to mentize his equipment with the help of a few friends, they rent a space then do this super cliquesh thing that appears inclusionary but isnt
[03:13:08] <archivist> new secondhand!
[03:15:27] <Contract_Pilot> Right, need somthing strucdtured!
[03:15:51] <Contract_Pilot> Known people in the trade!
[03:16:32] <MattyMatt> http://www.bbc.co.uk/news/uk-england-merseyside-34504399 shipyard is resurgent. I wonder if they'll take on a 49yo apprentice
[03:16:42] <archivist> knowing people in the right trades even better
[03:18:26] <MattyMatt> smooth nick change daxro :)
[03:19:17] <daxro> I'm getting a 403 forbidden on http://www.linuxcnc.org/ I guess you know ...
[03:19:35] <MattyMatt> yeah here too
[03:20:04] <daxro> those pesky hackers
[03:20:57] <archivist> the hoster sets forbidden of a site if they think its been got at, known about yes
[03:21:47] <MattyMatt> http://linuxcnc.org/docs/html/gcode.html it's not the whole server, just the front page
[03:22:01] <MattyMatt> that works and refreshes
[03:22:11] <archivist> its the forum section as fas as I know
[03:22:17] <archivist> far
[03:22:45] <Contract_Pilot> got a warning that a link i was linking to was 404...
[03:25:15] <Contract_Pilot> Just noticed i have a nick in one of my fluke leads??? WTF how did that happen
[03:36:24] <daxro> I fluking annoyed if mine got nicked
[03:58:25] <trentster> Does anyone know of a place that shares linuxcnc code snippets for routines like center finding etc?
[04:00:07] <archivist> the wiki
[04:00:28] <archivist> although probably offline at the moment
[04:01:19] <trentster> archivist: thanks
[04:01:23] <archivist> also it depends how you want to find a enter line
[04:02:07] <archivist> eg a feature, an edge, a hole
[04:02:15] <trentster> I plan to machine a "Triple Edge Finder" I then need to figure out the maths for its functions
[04:02:43] <trentster> similar to this guy but he is using Mach3 https://www.youtube.com/watch?v=dhmfnea0vVA
[04:03:47] <archivist> http://www.themakersguide.com/home/products/triple-edge-finder-2
[04:06:06] <archivist> hehe silly price
[04:06:29] <trentster> yeah - its a bit expensive - but a fun project to make
[04:13:06] <daxro> What is the best way to get an Xbox Controller to act as a CNC pendant for linuxcnc ?
[04:15:46] <MattyMatt> wiki has an example, using PSX controller but same principle. it's a USB HID
[04:16:28] <MattyMatt> logitech's PSX controller iirc, but real ones also work with the usb adaptor
[04:18:01] <trentster> Guys is there a difference between water cooled chinese spindles vs more expensive "square" air cooled spindles in terms of RPM ranges?
[04:18:08] <daxro> Cool will check the wiki later when it's back up
[04:18:35] <trentster> I keep seeing air cooled listed as 0-24000rpm and water as 8000-24000 ?
[04:18:42] <MattyMatt> http://wiki.linuxcnc.org/cgi-bin/wiki.pl wiki appears to be worky
[04:19:00] <trentster> shouldent the logic be the same, cooling is cooling regardless of rpm?
[04:19:02] <daxro> huh cheers
[04:19:43] <archivist> trentster, often high speed motors have little torque at low speed
[04:19:56] <MattyMatt> http://wiki.linuxcnc.org/cgi-bin/wiki.pl?Using_A_Joypad_To_Move_Your_CNC_Machine
[04:20:06] <archivist> so useless below n rpm
[04:21:58] <MattyMatt> water cooling works better at low rpm, I'm sure. fan speed is stuck at spindle speed
[04:22:37] <trentster> hmmm interesting
[04:23:15] <trentster> So is a spindle on something like a Haas mill totally different technology to High Speed spindles you would use on a router?
[04:23:30] <trentster> They have to machine metals at very low rpm with lots of torque right?
[04:24:11] <MattyMatt> loads of kW, and maybe auto gearbox
[04:24:40] <__rob2> my Tormach PCNC 1100 is now on a boat!
[04:24:55] <__rob2> can't wait
[04:25:31] <trentster> yeah that 1100 is a beautiful machine - green with envy ;-)
[04:26:08] <__rob2> as long as they dont have to throw it off the side in stormy seas
[04:26:11] <MattyMatt> that's why I haven't bough a chinese spindle and vfd, because I recon I'll still need step pulleys, so I'll do that bit first
[04:26:23] <__rob2> according to my shipping insurance this is a possibility i'm covered for
[04:27:49] <MattyMatt> If I want a spindle stuck at 30krpm, I've got a wood router
[04:28:31] <trentster> rob_h: that happening is extremely unlikely - you have more chance of having a fatal slipping incident in the shower than that particular container falling off a ship :P
[04:28:51] <__rob2> yea, not falling though, pushed
[04:29:06] <trentster> MattyMatt: do you need 30k would 24k not suffice for 99% of stuff?
[04:29:09] <__rob2> apparently its rare, but a solution to stop the whole ship sinking
[04:29:18] <__rob2> they will throw stuff off the side in really rough seas
[04:29:33] <MattyMatt> trenster no real option, it's a wood router. speed control only dims the power
[04:30:00] <trentster> rob_h: yes - but extremely rare to the point of not worth even thinking about
[04:32:11] <MattyMatt> I'd bet a container is safer at sea per mile than on the road
[04:32:28] <MattyMatt> even tho the miles are 10% bigger :)
[04:33:08] * MattyMatt crashes __rob2's tormach into Mars
[04:36:38] <trentster> MattyMatt: I fortunately have not used a wood router before - the air cooled spindle I currently have is loud enough - I think the noise would drive me batshit crazy!
[04:44:22] <ikcalB> hi @all. Is it just me having trouble to access the linuxcnc repos? I get a 403 forbidden
[04:52:54] <archivist> not just you
[04:56:17] <ikcalB> archivist: do you have any information, on whether this is a temporary problem?
[04:56:46] <archivist> should be temporary till someone can get to fix it
[04:56:55] <archivist> get time
[05:02:39] <XXCoder> heys
[05:08:04] <XXCoder> twins!
[05:23:56] <jthornton> morning
[05:24:57] <XXCoder> hey
[05:25:07] <malcom2073> Morning
[05:25:42] <XXCoder> malcom2073: got refund yet?
[05:27:22] <MrSunshine> Forbidden
[05:27:23] <MrSunshine> You don't have permission to access / on this server.
[05:27:24] <MrSunshine> linuxcnc.org
[05:27:30] <MrSunshine> waddap
[05:27:36] <jthornton> broken
[05:27:36] <XXCoder> dunno
[05:27:47] <malcom2073> XXCoder: Yep
[05:28:02] <jthornton> something broke and dreamhost shut it down
[05:29:34] <XXCoder> got question
[05:29:41] <XXCoder> I want to move domain out of godaddy
[05:29:51] <XXCoder> and good email service fairly cheap?
[05:30:15] <archivist> your current isp?
[05:30:17] <deargonaut> hello there! Does anyone know how long linuxcnc.org will be down?
[05:30:30] <archivist> till its fixed
[05:30:31] <jthornton> no
[05:30:32] <deargonaut> at least I am getting a 403-error
[05:30:39] <XXCoder> archivist: not sure how it applies, but comcast
[05:30:40] <deargonaut> lol... sure thing.
[05:31:22] <archivist> XXCoder, you should have an email from your isp you use (I use gmail free)
[05:31:31] <XXCoder> archivist: not what I want
[05:31:38] <deargonaut> Is there any other way to download 2.7 now?
[05:31:39] <XXCoder> I want my own domain email addresses
[05:32:05] <archivist> I have been too lazy to set up an email server on my domain
[05:32:36] <SpeedEvil> Ask Hilary for tips.
[05:32:51] <archivist> but have set one up one one companies server
[05:33:11] <XXCoder> ok
[05:33:39] <XXCoder> what about good and cheap domain
[05:33:46] <XXCoder> godaddy I'm tired of that company
[05:34:05] <jthornton> I bailed from godaddy real quick
[05:34:26] <archivist> I just get cheap names and self host the dns, not tied that way
[05:34:28] <jthornton> webhost4life has been good for the last 5 years I've been using them
[05:34:55] <malcom2073> I use godaddy for my domain, but not for anything else, I self-host on a VPS
[05:35:27] <archivist> self hosting means full control and no space issues
[05:35:38] <XXCoder> indeed
[05:35:50] <XXCoder> you has static ip?
[05:35:57] <archivist> yes
[05:36:20] <XXCoder> nice. comcast dont provide that
[05:36:36] <archivist> usually an extra
[05:36:41] <malcom2073> They do if you pay heh
[05:36:51] <archivist> ipv4 run out though
[05:37:18] <malcom2073> "run out", but they still got a huge block unalllocated that they own
[05:37:41] <archivist> which "they"
[05:38:00] <malcom2073> comcast and any other company that purchased them in bulk
[05:38:13] <archivist> some are selling stuff they grabbed to other isps
[05:39:25] <archivist> distant dreams http://www.ebay.co.uk/itm/Co-ordinate-Measuring-Machine-/231719315411
[05:42:57] <XXCoder> jthornton: this one? https://www.webhost4life.com/
[05:43:29] <jthornton> yea
[05:43:39] <jthornton> I use the linux hosting
[05:43:41] <XXCoder> hmm no email alone hosting
[05:44:36] <MattyMatt> less distant dream, this looks worth it just to strip the DRO http://www.ebay.co.uk/itm/ISOMA-110-PROFILE-PROJECTOR/121762427134
[05:45:55] <archivist> must make a webcam mount for the cmm
[05:49:03] <archivist> XXCoder, you can use your dns to point your emails at other providers email service, probably gmail too
[05:49:39] <XXCoder> https://www.1and1.com/email-address#email-tariffs
[05:49:40] <XXCoder> hmm
[05:49:43] <XXCoder> not bad
[05:49:58] <trentster> archivist: do you recall offhand the way to wire a vfd to that cheapie breakout board you reccomended?
[05:50:48] <archivist> trentster, I added an isolated psu for the vfd out
[05:51:10] <MattyMatt> chinese DTI I got is Mitutogo brand. that amused me
[05:51:24] <trentster> archivist why?
[05:51:54] <archivist> to make sure the motor gnd is separate from PC gnd
[05:52:25] <jdh> you can do most chinese vfd's via modbus
[05:52:36] <archivist> even if the vfd may provide isolation on its analogue in
[05:55:07] <trentster> hmmm I am lost now I currently have a 400w spindle with its own 48V PSU and its own internal vfd - I assumed the wires that went to that vfd would simply go to chinese external VFD - hmm I am a bit confused - so I now need to buy something extra?
[05:56:13] <trentster> This is what I currently have: http://www.ebay.com/itm/CNC-400W-Brushless-Spindle-Motor-ER11-Mach3-PWM-speed-controller-Mount-PS-/121480243239
[05:58:01] <archivist> image in a few secs
[05:59:50] <XXCoder> anyone here use fastmail?
[06:02:08] <archivist> trentster, http://www.collection.archivist.info/searchv13.php?searchstr=cnc+bob
[06:02:28] <archivist> that is a small dc to dc supply
[06:03:21] <archivist> I dont know what your vfd input needs
[06:03:46] <archivist> I am using the 0-10v mode for the vfd
[06:04:25] <archivist> must get around to boxing it up
[06:04:32] <jdh> I doubt the chinese vfd does PWM speed control.
[06:04:52] <jdh> you can get a pwm->analog converter (or make one) or use modbus
[06:04:57] <jthornton> getting closer with the dxf to g code converter :) dang pesky arc offsets
[06:05:49] <jdh> http://cnc4pc.com/product_info.php/c41-pwm-variable-speed-control-board-p-303 I have one of those on my mill.
[06:06:38] <XXCoder> jthornton: 2d dxf?
[06:06:43] <jthornton> yea
[06:06:47] <XXCoder> cool
[06:07:12] <archivist> trentster, and the "official" docs http://www.collection.archivist.info/archive/mirror/cnc/bob/
[06:07:18] <jdh> how do you pick up cut depths? text on the layer?
[06:07:43] <jthornton> http://pastebin.com/CKEHUTN8
[06:08:56] <jthornton> jdh, me?
[06:09:02] <jdh> you
[06:09:14] <jthornton> just working on the path conversion now
[06:09:51] <jdh> have you seen cradek's 'realize'?
[06:10:39] <jthornton> I think so a while back
[06:13:14] <trentster> archivist: thanks looking now
[06:23:49] <keyson> Hello all. Is the web down for maintenance?
[06:26:03] <XXCoder> broken
[06:30:52] <keyson> XXCoder Ok. Do you know any mirror for the livecd?
[06:31:02] <XXCoder> not at this time unfortunately
[06:32:22] <keyson> XXCoder Thanks. Just have to wait then...
[06:32:27] <XXCoder> yeah
[06:49:21] <jthornton> http://gnipsel.com/files/dxf2g/
[07:00:19] <trentster> do I add basic antifreeze to spindle water coolant? and I assume its correct to use distilled water rather than tap water?
[07:01:54] <archivist> I think yes to some additives, to stop it rotting
[07:02:13] <XXCoder> yummy rotten coolant
[07:02:14] <jthornton> if it is aluminum make sure you use the correct one
[07:02:40] <trentster> jthornton: this is to cool the spindle not to cool the cutting bit
[07:02:58] <Sync> justr use the green coolant stuff
[07:03:00] <jthornton> right, some antifreeze is not good for aluminum
[07:03:26] <trentster> aah ok
[07:03:40] <trentster> Sync: does the green coolant stuff have a brand or a name?
[07:04:23] <archivist> soylent green
[07:05:10] <jthornton> lol
[07:05:14] <jthornton> mmmm
[07:05:17] <jthornton> yummy
[07:05:37] <XXCoder> I ran out of soylent today :(
[07:05:41] <XXCoder> not soylent green lol
[07:05:57] <XXCoder> in book its not people
[07:13:14] <Sync> I don't really get why people rage about it
[07:15:21] <Sync> trentster: glysantin g48 or g30
[07:15:56] <trentster> Sync: thanks googling it now to see if its available in AU
[07:16:36] <Sync> just any old coolant additive will do after all
[07:29:58] <XXCoder> g1 x1000. y1000. f1000;
[07:30:10] <malcom2073> zoom!
[07:30:40] <trentster> So this is why you gotta be careful buying stuff from China - I placed these solar cells in the sun for the first time today. All was fine for the 1st few minutes a lovely 7.6V output per panel - then this started happening. https://monosnap.com/file/XD0hF2Ax54lPlhdcgdt78L1SCu3WbQ.png
[07:31:04] <XXCoder> I tested 1000 mm/s on my machine, when it jammed it actually moved kitchen table 3 inches lol (leg deform not move whole thing)
[07:31:06] <trentster> Reply from banggood product support after I sent an email - guess what?
[07:31:22] <trentster> Sorry - that product is out of warranty now ahaha
[07:31:27] <malcom2073> trentster: Not rated for sun exposure? :P
[07:31:45] <XXCoder> not rated for sun looks like
[07:31:55] <trentster> malcom2073: yes they work just fine if not exposed to light - its a new kind of panel :P
[07:32:02] <XXCoder> maybe its cover sheets is not UV resistant, considering it should work in sun...
[07:32:07] <malcom2073> heh
[07:32:43] <trentster> the batch is obviously faulty maybe they did not mix the resin correctly or something
[07:33:05] <XXCoder> sucks
[07:33:26] <XXCoder> trentster: dont buy any brake led lights from chinese either
[07:33:30] <trentster> bah they were cheap - like $8 each - but yeah its still bloody annoying
[07:33:32] <XXCoder> I made 4 different orders
[07:33:37] <XXCoder> all dont work right
[07:33:58] <XXCoder> I finally decided to fuck it and buy local leds. $30
[07:34:29] <trentster> THese are all mono cell panels and 90% of all solar cells come from China anyway - you would think they would have gotten at least this right by now
[07:34:50] <XXCoder> it may be rejected batch "walked out of warehouse"
[07:34:58] <archivist> you got the rejects
[07:36:50] <trentster> The weird thing is the site shows 1060 of them sold with a perfect 10 review 5 out of 5 rating - so either 1) I am incredibly unlucky 2) they are lying or 3) keeping the panels in the closet for 6 months somehow altered the chemistry of them to make them not like the sun.
[07:36:56] <trentster> You decide :P
[07:37:13] <XXCoder> nah not planning to decide anytime soon lol
[07:38:05] <SpeedEvil> trentster: 4) everyone reviewing them simply tried them, and they worked, and died after 10 minutes
[07:38:50] <archivist> most idiots give feedback before they test them properly
[07:40:01] <trentster> yeah but most people come back and leave negative feedback when things go wrong
[07:40:17] <XXCoder> trentster: archivist can see trhe future
[07:40:27] <XXCoder> my proof: his answer to your comment.
[07:40:30] <trentster> Also its unlikely that people tested the panel and after 1 minute ran back inside the house to quickly review them
[07:43:15] <MrTrick_> ahoy! Any advice appreciated - I've got small end mills and some 10 degree (or so) pointy engraving mills
[07:43:22] <MrTrick_> er, engraving bits
[07:43:38] <MrTrick_> I want to cut out a letter 'M' in black chancery font, quite small.
[07:43:57] <Wolf_> you need to make bits spin
[07:43:59] <MrTrick_> (see the 'M' http://img.font.downloadatoz.com/download/imgs/b/l/a/Black%20Chancery-upper.png )
[07:44:30] <Tom_itx> high rpm, ~.010-.025 deep
[07:44:46] <MrTrick_> Ideally I want to cut out a pocket and do paint fill, but if using the end mill I can't reach the pointy parts of the letters. if using the engraving bit I can't cut out the wider parts so well (i don't think)
[07:45:24] <MrTrick_> the letter will be about 10mm wide
[07:45:50] <MrTrick_> Tom_itx: Wolf_: noted. Any more specific advice about bit choice and designing appropriate toolpaths?
[07:46:01] <MrTrick_> Material is silver, mill is a chinese 4030
[07:46:08] <MrTrick_> s/mill/router
[07:46:59] <fenn> MrTrick_: http://www.scorchworks.com/Fengrave/fengrave.html
[07:48:37] <archivist> silver! hand engrave with a graver :)
[07:49:46] <MrTrick_> archivist: have no penmanship skills. Do have a cnc router.
[07:51:14] <MrTrick_> fenn: I have a dxf file all ready to go - more asking about whether to eg "pocket" with end mill then "pocket" with v cutter (*that's* what those things are called), or something else.
[07:51:31] <fenn> "The V-Bit Diameter can be set to diameters less than the actual cutting bit diameter to limit the depth of v-carving."
[07:51:41] <archivist> use the right font its just gets done
[07:53:46] <MrTrick_> and in Cambam?
[07:54:26] <trentster> MrTrick_: cambam does not do engraving well imho - better to use one of the vectric products
[07:55:40] <MrTrick_> trentster: do you mean like rasterising? I've got the vector file all ready to go. I want to cut a nice even pocket through the area of the letter.
[07:56:07] <MrTrick_> If I had heaps of time to spare and the chemicals handy, I could potentially do this with a deep etch.
[07:58:25] <MrTrick_> hmm, cambam has a "V-cutter" profile, not sure how to calculate diameter for something that looks like http://thumbs2.ebaystatic.com/d/l225/m/mOtqplIhMqMEiieDQ7vTlfw.jpg
[07:59:13] <trentster> cambam needs very thin slim line font to try and do anything lettering related it will only follow the toolpath directly over the line - this limits font possibilities and the use of stuff like nice vbit carved fonts etc.
[07:59:48] <trentster> You could in theory get away with it with the right font and bit combination in cambam - but it was always yucky for me.
[08:00:24] <trentster> The stuff in Vectric always looks gorgeous in the preview and machines identically
[08:02:29] <trentster> Plus doing stuff like this in Cambam is impossible : https://pbs.twimg.com/media/CQ78xe7VAAADVM_.jpg:large
[08:03:01] <trentster> https://pbs.twimg.com/media/CQ8ZUYlUcAA0d1k.jpg:large
[08:04:00] <trentster> https://pbs.twimg.com/media/CQtJ-9jUAAAZJO0.jpg:large
[08:04:17] <trentster> MrTrick_: thats all done in Vectric and pretty effortless to do
[08:04:21] <MrTrick_> trentster: looks pretty.
[08:04:43] <MrTrick_> NOT really anything like what I want to do though.
[08:06:07] <trentster> yes I know but I am trying to drive home the outcome of carving or engraving when the toolpath can vary the depth of cut
[08:06:36] <MrTrick_> true.
[08:06:46] <MrTrick_> how much is vectric?
[08:06:47] <trentster> maybe silver is different and you just want a diamond bit or something but you still want to be able to vary the width of the fonts which cambam wont do
[08:07:23] <trentster> They have a lot of products - have a look on the website I think they start at $150 all the way up to $2k
[08:07:43] <trentster> I think they have trialsas well
[08:07:48] <trentster> *trials
[08:07:54] <trentster> So you can try it out
[08:08:06] <archivist> I should finish modding truetype tracer, started adding vcarve to it
[08:08:49] <MrTrick_> anyone know how silver compares to alu, hardness wise?
[08:09:14] <MrTrick_> (sterling vs "a bit of scrap, I have no idea" grade)
[08:09:16] <trentster> Do you get softer metal than aluminium for cnc work?
[08:10:31] <MrTrick_> I made the mistake last time of using the same feedrates for my test piece (some spare PCB) as my real material (solid brass). *SNAP*
[08:10:50] <MrTrick_> my test piece is a piece of alu sheet cut to roughly the same shape as the real thing (silver pendant)
[08:11:00] <trentster> MrTrick_: http://lmgtfy.com/?q=metal+hardness+scales
[08:11:26] <archivist> brass engraving is interesting
[08:11:49] <MrTrick_> trentster: is hardness scale always proportional to feed rate?
[08:12:08] <archivist> no
[08:13:51] <MrTrick_> (and yes okay, I asked the wrong question, rather than asking about feed rate or ease of cutting)
[08:14:23] <archivist> work hardening materials being awkward too
[08:15:45] <trentster> Someone should really make a good open source online feeds and speeds calculator
[08:16:14] <trentster> I should have added "intuitive" as well to the above
[08:16:19] <jthornton> aww you said good and open source
[08:16:31] <trentster> haha
[08:16:34] <jthornton> now you upped the anti
[08:17:20] <trentster> Yeah its the "intuitive" part that is gonna be the toughest challenge
[08:18:08] <jthornton> there is a simple calculator in this http://gnipsel.com/files/mill-g-code/
[08:20:12] <trentster> Interesting - looking at MrTrick_ googled results I see Tungsten carbide is just under Diamond in the hardness scale - wow I knew it was hard but not that hard!
[08:21:40] <trentster> jthornton: thanks I have bookmarked it - but I am on a mac and would have to fire up a windows VM to use it I assume
[08:22:04] <jthornton> it's python :)
[08:22:19] <jthornton> never tried it in windoZe
[08:22:35] <trentster> aah cool then it would work on a mac
[08:22:37] <archivist> write it in php and run on your site :)
[08:23:11] <jthornton> I could do that if I had time to spare
[08:23:34] <archivist> here have ten minutes
[08:23:46] <jthornton> thanks
[08:24:02] <jthornton> are you sure you can spare it?
[08:24:04] <trentster> you can have 15 from me - you now got 25 minutes - go for it :P
[08:24:50] <trentster> nice site btw - bookmarking it - lots of nuggets there to peruse
[08:26:34] <jthornton> thanks
[08:27:39] <trentster> jthornton: I'd love to see a screenshot of what your personal LinuxCNC panel looks like :-)
[08:28:22] <MrSunshine> hmm i wonder how much a toothed belt would flex over 1.5 meters
[08:28:33] <jthornton> which one?
[08:28:53] <SpeedEvil> there are eleven billion sorts of belt.
[08:28:59] <MrSunshine> hehe =)
[08:29:12] <SpeedEvil> From actual rubber, to carbon fibre reinforced ones that are almost as stiff as steel
[08:29:44] <SpeedEvil> http://www.gatescarbondrive.com/products/belts
[08:30:25] <trentster> jthornton: was that question for me?
[08:30:45] <MrSunshine> http://www.ebay.com/itm/T5-Timing-Belt-5mm-pitch-open-Loop-20mm-Wide-DIY-CNC-Milling-Plasma-Robotic-/121782181070?hash=item1c5ac89cce but its a 16mm version i have
[08:30:57] <MrSunshine> steel reinforced
[08:31:50] <jthornton> yes, which panel?
[08:32:32] <trentster> The one you use personally on your own go-to machine. I am sure its been heavily customized - you seem to be a master judging by your tutorials
[08:33:38] <jthornton> well I have a plasma, a mill and a lathe running LinuxCNC
[08:34:20] <trentster> Mill I guess
[08:34:29] <jthornton> the mill uses touchy with ngcgui and gremlin (back plot)
[08:35:00] <jthornton> the lathe and plasma use Axis with PyVCP panels
[08:35:09] <jthornton> the lathe also has ngcgui tab
[08:35:10] <cradek> I should check out ngcgui in touchy on my lathe(s)
[08:35:21] <cradek> I hear it's good for doing lathey stuff
[08:35:38] <jthornton> I do 90% of the ops on my lathe with ngcgui
[08:35:43] <cradek> wow
[08:36:11] <jthornton> http://gnipsel.com/shop/hardinge/hardinge.xhtml
[08:36:13] <cradek> can you realistically run it on just a touchscreen?
[08:36:57] <jthornton> yes, dewey made a large button pad I think to input numbers
[08:37:15] <jthornton> mine is using Axis so I have kb and mouse
[08:37:22] <trentster> jthornton: what the heck - show us all of em mate
[08:37:55] * jthornton is down in the beer cave atm
[08:39:02] <trentster> heh - no worries - another time perhaps
[08:40:29] <MrTrick_> muahaha, this looks like success.
[08:41:03] * MrTrick_ abuses the toolpath features slightly
[09:05:34] <trentster> Ok my next dumb question - why is it I see people saying for e.g. a cast aluminium spindle mount is much stronger than a machined spindle mount?
[09:05:58] <trentster> Is there something special about the casting process that makes it better than extruded aluminium?
[09:06:56] <MrTrick_> I thought cast alu was quite weak, actually.
[09:12:48] <SpeedEvil> Are they perhaps meaning 'forged' ?
[09:13:23] <ssi> mawn
[09:18:41] <archivist> trentster, strength is by design and material
[09:19:06] <SpeedEvil> You can make really strong rigid things in PLA.
[09:19:20] <SpeedEvil> it just needs more of it than steel.
[09:19:34] <archivist> you can make weak stuff in carbide
[09:19:35] <SpeedEvil> (not often, that much more of it)
[09:19:52] <SpeedEvil> Shape and cross section in general matters more than material.
[09:20:09] <SpeedEvil> Unless you have point-loads somewhere.
[09:22:14] <MrTrick_> spaghetti bridge!
[09:22:40] <MrTrick_> Well that was a terrible idea, in hindsight. Wax as a protective coating has a fatal flaw (paging icarus, paging icarus!
[09:22:55] <SpeedEvil> metals can be awesome for the seperate reason that tehy can be very homogenous and less vulnerable to buckling.
[09:27:57] <MrTrick_> bah, waste of a good pendant too.
[09:28:41] <MrTrick_> archivist: Tomorrow I'm going down to the shoe repair and engraving place, and see if they'll engrave it for me deep enough to paint fill.
[09:29:27] <archivist> MrTrick_, on clock dials we used a hard wax to fill
[09:29:40] <MrTrick_> (typically on a router one does inside work, then finishes by cutting out the piece. When the piece is already teeny tiny and delicate it's very hard to hold down, as I found.
[09:30:05] <MrTrick_> archivist: I've seen that from-scratch clock build that uses the proper hard wax, it looks very cool.
[09:30:14] <archivist> I make tiny parts on a stick
[09:30:46] <MrTrick_> will either use that or enamel paint flooded in carefully with an insulin syringe
[09:31:20] <archivist> spaghetti bridge https://www.youtube.com/watch?v=pZNTzkAR1Ho
[09:33:02] <MrTrick_> archivist: the clock materials are crazy, something like "use a clock wax, and then a clock polish, and then some clock silvering, and then some clock...........
[09:33:12] <MrTrick_> hyper-specialising. ^_^
[09:33:39] <archivist> its normal hard sealing wax
[09:34:19] <archivist> I usually let ex boss do the wax and silvering
[09:37:20] <MrTrick_> gnight all
[09:40:16] <CaptHindsight> archivist: wake me when it's made of actual pasta
[09:42:12] <archivist> CaptHindsight, did you break a tooth on that one?
[09:42:18] <CaptHindsight> https://www.youtube.com/watch?v=VRsKhVO-Utg Testing Shear Strength of Spaghetti
[09:42:38] <CaptHindsight> http://ocw.mit.edu/courses/civil-and-environmental-engineering/1-105-solid-mechanics-laboratory-fall-2003/labs/pasta_03.pdf
[09:42:54] <CaptHindsight> looks like actual research has begun!
[09:42:58] <ssi> :D
[09:44:37] <CaptHindsight> Ini's as structural members 101
[09:45:16] <archivist> the tape invalidates that test
[09:45:41] <ssi> I think the tape gives enough that it doesn't represent a constraint along the axis of the member
[09:45:45] <CaptHindsight> https://www.youtube.com/watch?v=fhdx2HTH7to NYIT Structures Pasta Bridge Build Off
[09:46:08] <CaptHindsight> I probably would have used reinforced lasagna noodles
[09:46:10] <ssi> anyone else think it's ironic that the strength of pasta class is taught by a guy named Bucciarelli?
[09:46:46] <archivist> that test was mostly tension
[09:49:43] <CaptHindsight> "Comparisons of the Dampening Factors of Engineered Pasta Granite Machine Bases" ok I made that one up
[09:50:05] <ssi> pasta wouldn't make a good aggregate
[09:50:11] <ssi> insufficient density :)
[09:50:39] <ssi> CaptHindsight: I bought the silly car
[09:50:52] <ssi> https://scontent-atl3-1.xx.fbcdn.net/hphotos-xlt1/v/t1.0-9/12074547_10100795131587432_103389633417420732_n.jpg?oh=592db51ae3f253920e369e57d895ede7&oe=568AD797
[09:50:52] <archivist> silly boy
[09:51:05] <jthornton> very primitive dxf to G code converter http://gnipsel.com/files/dxf2g/
[09:51:06] <ssi> https://scontent-atl3-1.xx.fbcdn.net/hphotos-xfp1/v/t1.0-9/12065614_10100795131612382_4108694190510408695_n.jpg?oh=2a80ebe9e207a4e05339717d008d47b9&oe=56CEE716
[09:51:21] <jthornton> ssi, take a look see
[09:51:29] <jthornton> when you have a chance
[09:51:38] <malcom2073> ssi: Oooo stickers
[09:51:42] <ssi> jthornton: you oughta consider putting it on github
[09:51:50] <ssi> jthornton: go has some fancy support for public github repos
[09:51:58] <ssi> malcom2073: hah yeah they gotta go
[09:52:01] <jthornton> btw only the executable will work as you have to pass the file name
[09:52:05] <malcom2073> You'll have no power then!
[09:52:11] <ssi> I'll lose some horsepower if I scrape the stickers off
[09:52:19] <ssi> but I'll gain it all back by fixing the rod knock :)
[09:52:33] <archivist> that is the stripes, never take them off
[09:52:46] <malcom2073> Heh, why am I not shocked that it has rod knock with stickers like that :P
[09:52:50] <ssi> malcom2073: :)
[09:53:01] <jthornton> I messed with github once but got tired of trying to figure it out
[09:53:13] * jthornton wanders out
[09:53:18] <ssi> archivist: I always wanted to try putting a red stripe on one side and a blue stripe on the other and seeing if it helps me turn
[09:53:29] <archivist> hehe
[09:53:39] <CaptHindsight> i shit you not "Mechanical and rheological properties of fresh egg pasta as affected by shell egg production factors" http://onlinelibrary.wiley.com/doi/10.1111/j.1365-2621.2012.03128.x/abstract
[09:53:46] <ssi> hah
[09:54:05] <malcom2073> SFW correlary of Rule 34
[09:56:07] <CaptHindsight> ssi: how is the body?
[09:56:13] <ssi> mostly pretty good
[09:56:24] <ssi> there's one spot of rust, on the hatch right at the back lip
[09:56:28] <ssi> obviously weatherstripping failure
[09:56:39] <ssi> you can only see it by opening it and looking under the weatherstrip
[09:56:48] <ssi> there's a couple small dents on the right rocker, down as it curves under
[09:56:50] <ssi> probably jack damage
[09:57:01] <ssi> the frame rails have evidence of jack damage but no evidence of being tweaked from wrecking it
[09:57:18] <ssi> mostly the body fitment is pretty good, but the left door doesn't quite fit right, I think it's sagging hinge pins
[09:57:25] <ssi> the front bumper stays are missing
[09:57:41] <ssi> one piece of trim behind the right t-top is missing, and the chrome on the trim isn't in awesome shape
[09:57:55] <ssi> all the flex panels like the bumper covers and spoiler have paint issues, which is pretty common
[09:57:58] <ssi> body paint is good
[09:58:16] <ssi> interior is mostly good, but the driver seat and door panel have bad spots
[10:02:27] <ssi> shit i need the interior out of this one
[10:02:28] <ssi> http://atlanta.craigslist.org/atl/cto/5254296814.html
[10:09:40] <probotix> linuxcnc.org seems to be down
[10:10:23] <Sync> only the front page
[10:13:28] <probotix> http://www.linuxcnc.org/index.php/english/forum/49-basic-configuration/17021-emc2-auto-maximized-at-startup
[10:21:33] <SEL> why i get a 403 error at linuxcnc.org ?
[10:33:47] <SEL> it probably some weird joke of the destiny ?
[10:35:56] <probotix> so any idea how to get axis to start in maximized mode?
[10:37:08] <Tom_itx> SEL, you're not a member
[10:37:38] <Tom_itx> or you didn't pay your interweb fees
[10:40:31] <malcom2073> SEL: The website is broken atm
[10:41:01] <probotix> the wiki works
[10:42:40] <Jymmm> Tom_itx: Where's my damn light man!?
[10:45:40] <SEL> no problem ,I have already installed 2.7 :-)
[10:47:59] <CaptHindsight> maybe dreamhost isn't so dreamy after all
[10:48:07] <Jymmm> heh
[10:50:44] <CaptHindsight> what's been working well as a host for everyone here?
[10:50:51] <malcom2073> VPS ftw
[10:51:10] <malcom2073> I got tired of dealing with web hosts, couldn't find a decent one
[10:51:25] * SpeedEvil imagines VPS with virtual parport controlling CNC.
[10:51:57] <CaptHindsight> malcom2073: VPS with direct connection to internet? :)
[10:53:01] <malcom2073> CaptHindsight: Yeah
[10:54:40] <CaptHindsight> cloud to cloud network
[10:54:58] <Jymmm> IF it's VPS, it aint "direct", it's VIRTUAL =)
[10:55:13] <malcom2073> Virtually direct :P
[10:55:16] <CaptHindsight> with illusion of privacy server
[10:55:21] <Jymmm> lol
[10:56:04] <Jymmm> ther eis no privacy in the interwebz
[10:56:33] <malcom2073> Virtually Private, Virtually Direct, They should include Virtual in the name ;)
[10:56:58] <Jymmm> malcom2073: What a great idea.... virtually
[10:57:21] <CaptHindsight> as long as the bill and payments are also virtual
[10:57:27] <malcom2073> The alternative is shell out a couple hundred a month for a dedicated box
[10:58:11] <Jymmm> couple hundred?! Shit, for that I can colo
[10:58:54] <Jymmm> Mmmmm... Bonded 10GigE pipes!
[10:58:57] <malcom2073> yummy
[10:59:10] <CaptHindsight> our tubes are cleaned daily
[11:00:21] <Jymmm> But, if you need a host check out http://BlueHost.com/
[11:00:32] <archivist> get a fixed ip, host on a sensible speed broadband
[11:00:41] <ssi> I have a place it could be hosted
[11:00:47] <ssi> if you're talking about linuxcnc.org
[11:01:21] <Jymmm> ssi: And 700MB ISO downloads?
[11:01:26] <ssi> sure
[11:01:30] <ssi> up to 2500G/mo
[11:01:32] <malcom2073> Jymmm: Get a CDN for that
[11:01:39] <Jymmm> cdn?
[11:01:41] <malcom2073> 2.5TB a month isn't much
[11:01:53] <malcom2073> Content Delivery Network
[11:01:57] <ssi> no, it's not a ton
[11:02:06] <ssi> but it's a lot more than most cheap hosting packages give you
[11:02:14] <Jymmm> malcom2073: cdn for what?
[11:02:14] <ssi> and I have 16tb space on that box
[11:02:20] <malcom2073> [11:36:53] <ssi> if you're talking about linuxcnc.org
[11:02:21] <malcom2073> [11:37:27] <Jymmm> ssi: And 700MB ISO downloads?
[11:02:22] <ssi> well actually it's 11.5tb formatted, raid6
[11:02:51] <CaptHindsight> https://www.liquidweb.com/data-centers/colocation.html 5TB/mo for $150
[11:02:54] <Roguish> the iso
[11:02:57] <Roguish> the iso
[11:03:00] <Jymmm> malcom2073: unlimited bw/storage http://www.bluehost.com/shared
[11:03:11] <ssi> is $150 cheap? :P
[11:03:17] <Roguish> the iso's could be distributed by torrent...
[11:03:20] <malcom2073> Jymmm: Yep, shared.
[11:03:25] <Jymmm> malcom2073: so?
[11:03:28] <malcom2073> Try it :)
[11:03:36] <malcom2073> You're not gonna listen to anything I say anyway
[11:03:41] <Jymmm> malcom2073: I have for the last 6 years
[11:03:48] <malcom2073> Glad it's working for you
[11:04:36] <Jymmm> We have about 13 domains in them, no (unscheduled) issues.
[11:05:04] <Jymmm> have shell access too
[11:07:35] <CaptHindsight> the problem I've had with shared severs is when someone gets turned into a spambot
[11:07:44] <CaptHindsight> bandwidth goes to hell
[11:10:32] <archivist> keeping on top of updates is a bind though
[11:14:16] <CaptHindsight> distributed redundant virtual vapor with better than cloud reliability
[11:15:03] * archivist puts up a virtual vapour barrier
[11:15:33] <Jymmm> CaptHindsight: it's all smoke and mirrors... virtually
[11:16:14] <CaptHindsight> illusionhost
[11:18:35] <CaptHindsight> one way keyless data security, once your data is encrypted it completely safe since there is no decryption possible, since it's one way and completely safe
[11:19:23] <Deejay> re
[11:20:16] <Jymmm> CaptHindsight: Nah, easily decrypted using ROT26
[11:20:38] <ssi> CaptHindsight: while you're at it make it an excellent compression algorithm
[11:20:43] <ssi> one way compression and encryption
[11:20:48] <ssi> reduces your data to 99% its original size
[11:22:15] <ssi> here's a good strategy: count the number of ones and the number of zeroes in the file, and store the counts as a pair of ints
[11:22:18] <CaptHindsight> VBS
[11:23:09] <CaptHindsight> hmm the average is ~1:1
[11:23:31] <CaptHindsight> if we just approximate or round that should be good enough
[11:23:46] <ssi> yeah but if you keep the actual counts then you can reconstruct the file size
[11:24:41] <CaptHindsight> heh file size is just A x 1:1
[11:25:07] <CaptHindsight> too much space
[11:47:59] <Tom_itx> Jymmm, tomorrow
[11:48:31] <Tom_itx> post can't get in a hurry or they couldn't justify express
[11:48:53] <Jymmm> heh
[11:49:19] <Tom_itx> it shipped from Ok and i'm in Ks
[11:49:26] <Tom_itx> ~150 mi away
[11:49:41] <Tom_itx> not like it's coming from china..
[11:49:42] <Jymmm> Tom_itx: I'm just glad that you did NOT order the Fenix light(s), and got the other one instead I linked you to.
[11:49:59] <Tom_itx> what other one?
[11:50:12] <Tom_itx> uh huh
[11:50:37] <Jymmm> The one I had linked to for $24
[11:50:55] <Tom_itx> i didn't see that one
[11:57:11] <Tom_itx> hah
[11:57:12] <Tom_itx> <Jymmm> Santa Loves me... http://www.fenixlight.com/viewproduct.asp?id=144
[11:58:35] <Tom_itx> http://www.youtube.com/watch?v=WuoPz7hm7Co
[11:58:45] <Tom_itx> that was back when YOU were lookins
[11:58:46] <Tom_itx> g
[12:09:48] <Jymmm> Tom_itx: When you are storing the light, partially unscrew the battery cover until the light won't turn on. This will prevent accidental turn on (in a pack) and no parasitic drain on the battery.
[12:36:22] <membiblio> Does anyone have a code sample that relates to taking output from a python script and displaying a string somewhere in the axis gui or a pyvcp panel?
[12:37:50] <MrSunshine> hmm, a system to fold away wheels on a machine .. what would that be called ?
[12:38:05] <membiblio> Landing Gear?
[12:38:06] <MrSunshine> say i have 4 coasterwheels, then when i use the machine i want to set it down on rubber feet insted
[12:38:45] <membiblio> The rubber feet will have to lift while the wheels retract i/e landing gear (c) 2015 me :)
[12:39:12] <archivist> feet on screwed rod
[12:39:52] <MrSunshine> i want it lever actuated .. just press a lever and the machine goes to wheel mode =)
[12:40:08] <MrSunshine> so i can move it around .. my shop is to small for stationary machines
[12:40:48] <archivist> you can get braked wheels
[12:41:11] <membiblio> That would mean the wheels retract or come down and take the weight off the rubber feet - to move the machine - right?
[12:41:26] <MrSunshine> yes
[12:41:38] <MrSunshine> archivist: then i have to run around the machine and put the break in on all of them =)
[12:42:13] <CaptHindsight> air bearing floor, or hovercraft machine bases
[12:42:18] <MrSunshine> ahh yes!
[12:42:25] <archivist> what a hardship!
[12:42:28] <membiblio> is there anything like <number> but will accept a <string>?
[12:43:32] <archivist> MrSunshine, common to only put the brakes on one side/front
[12:44:01] <MrSunshine> archivist: yeah but feels like the machine wont stand as good then
[12:44:13] <MrSunshine> dont realy want it to move around when i work on it (table saw)
[12:44:22] <archivist> good enough probably
[12:45:05] <MrSunshine> i could use a scissorjack i guess :P
[12:45:12] <MrSunshine> to push something with the wheels down =)
[12:46:05] <archivist> these dont move much if anything with 400kg on http://www.collection.archivist.info/archive/DJCPD/PD/2013/2013_04_18_glass_trolley/IMG_1536.JPG
[12:46:08] <MrSunshine> but like i said .. might be good enough with 2 brake wheels =)
[12:46:46] <MrSunshine> archivist: but then add some saw dust on the floor etc ...
[12:46:49] <archivist> we had two brakes on the early trolleys but only one on the later
[12:46:51] <MrSunshine> and small contact area on the wheels
[12:47:14] <archivist> weight of the machine makes a serious difference
[12:47:41] <archivist> add a storage shelf under the machine too
[12:47:43] <MrSunshine> i move it around by hand .. lifting it
[12:47:45] <MrSunshine> :P
[12:49:18] <MrSunshine> http://www.grampasworkshop.net/sawtbl.jpg that is not a bad idea tho ... cause it spews out dust downwards ..
[12:49:34] <MrSunshine> might be a wood chucking project =)
[12:49:48] <ssi> how much wood could a wood chuck chuck?
[12:50:10] <MrSunshine> bout 3 quarts
[12:50:29] <zeeshan> LOL
[12:50:42] <zeeshan> speaking of weight
[12:50:45] <ssi> zeeee
[12:50:52] <zeeshan> i used the lathe as an anchor to pull my rx7 up the driveway
[12:50:58] <ssi> lol
[12:51:03] <zeeshan> thing did not budge
[12:51:12] <archivist> and onto the scrap truck ?
[12:51:23] * archivist ducks
[12:51:27] <zeeshan> i could not move the lathe on skates yesterday
[12:51:35] <zeeshan> i was using a 5 ft 1" round pipe
[12:51:36] <zeeshan> and i bend it
[12:51:38] <zeeshan> *bent it
[12:51:43] <zeessi> I saw a neat tool at northern the other day
[12:51:44] <zeeshan> i moved a little, but it rolled right back
[12:51:51] <zeessi> it's a heavy duty lever with a hook on the end and a couple bearings
[12:51:57] <zeeshan> will need to come up with a different moving plan
[12:52:11] <zeessi> http://www.northerntool.com/shop/tools/product_200646684_200646684
[12:52:13] <zeessi> bam
[12:52:24] <archivist> use scaffold pipe
[12:52:31] <zeessi> this one's a little different than the other one I saw
[12:52:37] <zeeshan> archivist: itll crush
[12:52:39] <zeessi> http://www.northerntool.com/shop/tools/product_200326481_200326481 there it is
[12:52:49] <zeeshan> i dunno why i wrote solid pipe
[12:52:52] <zeeshan> it was a solid bar that bent
[12:52:53] <zeeshan> not pipe..
[12:53:05] <zeeshan> just hr 1018
[12:53:15] <ssi> 1018 is too ductile
[12:53:30] <ssi> I bent a piece of 1018 1" cr trying to get my hangar door back on the track
[12:53:33] <zeeshan> 4340?
[12:53:35] <archivist> there are a few grades of scaffold pipe, never bent one yet
[12:55:33] <zeeshan> i broke my toe jack too
[12:55:36] <zeeshan> bad design :P
[12:55:43] <zeeshan> it was just 1/2" plate welded together
[12:58:26] <archivist> got to spread the load
[12:59:06] <aventtini6> hello guys
[12:59:08] <aventtini6> :)
[13:00:17] <archivist> you might need http://www.liftingequipmentstore.com/steerman-load-moving-skate-systems-204-c.asp
[13:00:43] <archivist> I found skates harder to use
[13:00:49] <ssi> much rather have this
[13:00:49] <ssi> https://en.wikipedia.org/wiki/Boeing-Stearman_Model_75
[13:01:59] <aventtini6> i have seen on ebay
[13:02:06] <aventtini6> they was like 350
[13:02:15] <aventtini6> there was 2 off them
[13:03:13] <zeeshan> that looks expensive archivist
[13:03:33] <archivist> easy to slip off them too
[13:03:48] <JT-Shop> ssi, what does git hub do that hosting on my site doesn't?
[13:04:09] <ssi> JT-Shop: go install github.org/gnipsel/dxf2gcode
[13:04:17] <ssi> will fetch, build, and install to $GOPATH/bin
[13:04:23] <JT-Shop> ok
[13:04:34] <jdh> zeessi: they call those 'johnson bars' here
[13:04:57] <ssi> jdh: johnson bar is what we call a manual, lever operated system for landing gear or flaps in airplanes
[13:05:23] <jdh> yeah, on trains also
[13:05:28] <ssi> but yeah looks like northern agrees
[13:05:28] <ssi> http://www.northerntool.com/shop/tools/NTESearch?N=0&Ntk=All&Ntt=johnson+bar&Nty=1&D=johnson+bar&Ntx=mode+matchallpartial&Dx=mode+matchallpartial&cmnosearch=PPC&utm_source=google_PPC&utm_medium=HandTools&utm_campaign=Generic&utm_content=johnson%20bar&mkwid=sOcpTQsns&pcrid=74406695111&mtype=e&devicetype=c&storeId=6970&langId=-1&type=search&gclid=CPri0JDBwsgCFYE8gQodUEINcA
[13:05:54] <jdh> we use them for moving machines in place
[13:07:34] <JT-Shop> do I have to setup github first?
[13:07:43] <ssi> you'll need a github account
[13:08:06] <ssi> also when you start putting golang stuff on github, that sorta defines your package names
[13:08:26] <ssi> so your global namespace for any code that you develop will be github.com/gnipsel or whatever your github user is
[13:08:45] <JT-Shop> ok
[13:08:56] <ssi> so for instance, here's a public, open source library I created
[13:08:56] <ssi> https://github.com/ianmcmahon/encoding_ssh
[13:09:12] <ssi> so you can import "github.com/ianmcmahon/encoding_ssh" in your code and go will fetch it for you when it fetches dependencies
[13:14:52] <JT-Shop> I might wait on that when it gets more complicated
[13:18:08] <zeeshan> ssi
[13:18:10] <zeeshan> that lever bar
[13:18:13] <zeeshan> in the link you posted
[13:18:15] <zeeshan> how does it work
[13:18:32] <zeeshan> is there a mechanical advatange built into it
[13:18:36] <zeeshan> on top of the lever action ?
[13:19:01] <ssi> no it's just lever action
[13:19:13] <ssi> but it's hooked severely so you get a convenient angle
[13:19:17] <zeeshan> why does it look like it has a pivot
[13:19:24] <zeeshan> ah
[13:19:26] <ssi> it pivots on the bearings
[13:19:27] <ssi> wheels
[13:19:41] <zeeshan> hmmm that would be nice to have!
[13:19:50] <ssi> yeah for $70 it seems worthwhile
[13:19:52] <zeeshan> i wonder if i can buy it locally
[13:20:05] <ssi> you have northern tool up there in the northern country?
[13:20:59] <daxro> I used one of those pry bars on wheels once or twice there very handy and save getting hernias
[13:23:30] <zeeshan> NO
[13:23:32] <zeeshan> er caps
[13:24:38] <ssi> zeeshan: god this really doesn't look fun http://www.egrapevine.info/article-image/124
[13:25:18] <archivist> zeeshan, you can also hire those machine skates
[13:25:28] <ssi> guy at Z1 suggested that best way is to do it on a lift, drop the entire front suspension out with crossmember, and lower the engine/trans together
[13:26:17] <archivist> hehe he has the crane in 90 deg out
[13:26:29] <ssi> yea he said it wouldn't reach from the front :P
[13:29:08] <ssi> hah even better
[13:29:08] <ssi> http://i460.photobucket.com/albums/qq330/gt1_rare_f8/IMG_0034-1.jpg
[13:30:32] <CaptHindsight> when we were kids we used to use a pipe and a fence, and hardly anyone got hurt :)
[13:31:10] <ssi> there's almost no clearance in this car
[13:31:14] <ssi> that engine is STUFFED in there
[13:31:54] <zeeshan> lol ssi
[13:32:02] <pcw_home> yeah pretty big engine in that tin can
[13:32:26] <ssi> pcw_home: that's pretty much my style :)
[13:34:00] <pcw_home> When I was a kid my parents had a 1957 Chevy station wagon with a inline 6
[13:34:01] <pcw_home> I think it had a clear 1 foot on either side of the engine...
[13:34:07] <ssi> ha yep :D
[13:34:18] <ssi> straight 6s are super easy to fit
[13:34:43] <ssi> the tt is a wide deck V6 with wide ass twin cam heads and then the two turbos and associated piping stuffed on either side of that
[13:35:04] <ssi> all in a tiny 2 seat body
[13:35:51] <archivist> I stood either side of a 4cyl viva engine to put it back in acres of space
[13:36:12] <daxro> TT's are massive compared to my car
[13:36:46] <ssi> they're bigger than miatas :P
[13:37:11] <daxro> https://goo.gl/photos/ysNXcPk5LtVh2L7M8
[13:37:43] <ssi> fair enough :)
[13:37:51] <daxro> lol
[13:38:18] <ssi> it looks like it started life as a 50's MG :P
[13:39:09] <daxro> Started life as a hayabusa motorbike haha
[13:39:13] <ssi> hahah
[13:40:52] <daxro> Things we get up to in the garage! and now my cnc milling getting there, who only knows what is next!
[13:42:02] <aventtini6> guys one opinion on the china edgefider?
[13:42:06] <aventtini6> any good?
[13:42:18] <ssi> the one I had, the rubber inside broke easily
[13:42:27] <ssi> I buy starret or B&S edge finders, they're not much more money
[13:43:31] <anomynous> get a 3d taster :]
[13:43:40] <aventtini6> i have 4 of them
[13:43:42] <aventtini6> :))
[13:43:43] <ssi> how do you taste in three dimensions?
[13:43:53] <aventtini6> ninken
[13:43:56] <aventtini6> hoffman
[13:43:58] <ssi> sounds delicious
[13:44:10] <aventtini6> the tips are expensive
[13:44:14] <anomynous> ssi: first you put something on your tongue. Then something else under it. And last something on both sides of it.
[13:44:18] <aventtini6> ninken is 250e
[13:44:19] <ssi> anomynous: OH
[13:44:19] <anomynous> mm
[13:44:26] <aventtini6> only the tip
[13:44:27] <anomynous> one more. have to cover the tip of it.
[13:44:29] <anomynous> yea
[13:44:31] <ssi> just the tip
[13:44:34] <anomynous> dont use too big bites
[13:44:39] <anomynous> or you will have problems
[13:45:04] <aventtini6> hoffman is 30e the tip
[13:45:54] <aventtini6> i have good blum baluff dut i dont have the Infrared interface for it plus my spindle dont index
[13:46:20] <aventtini6> http://www.aliexpress.com/item/CNC-Tool-Electronic-Optical-edge-finder-LED-Sound-Shank-OEF-20L-TYPE/1848081134.html?spm=2114.01020208.3.90.K8vrap&ws_ab_test=searchweb201556_2,searchweb201527_2_71_72_73_74_75,searchweb201560_9
[13:46:39] <aventtini6> it says 0,005mm
[15:15:39] <Contract_Pilot> Sup.
[15:16:01] <Contract_Pilot> looks like all the good motor/driver deals are gone... now
[15:17:10] <ssi> aw
[15:19:19] <Contract_Pilot> 9.00 ones went to 122.00 now hahaha
[15:19:43] <ssi> lol
[15:19:47] <ssi> I got four of the newegg ones
[15:19:53] <ssi> they claim to have been shipped but the tracking number isn't useful yet
[15:20:06] <Wolf_> probably cause someone kept buying them all up :P
[15:20:36] <ssi> oh maybe it is active
[15:20:36] <ssi> https://tools.usps.com/go/TrackConfirmAction?tLabels=LS152571045CN+
[15:21:09] <Wolf_> mine from newegg have china tracking numbers
[15:21:24] <ssi> that's a china tracking number
[15:22:50] <XXCoder> malcom2073: just got mine :)
[15:24:17] <Contract_Pilot> Yea, mine also coming from china.
[15:24:56] <XXCoder> I ws talking about refund :)
[15:25:09] <XXCoder> unless you was talking to some comment before I rejoined
[15:25:19] <ssi> what did you get refunded?
[15:26:22] <Contract_Pilot> Well, I should ahve 29 of the 9.00 ones any day!
[15:26:31] <ssi> 29?! hah
[15:26:40] <ssi> no wonder the price went up ;)
[15:26:41] <XXCoder> ssi: oh that seller had 3d printers for cheap
[15:26:53] <Contract_Pilot> Yea, 29 snagged another 9 last night.
[15:27:19] <Contract_Pilot> XXcoder glad you got a refund
[15:27:20] <jdh> I never got a notice
[15:27:22] <XXCoder> but it turns out to be scam. surpise! :P I guessed so but worth risk
[15:27:31] <XXCoder> thanks
[15:27:43] <Contract_Pilot> No risk no reward.
[15:28:13] <Contract_Pilot> Dont take the test? How do you know if you will pass!
[15:28:36] <XXCoder> it helped that aliexpress is eschow service
[15:28:40] <XXCoder> less risk than say ebay
[15:28:46] <Contract_Pilot> Yep.
[15:34:44] <Praesmeodymium> oh so more mototrs are showing up if ya got 9 more last night
[15:34:52] <Praesmeodymium> I wonder what the stock is like
[15:35:20] <Contract_Pilot> Not sure... that e-mail goes un answerd
[15:35:36] <Contract_Pilot> But looks like he is jacking the price.
[15:35:54] <ssi> they're probably going to be junk too
[15:36:35] <Praesmeodymium> the ones we got so far dont seem to be junk
[15:37:00] <Contract_Pilot> The ones I have recived have all tested good.
[15:37:04] <ssi> that's good
[15:37:08] <Praesmeodymium> ofc I have to rely on Contract_Pilot's findings since I havent gotten off my ass to do more than vicually inspect
[15:38:11] <Praesmeodymium> motors turn, have a resitance on coils, I've seen video of him getting them to move, but thats not hooking it up to a load and running some shit
[15:39:38] <Contract_Pilot> Need a way to measure the motors
[15:39:51] <Praesmeodymium> well if you happen to grab any nema 8's I want 1 more and havent managed to scalp one more yet
[15:40:10] <Contract_Pilot> The 12V 21A Supply operating at 14V 13.8 for Ham http://www.stevenrhine.com/wp-content/uploads/2015/10/12V-21A-PSU-14V-Stable-1-1024x576.jpg
[15:40:31] <Contract_Pilot> No nema8's
[15:40:46] <Contract_Pilot> Well no telling what they will be sending from china.
[15:41:05] <Contract_Pilot> Not real happy with them sending form china.
[15:41:12] <Contract_Pilot> they way they pack them
[15:42:48] <Contract_Pilot> they sending a replacement for this one. Rather banged up! http://www.stevenrhine.com/wp-content/uploads/2015/10/Driver-Scratched-2-1024x576.jpg
[15:44:11] <Praesmeodymium> oh yeah, i got one with a motor wire that got damaged in transit, I wasnt too happy but its a wire not like I was suspcious of trying to dump 3 amps through the size and length anyway
[15:44:42] <Valen> if you are after a high current 12v supply look at blade center power supplies
[15:44:54] <Valen> you can get hundreds of amps for like $100
[15:45:20] <Wolf_> I got 100A for $27
[15:45:37] <ssi> I got a couple of DL380G5 server power supplies for $35 apiece on amazon last year
[15:45:40] <ssi> they're 72A 12v supplies
[15:45:53] <ssi> just gotta figure out what to jumper on them to make them switch on
[16:11:13] <XXCoder> wow http://adequateman.deadspin.com/the-xbox-one-is-garbage-and-the-future-is-bullshit-1736054579
[16:12:33] <andypugh> ssh -Y andypugh@mill.local / halcmd loadusr halmeter -s pin motion.program-line Is a very handy way to monitor a remote machine.
[16:41:34] <Deejay> gn8
[17:00:22] <Erant> So I bought this cheapo $20 Dell Optiplex GX620 to run LinuxCNC on. Without doing anything to it, I get ~40us of jitter on the servo thread. With isolcpus=1, that goes down to maybe 25us. With idle=nomwait I go down to about 15us. With idle=poll I hold steady at around 4us.
[17:00:48] <Erant> Obviously this processor doesn't like traversing C-states. Is there anything more power friendly than idle=poll I can use?
[17:01:38] <Erant> Apparently I'll be software stepping for a while, because my 5i25 won't be here for another 1-2 weeks. I think.
[17:02:09] <Erant> But I'm running 2048 line encoders on my servos so if I want any kind of speed I need a very high step frequency.
[17:09:10] <PCW> no going to be running very fast in any case with 8192 counts/turn and software stepping
[17:09:36] <PCW> thats 160 KHz at 1200 RPM
[17:10:30] <Erant> Right. I'm willing to deal with it until I get the 5i25.
[17:11:18] <PCW> software stepping will likely not work to more than 100 KHz with 0 latency
[17:11:53] <PCW> (faster with plug in parallel ports than MB ports)
[17:12:07] <Tom_itx> .
[17:12:36] <Erant> Interesting. Why do you figure? MB ports would go through the southbridge, so it's connected via HT to the main CPU.
[17:12:46] <Erant> Or whatever bus Intel has cooked up these days to wire up the SB
[17:13:01] <PCW> this is because MB ports almost always have a LPC interface which typically makes each transaction take about 2-3 usec
[17:13:54] <Erant> oh lame.
[17:13:59] <PCW> even 50 KHz often slows the CPU to a crawl
[17:14:57] <PCW> PCI cards are better, maybe .5 to 1 usec depending on MB and how many bridges you are traversing
[17:15:31] <Erant> Fair enough. Sounds like it's not worth the hastle. Maybe I'll give Mesa a ring to see if I can pick the boards up instead of shipping. Heard they're swamped though.
[17:15:47] <PCW> that is so
[17:24:49] <JT-Shop> ssi, https://github.com/jthornton now to figure out what my password is lol
[17:28:04] <andypugh> zeeshan: There is a nice spindle motor for your lathe sat outside at work waiting to be scrapped. 475kW.
[17:29:58] <andypugh> I assume it used to be an axle dyno, so needed to be able to manage vehicle wheel torques and speeds. It’s not small.
[17:30:54] <DaViruz> i'd imagine there are some beefy brake resistors somewhere to ho with it?
[17:34:58] * JT-Shop thinks a Weihenstephaner is in order I only tipped the scales at 3152 ounces
[17:41:59] <andypugh> That’s only slightly more than me.
[17:42:12] <andypugh> And I am only about 2’ tall.
[17:47:24] <JT-Shop> looking for 180 by end of the year... tired of being obese
[17:47:37] <JT-Shop> now I'm down to overweight lol
[17:48:01] <Tom_itx> JT-Shop, still under 2 bucks
[17:48:14] <JT-Shop> yep 197
[17:48:25] <JT-Shop> might not be tuesday lol
[17:48:34] <JT-Shop> depends on how much Pete feeds me
[17:48:48] <Tom_itx> you can bike it off
[17:49:15] <JT-Shop> that's what I'm doing, as well as changing my dietary habits
[17:49:43] <Tom_itx> see food diet?
[17:50:04] <JT-Shop> yea lol, just don't eat carbs during the day so I eat less
[17:50:15] <JT-Shop> 53 pounds down, 17 to go :)
[17:51:15] <JT-Shop> ssi, you still around?
[17:51:16] <Tom_itx> 2944 dripping wet here
[17:51:27] <Tom_itx> but that's never really been my problem
[17:51:36] <Tom_itx> more bp here
[17:52:13] <JT-Shop> I think the biking is what dropped my pressure to 120/70
[17:52:21] <malcom2073> oz? really? At least use a reasonable measurement: 13.1 stone
[17:52:31] <Tom_itx> mine spikes through a day
[17:52:42] <JT-Shop> it was like 140/95
[17:53:21] <Tom_itx> 138/81 earlier but it will drop to 12ish/70ish later
[17:53:38] <JT-Shop> I'm 14.071428571 stone
[17:54:14] <Tom_itx> 13.214285
[17:54:22] <JT-Shop> looking to stay < 13 stone
[17:54:48] <JT-Shop> I do like hexchat better than xchat
[17:54:48] <Tom_itx> you'll live longer
[17:54:54] <Tom_itx> hmm
[17:55:03] <Tom_itx> on linux?
[17:55:11] <JT-Shop> that's my plan
[17:55:12] <Tom_itx> been using xchat
[17:55:18] <JT-Shop> yep linux
[17:55:32] <andypugh> Apparently I weigh 26 1/2 Cloves.
[17:55:56] <JT-Shop> now that's a new one for me lol
[17:56:36] <malcom2073> Wow
[17:56:36] <andypugh> https://en.wikipedia.org/wiki/English_units#/media/File:English_mass_units_graph.svg
[17:56:40] <malcom2073> google doesn't have firkin conversions
[17:56:50] <JT-Shop> ah that is 168.275 arratel
[17:56:51] <malcom2073> I'm 2.1 firkins
[17:57:36] <JT-Shop> I wonder how many sacks I am
[17:58:12] <andypugh> About half, I think.
[17:59:04] <JT-Shop> yep a tad over a half a sack
[18:00:27] * JT-Shop wanders out to the deck
[18:02:38] <zeeshan> zzzzzzzzzzz
[18:02:54] <Tom_itx> you manage to budge your lathe?
[18:03:03] <zeeshan> just got home from work
[18:03:14] <zeeshan> i got friends coming over fri
[18:03:22] <zeeshan> we're gonna lever it up together
[18:03:34] <zeeshan> one person w/ a lever will ensure machine doesnt roll back
[18:03:35] <Tom_itx> serve the beer after it's done...
[18:03:37] <zeeshan> the other 2 will move it forward
[18:04:51] <zeeshan> todays goal is : oil change
[18:04:57] <zeeshan> and put the trans and spindle motor back on the machine
[18:05:05] <zeeshan> (car oil change - unrelated to machine)
[18:05:06] <zeeshan> :P
[18:05:17] <Tom_itx> yeah... add weight back to it before you move it!
[18:05:26] <zeeshan> the thing is
[18:05:30] <zeeshan> i wont be able to access that area easily
[18:05:38] <zeeshan> once its bolted on
[18:05:51] <zeeshan> er
[18:05:54] <zeeshan> once it's moved into spot
[18:06:29] <PetefromTn_> jeez man helping my daughter with her math homework is making me depressed ;)
[18:08:03] <Wolf_> can’t math?
[18:08:14] <PetefromTn_> apparently not hehe
[18:09:11] * PetefromTn_ can't freakin' solve for X damnit!!
[18:09:53] <Tom_itx> x is the unknown
[18:10:16] <PetefromTn_> yeah I know man
[18:10:30] <PetefromTn_> I am kinda kidding sorta ;)
[18:10:32] <Tom_itx> been doing that here lately as well
[18:10:52] <PetefromTn_> here's one
[18:11:14] <PetefromTn_> 4(R+3)=W for R
[18:11:24] <PetefromTn_> simple right LOL
[18:11:59] <zeeshan> lol
[18:12:05] <zeeshan> divide both sides by 4
[18:12:13] <zeeshan> subtract 3
[18:12:33] <zeeshan> if you ever are unsure
[18:12:41] <PetefromTn_> I got (R+3)=W/4
[18:12:52] <zeeshan> subtitute a value for r and w
[18:12:59] <PetefromTn_> R+3=W/4
[18:13:01] <zeeshan> and see of the left hand side of the equation equals the right
[18:13:12] <PetefromTn_> r=w/4-3
[18:13:21] <zeeshan> yep
[18:13:24] <malcom2073> That's correct
[18:13:31] <zeeshan> how old is your daughter?
[18:13:33] <PetefromTn_> I was hopin so LOL
[18:13:36] <PetefromTn_> don't ask
[18:13:43] <PetefromTn_> its embarassing
[18:13:47] <zeeshan> tell meeeeee
[18:13:49] <Tom_itx> ~14 ish
[18:13:51] <zeeshan> im curious when they learn this
[18:13:59] <PetefromTn_> heres another one
[18:13:59] <malcom2073> Two variable is... 5th grade?
[18:14:14] <malcom2073> no, middle school, so 6th or 7th
[18:14:17] <PetefromTn_> 2x+B=W
[18:14:21] <malcom2073> trying to remember when I learned algebra heh
[18:14:34] <PetefromTn_> for X
[18:14:37] <Tom_itx> still trying to find a use for it
[18:14:44] <Tom_itx> i prefer geometry etc
[18:14:46] <zeeshan> Tom_itx: what!!
[18:14:47] <PetefromTn_> me too
[18:14:50] <zeeshan> i use it all the time!!
[18:14:55] <malcom2073> I use calculus all the time, it depends on what you're doing
[18:14:56] <Tom_itx> i'm happy for you
[18:15:02] <zeeshan> if youre not using it
[18:15:05] <zeeshan> youre making your life harder
[18:15:06] <zeeshan> !
[18:15:19] <PetefromTn_> I got 2x-B=W-B
[18:15:33] <malcom2073> 2x=W-B
[18:15:40] <PetefromTn_> 2X=W-B
[18:15:41] <malcom2073> If you do 2x+B-B, you get 2x
[18:15:47] <Tom_itx> x= w/2-b
[18:15:52] <PetefromTn_> X=(W-B)/2
[18:15:59] <malcom2073> PetefromTn_ Yep
[18:16:02] <zeeshan> look at us folks
[18:16:05] <zeeshan> we're a buncha old farts
[18:16:07] <PetefromTn_> Woohoo
[18:16:09] <zeeshan> helping pete's kid with math
[18:16:09] <zeeshan> haha
[18:16:12] <PetefromTn_> I got two right LOL
[18:16:16] <malcom2073> Tom_itx: You can't divide 2 from w without dividing 2 from b
[18:16:28] <PetefromTn_> I appreciate it because it has been so damn long since I did this stuff its not even funny
[18:16:29] <Tom_itx> yeah that's right
[18:16:40] <_methods> science goin on up in here
[18:16:44] <PetefromTn_> so its wrong?
[18:16:47] <malcom2073> zeeshan: Give it 20 years once you get out of school
[18:16:50] <_methods> arithmetics
[18:16:51] <malcom2073> You *really* do lose a lot
[18:16:56] <Tom_itx> PetefromTn_, no i was
[18:16:58] <malcom2073> PetefromTn_: No, you're correct
[18:17:00] <PetefromTn_> I sure as hell did LOL
[18:17:03] <zeeshan> malcom2073: arent you like 18
[18:17:05] <zeeshan> :D
[18:17:08] <malcom2073> zeeshan: Nope :P
[18:17:13] <PetefromTn_> one last one
[18:17:25] <Tom_itx> see what google says
[18:17:26] <PetefromTn_> X(1+Y)=Z for C
[18:17:30] <PetefromTn_> forX
[18:17:33] <malcom2073> There's no C there!
[18:17:33] <PetefromTn_> not C LOL
[18:17:34] <malcom2073> Oh heh
[18:17:46] <malcom2073> Divide out 1+Y, that one is fairly easy
[18:17:55] <Tom_itx> we're doing that with powers here
[18:18:10] <PetefromTn_> so X=z(1+Y)
[18:18:17] <zeeshan> no
[18:18:20] <malcom2073> z/(1+y)
[18:18:20] <PetefromTn_> damn
[18:18:23] <malcom2073> Divide out
[18:18:33] <PetefromTn_> yeah forgot the divide slash LOL
[18:18:34] <malcom2073> Parens important there
[18:18:36] <zeeshan> PetefromTn_: do you remember bedmas?
[18:19:25] <PetefromTn_> isnt that an anacronym for order like pemdas
[18:19:31] <PetefromTn_> or something
[18:19:32] <zeeshan> yes
[18:19:42] <PetefromTn_> whats bedmas
[18:19:44] <zeeshan> brackets exponnents division multiplication addition asubtraction
[18:19:50] <zeeshan> its the order of operations you gotta do
[18:19:56] <Tom_itx> 35x^2 Y^3 z^4 + 45x^4 y^3 z^2 /-5x^2 Y^2 z
[18:19:56] <PetefromTn_> OK same thing then
[18:19:57] <Tom_itx> there
[18:20:00] <Tom_itx> solve that
[18:20:06] <PetefromTn_> no thank you LOL
[18:20:08] <_methods> FU
[18:20:10] <_methods> lol
[18:20:33] <_methods> x=the right answer
[18:20:42] <malcom2073> Tom_itx: http://www.wolframalpha.com/input/?i=solve+35x%5E2+Y%5E3+z%5E4+%2B+45x%5E4+y%5E3+z%5E2+%2F-5x%5E2+Y%5E2+z+for+x
[18:20:44] <malcom2073> :P
[18:20:47] <PetefromTn_> I thank you and my Daughter thanks you... take a bow guys!
[18:21:01] <PetefromTn_> hehehe
[18:21:02] <Tom_itx> -7yz^3 - 9x^2yz
[18:21:02] <zeeshan> if you solve for z
[18:21:03] <zeeshan> you get
[18:21:19] <zeeshan> wat
[18:21:41] <zeeshan> what are we solving for!
[18:21:48] <Tom_itx> simplify
[18:21:52] <Tom_itx> you can't solve it
[18:21:54] <zeeshan> for z i get 9x^4 y^2 / 5
[18:21:55] <zeeshan> :P
[18:22:03] <malcom2073> http://www.wolframalpha.com/input/?i=simplify+35x%5E2+Y%5E3+z%5E4+%2B+45x%5E4+y%5E3+z%5E2+%2F-5x%5E2+Y%5E2+z
[18:22:15] <PetefromTn_> jeez man you're givin me a headache
[18:22:20] <Tom_itx> hah
[18:22:33] <PetefromTn_> zeeshan hey man I had a nail biter at work today LOL
[18:22:42] <zeeshan> what happened
[18:22:55] <Tom_itx> PetefromTn_, that's the next chapter... better get ready :D
[18:23:04] <PetefromTn_> well I finished this sweet little mid pipe from stainless for an RX7
[18:23:12] <PetefromTn_> and was getting ready to head home
[18:23:22] <malcom2073> I had to do some stupid polynomials for something recently
[18:23:27] <malcom2073> Oh yeah, calculating out checksums for QR codes
[18:23:28] <PetefromTn_> when they bring me this brand new precision turbo cold side housing
[18:23:51] <PetefromTn_> and a cast aluminum elbow marked for position
[18:23:52] <malcom2073> Reed-Solomon error correction
[18:23:57] <zeeshan> lol
[18:24:19] <PetefromTn_> I have never welded on that and if I screwed it UP I screw up a 2000 dollar turbo LOL
[18:24:30] <Tom_itx> PetefromTn_, guess what?
[18:24:34] <PetefromTn_> I managed to stick it and make it look decent
[18:24:37] <PetefromTn_> Tom_itx what?
[18:24:41] <zeeshan> nice man!
[18:24:42] <Tom_itx> better not screw it up!
[18:24:47] <PetefromTn_> I know right
[18:24:49] <PetefromTn_> no pressure
[18:25:04] <PetefromTn_> you would have been proud of my midpipe shit was CLEAN!!
[18:25:26] <zeeshan> no pix?
[18:25:42] <PetefromTn_> oh yeah I actually did snap one or two LOL
[18:25:45] <PetefromTn_> hang on
[18:30:01] <PetefromTn_> freakin' imgur is pukin'
[18:32:52] <PetefromTn_> well imgur is not working
[18:33:17] <zeeshan> =\
[18:33:31] <PetefromTn_> any other decent image posting sites?
[18:33:47] <Tom_itx> imagebin
[18:34:32] <Tom_itx> http://imagebin.ca/
[18:34:47] <PetefromTn_> ok
[18:34:56] <zeeshan> dont do it !
[18:35:01] <zeeshan> its a canukistan website
[18:35:05] <zeeshan> nooooooooo
[18:35:17] <JT-MOBILE> Imagebin
[18:35:23] <SpeedEvil> 4chan
[18:35:34] <PetefromTn_> http://imagebin.ca/v/2J48KM83nbgh
[18:36:02] <zeeshan> nice
[18:36:34] <JT-MOBILE> Nice
[18:36:39] <PetefromTn_> http://imagebin.ca/v/2J48lWEW5nFL
[18:37:14] <PetefromTn_> hm it rotated the image for some odd reason
[18:37:38] <PetefromTn_> oh wait if you click it it goes back
[18:37:44] <PetefromTn_> and you can zoomie it LOL
[18:37:51] <Wolf_> I find it easier to weld things under cars if you flip them on the side as well
[18:38:01] <PetefromTn_> LOL
[18:38:05] <JT-MOBILE> Hard to do on a phone lol
[18:38:13] <PetefromTn_> I pieced it and tacked it under the car on the lift
[18:38:22] <PetefromTn_> then finished welded most of it on the table
[18:38:37] <PetefromTn_> then I put it BACK in the car and tacked the final flange in
[18:38:47] <PetefromTn_> then pulled it back out of the car and welded it all up
[18:38:56] <PetefromTn_> then put it back in the car and fabbed up the hangar
[18:39:04] <PetefromTn_> and welded it under the car on the lift
[18:39:07] <PetefromTn_> hehehe
[18:41:14] <PetefromTn_> https://www.facebook.com/MarchScopes the making of a $4k riflescope body...
[18:41:18] <PetefromTn_> interesting
[18:41:21] <JT-MOBILE> The deer are here
[18:45:29] <PetefromTn_> what deer?
[18:46:28] <PetefromTn_> http://www.foxsports.com/buzzer/story/samurai-batting-cage-slices-100-mph-fastball-in-half-101415 LIke A BOSS!!
[18:46:32] <JT-MOBILE> The ones I feed every night
[18:47:00] <PetefromTn_> then it shouldn't be a surprise they are there then ;)
[18:49:35] <Erant> intel_idle.max_cstate = 0 seems to result in ~10us jitter. (Disables intel_idle and goes to acpi_idle).
[18:51:02] <JT-MOBILE> They are seldom late for dinner
[18:51:26] <Erant> Probably better than idle=poll for keeping the machine coo... Nevermind, it just spiked to 25us again.
[18:51:31] <andypugh> Erant: Don’t spend too much time chasing latency. 20k is good enough, move on to config and making chips.
[18:51:55] <Erant> andypugh: Yeah. Fair enough, I'm just curious.
[18:53:26] <zeeshan> how does latency come into play anyway?
[18:53:38] <zeeshan> if you got 20us latency for example
[18:53:46] <zeeshan> latency spike
[18:53:56] <Erant> It's not latency, it's jitter.
[18:54:02] <zeeshan> that means the servo won't turn until 20 us later?
[18:54:17] <Erant> For software stepping, it can mean you're out of spec for the setup/hold times of your system.
[18:54:20] * zeeshan never saw it being a problem
[18:54:31] <zeeshan> yes but why is it not a problem w/ hardware stepping
[18:54:40] <Erant> Because of pulse widths.
[18:54:43] <zeeshan> doesnt the computer nmeed to send pulses to the hardware controller?
[18:54:48] <andypugh> It means that the time-based calculations will be off by that much, and for software steping it means that a step will be that amount early or late.
[18:55:27] <Erant> andypugh: Not even that, I could see you hitting hold time violations if you hit on end of the jitter spectrum and then the other.
[18:55:45] <Erant> Unlikely, but it could happen (which means it will)
[18:55:55] <andypugh> zeeshan: With a hardware stepgen it sends a step rate to output for the nexr mS. Then next time round it reads back how many steps were actually made and re-calculates the step rate for the next mS.
[18:57:08] <andypugh> Erant: That shouldn’t happen unles the hold time is in the order of a thread cycle, and they generall aren't
[18:57:30] * zeeshan is too tired to understand
[18:57:34] <zeeshan> but i think i follow somewhat.
[18:57:43] <zeeshan> it sends a pulse train ahead of time
[18:57:47] <Erant> zeeshan: Basically it violates the realtime nature of the system.
[18:57:57] <Erant> Fundamentally that's what happens.
[18:59:07] <zeeshan> andypugh: how does it work for servos?
[18:59:08] <zeeshan> analog
[18:59:39] <andypugh> Erant: I wouldn’t go that far. Smoothstepper and such do, but the Mesa cards don’t actually buffer, they still rely on a 1mS update rate.
[19:00:34] <Erant> andypugh: That's interesting. So the mesa cards are relatively 'dumb'?
[19:01:07] <Erant> Has anyone taken the HostMot2 firmware and put it on something other than the Mesa cards ever?
[19:01:18] <Erant> I have a stack of random boards here...
[19:01:36] <zeeshan> andypugh: fyi
[19:01:48] <zeeshan> i have left my mill on pause for the entire day
[19:01:54] <zeeshan> i was nervous to do it
[19:02:01] <zeeshan> but it didnt move :P
[19:06:43] <Tom_itx> or it took a walk and returned exactly where it was!
[19:07:01] <zeeshan> lol
[19:09:46] <andypugh> Erant: Yes, there is a chap in Bulgaria who makes machines running Hostmot2 firmware on his own hardware
[19:10:08] <andypugh> zeeshan: It just finished, so no need.
[19:11:26] <andypugh> (Well, half-finished, I need to flip the block and do the rest of the cavity, too big for the machine.
[19:12:57] <andypugh> https://picasaweb.google.com/lh/photo/xWSYzO5oaFhnPfpZh-m1h9MTjNZETYmyPJy0liipFm0?feat=directlink
[19:14:10] <Erant> How are you finding machining MDF? I need some cheap material to cut some thermoform molds from.
[19:14:37] <andypugh> It is cheap. It doesn’t have much else going for it.
[19:15:09] <Erant> I was going to try HDPE. Figured that'd produce less dust to get into all the nooks and crannies.
[19:15:39] <andypugh> Yes, though that isn’t as cheap. On the plus side you don’t have to glue it together into blocks.
[19:16:14] <andypugh> I prefer HDPE, and I have quite a lot of it, but no lumps big enough for ths job.
[19:16:58] <andypugh> The dedicated Model Boards certainly make a lot less dusty mess.
[19:17:55] <andypugh> (Though once the cavity fills with fluff the airborne dust level is reasonably low). https://picasaweb.google.com/lh/photo/ujCfmLeggISPOKbFc8at69MTjNZETYmyPJy0liipFm0?feat=directlink
[19:18:20] <Erant> andypugh: Yeah, but modelling board is $$$ and these aren't complicated shapes.
[19:19:17] <andypugh> glued-together hardwood ply i snicer than MDF, though you do tend to discver voids in the plies.
[19:19:33] <andypugh> Knifing Putty (stopper) is the solution to that, before painting.
[19:19:49] <Erant> I'm actually mostly worried about dust getting into all the oiled surfaces.
[19:20:23] <andypugh> I laid blue paper towel over my slides to try to limit that.
[19:24:39] <Erant> I use sawdust to pick up oil in the workshop. Doesn't do great things to oiled surfaces.
[19:24:39] <andypugh> MDF ends up furry, and can be hard to sand to a good finish. The Internet suggested this: http://www.screwfix.com/p/zinsser-b-i-n-shellac-based-primer-white-1ltr/29661 and it seems to do the trick. It’s spirit-based so wicks in deep and dries fast.
[19:33:30] <TekniQue> https://www.youtube.com/watch?v=sFrVdoOhu1Q
[19:33:32] <TekniQue> neat
[19:33:36] <TekniQue> a granite bed lathe
[19:38:08] <zeeshan> repost
[19:38:09] <zeeshan> :D
[19:39:08] <PetefromTn_> yeah that is a sweet lathe
[19:39:57] <malcom2073> Nice
[19:40:05] <malcom2073> Yeah that guy is crazy
[19:40:09] <malcom2073> Smart, but crazy :)
[19:44:17] <malcom2073> Also zeeshan: Don't be *that* guy :P
[19:45:10] <zeeshan> :P
[19:45:53] <malcom2073> Are there any boards that do decent motion control (4th order or at least constant jerk), that *do* buffer?
[19:46:22] <malcom2073> I know LinuxCNC wouldn't support such a thing, it's against their mantra, but still
[22:18:20] <PetefromTn_> jeez its Dead as hell in here tonight
[22:19:53] <Tom_itx> practicing for halloween
[22:20:03] <PetefromTn_> oh yeah how so?
[22:20:12] <Tom_itx> being dead n all..
[22:20:24] <PetefromTn_> ah
[22:20:49] <PetefromTn_> I got my halloween decorations down last week
[22:21:02] <PetefromTn_> we got most of them put up but still have a bunch of things to do
[22:21:21] <PetefromTn_> somehow we are missing a BUNCH of those small black extension chords we used for all of that stuff
[22:22:59] <PetefromTn_> I need to get some of those large garage shelves units