#emc | Logs for 2010-12-10

[00:04:49] <theorb> theorb is now known as theorbtwo
[00:17:08] <Eric_K> EricKeller
[00:17:24] <Eric_K> sorry forgot the command first
[00:17:29] <Eric_K> Eric_K is now known as EricKeller
[00:28:20] <elmo40> ;)
[00:28:24] <elmo40> it happens
[00:28:48] <elmo40> people even add a space before they /msg NickServ identify *******
[00:29:24] <elmo40> emcrules: good evening.
[00:30:46] <atmega> someone has my normal nick registered. might have been me from years ago
[00:31:58] <elmo40> what is normal?
[00:32:07] <atmega> jdh
[00:32:16] <elmo40> I have two others that I have no idea what the passwrds are
[00:32:25] <atmega> do they ever release them?
[00:32:34] <atmega> this is lilo-net?
[00:32:37] <elmo40> maybe after 50 years :P
[00:32:42] <elmo40> freenode.net
[00:33:23] <atmega> same thing
[00:34:24] <elmo40> irc has a warm spot in my heart... I have been in a room for so long that even though half a world apart you still get to 'know' some of them. It was sad to hear one day that one of my online friends was in a bicycle accident :( Didn't make it.
[00:34:37] <emcrules> how are you all
[00:35:02] <atmega> elmo: someone other than lilo?
[00:35:07] <kb8wmc> doing well here emcrules
[00:35:13] <kb8wmc> how you?
[00:35:29] <elmo40> atmega: yes. other then lilo.
[00:35:46] <emcrules> not to shabby just cleaning the garage Damm mess!!!!
[00:35:54] <elmo40> in this cold?
[00:36:39] <emcrules> yep thank god for a heater
[00:36:49] <atmega> I've been on one channel since the early 90's, lots of changes
[00:37:01] <emcrules> electric of course
[00:37:14] <atmega> no fission heater?
[00:38:01] <atmega> linus even showed up a time or two back then
[00:38:26] <emcrules> maybe in 20 or so years
[00:39:59] <kb8wmc> I am celebrating today, a great day...enjoying even the miserable cold Michigan weather
[00:41:07] <emcrules> KB8: why is that?
[00:41:44] <kb8wmc> because it is a great day to be alive...and
[00:41:59] <kb8wmc> 42 years ago today Operation Meade River ended
[00:42:20] <kb8wmc> it was on my birthday, so I never ever forget
[00:42:34] <emcrules> funny mine was yesterday
[00:42:50] <emcrules> only 33 years ago
[00:42:52] <kb8wmc> I just wanted to share that bit of history with someone, anyone...
[00:42:56] <kb8wmc> rgr that
[00:43:16] <kb8wmc> happy belated to you emcrules
[00:43:34] <emcrules> thanks
[00:43:46] <emcrules> same to you
[00:43:47] <Valen> I do often wonder what'll happen if I ever kick the bucket
[00:43:55] <Valen> with regards all my online friends
[00:43:58] <kb8wmc> tnx
[00:45:27] <archivist> some groups archive and keep online passed users websites
[00:46:01] <emcrules> Thats a nice thought
[00:53:05] <Valen> the question is if my only contact with you guys is IRC, unless I tell my missus, nobody will tell anybody about it
[00:55:04] <kb8wmc> I belong to a group of older guys, and we have a telephone chain, if any thing happens to one of us...we have advised our children as to what to do and how to contact one of our group members
[00:56:20] <archivist> you live on in the irc logs!
[01:20:48] <atmega> I irc via screen(1), my session could outlive me.
[01:25:00] <spasticteapot> Anyone here know a good place to get a piece of stainless steel tube?
[01:25:20] <atmega> http://www.onlinemetals.com/
[01:26:26] <atmega> or ebay... there is a scrapyard/metal recycling place near here that sells stuff by the pound, sometimes you get lucky
[01:29:20] <jims_> Where are you, and what are you looking for?
[01:31:28] <juri_> i'm in the central US, and i'm looking for enough money to stop caring.
[01:31:53] <juri_> oh, wait, you weren't talking to me. *whistles innocently*
[01:32:02] <atmega> go work for walmart
[01:32:27] <juri_> I've already done a 2.5 year stent. no thanks.
[01:32:39] <atmega> whine about working for walmart?
[01:32:53] <atmega> err... I didn't say that out loud did I?
[01:32:56] <juri_> done plenty of that, too. :)
[01:33:21] <atmega> leave god forsaken arkansas
[01:33:54] <jims_> Did the health insurance at Walmart pay for that stent?
[01:34:55] <juri_> health insurance? walmart?
[01:35:06] <jims_> oh he meant stint.
[01:35:15] <atmega> or she
[01:38:40] <atmega> unless, perhaps, there are two juri's
[02:16:22] <spasticteapot_> spasticteapot_ is now known as spasticteapot
[03:00:10] <spasticteapot_> spasticteapot_ is now known as spasticteapot
[03:11:45] <elmo40> on the topic of communicating with IRC folks about them passing... I have a script that will auto send an email to a few other relatives when I pass that gives all the info on what rooms I 'belong' to and other online niceties and inform them what has happened. Just a nice gesture I guess.
[04:03:50] <elmo40> tell me this wouldn't be a pain to convert to CNC http://www.gcsurplus.ca/webrics/ros/images/FS69986-1-17-11-2010-03-12-55-2.JPG
[07:54:14] <oem> oem is now known as UncleG
[07:54:56] <UncleG> Anyone familiar with barloaders on CNC lathes?
[08:42:01] <UncleG> The question would be, is there a 3 jaw chuck which can be manipulated like a collet. You would adjust to desired size and then tight a set screw and the chuck would act as a collet for automatic loading.
[08:42:32] <UncleG> Anyone seen one of these gems?
[08:46:14] <archivist> I have seen the parts from a swiss auto which bar feeds but not a cnc one up close
[08:46:42] <UncleG> Well, it's actually for an B60 Index-Werke
[08:47:05] <archivist> the auto I have here is a single size collet with a closer mechanism
[08:47:23] <UncleG> which of course as barloader already, but it uses collets... which are costly
[08:47:33] <UncleG> aye~
[08:48:27] <UncleG> I think I could make one, I think it may be easiest to modify one to suit my needs
[08:49:25] <archivist> but bar feeds for capstan types are relatively crude, just a pusher
[08:50:54] <archivist> or get a cnc barfeed off fleabay
[08:55:02] <archivist> that is a swiss auto is it not?, the one here had a weighted pusher, one bar at a time
[08:58:22] <archivist> just basicly a slotted tube the pusher is guided by the tube the weight pulls on a plate passing through the slot, internal cone on the pusher to centralise the spinning bar
[08:58:46] <sebastian> hello
[08:58:47] <the_wench> hello sebastian, you have a question?
[08:58:57] <sebastian> yes :)
[08:59:20] <sebastian> i've configured a gantry system
[08:59:36] <sebastian> but moving manually is not working with axis
[09:00:38] <sebastian> what could i've done wrong?
[09:00:55] <Valen> your computer isnt turned on
[09:01:43] <archivist> you have not enabled it and got out of estop
[09:02:27] <sebastian> if i want to move by left arrowkey, only the X axis is moving
[09:03:18] <Valen> perhaps being a bit more descriptive might help
[09:05:32] <sebastian> i've made this "setp gantrykins.joint-6 0"
[09:06:07] <sebastian> so that the sixth is equal the zero
[09:06:14] <sebastian> X = U
[09:06:47] <sebastian> homing works great
[09:06:53] <sebastian> mdi works too
[09:14:33] <sebastian> any idea?
[09:16:10] <Valen> you haven't really described what is wrong
[09:16:13] <Valen> and what is happening
[09:18:40] <sebastian> i've made a gantry system
[09:19:12] <sebastian> where U and X should do the same
[09:20:06] <sebastian> because it's physically the same axis, but has 2 different motors on each side
[09:20:11] <sebastian> you know?
[09:20:44] <sebastian> sry my english is not the best
[09:21:02] <Valen> yeah ok now its making some more sense
[09:21:24] <sebastian> homing works great and mdi_commands too
[09:21:24] <Valen> I haven't had much experience with gantry systems
[09:21:53] <Valen> so basically its all working, but when you attempt to "jog" the machine only one of the motors is turning
[09:22:04] <sebastian> yes
[09:22:45] <sebastian> i think axis does not support gantry systems
[09:23:08] <Valen> you can try it with one of the other interfaces but it doesn't sound like it would change much
[09:23:17] <Valen> I believe that your problem is solvable
[09:23:36] <Valen> I have only heard of gantry's being set up with both motors set as being the same axis, but i believe the kins thing your using may work differently
[09:24:11] <Valen> the problem is when you jog the axis its only increasing X, I'm not sure why that's not going through to the kins module, thats where I would be looking perhaps
[09:24:37] <archivist> gantrykins iirc
[09:25:10] <Valen> yeah thats outside my knowlage
[09:25:27] <sebastian> ok thanks
[09:25:46] <Valen> just having a look now
[09:25:58] <archivist> I have never done a gantry system either, just remember the odd fact :)
[09:26:31] <Valen> http://www.linuxcnc.org/component/option,com_kunena/Itemid,20/func,view/catid,10/id,4163/lang,english/ might give you some info perhaps
[09:28:57] <Valen> you need to toggle between joint mode and axis mode i believe
[09:29:01] <Valen> http://www.mail-archive.com/emc-users@lists.sourceforge.net/msg20221.html
[10:39:04] <psha> logger_emc: bookmark
[10:39:04] <psha> Just this once .. here's the log: http://www.linuxcnc.org/irc/irc.freenode.net:6667/emc/2010-12-10.txt
[10:57:34] <Valen> http://www.graysonline.com/lot/0026-56955/engineering-and-toolmaking/vertical-milling-machine-bridgeport-type-br2j2-series-1-2hp-machine-no
[10:57:39] <Valen> ok I might just have to get that
[11:00:35] <Valen> what do you guys think?
[11:05:13] <archivist> toy :)
[11:09:43] <Valen> well yeah
[11:09:51] <Valen> its not a 32Kw aluminium spraying monster
[11:09:53] <Valen> but still
[11:10:04] <Valen> its the first bridgeport I've seen for sale in australia ;->
[11:15:41] <jthornton> I have a series 1 1 1/2hp bp with an Anilam CNC conversion on it
[11:17:01] <jthornton_> http://e.newegg.com/servlet/cc6?gLmkQWWDQSWRVrLlTYAxkLuhQgLlVaVTYVXLX
[11:24:55] <jthornton> what is GST?
[11:25:45] <Valen> 10%
[11:25:52] <Valen> goods and services tax
[11:25:57] <Valen> VAT in the UK
[11:35:07] <Valen> that is really rather cheap
[11:39:45] <Valen> the computer thing
[11:41:45] <jthornton> $50 cheaper than the one I bought a week ago
[11:42:39] <jthornton> I did buy a different case/ps
[14:05:55] <JT-Shop_> JT-Shop_ is now known as JT-Shop
[15:13:44] <Jymmm> alex_joni: You have a link to the encoder you used for your radio, and is it "indented" so you feel it hitting notches as it's being turned?
[15:16:22] <Jymmm> alex_joni: err I mean detents
[15:21:15] <SWPadnos> cool: http://lgrws01.grayhill.com/web1/images/ProductImages/Opt_Encoder_60C.pdf
[15:21:32] <kb8wmc> good day to all
[15:21:40] <skunkworks> Good day
[15:27:07] <alex_joni> Jymmm: like I said I used a mechanical quadrature switch (cheap one)
[15:27:14] <alex_joni> and it does have detents (from the switches)
[15:27:22] <alex_joni> it should be 2-3$ or so
[16:49:20] <atmega> anyone know where I can source a nema 34 50:1 gearbox?
[16:50:48] <JT-Shop> I get mine from Fluid Power but I can't remember what brand they are atm
[16:51:13] <JT-Shop> I can ask if you like
[16:51:51] <atmega> fpeinc.com?
[16:53:30] <JT-Shop> I just call, I have them on my cell phone
[16:53:58] <JT-Shop> http://www.fluidpowersales.com/site.asp
[16:54:48] <JT-Shop> may not be the correct one
[16:55:24] <JT-Shop> this one http://www.fpeinc.com/
[16:56:22] <JT-Shop> anyway I can call and ask if you like
[17:20:33] <rizo> Hello
[17:20:33] <the_wench> hello rizo, you have a question?
[17:21:49] <rizo> I am reading the emc hal documentation. It says "A kinematics module is implemented as a HAL component, and is permitted to export pins and parameters. It consists of several “C” functions (as opposed to HAL functions)".
[17:22:03] <rizo> Why opposed to HAL functions?
[17:22:20] <rizo> Arent hal functions also written in C?
[17:24:14] <cradek> the functions in a kins module aren't added to hal threads or called by hal; they are called by emc's motion controller.
[17:26:08] <rizo> Ok, but every hal component probably also consists of seceral C functions?
[17:26:13] <rizo> Ok, but every hal component probably also consists of several C functions?
[17:26:43] <SWPadnos> HAL components export functions that can be added to HAL threads
[17:27:11] <SWPadnos> those functions have a specific pair of arguments, and will only be executed if attached to a thread
[17:27:41] <SWPadnos> other than that kind of difference, yes, both kinematics modules and HAL modules consist of C code, including C functions
[17:28:24] <rizo> ok, thank you :)
[17:30:34] <SWPadnos> the other thing that's different about a kinematics module is that the functions it provides are exported to the kernel, and are "linked" to the motion controller calls to those functions
[17:31:09] <SWPadnos> this linking is automatic, in the same way that a read function might be provided by a decide driver
[17:31:27] <atmega> ipad?
[17:31:55] <SWPadnos> I don't know if HAL functions are exported to the kernel, but I do know that they are never called unless specifically added to a HAL thread
[17:32:11] <SWPadnos> atmega, no thanks, unless you have a spare kicking around
[17:33:37] <atmega> decide driver?
[18:13:55] <cradek> atmega: are you feeling ok?
[18:14:55] <atmega> mostly... I do tend to suffer from wrong-window-itis though
[18:15:06] <cradek> oh I see
[18:15:13] <cradek> that goes around
[18:15:29] <atmega> and parker seems to have a 4 week lead time for 50:1 nema34 gearboxes
[19:06:04] <cradek> http://i15.photobucket.com/albums/a376/jdspear/machinery%20at%20home/frankenmill/DSC00438.jpg
[19:14:00] <ries__> ries__ is now known as ries
[19:29:59] <skunkworks> how do you get rid of steady state error while moving?
[19:30:15] <cradek> velocity mode?
[19:30:36] <cradek> frob the tach gain or FF1
[19:31:24] <skunkworks> yes
[19:31:25] <skunkworks> ok
[19:33:52] <skunkworks> look at that.
[19:33:56] <skunkworks> neat
[19:37:39] <skunkworks> http://imagebin.ca/img/W9djKuh.png
[19:37:57] <skunkworks> .1 move - cruise at 23ipm
[19:39:06] <skunkworks> * skunkworks doesn't really know what he is doing...
[19:39:06] <skunkworks> :)
[19:44:19] <juri_> knowing what you're doing is for people who play things safe too often. ;)
[20:13:32] <cradek> skunkworks: bzzzzzzzzzzz
[20:13:53] <skunkworks> what helps that?
[20:14:25] <cradek> maybe try messing with D - too high or too low can both do it
[20:14:55] <cradek> funny that it goes away while moving. could there be a loose motor coupling or something?
[20:15:18] <skunkworks> belt?
[20:15:27] <skunkworks> have to check
[20:15:46] <cradek> could be loose? dunno if that would do it, but something seems a bit weird.
[20:16:46] <cradek> it's real oscillation - many counts - it's not just dithering
[20:17:25] <cradek> I'm guessing you can go MUCH higher on your P gain, and that will make it a lot less sloppy looking
[20:17:53] <cradek> bbl
[20:32:27] <ries__> ries__ is now known as ries
[20:50:10] <Guest666> Guest666 is now known as micges
[20:54:47] <tom3p> what tools did Michael Haberler use for the gladeVCP demos on Youtube? I've used 'recordmydesktop' but dont have the pretty transparent balloon tips.
[20:55:27] <tom3p> like this http://www.youtube.com/watch?v=Z5_F-rW2cL8
[20:56:02] <davec_> davec_ is now known as Guest71180
[20:56:37] <tom3p> btw newer youtube files are mp4 and i used latest git to grab 'em https://github.com/rg3/youtube-dl/raw/2010.12.09/youtube-dl
[21:20:47] <Jymmm> http://www.infinigi.com/morningstar-sk12-sunkeeper-12a-solar-charge-contoller-12v-p-2756.html?ref=100
[21:20:50] <Tired_2> http://www.youtube.com/watch?v=QKhI5PcMtsc <- first real motion with EMC2. Thanks for making a sweet project
[21:24:01] <Jymmm> SWPadnos: cradek jepler http://tim.cexx.org/?p=633
[21:25:24] <SWPadnos> funny
[21:25:49] <Jymmm> SWPadnos: The details below are killer
[21:26:09] <Jymmm> how to achieve the gcode for the desired notes
[21:27:57] <SWPadnos> oh. it's tedious but conceptually easy
[21:28:56] <Jymmm> It be cool if I could get the laser to produce music AND at the same time create something theme releated to the music
[21:29:27] <SWPadnos> with suitably settable laser power, you might be able to do that
[21:29:35] <SWPadnos> but it would only be 2-note polyphonic :)
[21:29:51] <Jymmm> I forget about that =)
[21:30:08] <Jymmm> well, I do have Z, but that would be interesting
[21:30:41] <Jymmm> Especially since Z is only automated controlled via serial port
[21:31:49] <SWPadnos> ok, back to my mothers computer and the CUDA install
[21:32:02] <Jymmm> SWPadnos: Heh, maybe I could toss in control of the blower too for those lower notes
[21:35:54] <Tired_2> tom3p, Those might be added in post with youtube
[21:36:02] <Tired_2> I know you can add annotations
[21:36:07] <Tired_2> not sure why styles it supports though
[21:46:21] <Jymmm> Jymmm is now known as Red70sShow
[21:46:25] <Red70sShow> Red70sShow is now known as Jymmm
[22:20:04] <tom3p> Tired_2, thanks
[22:29:59] <mhaberler_> mhaberler_ is now known as mhaberler
[22:42:54] <JT-Shop_> JT-Shop_ is now known as JT-Shop
[22:50:25] <L84Supper> anyone have a cheap source for 50-100W CO2 laser tubes?
[22:51:40] <SWPadnos> I guess this doesn't qualify: http://www.parallax-tech.com/prices.htm
[22:54:48] <Jymmm> http://www.kickstarter.com/projects/421256045/diy-desktop-cnc-machine
[22:58:06] <L84Supper> 40W tubes on fleabay for $140
[23:05:09] <L84Supper> Parallax Industrial CO2 Laser Tubes are about a pricey as I can find :) http://www.lightobject.com/100W-CO2-Sealed-Laser-Tube-P119.aspx is more like it
[23:29:01] <JT-Shop> anyone seen Andy Pugh lately?
[23:35:50] <skunkworks> really helped to turn the current limit up on all the amps now. ;)
[23:41:11] <JT-Shop> we don't need no stinking limits... if you can't crank them yank them :)
[23:41:30] <skunkworks> we had them turned way down for testing
[23:42:35] <skunkworks> following error is <.0002
[23:42:47] <JT-Shop> wise move I'd say
[23:42:58] <JT-Shop> that is real good
[23:43:09] <JT-Shop> is that at rapid speeds?
[23:44:01] <skunkworks> I think it is a bit higher - but not much
[23:44:07] <skunkworks> that was at 50ipm
[23:44:27] <skunkworks> and the error is only at acc/decel
[23:44:34] <skunkworks> (little spike)
[23:45:02] <JT-Shop> nice
[23:45:15] <JT-Shop> your moving a hunk of iron too
[23:45:57] <skunkworks> it is all on roller bearings - I think that helps a lot
[23:46:18] <JT-Shop> I remember that
[23:46:19] <skunkworks> I don't have accelleration way up though.
[23:46:42] <JT-Shop> getting close to making some chips?
[23:46:58] <skunkworks> made some. but yes. Itching :)
[23:47:10] <skunkworks> how did the concrete go?
[23:47:19] <JT-Shop> I bet, how long have you been working on it?
[23:47:53] <JT-Shop> a bust today, the footer was still too green to fasten the forms to so he will be back Wednesday to try again
[23:47:58] <skunkworks> years. but really focused over the last year or so. (only working on it about once a week)'
[23:48:22] <Jymmm> JT-Shop: toss bags of charcoal in there and light em up!
[23:48:33] <Jymmm> JT-Shop: Bet it won't be green by wed =)
[23:48:48] <skunkworks> supposed to get a foot or more of snow tomorrow
[23:49:08] <JT-Shop> it's all ready hard enough but the light went away and so did the concrete guys :P
[23:49:24] <JT-Shop> we are getting some rain
[23:49:28] <Jymmm> I've seen them unthaw 4ft of frozen ground that way
[23:49:48] <JT-Shop> unthaw?
[23:51:02] <Jymmm> Yep, just layed out bags of charcoal briquets in a row, lit em up, then covered them with 2ft wide sheet metal. Next day they could bring in the tractor to dig up the pipeline
[23:51:40] <JT-Shop> sounds like more fun than I had digging the footer yesterday
[23:51:58] <Jymmm> JT-Shop: but you were playing in mud not snow, no?
[23:52:40] <JT-Shop> hard packed frozen rock infested clay rock... did I mention rocks!
[23:53:14] <JT-Shop> I need to get the photos developed