#emc | Logs for 2010-08-01

[00:01:02] <skunkworks> have not looked yet.
[00:01:35] <Jymmm> skunkworks: Well, don't thank me yet =)
[00:04:37] <theorb> theorb is now known as theorbtwo
[04:30:30] <madsci44> its too quiet
[05:11:01] <GarageSeb> D drill in Al, WD-40 for lube/coolant: how's 500 rpm & 4 ipm sound?
[05:16:16] <madsci44> thats a load of like 0.008" ?
[05:19:49] <madsci44> you mean a letter size D ?
[05:20:04] <GarageSeb> yes letter size D, .246 diameter i think
[05:22:42] <GarageSeb> madsci44: right, .008 inches/rev, 2 flutes on my drill bit, so .004 inches/flute
[05:22:50] <GarageSeb> does that sound sane? i suck at machining
[05:22:58] <GarageSeb> it's a stubby drill bit fwiw
[05:23:45] <madsci44> yeah it sounds ok diameter is about 0.25" ? i would maybe go more like 1000 rpm
[05:24:01] <GarageSeb> cut the chip load in half
[05:24:02] <GarageSeb> ok
[05:24:04] <GarageSeb> i'll try!
[05:24:05] <GarageSeb> thanks!
[05:24:15] <madsci44> k
[05:25:21] <eztam> hello
[05:25:27] <madsci44> hi
[05:25:31] <kellie> hi
[05:25:38] <eztam> hello madsci
[05:25:41] <eztam> hello kellie
[05:29:20] <kellie> can anyone here answer a q about world/joint modes and gantrykins?
[05:29:50] <eztam> no idea
[05:29:58] <kellie> ha
[05:30:01] <kellie> ok
[05:30:33] <eztam> i am happy in solving the backlash problem
[05:31:44] <madsci44> i probably cant but maybe heh
[05:31:49] <madsci44> whats the question?
[05:33:07] <kellie> ok, I have a bot with 2 motors on the x axis
[05:33:13] <kellie> they are linked with gantrykins
[05:33:19] <kellie> and that works
[05:33:28] <kellie> but only in world mode
[05:34:21] <kellie> if I jog in joint mode.. it can throw everything off
[05:34:34] <kellie> because it only moves 1 motor
[05:35:27] <madsci44> are you homing them first?
[05:35:30] <kellie> yes
[05:35:40] <kellie> have to home in joint, as far as i can tell
[05:36:16] <madsci44> yeah my understanding was for that purpose there needs to be the separated control but i would have thought theyd jog together
[05:39:55] <kellie> do you know if it would be possible to boot emc into world mode automatically?
[05:40:09] <kellie> a config option or something
[05:40:52] <madsci44> when i ran gantrykins (i did not have them linked via that) i could not find a way to keep it in world mode
[05:41:03] <madsci44> whenever i was in manual tab it was joint
[05:41:35] <madsci44> is your version recent?
[05:41:41] <kellie> yes
[05:42:13] <madsci44> you did the setp thing for linking the joint in the hal file?
[05:42:48] <kellie> ya
[05:44:05] <madsci44> guess i dont know enough about it to help - if it were me i would be checking my configs against examples and researching if thats how others work
[05:44:23] <kellie> thanks
[05:44:34] <kellie> I've been googling tonight
[05:44:47] <kellie> I've found other examples.. but no one has mentioned the world/joint thing
[05:45:53] <madsci44> I didnt have the jog issue since as i said they werent linked - but i did ask on here once if i could get it to stay in world mode on manual and i was told not
[05:46:05] <kellie> I saw a forum post on emc site that is about a year old.. it said they were rewriting how world and joint modes would work
[05:46:21] <madsci44> yeah i remember reading that also
[05:46:23] <kellie> the post is so old.. I don't really know if that has happened
[05:47:19] <madsci44> gantrykins I think was made specifically for that purpose tho - linked joint - seems wrong that it wouldnt jog together after all are homed
[05:48:37] <kellie> ya
[05:48:45] <kellie> well, I appreciate your help
[05:48:55] <kellie> I'll let you know if I figure it out
[05:49:25] <madsci44> sorry i couldnt be more useful - in the daytime probaby 10 people at any given time could tell you right away what to do
[05:49:37] <MattyMatt> maybe the manual mode is supposed to always go down to the single motor level? perhaps you need MDI buttons to work above the HAL level with the kins
[05:49:37] <kellie> I'll hang around then
[05:51:08] <kellie> maybe
[05:51:49] <MattyMatt> you could slave one motor to the other, but gantrykins is "a better solution"
[05:52:25] <kellie> how do you mean?
[05:52:38] <MattyMatt> http://www.listware.net/201007/emc-users/88752-emc-users-hal-for-gantry-kinematics.html
[05:53:47] <kellie> ah, thanks :)
[05:54:23] <MattyMatt> that's only a week ago
[05:57:23] <madsci44> isnt the loadrt line supposed to be like "loadrt gantrykins coordinates=XYZ" or "loadrt gantrykins coordinates=XYZA"
[06:00:35] <kellie> mine is just loadrt gantrykins
[06:01:16] <madsci44> or like coordinates=XYZX i remember reading something like that vaguely
[06:02:59] <madsci44> it seems redundant with the setp linking the joints to axis lines but maybe relates it to joint vs world mode? (im only guessing)
[06:11:27] <kellie> my friend/co-worker did the setup.. but it looks like a copy of this:
[06:11:36] <kellie> http://media.unpythonic.net/axis-files/01162326817/sim-xyyz.hal
[06:25:34] <madsci44> so for yours joint 3 would correspond to 0 like setp gantrykinds.joint-3 0 ? if X is your double axis
[06:26:02] <madsci44> er gantrykins sorry typo
[06:34:41] <kellie> we use joint 6 for extra x
[06:35:01] <madsci44> 6? why?
[06:35:02] <kellie> I have to go for a bit.. but i'll be lurking
[06:35:05] <madsci44> ok
[06:35:16] <kellie> once again, I appreciate your help
[06:35:30] <madsci44> good luck with it
[06:35:42] <kellie> ty :)
[08:33:26] <Birdman3131> Birdman3131 is now known as birdman3131|zzzz
[12:56:23] <maximilian_h> Nothing serious, but the website still lists 2.4.1 as the latest release, although 2.4.3 is the current stable release
[13:07:13] <jthornton> hmmm, the 10.04 rtai install from yesterday chokes on virtualbox ose :/ and won't run it complaining about the kernel
[14:09:56] <alex_joni> maximilian_h: working on that now
[14:14:12] <maximilian_h> Hey Alex :) Thanks.
[14:33:19] <alex_joni> maximilian_h: should be done now
[16:22:43] <Fox_M|afk> Fox_M|afk is now known as Fox_Muldr
[16:43:26] <IchGuckLive> Hi Im working on a new Py for emc to cocket simple g-code ->http://www.pictureupload.de/originals/pictures/010810184239_pock_a.png
[16:48:46] <MattyMatt> nice. I need that function in mGcode
[16:48:58] <MattyMatt> the blender script
[16:51:55] <IchGuckLive> im not done with all yet
[16:52:21] <MattyMatt> another handy function would make oval pockets (2 circles, maybe different sizes, connected by tangents)
[16:52:53] <IchGuckLive> mGcode is this for blender 2.49b
[16:53:07] <MattyMatt> yes, it doesn't work in 2.5
[16:53:18] <IchGuckLive> where can i find this
[16:54:11] <IchGuckLive> Heekscad is the comfort G-code maker for 3-D and 2-D in Ubuntu
[16:56:10] <foxtrot> in my spare time i like to draw designs for cnc mills i'd like to build
[16:56:16] <foxtrot> it feels good to finally get that off my chest
[16:56:21] <MattyMatt> http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?GcodeGenerator
[16:56:34] <MattyMatt> that's yoyoek's original
[16:56:49] <moopy> has anyone tried artofillusion with emc?
[16:57:01] <MattyMatt> I've added some drill, slot & zigzag funcs
[16:58:25] <IchGuckLive> MattyMatt: so where is yours not public ?
[16:58:48] <IchGuckLive> foxtrot: witch cad?
[16:59:15] <IchGuckLive> http://www.sammellothar.de/x_rahmen.mpg
[16:59:50] <IchGuckLive> this is a nice construct and si of my prefoert CNC structure
[17:00:15] <MattyMatt> I can't find the link. I'll bung the latest on filebin, but I haven't written any docs, so I suggest you try the original first, read the docs, then try mine. the GUI will make more sense that way
[17:00:45] <IchGuckLive> ok
[17:01:33] <MattyMatt> I've basically made it just good enough to keep me milling, so far
[17:06:32] <IchGuckLive> MattyMatt: Witch OS
[17:06:56] <MattyMatt> any
[17:07:08] <MattyMatt> it's a blender .py script
[17:07:14] <IchGuckLive> did you try Heekscnc on windows
[17:07:23] <MattyMatt> yes
[17:08:13] <MattyMatt> I got frustrated with it, because it's not as nice as blender for drawing, once you've learned all of blender
[17:08:58] <MattyMatt> it needs all of blender's hotkeys, for me to like it :)
[17:09:13] <IchGuckLive> ok agree
[17:09:21] <MattyMatt> I hope I'll get time to add some
[17:09:49] <MattyMatt> because blender is not really a CAD program
[17:11:13] <MattyMatt> http://filebin.ca/rthcga/mGcode175.py
[17:11:15] <IchGuckLive> where can i find the script in blender ?
[17:11:26] <MattyMatt> ^there
[17:12:01] <MattyMatt> I have it embedded in the .blend files I work on
[17:12:47] <MattyMatt> I haven't got the hang of getting it to appear in the menus
[17:13:57] <MattyMatt> it's running all the time while I'm modelling
[17:14:09] <IchGuckLive> got it
[17:14:21] <MattyMatt> mostly I just use the Export Curves button
[17:15:15] <MattyMatt> it'll be a lot more useful when I add an editable list of objects to export in order
[17:15:50] <MattyMatt> at the moment I export one at a time, then paste them together in a text editor
[17:16:18] <IchGuckLive> http://www.youtube.com/watch?v=QEfbrh4maqM
[17:16:27] <IchGuckLive> milling tiny peaces
[17:17:17] <MattyMatt> nice little mill
[17:18:38] <MattyMatt> mine is less stylish, but works :) http://imagebin.ca/view/VYrny5J.html
[17:22:08] <IchGuckLive> yes thats true
[17:22:21] <IchGuckLive> but niot a frechchees mill B)
[17:23:16] <MattyMatt> is that a german word for MDF?
[17:26:08] <IchGuckLive> MDF
[17:26:15] <IchGuckLive> MittelDichteFaserplatte
[17:26:34] <IchGuckLive> thats a pressed wood
[17:27:11] <alex_joni> Medium Density Fiberboard
[17:27:12] <IchGuckLive> first programm is on
[17:27:45] <IchGuckLive> alex_joni: B)
[17:28:07] <IchGuckLive> Matty there are alot of # in the programm
[17:28:35] <IchGuckLive> MattyMatt: so 1 blender is 1 mm
[17:29:12] <IchGuckLive> if you safe it as STL its 1blende= 1inch
[17:31:46] <IchGuckLive> this is nothing for me i like clear G-code
[17:32:05] <IchGuckLive> but it works
[17:44:19] <alex_joni> http://www.youtube.com/watch?v=ilvwJREmJm0
[17:48:20] <IchGuckLive> alex_joni: did you make this
[19:03:50] <alex_joni> heh, no
[22:25:11] <Jymmm> Wuzzzzzzzzzzz Up!
[22:47:44] <andypugh> http://dlxs2.library.cornell.edu/cgi/t/text/pageviewer-idx?c=kmoddl&cc=kmoddl&idno=kmod005&node=kmod005%3A5&frm=frameset&view=image&seq=7
[22:50:51] <Jymmm> #20 looks like bullshit to me
[22:51:58] <geo01005_home> geo01005_home is now known as geo01005
[22:52:23] <alex_joni> Jymmm: why? it's perfectly valid
[22:55:08] <andypugh> I am not sure it is sensible, but it will work.
[22:57:01] <alex_joni> andypugh: very nice book anyways :)
[22:57:14] <andypugh> I will have to find time to read it all.
[23:08:56] <celeron55> #20 looks like valid to me
[23:12:45] <Jymmm> alex_joni: Don't care if it's valid or not, still BS
[23:13:15] <Jymmm> alex_joni: I dont have any tackle, or I might try it.
[23:13:50] <Jymmm> So, if anyone has any old climbing carabiners they don't want, send em my way =)
[23:15:24] <alex_joni> Jymmm: why BS?
[23:16:42] <Jymmm> alex_joni: Just rigging up the shorter lines would be a royal pita.
[23:17:21] <Jymmm> alex_joni: There would have to be some SERIOUS benefit to that setup to use it.
[23:18:01] <alex_joni> well, not really..
[23:18:15] <alex_joni> the setup with the rolls parallel is way more efficient
[23:18:21] <Jymmm> alex_joni: Then set it up and post on youtube
[23:18:24] <alex_joni> and better in organizing cables/wires
[23:19:20] <alex_joni> http://www.lhup.edu/~dsimanek/scenario/labman1/pulleys.htm
[23:19:40] <Jymmm> alex_joni: Then set it up and post on youtube
[23:20:34] <Jymmm> alex_joni: No "Theory" BS! Show us video or it's bs =)
[23:21:10] <alex_joni> what I mean is that it's just as effective as a similar system which has been used for centuries: http://www.faqs.org/photo-dict/photofiles/list/6332/8345ship_pulley.jpg
[23:21:46] <Jymmm> alex_joni: SHOOOOOOOOOW MEEEEEEEE THE VIDEOOOOOooooo! =)
[23:22:08] <alex_joni> http://en.wikipedia.org/wiki/File:Crane_pulley_4x.jpg
[23:22:47] <alex_joni> here you go: http://www.youtube.com/watch?v=9T7tGosXM58
[23:23:03] <alex_joni> especially for you
[23:23:55] <Jymmm> alex_joni: No, a video of #20 in operation.
[23:32:42] <alex_joni> http://www.youtube.com/watch?v=MpPTZppUioM&feature=related