#linuxcnc | Logs for 2014-08-30

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[00:03:17] <toastyde2th> lol it's hard to buy a small VMC that's under like 2500 IPM now
[00:03:25] <toastyde2th> if your machine has linear motors it'll do like 6000 ipm
[00:16:29] <Jymmm> and if it has logarithmic motors, it'll build you a cabin in the woods
[00:19:37] <roycroft> i'm too old for that kind of speed
[00:19:51] <XXCoder> yeah
[00:20:05] <XXCoder> with your older age, you need greater speed. like 100,000 ipm
[00:20:12] <XXCoder> less time wasted
[01:19:56] <toastyde2th> high speed machines are so scary
[01:20:07] <toastyde2th> I really don't like having windows on fast rapid machines
[01:20:17] <toastyde2th> my butthole hurts from clenching it too hard over time
[01:20:38] <toastyde2th> ZIP "hrk" ZIP ZIP ZIP "oh god" ZIP "ow"
[01:24:48] <Jymmm> TMI
[01:31:37] <Loetmichel> hrhr
[01:35:44] <Loetmichel> toastyde2th: i know what you mean. i made this machine for a friend... it can do 1200 ipm. i have limited it in software to 600 ipm because to scary ;-) -> https://www.youtube.com/watch?v=uYgyqjHCBLg
[01:46:23] <Jymmm> my machine can move 85,000 miles/second... cutting air
[01:47:59] <Loetmichel> Jymmm: i dont believe you
[01:48:29] <Jymmm> Loetmichel: Fine, send me some air and I'll show you!
[01:50:10] <Loetmichel> 85000 miles/sec would be about a quarter the speed of light... ;-)
[01:50:46] <Jymmm> no, thats 133,000
[01:51:27] <Jymmm> err 186,000
[02:54:26] <anarchos2__> wow those are crazy high speeds
[02:54:36] <anarchos2__> i wonder how i can get more speed out of mine
[02:54:46] <anarchos2__> my motors seems to make weird noises after 25ipm
[02:54:49] <anarchos2__> and lose steps
[02:55:04] <anarchos2__> or like...do weird ass things
[02:57:01] <anarchos2__> i wonder if i turned my microstepping down
[02:57:13] <anarchos2__> or get a mesa card, maybe?
[03:00:59] <anarchos2__> i'm not sure if it's the pc, the driver or the motors themselves that can't keep up
[03:38:11] <Loetmichel> gnah, sweating like hell. that is the fith weekend in line i am driving to the trash burning power plant. why did my landlod had the idea to paint the house and the balconys?
[03:38:50] <Loetmichel> <- packing the car with the last batch of 8 times 120 liters trash bags... it seems i am kind of a messy guy.... where did all that stuff on the balconys come from?
[05:12:46] <archivist> anarchos2__, steppers cannot manage high speeds
[05:15:54] <Jymmmm> What's a good way to have something maintain symmetry but appear random?
[05:16:47] <Jymmmm> random, "organic", etc
[05:19:37] <archivist> you are speaking of an oxymoron
[05:20:07] <Jymmmm> Sorry, not metaphorically, but visually.
[05:21:30] <Jymmmm> Like if blades of grass are planted on a grid/hex, but not appear as such.
[05:21:36] <archivist> nobody can possibly know what you want from that description
[06:57:15] <jthornton> ssi_, you around?
[11:06:44] <roycroft> i've emailed the seller of those ball screws asking for the length of thread on each
[11:07:29] * roycroft hopes to get useful answers
[11:07:39] <zeeshan> those ball screws have drawings online
[11:08:30] <roycroft> i actually just found another listing for the same ones
[11:08:34] <roycroft> which has the drawings
[11:08:44] <roycroft> and are on sale
[11:09:23] <CaptHindsight> and hope the drawings are accurate
[11:10:46] <roycroft> hmm, so i lose 108mm, including the length of the nut
[11:10:52] <CaptHindsight> I tend to get some excuse for inaccuracies like "oh that old drawing, this newer but better part"
[11:11:08] <XXCoder> lol
[11:11:10] <CaptHindsight> "it still work right?"
[11:11:20] <zeeshan> http://www.kijiji.ca/v-tool-other/barrie/machine-shop-layout-table/1014661289?enableSearchNavigationFlag=true
[11:11:21] <zeeshan> man
[11:11:24] <zeeshan> that's hell of a deal
[11:11:24] <CaptHindsight> "we only mean could be that long"
[11:11:25] <roycroft> if it's close that's all i need for now
[11:11:26] <zeeshan> for all that stuff
[11:11:44] <zeeshan> that is one sexy steel surface table
[11:11:47] <zeeshan> its like polished
[11:13:01] <roycroft> that is a good deal
[11:13:13] <zeeshan> i think jusjt that table
[11:13:15] <zeeshan> is worth that much
[11:13:24] <CaptHindsight> well over that
[11:13:31] <zeeshan> i only want 3x3.5" angle plate
[11:13:31] <roycroft> my layout table is granite
[11:13:35] <zeeshan> and 4x4" angle plate
[11:13:36] <zeeshan> er
[11:13:37] <zeeshan> 5x5
[11:13:42] <zeeshan> but he wont part them
[11:13:43] <roycroft> it's only 18"x24"
[11:13:52] <zeeshan> yea my table is weaksauce
[11:13:55] <roycroft> so buy the lot and part out the rest
[11:13:59] <zeeshan> its a like 18x18
[11:14:05] <zeeshan> roycroft: i got no room
[11:14:07] <XXCoder> resell rest
[11:14:18] <zeeshan> my garage is absolutely full
[11:14:19] <XXCoder> you probably can gain more money if capt is right
[11:15:25] <zeeshan> do you americans have monday off
[11:15:30] <zeeshan> like us canadians
[11:15:31] <zeeshan> ;D
[11:15:34] <XXCoder> me american monday off
[11:15:35] <Tom_itx> of course we do
[11:15:40] <zeeshan> sweet
[11:15:44] <zeeshan> happy long weekend everyone!
[11:15:45] <zeeshan> :]
[11:18:07] <XXCoder> yeah been woking 6 day weeks, finally no sat AND long weekend,. nice. lol
[11:25:14] <roycroft> same seller has the bearing mounts on sale too
[11:25:31] <roycroft> $287.88 for everything, including shipping
[11:28:43] <CaptHindsight> what's a day off?
[11:29:10] <XXCoder> labor day
[11:29:44] <CaptHindsight> oh, one of those days where nothing gets shipped
[11:31:48] * roycroft pulls the trigger, thinking that's a pretty good deal for a set of ball screws
[11:32:57] <XXCoder> temping for me too but I'd have to vbuy rails again
[11:33:35] <roycroft> the other seller has a 6% off sale on both items
[11:33:47] <roycroft> and they had the drawings with the listings, which was useful
[11:33:56] <roycroft> i didn't wait for a response from the first seller
[11:34:58] <roycroft> and i get six monts at 0% interest to pay for the things
[11:35:09] <roycroft> which means i can use my cash to buy more parts now
[11:39:21] <Deejay> namd
[11:57:49] <PetefromTn_> Have a nice weekend everyone.. I am just waiting for my new bearings to get here who knows how long that will take. The fact that Monday is a Holiday is kinda gonna make it take even longer unfortunately.
[12:35:03] <Tom_itx> PetefromTn_ so much time to work but nothing to work on?
[12:35:48] <PetefromTn_> yeah well I am going to work on the spindle encoder shaft for the motor and my RWS54 12ftlbs destroked Field Target Rifle build.
[12:54:29] <ssi> PetefromTn_: the holiday is making my new laser tube take longer to come too :'(
[12:55:15] <Tom_itx> what happened to the old one?
[12:55:18] <ssi> nothin
[12:55:26] <ssi> ordered a 100W reci tube
[12:55:32] <PetefromTn_> Oh you mean so you can burn down the neighbors hous in record time??
[12:55:38] <ssi> exactly
[12:55:42] <ssi> and then the house on the other side
[12:55:45] <PetefromTn_> ;)>
[12:55:52] <ssi> speaking of houses
[12:55:57] <ssi> a tree fell on my house tuesday :(
[12:56:08] <PetefromTn_> damn that suck.. wanna buy mine LOL
[12:56:13] <ssi> lol
[12:56:17] <ssi> don't want the house, just the cinci ;)
[12:56:28] <ssi> I'll buy it cheap right now while the bearings are bad!
[12:56:30] <PetefromTn_> hell You can have both if the price is right!!
[12:56:46] <PetefromTn_> hell bearings are on their way man...
[12:56:54] <ssi> YEAH BUT RIGHT NOW THEY'RE BAD
[12:57:00] <ssi> :D
[12:57:03] <PetefromTn_> Gonna be up and running smooth as glass before you can shake a stick.
[12:57:50] <Tom_itx> tool changer too?
[12:57:58] <PetefromTn_> the new bearings are actually rated higher than the originals by a considerable amount.
[12:58:32] <PetefromTn_> Hey if I can con my best buddy and resident Genius Connor into coming over and donating a bit more of his time ya just never know LOL
[12:58:43] <Tom_itx> hammer em into their housing when they arrive
[12:58:43] <PetefromTn_> ;)
[12:59:00] <PetefromTn_> meh I own a decent press..probably don't need one tho.
[13:13:41] <JT-Shop> PetefromTn_, what bearings did you end up getting?
[13:14:18] <PetefromTn_> I got some Fafnir branded versions of the original bearings which are actually rated a bit higher than the originals in grease.
[13:14:27] <PetefromTn_> Got them from an ebay seller in NYC.
[13:14:55] <JT-Shop> cool
[13:26:48] <JT-Shop> I need to bend some 7/8 OD tubing with a .120 wall on 4" radius... wonder if I can bend that
[13:32:48] <marmite> probebly
[13:34:40] <tjtr33> hello from Taipei ! (happy dance, i got some work :)
[13:35:37] <tjtr33> nayone here used usrmot? pretty cool linuxcnc feature, acts like a terminal program, takes ascii commands, moves, even arcs
[13:51:55] <tjtr33> i was trying to run usrmot this way:
[13:51:59] <tjtr33> open a terminal, exec linuxcnc &
[13:52:05] <tjtr33> then cd ~/linuxcnc/configs/stepper-xyza
[13:52:42] <tjtr33> then /usr/bin/usrmot -ini inch.ini
[13:52:42] <tjtr33> you get a list of the cmds that way
[13:53:01] <tjtr33> this is a very poor cnxn, hope the gist made it thru
[13:54:08] <tjtr33> oh yeah, your paths and cfgs will likely vary
[13:56:27] <tjtr33> no gcode involved, so maybe handy for those automation or synchronous tasks mentioned recently
[13:57:29] <CaptHindsight> very inneresting
[13:57:56] <CaptHindsight> tjtr33: connection is fine
[13:58:28] <tjtr33> as i sat on the plane i wondered if it had pins
[13:58:46] <tjtr33> wether usrmot had pins, like a hal component
[14:04:15] <tjtr33> no pins seen, but such a cobbled way of running it after axis wouldnt show it anyway. hal isnt aware of it , halcmd show pin shows no usrmot items
[14:05:52] <tjtr33> well the idea is to inject positions to the quueu directly, then think better of it and issue 'a' ( abort ) and tell it to do soemting else, possibly based some dynamic process input ( cough: like EDM )
[14:06:31] <tjtr33> the credit for the idea/hack is to Dave Engval ( hope i spelled it right this time Dave )
[14:07:17] <tjtr33> he sent me a couple emails on this idea back in 2006 that i _just_ got around to reading on the flight
[14:10:39] <ssi> JT-Shop: that's some pretty heavy walled tubing
[15:03:37] <awyea> I'm trying to set up one of those cheap ebay BOBs, but I'm getting no motor movement so I have my scope out. How should I look at the step pin signal?
[15:58:43] <Deejay> gn8
[16:22:11] <CaptHindsight> awyea: have a link to the cheap BOB? I have several different that I've tried.
[16:26:51] <CaptHindsight> awyea: scope the Step signal where you expect the input to be on the BOB, the .hal will have the pin number
[16:28:10] <CaptHindsight> if you see it there, then check the expected output location, also post which stepper driver you are connecting it to
[17:33:36] <anarchos2__> hola
[17:46:14] <anarchos2__> how do people usually mount their camview cameras to their mill?
[17:46:58] <anarchos2__> i'm just wondering how far from the centre of the spindle it could be before it starts getting weird to align things because of the angle
[17:48:56] <f1oat> my camera is about 100mm far from the center of the spindle. The tricky job if to have it properly aligned to Z axis
[17:49:22] <CaptHindsight> anarchos2__: if it's parallel to the spindle and the offset doesn't change is another way of doing it
[17:50:47] <CaptHindsight> the camera just needs to find the position of what you want, if the camera doesn't move then you know that the center of the spindle is offset by whatever the distance/position is of the camera
[17:51:05] <anarchos2__> right, hmm
[17:51:39] <anarchos2__> but if the tool length changes (which mine do) then it might be tought to figure out, no?
[17:51:53] <CaptHindsight> well Z is another story
[17:52:46] <anarchos2__> would it be possible to take the tool offset and have the crosshairs on camview-emc change location, automagically?
[17:52:53] <anarchos2__> i'm sure some sort of math could figure it out
[17:53:22] <CaptHindsight> yes, it's already in the camview plugins but I have to write the howto
[17:53:29] <anarchos2__> oh i see
[17:53:39] <f1oat> I use a mount with a ball joint and fine adjustment screws for Z alignment. Look at http://blog.f1oat.org/tag/hd5000/
[17:53:51] <CaptHindsight> the info is currently scattered over a few pages
[17:54:17] <ssi> I have all those pages open in a browser in the hopes that one day I'll get around to doing it :P
[17:54:25] <anarchos2__> CaptHindsight, also, do you know if there's a debian compatable repo for camview-emc?
[17:54:29] <ssi> in fact, here
[17:54:29] <ssi> http://wiki.linuxcnc.org/cgi-bin/wiki.pl?Axis_Embed_Video
[17:54:32] <ssi> http://psha.org.ru/b/camview-emc.html
[17:54:35] <ssi> http://wiki.linuxcnc.org/cgi-bin/wiki.pl?Adding_Digital_Zoom_To_Camview-Emc
[17:54:38] <ssi> http://wiki.linuxcnc.org/cgi-bin/wiki.pl?Adding_Camview
[17:54:41] <ssi> lul
[17:55:00] <CaptHindsight> anarchos2__: there were for some version of debian, just not wheezy
[17:55:50] <anarchos2__> ah
[17:57:34] <anarchos2__> this is gonna be super cool once everything arrives :D
[17:57:40] <anarchos2__> my touch plate was shipped today
[17:57:53] <CaptHindsight> http://psha.org.ru/debian/README.html
[17:58:24] <anarchos2__> i wonder if i could add the squeeze repo
[17:58:43] <CaptHindsight> http://wiki.linuxcnc.org/cgi-bin/wiki.pl?Adding_Camview I only got this far on the new howto
[17:59:08] <CaptHindsight> please add any clear info to it :)
[18:02:45] <CaptHindsight> http://psha.org.ru/debian/dists/squeeze/
[18:03:41] <anarchos2__> python-camunits : Depends: python (< 2.7) but 2.7.3-4+deb7u1 is installed.
[18:04:06] <anarchos2__> camunits-plugins-emc-misc : Depends: libcv2.1 which is a virtual package.
[18:04:06] <anarchos2__> Depends: libfreeimage3 (>= 3.10.0) but it is not going to be installed.
[18:04:14] <anarchos2__> when i add the squeeze repo :(
[18:04:21] <CaptHindsight> yes, it needs some help
[18:05:03] <CaptHindsight> I'm not sure where is source is
[18:05:38] <CaptHindsight> he made some changes to the camunits sources
[18:05:43] <Rab> Anybody have a preferred camera for Camview?
[18:06:04] <CaptHindsight> I tried several
[18:06:09] <awyea> @CaptHindsight sorry got unexpectedly called away for longer than I thought here is the link http://www.ebay.com/itm/Upgraded-5-Axis-CNC-Breakout-Board-for-Stepper-Motor-Driver-Mach3-USB-Cable-/310702269807?pt=LH_DefaultDomain_0&hash=item48574c656f
[18:06:23] <CaptHindsight> Rab: it depends on your needs
[18:07:14] <anarchos2__> i'd like to be able to touch off X and Y with the camera
[18:07:14] <CaptHindsight> awyea: I have that one on my desk in front of me
[18:07:34] <Rab> CaptHindsight, I mainly just want to monitor the tool. A friend of mine is writing software to do Z-axis touchoff with OpenCV which seems pretty neat.
[18:07:36] <anarchos2__> and then Z with my touch plate combined with measuring the height of the workpiece beforehand (i think that how it works)
[18:07:49] <anarchos2__> for a zero-touch touch off routine
[18:11:08] <Rab> anarchos2__, here's the software I was talking about...has nothing to do with LinuxCNC though. https://github.com/jerkey/homer
[18:12:54] <Rab> I'm not convinced camera focus is precise enough for decent touch-off in the Z plane. But I'm interested to see others' experiments.
[18:16:22] <CaptHindsight> Rab: you'd have to define "precise enough" it's easily within a few mm :)
[18:18:23] <anarchos2__> i wonder if you could use one of those macro lense addons for phone cameras
[18:18:25] <Rab> I was thinking a few mils.
[18:18:27] <CaptHindsight> awyea: I haven't gone through that BOB yet, it has two 5V DC connections for common anode optos or one GND for common cathode
[18:18:27] <anarchos2__> and get reeeeeal close
[18:18:42] <Rab> CaptHindsight, which camera do you like?
[18:20:30] <CaptHindsight> Rab: it depends on the res you want, the closer the camera to work surface the better the res
[18:20:43] <asah> anyone around versed in 3 phase power electronics who can give me some advice on my retrofit plans?
[18:20:45] <asah> https://www.dropbox.com/s/dhbf7glecef1vya/MAHO-400E_RETRO_083014.pdf?dl=0
[18:20:55] <CaptHindsight> I even tried some $5 VGA usb cams
[18:21:16] <asah> I am wondering if I should even bother with the contactor in front of the spindle and hydro VFDs
[18:21:36] <asah> I could just have a manual switch / breaker there.
[18:21:58] <asah> as the VFDs would be handling “on” and “off” and would be spinning up the respective motors.
[18:23:08] <asah> those contactors could be wired into the safety system, which is an argument to have them there I suppose.
[18:23:53] <asah> though I could just do one single main contactor for all 380 power, from which they all feed.
[18:23:54] <CaptHindsight> Rab: http://www.ebay.com/itm/200X-Portable-USB-2-0-Digital-4-LED-Endoscope-For-Circuit-Board-Preschool-/291170901602 these are only VGA but easy to mount
[18:24:34] <Rab> CaptHindsight, thanks!
[18:25:23] <anarchos2__> ooh that looks nice
[18:25:30] <CaptHindsight> Rab: http://www.logitech.com/en-us/product/hd-webcam-c270 was also easy to use and the lens is easy to modify for up close
[18:25:52] <Rab> I'm hoping to mount something inside the dust shoe. A tubular/lipstick-style cam could go through a diagonal hole in the top, though.
[18:26:38] <Rab> Yeah, the C270 seems to be favored for good performance under Linux.
[18:27:22] <CaptHindsight> http://www.logitech.com/en-us/product/hd-webcam-c310?crid=34 these were on sale for ~$30
[18:27:49] <anarchos2__> http://www.aliexpress.com/item/Free-shipping-Dia-7mm-5m-USB-Endoscope-Inspection-Camera-6LED-IP66-Waterproof-Mini-PC-Camera-Side/964170287.html
[18:27:53] <anarchos2__> that looks pretty nice
[18:28:12] <anarchos2__> waterproof, TINY, 720P...
[18:28:48] <Rab> I have a similar endoscope camera I got off eBay. Framerate under Linux is terrible, and the picture isn't very good either.
[18:29:00] <Rab> It's usable for fishing cables in walls, etc.
[18:29:12] <CaptHindsight> http://www.ebay.com/itm/USB-6-LED-1-3M-Clip-WebCam-Web-Camera-w-Microphone-MIC-/330616795036 with led's also worked but it was only VGA at best
[18:29:52] <CaptHindsight> I didn't have to open the case to get the lens to focus <1" away
[18:30:31] <anarchos2__> http://usbfever.com/index.php?main_page=product_info&cPath=251_259&products_id=196
[18:30:48] <anarchos2__> maybe one of these attached to a webcam might be good
[18:31:26] <anarchos2__> says it focuses between 10 and 23mm, so you could get really close up
[18:32:40] <CaptHindsight> it depends on what actual res, speed and reliability you need
[18:33:18] <CaptHindsight> we have also used $20K zoom microscopes to get down to a few microns per pixel
[18:33:45] <anarchos2__> wow
[18:34:00] <CaptHindsight> and also you budget :)
[18:34:08] <CaptHindsight> you/your
[18:34:20] <anarchos2__> http://www.adafruit.com/products/636
[18:34:55] <CaptHindsight> somebody here got one of those, worked fine
[18:35:28] <anarchos2__> cool
[18:37:55] <CaptHindsight> http://www.ebay.com/itm/NAVITAR-6000-II-ZOOM-LENS-INSPECTION-SYSTEM-SONY-COLOR-CAMERA-MONITOR-/351149378104 something like this gets you a better pic with higher frame rate and from a farther distance
[18:38:04] <CaptHindsight> but also at much higher cost
[18:40:25] <anarchos2__> yea
[19:17:53] <CaptHindsight> asah: is there an e-stop or kill input on the VFD's?
[19:24:45] <asah> yes there is.
[20:22:36] <anarchos2__> hah, almost bought a webcam at the reuse it centre (a used goods for charity store) $3
[20:22:43] <anarchos2__> brand new, in the box logitech
[20:23:17] <anarchos2__> then i noticed it had 320x240 resolution video, and only 640x480 stills
[20:33:51] <SpeedEvil> yeah - today you can get from china a 5MP webcam for $3
[20:34:03] <SpeedEvil> that has 320*240 video and 640*480 stills
[20:36:39] <anarchos2__> it wasn't the money, just the fact i'd inevetably buy a better camera soon after, and that one going into the trash (or back to the store)
[20:36:48] <CaptHindsight> the way it was explained to me is that the software is capable of 5MP but the sensor is 640 x 480
[20:44:20] <anarchos2__> yeah
[20:45:06] <anarchos2__> i had a contour 1080p (a gopro competitor) and was talking to the contour guy when they had a booth set up here, and he told me the only difference between the 720p and 1080p model was they they upscaled
[20:45:09] <anarchos2__> same sensor, etc
[20:45:14] <anarchos2__> i demanded my money back :P
[20:50:04] <CaptHindsight> I'm waiting for the unlimited resolution cameras :)
[20:50:38] <anarchos2__> is there anything like thingverse.com geared towards cnc?
[20:51:10] <CaptHindsight> with parametric models of parts and assemblies?
[20:51:39] <anarchos2__> well i was just thinking of stuff that could be done with a 3 axis mill (or the ability to filter)
[20:51:54] <anarchos2__> most things on thingverse would be impossible with my mill (or even a 6 axis one)
[20:52:26] <CaptHindsight> http://www.3dcontentcentral.com
[20:56:04] <CaptHindsight> http://www.thingiverse.com/thing:335826 pretty sure you could make this on a 3 axis mill
[20:57:00] <Tom_itx> not sure why you would
[20:57:34] <CaptHindsight> forget to not shave for a few weeks, what then?
[20:59:19] <zq> do any of you use a jogwheel?
[20:59:38] <Tom_itx> yup
[21:00:00] <zq> i'm having a bit of trouble hooking mine up
[21:01:10] <anarchos2__> i have a joystick that i used...it's not so practical, though
[21:01:23] <Tom_itx> http://tom-itx.ddns01.com:81/~webpage/cnc/psu/control7.jpg
[21:01:32] <Tom_itx> my pendant is sitting next to the control box there
[21:02:33] <Tom_itx> http://tom-itx.ddns01.com:81/~webpage/cnc/configs/sherline/
[21:02:36] <Tom_itx> the config is there
[21:02:49] <zq> very nice
[21:02:50] <Tom_itx> my_jog.hal has most of it
[21:02:57] <Tom_itx> some in the ini
[21:03:05] <Tom_itx> some may be in teh sherline.hal
[21:03:53] <Tom_itx> http://tom-itx.ddns01.com:81/~webpage/cnc/pendant/pendant1.jpg
[21:11:04] <anarchos2__> how do i set the default jog velocity?
[21:11:24] <anarchos2__> DEFAULT_VELOCITY = 0.3 in the [TRAJ] section?
[21:13:45] <Tom_itx> http://linuxcnc.org/docs/html/config/ini_config.html#sub:TRAJ-section
[21:15:28] <anarchos2__> hmm
[21:17:17] <anarchos2__> what's the difference between DEFAULT_VELOCITY in [TRAJ] and DEFAULT_LINEAR_VELOCITY from the [DISPLAY] section?
[21:18:08] <anarchos2__> one says "initial jog rate" and the other says "the default for linear jogs"
[21:18:24] <Tom_itx> is the display section for manual jogging?
[21:18:45] <Tom_itx> when in manual mode i should say
[21:19:03] <anarchos2__> If i set the [TRAJ] one it seems to do nothing, but the [DISPLAY] one works
[21:19:43] <Tom_itx> maybe individual axis parameters are overriding the one in [TRAJ]
[21:21:03] <Tom_itx> in that document, i don't see an option for DEFAULT_LINEAR_VELOCITY
[21:22:19] <anarchos2__> in the display section
[21:22:23] <anarchos2__> second block of text
[21:22:35] <anarchos2__> right under
[21:22:35] <anarchos2__> Note
[21:22:35] <anarchos2__> The following [DISPLAY] items are for the AXIS interface only.
[21:22:46] <anarchos2__> which might explain things :P
[21:23:03] <Tom_itx> ahh i didn't scroll far enough :)
[21:28:06] <roycroft> sweet
[21:28:16] <roycroft> ebay seller just refunded $30 in shipping charges on my order
[21:28:31] <roycroft> so the ball screws + bearing mounts came to $257 total, including shipping
[21:28:42] <anarchos2__> why'd he do that?
[21:28:44] <anarchos2__> ask nicely? :P
[21:28:48] <roycroft> yes
[21:28:51] <roycroft> it was a combined order
[21:28:52] <Tom_itx> combined shipping?
[21:28:55] <anarchos2__> ah
[21:29:05] <roycroft> and there was no automated way to handle it
[21:29:13] <roycroft> so i paid full price and asked nicely for a refund
[21:29:18] <anarchos2__> i emailed the guy who makes the belt drive kit for my mill and just asked for a discount and he said yes
[21:29:26] <zq> meh
[21:29:29] <roycroft> most ebay sellers are pretty decent folks
[21:29:31] <zq> i gave up and just used halui instead
[21:29:55] <roycroft> ebay's reputation feedback system weeds out the bad ones pretty well
[21:31:59] <anarchos2__> what kind of slides do "big name" cnc mill manufactures use?
[21:32:06] <anarchos2__> dovetails w/ gibs?
[21:32:36] <Tom_itx> box ways
[21:33:54] <anarchos2__> hmm
[21:35:05] <Tom_itx> http://www.cnccookbook.com/img/CNCCookbook/WayTypes.jpg
[21:35:48] <anarchos2__> cool, thanks
[21:40:34] <Tom_itx> http://www.practicalmachinist.com/vb/cnc-machining/box-ways-vs-ball-way-rails-236700/
[21:49:20] <anarchos2__> cool, thanks
[21:52:47] <anarchos2__> i'm dreaming of a mini mill sized mill made out of granite
[21:53:18] <roycroft> such things exist
[21:53:48] <roycroft> i also have seen an article where someone took a sieg mini-mill and filled all the voids with a granite epoxy
[21:54:04] <anarchos2__> yeah, that's what started me thinking about it.
[21:54:14] <LeelooMinai_> Is granite epoxy expensive?
[21:54:18] <anarchos2__> i figured why not make the base and column out of granite itself?
[21:54:39] <roycroft> you make it yourself, leeloominai_
[21:54:54] <LeelooMinai_> Well... from air? :)
[21:55:00] <roycroft> you get some epoxy
[21:55:03] <roycroft> and some granite
[21:55:06] <CaptHindsight> you can buy polyester resin for $35/gal at home depot, epoxy is ~$50/gal
[21:55:18] <roycroft> preferably in a fairly finely ground form
[21:55:22] <roycroft> and mix them together
[21:55:22] <anarchos2__> there's a 400+ page thread on CNCZone (i think) about epoxy granite
[21:55:43] <anarchos2__> would make sense for a large machine (or oddly shaped), but for a small one, why not use real granite?
[21:55:50] <CaptHindsight> the raw material for polyester or epoxy is ~$2-4/lb
[21:56:06] <roycroft> because it's really expensive, anarchos2__
[21:56:13] <LeelooMinai_> Hmm... I onced searched for epoxy on HomeDepot Canada, and could not find anything in big containers - only some tiny tubes of two-ingredient epoxy
[21:56:15] <roycroft> i've seen small mills made of granite
[21:56:19] <roycroft> well, seen ads for them
[21:56:32] <roycroft> i don't recall the details, but i do recally that they were very shiny and very expensive
[21:56:36] <anarchos2__> heh
[21:56:46] <anarchos2__> http://precisiongraniteusa.com/pdffiles/PGPRICELIST.pdf
[21:56:47] <roycroft> adding mass to a sieg with granit epoxy seems much more cost-effective
[21:57:04] <anarchos2__> even using this crazy precision ground granite it doesn't seem like it would be that expensive
[21:57:10] <anarchos2__> to build myself
[21:57:33] <anarchos2__> yes probably, but building one from scratch would be more fun :D
[21:57:45] <roycroft> especially if you used a cold chisel and a big hammer
[21:57:45] <LeelooMinai_> http://www.homedepot.ca/product/1-part-epoxy-acrylic-concrete-garage-floor-paint-slate-gray-379l/938962 <- that's not the epoxy you were talking about, right?
[21:57:46] <CaptHindsight> http://www.uscomposites.com/polyesters.html
[21:57:56] <CaptHindsight> http://www.uscomposites.com/epoxy.html
[21:58:01] <roycroft> you could spend a lot of time truing up the surfaces that way
[21:58:09] <roycroft> but you would feel really greek
[21:58:18] <roycroft> head out to the shop with a toga on
[21:58:25] <anarchos2__> lol
[21:58:27] <roycroft> and start carving your mill
[21:58:40] <CaptHindsight> LeelooMinai_: at home depot look for polyester resin by Elmers
[21:59:09] <LeelooMinai_> CaptHindsight: I think Canadian one does not have those items
[21:59:35] <CaptHindsight> or 3M
[22:00:00] <CaptHindsight> ahh Bondo brand
[22:00:13] <LeelooMinai_> resin and epoxy searches do not return anything that seems close
[22:01:50] <anarchos2__> a 24x48x6" piece that's precision ground to +/-.0003 is $778. Take that to a granite countertop place and have them slice it into 4 pieces of 12x24. Have them drill holes lengthway into two pieces 10" to sink in some expansion bolts, and drill two holes in the other two pieces
[22:02:00] <SpeedEvil> west system epoxy
[22:02:16] <SpeedEvil> google
[22:03:05] <anarchos2__> bolt together in an L, add some box ways or dovetails with a saddle
[22:03:22] <anarchos2__> for both X and Z, then just need to come up with a way to make a table :P
[22:03:32] <anarchos2__> easy as pie ;)
[22:04:08] <LeelooMinai> Yes, just use that expoxy and a dough roller
[22:04:55] <CaptHindsight> use plate glass for the bottom of the mold
[22:05:20] <CaptHindsight> cast t-slot right into it
[22:05:50] <LeelooMinai> Glass will still deform under weight - the end result probably won't be super-flat
[22:09:41] <CaptHindsight> http://www.walmart.com/ip/Bondo-Fiberglass-Resin/17130349
[22:10:25] <roycroft> i should think that the granite dust would be harder to come by than the epoxy resin
[22:10:45] <CaptHindsight> it seems to be getting harder to find, Loews stopped carrying it as well
[22:10:46] <roycroft> and it should not be too difficult to find granite dust
[22:10:53] <LeelooMinai> http://www.walmart.ca/en/ip/polyester-resin-1993/6000079183847 <- all that is in Canadian Walmart
[22:11:11] <LeelooMinai> Hmm, 1 litre only - not very economic
[22:11:59] <roycroft> i'd figure that for an sieg x3 maybe 2L for the base and 3-4L for the column?
[22:12:22] <roycroft> now you want a high percentage of granite in it
[22:12:28] <CaptHindsight> http://www.compositescanada.com/product-catalog/resins/category/201-polyester
[22:12:31] <roycroft> i haven't read that thread in ages
[22:12:36] <roycroft> but i'd figure at least 50% granit
[22:12:37] <roycroft> e
[22:12:57] <CaptHindsight> http://www.marineoutfitters.ca/index.cfm?category=10060|10155&product=25607547&code=FG%20Poly%20Resin%20U%2FW%204L
[22:13:07] <CaptHindsight> oh more like 80%
[22:13:11] <roycroft> oh
[22:13:14] <roycroft> ok
[22:13:26] <roycroft> so you'd really only need 1-2L of epoxy resin total
[22:14:54] <LeelooMinai> That west system resin is $100 + per gallon
[22:15:17] <LeelooMinai> I guess repairing a big boat is not cheap
[22:15:23] <roycroft> i built a stand for my x3 out of 1.5" square tubing, filled with concrete, and 1/2" plate on the top
[22:15:28] <roycroft> the mill is bolted down to that stand
[22:15:53] <roycroft> i figure the stand is about 250kg or so
[22:16:14] <roycroft> that adds a fair amount of rigidity to the mill
[22:17:29] <roycroft> the granite epoxy thing would help for sure
[22:17:48] <roycroft> but maybe i'd be better off replacing the mini-mill with a bridgeport or similar
[22:18:12] <CaptHindsight> http://www.hgrinc.com/buyOurs/inventoryItemDetail.do?inventory_num=03141101842&invName=GRANITE-SURFACE-PLATE
[22:18:32] <CaptHindsight> 24'' X 36'' X 4'' $129.99
[22:18:34] <roycroft> eventually one can get to the point of putting so much effort into improving small machinery that it makes more sense to step up to something bigger
[22:18:40] <roycroft> shipping = $160? :)
[22:19:05] <roycroft> i think i paid more for shipping than my surface plate cost
[22:19:31] <CaptHindsight> yeah, I get mine local
[22:19:50] <roycroft> i got a small one off cl
[22:19:55] <roycroft> 12x18
[22:20:02] <roycroft> it's a starrett
[22:20:04] <roycroft> and it was $40
[22:20:32] <roycroft> some guy got it at a storage unit auction
[22:20:45] <roycroft> he thought it was too heavy to take home, so he posted it on cl while he was still at the auction
[22:21:07] <roycroft> and the auction was about 5 minutes from my house
[22:22:39] <CaptHindsight> LeelooMinai: small quantities are pricey, I buy it by the drum for a few $/lb
[22:24:10] <LeelooMinai> Hmm... I just found that some company that makes granite plates, called Sowa, has headquarters in my city
[22:24:33] <LeelooMinai> http://sowa.treenodeonline.com/ProductLine/Precision%20Tools/46/1181/24094
[22:24:35] <roycroft> ask them for some granite dust!
[22:24:46] <LeelooMinai> I tiny one 9 by 12" is only $56
[22:25:15] <LeelooMinai> I will just wear fluffy clippers and visit them daily
[22:25:20] <LeelooMinai> slippers*
[22:26:19] <LeelooMinai> I could use a plate like this to calibrate my cnc
[22:26:28] <LeelooMinai> And align
[22:26:45] <CaptHindsight> that website must detect locations since my price for that plate is only $48
[22:27:07] <LeelooMinai> I have canadian flag displayed on top
[22:27:17] <anarchos2__> LeelooMinai, youre from kitchener?
[22:27:21] <LeelooMinai> Yes
[22:27:40] <CaptHindsight> and when you're dome with it they make great headstones
[22:27:42] <anarchos2__> i grew up in Rockwood
[22:27:54] <anarchos2__> which is on the other side of guelph. went to high school in guelph
[22:28:48] <LeelooMinai> Hmm, they have all sorts of stuff - I wonder if their name has Polish origin, because in Polish Sowa = An Owl:)
[22:47:39] <CaptHindsight> on trick to mounting things to a granite table is to drill out and epoxy set aluminum slugs into the holes, then drill and tap them for fasteners
[22:51:05] <CaptHindsight> http://www.q-sys.eu/images/mechanical%20bearing%205.jpg
[22:51:26] <LeelooMinai> ...
[22:52:06] <LeelooMinai> I wonder how they put that monolith into the room
[22:55:23] <roycroft> i'm sorry, dave, but i can't tell you how they did that
[22:55:37] <CaptHindsight> http://banoosh.com/wp-content/uploads/2014/05/arch29b.jpg
[23:22:55] <anarchos2__> hmm, there's some neat stuff going on with machinekit
[23:23:12] <anarchos2__> what does the collective wisdom of #linuxcnc think of it?
[23:28:27] <PetefromTn_andro> Evening folks
[23:30:43] <PetefromTn_andro> What's goin on in linuxcnc land tonight LOL
[23:32:01] <CaptHindsight> anarchos2__: it's mostly Linuxcnc
[23:35:26] <anarchos2__> remote hal seems to most exciting to me