#emc | Logs for 2009-03-26

[00:03:37] <toastydeath> jymmmemc: it's a really big spindle taper, quick change
[00:06:54] <JymmmEMC> ah
[00:07:29] <toastydeath> just the taper part alone probably weighs 10 lbs
[00:07:50] <toastydeath> w/e
[00:32:19] <dmess> i have about 33 kg worth of tool changing capacity ..if the center of mass is coordinated
[00:44:28] <jepler> I continue to like the .010" stub endmill as an alternative to the vee mill for trace isolation milling. It only costs twice as much, and it seems to have made setting the depth half well less than half as finicky. The lifetime is shorter, 5000 linear inches vs 8000 liner inches, but I usually break a bit through error before it wears out..
[00:45:19] <jepler> s/liner/linear
[00:50:51] <dmess> turn it back 1 notch
[01:05:06] <skunkworks> cool - I like my thinktink bits
[01:34:22] <jmkasunich> pthbt
[01:34:30] <skunkworks> uh oh
[02:15:04] <cradek> hm, my nipple cover is wearing out
[02:15:15] <eric_unterhause1> TMI
[02:15:21] <cradek> I have new ones ... somewhere
[02:16:28] <skunkworks> I keep my nipple covers in the night stand
[02:16:45] <eric_unterhause1> you people scare me
[02:17:02] <skunkworks> and on that note - good night everyone.
[02:17:11] <cradek> night
[02:17:36] <dmess> i keep the ass gaskets on a shelf in the shitter
[02:18:02] <cradek> uh, which part of a laptop is the ass?
[02:18:14] <eric_unterhause1> what brand?
[02:18:19] <cradek> ibm
[02:18:27] <eric_unterhause1> how could you tell?
[02:18:44] <cradek> by the presence of the ass gasket?
[02:34:27] <|newbie|> hi all
[02:34:30] <|newbie|> |newbie| is now known as dareposte
[02:34:32] <dareposte> hi all
[02:34:42] <dareposte> i have a bit of an ignorant question
[02:35:04] <dareposte> on a cnc knee mill, I understand the quill is Z and the knee is U
[02:35:28] <dareposte> so is the quill supposed to be more accurate than the knee? or the other way around
[02:35:43] <dareposte> i don't see how the quill can have a high accuracy ballscrew in it on a 'converted' mill
[02:36:18] <eric_unterhause1> usually, the quill is the only driven axis in z
[02:36:22] <dareposte> i pulled my J-head apart and there's just a rack and pinion drive in there, not much to work with
[02:36:31] <eric_unterhause1> they don't use that
[02:36:38] <eric_unterhause1> usually
[02:36:52] <dareposte> what do they use then?
[02:36:58] <dareposte> some better design no doubt
[02:37:00] <eric_unterhause1> a ballscrew
[02:37:14] <eric_unterhause1> at least in the design that will get you sued
[02:37:42] <dareposte> why would it get me sued
[02:37:50] <eric_unterhause1> sue happy inventors
[02:38:14] <eric_unterhause1> the name is escaping me right now, starts with an e
[02:38:50] <dareposte> so my mill has just a rack and pinion head on it, doesn't look too promising to find a way to reasonable convert it to a ballscrew
[02:39:24] <SWPadnos> the knee would be W, not U
[02:39:26] <eric_unterhause1> http://www.microkinetics.com/conv_kits/index.htm
[02:39:51] <SWPadnos> elrod?
[02:39:56] <eric_unterhause1> that's it
[02:40:04] <eric_unterhause1> he's sue happy
[02:41:03] <SWPadnos> except that Prototrak, Anilam, and others made quill drives that moved the quill by essentially sticking a pin in the hole that the depth indicator had occupied
[02:41:37] <dareposte> hm
[02:41:39] <SWPadnos> I think the Elrod thing is that he leaves access to the tramming bolts, which some other drives don't
[02:41:39] <eric_unterhause1> his patent involves not using the traming screws, brilliant invention
[02:41:47] <SWPadnos> right
[02:41:53] <dareposte> what is the tramming screw
[02:41:54] <eric_unterhause1> nobody could have thought of that
[02:42:17] <SWPadnos> depends on when he did it, and how complex it os
[02:42:19] <SWPadnos> is
[02:42:51] <dareposte> eric_unterhause1: so on the installed microkinetics kit, where does the ballscrew actually go? is it inside the head somewhere?
[02:42:51] <jepler> curse these unlabeled surface mount componentrs
[02:43:12] <eric_unterhause1> pretty sure it's bolted to the outside
[02:43:30] <SWPadnos> looks similar to the Anilam Z kit I have
[02:43:40] <eric_unterhause1> I saw the accurite one being installed, don't recall how it's done
[02:43:45] <SWPadnos> the drive and motor bolt on in place of the depth setting knob and indicator
[02:44:14] <dareposte> hm i already tore that off
[02:44:17] <SWPadnos> and there's a pin that sticks into the quill where the depth indicator used to be (since you take it out when you put the motor on)
[02:44:24] <SWPadnos> good, since you replace it :)
[02:44:47] <SWPadnos> I think the Anilam requires you to drill and tap a couple of holes on the head
[02:44:56] <eric_unterhause1> I have a series II, the ballscrew is built into the spindle
[02:45:02] <dareposte> no problem with that
[02:45:10] <dareposte> eric: was yours a conversion or did it come that way
[02:45:16] <eric_unterhause1> factory
[02:45:20] <SWPadnos> eric_unterhause1, yeah, and yours didn't start out as a manual machine either ...
[02:45:22] <dareposte> fancy
[02:45:57] <dareposte> so my depth stop assembly had only a single bolt holding it in
[02:45:57] <eric_unterhause1> I want the knee ballscrew too, but I haven't seen one for sale in a while
[02:46:21] <SWPadnos> yeah, I think you have to put another hole on the bottom flat surface
[02:47:09] <DanielFalck> I have another variation on driving the quill: my Bridgeport was retrofitted by Hurco in the 80's. The quill is moved up and down via the center of the spindle.
[02:47:26] <eric_unterhause1> and then Hurco sues you
[02:47:27] <DanielFalck> there are Bishop Wisecarver ways on top with a ballscrew in the middle
[02:47:46] <DanielFalck> the ballscrew pushes a drive rod that is connected to the spindle
[02:47:48] <eric_unterhause1> that sounds elaborate
[02:47:51] <DanielFalck> very
[02:48:00] <DanielFalck> luckily it was done when I got it
[02:48:19] <SWPadnos> sounds tall
[02:48:23] <DanielFalck> it is
[02:48:26] <SWPadnos> heh
[02:48:30] <eric_unterhause1> someday I'm going to figure out how to change the belt on my quill drive
[02:48:47] <SWPadnos> I just hope I never screw up my drawbar - I have to tilt the head to get it out
[02:48:51] <DanielFalck> someday I'm going to get a vmc :)
[02:49:42] <dareposte> SWPadnos: so on the microkinetics picture here: http://www.microkinetics.com/conv_kits/index.htm on the bridgeport quill kit, I see some machined block that is silver and must be what replaces the depth stop, but its hard to see how it attaches to the ball nut or the ball screw, or even which one it attaches to
[02:49:44] <dareposte> do you knwo?
[02:50:20] <SWPadnos> no, I can't quite tell on that kit
[02:50:28] <eric_unterhause1> I'm lucky I don't have a hole in the center of my quill for a drawbar, I'd have to tighten it from the next floor up
[02:50:44] <SWPadnos> but I can say that the right hand piece isn't in the correct orientation
[02:50:48] <SWPadnos> actually none of it is :)
[02:50:58] <SWPadnos> the ballscrew is vertical, covered by the rear black piece
[02:51:21] <SWPadnos> the complex piece on the right would be tipped so the obvious motor mount would be horizontal
[02:51:23] <dareposte> yeah i figured that
[02:51:30] <dareposte> yeah i see that too
[02:51:43] <dareposte> just hung up on whether the nut is stationary, or if the nut moves
[02:51:59] <SWPadnos> actually, it looks like the "front" part of the right hand piece - the part facing us - would mate with the depth stop area
[02:52:02] <SWPadnos> the nut moves
[02:52:09] <dareposte> the ball nut moves?
[02:52:28] <dareposte> or the depth stop nut looking thing
[02:52:30] <SWPadnos> the silver piece most likely connects to the ball nut
[02:52:31] <dareposte> (or both)
[02:52:38] <dareposte> i see
[02:52:56] <SWPadnos> and then a peg sticks out from that into the hole the depth stop used to stick into
[02:53:14] <SWPadnos> or something like that, assuming it's like mine :)
[02:53:15] <dareposte> i'm not sure what hole you're talking about
[02:53:37] <dareposte> my depth stop had a single bolt through it, and sort of sat in a square machined way area
[02:53:46] <SWPadnos> the ring that would move up and down with the quill, and which would push down on the depth setting nuts
[02:54:02] <SWPadnos> that ring moved because there was a peg stuck into the quill
[02:54:09] <dareposte> mine only had a bolt
[02:54:12] <dareposte> stuck into the quill
[02:54:18] <SWPadnos> ok, then that's the thing
[02:54:19] <dareposte> no peg
[02:54:25] <SWPadnos> ok, bolt then :)
[02:54:32] <dareposte> okay just checking to make sure i wasn't missing anything
[02:54:33] <SWPadnos> I think mine's a peg, but it could be a bolt too
[02:54:47] <SWPadnos> no, I'm sure you looked at yours much more recently than I have
[02:54:56] <dareposte> mine is apart on the garage floor right now
[02:54:58] <dareposte> :-D
[02:55:00] <SWPadnos> heh
[02:55:03] <ds3> not having a reliable G00 for long traverses is really irritating :(((
[02:55:09] <SWPadnos> mine is not apart on the garage floor right now
[02:55:21] <dareposte> mine is also a clone though
[02:55:28] <SWPadnos> oh. you suck
[02:55:32] <dareposte> so who knows what corner they might have cut
[02:55:40] <SWPadnos> err, I meant it could be different
[02:56:02] <dareposte> so far the bridgeport manual has been almost spot on for disassembly and parts, even wrench sizes
[02:56:11] <dareposte> so it seems my clone didn't mutate too much
[02:56:29] <SWPadnos> no, a lot of stuff is very very very close
[02:56:29] <dareposte> i did find a stripped auto-feed gear
[02:56:53] <SWPadnos> I bought an end bell (bearing mount) from a clone, and it fit perfectly once I popped out the roll pins
[02:57:03] <SWPadnos> (the BP doesn't use locating pins on those)
[02:57:09] <dareposte> cool
[02:57:13] <dareposte> good to know
[02:57:13] <SWPadnos> yep, my auto-feed is a bit screwy also
[02:57:26] <dareposte> i tore my auto feed out now
[02:57:28] <SWPadnos> not that I care much, since the (ongoing) plan is to CNC it
[02:57:30] <SWPadnos> yep
[02:57:47] <SWPadnos> I'm considering selling my head, since it's a 2J vari-speed
[02:57:58] <SWPadnos> and I don't really need vari-speed with a VFD
[02:58:00] <dareposte> and based on what you told me, i can also tear out that quill feed and spline shaft
[02:58:09] <SWPadnos> err
[02:58:15] <SWPadnos> no, I don't know about that
[02:58:26] <dareposte> well if the screw drives from the depth stop, no need for a manual quill feed
[02:58:28] <SWPadnos> isn't the spline shaft the actuall tool-holding part of the quill?
[02:58:33] <SWPadnos> (or is there another one?)
[02:58:36] <dareposte> oh not that one
[02:58:43] <ds3> is hthe vari speed the one with the connical pulley that you can only adjust when it is running?
[02:58:45] <dareposte> pinion would be a more accurate term
[02:58:56] <SWPadnos> oh, yes, you could remove the clockspring assembly and other manual stuff
[02:59:03] <SWPadnos> ds3, yes
[02:59:22] <ds3> those things are neat
[02:59:28] <dareposte> it didn't come with a clock spring, but the pinion gear is there and i can't figure out how to get it out
[02:59:35] <dareposte> oh well, tomorrow is a new day for it
[02:59:39] <SWPadnos> heh
[02:59:43] <SWPadnos> tomorrow is packing day for me
[03:00:20] <dareposte> thanks for all the advice and links everybody
[03:00:33] <SWPadnos> sure. have fun with it
[03:00:35] <dareposte> good luck packing SWPadnos, movign or a trip?
[03:00:55] <SWPadnos> trip - heading to San Francisco for a couple of days before the Embedded Systems Conference next week
[03:01:04] <dareposte> sounds fun
[03:01:05] <SWPadnos> one of my cousins just moved out there
[03:01:08] <SWPadnos> yep, should be
[03:01:28] <dareposte> well have a great trip, thanks for the tips
[03:01:40] <dareposte> i'm gonna hit the hay
[03:01:43] <SWPadnos> sure. see you around
[03:10:29] <ds3> SWPadnos: will you be anyplace specific at ESC?
[03:10:36] <SWPadnos> nope
[03:10:47] <SWPadnos> I was thinking I should look through the schedule tomorrow :)
[03:11:07] <ds3> ah okay
[03:11:13] <SWPadnos> I really wish they'd have a friggin PDF of the schedule though, instead of that annoying flash thing
[03:11:28] <ds3> at least I have seen you once so I will know if I walk pass you
[03:11:34] <SWPadnos> Im planning on going to your low resource Linux talk though
[03:11:35] <SWPadnos> heh
[03:12:02] <SWPadnos> I bought the BeagleBoard (even though they're selling it for more than I can get it online)
[03:12:02] <ds3> ah... so I can count on one heckler ;)
[03:12:07] <SWPadnos> so I'll be doing some of those things
[03:12:09] <SWPadnos> yep ;)
[03:12:22] <ds3> they are having a Beagle usersgroup meeting on Thu
[03:12:34] <SWPadnos> ok
[03:12:54] <SWPadnos> I'm not sure what's happening now, with Friday sessions rescheduled for other days
[03:13:09] <ds3> they changed? so Fri is empty?
[03:13:29] <SWPadnos> yep, the conference is only 4 days now
[03:14:07] <ds3> Hmmm
[03:14:52] <SWPadnos> I emailed about getting a partial refund, but they didn't buy it :)
[03:15:04] <SWPadnos> they said that they still have all the sessions available
[03:15:22] <SWPadnos> I pointed out that I'd only be able to go to 4 days of classes though, so I'd likely miss some extra ones
[03:15:40] <SWPadnos> I'm just glad I got a very steep discount on the fees
[03:16:01] <SWPadnos> (I'd be very annoyed if I had signed up the day before they cut the conference and fees by 20%)
[03:19:00] <ds3> I wonder if discount codes work
[03:19:08] <ds3> I have a 25% off code
[03:19:15] <SWPadnos> they may
[03:19:35] <SWPadnos> I got around 60% off
[03:21:00] <ds3> Oh NICE
[03:21:22] <SWPadnos> heh, yeah. that may be why they didn't want to refund me 20% of what I had actually paid :)
[03:22:19] <ds3> wonder how bad is the attendence relative to last year
[03:22:27] <SWPadnos> I'm betting it's really low
[03:23:06] <SWPadnos> another person I met contacted me and mentioned that his company would only pay for a one or two day pass this year - no full conference
[03:23:23] <ds3> hmmm
[03:23:57] <SWPadnos> (that wasn't why he contacted me, it just came up :) )
[03:26:29] <ds3> haha
[03:27:21] <ds3> I blame you... people aren't signing up cuz they don't get to hear about EMC ;)
[03:27:34] <SWPadnos> darn. I knew it
[03:41:41] <JymmmEMC> Eeesh I have a hdd that thinks it's a jet engine
[04:40:27] <Patrice> How do you design an estop loop on a stepper-based system?
[04:40:54] <SWPadnos> basically the same as a servo system, I'd say
[04:41:09] <SWPadnos> but it really depends on the safety standards you have to comply with
[04:41:21] <Patrice> Turning power off causes the stepper motors to move
[04:41:41] <SWPadnos> the first thing you have to remember about e-stop is that it's an emergency
[04:41:56] <SWPadnos> so the last of your worries is whether you need to re-home the machine
[04:42:58] <Patrice> I have an enclosure, when I open it, it is like pushing the e-stop
[04:43:07] <SWPadnos> ok, that's different to me :)
[04:43:37] <Patrice> I am too concerned training someone else
[04:43:42] <SWPadnos> you could use encoders, but I think that's a lot easier with servos than steppers
[04:43:56] <Patrice> They will forget to re-home
[04:44:16] <SWPadnos> I know that when the system is in e-stop, the motion controller updates the command position to track feedback position
[04:44:42] <SWPadnos> what that means is that if you have feedback, the motion controller will know where the machine is, and will "command" it to stay there when you re-enable motion
[04:45:26] <SWPadnos> you should probably think about whether you need two (or more) different "stop levels"
[04:45:48] <Patrice> Okay but I do not have servos. Is it possible to ground step and direction signals only?
[04:45:50] <SWPadnos> a big red stop button isn't expected to be used except in emergencies
[04:46:03] <SWPadnos> it depends on the safety standards you have to meet
[04:46:33] <Patrice> Can OSHA help me?
[04:46:54] <SWPadnos> it's possible :)
[04:47:02] <SWPadnos> I don't know how helpful they are though
[04:47:39] <Patrice> Who has authority over UL approvals?
[04:47:45] <SWPadnos> uh, UL?
[04:48:15] <Patrice> UL or CE in Europe, safety standard
[04:49:10] <SWPadnos> I think UL is just a test lab
[04:49:21] <Patrice> Normally, a piece of equipment on a manufacturing floor should be UL listed
[04:49:34] <SWPadnos> they publish some standards (I think), but more or less they just certify that something passes some set of tests
[04:49:39] <SWPadnos> sure, but that's not the only thing
[04:50:16] <SWPadnos> for instance, the semiconductor undistry has the Semi-S2 spec, which is more stringent than most other industrial standards
[04:50:20] <SWPadnos> industry
[04:50:48] <SWPadnos> it says, among other things, that absolutely all hazardous energy must be removed from the machine on e-stop
[04:51:13] <SWPadnos> so there's not much you can do there, it's ambiguous as to whether you're allowed to leave encoders powered even
[04:51:26] <JymmmEMC> osha
[04:51:45] <Patrice> WE have a stepper-based system that re-homes automatically whenever an operator starts a program
[04:51:57] <Patrice> I wanted to do so with EMC2
[04:52:17] <SWPadnos> there's no G-code to do that, but it should be possible using classicladder and halui (or something else)
[04:52:56] <SWPadnos> it also depends on what you end up using for your GUI. If you write something specific, you can have it re-home every time the door is re-closed
[04:53:41] <Patrice> I am using axis as it is, which is great
[04:53:55] <Patrice> I am not a great programmer
[04:54:34] <SWPadnos> I know a few ;)
[04:55:48] <Patrice> I downloaded EMC2 trunk to study the code and identify what does what
[04:55:58] <SWPadnos> it's not an easy task
[04:56:16] <Patrice> Definitely not
[04:57:44] <SWPadnos> luckily there are people around who are generally willing to answer questions
[04:58:01] <cradek> it seems wrong to me that just opening the cover estops and loses position
[04:58:22] <SWPadnos> it makes some sense actually
[04:58:40] <SWPadnos> since you have to prevent motion while the door is open, e-stop seems like an easy way to do that
[04:58:46] <SWPadnos> and the machine just re-homes every time
[04:58:50] <SWPadnos> automatically
[04:58:55] <Patrice> I wanted maximum safety
[04:59:04] <cradek> sounds like a huge obstacle to getting work done
[04:59:05] <SWPadnos> sure, that makes sense
[04:59:12] <cradek> I can sure see the spindle not starting, or something like that
[04:59:38] <cradek> but no motion allowed? no jogging? how can you touch off the workpiece for instance?
[04:59:39] <ds3> are there any sure fire recipes for tuning an openloop stepper system to make sure it doesn't stall?
[05:00:18] <cradek> even the spindle not starting is an obstacle - how would you run an edgefinder?
[05:00:31] <cradek> just my opinions, of course
[05:00:44] <SWPadnos> ds3, I don't think so, except maybe if you do a lot of calculations based on machine mechanics and the motor torque curve
[05:00:47] <Patrice> I mounted a probe in the back of the spindle
[05:01:09] <SWPadnos> cradek, I think in practice what happens is that the operators soon put tape on the door switches
[05:01:21] <cradek> I imagine so
[05:01:56] <cradek> if you didn't correctly pick the safety/inconvenience tradeoff to start with
[05:02:02] <SWPadnos> in a pro shop though, you have to be really careful to avoid liability lawsuits
[05:02:11] <ds3> SWPadnos: i was afraid of that... the dos software I am using stalls if I do long X rapids but I don't have time to switch over to EMC :(
[05:02:19] <Patrice> I agree with cradek but safety is such a big deal...
[05:02:26] <SWPadnos> and convenience is a small hindrance compared to lawsuits
[05:02:28] <cradek> even with a probe - how do you center the wiggler and line it up to a punch or scribe mark?
[05:02:43] <cradek> ds3: sure-fire way is to slow down until it stops stalling
[05:02:44] <SWPadnos> use a different probing method
[05:03:07] <cradek> you can't probe a scribe - you have to look at it, sometimes up close with magnification
[05:03:32] <cradek> anyway, sorry, not my tradeoff to decide - as you were
[05:04:23] <SWPadnos> it's just different when there are strict safety rules you have to comply with
[05:04:36] <cradek> I'm sure that's true
[05:04:46] <SWPadnos> like "no motion is allowed if the work envelope is accessible to the operator"
[05:04:56] <SWPadnos> (that's in Semi S2)
[05:04:57] <cradek> but like you say, if they are wrong, the operator will have to defeat it to get work done
[05:05:12] <cradek> :-/
[05:05:33] <ds3> it sounds like the perfectly secured computer - one that is unplugged and stored in a vault
[05:05:34] <SWPadnos> so you have to change the work methods in those cases
[05:05:49] <SWPadnos> with no hard drive, and cement in the network and USB jacks
[05:06:05] <cradek> my HNC's service manual tells you first thing how to tape the safety interlock switches so you can service the machine
[05:06:40] <SWPadnos> I guess service people are expected to be "skilled"
[05:06:58] <SWPadnos> calibration is a different use case than normal operation
[05:07:03] <cradek> true
[05:08:44] <SWPadnos> well, night folks
[05:09:00] <Patrice> Thank you
[05:19:38] <DanielFalck> hi Patrice
[05:22:16] <Patrice> Hi Dan
[05:22:51] <DanielFalck> so, you have automated edge finding right?
[05:22:54] <DanielFalck> with the probe
[05:23:13] <Patrice> Yes, it works fine
[05:23:32] <Patrice> You can establish a datum easily
[05:24:00] <DanielFalck> you should find a place to show off your video - maybe youtube
[05:24:29] <Patrice> I have to look into that
[05:25:05] <DanielFalck> so, when the operator opens the door to the machine, the e-stop is tripped and the stepper drivers jump a bit?
[05:25:21] <DanielFalck> because power is cut to them
[05:25:26] <Patrice> Yes
[05:25:41] <DanielFalck> when the door is closed, power is reapplied?
[05:25:57] <Patrice> Yes, It is worse for Z because of gravity
[05:27:34] <DanielFalck> could you add a small electric brake that engages, when power is cut off?
[05:28:18] <Patrice> I have seen those.
[05:30:21] <Patrice> Can I share my work on the wiki maybe?
[05:31:49] <DanielFalck> maybe you could do a summary
[05:32:13] <DanielFalck> and give some links to youtube videos
[05:32:37] <Patrice> How do we become an author on the wiki?
[05:32:46] <motioncontrol> Good morning .can use the emc with maschine differente z axis combination.I have one maschine with z axis not vertical, but orizzontal.is necessary changle only the plan (g17-g18-g19) or the kinematick?
[05:33:05] <DanielFalck> there are some instructions on the bottom of the wiki page 'Basic steps' maybe
[05:34:27] <DanielFalck> http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?BasicSteps
[05:37:04] <DanielFalck> Patrice: I'll chat with you tomorrow
[05:37:27] <Patrice> Okay
[05:38:35] <Patrice> motioncontrol: you basically have a horizontal milling machine?
[05:41:48] <motioncontrol> yes
[05:42:06] <motioncontrol> the z axis not vertical
[05:42:13] <motioncontrol> but orizzontal
[05:42:38] <motioncontrol> i ghange for correct work only plane ?
[05:45:27] <tomp> so the girl reading the notes came across 'ampacity'
[05:45:43] <tomp> now we all know what is meant by 'happy city'
[05:45:49] <tomp> ;)
[05:47:30] <Patrice> motioncontrol: the machine is equivalent to a vertical one, that has been rotated 90 degrees
[05:47:58] <Patrice> Your axes are the same
[06:00:42] <motioncontrol> yes the z axis is rotate of 90 grad. i use only g17 plane ?
[06:54:57] <tomp> use g17 for circles about Z ( your cord system is rotated, the codes still follow the axis )
[08:40:34] <archivist> logger_emc: bookmark
[08:40:34] <archivist> Just this once .. here's the log: http://www.linuxcnc.org/irc/irc.freenode.net:6667/emc/2009-03-26.txt
[08:55:52] <pjm_> good morning
[08:56:36] <archivist> goo moaning
[09:01:32] <mib_i9dqks> Good morning all! Does someone ever played with the Celerra Simulator VMware? I'm trying to get it work with AD....
[13:36:06] <skunkworks_> Did chrism get modbus support working in cl?
[13:36:18] <skunkworks_> (serial)
[13:36:35] <alex_joni> I think he did
[13:37:13] <skunkworks_> hmm looks like he did
[13:37:26] <alex_joni> although the only note in the changelog is about GS2 VFDs
[13:37:26] <skunkworks_> so - that should be in 2.3
[13:37:33] <skunkworks_> right
[13:37:59] <skunkworks_> on the list it is mentioned
[13:38:14] <alex_joni> http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?ClassicLadder_Ver_7.124#Modbus
[13:38:59] <skunkworks_> cool
[13:41:05] <skunkworks_> and it is in the manual - great work bjt
[13:41:18] <BJT-Work> thanks skunkworks_
[13:47:34] <SWPadnos> I suppose there should be a tiny note on command-line completion in halcmd
[13:47:52] <SWPadnos> but I'm not sure we ever figured out how to get bash to do that for installed systems
[13:48:29] <archivist> * archivist contemplates vismach morfs to an open source vericut workalike
[13:51:05] <pjm_> archivist when is the next UK engineering show etc?
[13:52:18] <archivist> yesterday and today, or are you talking model engineering
[13:53:18] <archivist> I talked to one of the Vericut people yesterday, very interesting
[13:54:55] <archivist> next big toy ex at the NEC is http://www.mach2010.com/
[13:56:14] <pjm_> ah ok i will look, thanks
[13:56:21] <archivist> next good (never been yet) is Harrogate model engineering show
[13:56:25] <alex_joni> so now mach3 is not enough? it's 2010? :P
[13:56:32] <pjm_> hahhh
[13:56:44] <pjm_> perhaps it'll be functional by version 2010
[13:58:45] <archivist> mach the toy would never be seen at the NEC mach 2010 , only grown up toys there
[13:59:02] <alex_joni> archivist: how many blades?
[13:59:18] <archivist> blades?
[13:59:23] <alex_joni> razors :P
[14:00:46] <toastatwork> a trip to the ER for stitches
[14:01:20] <Optic> i've been thinking of switching to single-blade safety razor
[14:01:50] <archivist> whats a razor? /me a proper geek
[14:02:01] <alex_joni> hah
[14:02:12] <alex_joni> archivist: you probably use a mill + probe?
[14:02:23] <alex_joni> before the laser removal?
[14:02:37] <archivist> will have to be long reach to find chin
[14:31:50] <tomp> Patrice ?
[14:33:26] <tomp> use a brake on those axis,
[14:33:34] <tomp> let estop kill the power to the stepper system and loss of power will clamp the brakes.
[14:33:42] <tomp> you can rehome afterwards as you planned.
[14:33:43] <tomp> the brakes will drasticly limit any motion after estop.
[14:34:26] <Optic> eeeeestop!
[14:34:48] <tomp> energize ( release ) the brake with a servo-on ( stepper-on) signal on wakeup ( with some care )
[14:37:19] <the_goat> the_goat is now known as fryderyk
[14:37:36] <fryderyk> fryderyk is now known as the_goat
[14:40:47] <tomaw> [Global Notice] Hi all. One of our server sponsors appears to be having connectivity issues. Please keep with us while we try to resolve the issues. Sorry for the inconvenience and thanks for using freenode!
[14:51:29] <BJT-Work> dang lumpy today
[14:57:49] <skunkworks_> http://www.cnczone.com/forums/showpost.php?p=588773&postcount=11
[15:02:10] <archivist> first impression is borked gcode and should have had a syntax error
[15:03:23] <skunkworks_> I told him to post an example
[15:06:19] <archivist> I think I managed a silly yesterday with excess ### and
[15:06:31] <archivist> didnt see an error
[15:07:04] <SWPadnos> ###123 is not an error
[15:07:09] <archivist> was in the middle of a gear so could not stop and check
[15:07:40] <SWPadnos> it means "the value of the variable whose number is held in the variable whose number is held in the variable number 123"
[15:07:52] <SWPadnos> that would be double indirection :)
[15:08:19] <archivist> it there/should there be an indirection limit
[15:08:28] <SWPadnos> probably 10 or so, but I don't know for sure
[15:08:41] <SWPadnos> that is, if there is a limit
[15:11:10] <archivist> just thought of a better reason for gcode questions, editing gcode mid cycle is error prone, defined questions IN the gcode could stop that
[15:11:24] <SWPadnos> yeah, prompts would be great
[15:11:48] <SWPadnos> (prompt, "Enter slab thickness", 1123)
[15:11:55] <SWPadnos> to get a number into #1123
[15:12:09] <Optic> we're going to cut some arcylic gears tonight
[15:12:33] <archivist> number of teeth for me, cut length, extra depth and recycle
[15:39:39] <jdhNC> how much power do you realistically need to mill 0.25" aluminum? (stepper torque and spindle power?)
[15:42:40] <paragon37> How are we all today?
[15:43:43] <paragon37> Could someone please explain the benifits / drawbacks of Acramill collet mill holders and Clarckson type?
[15:45:08] <paragon37> Sorry that should be "Acramill collet mill holders vs Clarckson type?
[15:45:14] <archivist> clarkson is very positive (self tighten)
[15:47:24] <paragon37> archivist: Thanks for that... I currently own a Clarckson Int30 taper C-type collet holder but was looking at an Acramill Holder on ebay. The Clarckson is imperial where as the Acramill is metric.
[15:47:51] <archivist> I dont know the acramill
[15:47:51] <paragon37> Clarckson = Clarkson
[15:48:25] <paragon37> archivist: No worries thanks for the info...
[15:48:47] <archivist> but pic http://www.gandmtools.co.uk/cat_leaf.php?id=6467 seems to have a separate screw item
[15:49:18] <archivist> clarksone has the thread as part of the collett
[15:54:44] <skunkworks_> wow - these atom boards are small!
[15:54:57] <SWPadnos> mini ITX
[15:55:30] <skunkworks_> Cool!
[15:55:45] <skunkworks_> the picture does not do them justice
[15:56:15] <SWPadnos> yeah. I had the same reaction to the G540
[16:00:35] <cnc_engineer_> hi there!
[16:01:07] <cnc_engineer_> Is there any way to change the backlash compensation speed of an axis?
[16:02:40] <cnc_engineer_> Is there any way to change the backlash compensation speed of an axis?
[16:03:11] <SWPadnos> no, I'm pretty sure you'd have to modify the source code to do that
[16:04:11] <skunkworks_> hey - it boots
[16:04:45] <cnc_engineer_> In source code, where i can find the backlash compensation speed ?
[16:05:07] <SWPadnos> I don't know exactly where it is, but I believe it's 0.5* the max accel for that axis
[16:05:29] <SWPadnos> you could just reduce the axis accel to 2/3 its real limit
[16:05:49] <SWPadnos> (so I guess you can indirectly change the backlash accel, but not independently of the normal accel)
[16:05:56] <jepler> src/emc/motion/motion.c
[16:06:26] <jepler> or maybe control.c
[16:06:28] <jepler> grep for backlash
[16:06:42] <jepler> lead screw error compensation. (Leadscrew error compensation is
[16:06:42] <jepler> a more sophisticated version that includes backlash comp.) It uses
[16:06:44] <jepler> er
[16:06:47] <jepler> /* 'compute_screw_comp()' is responsible for calculating backlash and
[16:06:47] <jepler> lead screw error compensation. (Leadscrew error compensation is
[16:06:47] <jepler> a more sophisticated version that includes backlash comp.) It uses
[16:37:48] <toastatw1rk> .n
[16:37:58] <toastatw1rk> well, looks like there's another creep of layoffs
[16:38:06] <toastatw1rk> and will be another one tommorow
[16:38:21] <toastatw1rk> so that's four i've made it through, will it be five?
[16:38:32] <toastatw1rk> i'm sure there's an oppertunity for a betting pool here, somewhere
[16:39:09] <eric_unterhause1> I know someone that just got laid off from an air bearing company
[16:39:23] <toastatw1rk> like, today?
[16:39:29] <eric_unterhause1> like, monday
[16:39:34] <toastatw1rk> oh, not us then
[16:39:48] <eric_unterhause1> I think we previously established he works at a different company
[16:39:51] <toastatw1rk> oh
[16:40:00] <toastatw1rk> well, time to fix the machine i just screwed up
[16:41:56] <skunkworks_> The tech college that my wife works at just layed off 10 people. (she was a little worried)
[16:44:03] <eric_unterhause1> my wife's main worry is that the person that shared her load with her quit, and now they have imposed 10% cuts
[16:44:38] <eric_unterhause1> hopefully, somebody else quits so they can hire her some help
[16:44:50] <skunkworks_> yeck
[16:45:35] <archivist> there's only me here to get thrown our!
[16:45:43] <archivist> out
[16:46:10] <Optic> there are people at hacklab trying to design acrylic gears
[16:46:11] <archivist> he has announced down sizing but no timeframe!
[16:46:14] <eric_unterhause1> my wife is fairly good at setting limits though
[16:46:33] <eric_unterhause1> archivist, two man shop?
[16:46:39] <archivist> yup
[16:46:53] <archivist> useless boss and me
[16:46:57] <eric_unterhause1> somehow don't think the owner would be downsizing himself
[16:47:24] <archivist> I have to hang on to get the free toys though
[16:47:55] <eric_unterhause1> I'm in a similar position
[16:49:14] <archivist> exit includes machine tools here as he is selling the site
[16:49:58] <eric_unterhause1> not good
[16:50:27] <archivist> I get some machines, so part good
[17:29:45] <toastatw1rk> re: layoffs
[17:29:49] <toastatw1rk> i'm kind of in a bet with a co-worker
[17:29:59] <toastatw1rk> he's one of the two senior machinists, he doesn't think i'm going to get laid off
[17:30:01] <toastatw1rk> i think i will
[17:30:31] <toastatw1rk> toastatw1rk is now known as toastatwork
[17:31:02] <ds3> what do you get if you are right?
[17:31:25] <archivist> a holiday
[17:31:33] <toastatwork> haha, yeah
[17:31:51] <toastatwork> if i get laid off the choices are a) find a new job, or b) go to school full time and then some
[17:36:06] <toastatwork> which i guess is not such a bad prospect, a lot of places around pay more than here
[17:36:19] <toastatwork> but i hear a lot of the shop owners are huge assholes
[17:36:38] <archivist> competition for each job available means hundreds applying though
[17:37:08] <toastatwork> around here the companies are either like "we are going out of business"
[17:37:09] <toastatwork> or
[17:37:16] <toastatwork> "we can't find enough people, we're willing to pay"
[17:37:55] <toastatwork> like, some places have 4-5 job openings in their mfg. departments, and have stayed that way since last year
[17:37:58] <toastatwork> i dunno
[17:38:29] <tomaw> [Global Notice] Hi again. One of our hubs had connectivity issues causing some servers and users to be unable to connect to the network, resulting in a rather noisy set of splits. The issue has been resolved now and we believe there should be no further interruptions. Thanks!
[17:39:18] <archivist> lucky
[17:41:20] <skunkworks_> SWPadnos: be careful of the fans on the goal3 boards we got. I just had one seize up.
[17:41:30] <SWPadnos> bummer
[17:41:35] <SWPadnos> thanks for hte heads up
[17:41:37] <SWPadnos> the
[17:41:49] <skunkworks_> that was what - 6 months? ;)
[17:42:49] <skunkworks_> actually less than that - maybe a couple months.. this motherboard replaced a failed motherboard not to long ago
[17:43:29] <skunkworks_> still boots :)
[17:45:17] <SWPadnos> should run for at least a little while too :)
[17:46:38] <skunkworks_> the operator called and said " the computer boots up and the screen looks like a barcode"
[18:31:26] <dave_1> anyone have any experience with m5i20_pidtest.hal?
[18:39:58] <dave_1> guess everyone is napping.
[18:40:32] <BJT-Work> I need a nap
[18:41:18] <skunkworks_> same here
[18:55:55] <motioncontrol> ggod evening.I have a problem with two card m5i20 in one pc.Normali the 2 card fuction ok, but i enable halui = halui in ini.file terminal display error: insufficent memory for signal Yhome because thanks?
[18:56:47] <motioncontrol> the error not dispay if i delete the halui = halui
[19:01:22] <alex_joni> sounds like you're running out of HAL memory
[19:02:44] <alex_joni> can you do a hal show > file, and pastebin the file ?
[19:03:40] <motioncontrol> alex good evening, i don't stay now in my laboratory , but tomorrow i prove.do you thing ?
[19:04:38] <motioncontrol> the file i patsebit is : hal_show ?
[19:04:56] <alex_joni> no, you need to type halcmd show all > file
[19:05:23] <motioncontrol> ok tomorrow i prove.
[19:05:26] <alex_joni> I think you can fix it, by increasing the HAL memory size.. do you run from a package or compiled from source?
[19:05:53] <alex_joni> (the define I would try to change is #define HAL_SIZE 131000 - in emc2/src/hal/hal_priv.h )
[19:05:57] <motioncontrol> the message error sometime stop on Yhome, sometime on Zhome ecc..
[19:06:28] <motioncontrol> or motion.1.fb.command ecc
[19:06:52] <motioncontrol> ok i can increase the value ?
[19:07:30] <alex_joni> motioncontrol: if you have compiled from source, yes
[19:07:43] <motioncontrol> yes i compile at source
[19:08:19] <alex_joni> then you can increase it, but also change HAL_VER (so you don't have possible problems)
[19:08:42] <alex_joni> HAL_VER = 0x0000000A now, make it 0x0000000B
[19:11:10] <motioncontrol> ok thanks torrow i prove. alex excuse for maschine with z axis in orizzontal position , not z vertical axis, for correct fuction i change only the plane (g17-g18-g19) or the kinematics?
[19:11:34] <alex_joni> only plane I think
[19:12:16] <motioncontrol> ok very thanks for info and patience
[19:12:26] <alex_joni> but it depends how the g-code looks
[19:12:58] <motioncontrol> because depende at g-code?
[19:13:22] <alex_joni> how is X & Y/
[19:13:24] <alex_joni> ?
[19:13:50] <alex_joni> if Z is horizontal, then Y? is vertical
[19:14:10] <motioncontrol> yes
[19:14:34] <alex_joni> it's just like a regular mill, just tilted
[19:14:37] <motioncontrol> z axis is orizzontal and y is vertical
[19:14:58] <motioncontrol> ok thanks again alex
[19:15:42] <alex_joni> motioncontrol: let us know what value works for you
[19:16:47] <motioncontrol> i don't understand alex
[19:17:06] <alex_joni> when you increase the HAL_SIZE
[19:17:13] <alex_joni> and it works, tell me what value works for you
[19:18:02] <motioncontrol> one moment i traslate
[19:18:59] <motioncontrol> ok alex i inform you
[19:19:09] <alex_joni> thanks :)
[19:19:58] <motioncontrol> i have enable in emc the spindle position with encoder
[19:20:14] <motioncontrol> fuction ok
[19:20:15] <jepler> start by making HAL_SIZE twice what it is now; if that's still not enough, double it again.
[19:21:10] <motioncontrol> ok i thing set initial at 200000, if not work increase at 400000
[19:23:12] <motioncontrol> alex now i go in my laboratory because i'm curious, you wait me ?
[19:24:30] <skunkworks_> huh - the atom shows up as 4 cores
[19:24:39] <SWPadnos> ewww. does it have HT?
[19:24:53] <skunkworks_> good question
[19:24:54] <SWPadnos> oh yeah, maybe jmk mentioned that
[19:33:06] <jepler> the more cores the merrier, right?
[19:33:25] <jepler> I guess HT isn't cores
[19:33:25] <skunkworks_> exactly
[19:33:30] <skunkworks_> heh
[19:33:31] <jepler> but it is good for marketing
[19:33:40] <SWPadnos> with CPUsets, it could be great :)
[19:33:44] <jepler> "our CPU has 4 of something, while our competitor has only 2 of something else"
[19:34:06] <SWPadnos> superscalar out-of-order re-execution blocks with register renaming
[19:34:19] <SWPadnos> "would you like fries with that?"
[19:35:17] <motioncontrol> ok i prove Hal_Size at 262000 fuction ok with 2 card
[19:36:11] <skunkworks_> Great!
[19:36:55] <motioncontrol> thanks at all
[19:36:58] <jepler> it would be useful to know the used memory reported by "halcmd status"
[19:37:09] <jepler> to get a sense of how close to the new limit you are with your configuration
[19:37:16] <jepler> like this: http://pastebin.ca/1373274
[19:39:15] <motioncontrol> ok i understand, i don't can control the status because i have the my cildren at in home and i go at my laboratory very fast
[19:40:00] <motioncontrol> i thing with 2 card the memory necessary is upper
[19:42:26] <SWPadnos> if 1 card plus halui works with 131000, then 2 cards + 1 halui should fit in 262000
[19:42:31] <SWPadnos> just my opinion of course :)
[19:47:01] <motioncontrol> the day before i start a question for shared library and write the pin in hal.is possible only read with shared library the pin or the signal?
[20:00:53] <cncjerry> hey, made my jogging changes to Axis this morning. I now have two speeds shift+arrow and arrow, as well as incremental with ctrl+arrow, love it
[20:04:26] <MrSunshine__> why is not somthing like usb used to run cnc machines insted of the parport ?
[20:04:47] <archivist_attic> usb has delays
[20:05:36] <jepler> motioncontrol: same answer: you should use HAL signals.
[20:06:03] <jepler> MrSunshine__: http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?Emc2HardwareDesign
[20:07:21] <archivist_attic> was talking to somebody yesterday about USB and latency, he had an interesting comment about latency and how NI get around it
[20:08:53] <SWPadnos> NI is ambiguous as to how they rate RT performance
[20:10:11] <micges> cncjerry: how your jog + ctrl works ?
[20:10:12] <skunkworks_> NI?
[20:10:22] <alex_joni> one of the knights
[20:10:39] <skunkworks_> :)
[20:10:44] <skunkworks_> they say NI
[20:10:57] <archivist_attic> I think reading between the lines, its the synchronous mode but ther change the buffer structure so some higher importance gets through
[20:11:07] <archivist_attic> National Instruments
[20:11:19] <alex_joni> you said the word
[20:12:57] <cncjerry> micges, I modified Axis so that if I press the arrow keys, it jogs 1/2 the slider speed. If I press shift+arrow key it jogs at the slider speed. If I press ctrol+arrow, it jogs at a fixed increment of .001. I am going to add a slider so that I can change the increment.
[20:13:51] <micges> cool
[20:14:36] <archivist_attic> SWPadnos, I feel like getting their USB cheapo A/D, so I get the API info as well
[20:15:22] <jepler> cncjerry: you should submit a patch. If you used cvs, it's very easy to create a patch (a file that allows another developer to automatically make the same changes you did). http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?CVS#Patch_Submission
[20:16:21] <jepler> before committing it, my main concern is that this patch doesn't introduce any new ways to accidentally have a jog continue after all jog keys and buttons have been released.
[20:16:37] <jepler> that's where I'd concentrate my testing effort
[20:18:31] <jepler> archivist_attic: data acquisition doesn't have to be realtime in the sense emc is, does it? That is, you can buffer data to your heart's content as long as nothing gets lost and the operator doesn't feel like he's waiting too long for it to appear onscreen..
[20:19:14] <jepler> or is this the kind of system where you're guaranteed that software running in the PC can assert an output within say 1ms after an external condition arises?
[20:19:22] <JymmmEMC> Pimp This Bum - http://www.cnn.com/2009/US/03/26/pimp.this.bum/index.html
[20:20:15] <archivist_attic> jepler I was pressing the droid at show yesterday, I think they have an answer, but deatails sketchy
[20:20:34] <cncjerry> jepler, I don't consider myself a developer, if anyone is interested, I will gladly share the code, it is very basic.
[20:20:55] <jepler> cncjerry: doesn't matter if you consider yourself a developer, it sounds like you are successfully modifying the software to suit your needs..
[20:21:00] <jepler> cncjerry: and yes I think it's worth sharing
[20:21:37] <cncjerry> is CVS easy to use? automatic to the extent that I just make the change and it develops the patch?
[20:21:58] <jepler> I'm pretty well used to it by now so I'm very comfortable with it
[20:22:23] <jepler> but yes, it very nicely keeps track of the difference between the original file and the modified version so that you can share those differences with others
[20:23:06] <SWPadnos> if you got the source code with CVS (using the anonymous checkout suggested on the wiki), then you only need to execute one command to get a usable patch (per file, if you want to keep it simple)
[20:23:12] <archivist_attic> jepler droid said they have a second channel for time critical, which I'm guessing is part of the bidirectional synchrous structure un USB2
[20:23:18] <cncjerry> I'll look at it after I test this for a while. I want t add an increment text box that is persistent. I might actually wait for the 2.3 version and apply the changes there
[20:23:25] <SWPadnos> the command is "cvs diff -u <the_file>" (without quotes or the angle brackets)
[20:23:47] <SWPadnos> if you redirect that to a file, the file can then be used as a patch by someone else
[20:24:14] <SWPadnos> (cvs diff -u axis.py > axis_jog.diff)
[20:25:05] <cncjerry> but in use, coming from mach3, not having the two-speed jog as well as the keyboard increment with control pressed drove me nuts. typically used in touchoff where you go fast over, slow down as you approach, and then do the .001 increment as your edge finder hits the part.
[20:25:48] <archivist_attic> I have one hand on the KB and the other on the mouse for that
[20:26:27] <cncjerry> also, pressing the i key with the wrap around caused me two crashes. my monitor is above and to the left where i have lost my vision. so I had to get close to the tube after prssing i to ensure I was at .001.
[20:28:53] <alex_joni> pendant ftw
[20:29:04] <SWPadnos> heh, yeah
[20:30:08] <SWPadnos> one thing to note is that EMC2 handles jogwheels a hell of a lot better than Mach (from the reports I've seen), so you can actually use a jogwheel to do these things with EMC2 (and you can have a number of buttons on the pendant/panel to modify the speed/scale/etc.)
[20:30:53] <JymmmEMC> BTW, that link wasn't humor/joke site
[20:31:06] <SWPadnos> no, I thought it was an interesting article
[20:31:17] <JymmmEMC> I that it was a great idea
[20:33:22] <alex_joni> I agree with the article that it probably won't have much of an impact
[20:37:15] <MrSunshine__> anyone here know their current sensing electrics? .. will the current sense range from 0V to Vin or will it range from like 0 - 2V or something? :/
[20:38:00] <MrSunshine__> or it had to do with voltage drop over the resistor right? :)
[20:39:37] <jepler> MrSunshine__: "volts per amp"
[20:39:40] <archivist_attic> yes 0 to (I * R)
[20:40:21] <MrSunshine__> so, 2 * 0.5 as max, would yield me 0 - 1V then ?
[20:40:46] <SWPadnos> could you put units on all those numbers please?
[20:40:55] <SWPadnos> 2*0.5 gives 1, not 1V
[20:41:12] <SWPadnos> 2A * 0.5 ohm = 1V
[20:41:27] <MrSunshine__> hehe sorry :)
[20:41:30] <MrSunshine__> 2A 0.5ohm
[20:43:04] <MrSunshine__> ahh, yes then that explains the 0.01V drop when LED starts, 20mA and 0.5ohm yields 0.01V :)
[20:44:06] <MrSunshine__> but does not explain why i get 4.92 - 4.91V insted of 0.01V ? :)
[20:45:53] <archivist_attic> where you reference your measurement
[20:46:34] <MrSunshine__> GND -> before the current sense resistor
[20:47:09] <MrSunshine__> wait, might be VCC -> before current sense resistor
[20:47:12] <MrSunshine__> have to remeasure that then :)
[20:49:56] <JymmmEMC> alex_joni: Well, it impacted at least two ppl. Better than nothing at all IMO.
[20:51:32] <MrSunshine__> ok now its clearer, i managed to measure against VCC before :P
[20:51:41] <MrSunshine__> now i get 0.001V when its off, 0.004V when the LED is on
[20:54:07] <MrSunshine__> so my ref goes from 0 - 5V so that should be divided by 5 then, to get it from 0 - 1V, then i can just calculate everything from that :)
[20:56:44] <jepler> huh, here's a new one on me: http://en.wikipedia.org/wiki/Iron-hydrogen_resistor
[21:00:52] <MrSunshine__> cool :)
[21:05:07] <alex_joni> jepler: cool
[21:14:56] <alex_joni> good night all
[22:01:28] <ds3> dangers of cad... it makes things go faster, but so scrap manages to keep up :(
[23:51:18] <leito> hello everybody, i was trying the new 2.3 beta version and i think the changes are very useful, i was wondering if anyone knows the aproximately date of the new version release?
[23:51:34] <leito> thanks in advance for your help :)
[23:55:31] <seb_kuzminsky> leito: i think it's april 15
[23:55:52] <seb_kuzminsky> http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?Emc2.3Status
[23:57:49] <leito> thank you very much