#emc | Logs for 2010-09-23

[00:04:27] <theorb> theorb is now known as theorbtwo
[00:05:38] <Jymmm> JT-Hardinge: Since they have a "lift" to them, the design may not be a bad idea. Could also position your bucket with them =)
[00:18:13] <ckingsbury> Does anyone here know anything about wiring up a (physical) control panel using Python to talk with HAL? I've been digging through tutorials and manuals for a couple evenings now, and while I understand lots of pieces, I am having a hard time seeing how to put the stack together.
[02:22:44] <Valen> what do you guys think of this for our mill as a Mk0 plan http://www.vapourforge.com/mill/zone/vapourmill_mk0/5axis%20front3.jpg
[02:23:43] <Valen> more pics at http://www.vapourforge.com/mill/zone/vapourmill_mk0/
[02:27:13] <cradek> ckingsbury: the key to your problem is halui
[02:28:53] <ckingsbury> cradek: thanks, that's what I thought, I'm stumbling a little closer to it
[02:29:52] <ckingsbury> Where I was banging my head against the wall was in figuring out how halui gets loaded to start with, and I was going through an axis-pyvcp tutorial and that kind of started to come into view
[02:32:51] <cradek> http://linuxcnc.org/docs/html/gui_halui.html
[02:33:10] <cradek> "The easiest way to add halui is ..."
[02:33:54] <cradek> I wish we could tell google that the most up-to-date docs are at http://linuxcnc.org/docs/html/
[02:37:29] <Valen> can you add a link to the old docs saying "legacy stuff" look here for the new stuff?
[02:37:56] <cradek> jepler did some of that recently
[02:56:03] <ckingsbury> OK, I've got all my pieces in place now, but EMC is failing to load and I'm getting a message saying ard2 (that's my Python script) exited without becoming ready
[02:56:23] <ckingsbury> All I'm doing is creating single component with a few pins
[02:56:32] <ckingsbury> and I am calling the ready method
[03:07:49] <willeo6709> anybody out there?
[03:09:52] <qq-> 73 is ok ?
[03:09:57] <willeo6709> hi
[03:10:12] <willeo6709> 73 is ok for what?
[03:10:33] <qq-> as 'anybody'
[03:10:51] <willeo6709> I have emc2 questions
[03:11:10] <willeo6709> anybody using pitch compensation? does it work?
[03:12:36] <cradek> yes screw compensation does work
[03:13:22] <willeo6709> i have a machine with an acramatic 2100 that uses " tool id numbers" as an option to tool pocket numbers, kind of like migratiting tools
[03:14:11] <willeo6709> I can call a spot drill id 200500 and it will locater the pocket in the tool file where it is
[03:14:16] <willeo6709> and load it from there
[03:14:33] <willeo6709> instead of blindly loading whatever is in pocket 1 for instance
[03:14:46] <cradek> emc2 can have arbitrary tool numbers; T200500 is perfectly acceptable
[03:15:48] <cradek> it supports machines that always return the tool to the same pocket, and also machines that exchange a pocket tool with the spindle tool (the latter is called a "random" toolchanger)
[03:16:25] <willeo6709> cradek, I always heard that referred to as migrating tools, common on the larger twin arm changers with large magazines
[03:16:49] <willeo6709> where it takes too dang long to index the chain twice
[03:16:50] <cradek> yes a swing arm that holds a tool at both ends and rotates 180 to swap them is the common "random" setup
[03:17:15] <willeo6709> how about renishaw probes? anybody use them in emc?
[03:17:28] <willeo6709> I have a MP12 spindle probe and a tp21 tool probe
[03:17:43] <cradek> yes, we have powerful probing gcodes, I have a renishaw that I love and use constantly
[03:18:14] <willeo6709> are you happy with your emc retro?
[03:18:16] <cradek> with a tool probe you could write gcode that loads all your tools and probes their lengths and puts the length in the tool table
[03:18:34] <cradek> I have emc2 on several machines - they work great
[03:19:00] <willeo6709> The acramatic 2100's were great the first 7 years, not so great the last 3 and are strarting to really suck on part prices
[03:19:01] <cradek> some day I will set up a tool probe...
[03:19:13] <cradek> how many machines? are they identical?
[03:19:13] <willeo6709> I have some fanuc 16's and 18i's
[03:19:16] <Valen> cradek: we are making one ;->
[03:19:18] <willeo6709> 1 0-td
[03:19:33] <willeo6709> the mills I am looking at emc for
[03:19:42] <willeo6709> are all cincinati verticals
[03:19:51] <willeo6709> 1 750, 2-1250's, 1-1500
[03:20:10] <willeo6709> biggest is 30inch y x 60 inch x x 30 inch z
[03:20:13] <willeo6709> 4 ax
[03:20:17] <cradek> where are you?
[03:20:19] <willeo6709> iowa
[03:20:21] <Valen> cradek: http://www.cnczone.com/forums/showthread.php?t=109146 theres even some videos ;->
[03:20:30] <willeo6709> make lots of stuff, including firearms
[03:20:41] <cradek> which end? I'm in lincoln.
[03:20:55] <willeo6709> southeast, 1 hour south of davenport
[03:21:05] <cradek> heh, the far end
[03:21:08] <cradek> iowa is wide...
[03:21:11] <willeo6709> yep
[03:21:14] <willeo6709> 4.5 hours
[03:21:23] <willeo6709> 3.5 if you drive like me
[03:21:26] <cradek> ha
[03:21:50] <willeo6709> anyway, the cinci's all use the same application software levels
[03:22:02] <willeo6709> load all the same stuff to make them work regardless of size
[03:22:11] <willeo6709> was talking with mesa today
[03:22:19] <willeo6709> probably go with them on boards
[03:22:27] <cradek> you will learn a lot on the first one - the next ones will be easier
[03:22:39] <willeo6709> you guys lasered your machines? comp fanuc like?
[03:22:57] <willeo6709> the next ones will be cake - identical ladders
[03:23:10] <cradek> I haven't but stuart s in wichita has lasered all his emc machines
[03:23:20] <willeo6709> ok
[03:23:38] <willeo6709> so it all works
[03:23:39] <cradek> several of us are going to be down there in november - you should come if you want to see real emc machines
[03:23:51] <willeo6709> have heard nasdty rumors on camsoft retrofits
[03:23:52] <cradek> heh, you asked that already
[03:24:03] <willeo6709> and mach3 has a problem with pitch comp I hear
[03:24:25] <cradek> mach 3 is for machines where they don't care about that kind of thing
[03:24:42] <willeo6709> I just don't want to put a lot of work into it and find I'll never be happy
[03:25:20] <willeo6709> If i could afford to put an 18i on them I probably would not even consider emc... that happy with my fanucs
[03:25:28] <cradek> none of us are in the business of promising happiness - it is important to do your homework - I see that is what you are doing
[03:25:36] <willeo6709> but a fanuc retro can't reuse existing motors and drives
[03:26:07] <willeo6709> and fanuc priced me about $45k to get just the parts to do these machines
[03:26:56] <willeo6709> how many of you are using classic ladder inside of emc2?
[03:27:49] <cradek> I used classicladder for all machine logic on my vmc
[03:28:09] <willeo6709> I love ladder behind fanuc's so much easier to troubleshoot
[03:28:11] <cradek> running the tool changer, interlocks, probe, estop, everything
[03:29:39] <willeo6709> macro programming?
[03:29:45] <willeo6709> fanuc like?
[03:30:24] <willeo6709> subprogram? how many layers?
[03:31:17] <cradek> we have an "O word" dialect for looping/subroutines/conditionals
[03:31:29] <willeo6709> ok
[03:31:43] <cradek> I bet it's quite incompatible with however fanuc does it
[03:31:47] <cradek> but, same ideas
[03:32:03] <willeo6709> how about macro? can I program with variable? for example:
[03:32:11] <willeo6709> g1x#221y#222
[03:32:14] <cradek> yes
[03:32:20] <cradek> #1=[#2+#3]
[03:32:23] <cradek> G0 X#1
[03:32:31] <willeo6709> thats fanuc like so far
[03:32:39] <cradek> #4=SIN[#5]
[03:32:53] <willeo6709> the 2100 is way different but not bad in macro
[03:32:53] <cradek> yes that part is a lot like fanuc
[03:34:17] <willeo6709> how about absolute encoders? I have incrementals on the cinci's now, ut if I ever spend the money I'd rather go absolute
[03:34:24] <willeo6709> but
[03:35:09] <willeo6709> thats a lot of cash to change
[03:35:20] <cradek> there is no support for absolute encoders.
[03:35:31] <willeo6709> these are 30nm continuous motors, 50 nm peak
[03:35:36] <cradek> normal incremental encoders with index pulse homing
[03:36:21] <willeo6709> ok
[03:36:37] <willeo6709> but the newer digitals or older analogs both work?
[03:37:10] <cradek> the mesa hardware takes differential quadrature + index encoder signals.
[03:37:31] <cradek> if you have resolvers there are several good options, but quadrature encoders are the usual setup.
[03:37:32] <Valen> is there much point to an absolute encoder on a screw?
[03:37:47] <willeo6709> depends if your home switches are in good shape
[03:37:48] <cradek> Valen: you don't have to home...
[03:37:53] <willeo6709> you can get grid shift
[03:38:08] <willeo6709> re homemachine and the home moves a screw pitch
[03:38:08] <cradek> well... not unless it's badly set up
[03:38:19] <cradek> yeah, or busted
[03:38:26] <Valen> you would still need a home but it doesn't need to be accurate
[03:38:26] <willeo6709> or if the switches are 15 years old....
[03:38:48] <cradek> ha mine are more like 30
[03:38:49] <Valen> you would need to know what rotation its in one would presume
[03:38:56] <willeo6709> valen, you need home to be accurate....and repeatable especially on traveling column machines
[03:39:05] <willeo6709> or toolchange does not work
[03:39:23] <cradek> Valen: you just put the switch where it triggers midway between two index pulses
[03:39:29] <willeo6709> i have hmc's 2 pallet, have to nut home position
[03:39:45] <willeo6709> they are absolutes
[03:40:16] <Valen> cradek: so theres no real advantage over an index
[03:40:21] <willeo6709> well my home switch for z is not bad, x I can deal with y home switch is somewhere I don't care to be often
[03:40:44] <cradek> Valen: not for machines that can always just home, IMO
[03:41:14] <cradek> but say your machine is huge - might be nice to avoid traveling to one end and back whenever you start up
[03:41:20] <Valen> willeo6709: i was saying with an absolute encoder you don't need an accurate home switch, the switch just needs to let you know what rotation of the screw your in (IE are you at 0 or 5mm doen the way)
[03:41:41] <Valen> cradek: if you trust that saved and actual positions are pretty close ;->
[03:41:54] <willeo6709> valen, on my fanucs there are no switches,,, find mechanical home, do a parameter thing, done
[03:42:08] <Valen> it just drives into the wall?
[03:42:20] <cradek> goodnight folks, I've got to run.
[03:42:26] <Valen> cya cradek
[03:42:33] <willeo6709> no, you never have to home it once established,,,, you tell it when its home
[03:42:44] <Valen> take a look at our tool length switch ;->
[03:42:47] <cradek> willeo6709: seriously, consider the wichita emc fest in november if you're interested in doing some big retrofits.
[03:43:04] <willeo6709> ok cradek
[03:43:06] <cradek> see the emc-users mailing list archives for details
[03:43:12] <willeo6709> ok
[04:05:57] <willeo6709> is here or the forum the best place for help if i encounter issues?
[04:07:20] <Valen> depends on how big an issue your having
[04:07:31] <Valen> I normally come here first, then the mailing list
[04:24:08] <KimK> willeo6709: Speaking of Wichita, I looked up louisacomm.net, are you in Iowa?
[04:25:31] <willeo6709> yes
[04:25:53] <willeo6709> southeast
[04:26:14] <willeo6709> wichita i think is 5-6 hours
[04:27:23] <KimK> I live in Omaha, but have been spending a lot of time in NW Minneapolis lately. I usually take the "via Des Moines" route, I-80 to I-35, or vice-versa.
[04:27:46] <willeo6709> been a while since I was in omaha...
[04:28:01] <willeo6709> fastest for me to zip up to 80 and across
[04:29:01] <KimK> Anyway, I'd like to go to Wichita, but nothing for sure yet. Oh, I also visit Minden, IA from time to time.
[04:29:45] <willeo6709> heard of minden,,, can't place it without a mapquest search
[04:31:19] <KimK> It's just south off of I-80, about a mile or two east of the I-80 & I-680 fork/merge. About 45 mins east of Omaha.
[04:31:20] <willeo6709> have emc stuff?
[04:32:57] <KimK> No machines of my own, but I help friends in Minneapolis and Minden. I'm trying to learn enough to become a developer, we'll see, lol.
[04:33:49] <willeo6709> i have 4 cincinnati vmc's from the late 1990's i would like to retrofit
[04:33:52] <KimK> I did retrofitting (among other things) in the past, so that helps.
[04:34:14] <KimK> Sure, go for it!
[04:34:16] <willeo6709> been to hell and back with the windows based control on them
[04:34:53] <willeo6709> is properly built linux more stable than windows?
[04:35:13] <KimK> Is it the one that we sometimes refer to around here as M*** ?
[04:35:24] <willeo6709> its an acramatic 2100
[04:35:29] <willeo6709> now a siemens product
[04:35:50] <willeo6709> but started life at cinci's Vickers systems division
[04:37:27] <KimK> Ah, OK, another product trying to use Windows for real-time. Yikes. Yes, in fact just about any version of Linux you can shake a stick at is more stable than Windows.
[04:37:45] <willeo6709> these are win nt 3.51 or 4.0
[04:37:51] <Valen> heres a new mill we are working on http://www.cnczone.com/forums/showthread.php?p=827626#post827626
[04:37:54] <willeo6709> have one 3.51 drive left
[04:38:26] <KimK> Well, that's something, at least. Still not really any good, though.
[04:38:59] <morfic> looks like we will order drives/servos/motor next week, finally some movement :)
[04:39:00] <KimK> Even NT Windows is still Windows.
[04:39:12] <willeo6709> valen, don't spend much time on the zone.... i am a mod on practical machinist
[04:39:54] <Valen> nifty
[04:41:28] <morfic> practical machinist is a place i never thought of looking for a forum
[04:41:47] <willeo6709> www.practicalmachinst.com
[04:41:47] <morfic> it's those little magazines laying around in the break room, not a forum :P
[04:41:50] <Valen> morfic what do you think of the outline for our machine?
[04:42:03] <willeo6709> did not lok too bad valen
[04:42:38] <morfic> i would probably want to know what you want to do with it, and maybe point at the rails
[04:43:00] <morfic> but i saw a trunion and stopped looking more or less, i'd want it either way, just because
[04:43:17] <Valen> hoping to get to doing steel with a 2Kw spindle
[04:43:28] <Valen> the 4th and 5th axies are to be removable
[04:44:09] <KimK> willeo6709: Good to meet you, maybe I can tour your machines sometime if you're not too far away from I-80, I-29, or Hwy 34?
[04:46:15] <willeo> wiskey tango foxtrot was that?
[04:46:30] <willeo> this thing knock you out and log you back in occasionally?
[04:47:15] <KimK> Not that I know of, did your IRC client do that, perhaps?
[04:47:25] <willeo> maybe
[04:49:04] <KimK> Unless freenode does that for guest12345 names? You get to upgrade to "guest" if you're the only one?
[04:49:25] <KimK> I really don't know.
[04:51:52] <MattyMatt> my laptop keeps reconnecting like that, it can only be my local wifi connection because this machine and the emc one are stable
[04:53:07] <KimK> Anyway, willeo, jump in and chat anytime. But right now I need food and sleep. If you write anything, I'll scroll back later and read it. I'll be back tomorrow. Goodnight all.
[04:53:18] <willeo> night
[04:53:20] <MattyMatt> Valen nice looking machine, but do you think that trunnion could use a counterweight on the A?
[04:53:38] <Valen> not a bad idea that one MattyMatt
[04:53:54] <Valen> we are mainly focussing on the 3 axis at the moment
[04:54:05] <Valen> but want to be able to go to 5
[04:54:28] <MattyMatt> or a place to attach one temporarily, if the work doesn't do the job :)
[04:54:54] <Valen> heh
[04:55:11] <Valen> most of the commercial ones don't seem to have them?
[04:56:20] <MattyMatt> the ones I've seen have larger A bearings, usually similar in size to the 5th axis table
[04:57:59] <Valen> yeah I just didn't want to punch too big a hole in the side wall
[04:58:05] <MattyMatt> maybe that's just a hangover from their development from vertical rotaries used as 4th axis
[04:58:15] <willeo> don't know where you are but I know where 5 or 6 bt40 5 axis machines are with fanucs if you want a real steel cutting machine
[04:58:31] <willeo> not expensive either
[04:58:39] <Valen> define not expensive ;->
[04:58:44] <Valen> I'm in australia btw
[04:58:47] <willeo> 20k or less
[04:58:59] <willeo> i am in the midwest usa
[04:59:18] <MattyMatt> 20 kopeks? I'll have one :)
[04:59:21] <Valen> yah I'm hoping to knock this out for < $5k
[04:59:23] <willeo> iirc they have about a 16 inch table, round
[04:59:34] <Valen> its a serious toy ;->
[05:00:04] <Valen> not a serious machine for heavy duty 24/7 work
[05:00:44] <MattyMatt> my 4th axis is a nema17 clamped in a $10 drill vice :)
[05:01:25] <MattyMatt> the good news is, it works
[05:01:49] <Valen> hey thats all that matters
[05:03:10] <MattyMatt> kinda. even delrin is a challenge for my plywood mill. It's a good job I didn't try and make aluminium or brass gears this time round
[05:03:34] <Valen> heh probably still make archivist jelous
[05:05:42] <MattyMatt> yours might, mine makes nobody jealous except maybe a few reprap users
[05:08:12] <elmo40> for my 4th I might be going a little overkill... but I have the guts of a tire changer :P They use a worm gear to drive the main rotation of the machine. There is a little bit of play but I think if I open it up I could tighten it with a bushing or two. Now how do I drive it?
[05:08:16] <Valen> a ruler and an exacto makes reprap people jealous doesnt it?
[05:09:58] <elmo40> willeo: how old? for $20k I would hope less then 10 years.
[05:10:43] <willeo> 1996 or so
[05:10:53] <willeo> japanese built ntc's
[05:11:08] <willeo> linear, ballscrews, nikken rotaries
[05:12:14] <MattyMatt> 16" rotaries are dirt cheap on ebay. generally cheaper than 6" ones
[05:12:28] <MattyMatt> BYOF (forklift)
[05:12:46] <willeo> until you go an a over b both servo controlled by a fanuc 21
[05:14:32] <elmo40> Valen: nice 5-axis setup. this is how Mazak does it.
[05:14:41] <elmo40> now, incorporate an automatic tool changer!
[05:16:37] <Valen> elmo40: oh that is a must ;->
[05:17:01] <Valen> where to put what style is the question
[05:17:11] <Valen> keeping in mind its gotta be small in terms of table space
[05:17:53] <MattyMatt> it looks like you've got room at the front, if your Y rails are bit longer
[05:18:17] <elmo40> question: lets say I want to make a tool changer. but not in the area of the machine. keep the tools chip-free. this would require the tools to be 'behind' the home and/or soft limit switch only accessible from a specific location. Is this possible? can there be an override for tool changing in a specific location where the machine goes a few inches 'behind' the home switch so it can reach the tools behind the door?
[05:18:41] <elmo40> MattyMatt: typical mistake. putting the tools in the work area
[05:18:43] <Valen> MattyMatt: I wanted to put a "boom" across the front to join the top corners togteher
[05:19:11] <elmo40> why would you want to have chips/coolant flying onto the taper?
[05:19:38] <Valen> I spose you could put a carousel changer under the table
[05:19:41] <elmo40> 'real' machines put the tools behind a door. out of site from the work area to help keep them clean
[05:19:58] <MattyMatt> yeah I like those ones with the tool rack in a little cubbyhole that comes out and opens up for tool changing
[05:20:05] <elmo40> Valen: a what what? where?? under???
[05:20:19] <elmo40> *confused*
[05:20:32] <Valen> the spinny ones
[05:20:36] <MattyMatt> I get that carousel idea, sounds neat
[05:20:43] <elmo40> under the table?
[05:20:57] <elmo40> what table? the 5th-axis table?
[05:21:02] <Valen> the bed
[05:21:07] <MattyMatt> yeah a trapdoor under the bed
[05:21:08] <Valen> the big flat bit
[05:21:13] <elmo40> why not place tools underneath the table... empty space, eh? :P
[05:21:19] <Valen> I was going to put it off the side of the bed
[05:21:35] <Valen> increase the range a little so it can reach outside the base
[05:21:55] <elmo40> but I must say, that design is virtually identical to the Mazaks we run.
[05:22:08] <elmo40> will you cast any of it?
[05:22:18] <MattyMatt> under the bed just needs some extra Z, which doesn't increase the floorspace of the machine
[05:24:00] <MattyMatt> it's not a benchtop machine anymore if you do that tho
[05:24:35] <Valen> going to fill it with EG
[05:24:53] <Valen> i'm trying to find a foundry to see what casting stuff costs
[05:25:08] <Valen> MattyMatt: put some feet on it and some drawers ;->
[05:25:11] <elmo40> don't you have a back yard? ;) melt your own.
[05:25:24] <Valen> melting iron is getting a bit warm
[05:27:22] <MattyMatt> it looks doable. I was hoping to get as far as melting alu this summer, I've blown that chance
[05:27:49] <Valen> doable but might not be easy
[05:28:16] <MattyMatt> have you read Lionel Olliver's site?
[05:29:22] <MattyMatt> http://www.backyardmetalcasting.com/index.html
[05:30:38] <MattyMatt> you have to read the whole site, to get the chronological gist of which burners & furnaces were most effective, but he was melting iron quite easily at the end, all on waste oil
[05:31:14] <Valen> geez nobody does iron work here it seems
[05:31:22] <Valen> its all non ferrous
[05:31:27] <Valen> bunch of pussies
[05:32:08] <elmo40> ya, tell me about it
[05:32:33] <elmo40> I worked in an iron foundry a while back, we made exhaust manifolds for gm/ford/chrylser.
[05:32:53] <elmo40> I drove by there a few months back and the building was torn down.
[05:33:12] <elmo40> would have been nice to grab some of the sand ;)
[05:33:44] <elmo40> Valen: what are the machine specs? rotary table size? spindle taper? Hp of spindle?
[05:33:49] <elmo40> and budget.
[05:35:49] <Valen> 500mmx500 working area for 3 axis
[05:36:32] <MattyMatt> there's actually a one man iron foundry here in town. I ought to go and get prices and maximum melt size
[05:37:28] <Valen> its a first draft but the hope is to be under $5000
[05:37:35] <MattyMatt> until not so long ago, we had a firm here making 20ft bronze ship propellers
[05:37:37] <Valen> for a turn key system
[05:39:47] <MattyMatt> oh neat, the head office is still here, http://www.smpropulsion.com/. production looks like it's shifted to Hong Kong
[05:50:29] <MattyMatt> Valen, you could make your 4th axis from 2 big rotaries, and that would take care of most of the structure of the sides of the machine. they wouldn't be in the way when the 5th axis is removed
[05:52:10] <ries_> ries_ is now known as ries
[05:52:25] <MattyMatt> brand new large rotaries are probably expensive tho
[05:52:55] <MattyMatt> but old ones are crazy cheap on ebay
[05:53:20] <MattyMatt> at least they are here in the ex-industrial nations :)
[05:56:48] <MattyMatt> yeah no enormous old ones on ebay.com.au
[06:02:50] <MattyMatt> stuff like this goes for 20 quid sometimes here http://cgi.ebay.co.uk/16-T-Slotted-Rotary-Table-/180488423397
[06:03:50] <MattyMatt> I've noticed the bargains have been drying up since I started looking just about a year ago
[06:40:41] <Valen> yeah, we are just putting 100mm holes in the sides at the moment
[06:42:13] <Valen> so you should be able to fit in however your doing it with / through that
[07:34:09] <Jymmm> Does anyone know of any nesting programs/scripts?
[07:35:05] <MattyMatt> I think I've seen free ones intended for texture packing
[07:35:19] <Jymmm> ?
[07:37:25] <MattyMatt> in 3d programs, you need to pack arbitrary textures into rectangular bitmaps
[07:37:36] <MattyMatt> so it's essentially the same problem
[07:38:12] <Jymmm> No, this is nesting pieces in a DXF file for cutting out on sheets without wasting material.
[07:39:39] <MattyMatt> yeah the material you are preserving in textures is video memory
[07:39:56] <MattyMatt> imagine animal hide shapes
[07:39:57] <Jymmm> I have no clue what "packing textures" is
[07:41:13] <Valen> he is talking about doing video card stuff
[07:41:31] <Valen> it could be repopursed for what your trying to do
[07:41:42] <Jymmm> Great, link?
[07:42:23] <Valen> nfi
[07:42:31] <Valen> I am somewhat curious to find out too
[07:42:37] <MattyMatt> http://alice.loria.fr/publications/papers/2002/lscm//photo/bunny_2d.png
[07:42:46] <MattyMatt> that sort of thing
[07:43:03] <Jymmm> MattyMatt: Ok, link to software or script?
[07:43:31] <MattyMatt> http://alice.loria.fr/index.php/publications.html?Paper=lscm@2002 there's the paper
[07:43:54] <Jymmm> MattyMatt: I asked for software or script
[07:44:07] <MattyMatt> I'm having a quick scour of the usual places for free implementations. google is just throwing up papers
[07:46:10] <MattyMatt> it looks like a basic implementation is built into blender
[07:46:51] <MattyMatt> but I expect that'd be a big job importing DXF, converting to texture, doing the LSCM on it, and re-exporting
[07:47:48] <MattyMatt> I expect you want somthing that works in proper dimensions, not pixels
[07:49:01] <Jymmm> =)
[07:49:50] <MattyMatt> are you interested in $99 class apps? I've seen those for sure
[07:50:09] <Jymmm> nope =)
[07:53:49] <Jymmm> cradek: jepler Is this useful ? http://www.koders.com/python/fid173EFCC89B700DDF770FEE4C2DDCDBC09D18395F.aspx?s=xml
[07:56:38] <MattyMatt> there's a utility in the DX SDK called UVatlas.exe
[07:56:42] <MattyMatt> http://msdn.microsoft.com/en-us/library/bb206321(VS.85).aspx
[07:57:58] <MattyMatt> specifically for routing tho, I've only seen it as a premium feature of certain commercial CAM progs
[13:22:35] <Als> anyone have any ideas what I could try about libcrypto.so sag fault 10.04 live cd
[13:26:44] <Als> /msg NickServ identify wellsindex
[13:27:07] <Valen> Als: that was a bad moove lol
[13:27:14] <elmo40> odd. never had that issue. find many people with libcrypto.so issues, though.
[13:27:17] <Valen> i suggest changing your password rapidly
[13:27:26] <Als> yep
[13:47:39] <Als> dont hit the space bar!
[14:29:14] <elmo40> ok, this would be a cool job but DAMN. http://www.iviewtube.com/v/167824/climbing-up-the-tallest-antenna-tower-1,768-feet
[16:12:13] <Birdman3131> http://www.42isalwaystheanswer.com/photos/cncboard/ Help. Our CNC machines are overheating and I cannot figure out why.
[16:12:30] <Birdman3131> /sarcasm
[16:14:42] <awallin_> a bit more light and the camera on a tripod or a steadier might help with the pics...
[16:15:10] <Anon9782345> Anyone here use a Vacuum pump for hold down?
[16:15:26] <Anon9782345> Been wondering if it could be done with small pods
[16:15:58] <Anon9782345> Or better yet
[16:16:04] <Anon9782345> I do allot of styrofoam cutting
[16:22:23] <AlbertNe> what was that?
[16:23:13] <Anon9782345> sorry
[16:23:22] <Anon9782345> Had to speak to someone in my office.
[16:23:27] <Anon9782345> I cut allot of styrofoam
[16:23:31] <Anon9782345> (Pink Insuklating Foam)
[16:23:38] <Anon9782345> for low budget prop projects
[16:23:42] <Anon9782345> and toys
[16:24:16] <Anon9782345> Right now i am fasting the stuff to my table via wood screws into my spoil board
[16:24:37] <Anon9782345> I have a 2700 CFM Delta Dust Collector
[16:24:44] <Anon9782345> Not saying it has allow of vacuum
[16:25:06] <Anon9782345> But it seems i might turn my spoil board into a air hockey table,
[16:27:58] <atmega> I'd suggest you try it and report back with results.
[16:33:22] <Birdman3131> awallin: Sorry. They were with a camera phone right before I cleaned them.
[16:54:43] <Anon9782345> Does anyone cut Foam?
[16:57:33] <Jymmm> like?
[16:57:50] <Birdman3131> I sometimes cut cheese. Does that help?
[17:03:42] <Anon9782345> Well
[17:03:48] <Anon9782345> Here is my problem
[17:03:54] <Anon9782345> I cut .5" thick foam
[17:04:06] <AlbertNe> ?
[17:04:21] <Anon9782345> The problem i have is
[17:04:32] <Anon9782345> the foam lifting up
[17:05:11] <Anon9782345> I have seen something like a
[17:05:17] <Anon9782345> "Presser Foot" on a sewing machine
[17:05:22] <Anon9782345> that presses down on the material
[17:06:29] <Jymmm> what are you cutting the foam with?
[17:07:28] <Anon9782345> 1/8" endmill
[17:08:16] <AlbertNe> OMG!
[17:08:34] <Jymmm> You said you have a dust collector?
[17:08:49] <Anon9782345> yea
[17:09:05] <Jymmm> Make a vacuum table
[17:09:19] <Anon9782345> I'm beginning to think of it.
[17:09:23] <Jymmm> then just use a gate to control the suck level
[17:09:31] <Anon9782345> ???
[17:09:38] <Anon9782345> Wouldnt i want full sucktion?
[17:10:05] <Jymmm> This is EPS your cutting right?
[17:10:13] <Anon9782345> i don't know
[17:10:15] <Anon9782345> Pink Foma
[17:10:17] <Anon9782345> Foam
[17:10:38] <Jymmm> little pellets?
[17:10:42] <AlbertNe> (in ordinary condition, i cut foam with a hotwire)
[17:10:48] <Jymmm> swuished together?
[17:10:57] <Jymmm> squished
[17:11:01] <Anon9782345> no
[17:11:05] <Anon9782345> not little pellets
[17:11:57] <Jymmm> Ok, but it "snaps" when bent?
[17:12:14] <Anon9782345> yea
[17:12:19] <Anon9782345> It has some flex
[17:12:24] <Anon9782345> ITs not like sign foam
[17:12:44] <Anon9782345> like
[17:13:06] <Anon9782345> flexible a bit like piper insulation
[17:13:19] <Jymmm> Yeah, you dont want to deform the material, vacuum is far stronger than compressed air.
[17:13:28] <Anon9782345> Ok
[17:13:39] <Anon9782345> So, turn my table into a vac table
[17:13:56] <Jymmm> I have seen 5000 gallon stainless steel tank buckle under vacuum.
[17:13:56] <Anon9782345> using some of the vacuum on of the dust collector
[17:14:18] <Jymmm> I have seen 5000 gallon stainless steel tank buckle under vacuum. And more than once too
[17:14:53] <IchGuckLive> hi all from Germany
[17:15:34] <AlbertNe> hallo germany
[17:15:46] <Fox_Muldr> hi, i want to experiment a bit with my usb joystick and emc2.4.4. i found different joystick related wiki pages but on all hal_joystick is used and the header says that hal_joystick is deprecated for emc 2.4. so where can i find more actual information for experimenting? :)
[17:16:39] <IchGuckLive> go to wiki and there to hal section
[17:18:50] <Fox_Muldr> ok i will check
[17:21:22] <Fox_Muldr> ah i see. hal_input is my new friend :)
[17:23:20] <IchGuckLive> B)
[18:15:25] <mrsunshine> heh najs .. brother makes cnc machiens also ? :)
[18:39:22] <elmo40> mrsunshine: one of the fastest! check out this tool change. http://www.youtube.com/watch?v=4XYakTeQahA
[18:39:48] <mrsunshine> mm =)
[18:40:12] <mrsunshine> cheap and good printers and cnc machines .. its quite a contrast imo :P
[18:40:52] <elmo40> this one is better. http://www.youtube.com/watch?v=L5aC5Kpvibc
[18:40:56] <elmo40> SOOOO fast.
[18:41:20] <elmo40> think of the CNC as a printer... just removing 'ink' instead of adding. LOL
[18:45:46] <AlbertNe> just like magic, now u see, now you don't
[18:46:42] <mrsunshine> elmo40, yes .. but the size differs quite a bit :P
[19:39:01] <Martinp23> :[Global Notice] Hi folks. One of our servers (jordan) needs to undergo emergency maintenance in the next 30 minutes. The maintenance window will be 48 hours or so. The result of this will be a netsplit as 3000 users, who have already been notified seperately, disconnect. I'm sorry for the inconvenience. If you've any questions, pop into #freenode. Thanks!
[22:02:46] <skunkworks> http://cgi.ebay.com/Bryant-Processor-PCB-CNC-2K-9124-Circuit-Board-2K9124-/140352608146?pt=LH_DefaultDomain_0&hash=item20adaad792