#linuxcnc-devel | Logs for 2012-06-04

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[10:48:27] <IchGuckLive> hi all
[10:49:02] <IchGuckLive> is there a side where i can see if and when the master has changed
[10:49:47] <IchGuckLive> or even if new things are gone to the master git
[10:51:54] <micges> IchGuckLive: subscribe to emc-commit@lists.sourceforge.net
[10:52:16] <micges> https://lists.sourceforge.net/lists/listinfo/emc-commit
[10:53:26] <IchGuckLive> thats nor the way i like it to be this mailinglists spaming around i subscribe and unsubscribe for ionstance to the cdevel list if i got a problem only for 2-3 days then im off again
[10:54:17] <IchGuckLive> http://sourceforge.net/mailarchive/forum.php?forum_name=emc-commit B)
[10:54:24] <IchGuckLive> ill be happy with this
[11:01:34] <IchGuckLive> so i s i read the commits im in trouble foam modes are going to master and the real mashine is on 5i25-7i76 that is developt in branch 2.5
[11:06:12] <IchGuckLive> that also indicades that my sim PC is runing wel and the real mashine is doing wear things
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[11:10:00] <IchGuckLive> i will ask jepler on this how it woudt go out best
[11:12:28] <IchGuckLive> by till tonight
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[11:39:52] <lukaszp> dir
[11:45:13] <lukaszp> cd ..
[11:45:22] <lukaszp> sorry :)
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[14:02:13] <mozmck> http://www.xenomai.org/pipermail/xenomai/2012-June/000122.html
[14:02:25] <mozmck> looks like there's hope!
[14:03:01] <micges> great!
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[15:46:49] <skunkworks> yay
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[19:13:33] <cradek> jepler: do you want to check a patch before putting it on v2.4_branch? (terrible css + m4 problem)
[19:14:33] <cradek> unfortunately it was such a swirly mess, every attempt to fix it with a minimal change broke something else. so the patch is more invasive than I would like: http://timeguy.com/cradek-files/emc/0001-Fix-incorrect-spindle-direction-after-g43-in-css-m4-.patch
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[19:25:17] <jepler> is it the case that EMCMOT_SET_SPINDLE_VEL was already not used before your change?
[19:28:39] <cradek> no
[19:29:30] <jepler> I see
[19:29:32] <jepler> - case EMCMOT_SET_SPINDLE_VEL:
[19:29:35] <jepler> -EMCMOT_SET_SPINDLE_VEL,/* set the spindle vel (>0 means forward, <0 means backward) */
[19:29:40] <jepler> as the only two removals of that identifier
[19:29:52] <jepler> what am I overlooking?
[19:30:28] <cradek> errrr yes
[19:30:40] <cradek> sorry
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[19:35:36] <cradek> there are two nml messages that set all the same spindle params, SPINDLE_SPEED and SPINDLE_ON. the only difference is that SPEED won't turn it on if it's not currently on.
[19:36:20] <cradek> that short circuiting was in taskintf already (I made it more explicit)
[19:37:12] <cradek> this is probably not the minimal change, but it's more defensive: for instance I noticed you can specify negative D in G96 and not get an error - it got passed on and screwed everything up
[19:40:06] <jepler> I am sitting here playing the wrong game, which is "surely there must be a simple solution [contrary to what you told me in the first place]"
[19:40:47] <cradek> that would be fine with me too :-)
[19:40:55] <cradek> it's such a mess
[19:41:22] <cradek> I think emccanon couldn't get it right previously, because the last-commanded spindle direction was not remembered
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[19:42:33] <jepler> it looks sort of like you should be able to use signbit(css_maximum) for that
[19:42:47] <jepler> but .. no?
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[19:45:44] <cradek> g96 s100 s1000 m3 / m4
[19:47:02] <cradek> I think you won't get a negative number saved for later use in emccanon.cc in this case
[19:54:09] <cradek> I also saw weirdness where when limited (g0x0) it'd go one way and when not (g0x1) it'd go the other way
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[20:00:03] <cradek> fwiw, the 2.5 merge of my patch seems to work right as well
[20:01:37] <cradek> now I'm worried about what happens if you don't specify G96D
[20:02:05] <cradek> d should be required but it's not
[20:02:48] <cradek> oh it uses 1e30 rpm, haha
[20:02:52] <cradek> ok no problem
[20:03:12] <cradek> Issuing EMC_SPINDLE_SPEED -- (+1316,+36, +0,1000000000000000019884624838656.000000,190.985932,0.000000,)
[20:03:15] <cradek> lovely
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[20:15:25] <jepler> har
[20:15:47] <skunkworks> shouldn't that be 1 with 30 zeros?
[20:16:12] <skunkworks> must be a float thing?
[20:16:13] <cradek> do not harass the floating point numbers
[20:16:26] <skunkworks> heh
[20:16:58] <skunkworks> but my spingle rotates at 1e40 rotations per year..
[20:17:01] <jepler> above about 2^53 ~= 9e15, there are integers that cannot be expressed as exact floating point numbers, including most powers-of-ten
[20:17:25] <cradek> jepler: don't get distracted! patch!
[20:17:32] <skunkworks> sorry
[20:20:40] <jepler> cradek: OK, I see you're right about using signbit(css_maximum)
[20:21:02] <jepler> the way you added defensive fabs()es made me think negative numbers might actually appear there
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[20:26:43] <jepler> cradek: OK to apply to 2.4.
[20:27:19] <cradek> did you test? or just also couldn't find a simple fix?
[20:27:25] <jepler> I couldn't find a simple fix
[20:27:38] <jepler> 2.4 isn't building on the machine I have access to, which I think is my own fault
[20:27:48] <jepler> but I'm not too motivated to find the cause at the moment
[20:27:49] <cradek> ouch
[20:27:50] <jepler> /usr/bin/ld.gold.real: objects/emc/usr_intf/xemc.o: in function toolSetOffsetTabAction(_WidgetRec*, _XEvent*, char**, unsigned int*):emc/usr_intf/xemc.cc:1279: error: undefined reference to 'XtStrings'
[20:28:02] <cradek> eh make -k
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[20:33:33] <jepler> I see that this removes all the other uses of EMC_SPINDLE_SPEED except from SET_SPINDLE_SPEED, so it seems likely that you got all the code paths that are problematic
[20:34:26] <cradek> yes
[20:34:59] <cradek> I was tempted to factor out the math which is in three places, but I couldn't do it simply because they end up sending different messages
[20:35:21] <cradek> I'll test some more and push, thanks
[20:35:48] <jepler> OK
[20:35:54] <jepler> thanks
[20:48:01] <CIA-123> 03cradek 07master * r1113a06a65f3 10/src/emc/ (5 files in 3 dirs): Fix incorrect spindle direction after g43 in css+m4 mode
[20:48:02] <CIA-123> 03cradek 07master * rdb5a7715e599 10/src/emc/ (5 files in 3 dirs): Merge branch 'v2.4_branch' into v2.5_branch
[20:48:07] <CIA-123> 03cradek 07master * r9613708b5dc3 10/ (7 files in 5 dirs): Merge branch 'v2.5_branch'
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[23:30:50] <skunkworks__> logger[psha]:
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[23:58:54] <alex4nder> hey