#emc | Logs for 2010-10-19

[00:03:32] <theorb> theorb is now known as theorbtwo
[00:04:17] <Connor2> Connor2 is now known as Connor_CNC
[00:04:36] <Connor_CNC> Hey guys, I need some simple G Code to just cut out a circle..
[00:08:48] <Valen> G2
[01:07:11] <andypugh> Hi willburrrr2003. You will note that this is largely the same folks
[01:07:22] <willburrrr2003> I was seeing that in the list hehe
[01:08:17] <willburrrr2003> I am kind of new to IRC so getting a feel for it since I am going to be trying a full install of EMC2 tonight onto the pc that will be running my minilathe project
[01:08:52] <andypugh> It's worth having the iRC here.
[01:09:29] <andypugh> Though you might find it a bit quiet and unresponsive, it's perhaps a little late.
[01:10:41] <andypugh> I think I am the last of the euros still awake (2am here) and that is not likely to be for much longer.
[01:13:44] <andypugh> Night all
[01:13:49] <willburrrr2003> thats the fun of time zones :)
[01:33:02] <Connor_CNC> I'm having some strangness with my Z-Axis..
[01:33:14] <Connor_CNC> How do most people have Z setup for Home, and Min/Max?
[01:42:41] <atmega> I have up min (up) only and home on it
[01:42:52] <atmega> perhaps that is max
[01:53:11] <cradek> almost always - up all the way is zero, and is the home position. downward is negative from there
[02:00:21] <atmega> I had another switch to put in for max, but it seemed pointless
[02:01:05] <atmega> I guess I could use it to keep the slide from overtravelling, but the tooling would crash long before that
[02:16:48] <Connor_CNC> Can someone help me figure something out.. I'm trying to make a template for cutting a circle using a manual router.. The bit I'll be using to CU T the template will be 1/4 bit.. My Manual router will be using a 1/8" bit, and a .620" bushing... If I want a hole 4.6", How much bigger Do I need to cut the template?
[05:46:18] <Connor_CNC> /join #makergear
[12:41:06] <skunkworks> does anyone know off the top of their head how much headroom stepconf gives the stepgen now?
[12:41:52] <skunkworks> (*acceleration)
[12:43:33] <SWPadnos> http://git.linuxcnc.org/gitweb?p=emc2.git;a=blob;f=src/emc/usr_intf/stepconf/stepconf.py;h=762ea85a0ac250c7add8aa0f1274fa689703651b;hb=HEAD#l616
[12:43:36] <SWPadnos> 25%
[12:44:22] <SWPadnos> but that's accel only, I don't see anything for velocity
[13:04:21] <skunkworks> SWPadnos: thanks. They dropped velocity headroom.
[13:04:31] <skunkworks> iirc
[13:04:31] <SWPadnos> apparently
[13:04:44] <SWPadnos> ye4ah, it's set acouple of lines above accel
[13:04:46] <SWPadnos> -4
[13:13:10] <skunkworks> SWPadnos: are you back home?
[13:13:16] <SWPadnos> yep
[13:13:22] <SWPadnos> until about noon tomorrow ;)
[13:14:30] <skunkworks> yikes - back to toranto?
[13:14:41] <SWPadnos> nope. New York this time, for fun
[13:17:54] <skunkworks> cool
[13:19:09] <Guest818> Silly EMC isnt booting to the desktop. I get the background but have no icons or menu bar
[13:19:40] <atmega> that sounds like Ubuntu, not emc.
[13:19:49] <SWPadnos> did you change video cards?
[13:20:08] <Guest818> true
[13:20:10] <Guest818> aye
[13:20:12] <Guest818> you got me
[13:20:20] <Guest818> I took out my old card..
[13:20:46] <atmega> I have to do the recovery boot, 'try to fix x server' about every other time I reboot (not changing any hardware)
[13:21:05] <Guest818> right
[13:21:12] <Guest818> it works about 25% of the time
[13:21:34] <Guest818> Old black dell flip top case, who knows what it is.
[13:22:02] <SWPadnos> well, you need to get to a command line and run "sudo dpkg-reconfigure -phigh xserver-xorg"
[13:22:16] <Guest818> oh, can do that
[13:22:21] <SWPadnos> while connected to the net, possibly
[13:22:35] <Guest818> uh
[13:22:36] <Guest818> not online
[13:22:42] <SWPadnos> (I don't know if it will want to download packages)
[13:22:54] <SWPadnos> well, it may not try to download anything
[13:22:58] <Guest818> Understood
[13:23:07] <SWPadnos> might just use vesa or something
[13:23:17] <Guest818> can't default it away from said interwebs w/ commanline?
[13:23:26] <SWPadnos> then sudo /etc/init.d/gdm restart
[13:23:39] <SWPadnos> probably no need actually
[13:23:44] <Guest818> k
[13:23:45] <SWPadnos> just try it and see if it complains :)
[13:23:46] <Guest818> good :)
[13:24:24] <L84Supper> SWPadnos: any hints on what that hardware configuration was with the <2uS latency jitter?
[13:24:32] <SWPadnos> yep, one sec
[13:24:40] <Guest818> lol now my kbd isnt working
[13:24:44] <Guest818> went into xterm
[13:24:47] <Guest818> session
[13:24:53] <Guest818> and no kbd
[13:25:13] <SWPadnos> you have to run that from a text console, not an X terminal
[13:25:23] <SWPadnos> since it probably kills X (and the terminal ...)
[13:25:29] <Guest818> k
[13:25:31] <Guest818> Im there
[13:25:56] <SWPadnos> L84Supper: http://www.acrosser.com/products/AR-ES0892_detail_id_413.html
[13:26:21] <L84Supper> thank you
[13:26:22] <SWPadnos> it's even got PCI and PCIe x16 slots
[13:26:25] <SWPadnos> sure
[13:26:48] <SWPadnos> expensive as hell though, $800-ish with C2D T5600, 1G, and an 8G SSD
[13:27:05] <SWPadnos> might be less with higher specs, actually
[13:27:18] <SWPadnos> but that's the config that I got the very good latencies with
[13:27:48] <L84Supper> i945 interesting, I'm wondering how much BIOS tweaking has to do with it
[13:28:00] <SWPadnos> no idea
[13:28:29] <SWPadnos> it may have more to do with less crap being turned on/used in the chipset
[13:28:48] <SWPadnos> there's one audio output - a headphone jack (or miniphone stereo anyway)
[13:28:57] <L84Supper> even the i945 Atom boards on the wiki do pretty well
[13:28:59] <SWPadnos> no PS2 jacks
[13:29:02] <SWPadnos> yeah
[13:29:26] <Guest818> shucks, still no menubar
[13:29:45] <SWPadnos> Guest818, there's probably a problem with the Gnome session not getting restored
[13:30:04] <SWPadnos> you may want to try a reboot (I don't know what has to be restarted to get that going again)
[13:32:23] <Guest818> rebooting>fail>attempt command w/X killed>reboot>fail
[13:32:39] <Guest818> It does however make fun jungle sounds upon boot
[13:35:40] <SWPadnos> what do you mean "attempt command w/X killed"?
[13:36:12] <Guest818> x is not running.
[13:37:00] <SWPadnos> which command, the dpkg-reconfigure one?
[13:37:04] <Guest818> yeah
[13:37:10] <Guest818> didnt do anything
[13:37:20] <qq-> Guest818, try, as root > X -configure :1 < it will generate a new xorg.conf.new in /root/xorg.conf.new,
[13:37:27] <Guest818> deal
[13:37:30] <SWPadnos> did it take a little while to do nothing?
[13:37:40] <Guest818> nah, usual doin nothin time
[13:37:45] <Guest818> as if it were doing something
[13:37:57] <Guest818> but then doesnt
[13:39:06] <Guest818> ctrl+alt+backpsace doesnt kill X anymore
[13:39:16] <Guest818> damn, why must things I finally learn change
[13:40:18] <Guest818> ctrl+alt+delete doesnt even work anymore
[13:40:33] <cradek> you can allow ctl-alt-bs in gconf editor ... somehow
[13:40:46] <cradek> but it's per-user which is stupid
[13:40:59] <SWPadnos> there's a setting in the menus somewhere also
[13:41:00] <Guest818> how usefule...
[13:41:06] <SWPadnos> which may be global
[13:41:09] <Guest818> ful*
[13:41:31] <Guest818> debian + EMC, where is it?
[13:41:31] <SWPadnos> if you're at a terminal, run dmesg and see what went wrong
[13:41:32] <Guest818> :P
[13:42:02] <SWPadnos> probably DBUS or something went awry, so none of the UI parts can talk to each other (or something like that)
[13:42:50] <Guest818> someone apparently took its buffers
[13:43:14] <Guest818> it says tho, "I will go on reclaiming the buffers anyway." end statement
[13:44:02] <Guest818> Which Im sure has no relationship to my desktop woes either way.
[13:48:15] <Guest818> Ohhhh, I was just reading the bugfix..I'm pleased to announce emc 2.4.3, a new release of emc2 with a number of bugs fixed. Excluding the fact it will not effing work whatsover, for Guest818.
[14:02:45] <psha> Guest818: you may use Alt-SysRq-K to kill X session
[14:02:53] <psha> or reenable Alt-Ctrl-Backspace in config
[14:11:55] <psha> gnome panel may be started manually
[14:12:03] <psha> run gnome-panel from xterm
[14:14:55] <lilalinux> I need a vmware image of Ubuntu + EMC2 only for visualizing the G-code tool path.
[14:14:58] <lilalinux> Is there one available?
[14:17:28] <SWPadnos> I don't think so. what OS would you be hosting on?
[14:17:57] <SWPadnos> if you have Linux, you can just compile or install the sim version of emc, which doesn't need any special hardware or realtime kernel
[14:22:39] <Guest818> @psha TY =D
[14:25:06] <qq-> Guest818, it worked ?
[14:28:40] <lilalinux> I'm on OS X and if I choose sim->axis_mm from the configuration screen, it crashed
[14:28:55] <lilalinux> Can't execute server program emcsvr
[14:28:55] <lilalinux> Shutting down and cleaning up EMC2...
[14:28:55] <lilalinux> ./emc: line 393: -x: command not found
[14:31:23] <atmega> do you specifically need emc, or just any tool path viewer?
[14:31:24] <SWPadnos> OS X isn't Linux, so you will need to create a VM or something
[14:31:42] <lilalinux> SWPadnos: hence my initial question :-)
[14:31:50] <SWPadnos> yeah, I see that :)
[14:32:05] <lilalinux> :-)
[14:32:44] <lilalinux> atmega: do you have an alternative?
[14:33:17] <atmega> dunno about OSX, but there are several win* g code viewers
[14:39:00] <atmega> lila: http://www.macosxfreeware.com/pleasant3d-1-0-viewer-for-stl-and-gcode-files/ perhaps
[14:39:18] <lilalinux> yes, that would be great
[14:39:21] <lilalinux> if I had 10.6 :-)
[14:39:27] <lilalinux> I'm still on 10.5 :-/
[14:39:47] <atmega> boot linux
[14:40:18] <lilalinux> haven't got it on my macbook
[14:40:20] <lilalinux> * lilalinux hides
[14:42:03] <atmega> as nifty as macs are...
[14:42:25] <SWPadnos> they're annoying as hell actually
[14:43:47] <atmega> I know, but he spent all that money on a mac book and I didn't want him to feel bad
[14:43:52] <SWPadnos> I was trying to copy a directory tree off a server, so I dragged it from point A to point B, the mac cheerfully looked over all the files, and then stopped with a dialog box saying (something like) "One or more of the files cannot be copied because you don't have permission to read them" (Stop) (Ignore) (Cancel)
[14:44:07] <SWPadnos> there was no way to find out *WHICH* file(s) were the problem
[14:44:16] <SWPadnos> so I could, you know, correct it ...
[14:44:22] <atmega> should be a (Do it anyway, bitch)
[14:44:34] <SWPadnos> no, because I wanted to copy all the data
[14:44:47] <SWPadnos> so I didn't want a partial copy, without knowing which things were left out
[14:44:56] <SWPadnos> I'm sure "ignore" was the do it anyway option
[14:45:08] <SWPadnos> but there really should have been a "more info" button too
[14:45:50] <atmega> open a terminal and rsync it
[14:45:55] <SWPadnos> I guess since the user is expected to be too stupid to correct any problem, they don't need to have an option to get more info
[14:46:07] <SWPadnos> I didn't have rsync set up on the server
[14:46:17] <SWPadnos> do macs even come with an rsync client?
[14:46:40] <atmega> no clue, I haven't used a mac since 1993ish
[14:46:58] <SWPadnos> I'm pretty sure you aren't missing much
[14:47:00] <atmega> but, they look pretty!
[14:47:34] <SWPadnos> yeah, that's mostly true
[14:47:50] <lilalinux> I'll try the live cd with vmware
[14:47:51] <lilalinux> http://linuxcnc.org/index.php?option=com_content&task=view&id=21&Itemid=4&lang=en
[15:06:45] <lilalinux> Which sim should I use?
[15:06:56] <cradek> sim/axis
[15:06:57] <lilalinux> I have a self made 3-axis portal
[15:06:58] <lilalinux> k
[15:07:34] <SWPadnos> the liveCD isn't the best thing to use in a VM, since it's still a realtime system (those don't tend to work well in a VM)
[15:07:57] <cradek> you could uninstall emc2 and install emc2-sim
[15:08:14] <SWPadnos> you're much better off creating a VM with a ~4G drive size, installing normal Ubuntu, and then installing emc2-sim according to the directions on the wiki
[15:08:30] <SWPadnos> cradek, that still leaves the RT kernel though, doesn't it?
[15:08:44] <cradek> yes, but that doesn't matter
[15:08:53] <cradek> (for any reason I can think of)
[15:09:03] <SWPadnos> I don't remember whether RT applications have to be loaded, or whether the RT-capable kerel doesn't virtualize well
[15:09:27] <SWPadnos> running in a virtual machine is the only reason I can think od
[15:09:29] <SWPadnos> of
[15:12:07] <skunkworks> I love the smell of new electronics
[15:14:36] <lilalinux> SWPadnos: I only want to visualize the gcode
[15:14:38] <lilalinux> nothing else
[15:15:04] <SWPadnos> yep. I'm suggesting what I think is the best way to do that (in a VM)
[15:15:29] <SWPadnos> install stock Ubuntu into a VM, then install emc2-sim
[15:16:03] <Paragon39> 7i43 still no show today... Getting impatient ;-)
[15:16:09] <SWPadnos> that will give you a full emc2 installation which can be used to preview G-code, as well as other things
[15:17:28] <skunkworks> Paragon39: have you checked the tracking number?
[15:17:59] <Paragon39> skunkworks: Yes the last entry is for the 8th leaving Oakland.
[15:18:11] <lilalinux> SWPadnos: the live cd worked fine in ubuntu
[15:18:14] <lilalinux> mission completed
[15:18:19] <SWPadnos> ok, grerat
[15:18:24] <lilalinux> thanks for your support
[15:18:37] <lilalinux> gotta go now
[15:18:50] <SWPadnos> see you
[15:19:15] <skunkworks> Paragon39: yeck.
[15:20:02] <skunkworks> ups ground took about 1 week to get here. (midwest usa) ordered it tuesday - got it monday.
[15:20:20] <SWPadnos> different from the UK :)
[15:20:43] <skunkworks> right - I was just saying - it is probably going to take atleast a week ;)
[15:20:58] <SWPadnos> indeed
[15:23:08] <skunkworks> hmm - what to work on next. Pallet changes? B axis? Tuning?
[15:23:14] <Paragon39> Oh for sure... I just thought it would have arrived today ... writing off monday after the weekend. It's been 11 days now. I think Mesa mentions it could be between 6 to 10 days. I'm just hoping it's not gone astray in the post is all.
[15:37:36] <SWPadnos> that's 6 to 10 business days
[15:38:06] <SWPadnos> if it's not there on Friday or possibly next Monday, then you should start to get worried
[15:42:41] <Paragon39> SWPadnos: So it is... It's only been nine days then.
[15:45:19] <Paragon39> Do you think a iso30 clarkson autolock collet chuck would hold a straight shank home made fly cutter sufficiently enough for use?
[16:29:36] <JT-Work> balanced fly cutter?
[16:31:52] <JT-Work> http://www.practicalmachinist.com/vb/general/max-diameter-flycutter-144309/
[16:55:59] <Jymmm> Morning
[16:56:29] <Connor> Is there a way to get a ANGULAR Axis to output in RPM instead of deg/min ?
[16:58:36] <SWPadnos> hmmm. I don't think there's a way of telling EMC that an angular axis has units of revolutions vs. degrees
[16:59:15] <SWPadnos> if it exists, it's an ini setting ([AXIS_N]UNITS I think)
[16:59:55] <Connor> Heck, even a simple external script would work.. a pyvcp
[17:00:36] <SWPadnos> well, your question is malformed :) the output from the motion controller is a position in degrees, not a velocity in degrees/min
[17:01:16] <SWPadnos> A B and C are always in degrees, regardless of the units of the axis (according to http://www.linuxcnc.org/docs/2.4/html/config_ini_config.html#sub:%5BTRAJ%5D-section )
[17:01:30] <Connor> Well.. Jog Speed for angular is in deg/min, divde deg by 360 ?
[17:02:02] <SWPadnos> ok, feed rates are in deg/min (A10 F10 should take 1 minute to move 10 degrees)
[17:02:47] <SWPadnos> you could just lie to emc and set up the scale in HAL so that 1 unit is 1 revolution
[17:03:06] <SWPadnos> ie, if you have 100 steps per degree, just tell emc that the SCALE is 36000
[17:03:43] <SWPadnos> but make sure you reduce the max velocity and max acceleration accordingly, since emc will think it's doing degrees still
[17:04:33] <Connor> ok.
[18:01:45] <elmo42> elmo42 is now known as elmo40
[18:31:36] <jepler> http://hackaday.com/2010/10/19/machining-an-slr-camera-from-scratch/
[18:55:58] <Jymmm> jepler: cool
[19:27:10] <willburrrr2003> good day to all
[19:28:50] <willburrrr2003> general emc2 lathe question... if EMC2 doesn't have control of the spindle speed, but can ead the spindle speed via encoder can I set spindle to a known speed ad perform threading operations?
[19:29:31] <willburrrr2003> btw sorry bout mistyping have a bum kb here...
[19:30:43] <cradek> you must have spindle feedback via encoder to thread
[19:30:53] <skunkworks> willburrrr2003: yes. - the encoder has to have an index pulse.
[19:30:54] <cradek> what controls the spindle speed is irrelevant
[19:32:12] <willburrrr2003> i have encoder for the speed feedback, but I have no way to control the spindle speed through EMC2 . I have to set the speed with the lathe's gearing and speed pot. Is this sufficient along with the speend feedback via encoder for threading?
[19:32:33] <cradek> yes that's just fine
[19:32:35] <willburrrr2003> ahhhh ok great
[19:32:49] <cradek> just be sure you set a spindle speed that allows your Z axis to keep up
[19:33:12] <willburrrr2003> makes sense :)
[19:34:29] <willburrrr2003> can't wait to try that, but had setback lastnight. I could not get my lathe's pc to read teh emc disk... works fine in my desktop though. I will have to try another pc tonight.
[19:34:46] <cradek> cdroms never work very well, do they
[19:34:59] <willburrrr2003> hehe nope
[19:35:18] <DaViruz> could be worse, it could have been a floppy
[19:36:04] <willburrrr2003> and lunch breaks are too short.... talk to you guys later, thanks for answering my question so fast :)
[21:07:12] <tom3p> someone asked about mirroring file? heres a bit of it http://sourceforge.net/projects/mover-mvc/
[21:11:57] <SWPadnos> pcw_home, does the 3x20 have PCIe signals on the massive headers as well as on the external connector?
[21:13:16] <SWPadnos> (the real question is whether the cable connects to the 7i68 or to the 3x20 for a cabled setup)
[21:14:38] <SWPadnos> ah, nevermind. "...or through its motherboard connector", right from the description
[21:15:07] <tom3p> re mirroring ( and more to the point, a suite of python tools ) 'CNC GCODE Coordinate Transposition Tool' http://sourceforge.net/projects/gcodetransposer/
[21:19:40] <skunkworks> seb!
[21:19:45] <seb_kuzminsky> hi!
[21:21:26] <skunkworks> how is your bridgeport doing?
[21:21:34] <seb_kuzminsky> great! making parts :-)
[21:21:48] <seb_kuzminsky> looks like your machine is coming along nicely
[21:22:07] <skunkworks> yes - so far so good. did you see - http://www.youtube.com/watch?v=KplU8hkI0AQ
[21:22:46] <seb_kuzminsky> very cool
[21:23:05] <seb_kuzminsky> you should make a video of you riding around on that huge Y axis
[21:23:25] <skunkworks> heh - dad was standing on it the other day while homing.
[21:23:37] <seb_kuzminsky> first chips when? ;-)
[21:24:17] <skunkworks> soon :) that is all I can say at the moment. I have to get the pallet transfer working - both pallets are off the machine right now
[21:42:08] <Paragon39> FYI.. I have managed to improve the work holding of the abwwod vice. There is still a slight lift but I think I can improve it further. On closer inspection of the removable jaws I noticed very slight burghs around the screw mounting holes. I filed them down and it has help a great deal.
[22:53:38] <alex_joni> http://www.theregister.co.uk/2010/10/19/simpsons_vatican/
[23:02:43] <skinnypup> http://www.youtube.com/watch?v=8VLjDjXzTiU
[23:33:06] <mikeggg> shit, that's some big iron skunkworks
[23:33:41] <skunkworks> :) the only way to go?
[23:34:20] <mikeggg> wifey would never let me put that in the garage!
[23:35:29] <andypugh> It's a toy compared to Stuart's Cincinatti
[23:35:38] <skunkworks> no - stuarts is bigger
[23:35:51] <skunkworks> believe me - I have seen his machines in person :)
[23:35:58] <andypugh> That is what I meant
[23:36:10] <skunkworks> heh - totally read that wrong )
[23:43:42] <skunkworks> you would think English wasn't my first and only language
[23:50:00] <atmega> american, huh.
[23:54:00] <skunkworks> does it show?
[23:55:30] <Paragon39> Howdie Fella's... Does anyone know what the ration or leway one should give with an 1ph -> 3ph digital inverter? The reason I ask is that I own a Boxford AUD which uses a 3ph 1hp / .75Kw motor. When I start the drive I need to give the spindle a tug to get it moving. Now Im not sure how stiff the spindle should be on this particuliar lathe so it could be that the there is an issue there or...
[23:55:32] <Paragon39> ...it's an issue with using an underated phase controller. Which off the top of my head is rated for .75Kw! ??
[23:57:47] <JT-Hardinge> if it is a .75kw VFD it should run a .75kw motor AFAIK\
[23:58:03] <Paragon39> Another dissapointing outcome is that the cuts that I am able to take seem to very light before the inverter shutsdown.
[23:58:19] <Paragon39> JT-Hardinge: I would have thought so too.
[23:59:25] <andypugh> You probably need to tweak a current limit or something
[23:59:46] <JT-Hardinge> do you have an amp meter to check the actual amps?
[23:59:51] <andypugh> My lathe has a .75kw inverter, and certainly does not need a tug to get going