#emc | Logs for 2007-11-19

[00:00:57] <davidf> Oh boy Oh boy Thanks for that link!
[00:01:34] <fenn> i presume you've been reading this instead? http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?Oword
[00:02:59] <davidf> I've had lots of trouble getting good tool paths with only using QT CamExpert_demo and ACE converter. That's why I sometimes use my own code.
[00:03:35] <fenn> i usually look here first if i'm trying to figure out some g-code thing: http://linuxcnc.org/docs/html/gcode.html
[00:03:40] <davidf> fenn, no I didn't know about that either. Just the g code doc in the emc manual. Thats about all I've looked at.
[00:04:24] <davidf> I don't usually do much but lines and arcs etc, pretty simple geometry
[00:04:58] <davidf> Usually I can just do a drawing and run ti through ACE with a couple tweaks.
[00:05:30] <fenn> how do you like ACE? does it work well with qcad drawings?
[00:06:01] <davidf> Yes, pretty well, but the optimization is totally undependable.
[00:06:29] <davidf> Say with that shape I just posted. It's supposed to go in a rectangular path...
[00:06:43] <BigJohnT> Anyone know anything about the Mazak motor mount project?
[00:07:16] <fenn> what's the mazak motor mount project?
[00:07:21] <rayh> Roland asked me if we (emc group and Mazak) could do it.
[00:07:34] <BigJohnT> for EMC fest
[00:07:47] <davidf> round and round CCW in .o1 passes. But After ACE, it does one side, then bac, then over, seemingly at random.
[00:07:50] <rayh> During the fest yes.
[00:07:57] <fenn> current motor isnt good enough or what?
[00:08:20] <rayh> No they are mounts that he designed for a lathe retrofit.
[00:08:32] <fenn> oh, that sound much more interesting
[00:08:32] <BigJohnT> if you have a print I could do the g code or make a print if needed
[00:08:38] <rayh> I think he uses NEMA 34 motors on some lathe.
[00:09:05] <rayh> Wanted us to set it up and mill about 8-10 sets of them.
[00:09:14] <davidf> Interesting coincidence. That's what I'm doing right now for my mini lathe.
[00:09:35] <rayh> There you go. We can make two different sets.
[00:10:08] <dmess> hi all... back from a weekend at Boy Scout camp...
[00:10:10] <davidf> Making a kit for retrofitting 7 X 12 & 7 x 10 mini's
[00:10:32] <davidf> Going to try them on ebay.
[00:10:45] <SkullWorks-PGAB> going to need to bring a bunch of toolholders if last year is any indication.
[00:10:53] <skinnypuppy34> Probably sell some david
[00:10:55] <rayh> Ah. You using the stock screws?
[00:11:04] <davidf> When is the fest?
[00:11:26] <davidf> Yeah. just making all the parts to mount the motoers, etc.
[00:11:32] <fenn> dmess did you get your merit badge? :P
[00:11:38] <BigJohnT> june 16-21 2008
[00:11:49] <skinnypuppy34> Where is the fest?
[00:11:51] <BigJohnT> galesburg IL
[00:11:58] <rayh> A EMC-CNC merit badge. Good idea.
[00:12:06] <davidf> Few hrs drive for me. :)
[00:12:11] <rayh> Get 'em when they're young.
[00:12:18] <fenn> if you can set up the embroidery machine to make the badge, you earn it
[00:12:25] <skinnypuppy34> Bout 12 hrs here
[00:13:06] <BigJohnT> http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?EMC_Fest_2008
[00:13:09] <rayh> fenn: We talked about a frosting squirter for little cookies.
[00:13:37] <BigJohnT> about 6 hrs from here
[00:13:40] <rayh> the embroidery machine's a good plan.
[00:14:02] <davidf> What does anyone think a retro kit for the 7 X 12 would go for, with all parts needed, no mods required?
[00:14:18] <fenn> there were several dudes on the mailing list this week asking embroidery questions
[00:14:22] <davidf> less motors...
[00:14:39] <rayh> put it on a large enough gantry and make king bed covers.
[00:15:30] <fenn> rayh: or use a 12 strut oligopod! :)
[00:15:55] <davidf> That a robot spider or what?
[00:16:00] <fenn> yeah basically
[00:16:04] <rayh> There you go. I drew up a hexapod for flame cutting but the customer was skeptical.
[00:16:08] <fenn> two robot spiders humping
[00:16:28] <davidf> I can see it now... staddling a king size bed. ACK!
[00:17:30] <davidf> G00 z10 G00 z0 G00 z10 F200...
[00:17:44] <rayh> A machinist I was with at IMTS saw the first K&T hexapod and thought it was a spider f^&%$#g a mushroom.
[00:17:49] <davidf> yipes
[00:17:57] <fenn> is flame cutting picky about height above the workpiece?
[00:17:58] <skinnypuppy34> hilarious
[00:18:27] <fenn> you'd have to hack the kinematics code to do something like plasma torch height control
[00:18:37] <fenn> since there's no exposed Z signal already
[00:18:54] <rayh> The flame needs to be held about the same distance above the work.
[00:19:10] <SkullWorks-PGAB> Flame cutting is much more tolerant of gap variation.
[00:19:23] <rayh> Sure there is in world coordinates.
[00:19:33] <fenn> right, just not in hal
[00:19:43] <fenn> it would probably be a 2 minute hack
[00:19:44] <rayh> But I don't know how the HAL pins would react to world.
[00:20:35] <davidf> Gotta go thanks all.
[00:20:38] <rayh> for you maybe. For me, years.
[00:20:53] <SkullWorks-PGAB> davidf - what would the kit do, swap in ballscrews or just drive the existing acme units?
[00:21:03] <davidf> Just drive it.
[00:21:15] <fenn> rayh: a good rule of thumb in estimating time is to multiply the number by two and go up to the next set of units
[00:21:23] <davidf> I have one set up. It does real well with the stock screws.
[00:21:30] <fenn> rayh: so in this case it would actually take about 4 hours
[00:21:31] <SkullWorks-PGAB> there are free prints for mounts to do that out there now
[00:21:37] <rayh> Yep.
[00:22:11] <davidf> You mean 4 hrs to make the parts ?
[00:22:25] <fenn> no 4 hours to add torch height control to the hexapod code
[00:23:43] <SkullWorks-PGAB> fenn - saw a 5 axis plasma unit cutting cartoon figures out of oil pan stampings...
[00:25:10] <davidf> SkullWorks-PGAB, there are plans out there that cost 49.95 and estimate 240 in parts, with 40 hrs work I think thats way high in parts cost and labor. This one can be put together in I thing about 3-4 hrs.
[00:26:10] <davidf> It uses only exising mounting holes and one clamp
[00:28:52] <SkullWorks-PGAB> No - there is another plan set - a pdf offered for free.
[00:29:01] <davidf> link?
[00:29:16] <SkullWorks-PGAB> sure - give me a few.
[00:29:47] <davidf> thanks. I'm planning on making all the needed parts and selling the whole kit as a unit.
[00:32:11] <SkullWorks-PGAB> http://jfettigmachines.com/lathekit.html
[00:32:48] <SkullWorks-PGAB> he used to sell them - now just allows people to use the prints
[00:38:27] <davidf> SkullWorks-PGAB, Thanks. Mine also drives the chuck as a 1600 step/rev indexing head and still allows using the main spindle motor normally, and manual cranking etc. Just no idea what it should go for and if it would sell.
[00:39:24] <davidf> I use mine for production work. It's a nice little machine for small stuff.
[00:39:49] <jlmjvm> rayh:thanks for the help with using the offset from the var file,was able to set up touchoff to give me h1-h5 selections
[00:39:54] <SkullWorks-PGAB> A turn key kit would sell.
[00:40:24] <davidf> I think so too. You mean the whole lathe, motors, drives, etc?
[00:40:51] <SkullWorks-PGAB> many people have the machine but not access to equipment to make the required adaptors.
[00:41:14] <SkullWorks-PGAB> no - just motormounts and flex couplings
[00:41:42] <davidf> Ah, good. That's what I wanted to hear. Low overhead. :)
[00:42:37] <davidf> Guess I could put one on ebay with a low start and see what happens, but I was hoping to get some suggestions on a starting price?
[00:43:13] <SkullWorks-PGAB> no idea there
[00:43:20] <davidf> First thought was double my parts cost, and figure $60.00 / hr for fabrication.
[00:44:25] <davidf> But I need to get set up for production before I have a good idea of the time involved to make them.
[00:45:59] <davidf> OK, gotta go. Thanks.
[00:46:27] <SkullWorks-PGAB> well hourly cost should also reflect efficency - for $60/hr I could make about 50 motor mounts - 6x kurt vises on a 10K spindle VMC.
[00:47:16] <jlmjvm> wish i had a kurt vise
[00:47:31] <jlmjvm> hopin santa brings me 1
[00:47:59] <jlmjvm> have a chinese kurt copy right now
[00:53:20] <SkullWorks-PGAB> there is a good US made copy of the original 6" angleloc thats about half the cost of a kurt, The original patent is expired and Kurt is only enforcing the patents on the newer extra travel versions.
[01:15:00] <SWPadnos> JymmmEMC, what?
[01:22:22] <JymmmEMC> SWPadnos: eeeesh
[01:22:27] <SWPadnos> heh
[01:31:21] <renesis> omg paper works awesome for deburring aluminum
[01:49:30] <JymmmEMC> renesis: so does a scotchbright pad
[01:49:41] <JymmmEMC> so go steal one from the kitchen
[01:57:23] <jmkasunich_> jmkasunich_ is now known as jmkasunich
[04:35:32] <tomp> re motor mounts: something like this is simple http://imagebin.org/11879 I couldnt find the original url, some bport retrofitter
[04:35:49] <tomp> its just rect tube stock
[04:42:24] <user__> user__ is now known as Skinnypuppy
[04:42:56] <Skinnypuppy> Here's some neat eyecandy on ebay
[04:42:57] <Skinnypuppy> http://cgi.ebay.com/Steam-Engine-6-Cylinder-Radial-for-Aircraft-or-Airplane_W0QQitemZ160179867304QQihZ006QQcategoryZ2594QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
[04:43:37] <Skinnypuppy> I wonder where it exhausts to
[11:10:35] <CIA-23> 03tissf 07TRUNK * 10emc2/docs/src/ (Submakefile index_fr.tmpl): French translation
[11:10:44] <CIA-23> 03tissf 07TRUNK * 10emc2/docs/html/gcode_fr.html: French translation
[11:44:14] <alex_joni_> alex_joni_ is now known as alex_joni
[17:06:39] <CIA-23> 03tissf 07TRUNK * 10emc2/docs/src/index.tmpl: French translation
[17:07:18] <skunkworks516> huh - when did cia start working again on #emc
[17:14:31] <jepler> just recently
[17:15:19] <skunkworks516> nice. Hi jepler. How is the bot?
[17:15:44] <skunkworks516> have you tried running your pluto step with it?
[17:15:54] <jepler> haven't touched it much lately
[17:16:09] <jepler> I should do that but I haven't
[17:16:16] <jepler> too busy working on emc to use it
[17:16:37] <skunkworks516> You're doing a great job :)
[19:49:03] <LawrenceG> fweep.. clean up on isle 3
[20:47:22] <fenn> banana, cookie, cookie, banana
[20:48:11] <fenn> sometimes it's not amazing what you can get done while procrastinating
[20:48:32] <anonimasu> yeah, and how much time you wasted while doing it
[20:49:12] <fenn> but my cookie addiction is a disease! it's not my fault, its the international cookie manufacturer conspiracy
[20:49:40] <fenn> the cookie industrial complex, if you will
[20:52:00] <skunkworks516> we bake our own cookies..
[20:52:19] <fenn> well, i baked me own cookies too, but that's besides the point
[20:53:05] <skunkworks516> what is your weakness? good old orios?
[20:53:29] <fenn> hm, just about all of them
[20:53:45] <fenn> except the peanut butter ones with peanuts in them :\
[20:58:12] <skunkworks516> we just baked some oatmeal cranberries last night.. Mainly because it was all mixed together in a jar from last Christmas. After mixing in the liquid (egg and butter) we put them in the oven. The last line of the recipe was 2013 ingredients should keep mixed together in jar for 1 month. (turned out ok though)
[21:00:26] <alex_joni> 2013?
[21:01:05] <jepler> U+2013 8211 EN DASH "-" Punctuation, dash
[21:02:02] <skunkworks516> did I miss something?
[21:02:21] <alex_joni> yeah, probably looking at the keys your were pushing
[21:04:03] <skunkworks516> http://imagebin.org/11895
[21:04:37] <jepler> on my screen, I saw "The last line of the recipe was ^2013 ingredients should keep ...", with the ^ in reverse video
[21:04:39] <alex_joni> that's sure some funny dash
[21:04:44] <alex_joni> same here
[21:05:15] <skunkworks516> ah - odd
[21:05:15] <jepler> if only all the IRC clients could agree on how to transmit non-ascii messages...
[21:05:27] <skunkworks516> maybe I hit alt or something
[21:05:28] <alex_joni> http://imagebin.org/11896
[21:05:51] <skunkworks516> funny :)
[21:06:35] <alex_joni> (and yeah.. my font is fairly oversized)
[21:10:15] <alex_joni> * alex_joni heads to bed
[21:10:19] <alex_joni> good night all
[21:10:50] <jepler> night alex
[21:11:09] <skunkworks516> Night alex
[21:50:09] <SWPadnos_> SWPadnos_ is now known as SWPadnos
[22:07:41] <SWPadnos___> SWPadnos___ is now known as SWPadnos
[23:36:49] <dmess> hi all
[23:46:34] <a-l-p-h-a> hey dmess
[23:47:13] <dmess> what's up ALPHA??