#linuxcnc-devel | Logs for 2014-10-26

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[01:07:46] <skunkworks_> read the article in the digital machinist.. mach->linuxcnc. it was ok - few things wrong. The greatest thing was the screenshot shows a latency error...
[01:08:39] <Connor> skunkworks_: It available online for free?
[01:13:30] <skunkworks_> not that I know of
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[01:58:21] <jepler> skunkworks_: ouch
[02:00:50] <skunkworks_> I see that a lot... youtube videos showing the machine running and a rtai error in the lower left of the screen.
[02:02:00] <Connor> I get them sometimes on startup.. I never get them when running the machine..
[02:02:07] <skunkworks_> dad is making parts for my work.. he is doing very well - been a while since he had acutally gone from blueprint to machining..
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[02:02:30] <Connor> How old is he?
[02:02:53] <skunkworks_> jeeze - I don't know exactly. retired - late 60's?
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[02:41:59] <skunkworks_> minimum?
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[04:06:33] <seb_kuzminsky> jepler: if you load down the hypervisor host so the guest is starved for cycles, can you make it fail?
[04:10:59] <KGB-linuxcnc> 03Dewey Garrett 05master 2c56474 06linuxcnc 10src/emc/task/taskintf.cc task: ini_hal_init only when emcmotion_initialized * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=2c56474
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[11:19:54] <KGB-linuxcnc> 03Norbert Schechner 052.6 60689e3 06linuxcnc 10src/emc/usr_intf/gmoccapy/gmoccapy.glade 10src/emc/usr_intf/gmoccapy/gmoccapy.py 10src/emc/usr_intf/gmoccapy/notification.py 10src/emc/usr_intf/gmoccapy/release_notes.txt gmoccapy_1_3_1 - fixed serious bug PAUSE / RESUME / STOP * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=60689e3
[11:22:53] <KGB-linuxcnc> 03Norbert Schechner 05master 32e7737 06linuxcnc 10src/emc/usr_intf/gmoccapy/gmoccapy.glade 10src/emc/usr_intf/gmoccapy/gmoccapy.py 10src/emc/usr_intf/gmoccapy/notification.py 10src/emc/usr_intf/gmoccapy/release_notes.txt gmoccapy_1_3_1 - fixed PAUSE / RESUME / STOP bug * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=32e7737
[11:22:53] <KGB-linuxcnc> 03Norbert Schechner 05master 859c53a 06linuxcnc Merge branch 'master' of ssh://norbert@git.linuxcnc.org/git/linuxcnc.git * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=859c53a
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[14:29:50] <jepler> linuxcnc-build_: force build --branch=liblinuxcnc-ui 0000.checkin
[14:29:51] <linuxcnc-build_> build forced [ETA 1h19m53s]
[14:29:51] <linuxcnc-build_> I'll give a shout when the build finishes
[14:30:25] <jepler> no failures after an hour of running in a qemu --enable-kvm -smp 1 with 8 md5sum /dev/zeros running outside qemu
[14:30:36] <jepler> .. qemu typically gets 8-15% CPU (host is 4 threads)
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[14:54:28] <linuxcnc-build_> build #240 of 1402.rip-wheezy-rtpreempt-i386 is complete: Failure [4failed compile runtests] Build details are at http://buildbot.linuxcnc.org/buildbot/builders/1402.rip-wheezy-rtpreempt-i386/builds/240
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[15:13:10] <linuxcnc-build_> build #2582 of 0000.checkin is complete: Failure [4failed] Build details are at http://buildbot.linuxcnc.org/buildbot/builders/0000.checkin/builds/2582
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[16:30:10] <jepler> and why is it always the halui-jogging test, and not any of the other halui-using tests?
[16:31:02] <archivist> timing/race condition?
[16:34:10] <jepler> this line appears in a successful run as well, shouldn't be relevant: emc/iotask/ioControl.cc 768: can't load tool table.
[16:34:30] <jepler> archivist: I assume it's something along those lines, need to know more specifics before I can fix it though
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[16:47:48] <KGB-linuxcnc> 03Jeff Epler 05liblinuxcnc-ui 660e879 06linuxcnc 10src/emc/usr_intf/emclcd.cc 10src/emc/usr_intf/emcrsh.cc 10src/emc/usr_intf/emcsh.cc 10src/emc/usr_intf/schedrmt.cc UIs: It's OK to lui_free(NULL) * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=660e879
[16:47:48] <KGB-linuxcnc> 03Jeff Epler 05liblinuxcnc-ui cba0825 06linuxcnc 10(10 files in 2 dirs) lui: introduce, use get_command_channel_nml * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=cba0825
[16:47:48] <KGB-linuxcnc> 03Jeff Epler 05liblinuxcnc-ui 1f174b2 06linuxcnc 10src/liblinuxcnc-ui/connect.cc lui: after failure to connect, print details * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=1f174b2
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[16:54:42] <jepler> hmmm have I run all my local tests at the wrong ref?
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[18:00:23] <KGB-linuxcnc> 03Sebastian Kuzminsky 05liblinuxcnc-ui 76a6844 06linuxcnc 10src/emc/usr_intf/shcom.cc fixup! lui: introduce, use get_command_channel_nml * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=76a6844
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[18:42:17] <linuxcnc-build_> build #242 of 1402.rip-wheezy-rtpreempt-i386 is complete: Failure [4failed compile runtests] Build details are at http://buildbot.linuxcnc.org/buildbot/builders/1402.rip-wheezy-rtpreempt-i386/builds/242 blamelist: Sebastian Kuzminsky <seb@highlab.com>
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[18:51:53] <jepler> so so that loop in lui_connect_to_status_nml should be going for about 10 * 1000 * 100 usec = 1 second
[18:52:00] <jepler> could it just be too little time?
[18:55:36] <KGB-linuxcnc> 03Jeff Epler 05liblinuxcnc-ui afb6242 06linuxcnc 10src/liblinuxcnc-ui/connect.cc lui: additional debugging information in lui_connect * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=afb6242
[18:55:36] <KGB-linuxcnc> 03Jeff Epler 05liblinuxcnc-ui 75d35cb 06linuxcnc 10src/liblinuxcnc-ui/connect.cc lui: wait substantially longer for a status buffer * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=75d35cb
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[19:04:00] <linuxcnc-build_> build #2584 of 0000.checkin is complete: Failure [4failed] Build details are at http://buildbot.linuxcnc.org/buildbot/builders/0000.checkin/builds/2584 blamelist: Sebastian Kuzminsky <seb@highlab.com>
[19:05:02] <skunkworks> logger[psha],
[19:06:45] <linuxcnc-build_> build #2574 of 1300.rip-precise-i386 is complete: Failure [4failed compile] Build details are at http://buildbot.linuxcnc.org/buildbot/builders/1300.rip-precise-i386/builds/2574 blamelist: Jeff Epler <jepler@unpythonic.net>
[19:07:30] <linuxcnc-build_> build #2576 of 1306.rip-precise-amd64 is complete: Failure [4failed compile] Build details are at http://buildbot.linuxcnc.org/buildbot/builders/1306.rip-precise-amd64/builds/2576 blamelist: Jeff Epler <jepler@unpythonic.net>
[19:07:51] <linuxcnc-build_> build #1776 of 1301.rip-precise-rtai-i386 is complete: Failure [4failed compile] Build details are at http://buildbot.linuxcnc.org/buildbot/builders/1301.rip-precise-rtai-i386/builds/1776 blamelist: Jeff Epler <jepler@unpythonic.net>
[19:08:04] <linuxcnc-build_> build #2575 of 1200.rip-lucid-i386 is complete: Failure [4failed compile] Build details are at http://buildbot.linuxcnc.org/buildbot/builders/1200.rip-lucid-i386/builds/2575 blamelist: Jeff Epler <jepler@unpythonic.net>
[19:08:17] <linuxcnc-build_> build #2575 of 1201.rip-lucid-rtai-i386 is complete: Failure [4failed compile] Build details are at http://buildbot.linuxcnc.org/buildbot/builders/1201.rip-lucid-rtai-i386/builds/2575 blamelist: Jeff Epler <jepler@unpythonic.net>
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[19:09:25] <linuxcnc-build_> build #2575 of 1202.rip-lucid-amd64 is complete: Failure [4failed compile] Build details are at http://buildbot.linuxcnc.org/buildbot/builders/1202.rip-lucid-amd64/builds/2575 blamelist: Jeff Epler <jepler@unpythonic.net>
[19:10:37] <linuxcnc-build_> build #2574 of 1900.clang-lucid-rtai-i386 is complete: Failure [4failed compile] Build details are at http://buildbot.linuxcnc.org/buildbot/builders/1900.clang-lucid-rtai-i386/builds/2574 blamelist: Jeff Epler <jepler@unpythonic.net>
[19:10:39] <KGB-linuxcnc> 03Chris Morley 05master 5f36422 06linuxcnc 10src/emc/usr_intf/stepconf/build_HAL.py 03src/hal/components/sim_parport.comp replace parport component with sim_parport * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=5f36422
[19:10:39] <KGB-linuxcnc> 03Chris Morley 05master 68912a8 06linuxcnc 04src/hal/components/parport.comp remove parport component * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=68912a8
[19:10:39] <KGB-linuxcnc> 03Chris Morley 05master b4f5ce0 06linuxcnc 10src/hal/components/sim_axis_hardware.comp sim_axis_hardware -remove home-all selection pins, add docs * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=b4f5ce0
[19:13:01] <linuxcnc-build_> build #2372 of 1901.clang-precise-amd64 is complete: Failure [4failed compile] Build details are at http://buildbot.linuxcnc.org/buildbot/builders/1901.clang-precise-amd64/builds/2372 blamelist: Jeff Epler <jepler@unpythonic.net>
[19:14:22] <linuxcnc-build_> build #732 of 1403.rip-wheezy-amd64 is complete: Failure [4failed compile] Build details are at http://buildbot.linuxcnc.org/buildbot/builders/1403.rip-wheezy-amd64/builds/732 blamelist: Jeff Epler <jepler@unpythonic.net>
[19:14:36] <linuxcnc-build_> build #923 of 1404.rip-wheezy-rtpreempt-amd64 is complete: Failure [4failed compile] Build details are at http://buildbot.linuxcnc.org/buildbot/builders/1404.rip-wheezy-rtpreempt-amd64/builds/923 blamelist: Jeff Epler <jepler@unpythonic.net>
[19:14:49] <linuxcnc-build_> build #732 of 1400.rip-wheezy-i386 is complete: Failure [4failed compile] Build details are at http://buildbot.linuxcnc.org/buildbot/builders/1400.rip-wheezy-i386/builds/732 blamelist: Jeff Epler <jepler@unpythonic.net>
[19:15:50] <linuxcnc-build_> build #243 of 1402.rip-wheezy-rtpreempt-i386 is complete: Failure [4failed compile] Build details are at http://buildbot.linuxcnc.org/buildbot/builders/1402.rip-wheezy-rtpreempt-i386/builds/243 blamelist: Jeff Epler <jepler@unpythonic.net>
[19:15:57] <linuxcnc-build_> build #389 of 1401.rip-wheezy-rtai-i386 is complete: Failure [4failed compile] Build details are at http://buildbot.linuxcnc.org/buildbot/builders/1401.rip-wheezy-rtai-i386/builds/389 blamelist: Jeff Epler <jepler@unpythonic.net>
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[19:22:40] <linuxcnc-build_> build #762 of 1405.rip-wheezy-armhf is complete: Failure [4failed compile] Build details are at http://buildbot.linuxcnc.org/buildbot/builders/1405.rip-wheezy-armhf/builds/762 blamelist: Jeff Epler <jepler@unpythonic.net>
[19:22:41] <linuxcnc-build_> build #2585 of 0000.checkin is complete: Failure [4failed] Build details are at http://buildbot.linuxcnc.org/buildbot/builders/0000.checkin/builds/2585 blamelist: Jeff Epler <jepler@unpythonic.net>
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[19:39:48] <KGB-linuxcnc> 03Jeff Epler 05liblinuxcnc-ui ab3c047 06linuxcnc 10src/liblinuxcnc-ui/connect.cc lui: additional debugging information in lui_connect * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=ab3c047
[19:39:48] <KGB-linuxcnc> 03Jeff Epler 05liblinuxcnc-ui c4fadbb 06linuxcnc 10src/liblinuxcnc-ui/connect.cc lui: wait substantially longer for a status buffer * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=c4fadbb
[19:41:57] <jepler> cmorley: thank you!
[19:42:21] <cmorley> your welcome of course :)
[19:59:56] <CaptHindsight> how does one make edits to docs like this one? http://linuxcnc.org/docs/html/common/python-interface.html
[20:01:38] <jepler> CaptHindsight: the source code is at docs/src/common/python-interface.txt
[20:01:49] <jepler> CaptHindsight: configure with --enable-build-documentation to build it locally
[20:03:29] <CaptHindsight> I'll have to try. I've only edited the wiki so far
[20:03:33] <CaptHindsight> thanks
[20:03:50] <jepler> linuxcnc.org/docs/html/ is built from the current release branch, so 2.6 at the moment
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[21:24:06] <jepler> lui_connect_to_status_nml start 1414357678.433515
[21:24:07] <jepler> lui_connect_to_status_nml end 1414357678.837314
[21:24:20] <jepler> so it connected in <.5s
[21:24:23] <jepler> .. in this run
[21:24:30] <jepler> http://buildbot.linuxcnc.org/buildbot/builders/1402.rip-wheezy-rtpreempt-i386/builds/245/steps/runtests/logs/stdio
[21:24:34] <seb_kuzminsky> that's order-of-magnitude of the old 1s timeout
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[21:25:15] <jepler> true
[21:26:06] <jepler> lui_connect_to_status_nml start 1414358751.280913
[21:26:06] <jepler> Waiting for component 'trivkins' to become ready........Waited 3 seconds for master. giving up.
[21:26:09] <jepler> cannot gain I/O privileges - forgot 'sudo make setuid'?
[21:26:09] <jepler> hm in a local run I just got this
[21:26:12] <jepler> Note: Using POSIX non-realtime
[21:26:14] <jepler> lui_connect_to_status_nml end 1414358754.486901
[21:26:17] <jepler> much more than 1s
[21:26:41] <jepler> so maybe it is just slow to start
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[21:27:01] <jepler> seb_kuzminsky: did you copy the timeout logic from somewhere, or was it new?
[21:27:44] <seb_kuzminsky> i rewrote it using inspiration from some old code, i'll look for it
[21:28:13] <jepler> ('Waited 3 seconds for master' is rtapi_app deciding whether it's a new session or not in the case where a previous rtapi_app died uncleanly)
[21:28:24] <jepler> but we don't see a message like that in the failed logs
[21:29:08] <jepler> lui_connect_to_status_nml start 1414358935.414692
[21:29:11] <jepler> lui_connect_to_status_nml end 1414358937.783704
[21:29:31] <jepler> this one after sudo sysctl vm.drop_caches=3 to make everything have to be read from disk
[21:29:51] <jepler> maybe disk/memory pressure, more than CPU pressure, is what made it failure-prone on a vm?
[21:30:17] <jepler> in the normal test order, halui-jogging is the first linuxcnc test after a number of hal-only tests
[21:31:13] <seb_kuzminsky> that's an interesting observation
[21:32:43] <seb_kuzminsky> jepler: i think i first tried no timeout, then i realized that the "wait for first status" needs to spin to wait for Task
[21:32:57] <seb_kuzminsky> the original timeout was in eg halui.cc:tryNml()
[21:33:34] <KGB-linuxcnc> 03Jeff Epler 05liblinuxcnc-ui 43d3f99 06linuxcnc 10(10 files in 2 dirs) lui: introduce, use get_command_channel_nml * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=43d3f99
[21:33:34] <KGB-linuxcnc> 03Jeff Epler 05liblinuxcnc-ui e067885 06linuxcnc 10src/liblinuxcnc-ui/connect.cc lui: after failure to connect, print details * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=e067885
[21:33:34] <KGB-linuxcnc> 03Jeff Epler 05liblinuxcnc-ui 8a0da21 06linuxcnc 10src/liblinuxcnc-ui/connect.cc lui: wait substantially longer for a status buffer * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=8a0da21
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[21:33:39] <jepler> yup, #define RETRY_TIME 10.0 // seconds to wait for subsystems to come up
[21:34:03] <jepler> I feel better now that I could cause the failure on my own system
[21:34:57] <jepler> too bad the weekend went by while I tried to figure it out
[21:35:09] <jepler> I think there are just a few getters left to work on, I'll try to get back to that evenings this week
[21:35:10] <seb_kuzminsky> that drop_caches trick made it fail on your machine?
[21:35:14] <jepler> seb_kuzminsky: yes
[21:35:44] <jepler> .. with the original 1s timeout
[21:36:15] <seb_kuzminsky> maybe task should daemonize itself after the first status message gets emitted?
[21:37:04] <jepler> we are cloes to being able to do that, I think
[21:37:23] <jepler> 55ec5eb runscript: EMCTASK is a HAL component now
[21:37:33] <jepler> it's now loaded with loadusr -Wn inihal
[21:37:50] <jepler> by moving the hal_ready call to the right place, we should be able to ensure that any connecting UI will always have a valid status buffer ready
[21:38:01] <jepler> an interesting thought
[21:38:10] <jepler> bbl
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[21:43:18] <seb_kuzminsky> the first ui would get that first status message and mark it as read, but the later UIs might still need to poll for the next status message
[21:47:05] <Roguish> hey gentlemen, I am working on my bldc setup, one motor keeps throwing a bldc.xx.hall-error problem is there does not seem to be a way to reset the error without shutting down the 7I39 board.
[21:47:40] <seb_kuzminsky> maybe status messages should have a serial number too, instead of the uis racing to set the "has been read" bit
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[21:48:09] <Roguish> not even shutting down lcnc and restarting.
[21:48:57] <seb_kuzminsky> Roguish: try asking andy pugh on the emc-developers list
[21:49:13] <Roguish> the mail list?
[21:49:32] <seb_kuzminsky> yeah
[21:49:36] <Roguish> doesn't he ever hang out here?
[21:49:52] <Roguish> i'm not sure what his nickname is.
[21:49:53] <seb_kuzminsky> very sporadically, lately
[21:50:00] <seb_kuzminsky> it's "andypugh"
[21:50:08] <Roguish> clever.
[21:50:28] <Roguish> ok, i'll write some up and sent to the list.
[21:50:54] <Roguish> hey i see you guys are working on the 'packaging'
[21:51:10] <pcw_home> If the halls are just used for initial alignment you might try debouncing them
[21:51:23] <seb_kuzminsky> yeah, trying to figure out what to do with the new "uspace" packages
[21:51:33] <pcw_home> (since that sounds like a noise issue)
[21:51:35] <Roguish> pwc_home: no they are used for comuation.
[21:52:17] <Roguish> seb: thanks for moving away from ubuntu. getting way too bloaed.
[21:52:26] <pcw_home> if you use QH mode you can do sinusoidal commutation
[21:52:40] <pcw_home> (which is better)
[21:52:58] <pcw_home> less "ticky"
[21:53:12] <seb_kuzminsky> Roguish: i too am glad we're focusing on debian now, but i don't think it's quite right to say we're moving away from ubuntu
[21:53:28] <Roguish> pwc_home: using h mode. just happens on 1 of 4 channels. channel 2 of 2 boards.
[21:53:36] <seb_kuzminsky> we ship an rtai kernel for Ubuntu Precise 12.04, and i hope to do the same for future releases
[21:54:05] <seb_kuzminsky> i bet there are lots of people who percieve ubuntu to be more user-friendly that debian
[21:54:18] <Roguish> seb: for the iso's, i just don't see any reason to include games, and office and such.
[21:54:25] <seb_kuzminsky> haha yeah
[21:55:16] <Roguish> for machine control i like is really, really simple. i don't want an operator playing solitair.... or cruizing porn.
[21:57:23] <Roguish> pcw_home: i have tried switching cabling, motors, cabling and motors. still throws the error.
[21:57:40] <Roguish> same channel every time.
[21:58:31] <pcw_home> probably coupling from PWM to hall signals, are the separated and shielded?
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[21:59:24] <Roguish> pcw_home: is it ok to hot plug the 50pin connector on the 7i39? i always shut the motor power off.
[21:59:46] <pcw_home> Its not a great idea
[22:00:13] <pcw_home> unless you remove 5V cable power first
[22:00:22] <pcw_home> (5I20 jumper)
[22:00:47] <Roguish> do you mean the power pwm to the motor? the motor has a single dsub 15
[22:01:34] <Roguish> if I un-jumper the 5i20 that will kill the 5v ?
[22:01:47] <pcw_home> You mighy try some .01 uf capacitors from HALL input to ground at the 7I39
[22:02:33] <pcw_home> really sounds like noise in the HALL lines
[22:05:34] <Roguish> well, the hall inputs go thru the 10 pin header on ribbon cable 6" long, spliced to individual wires to the dsub, another 6"
[22:06:13] <Roguish> splices are soldered with heat shrink
[22:07:07] <Roguish> maybe Frys has some caps
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[22:16:59] <pcw_home> also a hal error should just be a transient error that probably a BLDC bug/misfeature
[22:19:19] <Roguish> I will try to look into the code, but my programming skill is weak at best. I would think the 'error' should be cleared on starting the 'bldc' comp. yes?
[22:19:45] <Roguish> and maybe even including something to 'reset' an 'error'?
[22:20:13] <seb_kuzminsky> you should talk with andy about it, i bet he knows how an error reset mechanism can fit into the bldc driver code
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[22:23:09] <Roguish> i will try to start a discussion with andy
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[23:47:13] <andypugh> I am trying to use feed-per rev in a hobbing config on my mill. But I am seeign some really strange results.
[23:48:18] <andypugh> To try to get to the bottom of it I put the gearbox in neutral, with a feed-per-rev of 0.1mm.
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[23:49:12] <andypugh> The table moved slowly, probably at about .1mm per rev. (though the spindle wasn’t turning, so no change in motion.spindle-revs _or_ motion.spindle-speed-in )
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[23:50:25] <andypugh> The wierd thing was when I moved the actual spindle by hand, the table moves very rapidly (and not at 60x 0.1mm/rev, in case you were wondering).
[23:51:10] <andypugh> I suppose the main question is which input controls feed-per-rev, speed or position?
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[23:57:16] <andypugh> It may be important that the machine appears to be running an old verson of JA4 with a jog-while-paused patch.
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[23:58:49] <andypugh> motion.spindle-revs increases by 1.00 per rev, just in case you were wondering.