#emc-devel | Logs for 2009-12-01

[03:49:25] <cradek> cool, docs even!
[03:51:57] <CIA-13> EMC: 03cradek 07master * r61f705e44cd0 10/ (4 files in 3 dirs): update tool parameters when tooltable reloaded
[06:15:35] <dgarr> cradek: thanks! (the docs are pretty minimal)
[14:15:51] <Dave911> skunkworks: http://groups.yahoo.com/group/mach1mach2cnc/message/115585 This is Mach's real problem..a big list of things to fix .... someday...
[14:44:24] <cradek> too bad only one person out of six billion in the world can fix them and everyone else has to wait and hope he does it
[14:44:55] <SWPadnos> oh come now - there are at least two people who could fix them
[14:45:01] <SWPadnos> but one of them decided to retire :)
[14:45:17] <cradek> I think that's about 0.00000000017% of the world population
[14:45:34] <cradek> compare to 100.0% for EMC's scheme
[14:45:51] <SWPadnos> well sure, there's some advantage there
[14:46:57] <SWPadnos> u r so rite
[14:46:58] <cradek> er, "THERE", sorry
[14:47:05] <cradek> I screw that up every time
[14:47:09] <SWPadnos> bonehead
[14:47:16] <cradek> nyah
[14:48:49] <skunkworks_> boy - I must have missed something :)
[14:48:55] <skunkworks_> logger_dev: bookmark
[14:48:55] <skunkworks_> Just this once .. here's the log: http://www.linuxcnc.org/irc/irc.freenode.net:6667/emcdevel/2009-12-01.txt
[14:49:32] <cradek> skunkworks_: sorry, it's going to be one of those days...
[14:51:49] <jepler> micges: can you verify whether the sizeof() problem you encountered is fixed after d48c422 work around a gcc bug in order to properly align hal_float_t
[14:56:19] <jepler> micges: can you verify whether the sizeof() problem you encountered is fixed after d48c422 work around a gcc bug in order to properly align hal_float_t
[14:59:21] <micges_work> jepler: I'll do this tommorow
[16:59:38] <Dave911> cradek: >>too bad only one person out of six billion in the world can fix them
[16:59:39] <Dave911> Yep, sort of a sad state of affairs.... but one of these days he will get there .....
[17:02:22] <Dave911> Different subject ... Is there a EMC2 config example around that uses a dual PID loop on a servo axis - encoder on back of motor and then also glass scale for actual axis position feedback?
[17:02:24] <Dave911> I thought I saw one around somewhere and now I can't find it. I need to do something similar.
[17:04:13] <cradek> we did that on Stuart S's G&L horizontal boring mill
[17:04:49] <cradek> in fact he just posted the config to emc-users (asking for help on the W axis) a couple days ago
[17:23:54] <jepler> jmkasunich wrote a blog entry about it way back when some of us worked on it. Scroll down to "the results" for an english-language description of what the hal configuration means: http://jmkasunich.com/cgi-bin/blosxom/shoptask/wichita-trip-02-20-08.html
[17:31:41] <skunkworks_> does this help? http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?Combining_Two_Feedback_Devices_On_One_Axis
[17:49:38] <Dave911> Yes, that helps a lot! I read Kasunich's webpage about that giant mill before and totally forgot that it had dual loops - but that makes perfect sense consider the size of the machine. I do remember Stuart mentioning the W axis a few days ago but that went over my head at the time. I'll go back and look for that now. Thanks!
[17:58:17] <micges1> micges1 is now known as micges
[18:08:06] <Dave911> cradek: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=150393510822&ssPageName=ADME:B:SS:US:1123
[18:08:08] <Dave911> Don't you need a spare?? ;-) I believe this is the same one that was on Ebay for a lot more a few weeks ago - it was sitting on a driveway as I recall.
[18:24:10] <alex_joni> heh
[18:38:58] <cradek> um well, nooo, I don't need a spare...
[18:39:40] <cradek> if it was really sitting on that motor how can it not be more destroyed than that?
[18:42:07] <cradek> that magazine is way bigger than mine
[19:47:20] <robh_> hi, i cant see to set max velocity to the machines combined max velocity, i can get jog speed set correct but the max_velocity = will not over ride the slider
[19:49:01] <cradek> whether the max velocity slider also applies to jogs is up to the particular gui. in touchy it does (and it consequently needs no separate jog speed setting). in AXIS it doesn't.
[19:49:16] <robh_> using axis sorry should said
[19:50:16] <robh_> all 3 axes are say 10m/min which should give about 18m/min combined machine velocity but velocity slider max is at 10m
[19:50:41] <cradek> ok I didn't get your question
[19:51:01] <robh_> when i changed to 2.3.4 this changed as before i could set the veleocity correct
[19:51:38] <cradek> I recall seeing this question on the list before. I think the answer is set [TRAJ]MAX_LINEAR_VELOCITY to what you want the top of the maxvel slider to be
[19:53:25] <jepler> http://mid.gmane.org/20091009174416.GB25044@unpythonic.net
[19:53:45] <robh_> linear seems to set the jog slider
[19:53:47] <cradek> aha
[19:54:50] <robh_> in manual i cant seem to find a max_velocity slider setting,
[19:55:46] <robh_> i did take out the max_velocity = from [traj] section also,
[19:56:41] <robh_> machine will jog at 18m in all axes with MAX_LINEAR_VELOCITY= set, but obvisly running program machine moves get capped
[19:56:58] <robh_> i didt know if anything had changed or a new display option had been made
[19:57:10] <cradek> sorry, I don't understand what you're asking - can you start over?
[19:57:20] <robh_> sure
[19:57:22] <cradek> I thought jepler's link above was the answer to your question but I must be missing something
[19:58:58] <robh_> aah yes jepler link did fix it
[19:59:11] <robh_> its missing in manual probly when i missed it
[20:00:31] <robh_> sorry to truble you
[20:00:46] <cradek> np
[22:27:33] <jepler> Florian Rist gets a gold star for being able to compile and use a kinematics component without hand-holding
[22:31:46] <SWPadnos> indeed
[22:31:55] <SWPadnos> I just hope his machine has a perpendicular spindle
[22:32:42] <alex_joni> it doesn't
[22:32:46] <alex_joni> I think he wrote that