#linuxcnc | Logs for 2012-03-10

[01:41:55] <ssi> well, I was successful in letting some of the smoke out of my lathe :D
[01:42:25] * Jymmm notes to NEVER let ssi touch ANYTHING.
[01:42:48] <ssi> it was a controlled smoke-letting
[01:42:50] <ssi> anticipated :)
[01:43:06] <Jymmm> NEVER EVER
[01:44:08] <ssi> no great loss :D
[01:44:32] <Jymmm> heh
[02:08:34] <DJ9DJ> moin
[03:01:40] <mrsun> hmm this is strange
[03:02:29] <mrsun> when moving positive on my X axis i get exactly 1mm if i set linuxcnc to go 1mm, moving backwards, first step i get exactly 1mm, second time i get 0.95mm, next im back at the 0 mark (so it moves 1.05mm aparently) ... then it goes over again, this is ONLY in the negative direction
[03:02:32] <mrsun> wth is up with that? :/
[03:02:41] <mrsun> ive got 1/8 microstepping if im not mistaking
[03:03:08] <mrsun> that calculates to 0.00125mm/step so it cant be that it just craps on one step its a buttload of stepps it has to not do for that to happend ...
[03:06:27] <mrsun> have to go, but if anyone feels like trying to answer it ill be back later today =)
[03:06:53] <archivist> lead screw and backlash
[03:13:18] <Mjolinor> any heekscad help here?
[03:13:29] <Mjolinor> http://www.youtube.com/watch?v=wThpU-XJ19o
[03:13:35] <Mjolinor> that's my starting point
[03:13:41] <Mjolinor> http://homepage.ntlworld.com/dknpower/clock.png
[03:13:44] <Mjolinor> thats my confusion
[03:14:26] <Mjolinor> as the letters are filled in when extruded I have to subtract them with the "cut one solid form the other"
[03:14:38] <Mjolinor> that works fine on the 9 but not on the 0 of the 10
[03:14:54] <Mjolinor> and why has hte 5 extruded as a shell and not a solid?
[03:17:53] <archivist> the 5 probably not a joined polygon
[03:18:09] <Mjolinor> ok
[03:18:17] <Mjolinor> it shouldl be I think
[03:20:22] <Mjolinor> it looks like it is, how would I check?
[03:22:14] <Mjolinor> could take a while comparing the start and end points of all the lines :o
[03:23:17] <archivist> zoom in on the 5 and move around till you see a slit
[03:23:40] <Mjolinor> done that cant see one
[03:31:12] <Mjolinor> nope, zoomed into the maximum on every corner adn no discontinuities
[03:31:24] <Mjolinor> unless it is in the middle of a straight line but I cant see it
[03:31:45] <cncbasher> did u draw as a dxf ?
[03:32:37] <cncbasher> send it over let's take a look
[03:33:39] <cncbasher> check for other lines on the same layer too
[06:34:01] <SadMan> in emcrsh.cc
[06:34:03] <SadMan> const char *pToolOffsetStr = "TOOL_OFFSET %d";
[06:34:10] <SadMan> shouldn't this be %f?
[06:34:17] <SadMan> since it's returning tool z offset
[06:35:44] <awallin> or is it the tool number?
[06:36:45] <SadMan> sprintf(context->outBuf, pToolOffsetStr, emcStatus->task.toolOffset.tran.x, emcStatus->task.toolOffset.tran.y, emcStatus->task.toolOffset.tran.z);
[06:36:55] <SadMan> oops, that's my modified version
[06:37:03] <SadMan> there was only .z before
[06:37:50] <SadMan> sprintf(context->outBuf, pToolOffsetStr, emcStatus->task.toolOffset.tran.z);
[06:39:49] <fragalot> 13:21 <slightlymad> pay rise?
[06:39:49] <fragalot> 13:21 <slightlymad> pay rise?
[07:45:58] <Jymmm> This is so cute, that I can't even come up with a caption for it... http://i41.tinypic.com/2ykaqo1.jpg
[08:05:27] <fragalot> Jymmm: sad panda is a bunny?
[08:06:56] <archivist> a small meal I suppose
[09:07:05] <A2Sheds> whats the lowest cost power feed for a manual bridgeport?
[09:10:14] <jthornton> a milk shake can power mine for a while till I get tired
[09:13:54] <A2Sheds> jthornton, do you feEl like standing around someones garage for a few years? I'm pretty sure they can supply the milkshakes
[09:14:27] <jthornton> too busy standing around in my shop :)
[09:14:32] <A2Sheds> heh
[09:15:09] <jthornton> my guess is a used but good one would be the lowest cost
[09:15:42] <A2Sheds> I have an old Cincinnati vertical mill for sale, somebody asked about a power feed for the table
[09:16:38] <jthornton> Enco, Griz and other chinese importers would have the cheapest ones
[09:17:28] <A2Sheds> a shop near me was selling those, 75% came back for warranty issues
[09:17:50] <jthornton> the other 25% were shot on sight?
[09:17:57] <A2Sheds> hehe
[09:18:34] * jthornton heads back out to the shop
[09:33:02] <ssi> JT-Shop: in the shop yet? :D
[09:33:20] <JT-Shop> yep, draining the plasma tank :)
[09:33:35] <ssi> I played the power game last night
[09:33:47] <ssi> I was hesitant to use the VFD, so I tried to power it up using a static
[09:33:49] <JT-Shop> who won?
[09:33:55] <ssi> mostly the lathe
[09:34:02] <ssi> the static wouldn't kick on
[09:34:19] <ssi> so I grabbed a little 1hp 3ph motor that I have and tried to make a rotary converter
[09:34:27] <ssi> got that working
[09:34:33] <JT-Shop> cool
[09:34:46] <ssi> flip the breaker, motor comes on, turn on the master on the lathe, and I get a red light on the control, and nothing else
[09:34:51] <ssi> plus... smoke from a filter :D
[09:34:55] <ssi> even the rotary did it
[09:35:20] <ssi> meanwhile the static was on the wall clackin away sounding all unhappy
[09:35:26] <ssi> so I shut it back down and hooked it up with the VFD
[09:35:50] <ssi> same thing... only this time the filter that was smoking actually caught on shitting fire
[09:36:05] <ssi> so I removed all the filters out of the power enclosure
[09:36:14] <ssi> and realized that the interface encloseure was open, and there's an interlock
[09:36:17] <ssi> so I closed that and tried again
[09:36:21] <ssi> this time I got much more
[09:36:26] <JT-Shop> I did the same after smoking one or two
[09:36:39] <ssi> more lights on the control, control fans spinning
[09:36:44] <JT-Shop> cool
[09:36:46] <ssi> now it just sits there and blinks "COLLET OPEN" at me
[09:36:55] <ssi> I'm guessing it won't budge until I have air attached
[09:36:59] <JT-Shop> blink back
[09:37:18] <JT-Shop> yea, no air, no coolant, no no no and you don't run
[09:37:26] <ssi> coolant too?
[09:37:28] <ssi> how do it know? :(
[09:37:48] <JT-Shop> mine has a float switch in the coolant tank, and the oiler and and and
[09:37:54] <ssi> bluhhhh
[09:38:00] <ssi> what do you run for coolant in yours
[09:38:44] <JT-Shop> Valcool VPTech
[09:39:12] <ssi> oil based?
[09:39:40] <JT-Shop> water soluble looks like blue toilet water when fresh
[09:39:47] <ssi> ah ok
[09:39:59] <JT-Shop> only bad thing is it doesn't taste like beer
[09:40:04] <ssi> I was hoping to use straight oil based coolant,
[09:40:09] <ssi> but because of the capacity and the price
[09:40:12] <ssi> I may end up reneging on that
[09:40:25] <JT-Shop> I think cradek uses neat oil in his
[09:40:29] <ssi> neat oil?
[09:40:32] <ssi> is that an actual name?
[09:40:36] <ssi> or just a descriptive adjective :D
[09:40:45] <JT-Shop> you don't cut it with anything
[09:40:53] <ssi> Neatsfoot oil is a yellow oil rendered and purified from the shin bones and feet (but not the hooves) of cattle
[09:41:06] <JT-Shop> not the same thing lol
[09:41:09] <ssi> teheheheh
[09:41:20] <ssi> Neat cutting oils are fluids usually based on mineral oils and used for cutting without further dilution i.e. as supplied by the manufacturer
[09:41:32] <JT-Shop> so you just drip it onto the part as you cut instead of flooding
[09:41:47] <ssi> what do you usually cut oils with?
[09:42:03] <ssi> I use mobilmet out of a hand bottle, and I really like the stuff
[09:42:24] <JT-Shop> is it straight from the bottle?
[09:42:40] <ssi> the way I've been using it, yes
[09:42:44] <ssi> I put it in a little hand oil can
[09:42:48] <ssi> and squirt it directly on my parts
[09:42:58] <ssi> but it's pretty viscous for flood coolant
[09:44:19] <ssi> I mostly don't want water soluble coolant because I don't like the way it rots
[09:44:21] <JT-Shop> which mobilmet do you use
[09:44:22] <ssi> heh
[09:44:37] <ssi> I'll have to go check
[09:44:51] <JT-Shop> I see a bunch to choose from...
[09:46:07] <ssi> 426
[09:48:08] <JT-Shop> I think I'll get a gallon for the BP knee mill
[09:48:21] <ssi> I've been pretty happy with it so far
[09:48:25] <ssi> makes parting much easier
[09:49:31] <JT-Shop> cool, parting is a pain on the old Samson manual lathe
[09:49:43] <JT-Shop> I need a scatter shield for it...
[09:51:37] <JT-Shop> wonder if something like this http://www.mcmaster.com/#squirt-bottles/=glpxka would be better than a cheap leaking oil can
[09:51:53] <ssi> ok so...
[09:51:57] <ssi> oh jeez
[09:52:03] <JT-Shop> wow
[09:52:15] <ssi> yea that'd be pretty good
[09:52:24] <ssi> also
[09:52:25] <ssi> http://www.mcmaster.com/#mobilmet-oil/=glpyd8
[09:52:29] <ssi> that's why I have 426
[09:52:33] <ssi> because it's what mcmaster carries :D
[09:52:50] <JT-Shop> I just ordered it :)
[09:53:07] <ssi> 55 gal drum of it is $1020
[09:53:17] <ssi> :(
[09:53:21] <ssi> your lathe hold 9gal like mine?
[09:53:44] <JT-Shop> 30-35 gallons
[09:54:37] <JT-Shop> 30 gallons, just looked
[09:56:30] <ssi> holy crap
[09:57:04] <ssi> hm I wish I knew which oil cradek was using
[09:57:27] <JT-Shop> he told me once but I could not find it anywhere
[09:57:53] <JT-Shop> but I'm sure if we keep calling cradek he will pop in and tell you
[09:59:01] * JT-Shop tries to remember the second most important thing to do today
[10:06:51] <ssi> if you say his name three times, he appears?
[10:06:55] <ssi> cradek cradek cradek
[10:08:06] <ssi> btw the backside off all the boards in this GE control is freakin WIRE WRAPPED
[10:08:15] <ssi> http://a2.sphotos.ak.fbcdn.net/hphotos-ak-ash4/431058_808115768072_71107655_35459254_823586676_n.jpg
[10:08:19] <ssi> terrifying
[10:09:36] <JT-Shop> wow
[10:10:17] <JT-Shop> I think that only works when you call Peter 3 times
[10:10:32] <ssi> mesa peter?
[10:10:38] <JT-Shop> yea
[10:10:41] <ssi> pcw pcw pcw
[10:11:22] <ssi> I bought some barstock to make extension holders with
[10:11:27] <ssi> not too terrible spendy
[10:12:03] <ssi> know of a good source for t-bolts for those, or will I have to make them too?
[10:12:21] <ssi> mcmaster to the rescue, eh
[10:12:22] <JT-Shop> only source I've seen is Hardinge
[10:12:38] <JT-Shop> I've not found them anywhere and gave up looking
[10:12:38] <ssi> http://www.mcmaster.com/#square-head-tooling-component-t-slot-bolts/=glq7qu
[10:12:44] <ssi> dunno if those'll work
[10:13:28] <JT-Shop> didn't see them before
[10:15:34] <JT-Shop> do you have any T bolts to copy from?
[10:17:22] <JT-Shop> 91622A116 might work
[10:17:48] <ssi> I have a couple holders coming that'll have t bolts
[10:17:57] <ssi> I think all the holders I have now are C10 style and have the integral T
[10:29:08] <joe9> with the latency test, the max jitter (servo thread) is 7404 ns and the base thread is 7482 ns. Is that within limits?
[10:29:16] <joe9> alex4nder: any thoughts, please?
[10:29:28] <joe9> just checking out linuxcnc on a new pc for the first time.
[10:30:03] <JT-Shop> there are no limits per say, but that is excellent if you have let it run for a few hours
[10:30:22] <joe9> no, that was just for 5 mins or so. will let it run for longer.
[11:02:12] <joe9> i have the ubuntu live cd, but it dose not recognise the raid partititons. I cannot seem to find the mdadm executable in /sbin or /bin.
[11:02:25] <joe9> linuxcnc ubuntu live cd, I mean.
[11:02:44] <joe9> sudo which mdadm does not return anything
[11:02:58] <joe9> aptitude install mdadm says that the package is already installed.
[11:03:11] <ssi> just a path issue then?
[11:03:16] <ssi> try find / -name mdadm
[11:03:19] <ssi> will take awhile
[11:03:25] <ssi> or find /usr -name mdadm
[11:03:48] <joe9> ok, thanks.
[11:33:09] <psha> joe9: mdadm is in sbin
[11:33:11] <psha> not in bin
[11:33:24] <ssi> that explains that :D
[11:33:25] <psha> usually /sbin/mdadm
[11:33:53] <Mjolinor> is there a "usually" I generally find it pretty random :)
[11:34:06] <Mjolinor> it is always in the last palce you look that's for sure
[11:36:21] <ssi> /sbin, /usr/sbin, etc are typically binaries that only root is expected to ever use
[11:36:30] <ssi> so only root typically has them in path
[11:36:56] <ssi> if you're the kind of user that likes to do everything with sudo, you might consider putting them in path
[11:39:00] <joe9> in my case, I have a non-working installation on the disks (raid1). I do not know if aptitude looks at that to see if mdadm is installed.
[11:39:06] <joe9> but, I do not see mdadm binary in /
[11:39:54] <joe9> "a volume with software packages has been detected" it says, when I start using the livecd.
[11:40:14] <joe9> is it common? is it referring to the livecd volume or the volume in the disks.
[11:40:50] <joe9> when I try to partition the disks, it lists the "ext4, ext3 .. " filesystem, but not a raid-1 partition there.
[11:43:00] <psha> joe9: raid1 just looks like ordinary partition
[11:43:07] <psha> but with mdadm superblock in the end
[11:43:34] <joe9> oh, ok. but, if I partition the disk as ext4, it will not be a raid-1 disk anymore. correct?
[11:43:57] <joe9> psha: the raid-1 disks show up as "unknown filesystem" but, with the flags "boot, raid" setup
[11:45:24] <psha> it depends on your luck :)
[11:45:32] <psha> probably it won't kill superblock in the end
[12:03:27] <hatch789> hey guys, I'm just using my X&Y axis right now but my g-code has some Z stuff in it. Is there an easy way (a command or something?) to ignore the Z axis follow errors?
[12:04:29] <jthornton> nope
[12:14:15] <hatch789> so what do I do then with my g-code? somehow remove all z commands?
[12:18:09] <jthornton> yea, or change your configuration
[12:34:37] <Mjolinor> http://www.youtube.com/watch?v=aMqM13EUSKw
[12:34:41] <Mjolinor> is that for real?
[12:55:42] <psha> Mjolinor: deformations looks real
[12:56:33] <psha> but i don't know if golf ball may survive so serious deformations without breaking
[13:22:38] <jthornton> this one is real http://www.youtube.com/watch?v=00I2uXDxbaE&feature=related
[13:36:42] <DJ9DJ> re-namd
[13:54:35] <Jymmm> 2" wide cloth tape other than duct tape?
[14:01:05] <fragalot> Jymmm: pattex power tape!
[14:01:06] <fragalot> :3
[14:01:15] <Jymmm> ?
[14:01:52] <fragalot> cloth tape other than duct tape
[14:02:07] <Jymmm> what is pattex
[14:03:49] <fragalot> brand
[14:03:54] <fragalot> makes glue & stuff
[14:11:01] <Jymmm> where do you usually find it?
[14:22:51] <Tecan> where do i set the /usr/src/linux-headers-3.0.0-13-lowlatency path ?
[14:23:06] <Tecan> configure: error: version.h not found - Is the kernel headers package installed ?
[14:28:09] <Tecan> in the configure i guess
[14:34:17] * JT-Shop loves reading questions that I have no clue as to what they are talking about :?
[14:46:01] <archivist> yet another doing it the hard way probably
[14:46:36] * archivist drinking coffee listening to the lathe screw cutting
[14:51:43] * djdelorie worries about his math...
[14:51:46] <gene77> Anybody home?
[14:52:05] <djdelorie> scope says 7 divs at 50 mV/div across a 5 mR current sense resistor
[14:52:26] <djdelorie> for about 5 mS
[14:52:45] <gene77> My A axis isn't running, need .hal help I think
[14:53:05] <djdelorie> am I really pushing 70 AMPS into the motor?
[14:54:55] <djdelorie> winding resistance is 5.6 R, at 60V I shouldn't be able to push more than 10 amps...
[14:56:28] <djdelorie> data logged from within the controller show a more reasonable 8 amps peak
[14:56:45] <JT-Shop> hi gene77
[14:56:59] <gene77> 10.7142857143 amps to be exact
[14:57:07] <gene77> hi, hal help?
[14:57:17] <JT-Shop> hi Hal
[14:57:35] <JT-Shop> what's up gene77
[14:57:50] <djdelorie> I'm thinking, it's triggering off just when I switch the drive transistors from "forward" to "active brake" and I'm reading back EMF
[14:58:24] <gene77> axis isn't moving, command its not getting thru the hal meter past the tp & enable signals
[14:58:43] <gene77> A axis isn't moving, command its not getting thru the hal meter past the tp & enable signals
[15:01:57] <JT-Shop> is it connected just like the rest of the axes?
[15:02:31] <gene77> I think so, and it was working a couple months ago
[15:03:05] <gene77> and I don't recall changing anything except the spindle stuff since
[15:03:38] <gene77> WHat keyboard keys are supposed to jog it?
[15:07:05] <gene77> section says [], what is the next step looking with hal meter?
[15:10:18] <JT-Shop> ok, so it worked then you changed something in your hal file and it broke?
[15:10:31] <JT-Shop> is it axis 4?
[15:11:27] <gene77> ISTR that is probably when, stepconfig got the direction logic wrong. No, its axis 3 in the hal meter menu
[15:12:45] <gene77> And the "[]" keys are being ignored now.
[15:13:17] <JT-Shop> stepper?
[15:13:42] <gene77> yes, motor is enabled and locked
[15:14:13] <JT-Shop> do you see any steps change on axis 3 stepgen in the watch window?
[15:14:18] <gene77> no
[15:15:51] <JT-Shop> does the A axis show up on the DRO?
[15:16:06] <JT-Shop> assuming your using the Axis GUI
[15:16:07] <gene77> yes
[15:16:13] <gene77> yes
[15:16:40] <JT-Shop> what happens when you do a MDI command for the A axis
[15:17:23] <archivist> gene77, jog is [ and ] iirc
[15:17:59] <gene77> USRMOT: ERROR: invalid command
[15:18:01] <gene77> Linear move in MDI would exceed joint 3's positive limit
[15:18:12] <gene77> wtH?
[15:18:30] <gene77> lemme recheck the .ini!
[15:20:11] <gene77> its spec'd as angular
[15:20:29] <JT-Shop> yea, something is not quite right
[15:21:07] <JT-Shop> what is ISTR?
[15:21:29] <gene77> with min and maxlimits=0, does that not mean continuous?
[15:22:16] <gene77> I Seem To Recall John
[15:22:27] <gene77> :)
[15:30:17] <gene77> I just tried the MDI g0a-10, and got the same msg, negative limit
[15:32:28] <gene77> so apparently having the limits set at 0,0 is a no-no?
[15:43:00] <djdelorie> hmmm... what is an average "fast" inches/sec for a cnc cutter?
[15:43:27] <djdelorie> check my math: 100 oz-in torque driving a 3/8-16 screw, pushes 314 lbs ?
[15:46:19] <gene77> for a ball screw maybe
[15:47:15] <djdelorie> I mean, without considering friction. Just want to make sure the ratios aren't backwards or my math is missing a step
[15:49:02] <gene77> my math isn't as good as yours DJ. With a 425 on a 10 tpi acme, and a 17/42 gear down, I can hit 155 lbs on my z axis when the motor is tapped out
[15:49:44] <gene77> lots of friction in the acme
[15:50:01] <djdelorie> gear down increases torque to 1050, yes?
[15:50:50] <djdelorie> is that 425 oz-in?
[15:51:03] <djdelorie> and I think the diameter of the acme screw needs to be known too...
[15:52:17] <gene77> yes, but may not be getting full current, its an 8 wire motor, wired in series, and getting about 2.34 a phase, says 5 amps running unipolar
[15:52:20] <JT-Shop> gene77: IIRC for angular set the limits to some insane value for + and -
[15:52:52] <mrsun> archivist, but in one direction it works fine, 4 steps in one direction, each is exactly at 0, 4 steps in theo ther direction first is exactly spot on (have backlash compensation) then next is 0.95, next is 1.05, next is 0.95 .. all in the same direction, i do not change direction at any time
[15:54:03] <djdelorie> my screw rod is "local hardware store" so I probably have even more friction :-)
[15:54:05] <JT-Shop> djdelorie: are you calculating stepper torque?
[15:54:13] <archivist> mrsun, drunk thread on the screw
[15:54:25] <djdelorie> at the moment, I'm trying to figure out a realistic limit to winding current for my firmware
[15:54:29] <mrsun> archivist, heh ? :P
[15:54:30] <gene77> I was told that a 0 disables that, and its been zero zero for a long time John, years even. This however is the master-rt branch 2.60.something
[15:54:33] <JT-Shop> LOL
[15:54:38] <gene77> chuckle
[15:55:02] <JT-Shop> yea, I may be full of shit about that and not know it :/
[15:55:02] <archivist> mrsun, technical term for a bad helix on a thread
[15:55:08] <djdelorie> I mean, if I run all three motors at "peak current" at the same time, I'd need a 4 KWatt power supply...
[15:55:10] <Jymmm> http://i44.tinypic.com/4keova.jpg
[15:55:22] <mrsun> archivist, but shouldnt that show up in both directions?
[15:55:27] <djdelorie> ...but that's way overkill for the *actual* power needs of a small cnc table.
[15:56:15] <JT-Shop> so just for shits and grins put a number in your limits and see if your A takes off
[15:56:16] <archivist> mrsun, I would expect so but depends on the error
[15:56:36] <mrsun> i was more thinking if its due to linuxcnc skipping some steps cause its "close enough" =)
[15:56:45] <djdelorie> I have 2 amps available, if I limit to 0.6 amps per motor, that's (in theory) still 30 oz-in per motor. Or I could limit to 2 amps per motor, and monitor the power supply volts as well
[15:56:57] <archivist> mrsun, that does not happen
[15:57:07] <mrsun> archivist, ok good i got that sorted atleast =)
[15:57:11] <gene77> that reminds me of a rancher south of Rapid City, called up the wind cave rangers and told them to come and get their 8 buffalo that were demolishing his haystacks.
[15:57:51] <gene77> He did that for a week, but finally said to come and get 7. They were there an hour later.
[15:58:43] <JT-Shop> arggg, there is nothing in the manual about setting limits to 0 for an angular axis
[15:58:56] <archivist> I just did my first cnc lathe internal thread, about time too one might say
[15:59:26] <djdelorie> where do you put the limit switch on a mobius strip ?
[15:59:26] <JT-Shop> single point thread or tap?
[15:59:36] <archivist> single point
[15:59:40] <JT-Shop> cool
[16:00:21] <archivist> dont adjust motor speed while threading..something missed a beat
[16:01:00] <JT-Shop> I don't touch anything while threading :)
[16:03:28] <gene77> and of course that linuxcnc shutdown crashed the box, requiring a power cycle, but yes John, that did indeed fix it
[16:05:17] <gene77> Now I need to go find some 1" 5/16 USS bolts, drill a couple of holes in a plastic bowl, set the table in it on edge, and fill it up with k1 for coolant. ;-)
[16:06:03] <DJ9DJ> gn8
[16:14:06] <JT-Shop> Gene I thought I remember Andy saying something about that on the forum a while back
[16:16:21] <gene77> there was a way to make a rotary axis continuous, once, maybe not anymore
[16:22:27] <JT-Shop> well setting it to wrapped rotary it goes 0 - 359.999 degrees
[16:23:16] <archivist> rotary does need some work to make it universally useful
[16:30:26] <djdelorie> archivist: I can imagine trying to "home" a lathe, and having it spin for minutes...
[16:31:56] <JT-Shop> ah sweet a loose wire
[16:32:14] <Tecan> why does hal have to be enabled ?
[16:33:39] <Tecan> i got a rt kernel without one for 11.04
[16:34:11] <Tecan> rtai is requiring it to compile the kernel modules
[16:39:50] <archivist> djdelorie, I have a slow rotary on the 5 axis and returning to the start point is "slow"
[16:40:35] <djdelorie> I meant, if it had to "unwind" a couple thousand rotations to "home" a rotary axis, that would be... less than useful.
[16:41:14] <archivist> currently a rotary axis can be like that
[16:41:26] <archivist> grmbl
[16:42:19] <gene77> grmbl is mild
[16:43:13] <archivist> now where are my bore gauges...even internal calipers
[17:20:34] <hatch789> what is the mdi command to zero the axis right where they are now?
[17:23:44] <GoSebGo> hatch789: i dont know off the top of my head, but i bet the answer is somewhere in this doc: http://www.linuxcnc.org/docs/2.5/html/gcode/coordinates.html
[17:24:55] <JT-Shop> hatch789: http://linuxcnc.org/docview/2.5/html/common/User_Concepts.html
[17:25:46] <JT-Shop> hatch789: do you wish to set the machine origin or an offset?
[17:34:40] <hatch789> just to zero X&Y right where it is. not home them ...already homed
[17:35:22] <cradek> typically you'd use the Touch Off function, but you can do it in mdi as well; check section 3.2 in the link from Seb
[17:37:11] <JT-Shop> cradek: did you see ssi asking what cutting oil you used?
[17:37:20] <cradek> no
[17:37:33] <cradek> the stuff I have in the lathe I don't think is available anymore
[17:37:40] <cradek> it's some soybean-based thing
[17:37:54] <JT-Shop> I never could find it when you told me what it was
[17:38:07] <Tom_itx> whale blubber
[17:38:09] <cradek> yeah I think they're gone
[17:38:18] <cradek> I can't remember the name of it
[17:38:52] <JT-Shop> I did find some soy oil based stuff but by that time I had all ready gone with ValCool
[17:39:14] <Tom_itx> maybe for food processing equipment?
[17:39:46] <cradek> it smells kind of like french fries
[17:39:54] <cradek> very inoffensive smell
[17:40:39] <JT-Shop> maybe I got dyslexic and connected the wires backwards from the plasma tip voltage... I guess I'll take it back apart again :/
[17:41:12] <JT-Shop> too bad the ValCool doesn't taste like beer...
[18:15:35] <jdhnc> too bad you know that.
[18:16:06] <JT-Shop> which one?
[18:16:48] <jdhnc> <JT-Shop> too bad the ValCool doesn't taste like beer...
[18:18:03] <JT-Shop> yea, it never fails if I open the window on the CHNC I get it in the face
[18:18:28] <djdelorie> BLEH BLEH BLEH thppt....
[18:19:28] <archivist> reminds one of syphoning petrol(gas to you over the pond) tanks
[18:20:15] <JT-Shop> they call it an Arkansas credit card
[18:21:07] <ssi> ooh cradek you're around?
[18:21:25] <ssi> cradek: JT said you were using straight oil coolant... what oil are you using?
[18:23:34] <JT-Shop> ssi: he said the company is gone
[18:24:29] <ssi> nerds
[18:24:53] <ssi> oh I see you asking him in the backscroll now
[18:25:28] <ssi> I have a gallon of koolmist concentrate... I might use it to mix up some water based stuff, at least long enough to get the machine to pretend to want to run anyway
[18:26:55] <JT-Shop> does yours have a coolant tank float switch?
[18:26:58] <ssi> no clue
[18:27:09] <ssi> I need to get air hooked up and see what it's gonna do
[18:28:12] <JT-Shop> fix one error at a time till it runs
[18:28:17] <ssi> yeah
[18:28:34] <ssi> I need to get down and see what all I'm lacking
[18:29:06] <ssi> btw, having a forklift is amazing
[18:29:08] <ssi> extreme bike repair:
[18:29:09] <ssi> http://sphotos.xx.fbcdn.net/hphotos-snc7/426109_808473680812_71107655_35460738_1170623857_n.jpg
[18:33:11] <JT-Shop> we have an electric one at the other shop
[18:33:48] <JT-Shop> here I have a mega lift gantry http://gnipsel.com/shop/gantry/gantry.xhtml
[18:34:46] <jdhnc> heh... I like the floor jack under the hoist
[18:58:02] <JT-Shop> that was just to get the chain undone...
[18:58:52] <JT-Shop> archivist: do you know of Roberts boilers?
[18:58:57] <FinboySlick> ssi: You need to do some weight reduction if you need a forklift to lift it ;)
[18:59:03] <JT-Shop> vs Ofeldt?
[19:09:11] <frysteev> anyone here use a control techniques FNC5?
[19:13:56] <Jymmm> School is scarry http://i41.tinypic.com/15s92s3.jpg
[21:27:06] <ssi> heheh
[21:37:14] * flyback bites ssi
[21:40:20] <ssi> ow!
[21:40:35] <ssi> those damn flybacks always bite me
[21:40:43] <ssi> I need to remember to discharge the caps before I stick my hands in there
[21:40:52] <flyback> hey
[21:40:59] <flyback> this 50w iron I got from sparkfun
[21:41:01] <flyback> variable temp
[21:41:06] <flyback> looks very very very good for $40
[21:41:29] <flyback> I got it to supplement my aoyue 968 because the 35w iron is too weak for large joints
[21:41:42] <flyback> and their $10 fixed temp 30w iron I got for a friend looks good too
[21:41:47] <ssi> yeah plus "aoyue" has entirely too few consonants
[21:41:47] <flyback> even has the screw on barrel type
[21:41:53] <flyback> ?
[21:42:01] <ssi> nothin
[21:42:06] <flyback> aoyue even realized the iron is weak they released the 968+
[21:42:09] <ssi> I have an aoyue air station
[21:42:09] <flyback> 70w iron now
[21:42:15] <flyback> no tlel me what's wrong with it
[21:42:18] <ssi> but I have a weller WES51 iron station
[21:42:23] <flyback> cause I want to compare
[21:42:44] <ssi> nothing's wrong with it, I just think it's a dumb brand name :)
[21:55:43] <ssi> anyone familiar with teco VFDs?
[22:20:00] <mikebronner> Hey guys, trying to get a new install of EMC2 running (based on the linuxcnc ISO for Ubuntu). We have the system installed, but the parallel port is not showing any voltages.
[22:20:28] <mikebronner> BIOS is configured for EPP+ECP
[22:21:03] <mikebronner> We tried manually disabling parallel port diver in ubuntu, and using the hal_parport driver, but it reports unknown symbol and crashes
[22:21:14] <mikebronner> any thoughts what may be going on here?
[22:23:03] <frysteev> yo
[22:23:11] <mikebronner> ASUS motherboard with integrated parallel port
[22:23:17] <frysteev> anyone have any control techniques fnc5 experience?
[22:27:31] <flyback> mikebronner: dunno but if it turns out you have a buggy superIO chip
[22:27:39] <flyback> youc an get pci and pci-e lpt cards pretty cheap on ebay
[22:39:08] <mikebronner> thanks flyback … funny turn of events: it appears for one my voltmeter is broke … i hope that's all it is ...
[22:41:10] <flyback> make sure you google the chip on the card before you find it
[22:41:16] <flyback> might sure they work well in linux etc
[22:41:20] <flyback> find/buy
[23:10:39] * flyback happy bday to me, STUPID CANUCKS!, STUPID CANUCKS
[23:51:23] <archivist> mikebronner, check if you need pull ups some are open collector