#emc | Logs for 2008-07-09

[00:13:59] <SWPadnos_> SWPadnos_ is now known as SWPadnos
[01:00:28] <K`zan_emc> Afternoon folks!
[01:44:53] <LawrenceG> curse windows.... want to install visual studio so I can build an application, its says it needs at least SP2 to install, download SP3, wont install because it needs SP1, SP1 not available anymore, try SP2... it wont install because it thinks my XP is bootleg.... curse windows
[01:46:00] <LawrenceG> waste of a day... :{
[01:46:21] <a-l-p-h-a> I'm a workaholic.
[01:46:22] <a-l-p-h-a> :/
[01:47:42] <LawrenceG> quiet in here.... fest must have burnt everyone out
[02:00:52] <john_f> Hi all. I want to install emc on my VIA pico ITX board. I was able to get the live cd 8.04 to work but didn't want to install this on top of what I already have. I am running ubuntu 8.04 and followed the install script for 8.04 but the RTAI kenel doesn't get installed. Emc is installed but wont run. What should I do next? Is there a way to re-do the installation?
[02:26:49] <renesis> omg dont buy via, pls
[02:26:56] <renesis> youre only gonna encourage them to fail more
[02:27:39] <renesis> john_f: did you update your boot menus or whatever to use the new kernel thing?
[02:28:09] <renesis> maybe the install script does it for you
[02:29:03] <john_f> I am not sure I just followed the steps on the linuxcnc.org pages for installing
[02:32:03] <renesis> ok well you have a boot manager, and it loads a config/menu thing at boot, which either boots to a default systemn or presents you with a list
[02:32:33] <renesis> you need to point that at the new kernel, assuming you actually put the new kernel there
[02:33:38] <john_f> Ok is there a way to find out if the RTAI kernel is somewhere on my drive without re-booting?
[02:34:00] <SWPadnos> dpkg -l "*rtai*"
[02:34:19] <SWPadnos> or run synaptic and search for rtai
[02:34:51] <SWPadnos> one silly question: did you reboot after installing?
[02:35:40] <john_f> yes but I don't recall ever getting an option for which kernel to use
[02:36:12] <john_f> This is on the computer that I use every day so I have re-booted many times
[02:36:18] <K`zan_emc> cradek: the tailstock might be the least of my problem :-/.
[02:36:26] <SWPadnos> the grub menu will not normally be shown. it usually says something like "press ESC for menu" for a few seconds
[02:36:35] <SWPadnos> during bootup
[02:36:45] <renesis> i hate default grub menus
[02:37:46] <LawrenceG> K`zan_emc, whats cookin?
[02:38:59] <john_f> Ok but last year until my other machine died I had installed emc on 6.06 and using the live cd. I also upgraded ubuntu many times and emc always worked and i never had to do anything special when i booted.
[02:39:39] <SWPadnos> we don't yet know what went wrong. if youhav eerror messages from the install procedure, that would be good
[02:40:07] <SWPadnos> if not, you should check to see if EMC2 is actually installed
[02:40:17] <SWPadnos> you can do that with Synaptic, by searching for EMC2
[02:40:25] <john_f> Anyway I will look next time I boot. Can I just re install and capture any error message?
[02:40:44] <SWPadnos> that will tell us whether the repositories got added, and whether the packages were installed
[02:40:58] <SWPadnos> I'm not sure. if the packages are installed then reinstalling won't help
[02:41:00] <john_f> I have emc2 installed and can start it. but it terminates with an error because no RTAI kernel
[02:41:24] <SWPadnos> ok, run synaptic and look for rtai, to see if the kernel got installed
[02:41:35] <SWPadnos> we don't know if it's installed but not getting used, or if it's not installed at all
[02:41:44] <SWPadnos> (it probably is installed, since it's a dependency of EMC2)
[02:42:11] <SWPadnos> the difference between installing from our liveCD and the stock CD is that with ours, the standard kernel package never gets installed
[02:42:27] <john_f> zephyr@zephyr-desktop:~$ dpkg -l "*rtai*"
[02:42:28] <john_f> Desired=Unknown/Install/Remove/Purge/Hold
[02:42:28] <john_f> | Status=Not/Installed/Config-f/Unpacked/Failed-cfg/Half-inst/t-aWait/T-pend
[02:42:28] <john_f> |/ Err?=(none)/Hold/Reinst-required/X=both-problems (Status,Err: uppercase=bad)
[02:42:28] <john_f> ||/ Name Version Description
[02:42:28] <john_f> +++-==============-==============-============================================
[02:42:30] <john_f> ii linux-image-2. 2.6.24-16.30.l Linux kernel image for version 2.6.24 on rta
[02:42:32] <john_f> ii rtai-modules-2 3.6-linuxcnc.1 Real Time modules for linux-image-2.6.24-16-
[02:42:34] <john_f> zephyr@zephyr-desktop:~$
[02:42:43] <john_f> does that help?
[02:42:47] <SWPadnos> yes
[02:43:16] <SWPadnos> since you have both kernels installed, every time there's an update to the standard kernel, it will be selected as the boot kernel
[02:43:44] <SWPadnos> I think you can uninstall the standard kernel package without problems, but I'm not positive that's true
[02:44:07] <SWPadnos> you can set the RTAI kernel to boot automatically (until the next standard kernel update :) ) by editing /boot/grub/menu.lst
[02:44:29] <john_f> OK what about selecting the RTAI when booting?
[02:44:34] <chr0n1c> qgrubeditor is a nice package to edit the default boot kernel
[02:44:42] <SWPadnos> you can do that, but you'll need to do it every boot
[02:45:30] <john_f> OK I will try that in the next few days. Thanks for your help.
[02:46:27] <SWPadnos> sure
[03:08:00] <john_f> OK Im back. It works - I just needed to select the kernel from the grub menu. It works as good as with the live CD. There is an unexpected real time delay and RTAPI error but axis sim runs. So I am happy for now.
[03:09:00] <SWPadnos> cool
[03:09:30] <SWPadnos> if you note which entry it is on the grub menu, you can change the "default" setting to that number (zero-based) to boot the RTAI kernel automatically
[03:09:59] <SWPadnos> (ie, 2 for the third entry, which it probably is)
[03:10:55] <john_f> OK I will see if I can do that. Anyway I need to quit for now. By.
[03:11:11] <SWPadnos> see you . good luck
[03:15:54] <K`zan_emc> Confuzed_K`zan got a lathe question that hopefully someone can explain. 0.019 sag in x and y at 10" from chuck (7x12) I can't imagine with the bar out of a printer. Near chuck it is (set zero on high spot top and front) and I get less than 0.001 (0.0018-0.0019 as best I can tell on dial indicator). Printer when last used printed prefectly (sacrificed printer for the bar - haven't used it in a couple of years or so now). What gives?!?
[03:16:22] <K`zan_emc> Print head guide rod...
[03:16:59] <K`zan_emc> Bar, as near as I can tell is flat to the glass door as best I can tell FWIW.
[03:17:20] <cradek> is this in a 3 jaw chuck or between centers?
[03:17:27] <K`zan_emc> Chuck jaws screwed up!?! But that doesn't make sense either...
[03:17:58] <K`zan_emc> In the three jaw chuck hanging out in space 10". Error half the above at 5"...
[03:18:00] <cradek> chucks just don't hold stuff very straight... if you turn the chuck does the far end of the rod wave around in a circle?
[03:18:14] <K`zan_emc> Yes
[03:18:22] <cradek> unfortunately that's just life
[03:18:41] <cradek> you can't cut 10" from a chuck without some tailstock support
[03:18:47] <K`zan_emc> Much screwing around with tailstock today...
[03:18:53] <K`zan_emc> AND...
[03:18:56] <cradek> any progress?
[03:19:29] <K`zan_emc> It *looked* like I had the thing reasonably centered (heh, no bets, but...) and I get , getting notes...
[03:20:43] <K`zan_emc> 3/8" t6061-t6 rod chucked - raw it measures 0.375 across 3" (consistant withing 0.001-2 aross the bar, that I measured)...
[03:21:13] <K`zan_emc> Just chucked no tailstock - total length outside the chuck == 3.25"
[03:22:19] <K`zan_emc> Picked a depth and ground it - took 10 passes and was still getting al dust but I figured that should compensate for any push from the tool?!?
[03:23:11] <K`zan_emc> Off by ~ 0.010 ...
[03:23:17] <cradek> which way?
[03:23:30] <K`zan_emc> Repeated this with one inch far enough out to cut.
[03:23:35] <cradek> bigger at the end?
[03:24:10] <K`zan_emc> .355 at headstock / 0.361 at tailstock end
[03:24:32] <cradek> that could definitely be deflection
[03:25:12] <cradek> I wouldn't expect to turn 3/8 aluminum more than an 1.5 inch or so away from the chuck without tailstock support
[03:25:13] <K`zan_emc> 1" version only one pass and also larger at tailstock end (head: -/367 ; tail: 0.370)
[03:25:31] <cradek> hm, that's a little more troubling
[03:25:45] <cradek> sharp tool?
[03:26:05] <K`zan_emc> Interesting part (to me, I'm easy :-) is that the 0.003 on the one inch corresponds closely to the 0.010 at 3"...
[03:26:07] <K`zan_emc> Yes.
[03:26:16] <K`zan_emc> Stoned it before starting all this.
[03:26:19] <cradek> but that's only .002 - not much deflection really
[03:26:55] <SWPadnos> .0015 - the measurement is probably a diameter
[03:27:06] <cradek> yes
[03:27:10] <K`zan_emc> I guess my problem(s) is that I am NOT sure what I should actually expect in real life with this.
[03:28:23] <K`zan_emc> Am I expecting too much to expect to cut a 4" chunk down to 0.248 and expect it to be parallel. The hole these things go into is 0.250...
[03:28:48] <K`zan_emc> 0.010 out across the stick makes sure it won't fit...
[03:28:56] <K`zan_emc> Turning it end for end helps....
[03:28:56] <cradek> you sure cannot do that with a chuck only
[03:29:11] <K`zan_emc> Starting to think I got a super sunkist....
[03:29:15] <cradek> between centers you should be able to do it unless something is grossly wrong
[03:29:23] <K`zan_emc> No, I would not expect to.
[03:29:41] <K`zan_emc> If I can under any conditions I turn with a tailstock center.
[03:29:45] <K`zan_emc> (live).
[03:29:48] <cradek> at 4" of 1/4, your rod will be bigger in the center due to deflection
[03:30:22] <K`zan_emc> I suppose I should be using the follower rest?
[03:30:25] <K`zan_emc> !
[03:30:26] <cradek> yes
[03:30:27] <K`zan_emc> :-)
[03:30:33] <cradek> do you have one?
[03:30:52] <K`zan_emc> Yes, I guess you readjust it after every pass?
[03:31:04] <cradek> not sure...
[03:31:20] <cradek> maybe it goes on the cross slide and you adjust the cut with the compound feed?
[03:31:37] <K`zan_emc> Me either. My ignorance being legion gets depressing sometimes.
[03:32:25] <K`zan_emc> Will have to look and see how one is used, I would assume it goes opposite the tool and would thus move with the tool.
[03:32:48] <chr0n1c> does it have brass inserts?
[03:32:52] <K`zan_emc> err on carrage not cross slide.
[03:32:54] <K`zan_emc> YEs
[03:33:14] <chr0n1c> you want to adjust the follower rest so it's touching the part but not pushing it
[03:33:24] <chr0n1c> maybe every pass, maybe every two
[03:33:33] <K`zan_emc> So you do adjust it after each pass then, makes sense.
[03:33:42] <chr0n1c> but if you take stock you gotta adjust it...
[03:34:09] <chr0n1c> if it's cnc you have your hands free to adjust during the cut
[03:34:33] <K`zan_emc> That could be fun at 0.005-0.010 per pass (.375->0.248)
[03:34:54] <K`zan_emc> Heh, true, I want CNC everything.
[03:35:13] <cradek> can you get some nice 1/4 drill rod and be done?
[03:35:16] <K`zan_emc> Wonder how husky a stepper a 7x12 would tale/
[03:35:41] <chr0n1c> centers on long lathe parts is the standard idea though i think... and if it's a big cut or small diameter you can add in the follorer rest
[03:36:10] <K`zan_emc> Problem is that that wouldn't fit (I assume it comes in 0.250), but the problem is that there is a 3/8" section on the end to dop the stones to.
[03:36:31] <cradek> ah
[03:36:49] <K`zan_emc> Might be smarter to get some 1/4" stuff and make the 3/8" section with a 1/4" hole and locktite it together...
[03:36:50] <chr0n1c> 3/8 drill rod and a spin jig on a surface grinder?
[03:37:08] <K`zan_emc> Got one right here in my left pocket :).
[03:37:11] <cradek> uh I suspect he doesn't have a surface grinder.
[03:37:22] <cradek> oh I was wrong :-)
[03:37:27] <chr0n1c> lol..
[03:37:42] <chr0n1c> i thought i'd throw it out there.
[03:37:44] <K`zan_emc> * K`zan_emc is trying with a VERY! limited budget... And in an apartment.
[03:38:02] <chr0n1c> oh my machines in an apartment sounds fun :D
[03:38:13] <K`zan_emc> Much more enthusiasm than resources :).
[03:38:28] <K`zan_emc> My landlord is a Nazi (really).
[03:38:57] <K`zan_emc> Came over with his father after WWII under operation paperclip.
[03:39:35] <K`zan_emc> He doesn't like anything other than sleeping, perhaps washing and, of course, paying the rent :).
[03:40:13] <K`zan_emc> But we keep trying :-). Bloody good for a challenge :).
[03:40:53] <K`zan_emc> Coffee, bbiab, back needs a stretch too.
[04:03:24] <K`zan_emc> cradek: and all. Thanks for the help. I've been at this all day and it is fall over time :-). Will see if I can make some sense of it all tomrrow. Night all
[05:55:43] <micges> hi all
[05:55:48] <toastydeath> hay
[05:55:55] <micges> I have problem:
[05:56:33] <micges> in configuration I have : base thread 1khz , servo thread 1khz
[05:56:59] <micges> and I want create iothread 10khz
[05:57:21] <micges> threads won't load
[05:57:33] <toastydeath> i don't use emc so i can't help, sorry
[05:57:54] <micges> return error 1
[05:57:54] <micges> help ?
[07:01:01] <alex_joni> micges: can you paste the exact error?
[07:19:40] <micges> insmod: error inserting '/home/x/EMC2/ploter/emc/rtlib/threads.ko': -1 Operation not permitted
[07:19:41] <micges> core.hal:6: exit value: 1
[07:19:41] <micges> core.hal:6: insmod failed, returned -1
[07:19:41] <micges> Shutting down and cleaning up EMC2...
[07:20:26] <micges> hal config line: loadrt threads name1=diothread period1=1000000 name2=iothread period2=10000000
[07:24:46] <micges> correction: hal config line: loadrt threads name1=diothread period1=100000 name2=iothread period2=10000000
[07:25:10] <micges> first one line is working
[07:26:39] <alex_joni> you know you can only insert threads once.. right?
[07:28:03] <micges> yes
[07:28:56] <micges> loadrt threads name1=diothread period1=1000000 name2=iothread period2=10000000 <- this is working
[07:29:15] <micges> loadrt threads name1=diothread period1=100000 name2=iothread period2=10000000 <- this isn't working
[07:29:42] <alex_joni> I think you need to load the faster thread before the others
[07:29:50] <alex_joni> so before motion gets loaded
[07:30:19] <micges> checking...
[07:30:24] <alex_joni> can't you use the base thread for this?
[07:33:26] <micges> base thread doesn't use FP
[07:35:02] <micges> I need at least 5khz to connect do-pid-calcs
[07:35:22] <micges> load before motion doesn't working
[07:37:21] <micges> in 2.1.7 that config with threads worked
[07:51:12] <micges> logger_emc: bookmark
[07:51:12] <micges> Just this once .. here's the log: http://www.linuxcnc.org/irc/irc.freenode.net:6667/emc/2008-07-09.txt
[08:51:11] <micges> strange, connecting motion-controller and command-handler from servo-thread(1khz) to iothread(1khz created by user) made machine behavior unpredictable and wrong
[08:51:49] <micges> is servo-thread used for anything else ?
[09:15:32] <alex_joni> micges: well, you need to keep the order of the functions right
[09:16:52] <Vq^> function sequencing is for assembler programers :o)
[09:17:41] <alex_joni> micges: also 2 threads that run at 1kHz each, will cause some problems
[10:40:16] <jepler> it was always intended but not always enforced that thread creation order be by speed, from fastest to slowest. http://cvs.linuxcnc.org/cvs/emc2/src/hal/hal_lib.c#rev1.56
[11:34:48] <micges> thanks you all
[11:34:56] <micges> machine is working now
[11:36:46] <micges> we are integrating table mill now with PID in emc
[11:37:39] <micges> hal PID components algorithms are better than in BALDOR servos :)
[11:40:00] <alex_joni> micges: heh :)
[13:42:54] <Guest7472> moin
[13:43:00] <Guest7472> Guest7472 is now known as rave1
[13:45:20] <skunkworks> Hello
[13:47:26] <rave1> ohhhh right this is a english speaking channel
[13:50:03] <skunkworks> mostly ;)
[13:50:51] <rave1> ok I found on the wiki the answer to my question^^
[13:51:01] <skunkworks> That is great
[13:51:36] <rave1> yes^^
[13:56:48] <skunkworks> cool quote. <micges> hal PID components algorithms are better than in BALDOR servos :)
[14:02:59] <micges> skunkworks: tested :)
[14:19:31] <skunkworks> Nice :)
[14:26:08] <micges> hal pids better holds position
[14:26:34] <micges> up to 0.02 mm with vel 3000 mm/min
[14:33:48] <skunkworks> very nice :)
[15:18:56] <skunkworks> LawrenceG: did you see there is a thread on your servo drives on cnczone?
[15:20:11] <LawrenceG> no, but I have had a few people interested in adding a discrete output stage to them
[15:26:16] <rave1> Hello again
[15:27:43] <rave1> I've one question... which 2D Cad Progromm do you use? I've installed Qcad but I don't know how to rotate an rectangle (the rotation tool doesn't work like the help says)
[15:30:37] <BigJohnT> does the rotation tool work at all?
[15:31:21] <rave1> ok it works...
[15:31:35] <rave1> it was my mistake^^
[15:32:27] <BigJohnT> you got experience instead of what you expected the first time... :)
[15:34:45] <rave1> I'm experienced in Catia but this doesn't work in linux
[15:35:04] <rave1> and I don't have any idea how to get Catia drawings into G-Code
[15:39:23] <BigJohnT> I know nothing about Catia
[15:39:37] <BigJohnT> I'm a power SolidWorks user
[15:39:48] <archivist> solidworks rulz
[15:40:10] <BigJohnT> got grinder?
[15:41:12] <skunkworks> LawrenceG: http://www.cnczone.com/forums/showthread.php?t=40940
[15:51:49] <LawrenceG> skunkworks, thanks... I have seen that... tfmacz lives about 45min drive from me.... we get together on all kinds of electronic gizmo projects
[15:52:05] <skunkworks> sounds like fun :)
[15:53:49] <LawrenceG> there is no reason the circuit couldnt drive a big honkin bridge.... I am playing with a 3phase drive version for some a/c servo I got cheap... but my goal of having the parts cost < $20 is getting in the way!
[15:54:14] <LawrenceG> there is no reason the circuit couldnt drive a big honkin bridge.... I am playing with a 3phase drive version for some a/c servo I got cheap... but my goal of having the parts cost < $20 is getting in the way!
[16:05:53] <cradek> why CSS has a max rpm: http://www.youtube.com/watch?v=nzb-i7-fuq8
[16:08:30] <alex_joni> hi cradek
[16:08:33] <cradek> hi
[16:09:53] <alex_joni> heh, I don't think he has a clue what he did wrong
[16:10:57] <cradek> sure seemed like he took a while to hit the button too... probably playing with the video camera instead
[16:11:01] <alex_joni> he said it wasn't tightened properly
[16:11:16] <cradek> ah
[16:11:22] <alex_joni> "Voil. quand la pi.ce est mal sérrée"
[16:15:12] <skunkworks> looks like he was going to reach in an fix it. ;)
[16:16:37] <cradek> he's lucky it stayed inside the machine
[16:18:57] <skunkworks> yes
[16:19:17] <archivist> oo la la, tighten le chuck
[16:26:20] <skunkworks> http://s109.photobucket.com/albums/n48/S_J_H/cnc bench lathe/?action=view&current=internalcncthreading.flv
[16:26:22] <skunkworks> mach
[16:26:29] <skunkworks> no clunking that I can here.
[16:26:30] <skunkworks> hear
[16:27:59] <skunkworks> that didn't work.. try this
[16:28:00] <skunkworks> http://s109.photobucket.com/albums/n48/S_J_H/cnc%20bench%20lathe/?action=view&current=internalcncthreading.flv
[16:50:28] <BigJohnT> skunkworks: is that single pulse per revolution threading?
[17:04:36] <skunkworks> YES
[17:04:40] <skunkworks> sorry - yes
[17:29:10] <Guest64183> Hi
[17:29:16] <Guest64183> Guest64183 is now known as rave1
[17:29:49] <rave1> is here anyone using dxf2gcode? for exporting dxf files?
[18:26:37] <anonimasu> morninghmm
[18:41:54] <alex_joni> rave1: not sure, but there are a number of dxf2gcode tools linked from wiki.linuxcnc.org
[18:43:57] <skunkworks> Hi alex
[18:46:35] <alex_joni> hi samco
[18:46:44] <skunkworks> traveling?
[18:46:50] <alex_joni> nope.. home
[18:50:11] <rave1> alex_joni: thx but it doesn't work (my "kreise" are to fat in diameter because the tool compensation does not work)
[18:51:15] <alex_joni> rave1: that's why I suggested you look at wiki.linuxcnc.org, there are a couple of tools which all do the same thing
[18:51:20] <alex_joni> maybe one of them does work
[18:52:59] <rave1> yeah but this had a nice gui
[18:53:01] <rave1> *g*
[18:53:31] <alex_joni> is it OSS?
[18:54:08] <rave1> its a python program
[18:54:45] <rave1> http://www.christian-kohloeffel.homepage.t-online.de/dxf2gocde.html
[18:55:22] <alex_joni> I think I saw him mention it on cncecke
[18:58:22] <alex_joni> rave1: it would be best if you report problems there: http://5128.rapidforum.com/topic=114770059894&startid=4
[18:59:07] <rave1> jeah thanks but I think im too stupid to use this program^^
[19:07:40] <alex_joni> rave1: fragen kann ja nicht schaden
[19:08:22] <SkinnYPup> This is also worth taking a look at Gcnccam. If you have dxf files for use.http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?GCncCam
[19:30:33] <Dallur> You can also download Sheetcam TNG, it's free (untill release) linux/windows but you will have to verify everything since it's still early beta
[19:37:57] <BigJohnT> Dallur: you get started fitting parts yet?
[19:41:36] <Dallur> BigJohnT: finished cutting everything
[19:42:10] <BigJohnT> cool, I saw from the pictures you rolled the plasma table outside to cut...
[19:42:46] <BigJohnT> do you frame it up upright or upside down?
[19:42:49] <Dallur> BigJohnT: yeah, just rolled the whole thing outside, way easier than trying to get the plates in, 2x6m plates are hard to get through 4x3 doors
[19:42:58] <Dallur> BigJohnT: Upside down
[19:43:10] <Dallur> BigJohnT: then I roll once the undersides are finished
[19:43:13] <alex_joni> Dallur: 2x6 fits nicely through 4x3 :)
[19:43:16] <BigJohnT> easier to keep frames square
[19:43:45] <Dallur> alex_joni: yeah, well a sideloader makes it easier :)
[19:43:54] <alex_joni> right
[19:44:03] <alex_joni> how's everything in iceland?
[19:44:19] <Dallur> good, very good these days since I finished cutting all the steel for the boat
[19:44:29] <alex_joni> so you'll be sailing soon?
[19:44:55] <Dallur> alex_joni: next spring is probably a fair bet
[19:45:17] <alex_joni> nice bet
[19:45:35] <BigJohnT> I worked in a shipyard once and they put a 585' long destroyer in the water every 6 weeks or better
[19:46:01] <BigJohnT> 25,000 empoyees!
[19:46:09] <Dallur> wow, how many were in construction at any given time ?
[19:46:50] <BigJohnT> hmmmm not counting the west bank where final fit out was perhaps 10 - 12
[19:47:18] <BigJohnT> you started walking in the yard and the very bottom of each section was being built
[19:47:47] <BigJohnT> at each of the next stations it got taller and taller
[19:48:31] <BigJohnT> when they joined the three hull sections together the next station they loaded the entire superstructure at once
[19:48:46] <BigJohnT> then popped them in the water with a dry dock
[19:49:08] <alex_joni> BigJohnT: saw a welding robot once for welding things like that
[19:49:18] <alex_joni> it had a 75m long track
[19:49:28] <alex_joni> with 20-something m crosstrack
[19:49:57] <alex_joni> it was for welding the "double bottom" for tankers
[19:50:52] <BigJohnT> I installed machinery, I was a millwright then
[19:51:40] <alex_joni> nice
[19:52:12] <BigJohnT> they had a programmable torch back then, you could see where 3rd shift had used it to cut fireplace parts LOL
[19:52:13] <Dallur> Almost all the shipbuilding over here has moved to Poland, Asia or South America, not much left, just maintenance
[19:52:15] <archivist> one learns real work in places like that
[19:53:12] <BigJohnT> I learned real work on offshore drilling rigs...
[19:54:06] <archivist> I had a welder for 21st so went and got a trainee welder job at a truck trailer and container makers
[20:00:11] <Guest798> #emc-devel
[20:00:21] <alex_joni> * alex_joni passes Guest798 a /join
[20:01:06] <Guest798> thx
[20:01:16] <alex_joni> hi btw
[20:16:28] <testerjoe> hi, jemand aus de hier??
[20:17:39] <alex_joni> nein :)
[20:17:57] <alex_joni> meistens nicht, aber ein paar kapieren trotzdem deutsch :D
[20:22:22] <testerjoe> lade gerade die livecd und bin im wiki unterwegs
[20:22:41] <alex_joni> probleme?
[20:22:50] <testerjoe> bis ich da durch binn, is ja weinachten..
[20:23:09] <alex_joni> suchst du was bestimmtes?
[20:24:59] <testerjoe> ich suche nach einer möglichkeit, ein xy-tisch unter linux in "echtzeit" anzusteuern
[20:25:35] <testerjoe> problem is ein besonderes interface, was am lpt hängt
[20:27:49] <alex_joni> aha
[20:27:55] <testerjoe> krieg ich das emc so hingebogen, dass ich für die hardware eigene parallelport-sequenzen definieren kann??
[20:28:06] <alex_joni> wenn du'n treiber dazu schreibst
[20:28:16] <alex_joni> aber es haengt von den sequenzen ab
[20:28:35] <alex_joni> fuer direkt motor ansteuerung ist es ganz einfach (da muss man nur konfigurieren)
[20:29:53] <testerjoe> so einfach wird's sicher nicht werden
[20:30:50] <testerjoe> das ding wird über dac's angesteuert, die ihre daten seriell bekommen müssen
[20:31:40] <alex_joni> aha, das soll auch nicht sehr schwer sein :D
[20:32:33] <testerjoe> ich hab für xp schonmal was gebastelt, aber linux währe mir lieber
[20:34:30] <alex_joni> testerjoe: das sollte interessant sein: http://www.wallacecompany.com/machine_shop/EMC2/serial_adc/
[20:35:45] <alex_joni> ist ein ADC der seriell angesprochen wird (ueber ein parport)
[20:36:14] <alex_joni> ich verschwind zu bett.. g'nacht
[20:37:25] <testerjoe> danke
[20:45:46] <skunkworks> well - that didn't seem like english..
[20:48:39] <dave_1> hey, anyone ... is switch() legal in comp?
[20:53:32] <BigJohnT> I thought is was kinda funny too
[20:53:52] <BigJohnT> dave_1: if you don't get caught it's ok
[20:54:43] <dave_1> indeed!
[20:55:30] <dave_1> I suppose the real question should be what is not legal in comp?
[20:59:02] <jepler> dave_1: the part after ";;" is C with some special preprocessor defines. the switch statement should work.
[20:59:31] <dave_1> thanks
[20:59:44] <skunkworks> jepler: aren't you out and about? (traveling?)
[21:00:29] <jepler> skunkworks: yeah, just checking in
[21:00:46] <jepler> today and tomorrow we're on Prince Edward Island; today we went up to the north shore and spent some time on the beach.
[21:01:09] <skunkworks> Nice. take lots of pictures :)
[21:01:12] <dave_1> cool
[21:02:02] <cradek> skunkworks: do you still have that hermes engraver?
[21:02:09] <cradek> hi jepler
[21:03:42] <skunkworks> No - sold it on ebay :)
[21:04:08] <skunkworks> cradek: why do you ask?
[21:04:53] <skunkworks> (paid for quite a bit of the garage concrete.
[21:04:54] <skunkworks> )
[21:05:55] <cradek> just wondered - I'm thinking about making a machine just for PCBs but it might be simpler to just buy something.
[21:06:29] <skunkworks> I would think the hermes machine would make a great pcb mill.
[21:08:02] <dave_1> jepler PEI weather should be considerably better than the 97 degrees we have today.
[21:09:00] <jepler> dave_1: I think it's in the upper 80s. not cool by any definition of the term.
[21:09:07] <jepler> but with my feet in the cool water it was quite nice
[21:10:43] <cradek> skunkworks: I bet soo to.
[21:10:44] <cradek> so too.
[21:11:32] <jepler> see you guys later
[21:11:43] <dave_1> have fun!!!
[21:11:46] <cradek> bye
[21:24:52] <BigJohnT> see you guys later off to the house