#emc | Logs for 2009-07-14

[00:01:55] <mozmck> A guy on the forum is reporting that he gets this when trying to boot with the rtai kernel on hardy:
[00:02:02] <mozmck> udevd-event[1282]: run_program: '/sbin/modprobe' abnormal exit
[00:02:10] <mozmck> anyone see that before?
[00:02:40] <toastydeath> wow
[00:04:42] <mozmck> hmm, looks like he got it to boot, but is having other problems: http://www.linuxcnc.org/component/option,com_kunena/Itemid,20/func,view/catid,9/id,526/lang,en/#528
[00:13:15] <jepler> that message makes it look like the device containing his root filesystem isn't supported by the rtai kernel. it may not be easy (or even possible) to fix.
[00:15:36] <cradek> yuck
[00:16:06] <cradek> if he's on sata maybe he could try pata, or the other way around
[00:16:11] <cradek> or a different computer
[00:50:03] <eric_unterhausen> I'm really impressed by my baldor servo motors
[00:50:15] <eric_unterhausen> been trying to demagnitize one for months now, can't do it
[01:38:18] <gwc_> hello?
[01:38:24] <gwc_> i have an question
[01:41:20] <geo01005_home__> go ahead and ask, I don't know if I will have an answer, but others might.
[01:44:09] <gwc_> thanks
[01:44:25] <gwc_> where can I get the kernel source for the rtai-patched kernel that comes with the emc live cd?
[01:46:23] <geo01005_home__> https://www.rtai.org/ ??
[01:47:05] <geo01005_home__> is that was you are looking for?
[01:49:22] <gwc_> no...
[01:49:43] <gwc_> the patched linux source
[01:49:54] <gwc_> i installed the livecd
[01:50:11] <geo01005_home__> what are you trying to do?
[01:50:41] <gwc_> i'm trying to install a data acquisition driver (called comedi)
[01:51:03] <gwc_> that requires the source of the currently running kernel to install
[01:51:53] <mozmck> you need the linux-headers package. It should have the same version number as your kernel
[01:52:15] <gwc_> yeah i have the headers installed
[01:52:49] <gwc_> so i have the package linux-headers-2.6.24-16-rtai installed
[01:53:23] <gwc_> but i'm looking for a hypothetical package linux-source-2.6.24-rtai
[01:53:40] <gwc_> there exists a linux-source-2.6.24 package
[01:53:56] <DaViruz> http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?RtaiSteps
[01:54:07] <DaViruz> on how to patch the vanilla kernel sources with rtai
[01:54:21] <mozmck> I see. I think what you need might be here: http://linuxcnc.org/hardy/dists/hardy/base/source/
[01:54:55] <DaViruz> oh
[01:55:13] <gwc_> yeah i think the latter is what i want
[01:55:15] <gwc_> thanks!
[01:55:44] <mozmck> you're welcome!
[02:00:34] <gwc_> hey another quick question
[02:00:49] <gwc_> there's a couple files which look almost the same
[02:00:58] <gwc_> linux_2.6.24-16.30.linuxcnc.4.tar.gz
[02:01:04] <gwc_> linux_2.6.24-16.30.linuxcnc.3.tar.gz
[02:01:09] <gwc_> linux_2.6.24-16.30.linuxcnc.2.tar.gz
[02:01:14] <gwc_> linux_2.6.24-16.30.linuxcnc.1.tar.gz
[02:01:22] <gwc_> which one do I want?
[02:02:00] <mozmck> :) I don't know! The size on number 2 looks awfully large...
[02:02:18] <gwc_> yeah
[02:02:44] <gwc_> ok i'll just try the one with the 4 since that's the highest number
[02:03:16] <mozmck> that would be my first try...
[08:22:15] <micges1> micges1 is now known as micges_plasma
[09:50:20] <piasdom> g'mornin all
[09:51:32] <micges1> micges1 is now known as micges
[11:51:57] <Valen> dialup sucks far more than i rember it
[11:53:42] <BigJohnT> when I create a local branch there is an option "Update Existing Branch: No, Fast Forward Only, and Reset" What does that mean?
[11:54:26] <BigJohnT> in git
[12:47:39] <jepler> bjt-plasma: I'm not familiar with that message.
[12:48:03] <bjt-plasma> it is in git gui
[12:51:13] <mozmck> do you have changes you haven't commited?
[12:52:04] <bjt-plasma> for docs?
[12:53:05] <mozmck> for anything. I'm wondering if there are changes in your working directory and git want's to know what to do with them?
[12:53:32] <mozmck> i don't know though...
[12:53:33] <bjt-plasma> let me look
[12:54:32] <bjt-plasma> I don't see any
[12:55:01] <bjt-plasma> mozmck: this was from a window to create a new branch from git gui
[12:56:08] <jepler> I can tell you this much: that option is shown regardless of whether you have local changes
[12:56:48] <mozmck> I see. just a thought.
[12:58:06] <jepler> I can't figure out what it does, though. It doesn't seem to correspond to any of the flavors of 'git branch'.
[12:58:57] <bjt-plasma> I just left it at the default setting when I created the local branch
[13:12:19] <bjt-plasma> the git stash is for when I'm working on something on master but not ready to commit it but want to pull?
[13:18:59] <bjt-plasma> * bjt-plasma is off to work
[13:25:48] <steves_logging> steves_logging is now known as steve_stallings
[15:04:55] <steve_stallings> steve_stallings is now known as steves_logging
[15:14:30] <natetherobot> hi, i have a question. i recently bought the HobbyCNC EZ Driver kit from HobbyCNC and got it working. When i go to test the motors useing the setup wizard in EMC, the motors work fine. When i go to run a g-code program in the actual program, the motors do nothing. Please Help!
[15:18:06] <natetherobot> Hi, I bought the HCNC EZ Driver Board and got it put together. When I go to set the controller up in EMC (using the wizard), the motors turn when I test them, but when I try to run a g-code program, the motors do nothing. The only thing I get from them is the ocasional twitch and they make the noise like they normally would. Please help.
[15:20:39] <archivist> acceleration set too fast
[15:31:45] <skunkworks639> natetherobot: what version of emc are you running?
[15:45:19] <frallzor> ah now I figured out E-stop
[16:35:02] <skunkworks639> archivist: http://www.cnczone.com/forums/showthread.php?t=85699
[16:37:00] <archivist> hmm going for solid :)... but mach3 ugh
[16:37:11] <skunkworks639> yah :(
[16:41:16] <skunkworks639> look again - he just posted some more pictures
[16:42:37] <archivist> his rotary looks serious
[17:15:19] <Spida> archivist: whats the problem with mach3?
[17:15:31] <Spida> apart from windows....
[17:16:03] <SWPadnos> it's pretty stupid to use it for servos, since it has no way of using feedback
[17:17:04] <SWPadnos> and for 4-axis work, it has no kinematics, so it can only use G-code which is explicitly made for the machine on which it will be run
[17:18:02] <skunkworks639> someone wouldn't want to write an enformed reply would they? http://www.cnczone.com/forums/showthread.php?p=638462#post638462
[17:21:14] <skunkworks639> plus emc can do rigid tapping :)
[17:22:33] <skunkworks639> The thing that people seem to complain the most about emc over mach is a). no screen editor b). emc is hard to setup. 3). It is linux and linux is complicated.
[17:22:55] <skunkworks639> b and 3 are just people being lazy ;)
[17:23:09] <archivist> mach3 needs an addon box for anything like realtime and the one being made has problems, so a little birdy tells me
[17:23:16] <seb_kuzminsky> a is lazy too, that's why jesus invented python ;-)
[17:25:11] <skunkworks639> :)
[17:25:20] <SWPadnos> hmmm
[17:25:47] <SWPadnos> it's not an informed response, but I'm pretty sure the existing hexapod kins can't deal with a variax-type machine
[17:26:10] <skunkworks639> SWPadnos: but a new kins could be created.. I assume.
[17:26:17] <SWPadnos> there are 6 attachment points on the top and bottom, so it's overconstrained
[17:26:21] <skunkworks639> if someone wanted to do the math
[17:26:27] <SWPadnos> sure, G&L made one, so the problems must be solvable
[17:27:05] <alex_joni> vismach? http://www.youtube.com/watch?v=eZlcTSFW2ds
[17:27:21] <seb_kuzminsky> hi alex_joni, how's your kid?
[17:28:17] <alex_joni> small :D
[17:28:28] <seb_kuzminsky> teach him C yet? :-P
[17:28:41] <archivist> A first!
[17:29:06] <alex_joni> heh
[17:29:16] <alex_joni> we'll start with BASIC :P
[17:29:26] <seb_kuzminsky> that borders on child abuse ;-)
[17:30:40] <Spida> lol
[17:34:22] <SWPadnos> the variax is a cool machine: http://www.youtube.com/watch?v=7TowJZQi-qY
[17:36:32] <archivist> I wonder about the energy expended lifting the top half
[17:41:13] <Jymmm> s/basic/python/ then he can customize emc for you
[17:41:52] <SWPadnos> alex_joni, looks like Blender to me, but I could be wrong :)
[17:41:59] <Jymmm> alex_joni: RUR-PLE
[17:42:15] <Jymmm> alex_joni: It's the LOGO of python
[17:45:15] <Jymmm> alex_joni: It's got robots too!
[17:45:42] <Jymmm> seb_kuzminsky++
[17:46:38] <cradek> 10% off plus free shipping for $99 orders from enco
[17:47:12] <cradek> does anyone care about these? I'll stop the monthly updates if no.
[17:47:32] <Jymmm> cradek: You should put them in the topic actually
[17:47:41] <cradek> nahhhh
[17:47:49] <cradek> the topic is not a blog or bulletin board
[17:48:00] <cradek> it should say what the topic of the channel is
[17:48:01] <Jymmm> No really, everyone likes a good deal
[17:48:15] <Jymmm> enco,mcmaster,etc
[17:48:19] <cradek> sure, but that's not the place
[17:48:38] <Jymmm> it's common spot, not a bg deal
[17:48:41] <Jymmm> big
[17:51:02] <Jymmm> SWPadnos: I'd like to see it do 90 degrees
[17:51:16] <SWPadnos> indeed
[17:51:32] <Jymmm> the video kinda sucks
[17:51:49] <SWPadnos> and it was very quiet
[17:51:49] <natetherobot> @skunkworks639 i am using version 2.2
[17:55:00] <Jymmm> SWPadnos: You know that HDHR I have? I'm able to pause liveTV in VLC 1.0.0
[17:55:09] <skunkworks639> natetherobot: I think there was quite a few bug fixes between 2.2 and 2.3.. You might want to get the latest version
[17:56:12] <natetherobot> ok, but how do i install the newer version, i'm fairly new to Linux?
[17:58:13] <skunkworks639> * skunkworks639 introduces natetherobot to the wiki :)
[17:58:15] <skunkworks639> http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?UpdatingTo2.3
[17:58:49] <skunkworks639> wiki - natetherobot.. natetherobot - wiki.
[17:59:46] <natetherobot> thanks!
[18:11:53] <skunkworks639> jepler: any pictures?
[18:13:14] <jepler> skunkworks639: no, I haven't touched zenbot in a few days
[18:13:31] <jepler> skunkworks639: next week, maybe (I'm out of town for the weekend)
[18:14:39] <skunkworks639> Nice :)
[18:18:35] <alex_joni> good night all
[18:26:49] <skunkworks639> night alex
[20:03:14] <pjm> archivist u about OM?
[20:03:23] <archivist> yup
[20:03:36] <pjm> ah can i pick yr brain a sec about G01 and G00
[20:04:07] <archivist> just ask and any can answer
[20:05:01] <pjm> ok cool, I'm using a G01 zblah to retract the Z followed immediatly by a G00 Xblah, but EMC seems to blend the moves so Z comes up and near the stop X starts moving
[20:05:22] <pjm> i noticed this the other day as the cutter hit the job, is this a normal behavious
[20:05:28] <pjm> behaviour
[20:07:15] <archivist> read about the trajectory planner and g61 for exact path mode
[20:07:41] <pjm> ahh ok so i could change my G00 to G61, ok I'll have a read
[20:08:10] <archivist> set path control mode .....
[20:13:24] <pjm> yeah G61 looks like what I need, just need to see if I can tell my cam s/w to use it
[21:09:26] <Goslowjimbo> How does one make a bash file with a iterative loop?
[21:10:36] <Goslowjimbo> I want to do repetative (sp) raw writes
[21:11:16] <Goslowjimbo> maybe a hundred or so.
[21:11:27] <seb_kuzminsky> Goslowjimbo: for i in 1 2 3; do echo $i; done
[21:11:36] <seb_kuzminsky> ?
[21:12:41] <Goslowjimbo> OK. I was trying a for next loop before.
[21:12:58] <Goslowjimbo> Thanks
[21:13:04] <SWPadnos> or even better, put the addresses and data values in a separate file (or a "here file"), and then use a while loop to iterate over them
[21:13:53] <Goslowjimbo> Is it possible to also put a delay in?
[21:13:59] <SWPadnos> sleep N
[21:14:20] <SWPadnos> in seconds, but it can be a decimal, so sleep 0.1 will be around 0.1 second
[21:15:12] <Goslowjimbo> fantastic. What I'm trying to do is get a bunch of raw writes in the theory that my old scope would be able to see it.
[21:15:20] <SWPadnos> see here for the exact syntax of a loop over a file: http://www.linuxquestions.org/questions/programming-9/bash-read-entire-file-line-in-for-loop-240016/
[21:15:24] <SWPadnos> ah
[21:15:29] <SWPadnos> your old fixed scope? :)
[21:16:20] <Goslowjimbo> I put a 20 amp fuse in place of the 1/2 amp fuse, and the scope works. Stinks a little, and probably wont work long, but it works.
[21:16:45] <skunkworks639> ummm - yah ;)
[21:17:12] <archivist> keep fire extinguisher handy
[21:18:09] <Itsmee> hi could i ask what do people use to get the code to use inemc2 im having problems finding an "easy" solution for likes of writing etc
[21:18:40] <archivist> see wiki and the cam page
[21:19:21] <Itsmee> i went through them but most seam to use the scan technique where it scans the over the entire pice dropping to etch the parts it needs
[21:19:56] <archivist> what are you making
[21:19:57] <bill2or3> Itsmee, if you find a good answer, tell me too.
[21:20:26] <Goslowjimbo> seb_kuzminsky: There is a Wiki on making bit files in EMC. Have you seen this, and is it accurate?
[21:20:46] <Itsmee> i found a great little plugin for skencil to do the line drawings i make for the guy helping but it wont work on fonts:(
[21:21:36] <bill2or3> I've played with hp2xx a little, it has a gcode output mode.
[21:21:38] <bill2or3> fwiw
[21:21:52] <bill2or3> it's probably good enough for simple engraving.
[21:22:12] <Itsmee> basically im making some sign as such for schools who have disabled children like saying touch and smell etc to enhance there senses and its the writing im having probs with
[21:23:04] <archivist> cad->dxf->gcode
[21:23:47] <Itsmee> ok ill keep searching see what i can come up with
[21:24:27] <archivist> Itsmee, did you see cradeks ttt
[21:24:36] <bill2or3> with hp2xx you can go inkscape->hpgl->gcode
[21:25:13] <archivist> http://www.timeguy.com/cradek/truetype
[21:26:03] <bill2or3> even better.
[21:26:10] <Itsmee> archivist you are a god and i reallly must buy you a beer
[21:26:20] <archivist> * archivist is thirsty
[21:27:12] <Itsmee> archivist if your in the uk i seriously will buy you a beer thats just what i need
[21:27:34] <archivist> hmm east midlands
[21:27:42] <Itsmee> lol not too far yorkshire
[21:28:13] <archivist> Sunny Swadlincote southe derbyshire
[21:29:14] <archivist> are you a certain watchmaker up there?
[21:29:50] <Itsmee> no no im just a linux and emc noob that needs help lol if i could afford a cnc machine i would be churning out tons of stuff
[21:30:13] <archivist> are there is someone near you then
[21:31:31] <Itsmee> wouldnt surprise me ya know what yorkswhire folk are like were tight with our money if we can do it ourselves lol
[21:32:31] <Itsmee> ok now i am being a noob i already have ttt installed but where do you go to use it it aint in the applications menu
[21:35:19] <archivist> ttt "Hello World" > hw.ngc
[21:36:17] <archivist> truetype-tracer "Hello World" > hw.ngc
[21:37:38] <Itsmee> is there a gui for it?
[21:37:44] <archivist> hell no
[21:38:08] <Itsmee> lol
[21:38:52] <archivist> one day I will finish my version of it to do V form carved letters
[21:39:25] <Itsmee> whoa you made that
[21:39:56] <archivist> started...made is a little strong
[21:41:00] <Itsmee> well tbh im quite a noob with linux and emc2, microshaft software im kewl with so all this is new and tbh quite im pressive so far
[21:42:49] <archivist> edit the output and you will see scale and other fiddles at the beginning
[21:46:20] <Itsmee> lol that is just what i needed
[21:58:57] <Itsmee> right time for bed ty archivist you a star
[21:59:15] <archivist> I have to drive home first :)