#emc-devel | Logs for 2009-08-05

[02:09:48] <skunkworks> cradek: did you have a chance to look at the spindle drive?
[02:45:49] <cradek> not yet
[02:45:57] <cradek> just got done for the night - all three axes moving
[02:46:34] <cradek> the Y amp has a problem - comes up saying "fuse fault" (the fuse is fine) but if you poke its reset button, it comes up
[02:46:43] <cradek> so I will have to fix (or fool) that
[02:47:09] <cradek> also, it happens to be sitting between two rafters in the garage - pure dumb luck :-)
[02:50:20] <SWPadnos> maybe a loose wire in the supply?
[02:50:31] <SWPadnos> (looks like a blown fuse)
[02:50:38] <cradek> I traced everything obvious, as far as I can tell
[02:50:59] <cradek> also, I swapped the two amps to eliminate any possible wiring problem (problem stayed with the amp)
[02:51:15] <SWPadnos> oh
[02:51:30] <cradek> too bad it's overly smart
[02:51:57] <cradek> it has about a dozen different signals to the control with different faults it detects (sometimes wrongly, apparently)
[02:52:35] <cradek> (seems like having one fault signal and then going and looking at the LEDs would be sufficient!)
[03:06:24] <SWPadnos> hard for the control to look at the LEDs
[03:13:25] <cradek> that's true
[03:13:37] <cradek> I think there's feedback for every fuse that can blow and circuit breaker that can trip
[03:13:43] <SWPadnos> cool
[03:14:17] <cradek> yeah, but I sure won't bother with any of it - I'll put the wiring diagrams in the pocket and call it good
[03:14:26] <SWPadnos> that's one of the things several peop,e had requested of Mariss for his next servo drive - a header so you can wire the LEDs to an external control
[03:14:34] <SWPadnos> people
[13:54:48] <micges> jmkasunich: git logs says that you removed soft limits ;)
[13:55:31] <micges> http://git.linuxcnc.org/gitweb?p=emc2.git;a=blobdiff;f=src/emc/task/taskintf.cc;h=c2e40f9d95cd3d64df83dfaf757671103dbd762c;hp=7f0d215632672b50f68d6b2bf7563bbeea65ac68;hb=fd9bdfed57bb062ecaafdb27cbd499ff72a7bef4;hpb=aba1866822908178b315b2e6cc9ff46ecc79a1df
[15:26:40] <micges> hi seb
[15:28:25] <seb_kuzminsky> good $TIME_OF_DAY_WHERE_YOU_ARE
[15:30:25] <micges> may I ask what are you doing at day work ? (bioserve.colorado.edu)
[15:30:49] <skunkworks_> he could tell you - but he would have to kill you ;)
[15:31:01] <seb_kuzminsky> bioserve is part of aerospace engineering at the university here
[15:31:21] <seb_kuzminsky> we do mostly microbiology experiments in microgravity, on the international space station
[15:31:43] <seb_kuzminsky> but lately we've been doing a bunch of networking experiments (see rfc 5050)
[15:31:57] <seb_kuzminsky> we were first to put linux on the shuttle and station :-)
[15:32:26] <micges> hehe cool
[15:32:52] <skunkworks_> seb_kuzminsky: That has to be on hell of a cool job.
[15:33:34] <micges> skunkworks_: nah he must be bored :)
[15:33:39] <seb_kuzminsky> the technology and scifi stuff is super cool, but there's a *lot* of bs dealing with NASA - they're a lot like the DMV :-(
[15:35:01] <skunkworks_> eww
[15:35:55] <seb_kuzminsky> i was in a meeting with a bunch of nasa "engineers", and vint cerf (patron saint of the internet)
[15:36:07] <seb_kuzminsky> there was a simple technical problem with an obious technical solution
[15:36:27] <seb_kuzminsky> ... that the nasa folks all agreed couldnt be done for nasa-internal political reasons
[15:36:40] <seb_kuzminsky> vint got all upset and had to collect himself for a minute
[15:36:49] <seb_kuzminsky> then he goes "NASA is a four-letter word"
[15:36:52] <seb_kuzminsky> it was classic
[15:37:38] <skunkworks_> heh
[15:37:42] <micges> nice
[15:38:31] <micges> seb: how are you joined to emc development? day work requirement or simple interest?
[15:38:50] <seb_kuzminsky> micges: just personal interest
[15:39:24] <seb_kuzminsky> though i made a proposal to put HAL on an experimental communication device they're bolting to the outside of station :-)
[15:39:37] <seb_kuzminsky> for steering directional antennas :-)
[15:39:46] <seb_kuzminsky> it wasnt accepted :-(
[15:39:47] <skunkworks_> very cool
[15:39:49] <skunkworks_> aw
[15:40:02] <skunkworks_> not expensive enough?
[15:40:03] <skunkworks_> ;)
[15:40:05] <seb_kuzminsky> heh
[15:40:36] <seb_kuzminsky> how about you guys, how'd you get involved?
[15:42:15] <micges> here my friend I'm working with found it as a reliable platform to machine controlling in 06.2006
[15:42:42] <jepler> cradek found old emc1 and it was better than the DOS control for his maxnc. He somehow conned me into writing a user interface for it, and now here I am.
[15:43:26] <seb_kuzminsky> what, xemc didnt cut it for him?
[15:43:31] <skunkworks_> started writing my own machine control in basic about 15 years ago. Then found turbocnc... Then found the bdi... Then found emc2. <- I fell in love with it's flexabillity. I just sort of try to break things. we have some big iron to convert when I get the time.
[15:43:33] <cradek> barely better... got better over time, thanks exclusively to my own involvement, of course
[15:43:40] <jepler> (that was 2004 or so)
[15:44:06] <seb_kuzminsky> heh
[15:45:22] <skunkworks_> I started getting interested when you still had to complile emc2 on the bdi install. Soon after that you guys got the ubuntu script working.
[15:45:37] <cradek> I submitted a few little patches for glaring problems, and paul c added me as a developer right away
[15:46:07] <cradek> the first bug I fixed was when you'd hit escape to abort motion, it would often rapid in some random direction instead of stopping
[15:46:15] <seb_kuzminsky> hah
[15:46:29] <seb_kuzminsky> stop, rapid, who cares?
[15:46:31] <cradek> but my machine was slow, so I learned to hit escape twice fast
[15:46:44] <skunkworks_> that seems like a big bug.
[15:46:47] <cradek> the second escape would stop the extra rapid
[15:47:01] <seb_kuzminsky> aw, it wouldn't rapid off in a new direction each time you hit escape
[15:47:08] <cradek> nope, just once
[15:47:22] <SWPadnos> heh. I think my first commit was one that sped up restart (by not waiting for CYCLE_DELAY in task)
[15:47:34] <SWPadnos> my second was fixing that so it wasn't a CPU hog ;)
[15:48:17] <jepler> I can also thank paul for adding me as a developer. though I didn't actually touch emc2 until 2006
[15:48:39] <jepler> and never committed in emc1, though Chris credits me with some emcplot3d changes in 2004
[15:48:47] <seb_kuzminsky> did paul just go of his meds or something?
[15:49:04] <jepler> I wish I understood
[15:49:58] <skunkworks_> it is fun going back and reading the old irc logs.
[15:50:16] <skunkworks_> from the transision from emc->emc2
[15:50:24] <micges> as I undestand paul left project after adding HAL?
[15:51:18] <skunkworks_> I think he left because of hal :)
[15:52:00] <BJT-Work> after finally getting EMC to install with the LiveCD (never could get the BDI to install) then I tried to figure out what to do with it
[15:53:02] <skunkworks_> I definatly took me a few tries to get the bdi installed. Took the 'right' video card.
[15:55:25] <BJT-Work> I must have collected 3 or 4 flavors of Linux trying to get EMC... every time I found a Linux flavor on sale for $3 I would try again
[15:55:47] <jepler> BJT-Work: speaking of slow net access, any progress on your wireless internet?
[15:55:49] <skunkworks_> I cannot believe how much has been added/improved since I started with emc2. It has been a fun experience.
[15:56:24] <BJT-Work> I have to extend my auger on my post hole digger by 24" to get the hole deep enough to set the base
[15:56:35] <BJT-Work> I'm at 30" deep now
[15:56:59] <BJT-Work> it will be in the ground by this weekend for sure
[15:57:09] <skunkworks_> * skunkworks_ hands BJT-Work a hand post hole digger.
[15:57:30] <BJT-Work> * BJT-Work has one and so does the neighbor
[15:58:01] <BJT-Work> but their only use is to clean the rocks out of the hole after you auger it up
[15:59:21] <BJT-Work> down the hill to the east you can dig 15' deep before you hit rock
[15:59:35] <BJT-Work> on the hill it is rock with a little dirt
[15:59:58] <skunkworks_> yeck
[16:01:09] <BJT-Work> I won't worry about the tower falling down :)
[16:03:21] <BJT-Work> I made the base from 2" sq tube with 1/4" wall... dang thing weighs about 100 lbs
[16:11:40] <skunkworks_> how high?
[16:22:10] <BJT-Work> the base is 5' tall
[16:25:55] <skunkworks_> then they mount their antanna on it?
[16:32:04] <BJT-Work> I mount a 40' tower on that and then they put their antenna on top of that
[16:32:29] <BJT-Work> the tower bolts to the base
[16:32:46] <skunkworks_> ah]
[16:32:48] <BJT-Work> your standard tv tower used before cable
[16:32:54] <skunkworks_> right
[16:33:20] <BJT-Work> I got one from my neighbor and one from a friend's MIL's house
[16:33:35] <BJT-Work> both in their way so free