#emc | Logs for 2005-07-19

[00:33:01] <fenn> why the hell does it have to write usrmotWriteEmcmotCommand() success (0) five billion times?
[00:34:05] <fenn> oh nm my debug level's really high
[00:35:31] <anonimasu_> hm
[00:35:34] <fenn> no that's not it
[00:40:43] <Jymmm> fenn : You leave the channel for an hour, and when you come back the first thing you are ranting?! LOL I love it
[00:41:21] <anonimasu_> * anonimasu_ yawns
[00:45:15] <Jymmm> G'Morning anonimasu
[00:45:56] <anonimasu_> hehe
[00:45:57] <anonimasu_> morning
[00:46:40] <Jymmm> Watching mcGyver... His in some BioLab deep undergraound and there is a bio hazard contamination leak... self destruct activated (of course).... elevator not working.....
[00:47:17] <anonimasu_> nice
[00:47:18] <Jymmm> He KNOWS there's a maintance override on top of the elevator car.... pushes button, only goes a few inches per press
[00:48:00] <Jymmm> Now... he leaves the elevator... goes to a access control panel near a door... pulls out his swiss army knifwe and removes the panel from the wall...
[00:48:36] <Jymmm> He KNOWS there's a 40 lbs xfmr behind the panel, removes it and takes it back to the top of the elevator car....
[00:48:46] <anonimasu_> heh
[00:49:24] <Jymmm> He removes the elevator control panel, KNOWS the wiring diagram by heart, and connects TWO wires to the xmfr so it'll go faster, and it does.
[00:49:38] <Jymmm> *sigh*
[00:50:15] <fenn> has he used his pocket binoculars to reflect a cutting laser at the security robots yet?
[00:50:24] <anonimasu_> :]
[00:50:38] <anonimasu_> I would like to be like him
[00:57:03] <anonimasu_> * anonimasu_ yawns
[00:57:18] <anonimasu_> I am starting to feel tired
[00:58:52] <anonimasu_> hey robin
[01:00:29] <robin_sz> hi
[01:03:15] <anonimasu_> robin_sz: got any good ideas when designing a cnc lathe?
[01:05:43] <SWPadnos> where's the gum wrapper in this episode?
[01:06:49] <anonimasu_> or well, anyone..
[01:17:04] <fenn> turrets, lots of turrets
[01:17:24] <fenn> and mount it upside down so all the chips fall off the top
[01:17:33] <anonimasu_> hm, this is a small lathe
[01:17:38] <anonimasu_> cant justify having multiple turrents
[01:17:49] <fenn> bar feeder?
[01:17:52] <anonimasu_> nope
[01:17:57] <anonimasu_> 0,5m bed
[01:17:58] <fenn> depends on what you want to do with it i guess
[01:18:24] <anonimasu_> will be iron + aluminium + linear rails
[01:18:40] <fenn> linear rails on a lathe?
[01:18:44] <anonimasu_> yeah
[01:18:52] <fenn> sounds bad
[01:18:57] <anonimasu_> not really
[01:19:04] <anonimasu_> they are very stiff sideways..
[01:19:24] <fenn> are you building this from scratch?
[01:19:35] <Jacky^> goodnight
[01:19:43] <anonimasu_> yes
[01:20:04] <anonimasu_> I know pretty much what rails to use
[01:20:10] <anonimasu_> I have a good supplier with good prices
[01:20:48] <anonimasu_> seems like the comercial cnc lathes have linear rails..
[01:21:16] <fenn> i've never seen a lathe with linear rails, but that doesnt mean anything
[01:21:27] <anonimasu_> http://www.hurco.com/Hurco/English/Products/Lathes/TM+8+Lathe.htm
[01:21:32] <fenn> anyway, the thing about linear rails is they dont provide any hydrodynamic damping
[01:21:47] <anonimasu_> what do you mean
[01:21:56] <fenn> in regular slideways the oil film gets squished and sucked in and out of the gap between the sliding parts
[01:22:03] <fenn> energy from vibration is dissipated in the oil
[01:22:23] <anonimasu_> ah, like that..
[01:22:44] <anonimasu_> the rails are very accurate instead..
[01:22:48] <fenn> yes
[01:22:59] <anonimasu_> with 2 rails the load will be on the frame of the lathe
[01:23:03] <anonimasu_> directly
[01:23:10] <anonimasu_> it should be stiff enough
[01:23:14] <fenn> with small lathes though you dont have enough mass to prevent chatter
[01:23:24] <anonimasu_> yep..
[01:23:59] <fenn> my little lathe shattered toolbits all the time until i bolted it to a 100kg concrete block
[01:24:06] <anonimasu_> yeah, know how that is..
[01:24:10] <anonimasu_> mine does aswell..
[01:24:11] <anonimasu_> did
[01:24:17] <anonimasu_> it's going for sale in a week..
[01:24:59] <anonimasu_> :)
[01:25:07] <anonimasu_> I bolted mine to a steel frame..
[01:25:21] <anonimasu_> but the ways/screws/everything is so crappy it still does
[01:25:55] <anonimasu_> going to make the bed wide..
[01:26:07] <anonimasu_> so I get the carridge supported all the way..
[01:26:22] <anonimasu_> do you understand what I mean?
[01:27:15] <fenn> you mean thick?
[01:27:29] <fenn> or are you going to use two linear rails, in parallel
[01:27:32] <anonimasu_> yeah
[01:27:36] <fenn> heh
[01:27:38] <fenn> which?
[01:27:45] <anonimasu_> in parallel
[01:28:03] <anonimasu_> that way I'll always have the slide supported by the bed..
[01:28:17] <fenn> ok
[01:28:40] <fenn> is wider linear rail a lot more expensive?
[01:28:46] <anonimasu_> not really
[01:28:56] <fenn> you dont want to overconstrain the movement
[01:28:57] <anonimasu_> it's the slides that's expensive
[01:28:59] <anonimasu_> the rail is cheap..
[01:29:11] <fenn> hmmm i'm confused
[01:29:20] <anonimasu_> rail -------------------
[01:29:23] <fenn> rail is the precision ground hourglass shaped stuff, right?
[01:29:36] <anonimasu_> round or hourglassed.. yeah
[01:29:42] <fenn> crossed rollers are hourglass right?
[01:29:51] <anonimasu_> no idea
[01:29:54] <fenn> ok
[01:30:05] <fenn> but the part that moves on it is expensive?
[01:30:45] <anonimasu_> http://www.solectro.se/Products/Category.asp?SectionId=854
[01:30:46] <anonimasu_> yeah
[01:31:13] <anonimasu_> and http://www.solectro.se/Products/Category.asp?SectionId=941
[01:32:00] <fenn> come now, you could make that sort of thing yourself
[01:32:17] <anonimasu_> heh how do you grind them to spec?
[01:32:29] <anonimasu_> thoose things are so stiff
[01:32:37] <fenn> shim the rod until there's no clearance
[01:32:42] <fenn> use a precision level
[01:32:57] <fenn> that sort of thing
[01:33:10] <anonimasu_> I can afford real rail
[01:33:10] <anonimasu_> s
[01:33:20] <anonimasu_> I am just thinking yet
[01:33:27] <anonimasu_> got way too much projects other then that
[01:33:31] <anonimasu_> the mill toolchanger is more important
[01:33:40] <anonimasu_> but, I am amazed at cnc lathes :)
[01:33:48] <fenn> yeah you don't need a big one
[01:33:51] <anonimasu_> s/at/by
[01:33:54] <anonimasu_> yep
[01:33:57] <fenn> maybe 50mm swing
[01:34:09] <fenn> no tailstock
[01:34:11] <anonimasu_> I've got a 800kg normal lathe.. so I can turn most stuff
[01:34:14] <anonimasu_> yeah
[01:34:25] <fenn> big through bore
[01:34:33] <anonimasu_> and a large lathe at work..
[01:34:39] <anonimasu_> but it's for threading and doing small stuff :)
[01:34:53] <fenn> big lathe is for doing small stuff?
[01:35:03] <anonimasu_> nah, the cnc I am going to build is
[01:35:07] <fenn> ok
[01:35:19] <anonimasu_> threadcutting & stuff is time consuming on the big lathe
[01:35:20] <anonimasu_> :)
[01:35:28] <anonimasu_> or well I dont know now since I have a gearbox at it..
[01:35:40] <anonimasu_> but if you have to change gears and stuff by hand
[01:35:48] <anonimasu_> and well, it's not as cool ;)
[01:36:32] <anonimasu_> multi pass threading is nice on a cnc lathe
[01:37:13] <fenn> i'm wondering if rigid tapping cycle would work for threading
[01:37:25] <fenn> i'm sure this topic has come up a million times
[01:37:37] <anonimasu_> I dont know if emc handles lathes nicely
[01:37:55] <fenn> nobody's really worked on it, but a mill is just a big lathe turned on its side
[01:38:20] <anonimasu_> yeah true..
[01:38:23] <anonimasu_> for normal stuff it'd be easy
[01:38:26] <fenn> the problem is lathes have a lot more weird features, like redundant slides
[01:38:34] <anonimasu_> redurant slides?
[01:38:37] <anonimasu_> never heard the term
[01:38:46] <fenn> multiple tool slides, live tailstocks
[01:38:56] <anonimasu_> ah yeah
[01:39:00] <anonimasu_> not all lathes though
[01:39:03] <fenn> yeah
[01:39:04] <anonimasu_> the more advanced ones
[01:39:09] <fenn> overkill for most of us
[01:39:27] <anonimasu_> and they dont run everything off the same parser anyway
[01:39:43] <anonimasu_> I think they spawn off another thread for the other turrent and run it independently
[01:39:54] <anonimasu_> like you have a robot in a automated cell..
[01:39:59] <fenn> yeah because rs274 doesn't support more than one object moving relative to another
[01:40:25] <fenn> we talked about that yesterday
[01:40:27] <anonimasu_> has to do with how the parser handles stuff not objects..
[01:41:20] <anonimasu_> well, it's not a big issue anyway..
[01:41:31] <anonimasu_> you would have to run one parser per turrent..
[01:41:49] <anonimasu_> or well keep multiple sets of motion in the same file..
[01:42:31] <anonimasu_> and spawn off another parser that just parses the lines for that turrent..
[01:43:42] <anonimasu_> http://www.mmsonline.com/articles/040102a.html
[01:43:45] <anonimasu_> have a look
[01:46:50] <anonimasu_> I am trying to find info on the controller issue
[01:50:21] <fenn> that article wasn't very helpful.. it was just that guy saying how hard it is to do anything and you need to buy his software since you are so dumb
[01:50:32] <anonimasu_> * anonimasu_ sighs
[01:51:05] <fenn> i'm not saying you're dumb btw
[01:51:22] <anonimasu_> this always ends up as you whining about software prices, I dont care really I couldnt program a multi axis lathe by hand..
[01:51:35] <anonimasu_> it's 2 tools in cut, at minimum
[01:51:44] <anonimasu_> the sync issue seems to be handled at cam program level..
[01:51:53] <fenn> that's cause gcode is fucked
[01:51:56] <anonimasu_> ibm catia does muti tool lathes ;)
[01:52:04] <anonimasu_> that should tell you a bit about it..
[01:52:15] <fenn> ok
[01:52:26] <anonimasu_> boeing runs catis..
[01:52:28] <anonimasu_> catia ;)
[01:52:47] <anonimasu_> there seems to be very little info about it..
[01:53:16] <fenn> not many people can afford a $100000 piece of software
[01:53:32] <anonimasu_> oh, if you have a 500 000$ lathe
[01:53:41] <anonimasu_> 100000$ of software is change..
[01:53:47] <fenn> i guess
[01:54:10] <anonimasu_> http://www.ncengineering.co.uk/m16.htm
[01:54:14] <fenn> why not hire a programmer, sheesh
[01:54:31] <fenn> you could pay him to work all year
[01:54:48] <anonimasu_> ?
[01:55:19] <anonimasu_> seriously, if you are doing production of stuff, it's not a big issue..
[01:55:27] <anonimasu_> the software costs so little compared to the machines
[01:57:29] <fenn> this lathe has neat features like "Special colour paintwork" :)
[01:57:39] <anonimasu_> heh
[01:58:36] <fenn> there is a lot of stuff in there
[01:58:42] <fenn> i dont know what does what
[01:58:56] <anonimasu_> yeah
[01:59:10] <anonimasu_> I am just trying to find info about handling multiple tools..
[01:59:43] <fenn> why do they have multiple workpiece spindles?
[02:00:11] <fenn> just for compactness?
[02:00:58] <fenn> heh it calls your cellphone if it has a problem
[02:01:08] <anonimasu_> hm, I guess it's so they can chuck the work in both ends
[02:01:20] <anonimasu_> or turn both edges..
[02:01:30] <anonimasu_> turn the part :)
[02:03:17] <anonimasu_> or machine multiple parts..
[02:03:26] <anonimasu_> with the 2nd tool
[02:06:28] <anonimasu_> fenn: it seems like the cam program takes care of the sync issues
[02:07:06] <fenn> yeah it has to
[02:07:11] <anonimasu_> you insert sync points in the cam program, and it makes sure the controllers/controller syncs there
[02:07:26] <anonimasu_> so I think they spawn a interpreter per turrent
[02:07:40] <anonimasu_> and use one as slave..
[02:08:18] <anonimasu_> to do it with emc we would need a sync mechanism
[02:08:38] <fenn> there might be one already
[02:09:02] <anonimasu_> and the possibility to spawn a separate emc copy/interpreter thread for the other spindle
[02:09:39] <fenn> that's do-able, but it would take a bit of coding
[02:09:42] <anonimasu_> hm, I havent seen anything about one but yeah there might be..
[02:09:50] <anonimasu_> might be just better to have a separate instance of emc..
[02:09:54] <anonimasu_> and just deal with the sync issue
[02:12:37] <anonimasu_> :)
[02:20:46] <anonimasu_> night
[02:41:26] <fenn> helldamnfart
[02:47:07] <Jymmm> * Jymmm hands fenn the HellRaiser dvd
[02:48:49] <fenn> i cant figure out where EMC_DEBUG is supposed to get set
[02:57:40] <LawrenceG> fenn: you mean the one in the xxx.ini file?
[03:06:45] <fenn> no i'm trying to make this debug message check the variable EMC_DEBUG to see if it's okay to print the debug message or not
[03:07:09] <fenn> but it errors out on compile, says "EMC_DEBUG" not defined
[03:07:24] <fenn> even though i have #include emcglb.h
[03:07:52] <LawrenceG> kernel or user space program?
[03:08:36] <fenn> usrmotintf.cc
[03:09:48] <fenn> i'm not sure how you know
[03:10:00] <fenn> whether it's user or kernel space
[03:13:09] <LawrenceG> on line 884 in int usrmotInit(char *modname) routine, see emcmotDebug = &(emcmotStruct->debug);... this looks like the debug flag you are looking for
[03:15:51] <LawrenceG> my sources are a few weeks old
[03:16:55] <fenn> i thought EMC_DEBUG was a global variable that you used by comparing it to some bit flags
[03:17:27] <fenn> no idea what emcmotDebug is
[03:19:20] <LawrenceG> I havent been in this code.... couldnt see any conditional prints as examples... try printing out the value of the debug flag I gave you and see if it has the bits you need
[03:21:06] <fenn> emctaskmain.cc uses this: if (EMC_DEBUG & EMC_DEBUG_TASK_ISSUE) {
[03:21:07] <fenn> rcs_print_error("error executing command %d:%s\n", cmd->type,
[03:21:07] <fenn> emc_symbol_lookup(cmd->type));
[03:21:41] <fenn> so i copied it over expecting it to work, but i guess they don't share namespaces
[03:24:05] <LawrenceG> my guess is emctaskmain.cc is on the rt side (kernel module) and usrmotintf.cc is a user side code... guess based on use of printf's in usrmotinf
[03:24:43] <fenn> yeah i was wondering why they were all different
[03:26:31] <LawrenceG> kernel stuff uses printk instead of printf as user code usually has a connected console and the kernel modules use the various log files and cant talk to the user console
[03:27:31] <LawrenceG> are you still working on wiki?
[03:30:21] <fenn> no i havent touched the wiki in a while
[03:31:17] <fenn> don't see any printk's anywhere
[03:38:19] <LawrenceG> is the old wiki still set to r/o? I have wanted to update several pages but have run into r/o pages... should I be using the new one?
[03:39:01] <LawrenceG> rcs_print_error() is probably a wrapper around printk
[03:39:40] <fenn> er, the new one is not up anywhere yet
[03:39:52] <fenn> you have to set up a user account to edit pages
[03:40:21] <fenn> http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?BasicSteps
[03:47:34] <CIA-8> 03fenn * 10emc2/src/emc/motion/usrmotintf.cc: commented out spammy debug messages, is there a way to check EMC_DEBUG level to turn this back on if i want to?
[03:49:18] <CIA-8> 03fenn * 10emc2/src/emc/task/emctaskmain.cc: added checks for EMC_DEBUG level so certain debug messages aren't always printed
[03:50:12] <Jymmm> I just picked up a dial indicator... do they always start out at -0.0015" by chance?
[03:50:26] <Jymmm> err -0.015"
[03:50:31] <fenn> just rotate the dial face
[03:51:02] <Jymmm> I know I can do that, but the hundreds dial is negative too.
[03:51:14] <Jymmm> err tenths
[03:53:27] <SWPadnos> the ones that go +/- usually start at the negative end, I think
[03:53:57] <SWPadnos> you adjust it to 0 against the piece, and you can see deviation on either side
[04:30:19] <Jymmm> SWPadnos: Ok, I sorta thought something like that (cause setup is a bitch)
[04:30:24] <Jymmm> but wasn't sure.
[04:36:58] <SWPadnos> That's my assumption about them anyway - I could be wrong (but it works for me :) )
[05:19:24] <Jymmm> Eh, I was mostly curious if this was commonplace or jsut this one in particular
[06:48:30] <A-L-P-H-A> hey folks.
[06:48:48] <Jymmm> wha up dawg!
[06:52:58] <A-L-P-H-A> dunno.
[06:53:08] <A-L-P-H-A> beginning to be very interested in this girl. Karen. :)
[06:57:13] <Jymmm> does karen have a penis?
[06:59:13] <A-L-P-H-A> Jymmm? wtf kinda question is that?
[06:59:13] <Jymmm> ROTF... a VERY good question depending on where you met her?
[06:59:13] <A-L-P-H-A> My friend's exGF, which he's setting me up with. They're still good friends.
[06:59:13] <Jymmm> A-L-P-H-A Just pulling your chain is all.... no need to get your panties in a bunch =)
[06:59:13] <Jymmm> that's cool
[06:59:13] <Jymmm> how old is she?
[06:59:13] <A-L-P-H-A> 24, I'm 26
[06:59:13] <Jymmm> either of you still live at home?
[06:59:13] <A-L-P-H-A> Both of us.
[06:59:23] <Jymmm> that'll be a lil rough.
[07:00:37] <Jymmm> Bah, I need to rewrite one of my php scripts
[07:00:43] <A-L-P-H-A> php is fun.
[07:00:55] <Jymmm> ba humbug
[07:01:34] <Jymmm> just necessity
[07:02:06] <Jymmm> some of my pages aren't getting index as well as I would like.
[07:03:14] <A-L-P-H-A> indexed by who? google?
[07:03:34] <Jymmm> yeah, only 4th listing on some pages.
[07:04:08] <Jymmm> but I know the reason, thus the script rewrite
[07:04:36] <A-L-P-H-A> well, that isn't bad then
[07:05:02] <Jymmm> Yeah it is, I have #1 in other terms, just not some of them.
[07:05:44] <Jymmm> and I want it in others that arent' even there. thats the biggest reason for it.
[07:07:03] <Jymmm> I was being lazy when I wrote it =)
[07:12:13] <A-L-P-H-A> Time: 02:26:01 -0500 GMT, Windows XP Professional, Service Pack 2 (5.1 - 2600), AMD XP 2800+ running at (1-AMD , 2123MHz, 512KB (42% Load)), DDR400 RAM Usage: 705/1024MB (68.85%), C: 39.04gb of 75.42gb free, D: 0gb of 0gb free, N: 30.12gb of 372.62gb free, Current Uptime: 1day 11hrs 12mins 51secs, Record Uptime: 3wks 12hrs 48mins 50secs, 3 Samsung 19" flat monitors (1 Trinitron, 2 CRT).
[07:46:41] <Jymmm> G'Night Folks!
[10:01:41] <Jacky^> hi
[10:05:33] <anonimasu_> morning everyone
[10:08:36] <Jacky^> morning anonimasu_
[10:11:48] <anonimasu_> how's things going?
[10:14:03] <Jacky^> i'm sleeping yet.. *_*
[10:15:36] <Jacky^> latest night gone to the bed at 4:00
[10:16:10] <Jacky^> * Jacky^ yaahhnnn
[10:27:50] <anonimasu_> lol
[10:27:51] <anonimasu_> I am too
[10:28:49] <anonimasu_> *drinks a glass of juice to wake up
[13:33:07] <anonimasu_> hey jacky
[13:33:47] <Jacky^_> 'lo anonimasu_ :)
[13:34:24] <anonimasu_> what's up?
[13:34:34] <anonimasu_> I've finally started drawing on the toolchanger
[13:35:34] <Jacky^_> :))
[13:35:34] <Jacky^_> nice
[13:36:24] <Jacky^_> I'm soldering..
[13:36:48] <Jacky^_> build a parallel port interface for a friend
[13:36:48] <anonimasu_> although I am having design issues :D
[13:37:03] <anonimasu_> it's not a big deal.. but trying to minimize the motion..
[13:37:57] <Yuga> anonimasu... once u finished the diagram for the tool changer u can dcc it to me :P
[13:38:17] <anonimasu_> Yuga: if it turns out good..
[13:38:33] <anonimasu_> need to have a talk with my father about it..
[13:38:56] <Jacky^_> :)
[13:39:15] <anonimasu_> the trouble right now is either use the orginal design.. or use a new one..
[13:40:01] <anonimasu_> the orginal one would work on a machine with more space
[13:40:07] <anonimasu_> while this design ends up with lots of more motion
[13:41:31] <anonimasu_> more motion is less elegant
[13:45:40] <anonimasu_> wb
[13:46:28] <Jacky^> :)
[13:52:26] <anonimasu_> now if my computer would stop being stupid and let me launch the cad program
[14:07:05] <Yuga> lol
[14:07:37] <Yuga> u got a pic of your cnc machine? interested to c what ppl have
[14:07:41] <anonimasu_> no :)
[14:07:57] <Yuga> home made?
[14:08:10] <anonimasu_> a retrofit..
[14:08:16] <Yuga> what spindle u using?
[14:08:43] <anonimasu_> 2kw spindle..
[14:08:49] <anonimasu_> about 4000rpm max..
[14:08:57] <anonimasu_> but at the gearing I have too little torque to cut alu
[14:08:58] <Yuga> home made
[14:09:00] <anonimasu_> no
[14:09:12] <Yuga> name?
[14:09:12] <anonimasu_> it's a retrofitted mill :)
[14:09:55] <Yuga> name of the spindle?
[14:10:17] <anonimasu_> ther's no name of the spindle..
[14:10:36] <anonimasu_> :)
[14:10:59] <Yuga> aaarrrg
[14:11:14] <Yuga> want something 2 read
[14:11:44] <anonimasu_> read?
[14:12:11] <anonimasu_> I had the mill before for a long time but it had so bad screws that it was unusable
[14:12:20] <anonimasu_> so I converted it to cnc with ballscrews instead :)
[14:12:38] <Yuga> wish i could frigign afford ballskrew's...
[14:12:48] <Yuga> the problem is that i need a 3m ballscrew
[14:12:57] <Yuga> not many ppl make them that length
[14:13:24] <anonimasu_> well, for a that large machine rack&pinion would be a better option
[14:13:54] <Yuga> well i was going to use a rack... but i got told i was being stupid
[14:14:03] <Yuga> so u recon a rack is the way to go?
[14:14:13] <anonimasu_> yeah, the larger machines use rack & pinion
[14:14:19] <anonimasu_> although helical pinoins
[14:14:36] <Yuga> ya.. and guess how many places sell helical pinions :)
[14:14:55] <Yuga> probibly have 2 buy 1m length's and join them
[14:15:01] <Yuga> which is quite a mission
[14:15:03] <anonimasu_> ballscrews?
[14:15:07] <anonimasu_> no way :)
[14:15:14] <Yuga> no.... the rack's
[14:15:20] <anonimasu_> yeah, that can be done
[14:15:30] <anonimasu_> but you would want helical ones
[14:15:40] <anonimasu_> arent there acme type screws that has the right length?
[14:15:49] <anonimasu_> what kind of precision are you aiming for
[14:15:55] <Yuga> got quotes on non-helical one's
[14:16:36] <Yuga> .05 mm would be cool
[14:16:48] <Yuga> not sure if i will get that thou
[14:17:23] <anonimasu_> well, you've got quite a task..
[14:17:55] <Yuga> ya... i know
[14:18:03] <Yuga> what's the precision on your's?
[14:18:39] <anonimasu_> enough?
[14:18:55] <Yuga> lol... and that would be?
[14:19:20] <anonimasu_> somwhere around 0,01mm..
[14:19:31] <anonimasu_> thats when I measure..
[14:19:35] <anonimasu_> but it's not true when I machine..
[14:19:52] <Yuga> well friggin hell i want something 5 times that :)
[14:19:58] <Yuga> arent asking to much is it?
[14:20:12] <anonimasu_> maybe.. :D
[14:20:14] <anonimasu_> with the size of the machine
[14:20:34] <Yuga> true... the size is a biatch... problem is that's what size the wood comes in
[14:21:05] <Yuga> 2750x1830
[14:21:15] <anonimasu_> I am unsure on how good the precision of the racks & pinions are
[14:21:25] <anonimasu_> the helical ones are way better since they have more contact..
[14:22:32] <anonimasu_> you will need very large ballscrews for that distance..
[14:22:41] <anonimasu_> if you want ballscrews
[14:22:46] <Yuga> ya...
[14:23:07] <anonimasu_> around or over 20mm
[14:23:35] <Yuga> was looking at 20 and 30mm one's
[14:23:40] <anonimasu_> ok
[14:23:45] <Yuga> but i am still afraid of the whip
[14:23:51] <Yuga> expecialy over 3 m
[14:24:07] <anonimasu_> yeah
[14:24:14] <anonimasu_> and at the speeds you will be running
[14:24:32] <anonimasu_> have a look at http://www.lmwatts.com/cnc.html
[14:24:55] <Yuga> had a look at that... he is insane
[14:25:23] <anonimasu_> lol
[14:27:25] <Yuga> need to find a spindle for my machine... any idea's where to look?
[14:27:29] <Yuga> and dont say google :)
[14:27:32] <Yuga> already there
[14:28:00] <anonimasu_> hm, how much are you prepared to spend?
[14:28:20] <Yuga> not a clue... hence the reason i am looking
[14:28:30] <Yuga> as little as possible i would guess :)
[14:28:57] <anonimasu_> http://www.shopcamrouters.com/products_spindles_perske.htm
[14:30:00] <Yuga> dont u hate these buggers who dont have prices on there pages?
[14:30:22] <anonimasu_> yep
[14:55:07] <Yuga> still alive?
[14:55:12] <Yuga> check this out. http://www.inshorepowerboats.com/cnc%20stuff/CNCROUTER.htm
[14:59:17] <websys> anon - saw your comment about multi tool cuts - we handle the sync points - any decent cam package will
[15:50:17] <anonimasu_> websys: yeah, but how does the controller handle it
[15:50:46] <anonimasu_> websys: that's the big deal :D
[15:51:55] <anonimasu_> * anonimasu_ yawns
[15:53:14] <websys> Well you put in a sync point for wach axis pair and if one pair satisfies, it waits until the other gets to it's sync point
[15:53:27] <websys> s/wach/each/
[15:53:46] <anonimasu_> yeah
[15:53:52] <anonimasu_> but do the control have 2 sets of files
[15:54:06] <anonimasu_> websys: or 2 controls
[15:54:40] <anonimasu_> websys: ie are the tools/turrents separate machines, that just sync?
[15:54:41] <websys> depends on control, some use 2 files, others use gcodes to tell which axis pair moves
[15:54:48] <anonimasu_> ok :)
[15:54:49] <anonimasu_> thank!
[15:54:50] <anonimasu_> a
[15:54:53] <anonimasu_> err thanks!
[15:54:56] <anonimasu_> that helpes lots :)
[15:54:56] <websys> yw
[15:55:05] <anonimasu_> we had a large discussion on how to solve it,
[15:55:27] <websys> no standard solution, seen it both ways
[15:55:32] <anonimasu_> if you use gcodes, like that can you still move both turrents at the same time?
[15:55:39] <websys> yes
[15:55:55] <anonimasu_> hm, seems like both me and fenn were right :)
[15:56:37] <websys> I think it's the Mazak controls that use 2 files
[16:01:01] <anonimasu_> hm, having 2 separate controls and handling sync points seems like the easiest way..
[16:01:43] <anonimasu_> atleast if you are going to do it with emc..
[16:09:56] <websys> True - with gcodes it has to precalculate the movements
[16:11:23] <websys> with 2 controls you could probably have each control emit an NML message at each sync point
[16:11:25] <anonimasu_> and spawn two realtime threads one for each axis
[16:11:33] <anonimasu_> * anonimasu_ nods
[16:11:46] <fenn> I really like this dust collection idea: http://www.shopcamrouters.com/advantage_gallery.htm
[16:11:49] <anonimasu_> also controlling the two turrents would be easy
[16:12:03] <anonimasu_> since all you would need were a interface that could connect to both
[16:13:03] <anonimasu_> how does the sync messages look at other machines?
[16:13:23] <anonimasu_> do you place a "WAIT for 4389013" gcode
[16:13:51] <anonimasu_> and it waits for the other turrent to return "I am at 4389013"
[16:16:46] <websys> Post we have uses G800 - G8XX do decalre a sync point
[16:17:15] <websys> doesn't say where it is just that it got to the sync point
[16:17:39] <anonimasu_> hm, yeah I guess controllers dont skip sync points ever
[16:17:40] <anonimasu_> :)
[16:18:31] <websys> so you program turret #1 with a G800 and then turret #2 with the G800 at the proper point in the code where it should match
[16:19:33] <anonimasu_> if they are out of sync the turrent just waits for the other turrent to issue the matching code?
[16:19:44] <websys> yes
[16:19:48] <anonimasu_> ok
[16:19:52] <anonimasu_> nothing too fancy :)
[16:20:35] <websys> much better than the old way where they used XYUV
[16:20:45] <anonimasu_> xyuv?
[16:20:51] <anonimasu_> never heard about that
[16:20:58] <fenn> multiple axes
[16:21:09] <anonimasu_> ah, yeah
[16:21:13] <websys> there you programed each move of XY with the matching UV axis pair
[16:21:27] <anonimasu_> sounds messy
[16:21:33] <websys> Horrible
[16:21:46] <fenn> why is that so hard?
[16:22:00] <anonimasu_> what would happen if you had a move with one axis that would take longer to complete?
[16:22:10] <fenn> ah right
[16:22:11] <anonimasu_> would the turrent done with the motion stop and wait for the next motion?
[16:22:18] <anonimasu_> or would they be out of sync?
[16:23:05] <fenn> what if you had a gcode for "synchronized motion"
[16:23:05] <websys> each pair would wait for the other pair to satisfy
[16:23:31] <anonimasu_> very horrid..
[16:23:36] <anonimasu_> seems like a good way to waste time
[16:24:07] <websys> like this is :)
[16:24:27] <fenn> i am a black belt in procrastination
[16:24:41] <anonimasu_> fenn: please procrastinate a bit
[16:24:46] <anonimasu_> * anonimasu_ goes to sleep
[16:26:14] <anonimasu_> websys: this is constructive :)
[16:28:50] <websys> who's building a 4 axis lathe?
[16:29:44] <anonimasu_> no one yet :)
[16:29:54] <fenn> looks like you're going to have to now, anon
[16:30:04] <anonimasu_> fenn: why=
[16:30:16] <steve_stallings> Not building, but I have a 3 axis Hardinge Superslant with twin Fanuc 6T controls that might become a retrofit candidate.
[16:30:17] <fenn> well, why not?
[16:30:27] <anonimasu_> time?
[16:30:40] <fenn> well why are you building a cnc lathe then?
[16:30:45] <anonimasu_> I'll be building a normal lathe though, too small to justify having mutiple turrents..
[16:30:56] <anonimasu_> fenn: why do I need mutiple turrents?
[16:31:10] <fenn> i dont know, why does anyone need multiple turrtets/spindles
[16:31:15] <anonimasu_> because it would be cool ;)
[16:31:35] <websys> and fast
[16:31:41] <anonimasu_> yeah..
[16:31:46] <anonimasu_> I am thinking 0,5m bed :D
[16:32:09] <steve_stallings> It is common to have one turrent centerdrill, tap, and act as tailstock while the other profiles the OD.
[16:32:58] <anonimasu_> yeah :)
[16:33:02] <anonimasu_> but for a 0,5m lathe..
[16:33:03] <anonimasu_> :D
[16:33:10] <websys> why stop there - put live tooling on the turret and make a mill/trun combo
[16:33:18] <fenn> they use taps? do you mean interior threadcutting?
[16:33:35] <anonimasu_> * anonimasu_ is interested in the spindle/axis sync issue :)
[16:33:44] <SWPadnos> aren't we all
[16:33:59] <anonimasu_> yeah
[16:33:59] <anonimasu_> hehe
[16:34:03] <fenn> no i'm sick to death of it actually :)
[16:34:09] <anonimasu_> fenn: why?
[16:34:21] <SWPadnos> put turrets on opposite sides - you can do rough and finish in the same pass
[16:34:23] <steve_stallings> Yes interior threadcutting, a tap is still faster and will work with only a single axis (3rd), e.g. my 3 axis machine.
[16:35:31] <websys> Yeah, roughing with a tap doesn't work too well
[16:36:06] <SWPadnos> that reminds me - I should finally be receiving rubber-flex collets for my Tapmatic today. Woohoo! :)
[16:39:30] <anonimasu_> brb
[19:14:46] <fenn> ah the exciting world of teledildonics..
[19:20:56] <anonimasu_> ?
[19:26:10] <fenn> jeez linux webcam support really sucks
[19:26:25] <fenn> i want to put a webcam right on the head of a hexapod
[19:29:25] <fenn> apparently the only webcams that work with linux are the expensive ones
[19:34:07] <LawrenceG> fenn: get a wintv go card (about $20 on ebay) and a small camera... much better quality than the web cams and you can watch tv on your pc!
[19:34:35] <fenn> hmm it doesnt get much cheaper than $7.99 shipped
[19:36:51] <LawrenceG> yep... uses bttv driver... good support on 2.4 and 2.6 kernels
[20:00:51] <fenn> i meant the webcam.. logitech quickcam
[20:05:08] <anonimasu> fenn: buy a better cam
[20:05:42] <fenn> why?
[20:05:50] <anonimasu> I have a quickcam.. the image quality is so very bad..
[20:06:39] <fenn> any recommendations?
[20:06:49] <anonimasu> not really
[20:06:56] <anonimasu> not just the cheapest logitech cams..
[20:06:57] <anonimasu> :)
[20:07:05] <anonimasu> did you see the impeller I pastes yesterday?=
[20:07:08] <fenn> yeah
[20:07:13] <anonimasu> that's about the best a quickcam can do..
[20:07:40] <fenn> that's about what i'm expecting
[20:08:01] <anonimasu> hm ok..
[20:08:53] <fenn> i want to have hexapod-ish greenhouse garden tending robot
[20:09:02] <fenn> like the robo-garden or whatever it was called
[20:09:10] <fenn> but practical
[20:09:27] <fenn> possibly some sort of streaming webcam for internet use
[20:09:52] <fenn> might be a dangerous time sink
[20:09:59] <anonimasu> heh yeah
[20:10:11] <anonimasu> but not too hard
[20:10:21] <anonimasu> the control part :)
[20:20:10] <robin_sz> mee?
[20:20:12] <robin_sz> p
[20:35:03] <lilo> [Global Notice] Hi all. Just a reminder. We continue to need your help to test hyperion-ircd 1.0 release candidate, the code we'll using on the freenode production network in the near future. To help out, please open a client on irc.freenode.net port 9001 and use the testnet.
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[20:41:00] <Jymmm> Hola !
[20:48:44] <Jymmm> anyone know of a cheap tach I could make/buy to toss on a stepper (for testing purposes)?
[21:05:41] <fenn> a dc hobby motor
[21:06:01] <fenn> acting as a generator, should give somewhat proportional Voltage vs rpm
[21:06:09] <fenn> not a very clean signal though
[21:06:33] <robin_sz> a tach?
[21:06:40] <robin_sz> whjats wrong with an encoder?
[21:06:41] <fenn> or you could put a banded ring on it and use the 60Hz flickering of a fluorescent light fixture
[21:07:03] <fenn> synchronous aliasing, like on a record turntable
[21:07:14] <robin_sz> but ... why?
[21:07:21] <fenn> to see how fast it's going of course
[21:07:27] <robin_sz> I mean its a stepper .. you know how fast its going
[21:07:35] <fenn> well, dont ask me
[21:08:00] <robin_sz> I can see a encoder being useful to monitor lag
[21:08:05] <robin_sz> but a tach?
[21:08:07] <robin_sz> shrug
[21:08:54] <robin_sz> anyway ... US Digital do encoders for $19
[21:08:54] <fenn> * fenn goes to pick blackberries again
[21:09:09] <fenn> heh i bought servos with encoders on them for $19 each
[21:09:16] <robin_sz> eBay?
[21:09:20] <fenn> from jon elson
[21:09:23] <robin_sz> ah
[21:09:31] <robin_sz> special price huh?
[21:09:40] <fenn> not really
[21:09:43] <fenn> that's what he bought them for
[21:10:08] <fenn> http://www.herbach.com/Merchant2/merchant.mv?Screen=PROD&Store_Code=HAR&Product_Code=TM02MTR4551&Category_Code=SERVO
[21:10:54] <fenn> little motors
[21:11:03] <fenn> not too little though
[21:11:50] <robin_sz> * robin_sz looks
[21:12:33] <robin_sz> nice enough
[21:12:56] <fenn> anyway in a hexapod all 6 motors are working at once to move, say, +X
[21:13:12] <cradek> 176 oz-in is close to the power of my steppers
[21:13:17] <robin_sz> in theory., yes
[21:13:22] <cradek> does a tiny servo like this have any torque at slow speeds?
[21:13:33] <robin_sz> same torque at all speeds
[21:13:36] <robin_sz> (roughly)
[21:14:02] <robin_sz> 11 in/lb .. thats flea power
[21:14:12] <fenn> wtf kind of units is in/lb anyway
[21:14:21] <robin_sz> my 4A steppers do 5.7Nm .. thats what, 800 in lb
[21:14:36] <robin_sz> oh in 0z I meant
[21:14:44] <robin_sz> so 800 / 20 then
[21:16:13] <cradek> % units 5.7N*m lb*in*gravity
[21:16:13] <cradek> * 50.449251
[21:16:14] <fenn> 16 Oz in a pound right?
[21:16:26] <robin_sz> umm, ui thought it was 20
[21:16:37] <fenn> i think that's some kind of imperial oz
[21:16:38] <robin_sz> not sure though
[21:17:00] <cradek> % units lb oz
[21:17:00] <cradek> * 16
[21:17:02] <fenn> or a USGS ounce :)
[21:17:05] <cradek> don't you guys have units?
[21:17:19] <fenn> yeah i've been using the hell out of it lately
[21:17:22] <robin_sz> Yeah .. Newtons, and metres
[21:17:40] <fenn> robin_sz: units is a linux program
[21:18:16] <robin_sz> never needed it .. I use SI units and simply pour scorn on all the rest. easier that way ;)
[21:18:36] <cradek> and scorn makes you so many friends too
[21:18:51] <robin_sz> shrug ...
[21:19:01] <robin_sz> its all part of my plan
[21:19:07] <robin_sz> to convert the USA to decimal
[21:19:11] <cradek> good luck
[21:19:34] <robin_sz> drag them kicking and screaming into the 20th century
[21:19:35] <jepler> you can write things in decimal inches, decimal feet, or decimal miles. this is a perfectly decimal country.
[21:19:56] <robin_sz> well, SI then
[21:20:02] <fenn> well, those that live here haven't had much luck converting others to SI
[21:20:29] <robin_sz> its OK, the chinese will sort that out
[21:20:33] <fenn> (its the 21st century btw)
[21:20:39] <robin_sz> yeah I know
[21:20:45] <fenn> ok :)
[21:20:51] <jepler> In about 2060 it'll be the next "simple" expanation of the cultural and political divides in this country: inch state / metric state
[21:20:56] <fenn> don't you mean, "drag them kicking and screaming into the 18th century"
[21:21:08] <robin_sz> i wasnt going to try and drag the USA into the 21st century .. too much of a challenge, I was simply going to try for the 20th to start off with
[21:22:58] <robin_sz> anyway ...
[21:23:11] <robin_sz> today I pruchased a nice compressor
[21:23:50] <robin_sz> hydrovane rotary
[21:24:10] <robin_sz> to replace the HUGE 18hp screw compressor
[21:24:33] <robin_sz> how I hat that
[21:24:35] <robin_sz> hate
[21:24:36] <fenn> why don't they provide compressed air as a utility service?
[21:24:50] <robin_sz> hmmm
[21:25:04] <robin_sz> perhaps I should sell it to my neighbours
[21:25:14] <robin_sz> I was thinking of selling the waste heat from the laser
[21:25:35] <fenn> seems a lot more efficient not to convert rotary->electric->rotary->air power
[21:25:56] <fenn> btw what's your electric bill like?
[21:26:11] <robin_sz> frightening
[21:26:32] <robin_sz> no, terrifying
[21:26:43] <fenn> ah, you mean "terrific" :)
[22:00:22] <Jymmm> anyone know of any constructionmethods for building a vacuum holddown table by chance?
[22:21:35] <Yuga> (60% duty cycle) <--- probibly a stupid question... just been wondering for some time
[22:22:15] <Jymmm> Yuga are you asking what "duty cycle" means?
[22:24:25] <Jymmm> General definitions here --> http://www.google.com/search?q=define%3Aduty+cycle&sa=Search+Google
[22:24:37] <Jymmm> http://www.google.com/url?sa=X&start=17&oi=define&q=http://www.ozarc.com/welding_terms.htm
[22:24:38] <Yuga> Jymmm... first time i have ever asked
[22:24:51] <Jymmm> what was the question though?
[22:25:20] <Jymmm> you made a statment, never asked a question.
[22:25:59] <Yuga> some how i think u understood the question
[22:26:04] <Yuga> thank's for the answer
[22:26:13] <robin_sz> Jymmm: vac table?
[22:26:17] <Yuga> now i know what 60% duty cycle means
[22:26:25] <Jymmm> robin_sz yeah
[22:26:32] <robin_sz> easy :)
[22:26:51] <robin_sz> you want cheap or pro?
[22:26:59] <Jymmm> robin_sz well shit, let me make it harder for you then... cheap.... shopvac
[22:27:18] <robin_sz> ahh, thats easy ...
[22:27:22] <robin_sz> first dial 911
[22:27:27] <Jymmm> done
[22:27:31] <robin_sz> good.
[22:27:44] <robin_sz> now pre-preapre the claim form for the insurance after the fire
[22:27:55] <Jymmm> insurance?
[22:28:00] <Jymmm> whats that?
[22:28:04] <Jymmm> nm, go on
[22:28:17] <robin_sz> oh, well, get some fire insurance if using a shop vac
[22:28:25] <robin_sz> because it will set fire real quick
[22:28:40] <robin_sz> see, they rely on the air going through them to cool the motor
[22:28:56] <robin_sz> use em for a vacuum rig and they overheat and set on fire
[22:29:29] <Jymmm> damn... I didn't even think about the motor cooling aspects.... ok alternative method?
[22:29:58] <robin_sz> well, a vac pump is a good choice .. but lets not worry about that for a minute
[22:30:04] <robin_sz> lets look at the clamp first
[22:30:54] <robin_sz> you need top plate
[22:31:03] <Jymmm> acrylic
[22:31:13] <robin_sz> with some 3mm slots in a grid
[22:31:42] <robin_sz> some neoprene or silicon tube to put inthe slots to create the seal
[22:31:50] <robin_sz> use say a 30mm grid
[22:32:12] <robin_sz> and you can put seal in whatever sahpes are useful for the piece you are trying to clamp
[22:32:17] <robin_sz> ok?
[22:32:26] <robin_sz> the slots help distribute the vacuum too
[22:32:33] <Jymmm> are these slots going all the way thru the material?
[22:32:44] <Jymmm> (thru hole)
[22:33:49] <Jymmm> at first, I was thinking of making a shallow box, drill a grid of holes on the top, and attach vacuum
[22:33:50] <robin_sz> no
[22:34:07] <robin_sz> they are just there to hold the sealing strip
[22:34:33] <robin_sz> then you need a few point where the vacuum is connected
[22:34:38] <Jymmm> http://www.woodweb.com/knowledge_base/Advantages_of_vacuum_clamping.html
[22:34:47] <Jymmm> are you talking something like that?
[22:35:09] <robin_sz> I'd use some 8mm nylon tube and a push-fit manifold to distribute the vacuum
[22:36:34] <robin_sz> not really
[22:36:43] <robin_sz> thats single jigs for each job
[22:37:05] <robin_sz> I was thinking of a universal table top, where you move the sealing strip to whatever you need at the time
[22:38:47] <robin_sz> http://www.techno-isel.com/cnc_routers/Accessories2.htm
[22:38:51] <robin_sz> like that
[22:39:08] <robin_sz> all you need then is some way of controlling the vaccum
[22:39:29] <robin_sz> the cheap way is just ballvalves at the front of the table
[22:39:57] <robin_sz> the pro way is these little "push down" valves .. to as you press the piece down onto the table, it activates the vacuum flow
[22:40:01] <robin_sz> for that zone only
[22:40:11] <robin_sz> like a ballbearing in a tube sort of thing
[22:40:44] <Jymmm> Yeah, I saw that too.
[22:40:53] <Jymmm> Do you know what a fooz ball table is?
[22:40:58] <Jymmm> (sp)
[22:41:04] <Jymmm> like air hockey table
[22:41:11] <robin_sz> yeah
[22:41:20] <robin_sz> that wouldnt work
[22:41:33] <Jymmm> I was thinking like that, but vacuum instead, covering on needed holes
[22:41:40] <Jymmm> unneeded
[22:41:45] <robin_sz> well yeah
[22:41:49] <robin_sz> but thats lots of holes
[22:41:58] <robin_sz> you only need one hole per part
[22:42:21] <robin_sz> so say 3 holes across, 5 holes deep spread over the entire table woudl do it
[22:42:25] <Jymmm> but if I cut-out small parts, I dont want them moving either
[22:42:55] <robin_sz> vac clamp aint real good on small parts
[22:43:14] <Jymmm> I'm thinking better than a physical clamp
[22:43:20] <robin_sz> say you get 0.5 bar
[22:43:36] <robin_sz> you need minimum say 6 sq inches
[22:43:42] <robin_sz> for a decent clamp action
[22:43:48] <robin_sz> 3" x 2"
[22:43:50] <robin_sz> minimum
[22:43:56] <Jymmm> (oh, and the vac wouldn't be 100% to the vac table, 1/3 would be for dust collection
[22:44:06] <Jymmm> )
[22:44:18] <robin_sz> I thought we'd alread covered not using a shop vac?
[22:44:41] <robin_sz> you need around 0.5 bar ...
[22:45:09] <robin_sz> shop vac wont do it if you have some flow
[22:45:33] <robin_sz> you'll need a real vac pump probably
[22:45:36] <Jymmm> 6hp w/ 2.5" opening?
[22:45:54] <robin_sz> might be OK
[22:46:09] <Jymmm> vac has warranty on it
[22:46:11] <robin_sz> whats wtong with using a proper vac pump?
[22:46:35] <Jymmm> cost primarily, but also dust getting into it
[22:46:46] <robin_sz> you have to use a dust filter, yeah
[22:46:52] <robin_sz> but they are cheap on eBay :)
[22:47:03] <robin_sz> ... wait, I bought one not long ago ..
[22:47:33] <Jymmm> and a water remover thingy (condensor) ?
[22:47:48] <robin_sz> http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=7521620557
[22:47:53] <robin_sz> see the price?
[22:48:14] <robin_sz> nah, condesors only needed on compressors to dry the air
[22:50:35] <robin_sz> I run dryers on the compressors, proper refrigerant dryers
[22:50:41] <robin_sz> work a treat
[22:50:57] <robin_sz> keeps all the crap out of the air systems
[22:54:01] <Jymmm> http://search.ebay.com/vacuum-pump_W0QQfsopZ1
[22:58:58] <Jymmm> looks interesting ---> http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=7531256465&ssPageName=MERC_VI_RSCC_Pr4_PcY_BIN_Stores
[23:00:07] <Jacky^> evening
[23:06:16] <Yuga> any one have any idea what kind of motor is inside a router?
[23:07:27] <Jacky^> which router ?
[23:08:17] <Yuga> i am trying to do a search for a motor that can be used to drive the spindle in a cnc machine
[23:08:55] <Jacky^> mmhh.. no idea
[23:09:17] <Yuga> cause the only motor's i can find run at about 3000 rpm
[23:09:22] <Yuga> looking for something alot higher
[23:09:32] <Jacky^> I'm using a tradictional router B&D 600 w brushes motor
[23:09:47] <Jacky^> 30000 rpm
[23:09:54] <Jacky^> not 3000
[23:10:05] <Yuga> ya... as i said.. 3k is far to slow
[23:10:18] <Jacky^> yeah..
[23:10:36] <Yuga> need atleast 12ooo
[23:10:46] <Jacky^> I think so
[23:12:55] <Jacky^> already tried sherline website ?
[23:13:17] <Yuga> u know the addy?
[23:13:24] <Yuga> i just started searching
[23:13:44] <Jacky^> i'm not sure
[23:14:00] <Jacky^> but they have nice parts for cnc and mill machine
[23:15:01] <Jacky^> try here: http://www.sherline.com/accesspg.htm
[23:15:10] <Jymmm> porter cable router is 28000 RPM
[23:15:32] <Jacky^> hi Jymmm
[23:15:37] <Jymmm> hola Jacky^
[23:16:38] <Jymmm> http://www.porter-cable.com/index.asp?e=547&p=2813
[23:16:52] <Phydbleep> * Phydbleep wanders back from science hell for a few minutes..
[23:16:52] <Jacky^> the mine produces a deafening noise :(
[23:17:05] <Jacky^> hey Phydbleep !!
[23:17:11] <Jymmm> Phydbleep science hell? would that be theology?
[23:17:12] <Phydbleep> Hi Jacky^ :)
[23:17:14] <Jacky^> :D
[23:17:26] <Phydbleep> Close.. Fluid Dynamics..
[23:17:48] <Jymmm> Phydbleep that aint nuttin, try thermo dynamics =)
[23:18:32] <Phydbleep> Jymmm: The guy I'm building the equipment for/with just had a paper published in "Nature".
[23:18:48] <Yuga> any one know of any other motor i could use for a cnc machine?
[23:18:57] <Jymmm> Phydbleep eeeesh, kick hi to the curb!
[23:19:03] <Phydbleep> Yuga: Air Spindle?
[23:19:06] <Jymmm> Yuga yeah, a porter cable router
[23:19:20] <Jymmm> s/hi/him/
[23:19:23] <Yuga> Phydbleep... that just sounds expencive :)
[23:19:47] <Jacky^> Air spindle should be coool :P
[23:20:01] <robin_sz> Yuga: why not just use a router huh?
[23:20:10] <Yuga> was looking at some... 2ooo $
[23:20:15] <robin_sz> nah
[23:20:21] <robin_sz> try a dewalt 620
[23:20:22] <Jacky^> O_O
[23:20:28] <Yuga> robin_sz... i am just looking at what's out there
[23:20:33] <robin_sz> 3hp, 24000 rpm
[23:20:35] <Jacky^> 2000 $ ??? crazy ?
[23:20:39] <Yuga> air spindle = 2k
[23:20:43] <robin_sz> but fscking noisy :)
[23:21:11] <Jymmm> makita are suppose to the be quietest
[23:21:13] <Jacky^> np with a box :D
[23:21:20] <robin_sz> your options are DeWalt for amateur use
[23:21:28] <robin_sz> or Perske for pro use
[23:22:10] <Jymmm> or craftsman with 2yr instant replacement warranty =)
[23:22:19] <Yuga> i wish these ppl would put pricing on there sites
[23:23:16] <Phydbleep> Yuga: Zaire?.. Got not a clue where to get one there..
[23:23:49] <Phydbleep> Yuga: http://www.harborfreight.com/cpi/ctaf/Displayitem.taf?itemnumber=47869 is what I was looking at for a pcboard mill.
[23:24:17] <Yuga> Phydbleep... from south africa
[23:25:38] <Yuga> http://www.harborfreight.com/cpi/ctaf/Displayitem.taf?itemnumber=47869 <--- nice... but i need it to cut 18mm ply wood
[23:25:43] <Phydbleep> Yuga: What about modifying something like this? http://www.harborfreight.com/cpi/ctaf/Displayitem.taf?itemnumber=44716
[23:27:03] <Yuga> u think that would have enough behind it to cut 18mm ply?
[23:27:04] <Jacky^> Phydbleep: :P
[23:27:31] <Yuga> 1/3 HP <--- doesnt sound promising
[23:27:44] <Jacky^> 1/4 mean 6 mm ?
[23:27:51] <Jacky^> no eh ?
[23:28:28] <Yuga> what?
[23:28:33] <Phydbleep> Yuga: It would be a little slow.. [IDEA] How much of a machine shop do you have?
[23:28:50] <Phydbleep> Jacky^: 6.something.
[23:29:13] <Jacky^> 6.3 if I remember well..
[23:29:39] <Jacky^> I couldnt use my actual tools :\
[23:30:10] <Phydbleep> * Phydbleep notices that the child is avidly watching the tv and considers a run though the shower....
[23:30:39] <Jymmm> Phydbleep : RUN! RUN AND TAKE A SHOWER WHILE ITS STILL DAFE! RUN!
[23:31:10] <Phydbleep> Actually this will be on for another 10 minutes, so I could walk. :)
[23:31:16] <Jymmm> * Jymmm waits for the water to run and the knock at the bathroom door!
[23:31:18] <Phydbleep> BBIAF. :)
[23:32:29] <Jymmm> http://www.studiocreations.com/howto/vacuumtable/index.html
[23:35:24] <fenn> Jymmm: dust collection: http://www.shopcamrouters.com/advantage_gallery.htm
[23:35:41] <fenn> also click on vacuum ready table to see what robin was talking about
[23:38:10] <Jymmm> Ok, I see the grid on the table, and the hole. the part I dont get is what is going to keep the vacumm from escaping?
[23:38:22] <fenn> you lay silicone tube in the grid lines
[23:38:33] <robin_sz> Yuga: get a DeWalt DW620K
[23:40:20] <robin_sz> sor DW626
[23:42:13] <robin_sz> the DeWalt routers have an electronic speedcontrol
[23:42:19] <robin_sz> plus feedback from the motor
[23:42:29] <fenn> oooo
[23:42:34] <robin_sz> so they give more power as the load comes on
[23:42:37] <fenn> does it have an index pulse?
[23:42:42] <fenn> ;)
[23:42:46] <robin_sz> heh
[23:42:58] <fenn> power drawbar?
[23:43:03] <robin_sz> nah
[23:43:14] <robin_sz> try a perske for that
[23:43:26] <robin_sz> did Les ever get a proper spindle?
[23:43:57] <Yuga> what was les using?
[23:44:11] <robin_sz> big porter cabel or some such
[23:44:31] <robin_sz> not powerfu enough
[23:44:44] <robin_sz> needed 5 to 10 hp really
[23:45:17] <robin_sz> whats he using to control his machine these days?
[23:45:47] <fenn> he hasn't been around since he got that $20k consulting contract
[23:45:53] <robin_sz> ahh
[23:45:55] <fenn> the piezo-acoustic master blaster
[23:46:06] <robin_sz> right
[23:46:16] <robin_sz> probably gone blind and/or deaf
[23:46:24] <fenn> set his hair on fire from across the room :)
[23:46:29] <robin_sz> heh
[23:46:43] <robin_sz> shold try my powder gun ...
[23:46:51] <robin_sz> 100Kv on the end of it
[23:46:59] <Jacky^> :)
[23:47:13] <robin_sz> and, yes, it does hurt
[23:50:06] <Jacky^> this afternoon I build an HW interfaces for parport (for a frined) to control 8 relay
[23:50:21] <Jacky^> i found a small program written in C lptout
[23:50:55] <Jacky^> I've an issue, when set high a pin all others go low
[23:51:04] <robin_sz> no kidding
[23:51:06] <Jacky^> maybe this is normal
[23:51:16] <robin_sz> no, just bad programming :)
[23:51:30] <Jymmm> robin_sz : Quit putting your tounge on the powder gun!
[23:51:37] <Jacky^> do you know some app for Linux ?
[23:51:40] <robin_sz> so .. to set a pin high
[23:51:53] <robin_sz> say, bit 2
[23:52:15] <robin_sz> you write 00000100 to the port , yeah?
[23:52:33] <robin_sz> now you see why they rst go low?
[23:52:54] <Jacky^> I don't know what it write
[23:53:12] <Jacky^> here's the url : http://www.epanorama.net/circuits/parallel_output.html
[23:53:24] <Jacky^> and the program is lptout
[23:53:30] <fenn> can't you just echo 0x0000002 > /dev/lpt0
[23:53:31] <Jacky^> I compiled from source code
[23:53:54] <Jacky^> fenn: never tried
[23:54:02] <Jacky^> I can try now.. a moment
[23:54:24] <robin_sz> fenn: he needs to read the current port state then OR it with whatever he want to set high etc
[23:54:59] <robin_sz> otherwise it resets the bits thta were hight before
[23:55:37] <Jacky^> I want mean: if relay 1 is on, and I do command to set on pin2, then pin 2 go high but pin 1 go low :\
[23:56:40] <Jacky^> yeah..
[23:56:59] <Jacky^> I use realy 1 to turn on a light at the 6:00 am
[23:57:10] <Jacky^> with cron
[23:57:40] <fenn> robin_sz: the problem with that is you can't turn off any pins
[23:58:11] <Phydbleep> Jacky^: You need to write a '3' to the port in that case or use a bitwise function to check/set the port state.
[23:58:34] <Jacky^> right
[23:58:50] <Yuga> last time i had a interface like that it worked like this... send 00000000 switches them all off... send 00000001 switches relay0 on... send 00000011 switches 0 and 1 on... send 00000101 switches on relay 0 and 2 and turn's relay 1 off
[23:58:51] <Jacky^> I would like to find the way to read the parport state
[23:58:56] <Jacky^> before write