#emc | Logs for 2009-09-11

[02:05:41] <SWPadnos_> SWPadnos_ is now known as SWPadnos
[02:06:00] <Jymm> SWPadnos: yo
[04:29:07] <SWPadnos_> SWPadnos_ is now known as SWPadnos
[06:26:21] <Valen1> Valen1 is now known as Valen
[08:14:35] <numen> moin
[09:50:50] <MarkusBec_away> MarkusBec_away is now known as MarkusBec
[11:10:26] <jthornton> http://www.linuxcnc.org/component/option,com_kunena/Itemid,20/func,view/catid,10/id,808/lang,en/
[11:17:52] <archivist> there was a question in here last night that went unanswered
[11:18:53] <archivist> I can see a need for sliding head lathe, the change is mid run
[11:20:55] <jthornton> I thought I had read something about that maybe on the mailing list or on here but forgot
[11:21:14] <archivist> http://www.youtube.com/watch?v=weJQS0WkqdY
[11:21:25] <archivist> a good example
[11:21:37] <jthornton> looking
[11:22:26] <archivist> if I win the old sliding head in the basement I want to do that
[11:22:46] <jthornton> that's pretty cool
[11:23:30] <fenn> ahh, machine tool porn complete with 1970's music
[11:25:10] <archivist> I have no sound so its just eye candy/porn for me
[11:25:39] <jthornton> does it sound possible to switch between spindle and A axis?
[11:26:00] <archivist> but that sure shows the spindle in both modes
[11:26:36] <archivist> one can abuse A so it appears to be spindle now
[11:27:12] <archivist> but there are some offset oddities
[11:27:16] <fenn> archivist: how do you do that?
[11:27:58] <fenn> i thought the main problem was that you can't just set an angular axis' feedrate and forget it
[11:29:37] <archivist> my helical worm gcode is just a g1 ..... that has numbers to suit
[11:29:37] <archivist> hmm should I reply to that thread in that manner
[11:30:06] <jthornton> could you switch between spindle output and A axis output with hal?
[11:30:15] <archivist> thats the main problem I fiddle F till it seems ok
[11:30:48] <jthornton> sure any input is helpful
[11:33:10] <acemi> for some servo driver, servo driver can switch from one mode to another mode by setting a pin
[11:33:59] <jthornton> why would you not just use a threading G code for the helical worm gear?
[11:34:28] <archivist> because its milled
[11:35:45] <archivist> and done properly the B axis is tilted and x/y are following
[11:39:35] <jthornton> like this one http://t3.gstatic.com/images?q=tbn:w7S3IEnMaoRW3M:http://img1.tradeget.com/unitedenggworks/LLNS9FWI1helicalandwormgears.jpg
[11:42:21] <archivist> yup
[11:43:03] <archivist> you can just see tilt on this one http://www.youtube.com/watch?v=Jbp8SJ9RxqI
[11:43:39] <jthornton> Ok I see now :)
[11:43:47] <archivist> that was packing under the A axis before B was fitted
[11:47:42] <fenn> pardon the stupid question but why does it have to tilt?
[11:47:50] <fenn> are those buttress threads or something?
[11:48:58] <archivist> you get concave sides if you dont tilt
[11:49:19] <fenn> oh
[11:49:32] <fenn> um, i knew that, yeah
[11:52:23] <jthornton> * jthornton is off to work
[11:52:29] <jthornton> talk to you guys later
[13:12:11] <motioncontrol> good morning.i have create a custom M fuction and save in nc_files directory.the M fuction is ok, but i want save the M custom in another directory .is possible?
[13:13:56] <alex_joni> only if you use a symlink to the new location
[13:14:54] <motioncontrol> alex_joni, i want create a directory for nc program and another for M custom is possible ?
[13:15:13] <alex_joni> not at the moment
[13:16:06] <motioncontrol> alex_joni, please can halp me, you know code part for modification?
[13:16:39] <alex_joni> only a bit.. it's in emctaskmain.cc
[13:17:14] <motioncontrol> alex_joni, more thanks
[13:17:52] <motioncontrol> alex_joni, now i study but..!
[13:32:07] <clip9> May i ask why do you need to do this?
[13:37:11] <motioncontrol> alex_joni, i don't understand the directory assignment in emctaskmain.cc.you have small of patience for me.thanks
[13:37:51] <alex_joni> I have a lot of patience ;)
[13:37:59] <alex_joni> only time I don't .. sorry, gotta run from work
[13:41:03] <motioncontrol> alex_joni, ok thanks
[13:41:09] <alex_joni> motioncontrol: I was wrong
[13:41:12] <alex_joni> it's in emctask.cc
[13:41:53] <alex_joni> http://git.linuxcnc.org/gitweb?p=emc2.git;a=blob;f=src/emc/task/emctask.cc;h=f746dcf695b8e8e1bcffda736f03cb38d2dd884a;hb=HEAD#l62
[13:42:02] <alex_joni> bbl
[13:42:59] <motioncontrol> alex_joni, ok alex i study.i don't want disturbe you , but you are more expert of me.thanks for help
[16:13:07] <Jymm> Hola!
[18:58:39] <Skullworks1> I find this amusing - http://www.thespectrum.com/article/20090909/OPINION/909090303/Mexico+is+outraged+over+influx+of+its+own+citizens%7B/quote
[19:02:14] <Skullworks1> Mainly because most of my income for 2009 will be for working in Guaymas, Sonora MX.
[20:26:43] <Jymm> http://codepad.org/q4G3RfjG
[20:34:08] <archivist> jusiunnesand
[20:51:15] <mikegg> if you are stranded at sea, you can ingest brackish water through the rectum and not get sick
[20:51:22] <mikegg> what did you learn on the internet today?
[22:25:30] <cradek_> cradek_ is now known as cradek
[23:37:22] <ZeroFlex_afk> blaat
[23:37:31] <ZeroFlex_afk> ZeroFlex_afk is now known as ZeroFlex
[23:38:34] <MarkusBec> MarkusBec is now known as MarkusBec_away
[23:39:33] <ilya> ZeroFlex: Will want to sleep again?! ;)
[23:41:29] <ZeroFlex> nope
[23:41:33] <ZeroFlex> just arrived home
[23:42:22] <ilya> "arrived"? On a helicopter> :)
[23:43:13] <ZeroFlex> would a servo of 3.7nm be any good on axis of an milling machine (the little industrial ones)
[23:43:23] <ZeroFlex> whehe
[23:43:27] <ZeroFlex> on my bicycle
[23:43:29] <ZeroFlex> :)
[23:43:54] <ilya> Mountain bicycle? If yes, cross-country?
[23:44:00] <ZeroFlex> nope
[23:44:14] <ZeroFlex> normal city on, came from the train station
[23:44:22] <ZeroFlex> was out a bit with my girlfriend
[23:44:41] <ilya> How do you leave it in a train station?
[23:45:01] <ZeroFlex> in the cycle stands outside the station
[23:48:08] <ilya> ZeroFlex: And no one steals it?
[23:48:12] <ilya> :O
[23:49:36] <ZeroFlex> mja thats the change you take
[23:49:39] <ilya> ZeroFlex: What if you see price lists for similar machines and see it's characteristics?
[23:49:48] <ZeroFlex> but its not that bad in this part of the country
[23:49:57] <ZeroFlex> i live in a town of approx 40.000
[23:49:58] <ZeroFlex> peeps
[23:50:22] <ilya> We have about 25000 people, I know them all!
[23:50:45] <ZeroFlex> cant find any similar projects, or if i find it, there no specs about the engines
[23:51:04] <ZeroFlex> whehe, you are a well know person then
[23:51:14] <ZeroFlex> is that a bad or a good thing .... :D
[23:54:13] <ilya> ZeroFlex: www.sherline.com has some specs on engines.
[23:56:26] <ilya> ZeroFlex: Also, I * V = P (Watts)
[23:56:48] <ZeroFlex> i =
[23:56:50] <ZeroFlex> v =
[23:56:54] <ZeroFlex> and p = watts ?
[23:57:00] <ZeroFlex> current
[23:57:04] <ZeroFlex> amps
[23:57:05] <ZeroFlex> ?
[23:57:34] <ilya> Should be 0.25 for small hobbyist's machines; and up to 2 KW for industrial machines.
[23:57:58] <ilya> amplified current at the engine gives its power
[23:58:10] <ZeroFlex> owkeej
[23:58:28] <ilya> Not Watts, but Volt-Ampheres
[23:59:02] <ilya> W = some amount of V*A
[23:59:10] <ZeroFlex> hmmm
[23:59:11] <ZeroFlex> k
[23:59:30] <ZeroFlex> (should learn about that some time ago...)
[23:59:42] <ZeroFlex> http://vincent-w.demon.nl/download/servo