#linuxcnc | Logs for 2012-03-31

[01:23:55] <Jymmm> JT-Shop: ping
[01:24:43] -!- JT-Shop was kicked from #linuxcnc by Jymmm!~jymmm@unaffiliated/jymmm [JT-Shop]
[01:24:49] -!- jthornton was kicked from #linuxcnc by Jymmm!~jymmm@unaffiliated/jymmm [jthornton]
[01:30:27] <psha> hard ping
[01:31:50] <Jymmm> heh, well two hours of bouncing seems a tad much.
[01:58:20] <archivist> kicking a redular is bad form
[01:58:25] <archivist> regular
[02:06:01] <mrsun> archivist, if they are disconnecting/reconnecting all the time a kick is in order, its not to be mean to them its just to save other people alot of seing them connect/disconnect ;P
[02:07:44] <DJ9DJ> moin
[02:14:22] <ssi> I hope he gets that sorted out soon :/
[02:32:13] <Loetmichel> mornin'
[02:34:25] <mrsun> gah i want a bigger melting furnace, the one i have built has gone broken over the winter :(
[02:34:36] <mrsun> and i might have made it a tad bit on the big side ;P
[02:34:39] <ssi> I want a furnace myself
[02:35:17] <mrsun> got burners and everything, just need a good furnace body that can stand the heat, prerebly i want to be able to melt cast iron =)
[02:35:32] <ssi> I'd be happy starting with aluminum
[02:35:36] <ssi> but yeah, cast iron would be nice
[02:35:40] <Loetmichel> ssi: get some fire clay, some heat resistant stones, a blower and some coal... bingo ;-)
[02:35:46] <ssi> yeah I know
[02:35:51] <ssi> it's just yet another project :)
[02:36:04] <ssi> that and I have no idea where to get refractory
[02:36:06] <mrsun> got a small one for alu atm, can melt like 1 liter or so of metal with it
[02:36:28] <mrsun> ssi, furnace cement usaly is buyable at any hardware store .. atleast in sweden =)
[02:36:32] <mrsun> takes 1200 - 1300 degrees C
[02:36:47] <ssi> what do you need for iron
[02:36:48] <ssi> 1800C?
[02:37:04] <mrsun> highest carbon cast iron melts at 1260 or so degrees C
[02:37:14] <ssi> ah
[02:37:15] <mrsun> but a good 1500 - 1800 lining wouldnt be to bad :P
[02:39:24] <mrsun> an electric "furnace" for alu wouldnt be to bad either
[02:39:30] <mrsun> its not like it needs high temperatures =)
[02:39:32] <ssi> inductive?
[02:40:04] <mrsun> nah
[02:40:06] <mrsun> just heating elements
[02:40:18] <mrsun> http://www.youtube.com/watch?v=uYRWu5hpLZo&feature=g-vrec&context=G2024eb2RVAAAAAAAAAg like that
[02:41:07] <ssi> electric would be pretty good
[02:41:39] <mrsun> yeah no shortage of fuel atleast =)
[02:44:54] <mrsun> if i only could find refractory blocks like the ones he uses =)
[02:47:33] <mrsun> sucks that the refractory cement isnt reactive to alu like concrete is
[02:47:53] <ssi> what do you mean?
[02:48:03] <mrsun> concrete + alu powder == low dencity concrete due to gases being produced
[02:48:17] <ssi> weird
[02:48:31] <mrsun> it produces hydrogen gas i think it was
[02:48:36] <mrsun> making boubles in the concrete
[02:48:40] <ssi> makes it fluffy :)
[02:48:48] <Loetmichel> mrsun: put some NaOH in the concrete, than it eacts with the alu
[02:48:49] <Loetmichel> ;-)
[02:48:51] <Loetmichel> reacts
[02:49:05] <mrsun> ssi, yep
[02:49:19] <mazafaka> Why do you need low density concrete?
[02:49:35] <Loetmichel> iirc it isnt hydrogen, its Oxygen
[02:49:36] <mrsun> i went around the problem by adding some cement to the furnace cement to make it produce boubles :P
[02:49:42] <mrsun> Loetmichel, ahh might be =)
[02:49:53] <mrsun> mazafaka, furnace building, thermal insulation =)
[02:50:11] <ssi> I guess I need to sleep
[02:50:14] <ssi> bye all :)
[02:50:24] <Loetmichel> is there an international name for YTONG?
[02:50:32] <Loetmichel> (foam cement)
[02:51:11] <mazafaka> oh, how smart
[03:41:28] <mazafaka> Loetmichel: thongs are just some sick pants, in an international scale ( http://en.wikipedia.org/wiki/File:Thong_2.jpg )
[05:01:24] <Loetmichel> mazafaka: YTON is a european trademark for Foamed Cement blocks
[05:01:46] <mazafaka> oh... :)
[05:01:58] <Loetmichel> re @ home from bringing my wife to the airport, btw.
[05:05:26] <mazafaka> random thoughts on your further pastime: Good bunch of veggies and fruits can make magic to happen. Know just that health is valuable. Stew the cabbage, Loetmichel :) I wish I wouldn't be lazy to do it...
[05:07:03] <Loetmichel> ???
[05:07:26] <Loetmichel> <- just eating a bag fill of McD food ;-)
[05:14:54] <mazafaka> not bad
[05:16:47] <Loetmichel> mazafaka: I am only 105kg at the moment.
[05:17:11] <Loetmichel> my WIFE needs to diet so she can get a new hip joint.
[05:17:57] <Loetmichel> so I can eat what i want, but it would not be fair to eat junk foood if she has to eat 120gr spinach with 60gr Salmon as a dinner
[05:18:07] <Loetmichel> s/if/when
[05:41:24] <mazafaka> Loetmichel: why diet must be so rough? Eating spinach or pastry is good but whaqt if you create normal vegetarian food (not fried in fats, but something normal, on a daily basis)?
[06:24:08] <Loetmichel> mazafaka: because she has to lose some 60 pounds in less than a year?
[06:49:28] <mazafaka> *spinach or parsley, Loetmichel
[06:50:26] <mazafaka> Loetmichel: stupid diet, it will be easier to start some *right* diet, not to starve.
[06:51:05] <Loetmichel> mazafaka: its doctor prescribend and controlled, and it was just an example
[06:51:24] <Loetmichel> its not EVERY day spinach and salmon ;-)
[06:52:30] <mazafaka> She needs a good hobby if she restricts hereself in food. TV would be stupid idea, Internet will have finally brought emptiness
[06:52:52] <Loetmichel> and no, i am fed up wirth people who agressively want to impose their vegetarian lifestyle on others.
[06:53:33] <mazafaka> no about the hobby which will fill life while on the diet
[06:53:34] <Loetmichel> if not for the taste i would eating flesh just be stubborn and to irritate them ;-)
[06:54:29] <mazafaka> anyway, one need some good pastime if restrcits self in what he used to eat
[06:54:37] <Loetmichel> and the hobbys of my wife are none of your business.
[06:58:11] <mazafaka> I myself made a cleaning of the apartment today, prepare for 'right' pastime while in fact used to somehow survive through the problems.
[06:59:56] <mazafaka> Plan to use those shirt for wire of MIG/MAG to keep the cables on my MTB. Think to go and take angle grinder in the garage and work later in the evening, but need to clean windows at first.
[07:01:25] <mazafaka> 2 be young and in style http://www.flickr.com/photos/ilyagalkin/7031546129/in/photostream
[07:13:54] <mazafaka> I today feel fear a little. Have to become more independent, do many thing by myself. Hate many my pals because of their moans on life and how much they're got payed (it's about 40-50% higher than me).
[07:16:23] <mazafaka> Just have found cycleexif.com magazine
[08:23:06] <asdfasd> what the hell is that?
[08:23:09] <asdfasd> http://www.youtube.com/watch?v=9vtZY9m_BsE
[08:23:21] <asdfasd> 14th second
[08:24:02] <archivist> you mean the cutter?
[08:24:31] <asdfasd> I mean the sensor below
[08:24:39] <asdfasd> some kind of homing
[08:25:05] <asdfasd> and strange movements to find the zero
[08:26:46] <archivist> probably also working out the effective dia of the cutter
[08:27:59] <asdfasd> I have no idea what actually doing but probably with that complicated movements they are able to take all info needed to run straight away
[08:28:41] <archivist> http://www.zund.co.uk/g3_options.php
[08:28:44] <asdfasd> it looks usefull
[08:30:54] <asdfasd> here they say for the tool lenght only
[08:51:51] <mazafaka> heh, have to set zero for the coordinate system quite often to get the details.
[09:00:33] <asdfasd> in documentation says stepgen.n.steplen is in nanoseconds, then why in my hal file is set to 1 ?
[09:00:51] <asdfasd> stepgen.n.stepspace is set to 0
[10:11:11] <pcw__> <ssi> "I'm graphing the resolver velocity in halscope, and it's a big nasty waveform whose amplitude is bigger than the velocity itself at max speed "
[10:11:13] <pcw__> The velocity signal is likely to be totally useless unless the inputs are scaled correctly (the position will appear to move in steps to the tracking filter)
[10:24:46] <pcw__> As you increase the magnitude of the sine/cos greater than the input limits, the A-D/input circuit clips so you get closer and closer to square wave modulation envelopes, eventually ending up with quadrature (90 degree steps) The tracking filter cannot possibly
[10:24:48] <pcw__> follow these steps (whats the velocity of a step position change?)
[10:50:32] <SolarNRG> Hi guys
[10:56:21] <ssi> pcw__: ah that makes sense
[10:56:37] <ssi> pcw__: although, the velocity of my X/Z axes is pretty stable
[10:58:45] <ssi> pcw__: also, I captured this while the spindle was running at low speed
[10:58:45] <ssi> pcw__: https://p.twimg.com/ApU5AaDCIAA3VX-.jpg:large
[10:58:50] <pcw__> did you measure the spindle sine/cos signals?
[10:58:53] <ssi> note the little bit of noise
[10:59:00] <ssi> yea it's 3V rms like the other axes
[11:00:48] <pcw__> Yeah so the will be large amounts of a turn where the calculated position does not change and then jumps
[11:02:06] <ssi> yeah that makes good sense
[11:02:22] <ssi> did that hv card ship out wednesday?
[11:02:41] <pcw__> I think so
[11:02:50] <ssi> I may get it today if it went usps like the others
[11:05:41] <pcw__> The overload characteristics are not completely straightforward either as the input is oversampled (10 or 16 samples per carrier cycle) so some will be OK so the circle will gently morph into a square as you increase overdrive
[11:06:14] <pcw__> (so some samples away from the carrier peaks)
[11:06:46] <ssi> I snapped this as well
[11:06:46] <ssi> https://p.twimg.com/ApU5FqmCAAARbWM.jpg:large
[11:08:00] <pcw__> if you look at the lmv842 output pins that drive the DAC you should see the clipping
[11:10:52] <pcw__> those are like pins 1 and 7 of the bottom row chips. They should be at 2.5V with a superimposed sin or cos modulated carrier (clipping at 5V P-P)
[11:14:33] <pcw__> sorry lmv824
[11:18:18] <pcw__> and outputs are 1,7,8,14 = corner pins
[11:18:39] <ssi> looking at the datasheet now
[11:22:17] <FredrikHson> i guess its a nobrainer that its worth updating my install right?
[11:22:32] <FredrikHson> running 2.1.6 atm apparently
[11:24:46] <pcw__> thats an oldie...
[11:25:10] <FredrikHson> haven't had a reason to update it since i installed it waaay back
[11:25:30] <pcw__> look like jthornton has internetus interruptus
[11:27:01] <ssi> yeah he's in bad shape :P
[11:27:32] <FredrikHson> speaking of reinstalling everything no chance that there is an usb stick installer around?
[11:32:47] <FredrikHson> nm my old as hell laptop supports no such fancy things anyway
[12:28:50] <IchGuckLive> jthornton: there is a loose connection
[12:34:12] <IchGuckLive> im off
[12:34:29] <IchGuckLive> Have a nice suturday eveniing and 1April
[13:10:27] <Jordan__> how much are double start lead screws?
[13:10:57] <mrsun> how high is high ? :P
[13:11:16] <Jordan__> vs single start screws
[13:11:16] <joe9> how do I connect this to a power outlet: http://www.antekinc.com/details.php?p=185 the spec says: 115Vac – 2 red wires to neutral & 2 black wires to hot.
[13:11:24] <Jordan__> i can even't seem to find double start screws
[13:12:06] <joe9> wondering if there are any fixtures for that. I should probably check in #electronics. sorry for the bother.
[13:13:02] <Jymmm> SWPadnos: ping
[13:13:44] <archivist> Jordan__, ball or acme
[13:13:55] <Jordan__> acme
[13:14:11] <Jordan__> i'm looking for cheap
[13:14:23] <Jordan__> it's the only way
[13:14:33] <Jordan__> are they 2x the price in general archivist
[13:14:43] <archivist> cheap is make it yourself
[13:15:07] <Jordan__> make screws my self?
[13:15:13] <Jordan__> i don't think so
[13:15:30] <Jordan__> are they the same price archivist or double
[13:16:03] <archivist> to get a price I would have to google or quote!
[13:16:24] <Jordan__> i have they are all expensive
[13:16:41] <pfred1> I just got a computer for a buck
[13:16:54] <Jymmm> pfred1: you paid too much
[13:17:13] <pfred1> Jymmm maybe it needs a new power supply and something is wrong with the on board video too
[13:17:32] <pfred1> but other than that it runs great!
[13:17:53] <pfred1> it is a HP Pavilion a6712f Desktop
[13:18:19] <pfred1> 6 Gb RAM 500 GB SATA drive 2.5GHz dual core CPU
[13:19:22] <pfred1> whoever had it before me thought the motherboard was fried and I guess it kind of is being as the on board video doesn't work I think it is a bad solder joint on the connector though
[13:19:40] <Jymmm> pfred1: Well, if you're happy with it CONGRATS!
[13:19:58] <pfred1> Jymmm for a buck? the HDD in it has to be worth $30
[13:20:20] <pfred1> these mobos are going for like $83 online now
[13:20:41] <Jymmm> 500GB, ok that works. Just be sure to wipe it in case any virus/malware.
[13:21:17] <pfred1> oh its getting Linux on it
[13:21:24] * pfred1 doesn't do Windows
[13:21:43] <joe9> pfred1: that is a good deal.
[13:21:45] <pcw__> best antivirus
[13:21:48] <pfred1> right now it is running Vista something or other I'm just checking how it works
[13:21:56] <Jymmm> pfred1: HP/Compaq has lots of hidden partitions, just wpipe the drive in advance wold be my recommendation
[13:22:12] <pfred1> yeah I see it has a hidden partition for Windows backup on it
[13:22:23] * pfred1 wants the full 500 GB he paid for!
[13:22:51] <pfred1> I need to buy a power supply I swiped one off my other machine just to see if it worked or not
[13:22:56] <Jymmm> Might be more than one hidden partition
[13:23:11] <Jymmm> a backup and a restore
[13:23:16] <pfred1> Linux fdisk should be able to figure it out
[13:23:43] <pfred1> initially when I hit the power button it was totally dead no fans no nothing
[13:24:36] <pfred1> but the PSU that was in it has a 20 pin ATX connector and the mobo has a 24 pin and I found it without the add in 4 pin connector in the main power
[13:24:46] <pfred1> but it wouldn't work like that with my PSU either
[13:25:05] <pfred1> so I don't know what is up with all of that
[13:25:25] <pfred1> but that PSU it came with is fried anyways I found a bulging cap in it
[13:25:55] <pfred1> it isn't worth me fixing it either all the caps in it are TEAPO brand
[13:26:04] <Jymmm> Also, I think HP might be playing that switch the pins on the PS around, you need to verify first before replacing it.
[13:26:04] <pfred1> TEAPO is Chinese for Cheapo
[13:26:29] <pfred1> well I'm running it onw with a generic coolermaster PSU out of one of my other machines
[13:26:37] <Jymmm> k
[13:26:39] <pfred1> it is running like a champ too
[13:26:53] <pfred1> but it ain't keeping it
[13:27:10] <pfred1> unless I get a nicer PSU for my other machine something I've thought about doing
[13:28:08] <pfred1> I'll have to try LinuxCNC on it but it being Intel I don't hold out a whole lot of hope for it really
[13:28:31] <pfred1> but who knows it might be better than what I have now
[13:28:44] <pfred1> my 1 GHz P3
[13:29:07] <pfred1> I thnk core 2s usually suck for RTAI though
[13:52:46] <pfred1> whoah these crooks want $769.99 for this model PC http://www.pacificgeek.com/product.asp?c=220&s=1519&ID=847245&P=F
[13:57:00] <pcw__> well that includes the valuable Vista license
[13:57:08] <pfred1> pcw__ I got it
[13:57:27] <pfred1> it is running Vista ultimate this that and the other thing right now
[13:58:08] <pfred1> I almost feel bad wiping it out though
[13:58:08] <Jymmm> and of course you haven't tossed an unknown computer on your lan, right?
[13:58:25] <pfred1> Jymmm wouldn't matter all my systems are Linux good luck infecting that
[13:58:45] <pfred1> but no I haven't jacked it in yet
[13:59:06] <Jymmm> pfred1: you keep thinking virus, and not malware.
[14:00:06] <pfred1> I've looked through it best I can tell it was the PC for the senior center I bought it from their sale at and it doesn't have any 3rd party crapware on it
[14:00:32] <pfred1> it has stuff like squaredance.xls files on it and junk no pictures no videos it is really clean
[14:01:17] <pfred1> I looked over the PSU I pulled out of it and I don't think it could have run with it it doesn't have the extra 4 pin jack for the power connector
[14:01:58] <pfred1> but it almost seems like it is the stock PSU too I can't figure it out
[14:02:28] <pcw__> so the PS doesnt have the 4 pin 12V connector?
[14:02:54] <pfred1> it has one but it was plugged in over by the CPU as the CPU power connector but just one
[14:03:14] <pfred1> but it has this stupid LED light on it like HP talks about on their website
[14:03:25] <pfred1> but it doesn't have an HP sticker on it
[14:03:29] <DJ9DJ> namd
[14:04:07] <pfred1> I honestly don't know how the machine could have ever worked with it in it but the PSU also seems burnt out to me
[14:04:22] <pfred1> I mean it had some dust in it so it had to have run for some time
[14:05:44] <pcw__> so maybe the PS just died and they tossed it
[14:06:09] <pfred1> but the system didn't start with my good PSU without that 4 pin in the power connector
[14:06:15] <pfred1> I tried it
[14:06:42] <pcw__> Yeah usually the CPU power comes from that 12V conn
[14:07:31] <pfred1> well there is another jack on the board by the CPU and that was and is hooked up
[14:07:32] <pcw__> maybe they swapped supplies with another dead machine and then gave up
[14:07:56] <pfred1> well it was tywrapped to other wires
[14:08:07] <pfred1> I don't see old folks really tywrapping their wiring
[14:08:40] <pcw__> well a mystery...
[14:08:42] <pfred1> right now its a mess because I want to pull my PSU out of it
[14:09:08] <pfred1> but I didn't want to buy anything for it not knowing if it worked or not
[14:09:28] <pfred1> now that I do I'm kind of motivated though
[14:09:55] <pcw__> well sounds like you could use a spare ATX PS anyway
[14:10:14] <pfred1> there is an app on the desktop that looks like a wristwatch talk about an old people PC
[14:10:54] <Jymmm> pfred1: that's default in vista
[14:10:55] <pfred1> it is called a gadget I just right clicked on it did it come with Vista?
[14:11:02] <Jymmm> it's a widget
[14:11:07] <pcw__> at least it not a pocket watch...
[14:11:27] <pfred1> pcw__ it looks like the face off an old wristwatch
[14:11:50] <pcw__> Never seen Vista (we have XP and 7 at work)
[14:11:53] <pfred1> this is the first time I ever ran Vista I've heard a lot about it
[14:11:58] <pfred1> me either
[14:12:04] <pfred1> it's Windows
[14:12:14] <archivist> its been a while since I took a pocket watch apart
[14:12:31] <pfred1> hey it had some fits and starts starting because it got shut down funky but it seems running OK to me it restored itself now it seems fine
[14:13:22] <pfred1> archivist taking htem apart is easy getting them back together so they run is the hard part
[14:13:41] <archivist> its not too hard
[14:14:19] <archivist> ladies wrist watch are the hard ones
[14:15:51] <pfred1> I do have to try this box out with LinuxCNC though I wonder how it'll do
[14:16:10] <pfred1> I can split the cores dedicate one to the RT process see how that goes
[14:17:03] <pfred1> the motherboard in it is an asus
[14:17:14] <pcw__> The LinuxCNC/Mach control computer Tormach sells uses a dual core intel so its possible
[14:17:16] <Jymmm> O_o
[14:17:39] <pfred1> yeah I've personally not had great luck with asus but some seem to like them
[14:18:13] <pcw__> the Tormach one uses an Intel MB
[14:18:32] <pfred1> I want to get an AMD system and try LinuxCNC on it
[14:18:38] <pfred1> poor AMD they're on the ropes now
[14:18:41] <pcw__> and some low end core-duo (2180?)
[14:18:48] <joe9> i have an amd system on linuxcnc
[14:18:57] <pcw__> AMD has always been on the ropes...
[14:19:08] <pfred1> joe9 AMD seems to perform well
[14:19:22] <joe9> it works. latency around 15us.
[14:19:40] <pfred1> not bad
[14:19:45] <joe9> with a ramdisk for the rootfs
[14:20:02] <joe9> would not work with the pata_amd module though.
[14:21:07] <pfred1> yeah this new box has 6 GB of RAM in it
[14:24:24] <joe9> then, should be a breeze.
[14:24:28] <joe9> what distro?
[14:24:35] <joe9> are you planning on using.
[14:25:03] <archivist> todays "little" gear top left http://www.collection.archivist.info/archive/DJCPD/PD/2012/IMG_1214.JPG
[14:25:37] <Tecan> anyone know a good way to control the pwm for a laser with emc ?
[14:26:01] <pfred1> archivist you're making your own watches?
[14:26:19] <Jymmm> spindle speed control to pwm?
[14:26:27] <Tecan> ya
[14:26:44] <Tecan> do i use gcode for that ?
[14:27:05] <Tecan> kinda new to emc so maybe i need to use it more
[14:27:05] <archivist> pfred1, no, I used to make clock watch parts for customers, and that is a test for a model slot car for someone
[14:27:34] <pfred1> joe9 I'll try the CD image
[14:27:43] <Tecan> i could probably use a unused pin for that ?
[14:27:52] <Tecan> or do i need to take up the whole axis
[14:28:31] <joe9> pfred1: let me know how that goes.
[14:28:37] <pfred1> everyone says nvidia is pretty bad for LinuxCNC is that a fair acessment?
[14:29:15] <pfred1> joe9 my p3 I setup a custom Debian Lenny build for it didn't really help my latency out much if at all
[14:29:50] <pcw__> I think the open source NV driver is suggested
[14:30:01] <pfred1> I figure when I order a PSU I might as well get some kind of video card
[14:30:17] <pfred1> I have a really junky ATI running right now but I hate ATI
[14:30:46] <pfred1> I never have any good luck with their stuff
[14:31:15] <joe9> pfred1: my custom build helped with latency.
[14:31:27] <joe9> it depends on what you are looking for, i guess.
[14:31:40] <pfred1> joe9 mine may have as far as average times go but it still can spike the same
[14:32:07] <pfred1> just the spikes come a lot further apart
[14:32:14] <pfred1> I mean a whole lot
[14:32:30] <joe9> mine has no spikes. I was able to figure out (i think) that the spikes were coming from random disk access.
[14:32:45] <pfred1> to the point where I can sort of get away running the lower number
[14:32:46] <joe9> once, I removed the disk stuff, i do not see any spikes.
[14:33:04] <pfred1> might be disk access
[14:33:08] <joe9> but, i also spent more than a week or so getting to that point.
[14:33:24] <pfred1> joe9 the RAM went sour in that box and I was running X with 22 MB of RAM
[14:33:45] <pfred1> it wasn't running bad either until I tried to start up iceweasel
[14:34:14] <pfred1> then I was like boy this seems awfully laggy today I wonder what is going on ....
[14:34:42] <pfred1> I ran htop saw 22 MB total RAM and was like ah ha!
[14:35:19] <pfred1> changed out the RAM module and was back in business
[14:35:59] <pfred1> but just it running on 22 MB RAM suggests to me it is a pretty small memory footprint
[14:36:33] <pfred1> that box has a 512MB RAM limit due to the chipset on the mobo
[14:36:54] <pfred1> it just can't address any more I guess
[14:37:22] <Jymmm> For anyone wanting to build an EMBEDDED controller in older hardware (DOM have better reliability than usb sticks) http://www.suntekstore.com/goods-10010120-4gb_disk_on_module_40_pin-_ide_industrial_mlc_flash_dom_ssd.html
[14:39:00] <pfred1> oh nice it'd be too tight a squeeze for me though I mean I could do it but it'd be more work than I like to do
[14:39:03] <pfred1> I need about 6 GB
[14:39:19] <pfred1> 4 just a little too little
[14:42:43] <Tecan> http://maps.google.com/?t=8&utm_campaign=8bit&utm_source=yt
[14:50:19] <joe9> the gecko g540 manual says that it can provide only 3.5Amp. whereas my motor is rated at 4.2 Amps.
[14:50:34] <joe9> that makes it running at 83% torque.
[14:50:40] <joe9> is that a very bad idea?
[14:50:53] <joe9> should I be looking at exchanging the motors?
[14:52:41] <pcw__> unless you save some money I would not worry about it
[14:52:53] <joe9> no, it is more expensive.
[14:53:06] <joe9> the ones I have are $39 and the others are at $48
[14:53:14] <joe9> not a lot, but, a little expensive.
[14:53:28] <joe9> and, adding in the mailing fees and all that, I probably end up losing.
[14:53:32] <pcw__> I'd stick with what you have
[14:54:51] <joe9> ok, thanks.
[14:56:52] <joe9> pcw__: do you know of any place to buy IEC inlet's locally such as a homedepot oslt.
[14:57:14] <joe9> do not want to wait till they arrive, just want to pick something up.
[14:58:34] <pcw__> steal from a bad PC PS?
[14:59:22] <joe9> actually, pretty smart.
[14:59:35] <joe9> i have a few lying around. thanks, did not even think of it.
[15:00:45] <pcw__> Be careful if you have powered them up recently- they bite!
[15:00:47] <joe9> pcw__: brilliant, man. I already found one.
[15:01:07] <joe9> you mean the bad psu's?
[15:04:22] <pcw__> they have ~320V on the input caps so need some discharge time to be safe
[15:05:44] <pfred1> pcw__ a lot of designs bleed the HV caps
[15:06:17] <pcw__> Yeah just be care if you test for bad then immediately dissasemble
[15:06:27] <pcw__> careful
[15:06:44] <pfred1> yeah i like to give the caps some time myself
[15:08:56] <joe9> ok, thanks. haven't used those psu's in a while.
[15:09:01] <joe9> so, I am good on that front.
[15:09:09] <pfred1> yeah they're probably deader than a doornail
[15:09:20] <pfred1> some of those connectors have built in fuses
[15:09:25] <pfred1> something to look out for
[15:09:36] <pfred1> hard to spot when they do too
[15:13:15] <joe9> pfred1: ok, thanks.
[15:13:49] <DJ9DJ> gn8
[15:16:24] <joe9> what is the use of the "relay power supply" and the "vfd drive" of the g540. is it ok to not have them?
[15:35:13] <joe9> alex4nder: did you hook up the taig vfd to the g540?
[15:35:34] <joe9> alex4nder: what did you do for the "relay coil"? is it needed?
[16:46:04] <ctjctj> Does anybody have a source for a *.ngc icon?
[16:47:52] <JT-Shop> what is a "*.ngc icon"
[16:49:17] <ctjctj> A desktop icon to represent that this file is full of gcode
[16:49:32] <ctjctj> Rather than the default "text file" icon that ubuntu shows.
[16:51:36] <JT-Shop> ah I see
[16:52:51] <JT-Shop> don't know if I've ever seen one
[16:53:31] <ctjctj> Yep. Sort of where I'm at right now.
[16:56:56] <JT-Shop> hi guys, I've been busy http://imagebin.org/206211
[16:58:01] <ctjctj> pretty 4 pounder cartage but not a good icon. *GRIN*
[17:01:33] <ssi> JT-Shop: that looks like fun
[17:06:53] <Tecan> what would i put for driver microstepping if its 1/8
[17:06:56] <Tecan> 2 it half
[17:07:01] <Tecan> is*
[17:11:11] <ssi> if I had to guess... I'd guess... 8
[17:15:51] <JT-Shop> ssi: yep
[17:18:11] <ssi> so I'm gonna try to get some surface finish out of my lathe
[17:25:01] <ve7it> Jymmm, http://www.flickr.com/photos/64111811@N00/ check link on sub photos.... sailed right past our place a few days ago... test range is about 5 miles away
[17:28:19] <Jymmm> ve7it: Wiat, WHUUUUUUUUUUUUUUUUT?1 Canucks have a Navy? And a sub too?! No canoes????
[17:30:32] <Jymmm> ve7it: whale skin canoe at that! Very cool, I'm kinda surprised they stayed topside outside of port as most go stealth as much as possible.
[17:31:00] <Jymmm> ve7it: Was there a destroyer too by chance?
[17:32:33] <ve7it> yup... scroll back through pix (about 5)
[17:32:59] <Jymmm> ve7it: so there was a destroyer near by too?
[17:33:35] <ve7it> http://www.flickr.com/photos/64111811@N00/6887080976/in/photostream and a tender
[17:34:45] <Jymmm> ve7it: Heh, almost ALL destroyers have a "ghost" sub tailing them. But they are not in comms with them or know their location.
[17:34:53] <ve7it> they did a crew change ... about 15 sailors were on deck at once
[17:35:52] <ve7it> I think this was more like a rescue ship in case the sub sank.... it was British surplus... the Canucks added new batteries :}
[17:36:06] <Jymmm> ve7it: Yeah, on a sub you eat LOTS of lobster, gets old after a while.
[17:36:34] <Jymmm> ve7it: Canucks have bateries now too? I thought it was all whale blubber oil lamps and such.
[17:37:53] <ve7it> what is the fun of non exploding torpedoes? We have some tsunami junk offshore that needs a torpedo
[17:38:11] <Jymmm> heh
[17:38:26] <Jymmm> ve7it: Hey, what HT do you have?
[17:40:04] <ve7it> many... IC-02AT IC-4AT IC-W32A and a couple of converted commercial jobs
[17:40:25] <Jymmm> ve7it: Have you opened up Tx on any of them?
[17:40:38] <Jymmm> ve7it: beyond MARS
[17:45:21] <ve7it> most cover a pretty broad range... what did you need?
[17:45:48] <Jymmm> ve7it: DC to Daylight, but that's only in my wet dreams.
[17:46:46] <ve7it> should be tons of older commercial stuff on ebay ... narrow banding has to be done by 2013, but hams probably wont change from the current channel spacing
[17:47:11] <Jymmm> ve7it: I hvae a TH-D7ag and I can be opened from 137-174, but the partial service manual speaks of "relaignment" and I think it's firmware settings based, not tweeking chokes.
[17:47:56] <Jymmm> ve7it: Does that make sense in a rig such as this?
[17:48:13] <ve7it> a lot of handhelds cover about 10Mhz well and need the filters tweaked for beyond that
[17:48:14] <Jymmm> ve7it: I dont want to fry anything is my biggest issue.
[17:48:41] <ve7it> buy a signal generator
[17:48:44] <Jymmm> ve7it: oh, filters. ok that makes sense. though I have nfc there
[17:48:55] <raynerd> know I`m being a dumb ass here but what are my steps per mm with a 200 step/rev, 1/2 stepping with a 2mm lead screw?
[17:49:22] <raynerd> I thought it was 200 x 0.5 = 400 divided by 2 = 200s steps per mm
[17:49:25] <Jymmm> 200 * 2 * 2 =
[17:49:55] <ve7it> 200*2 / 2
[17:50:02] <raynerd> just getting that into my head then..
[17:50:10] <raynerd> yes, ve7it - that is what I thought
[17:50:36] <raynerd> I`m doing 400 steps per revolution but one rev takes me 2mm, so 1mm would be 200 steps.
[17:50:50] <Jymmm> ve7it: Ok, so filtering WHAT in TRANSMIT? Rx I get, but not Tx filtering.
[17:50:58] <Jymmm> ve7it: harmonics?
[17:51:56] <ve7it> tx filter is probably just a low pass, so no tweaking required... but circuit will have been designed for some optimum range
[17:52:27] <ve7it> anything outside of spec'd range is a crap shoot
[17:53:11] <Jymmm> ve7it: Ok, Now to find/make an antenna for it!
[17:53:45] <Jymmm> ve7it: dual band 2m/40cm opened Tx on both
[17:55:30] <Jymmm> ve7it: I do wish the darn thing had Rx down to 88MHz though.
[17:56:22] <ve7it> some of the little Chinese radios rx down there ... about $50
[17:56:51] <Jymmm> ve7it: Well, I'm tryign to reduce the weight/load count. thus the opened HT.
[17:57:03] <Jymmm> should the need arise.
[17:57:32] <Jymmm> ve7it: SAR, RC, USFS, etc
[17:57:37] <ve7it> http://www.ebay.com/itm/BAOFENG-UV-3R-VHF-UHF-136-174-400-470-DUAL-BAND-RADIO-/220770096334
[17:58:39] <Jymmm> ve7it: 2W ARE YOU NUTS?! lol
[17:58:43] <ve7it> lots of local guys using these.... no dtmf pad, but very easy to pack around and the price is awesome
[17:59:05] <ve7it> 2W is lots for local repeaters
[17:59:30] <Jymmm> ve7it: Sure, for LOCAL work. Not simplex.
[17:59:39] <raynerd> anyone tell me what the gcode is to make an axis move the x axis move just 1 unit?
[18:00:26] <raynerd> an axis = x axis for example! sorry, wasn`t very clear!
[18:01:26] <ve7it> if you are at x=0 then g0 x1
[18:01:42] <ve7it> or g0 x-1
[18:01:42] <Jordan__> what are some cheap plastic options for bearings?
[18:01:46] <Tom_itx> one unit of what?
[18:02:03] <Tom_itx> g1 x .000001
[18:02:26] <raynerd> ok... sorry, just 1mm
[18:02:28] <ve7it> units will be whatever you calibrated in... mm, inches, furlongs,
[18:02:43] <Jymmm> ve7it: parsecs?
[18:04:30] <Jordan__> for bearing system, what is the best plastic?
[18:04:34] <Jordan__> what's the cheapest?
[18:05:19] <Jymmm> Jordan__: why plastic bearings?
[18:05:34] <Jordan__> well it's for a drive screw
[18:05:59] <Jordan__> is plastic no good?
[18:06:04] <Jymmm> you mean end bearings?
[18:06:56] <Jymmm> REAL end bearings are cheap enough, and you could even use skat bearsings if you had to.
[18:06:59] <Jymmm> skate
[18:07:07] <Jymmm> they come in different sizes
[18:07:13] <Jordan__> for drive screw?
[18:07:16] <raynerd> ahhhh!! thankyou for the gcode, but I`m only moving 0.5mm with that!!!
[18:07:36] <Jordan__> k Jymmm what about the nut?
[18:10:05] <raynerd> I`m confused.. g0 x1 is only giving me 0.5mm of movement, yet I`m half stepping, 200 step/rev with 2mm leadscrew and steps per unit set to 200!
[18:17:20] <Jordan__> well looks like UHMW is the cheapest
[18:21:04] <Jordan__> and very nice properties
[18:23:10] <kb8wmc> Jordan__: I have used HDPE for end bearings with 1/2-10 drive screw
[18:23:44] <Jordan__> i'm looking something for the nut
[18:23:55] <Jordan__> i just want a big suare block
[18:24:05] <Jordan__> that i can fasten stuff to
[18:24:18] <kb8wmc> rgr....I have also made nut out of HDPE
[18:24:33] <Jordan__> is hdpe cheaper or something
[18:24:40] <Jordan__> i don't think it would be as good as UHMW
[18:24:56] <kb8wmc> it is something I had laying around in a bin
[18:25:02] <ssi> isn't hdpe just a particular type of uhmw?
[18:25:25] <Jordan__> UHMWPE is synthesized from monomer of ethylene, which are bonded together to form ultra-high-molecular-weight polyethylene (or UHMWPE). These are molecules of polyethylene that are several orders of magnitude longer than familiar high-density polyethylene due to a synthesis process based on metallocene catalysts.
[18:25:37] <kb8wmc> ssi: yes, a higher coefficiaent of friction
[18:25:51] <Jordan__> they aren't the same
[18:25:58] <Jordan__> UHMWPE that is
[18:26:15] <kb8wmc> no, they have very similar properties
[18:26:30] <Jordan__> hmm well which is better
[18:26:40] <kb8wmc> UHMW and UHMWPE are the same
[18:26:48] <Jordan__> for 1.5" 12x12 sheet is only 45
[18:26:56] <Jordan__> how much is HDPE
[18:27:06] <kb8wmc> I meant HDPE and UMHW have some similarities,
[18:27:22] <Jordan__> but UMHW is better
[18:27:33] <kb8wmc> can't help you with pricing Jordan__
[18:28:05] <Jordan__> well probably cheaper
[18:28:16] <Jordan__> but how much cheaper and how much worse
[18:28:52] <Jordan__> looks like maybe significantly cheaper
[18:30:56] <Jymmm> and do you have the tooling to fabricate whatever plastics you decide to use.
[18:31:04] <Jordan__> no
[18:31:58] <kb8wmc> Jordan__: find a site that provides properties comparison
[18:32:34] <Jordan__> hard to find really thick hdpe
[18:33:07] <Jordan__> and it actually doesn't look that much cheaper if any
[18:33:20] <kb8wmc> check with ALRO I believe they carry 'plastic' materials also
[18:33:34] <Jordan__> http://www.professionalplastics.com/HDPESHEETSRODS
[18:33:43] <Jordan__> not too bad $40 for 1.5" 12x12
[18:33:55] <Jordan__> but that's close to the 45 i saw at onlinemetals
[18:34:02] <Jordan__> for UHMW
[18:36:08] <kb8wmc> http://www.alro.com/divplastics/PlasticsProduct_Polyethylene.aspx
[18:37:16] <Jordan__> not interested if they don't give a price
[18:37:26] <kb8wmc> it seems ALRO stocks PE up to 5 inches thick
[18:37:34] <kb8wmc> ok
[18:38:01] <Jordan__> i'm rewarding companies that actually can give you a price
[18:38:46] <kb8wmc> I remember I called the most local ALRO supplier for pricing....
[18:39:53] <Jordan__> ok at the professionalplastics.com is 47 for UHMW and 40 for HDPE
[18:40:44] <Jordan__> if they don't give a price i consider it a sales pitch game and not interested
[18:41:25] <Jordan__> so only minimally more expensive but i the UHMW is better
[18:47:27] <Jordan__> well i could always try both
[18:47:44] <Jordan__> this site is saying HDPE is better for machining
[18:49:23] <Jordan__> this site says UHMW is much better...
[18:50:29] <Jordan__> http://www.machinist-materials.com/comparison_table_for_plastics.htm here we go a nice little chart
[18:52:31] <Jordan__> what about teflon
[18:53:18] <ssi> anyone know how I can convince linuxcnc to not stop the spindle for toolchanges?
[18:53:44] <ssi> I already have TOOLCHANGE_WITH_SPINDLE_ON = 1
[18:54:03] <Jordan__> my god teflon is expensive
[18:54:09] <Jordan__> like 7k
[18:54:39] <Jordan__> you can keep your teflon
[19:00:56] <alex4nder> hey
[19:01:11] <Jordan__> what tools do you need to tap the plastic?
[19:01:12] <alex4nder> joe9: there's no VFD on my taig
[19:01:27] <alex4nder> joe9: and I'm just using the stock 'lightswitch' to control the spindle.
[19:01:47] <joe9> alex4nder: what did you for the "relay control"? the stock "lightswitch"? do i need that?
[19:02:04] <alex4nder> well how do you want to control power to the spindle?
[19:04:18] <joe9> i did not know I had to do that. will use a light switch for that? is that in place of the "relay control" mentioned in the g540 spec?
[19:04:24] <kb8wmc> Jordan__: I have used standard taps in the past....only tapped 1/4-20 and 5/16
[19:04:53] <alex4nder> joe9: don't you have the mill in front of you?
[19:05:03] <joe9> yes, I do.
[19:05:05] <Jordan__> but is it going to have play in it? Do you need expensive equipment to do it right?
[19:05:14] <alex4nder> joe9: there's a light switch on the side of the mill column
[19:05:21] <alex4nder> by default the spindle is wired to plug into that
[19:05:35] <joe9> oh, ok.
[19:05:38] <Jordan__> kb8wmc, ^
[19:05:49] <kb8wmc> yes
[19:06:02] <raynerd> sorry, know I mither like hell but why if you asked a machine to draw two concentric circles and they overlap, what could have caused that issue?? I`m ripping my hear out...
[19:06:04] <alex4nder> joe9: you don't need to wire spindle control into the G540.. I haven't.. but I plan to eventually.
[19:06:05] <Jordan__> what kind of equipment?
[19:06:25] <joe9> alex4nder: what about the "relay control" mentioned in the g540. Do I need that?
[19:06:42] <alex4nder> joe9: if you want to control a relay
[19:07:02] <joe9> alex4nder: i do not even know what a "relay" is. will google up on that.
[19:07:05] <Jordan__> kb8wmc, is it possible to pour it right on the screw and cast mold it like that?
[19:07:09] <kb8wmc> I tapped them to join other pieces of HDPE together
[19:07:10] <raynerd> the axis seem to be moving fine, but they seem to be out of sync!
[19:07:11] <joe9> so, I guess "no" then.
[19:07:25] <joe9> alex4nder: i was not sure if it was some kind of necessary stuff.
[19:07:27] <kb8wmc> I don't know on that Jordan
[19:07:51] <Jordan__> that would be awesome if you could
[19:09:04] <raynerd> :(
[19:14:52] <Jordan__> yea you can't cast HDPE or UHMW
[19:17:18] <Jymmm> I don't know about "cast", but you CAN mold inject HDPE.
[19:17:52] <Jordan__> i don't have mold injector
[19:18:47] <Jordan__> is there something i could cast that would be comparable to HDPE or UHMW
[19:22:17] <Jymmm> ve7it: This looks like a better deal; more power, USB programming cable/sw included, and Rx down to 65MHz http://www.ebay.com/itm/New-Version-UV-5R-Dual-Feq-UHF-VHF-Radio-DTMF-USB-Prog-Cable-software-CD-/220976649582?pt=LH_DefaultDomain_0&hash=item33733c156e
[19:53:48] <ve7it> Jymmm, YES... those look like a great deal
[19:54:08] <Jymmm> ve7it: http://UV-5R.com/
[19:54:38] <Jymmm> ve7it: I wonder if I could use one as a half-duplex repeater in an emergency?
[19:56:22] <Jymmm> ve7it: My TM-D700 I can use as a repeater less the CWID if I wanted to.
[19:56:43] <ve7it> oh an... I'm knackered.... just outside mixing wheelbarrows of concrete... building boat lift
[19:57:28] <Jymmm> ve7it: LOL, better you than me! I'd higher the neighbor kids to do that!
[19:59:26] <Jordan__> i want to tap some plastic for acme screw is it going to be high enough precision by hand tap?
[20:00:09] <Jymmm> be specific, plastic could be silly putty, they are all just polymers.
[20:00:40] <Jordan__> well UHME or HDPE or Acetal
[20:00:46] <Jordan__> UHMW*
[20:04:42] <Jordan__> 230 for a tap?
[20:04:50] <Jordan__> i'll make my own
[20:06:39] <Jymmm> Jordan__: I SERIOUSLY have no fucking idea why you are so set on using plastics, when real metal parts are not that much more expensive, but whatever... http://www.embeddedtronics.com/acmetap.html
[20:23:03] <Nick001> ssi - are you around?
[20:41:27] <ssi> Nick001: yeah
[20:45:32] <Tecan> oops i missed my answer
[20:45:42] <Tecan> what would i put for driver microstepping if its 1/8 2 is half step
[20:46:03] <Jymmm> 8
[20:46:08] <Tecan> thanks
[20:46:17] <Tecan> you should see my hack job on the laser cutter
[20:46:24] <Tecan> 2x4's and osb
[20:46:28] <Jymmm> pic?
[20:46:34] <Tecan> comming in a bit
[20:46:45] <Jymmm> I'd have done MDF instead
[20:46:51] <Tecan> brb i'll take on on the phone
[20:46:55] <Jymmm> k
[20:48:23] <Nick001> is the spidle still stopping?
[20:48:31] <Nick001> spindle
[20:48:38] <ssi> Nick001: yeah
[20:48:56] <ssi> Nick001: I'm assuming you mean on toolchange; what I asked about earlier
[20:49:12] <Nick001> do you have manual change lines in a hal or load file?
[20:49:23] <ssi> I have stuff set up for the turret
[20:49:32] <Nick001> plc?
[20:49:53] <ssi> yeah
[20:49:56] <ssi> I cribbed it from JT
[20:50:01] <ssi> I don't actually understand classicladder yet :)
[20:50:06] <Nick001> me too
[20:50:07] <ssi> but the toolchange itself works great
[20:50:10] <ssi> it just stops the spindle
[20:50:30] <Tecan> here it comes lol
[20:50:37] <Tecan> http://i.imgur.com/fmHHP.jpg
[20:50:42] <Nick001> mine skips because I need a dwell on the stop selenoid
[20:51:42] <Jymmm> Tecan: That's not OSB, that's melamine but the pic is fuzzy.
[20:51:57] <ssi> yea looks like melamine to me too
[20:51:58] <Nick001> when you open emc, does a window comes up about tool changong and then disappears
[20:52:05] <ssi> Nick001: don't think so
[20:52:11] <ssi> Nick001: my little lathe with manual toolchange does that
[20:52:21] <Tecan> nothing is measured lol
[20:52:40] <Jymmm> Tecan: You could have gone with angled aluminum instead of the 2x4's though =)
[20:52:43] <Tecan> its level tho
[20:52:46] <Nick001> but how about the hardinge?
[20:53:02] <ssi> Nick001: the hardinge does not have the popup
[20:53:57] <Nick001> I had to eliminate those lines to get the spindle to keep running
[20:54:34] <ssi> I commented out all the stock lines about manual toolchange
[20:55:43] <Nick001> then someting's still in there causing it - rebooted the computer?
[20:56:03] <ssi> haha haven't tried that particular tactic
[20:56:14] <ssi> it's likely been rebooted since the toolchange was setup thought
[20:56:56] <Nick001> I would think so unless you just leave it on -)
[20:57:20] <ssi> right now I do leave it on, but I setup toolchanging before I righted the control cabinet, and it definitely came down for that
[20:57:57] <Nick001> maybe duplicate lines in another file the emc is looking at
[20:58:17] <ssi> which lines
[20:59:14] <Nick001> don't remember - not at the shop right now
[20:59:39] <Nick001> does a box come up when the spindle stops?
[20:59:56] <ssi> no
[21:00:51] <Nick001> is that the exact line? TOOLCHANGE_WITH_SPINDLE_ON = 1
[21:01:17] <ssi> TOOLCHANGE_WITH_SPINDLE_ON = 1
[21:01:21] <ssi> copied and pasted
[21:01:29] <ssi> I'm reading through the wiki article on toolchanging now
[21:01:49] <Nick001> try it without the spaces around =
[21:02:18] <ssi> there's no way that can be the problem, everything else in the ini has spaces
[21:02:21] <Nick001> and macke sure about caps and such
[21:02:29] <Nick001> make
[21:02:34] <ssi> I'm trying to find documentation about that particular feature, and I can't find it
[21:02:46] <ssi> also I had a RANDOM_TOOLCHANGER = 1 in there, but I think that's wrong
[21:02:47] <Nick001> thats always
[21:02:48] <ssi> it's not a random toolchanger
[21:02:59] <ssi> so I commented that out thinking that might fix it, and it didn't
[21:03:03] <ssi> might need to add it back but set it to 0
[21:04:14] <Tecan> i have some micro switches here but i think their backwards
[21:04:26] <Nick001> are you using 2.3?
[21:04:29] <ssi> 2.5
[21:04:30] <Tecan> can either version be used ?
[21:04:33] <Nick001> 2.5
[21:04:43] <ssi> need to be on 2.5 for the resolver stuff
[21:04:46] <Tecan> push for off let go for on
[21:04:52] <Nick001> Ok - looking it up
[21:05:06] <Tecan> wait no the other way around
[21:05:15] <Tecan> push for on let go for off like a fridge door
[21:05:25] <ssi> you want Normally Closed for limit switches or anything in the estop chain
[21:05:30] <ssi> which is "pussh for off"
[21:05:40] <Tecan> yeah
[21:05:49] <Tecan> confused myself
[21:05:55] <Tecan> those are the ones you want ?
[21:06:21] <Tecan> to connect to the unused io pins like pin 10
[21:06:54] <Tecan> can be inverted so either will work good ?
[21:07:10] <Tecan> i just dont want to fry my printer port
[21:07:33] <ssi> optoisolated breakout boards are your friend :)
[21:10:20] <Tecan> will a printer port like 24 volts ?
[21:10:32] <ssi> prorably not
[21:10:40] <Tecan> 0-5 then i guess
[21:11:31] <Nick001> <ssi> Try TOOL_CHANGE_WITH_SPINDLE_ON = 1 this is whats in my ini file. Found it on my stick
[21:11:48] <Nick001> TOOL_CHANGE_WITH_SPINDLE_ON = 1
[21:11:52] <ssi> interesting
[21:12:13] <ssi> ok I'll try that
[21:12:15] <ssi> one sec
[21:14:35] <ssi> Nick001: that did it thanks :)
[21:14:55] <Tecan> if i leave 5 volts on pin 10 of my board will it hurt anything ?
[21:15:55] <Nick001> -)
[21:19:40] <Tecan> high is suposed to be off right ?
[21:25:58] <Tecan> oh i see its already 5 v its active low
[21:33:25] <Jymmm> Anyone need a PCB spindle? http://www.suntekstore.com/goods-14002557-12v_small_pcb_drill_press_drilling_with_08mm_drill.html
[21:34:14] <djdelorie> that's a huge drill bit for PCBs...
[21:34:42] <djdelorie> well, *my* pcbs...
[21:34:45] <Jymmm> huge motor too
[21:35:27] <djdelorie> I've yet to test my 1/8" air spindle with actually drilling PCBs though
[21:36:29] <Jymmm> GIT ER DONE!
[21:37:35] * djdelorie can only do twelve things at a time...
[21:38:15] <Jymmm> djdelorie: then stop looking at pr0n and you'll have a slot available.
[21:38:42] <djdelorie> I spent the last two days working on restoring a 1922 South Bend lathe, and adding a USB interface to my oscilloscope
[21:39:08] <Jymmm> well, ARE YA DONE YET?
[21:39:14] <djdelorie> never!
[21:43:39] <djdelorie> hey - anyone know of a converter from excellon drill format to linuxCNC format? They're both "g-code" but not the same
[21:44:09] <djdelorie> (if not, I'll probably write a perl script or something)
[21:44:14] <djdelorie> (eventually ;)
[21:46:39] <CareBear\> dj : how flexible is pcb on the output?
[21:46:56] <djdelorie> it's C source, it can do pretty much anything if you don't mind a recompile, or a plugin
[21:47:04] <CareBear\> this I know
[21:47:26] <CareBear\> I'm thinking convenient data structures internally
[21:47:49] <djdelorie> the actual gerber drill file has no options, though, it's always the same
[21:47:57] <djdelorie> if you're writing a plugin, just use the ALLPIN_LOOP macro
[21:48:11] <CareBear\> and xy are right there?
[21:48:13] <djdelorie> er, then VIA_LOOP
[21:48:19] <djdelorie> yup
[21:48:24] <CareBear\> too easy
[21:48:45] <djdelorie> yeah, *that* part is easy. Deciding how you want to interact with the machine, especially for tool changes, is harder
[21:49:11] <CareBear\> sure
[21:49:23] <djdelorie> I was hoping someone already worked out the details
[21:49:56] <CareBear\> I wrote a program to generate robot arm control programs from nc files
[21:50:47] <CareBear\> fun and all, but not much more
[21:51:18] <djdelorie> I'll probably have to have the machine carve a vacuum hold-down jig, too
[21:52:57] <Tecan> im getting RTAPI ERROR message only displayed once per session
[21:53:06] <Tecan> was it because i updated ubuntu ?
[21:54:39] <ssi> well shit
[21:54:44] <ssi> hardinge is out of commission for awhile :(
[22:05:16] <Tecan> what are some good numbers for hal latency test ? im getting 5886 on servo thread and 13281 on base thread max jitter
[22:06:18] <Nick001> put the screwdriver away -(
[22:06:32] <ssi> Nick001: broke a resolver coupling :(
[22:06:32] <Tecan> ouch it jumped up to 25551 and 30990
[22:07:12] <Tecan> oh i see you have to put those numbers into the config
[22:07:16] <ssi> can't wait to find out how much this is going to cost me
[22:07:20] <Nick001> ouch - but's that's a little hard to do
[22:07:36] <ssi> I'm not entirely sure what causes it
[22:07:41] <ssi> but I suspect high accel
[22:07:59] <ssi> I was working on tuning, and I added a little bit of D term, and I think it accelerated really hard and broke the coupling
[22:08:07] <ssi> the little nickel bellows type coupling
[22:08:07] <Nick001> i thought you were at 180'
[22:08:12] <ssi> I am at 180
[22:08:30] <ssi> but if it oscillates really hard, there can be some pretty high accelerations
[22:08:51] <Nick001> would accel go over 180 '
[22:09:09] <ssi> doesn't have to
[22:09:31] <Nick001> those things are kindof tuff little guys till you put pliers to them
[22:09:59] <ssi> I found a similar part on mcmaster, and it's rated 6.1 in-lbs peak torque
[22:11:31] <Nick001> stil might be cheaper than Hardinge - If enough diff - worth a try
[22:11:37] <ssi> mcmaster part is $70
[22:11:48] <ssi> just emailed my contact at Morris about the hardinge part
[22:11:53] <Nick001> wow
[22:12:14] <ssi> yeah, $70 isn't really "worth a try" unless the hardinge part is >$200
[22:12:20] <Nick001> of course happens on the weekend
[22:12:23] <ssi> of course
[22:12:40] <ssi> heh I could solder this one back together :P
[22:12:47] <Nick001> 200 may be a lowball for hardinge
[22:13:15] <Nick001> did it breake at the collar?
[22:13:19] <ssi> yeah
[22:13:41] <ssi> hang on, pic incoming
[22:13:50] <Nick001> than you may well be able to silver solder it back
[22:14:00] <77CAAO2KB> Theoretically there should not be any D term on the control loop of a velocity mode drive
[22:14:00] <ssi> https://p.twimg.com/ApXTsDKCIAAMNpf.jpg:large
[22:14:26] <ssi> 77CAAO2KB: I probably won't try it again :)
[22:14:47] <ssi> 77CAAO2KB: I get a pretty significant swing in error at the start and end of each move... was trying to get rid of it
[22:15:46] <ssi> now I'm pretty mad at myself... likely shut myself down for a week :(
[22:15:58] <Nick001> start filing -) you might be able to do that
[22:16:33] <ssi> ohai PCW, that explains how you knew it was a velocity drive :D
[22:17:12] <ssi> Nick001: the guy that sold me the machine gave me a broken coupler and warned me about them
[22:17:21] <ssi> as soon as the axis went wonky I had a pretty strong suspicion that's what it was
[22:17:29] <ssi> in a way, I'm glad it's the coupler, cause I'd have NO clue what to do otherwise
[22:17:31] <XXPCWXX> Yeah this machine suspends and eats nicks
[22:17:54] <ssi> oh PCW btw, I had a look at my resolver while I had it apart removing the broken coupler
[22:18:03] <ssi> mine definitely also says 12V in, 6V out
[22:18:07] <ssi> same text that's on Nick's
[22:18:30] <XXPCWXX> Did you try 5 or 2.5 KHz?
[22:18:34] <ssi> yeah tried both
[22:18:36] <ssi> same results
[22:18:45] <ssi> 3V rms measured on each return pair
[22:19:28] <XXPCWXX> well thats pretty darn mysterious
[22:19:32] <ssi> isn't it though
[22:19:48] <XXPCWXX> and ~9V P-P on the scope?
[22:19:54] <ssi> yep
[22:20:38] <XXPCWXX> (dont trust meters above 60 Hz unless they are designed for that)
[22:20:53] <ssi> haven't used anything but a tek TDS420
[22:21:07] <ssi> and it'll measure and display waveform RMS onscreen
[22:21:12] <ssi> (or p-p)
[22:21:30] <XXPCWXX> no x10 probe errors?
[22:21:40] <ssi> don't think so!
[22:21:51] <XXPCWXX> weird
[22:22:18] <ssi> well at least I'll be able to try out the HV card when it comes
[22:22:30] <ssi> won't be able to actually run the machine, but I can at least get my spindle feedback working
[22:22:53] <XXPCWXX> you can measure the P-P on each of the drive lines and double to get the RMS in
[22:23:02] <ssi> yeah I've done that as well
[22:23:05] <ssi> it's 2Vrms in
[22:23:25] <ssi> I even got fancy and scoped the two drive phases independently and had the scope subtract them :)
[22:23:33] <XXPCWXX> so ~1.5X
[22:23:51] <ssi> yeah I suppose so
[22:24:27] <ssi> I can't imagine why that doesn't match the nameplate
[22:25:24] <XXPCWXX> any difference at all with the different drive frequencies?
[22:25:28] <ssi> none
[22:25:33] <ssi> just a different frequency waveform back
[22:25:54] <ssi> should I be running them at 2400 cause the nameplate says so?
[22:26:00] <ssi> or is there an advantage to the higher freq
[22:26:30] <XXPCWXX> you lose a little phase margin at the lower frequencies so I would leave it at 9600 Hz
[22:27:19] <ssi> ok
[22:27:24] <XXPCWXX> (because the resolver interface only updates the tracking filter at the carrier rate)
[22:32:33] <XXPCWXX> does the spike when you start motion last for the entire accel phase?
[22:32:44] <XXPCWXX> (error spike)
[22:57:00] <ssi> XXPCWXX: yeah I think I have error during accel and decel, but not during steady state velocity
[22:57:18] <ssi> Nick001: I was able to silver solder the coupler back together... I think it'll work alright until I can get a new one
[22:57:24] <ssi> however I'm not going to try to reinstall it
[22:57:37] <ssi> I'm going to take Peter's advice tonight and not force it when I'm tired :)
[22:58:15] <ssi> not going to try to reinstall it TONIGHT, that is
[23:00:01] <Nick001> take it easy on that acceleration - I forgot about the gears -
[23:00:30] <Nick001> that can be quite a windup at 5-1 ratio
[23:01:27] <Nick001> does this card problem affect the axis positions?
[23:01:43] <ssi> it manifests as noise on the position feedback
[23:02:02] <ssi> and I'm assuming the gears you're talking about are the gears between the screw and the resolver/tach
[23:02:21] <ssi> and the coupler is on the screw side of that reduction, so the coupler sees screw torque at 1:1
[23:02:39] <ssi> (there's also a timing pulley reduction between the servo and the screw)
[23:03:30] <Nick001> the coupling connects the leadscrew to 140t gear and that drives 2 28t gears
[23:03:58] <ssi> right
[23:04:27] <ssi> so there's the inertia of the resolver and tach multiplied by five, and that's the torque load on that coupler
[23:05:46] <Nick001> yes - if you turn it by hand - you'll feel a heavy start and then it lightins up after it gets going
[23:06:08] <ssi> sure
[23:07:14] <Nick001> while its open - now would be a good time to put some moly oil on the gears
[23:07:33] <ssi> anything in particular?
[23:08:00] <Nick001> black slimy stuff in a small bottle -)
[23:08:12] <ssi> how about lubriplate?
[23:08:32] <ssi> we use that on airplanes in lots of areas
[23:08:39] <ssi> like the trim jackscrew drums
[23:08:46] <ssi> cause it stays put forever :)
[23:09:15] <Nick001> it's a black moly oil don't know how to spell it - it's late
[23:10:01] <Nick001> and very light - those 80 dp gearswon't work in anything heavy
[23:10:40] <ssi> might check the bike shop, they usually have good lubricants
[23:10:44] <ssi> that's where I buy triflow for instance
[23:13:21] <ssi> also, since I had the resolver/tach carrier out to remove that coupler
[23:13:28] <ssi> I believe I've lost my home position
[23:13:43] <ssi> I'll have to re-reference everything
[23:14:46] <Nick001> your just using the switches and lost the index position
[23:15:00] <ssi> prox switch moved, index position moved
[23:15:34] <Nick001> sounds like you put it back in
[23:15:44] <ssi> I did, without the coupler
[23:15:53] <ssi> I just didn't want it all hanging out getting full of oil
[23:16:30] <Nick001> no index on the resolver?
[23:17:08] <Nick001> which axis broke?
[23:17:29] <ssi> well the resolver driver generates an index, and the fact that the resolver will be in a different relationship to the screw when it all goes back together means that index will be in some arbitrary position
[23:17:33] <ssi> X
[23:17:49] <ssi> I'm not too worried about it... my home location was arbitrary to begin with
[23:18:04] <ssi> I don't have a really good way to absolutely reference X to the spindle
[23:18:24] <ssi> and each tool slides in its Tslot anyway, so it doesn't really matter all that much
[23:18:40] <ssi> I'm trying to get the lines on the turret aligned with the spindle centerline at machine X=0, but I can't do that with any precision
[23:19:00] <Tecan> mounting motors is harder than i thought
[23:19:03] <Nick001> hardinge had an alignment routine to do that -
[23:19:34] <Nick001> but you turn the resolver unit to do it
[23:20:45] <Nick001> same with z to put the turret face a certain distance from the spindle face
[23:20:47] <ssi> Nick001: yeah I know... I need to read through the maintenance manual again and read about their method
[23:20:52] <ssi> ive just been winging it so far
[23:21:15] <ssi> yeah the Z procedure involves setting it up to be 10.0000" from turret face to spindle face
[23:21:31] <ssi> I don't have a good way to measure 10.0000" :)
[23:23:16] <Nick001> i think 0.500 jo block to spindle nose and set it. dosent matter in emc as the offsets are from home position
[23:23:24] <ssi> right
[23:23:28] <ssi> that's probably what I'll end up doing
[23:23:56] <ssi> btw I have ~0.004" measured backlash in my Z travel
[23:24:04] <Nick001> thats how I've run my first parts and it worked out
[23:24:08] <ssi> measured with a .0005 indicator
[23:24:23] <Nick001> ??
[23:24:35] <Nick001> oh ok
[23:24:37] <ssi> might be related to resolver noise
[23:24:51] <ssi> so I'm not going to compensate it until I get that sorted out
[23:25:02] <Nick001> just do your programing all in one direction
[23:25:13] <ssi> I don't want that limitation :)
[23:25:19] <ssi> backlash compensation in emc works reasonably well
[23:26:05] <Nick001> most turning operations are in the - direction
[23:26:11] <ssi> most
[23:26:13] <ssi> but not all :D
[23:27:15] <Nick001> when backwards turning you go in the + direction with that particular tool
[23:27:25] <ssi> yes
[23:27:30] <ssi> so maybe the backlash won't even matter
[23:27:35] <ssi> and at any rate, it's a small amount
[23:27:37] <ssi> X seems to have none
[23:27:40] <Nick001> and thats really rare situation
[23:28:15] <Nick001> thats beacuse z takes most of the heavy cuts over the years
[23:30:31] <Nick001> also - the end bearings may be wearing
[23:31:41] <ssi> possibly
[23:41:07] <Nick001> vidio of a part http://www.youtube.com/watch?v=EroZ4KtKTp4
[23:44:23] <ssi> what're you making?
[23:45:54] <ssi> I like your comparator
[23:49:03] <Nick001> take the guessing out of tenths
[23:49:10] <ssi> yeah definitely :)
[23:51:40] <Nick001> making a journal type of part with a timing belt pulley - all 1 piece - next vid will show 6mm dia x 1.5 long with 0.0005 tolerance and I hold it within 0.0002
[23:52:14] <Nick001> I even have the oil working
[23:52:31] <ssi> what oil are you using
[23:52:53] <Nick001> omicrom from Mobil
[23:53:10] <Nick001> I use it for gearcutting also
[23:53:25] <ssi> omicron eh
[23:53:30] <ssi> I'm using mobilmet 766
[23:53:52] <ssi> ah omicron is 426, eh
[23:54:03] <ssi> I have a gallon of that that I use out of an oil can for manual work
[23:54:09] <ssi> the 766 is a little heavier and sulfurier
[23:54:29] <Nick001> don't know - just buy it a drum or 2 at a time
[23:54:37] <ssi> 5gal or 55gal?
[23:54:42] <Nick001> 55
[23:54:51] <ssi> it's like a thousand dollars for a drum, yeah?
[23:55:18] <Nick001> bout that - but it works
[23:55:22] <ssi> yea
[23:55:35] <ssi> the 766 that I bought I got from enco for $70/5gal
[23:55:37] <ssi> pretty reasonable
[23:55:56] <frysteev_> ssi: lazzor is hoisted
[23:56:03] <ssi> frysteev_: GUD
[23:56:04] <ssi> pics?
[23:56:07] <Nick001> I stay away from sulfur - stains the machine and smells bad
[23:56:17] <frysteev_> yes, but they are still in the camera
[23:56:27] <frysteev_> im tired spent all day installing an rfid door system
[23:56:31] <ssi> machine's already stained :)
[23:59:17] <Nick001> true - but just don't like the smell - worked with it as a kid along with lard oil - smoked it with heavy cuts on the turret lathes
[23:59:42] <frysteev_> ssi: thats cuz you made luz to it
[23:59:49] <ssi> orite
[23:59:58] <Nick001> and don't want to go back to THAT