#emc | Logs for 2011-05-15

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[00:43:41] <JT-Shop> Connor_CNC: you get your jog working?
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[00:52:27] <Tom_itx> JT-Shop, where do you define your mpg-scale.in0 in your jog file?
[00:52:44] <Tom_itx> i get a not found error
[00:53:20] <Tom_itx> hmm that must be a switch io pin
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[00:59:18] <JT-Shop> hang on a sec I'll look
[01:00:30] <tsingi> One of the reasons why Ubuntu annoys me> "No manual entry for alias"
[01:00:32] <Tom_L> probably a binary value
[01:00:42] <Tom_L> 0..2 defined somewhere
[01:03:17] <JT-Shop> http://gnipsel.com/shop/hardinge/files/mpg.xhtml
[01:04:00] <Tom_L> i've got that but i get an error
[01:04:22] <tsingi> pastebin?
[01:05:23] <Tom_L> well, i haven't defined any io for it yet other than what's in his file
[01:05:29] <Tom_L> and modded it for encoder 0
[01:07:53] <JT-Shop> a couple of lines are missing from my example
[01:09:03] <SWPadnos> tsingi, http://ubuntuforums.org/showthread.php?t=110693
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[01:13:46] <tsingi> SWPadnos: yes, my point is that alias should be installed on all UNIX boxes, as should the man page. I can fix it.
[01:14:24] <tsingi> actually, I thought it was a shell command
[01:14:37] <tsingi> as in part of bash
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[01:17:21] <tsingi> Ahh, I see it is from the link, so my complaint resolves to, where is the fucking man page?
[01:17:46] <JT-Shop> Tom_L: let me update the missing line on my MPG example
[01:17:47] <tsingi> I know, it's not installed, it should be.
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[01:28:13] <jthornton> ok Tom_L its fixed http://gnipsel.com/shop/hardinge/files/mpg.xhtml
[01:28:31] <jthornton> I think :/
[01:28:39] <Tom_L> heh
[01:29:07] <jthornton> I left off some stuff from the top of my .hal file that loads the components
[01:29:12] <Tom_L> just the top lines is all you changed right?
[01:30:00] <jthornton> yes
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[01:56:40] <elmo40> oh damn! this is SWEET!! http://www.youtube.com/watch?v=QGyxnafLbcw
[01:56:52] <elmo40> I wonder what the spindle is.
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[02:07:09] <Tom_L> JT-Shop, your pendant defaults to the Y axis?
[02:08:34] <jthornton> Tom_L: I don't have a pendant...
[02:09:19] <jthornton> my MPG and selector switch default to 0.0001 and off
[02:09:31] <jthornton> its a lathe
[02:10:28] <jthornton> so an axis X or Z has to be selected in order to jog
[02:11:29] <toastydeath> could always link up "y" as C axis
[02:11:50] <jthornton> ??
[02:11:56] <toastydeath> spindle jog
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[02:13:14] <jthornton> but you would have to have the spindle set up as C axis and not a spindle right?
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[02:16:34] <SWPadnos> tsingi, I think you missed the point of that thread. aslias is a bash builtin, so it is (a) available and (b) has no separate manpage
[02:17:08] <SWPadnos> man bash will have a section called SHELL BUILTIN COMMANDS, which will have alias in it (or should anyway)
[02:18:01] <SWPadnos> or, as the second comment in the thread said, "help alias" should give you help on it (though I don't know that for sure, I have never used a help command on Linux)
[02:19:13] <jthornton> hi SWPadnos
[02:19:19] <SWPadnos> hi
[02:19:23] <toastydeath> jthornton, not really, a lot f the lathes i worked on had no C axis but had some method for jogging the spindle at a reasonable speed for setup
[02:19:24] <Tom_L> well that makes more sense then
[02:19:38] <Connor> okay, so, on my pendant.. what would be the most useful commands to be able to issue from my "soft" buttons when in XYZA modes ?
[02:19:47] <SWPadnos> toastydeath, you have worked with lathes with live tooling, haven't you?
[02:19:50] <jthornton> I ordered a duplicate to the SW computer for the shop here
[02:19:52] <toastydeath> SWPadnos, negative
[02:19:59] <SWPadnos> oh, ok
[02:20:13] <SWPadnos> jthornton, cool. it's nice and quick, is it? :)
[02:20:16] <toastydeath> tried to get them to buy one lathe with live tooling for years
[02:20:18] <jthornton> yes
[02:20:21] <toastydeath> never went anywhere
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[02:20:34] <jthornton> toastydeath: I just click on spin the spindle button
[02:20:49] <SWPadnos> I have been using a 6-core Xeon workstation from HP for the last couple of months, and I'm stunned at how slow it is
[02:21:02] <SWPadnos> I don't know how much of that is HP and how much is Windows 7
[02:21:14] <toastydeath> jthornton, do you mean spindle on, or what
[02:21:21] <toastydeath> spindle on != jog spindle
[02:21:29] <SWPadnos> well, I'm headed to bed. night guys
[02:21:30] <toastydeath> jog spindle gives it a slow, momentary turn
[02:21:37] <toastydeath> at maybe 30 rpm
[02:21:38] <jthornton> the main reason I ordered a new one was the floppy header :0
[02:21:54] <toastydeath> so that you can do things like hammer on parts or indicate parts in
[02:22:13] <jthornton> can't think of a reason to jog the spindle under power yet
[02:22:17] <Tom_L> precision machining there
[02:23:13] <jthornton> I just indicate the 4 jaw with the brake off and spin by hand
[02:23:32] <Tom_L> quicker that way
[02:24:07] <jthornton> 99% is collet work on the Hardinge for me
[02:24:41] <toastydeath> i guess it matters more on lathes that don't have a neutral
[02:24:59] <jthornton> mine doesn't have a neutral
[02:25:13] <toastydeath> how big is the chuck
[02:25:18] <jthornton> it's belt drive from the servo
[02:25:24] <toastydeath> ah, same deal
[02:25:25] <jthornton> 8"
[02:25:52] <toastydeath> i am talking about lathes that are belt drive from servo -> transmission -> spindle
[02:25:55] <jthornton> on my engine lathe without a neutral you could not turn it very easy
[02:26:04] <toastydeath> yeah, similar deal
[02:26:32] <jthornton> yea, a jog button would be nice if you don't have the inbetween spot between high and low
[02:26:59] <toastydeath> i still found myself using spindle jog even on direct drive lathes
[02:28:18] <jthornton> mine turns too easy to bother, but a 100rpm button would be nice for filing the burr from a part
[02:29:02] <jthornton> Tom_L: I added a note on the MPG page about the encoder
[02:30:10] <Tom_L> what does the var or2 control?
[02:30:22] <Tom_L> or is that a vr
[02:30:24] <Tom_L> var
[02:30:40] <jthornton> ha, looking now\
[02:30:41] <Tom_L> has to do with setting your scale
[02:31:03] <Tom_L> i'm setting mine up as a 2bit input for a mux
[02:31:09] <Tom_L> on both switches
[02:31:22] <jthornton> yes
[02:31:39] <Tom_L> yes didn't answer that :D
[02:32:03] <jthornton> looks like the or2 is a leftover and not needed
[02:32:22] <Tom_L> so mpg-scale is a bit value
[02:32:30] <Tom_L> depending on it's value sets the scale
[02:33:02] <jthornton> the mux contains the value and the sel of the mux determines the output from the mux
[02:33:10] <Tom_L> controlled by gpio 35..37?
[02:33:24] <jthornton> yes, that is my selector switch inputs
[02:33:35] <Tom_L> so no input is the lowest setting
[02:33:39] <jthornton> yes
[02:33:51] <jthornton> I thought that to be safe
[02:33:58] <Tom_L> you could have 4 values there
[02:34:42] <Tom_L> it's read as a truth table right?
[02:34:56] <Tom_L> 00 01 10 11
[02:35:31] <jthornton> yes, but then you need a special selector switch that has gray code output
[02:35:40] <Tom_L> you do?
[02:35:56] <Tom_L> why not just read the gpio values?
[02:35:59] <jthornton> or the right number of stacked contacts
[02:36:06] <Tom_L> well i'm thinking different than you
[02:36:12] <Tom_L> my input will come from an avr
[02:36:20] <Tom_L> yours is from the switch
[02:36:33] <Tom_L> so i can twiddle the bits easier
[02:36:36] <jthornton> then you have the special gray code selector switch in code
[02:37:09] <jthornton> mine is an AB-800 selector I removed from some scrapped equipment
[02:37:12] * Tom_L gives jt a couple toggle switches
[02:37:45] <jthornton> but I don't want two switches or need more than 3 choices :P
[02:38:15] <Tom_L> ok, i managed to get the right config on this thing (I think) and get your code working with it
[02:38:28] <Tom_L> i had to remap the pins
[02:38:40] <Tom_L> for the gpio
[02:38:40] <jthornton> cool, sorry about leaving the mux out
[02:38:45] <Tom_L> the 5ixx must have more io
[02:39:00] <jthornton> 72
[02:39:09] <jthornton> and 96
[02:39:31] <Tom_L> well this is plenty for what i'm doing
[02:39:44] <jthornton> wow it's 21:40 and I can't believe I'm still up
[02:39:51] <Tom_L> you'd need a special board to read adc wouldn't you?
[02:40:04] <jthornton> yea
[02:40:14] <Tom_L> do they have one?
[02:40:29] <jthornton> they have the THCAD card
[02:40:39] <jthornton> 0-10v and 0-300v
[02:40:59] <Tom_L> not for input
[02:41:13] <jthornton> ?
[02:41:21] <Tom_L> is that input or output?
[02:41:25] <jthornton> input
[02:41:32] <Tom_L> what the heck for?
[02:41:34] <jthornton> freq is the output
[02:41:42] <jthornton> plasma mostly
[02:41:44] <Tom_L> hmm
[02:41:55] <jthornton> but the 0-10 could be for anything really
[02:41:58] <Tom_L> for feedback
[02:42:25] <jthornton> to monitor tip voltage and adjust the arc gap as you cut
[02:43:31] <jthornton> I'm heading up now, talk you later
[02:43:42] <Tom_L> k
[02:43:43] <Tom_L> thanx
[02:44:09] <AC-130U> oh cool
[02:44:15] <AC-130U> http://www.craftsmanshipmuseum.com/jordan.htm
[02:44:20] <AC-130U> 1/5 scale model of a bridgeport
[02:44:24] <AC-130U> does it work? :)
[02:44:48] <AC-130U> ah... yeah it does work
[02:49:18] <tsingi> SWPadnos: everything has a manpage, the alias manpage brings up: BASH_BUILTINS(1) on my work server.
[02:49:54] <tsingi> Which should be installed by default.
[02:50:07] <tsingi> I mean really, it's the shell.
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[03:47:11] <AC-130U> has anyone used gorton mills?
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[04:45:02] <factor> anyone around
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[06:17:04] <Jymmm> not really
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[07:22:23] <Loetmichel> good morning *Jaaaaawn*
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[08:04:15] <archivist> factor, ask the real question
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[10:25:17] <The_Ball> Hi, I just milled some shallow slots in my spindle's main drive pulley: http://wigen.net/workshop/cnc/20110515-2010a_.jpg what do you guys think would be the best pickup, optical or hall-effect?
[10:25:35] <The_Ball> Might be a bit too shallow for hall-effect, but I'm not sure
[10:27:45] <Jymmm> Why didn't you just glue a magnet in there?
[10:29:14] <The_Ball> I want more than 1ppr
[10:29:41] <Jymmm> 2 magnets?
[10:30:09] <The_Ball> Is that enough for rigid tapping?
[10:30:21] <Jymmm> That, *I* don't know
[10:31:13] <The_Ball> These slots are 5 degrees apart / 72 slots, 228 Q4 pulses, that should be enough
[10:31:35] <archivist> use a proper opto disk, I see variation in width
[10:31:49] <The_Ball> s/228/288/g
[10:33:11] <The_Ball> archivist, haven't got any, especially not one that will fit something this large. Does the width matter, the angles are dead right
[10:33:49] <Jymmm> I see... ==//== not ======
[10:34:13] <Jymmm> The_Ball: What is the diameter ?
[10:34:34] <The_Ball> The diameter where I milled the slots is about 160mm
[10:35:03] <The_Ball> I was going to do the most outer disc, but my mill doesn't have enough Y travel
[10:35:37] <The_Ball> Jymmm, what do you mean by "==//== not ======"?
[10:37:48] <Jymmm> The_Ball: How accurate do you want this to be?
[10:38:09] <The_Ball> Not super accurate, just want to be able to do rigid tapping
[10:38:54] <Jymmm> skunkworks: says "You cannot just use the index pulse for rigid tapping (it needs the quadrature signal for knowing the direction the spindle is going). You could just time it out using normal feeds and speeds with floating holders. You need a quadrature encoder + index for real rigid tapping. I have seen as low as 360 line (I would not go any less than that - but too much will limit your spindle tapping speed as the computer needs to be able t
[10:38:54] <Jymmm> o read each transition)."
[10:39:10] <Jymmm> http://www.cnczone.com/forums/emc_linux_enhanced_machine_control/80364-spindle_speed_control_tapping.html
[10:40:00] <Jymmm> http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?Pjm
[10:40:14] <The_Ball> Well I've got a mesa card counting, so over 360 lines wouldn't be a problem, so I'm at 288 lines. Might ask skunkworks how he got to that number (360)
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[10:40:50] <Jymmm> The_Ball: what RPM you have?
[10:40:56] <Jymmm> or plan on tapping at?
[10:41:17] <The_Ball> oh this old thing won't go over 3000, but I would plan to tap at 100rpm or so
[10:42:00] <Jymmm> "...the 360ppr spindle encoder is easily and precisely read when running at the top motor speed of 6000RPM (The 7i43 encoder clock runs at 50MHz!). Rigid tapping was tested in a block of plastic with an M3 tap and was easily done at 1500RPM,..."
[10:42:57] <The_Ball> my spindle acc/dec is the problem, wouldn't readch 1500rpm unless I was tapping through to china
[10:43:38] <Jymmm> So, with that i mind... What you could do is draw up lines and have it printed on PSA plastic strip
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[10:44:25] <Jymmm> PSA == Pressure Sensative Adhesive == double stick tape == carpet tape == glue/epoxy, etc
[10:44:26] <The_Ball> hmm, interesting idea
[10:46:19] <Jymmm> Create the drawing in PostScript on legal overhead tranparency or other plastic that can be printed on a laser printer
[10:47:32] <Jymmm> PostScript is super easy to write by hand and can have super high resolution - someone here created 2000 LPI encoder discs doin it
[10:47:54] <The_Ball> Only worry is the environment is very dirty with the belts, that's why a hall sensor seemed like a very robust solutio
[10:47:59] <Jymmm> I think it was combo disc... 150-4000 lpi
[10:48:34] <Jymmm> ah
[10:48:38] <The_Ball> 2000 lines per inch!?
[10:48:51] <Jymmm> optically
[10:49:07] <The_Ball> yes of course, but that's a good print
[10:49:39] <Jymmm> It's slick what you can do with PS
[10:51:41] <Jymmm> The_Ball: http://www.piclist.com/techref/member/D-Mot-l1/index.htm
[10:51:56] <Jymmm> thats NOT the one I was talking about
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[10:53:29] <KimK> The_Ball: You could fill in the grooves you made with sign-painter's paint, if you wanted to go optical. I'm not sure what kind of hall sensor you'd have to use there to go magnetic or hall. It's not very pronounced, but maybe it would work. Did you cut yourself an index groove? What did you have in mind when you started cutting and why won't that still work?
[10:54:26] <KimK> The optical would be subject to dirt, so magnetic would be better, if you can manage it, but I'm not sure how.
[10:54:28] <The_Ball> I didn't cut a index groove, but I could use the magnet for that
[10:55:02] <The_Ball> I could use a little coil to generate a magnetic field, that could change as the grooves pass over, common way to do it
[10:55:04] <Jymmm> logs
[10:55:06] <Jymmm> logger
[10:55:11] <Jymmm> !logger
[10:55:16] <Jymmm> logger[mah]:
[10:55:16] <logger[mah]> Jymmm: Log stored at http://emc.mah.priv.at/irc/%23emc/2011-05-15.html
[10:55:36] <Jymmm> no I want alex_joni's logs
[10:55:54] <KimK> You could cut one index groove on the next pulley up or down, maybe. But what's the pickup/sensing scheme?
[10:56:21] <The_Ball> It's a dirty environment, so I'd like to use hall-effect
[10:56:41] <KimK> The_Ball: OK, a little coil. With a permanent magnet involved? And you'd need three of them to do it right.
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[10:57:34] <IchGuckLive> Hi all ! someone nows the Font type of the EMC example on axis ?
[10:57:53] <The_Ball> I wasn't thinking of using a permanent magnet, but yes I'd need two for A/B and I could use the extra magnet for Z
[10:58:32] <KimK> The groove is not a very pronounced feature, but it might work.
[10:59:12] <The_Ball> hall sensors are very sensitive so with a close clearance it could work
[10:59:17] <KimK> IchGuckLive: Hi, I don't know what font that is, but almost certainly cradek would know, I can ask him later.
[10:59:48] <The_Ball> I could of course mill the grooves deeper
[11:00:55] <IchGuckLive> Thanks
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[11:01:45] <KimK> The_Ball: Well, you might want to play with some scrap pieces before you do any more milling on your spindle pulley, since this scheme doesn't seem to be fully baked yet.
[11:04:03] <The_Ball> KimK, yeah probably a good idea :)
[11:04:12] <KimK> Even if it was just a flat piece of scrap with grooves milled in it, that might be enough for you to fool around with, to get the spacing, sensitivity, etc, right
[11:04:44] <KimK> Do you have a scope?
[11:05:26] <The_Ball> I do
[11:05:59] <KimK> You might look into some very small (chip-type surface-mount?) hall sensors and see what's available and what will fit.
[11:07:13] <The_Ball> I've got some normal transistor looking types which I've played with before, just got to make up some brackets then I'll be able to test using the pulley as is
[11:07:54] <The_Ball> There is very little run-out on the pulley so I'll be able to get them almost touching
[11:07:55] <KimK> Don't forget you'll probably have to shift their positions (for proper quadrature), and it might be nice if you could do that from outside the spindle pulley, if possible? So you'll have lots to think about.
[11:09:22] <The_Ball> that's the fun about diy cnc isn't it
[11:09:40] <IchGuckLive> KimK: freeserifbolditalic !
[11:10:10] <KimK> IchGuckLive: Great! How did you find out?
[11:11:42] <Jymmm> fenn: you still have those encoder disc stuff?
[11:12:05] <Jymmm> fenn: from 4 years ago
[11:12:14] <KimK> The_Ball: You bet.
[11:12:42] <Jymmm> fenn: actually around 2007-09-10
[11:13:26] <psha> Jymmm: you need older logs?
[11:13:40] <Jymmm> psha: why's that?
[11:13:59] <psha> just guessing :)
[11:14:07] <psha> 14:55 < Jymmm> no I want alex_joni's logs
[11:14:13] <psha> and
[11:14:21] <psha> 15:12 < Jymmm> fenn: actually around 2007-09-10
[11:14:25] <psha> :)
[11:14:43] <Jymmm> psha: No, I want content that was contained in those ogs (all are broken links now)
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[11:14:48] <Jymmm> logs
[11:15:15] <psha> heh, that's more difficult ;)
[11:15:58] <Jymmm> Nah, fenn wrote it. I'm sure it's available still.
[11:17:53] <Jymmm> oh great... this backup is gonna take forever
[11:18:06] <Jymmm> it's only 1TB, eeeeeeesh
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[11:29:31] <The_Ball> bah, that's not even half a tape worth of data
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[11:36:18] <Jymmm> what tape is this you speak of?
[11:37:03] <The_Ball> lto-5, well 1500gb decimal to be exact, but the drives have a really good compression algorithm
[11:37:48] <Jymmm> This is just 1TB of 4TB hdd's
[11:38:12] <Jymmm> err 1 of 4 one tb hdd's
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[11:53:58] <The_Ball> Ha, too easy, now they deliver the sensors ready to use: http://www.allegromicro.com/en/Products/Categories/Sensors/ats.asp
[11:54:14] <The_Ball> The gear-tooth sensor ICs are smart sensor ICs that learn about their targets to optimize the magnetic circuit detection. Each module combines in a compact high-temperature plastic package: a samarium-cobalt magnet, a pole piece, and a differential Hall-effect IC that has learning capability. These sensor ICs can be easily used in conjunction with a wide variety of gear or target shapes and sizes.
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[12:53:43] <jthornton> can you download a deb of 2.5 on a winblows computer and copy it to a linux computer?
[12:58:12] <psha> jthornton: yes
[12:58:17] <psha> it's just deb
[12:58:19] <psha> archive
[12:58:57] <jthornton> lol, I got my d510 network fixed... replaced the motherboard now my internet is down except for this dialup connection
[13:00:45] <jthornton> from this page? http://buildbot.linuxcnc.org/dists/lucid/v2.5_branch-rt/binary-i386/
[13:02:37] <jthornton> I think maybe the last one on the list is the one to get :/
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[13:07:18] <psha> :))
[13:08:17] <psha> http://buildbot.linuxcnc.org/dists/lucid/v2.5_branch-rt/binary-i386/emc2_2.5.0~pre1-315-g1156d70_i386.deb
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[13:08:21] <psha> yes, this one looks ok
[13:09:09] <jthornton> hmm, it's not very big is it
[13:09:55] <psha> heh, binaries are small
[13:10:19] <awallin_> http://www.anderswallin.net/2011/05/faster-waterline/
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[13:37:06] <IchGuckLive> hi does anyone now if there is a cnc router icon
[13:37:14] <IchGuckLive> 30x30 pix or so
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[14:15:31] <JT-Shop_> oh wow the internet is back
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[14:16:12] * Tom_L just flipped the switch back on
[14:16:49] <Tom_L> ok, i get pulses on my 47 board but no encoder pulses in hal scope
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[14:17:20] <Tom_L> gonna check the wiring but i'm betting on a software thing
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[14:18:04] <Tom_L> or i don't know what exactly to monitor in scope
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[14:26:10] <JT-Shop> the MPG
[14:26:13] <JT-Shop> ?
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[14:27:18] <Tom_afk> :/
[14:27:22] <Tom_afk> how rude
[14:27:26] <Tom_afk> yes mpg
[14:28:01] <JT-Shop> can you see the encoder count change in the watch window?
[14:28:01] <pcw_home> This is a 7I47 encoder input?
[14:28:16] <Tom_afk> nope and yep
[14:28:35] <Tom_afk> pcw, i see the pulses on the 47 leds
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[14:28:50] <Tom_afk> i'm rather sure it's a noob software issue
[14:29:33] <pcw_home> That (LEDs) was my next question
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[14:30:13] <pcw_home> SVST2_4_7I47B bitfile?
[14:30:27] <Tom_afk> this interweb is gonna suck today
[14:30:43] <Tom_afk> pcw_home, yes
[14:31:17] <Tom_afk> i'm sure that loaded because it remapped the step and dir pins
[14:31:39] <Tom_afk> step0 - io0, dir0 - io1 etc
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[14:35:11] <Tom_L> frickin irc
[14:35:51] <AC-130U> if i am buying a mill, how do i check it to make sure its accurate/precise enough and repeatable?
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[14:37:23] <cpresser> AC-130U: use a dial indicator.
[14:38:05] <cpresser> another good test is to try moving/bending parts of the mill/frame that should be stiff
[14:38:23] <awallin_> buy it new with a certificate :)
[14:38:48] <JT-Shop> AC-130U: make some parts on it and bring your measuring tools
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[14:39:24] <archivist> iirc this is a second hand one
[14:39:47] <HazardX> Demand samples?
[14:40:00] <AC-130U> hmm, im wanting a used machine, which is why i wanna learn how to check the machine to see that its in good shape
[14:40:01] <JT-Shop> and watch while they make them :)
[14:40:25] <Tom_L> put a dial on the axis
[14:40:30] <JT-Shop> cnc machining center or old knee mill?
[14:40:40] <awallin_> AC-130U: get a machine from a school or someplace where it has seen only light use. avoid something that has run 3 shifts 24h for the last 5 years
[14:40:42] <Tom_L> look for signs of abuse
[14:40:59] <AC-130U> hmmm
[14:41:01] <Tom_L> look around the shop to see what types of material they run
[14:41:03] <AC-130U> knee mill
[14:41:21] <HazardX> getting from a school would be a terrible idea!
[14:41:23] <Tom_L> if they run aluminum it's less apt to be as worn as if they run steel or titanium all day long
[14:41:27] <HazardX> students never know how to use anything
[14:41:33] <AC-130U> cuz i know its impt to check so i dont have the table going downhill in the +x direction and warped in the y direction, for example
[14:41:40] <JT-Shop> manual or cnc knee mill?
[14:41:44] <AC-130U> manual
[14:42:11] <Tom_L> oiling system?
[14:42:30] <AC-130U> any type, preferably like a one-shot oiler?
[14:42:45] <Tom_L> any is better than manual lube
[14:42:52] <Tom_L> it seldom gets done routinely
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[14:43:15] <JT-Shop> most that have any use at all will have the X ways worn and the lead screws in the center will have wear :0
[14:43:37] <AC-130U> yeah, im kinda anticipating that
[14:43:50] <AC-130U> but am not sure how to take that into account
[14:44:41] <JT-Shop> a DRO helps with worn leadscrews
[14:44:43] <Tom_L> put a dial on it
[14:44:47] <Tom_L> and run the axis
[14:45:15] <Tom_L> if it looks like a sine wave run
[14:46:17] <AC-130U> oh, in the quill? then run the table the length of its movement and watch the dial, right?
[14:47:08] <Tom_L> check for runout on the spindle too
[14:47:44] <AC-130U> yeah. i was wondering about that... have to set the table true then check for runout?
[14:53:41] <JT-Shop> I've seen 1 year old Griz's with worn out leadscrews... starting with a good quality mill helps
[14:54:18] <Tom_L> ok maybe irc is squared away for the moment
[14:55:05] <JT-Shop> cool, now that you are caught up come on over I still have 9 rolls of insulation left :P
[14:55:20] <Tom_L> 2 part spray ftw
[14:55:42] <Tom_L> none of that itchy crap
[14:56:19] <Tom_L> 9 rolls?
[14:56:23] <Tom_L> you should be done by noon
[14:57:36] <Tom_L> can you jog emc with the mouse?
[14:57:53] <Tom_L> i tried to find that last night with no luck
[14:58:18] <Tom_L> i was gonna put a scope on the io and see if i had pulses
[14:58:25] <Tom_L> on the right pins
[14:58:51] <HazardX> I've only found jogging with the arrow keys on the keyboard, but I've only been using it for a day.
[14:58:54] <awallin_> a pyvcp jogwheel will respond to the mouse-wheel
[14:59:04] <Tom_L> if you have one
[15:00:10] <Tom_L> i'm also guessing it's the pullups on the 7i47 board i haven't fixed yet too
[15:02:51] <Tom_L> since estop is showing at the bottom
[15:03:53] <JT-Shop> Tom_L: what do you mean jog with the mouse?
[15:04:44] <Tom_L> i'm used to other software
[15:04:52] <Tom_L> i'm just looking for a manual jog button
[15:05:15] <Tom_L> and trying to figure out what pin estop is mapped to
[15:05:18] <JT-Shop> on the manual tab of Axis you can use the mouse to jog with
[15:05:22] <pcw_home> The 7I47 inputs are differential and dont need pullups (but do need differential drive signal)
[15:05:25] <Tom_L> so i can fix the jumper
[15:05:34] <JT-Shop> select the axis then press the + or - to jog
[15:05:47] <Tom_L> pcw_home, the jumpers are terminated by default
[15:06:41] <Tom_L> differential meaning i need to use AB and -A -B from the mpg?
[15:06:54] <Tom_L> on the -io inputs
[15:07:17] <Tom_L> currently i'm using A B on the +io input only
[15:07:58] <Tom_L> RX0 RX1 but not /RX0 /RX1
[15:08:10] <pcw_home> thats not likely to work
[15:08:37] <Tom_L> and rx0 is mapped to an encoder0
[15:08:39] <Tom_L> i think
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[15:13:53] <JT-Shop> so if you don't have a differential encoder in your MPG you could use GPIO and the software encoder?
[15:14:42] <cradek> you can usually use just one side of the differential outputs
[15:14:56] <cradek> but sure you can count an mpg in software
[15:15:29] <cradek> you can't use slow (opto22) inputs though - you have to read it fast enough to follow a spin.
[15:16:15] <JT-Shop> I'm thinking parallel port or 7i37TA GPIO
[15:17:06] <pcw_home> Yes on on 7I47 configs, encoder 0 is mapped to rx0,rx1,rx2 (A,B,I)
[15:17:16] <Tom_L> http://tom-itx.dyndns.org:81/~webpage/emc/dmesg.txt
[15:17:20] <Tom_L> there's the pin assignments
[15:17:27] <JT-Shop> so mine just worked cause I used a 7i33TA that takes both TTL and differential encoder inputs
[15:17:44] <Tom_L> yours worked cause you're just damn lucky
[15:17:54] * JT-Shop shuts up and goes back to itchulation
[15:17:58] <Tom_L> :D
[15:18:31] <Tom_L> so i need -A and-B wired up as well?
[15:18:46] <pcw_home> 7I52 will work as well (but it has muxed encoders so needs EMC2 2.5 or >)
[15:20:04] <pcw_home> its possible (but ugly) to configure the 7I47s differential inputs for single ended
[15:22:48] <Tom_L> single ended outputs
[15:22:59] <Tom_L> but not inputs
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[15:24:44] <pcw_home> What you do is this
[15:24:46] <pcw_home> 1. Disable termination on 7I47 (a jumper setting)
[15:24:48] <pcw_home> 2. Make ~1.6-2V voltage reference (this could be a 100 and 150 ohm resistor in series, 150 Ohm to 5V, 100 to ground, junction is 2V reference)
[15:24:49] <pcw_home> 3. Connect your single ended inputs to the RXN+ pins
[15:24:51] <pcw_home> 4. Connect your voltage reference to the RXN- pins
[15:25:36] <pcw_home> outputs? The outputs are either PWM or step+dir
[15:26:26] <Tom_L> so the /RX will float around 2v and the RX will have the +AB from the mpg
[15:26:36] <The_Ball> what's a good way of finding center of a hole, I haven't got a probe or a spinning center finder. Put a endmill the wrong way in a collet holder and use that to "feel" the edges and do the calculations?
[15:27:18] <cradek> do you have a regular dti?
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[15:28:22] <pcw_home> Yes the RS-422 receivers are basically comparators (but you need to disable the termination = 130 Ohm resistor between RX+ and RX-, theres a jumper for this)
[15:28:22] <The_Ball> what's a dti?
[15:28:30] <cradek> you don't need the fancy spinning kind.
[15:28:41] <cradek> brb
[15:28:45] <Tom_L> pcw_home, i changed the jumper on those pins already
[15:29:23] <Tom_L> i just need to A) wire up the -AB or B) use the voltage divider on the /RX pins
[15:29:36] <JT-Shop> The_Ball: big hole or small hole?
[15:29:44] <pcw_home> Yep
[15:30:07] <Tom_L> i was sorta misled or i probably would have gotten a different buffer board
[15:30:09] <Tom_L> but all is good
[15:30:27] <The_Ball> JT-Shop, today I was strugling with a "large" hole, 160mm diameter
[15:30:45] <JT-Shop> do you have an edge finder?
[15:30:50] <Tom_L> i'll be able to use the 47 for your new serial board
[15:30:56] <The_Ball> No, next on the shopping list
[15:31:05] <Tom_L> JT-Shop, i use my head to find edges all the time
[15:31:43] <JT-Shop> I meant The_Ball finding the center of a hole
[15:31:43] * The_Ball 's had won't fit in 160mm
[15:32:00] <pcw_home> The 7I47 is _all_ differential...
[15:32:06] <Tom_L> pcw_home, do the divider r's need to be that strong? will something closer to 1k 1.5k work?
[15:32:16] <JT-Shop> The_Ball: do you have an edge finder?
[15:32:38] <The_Ball> JT-Shop, no I don't
[15:32:56] <The_Ball> wow, I didn't know they were only like $20 for a edge finder
[15:33:14] <Tom_L> get a 'last word' indicator too
[15:33:14] <JT-Shop> a collet and a dowel?
[15:33:23] <JT-Shop> yep they are good
[15:33:38] <Tom_L> that and a wobble finder
[15:33:46] <pcw_home> They need to be low enough that the input impedance of the RS-422 receivers does not cause the voltage to shift too much
[15:34:01] <Tom_L> pcw_home, ok, i'll mess with it
[15:34:11] <The_Ball> JT-Shop, yeah I've got collets and dowels
[15:34:32] <JT-Shop> The_Ball: if you can fit a dowel in a collet so it just slips out when you go over the edge of the hole you can use that to find center
[15:34:42] <Tom_L> pcw_home, if i do that, i should be able to use the RX for general io input then right?
[15:34:43] <pcw_home> one low impedance divider will run a lot of inputs
[15:34:49] <Tom_L> yeah
[15:34:51] <The_Ball> JT-Shop, oh, good one
[15:34:58] <Tom_L> i'll chain them together
[15:35:10] <JT-Shop> find X center, move to X center find Y center, move to Y center and check X center
[15:35:19] <JT-Shop> you will be close
[15:35:38] <pcw_home> Yes they can be used as GPIO ( and they are safe to I think +-12V)
[15:35:51] <JT-Shop> improvise, adapt and overcome :)
[15:35:59] <pcw_home> GPI I mean
[15:36:02] <Tom_L> pcw_home, i'll try the AB -A -B first to make sure things work. Then wire up the divider
[15:36:17] <Tom_L> gotcha
[15:36:35] <Tom_L> JT-Shop, measure twice cut once
[15:36:49] <Tom_L> :)
[15:37:31] <The_Ball> JT-Shop, yeah, sort of the procedure I tried to follow :)
[15:38:53] * Tom_L goes for late breakfast
[15:41:43] <Tom_L> pcw_home, what's a good general purpose buffer board to get then?
[15:43:37] <Tom_L> 7I42?
[15:43:43] <Tom_L> TA
[15:43:56] <pcw_home> If you dont need differential you can just use a 7I42TA
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[15:44:53] <pcw_home> If you are using EMC 2.5 or > you can use the 7I52S or 7I52
[15:45:10] <Tom_L> from the live cd...
[15:45:16] <Tom_L> whatever that's up to now
[15:45:31] <pcw_home> Thats 2.4.6
[15:46:08] <Tom_L> is that an update or a build?
[15:47:39] <Jymmm> http://www.dabbleboard.com/draw/Guest688344/ug
[15:48:50] <JT-Shop> but if you didn't update you might be at 2.4.1
[15:49:12] <Tom_L> is it a simple matter of apt-get?
[15:49:30] <JT-Shop> usually the synaptic package manager bugs you to do it
[15:50:14] * Tom_L goes for late late breakfast
[15:51:51] <pcw_home> I may change the 7I47 inputs to the 7I52s scheme when I get chance (7I52 inputs are TTL or terminated RS-422, single jumper per pin select)
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[16:08:04] <JT-Shop> cool
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[16:10:37] <Tom_L> pcw_home does that mean i get a free upgrade :D
[16:11:26] <willburrrr2003> I'm trying to get my ngcgui to run for the first time, and get the msg " please install img: $sudo apt-get install libtk-img" my emc box is not connected to the internet, can I download it to my windows box and install it via usb-drive?
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[16:16:22] <Jymmm> HA! Summer in Chukotka can be pleasant with temperatures reaching the low twenties.
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[16:21:19] <pcw_home> Well if there was an upgrade it would be a long ways off...
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[16:27:06] <willburrrr2003> I downloaded the lib-img package for my version of ubunto....how do I install it after I unpack it?
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[17:51:59] <factor> Anyone have the lp port schematic
[17:54:25] <Tom_itx> parallel port?
[17:54:47] <factor> yes
[17:54:49] <JT-Shop> http://www.linuxcnc.org/docview/html/hal_parallel_port.html#fig:Parport-block-diag
[17:54:50] <Tom_itx> http://www.interfacebus.com/Design_Connector_Parallel_PC_Port.html
[17:55:03] <factor> foudn it once, looking again on the cnc linux site
[17:56:12] <factor> the scematic of the lp board
[17:56:41] <factor> I have the dual h bridge and programming the pic now, but need to know the basic layout of a workable modle
[17:57:25] <JT-Shop> Tom_itx: I'm sure glad the duck walking is done :)
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[17:59:25] <Tom_itx> feel a little shorter?
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[18:01:52] <Tom_itx> JT-Shop, you seem to know all the good links. You got one for a xilinx jtag wiggler?
[18:01:58] <Tom_itx> schematic
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[18:02:21] <Tom_itx> i've got an old one but it's on a board
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[18:03:09] <factor> I had found some but no pic was invlolved.
[18:03:16] <factor> http://www.lirtex.com/embedded/cnc-3-axis-stepper-motor-controller/
[18:03:29] <factor> I would imagine the pic or atmel version would have better real time control
[18:03:37] <factor> and the method I want to use
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[18:04:45] <JT-Shop> no
[18:04:46] <factor> uisng a 16f628 pic
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[18:06:54] <JT-Shop> I don't even know what a xilinx jtag wiggler is
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[18:09:46] <JT-Shop> there's nothing like a shower, a nap, and coming out to the shop and not a roll of insulation can be seen anywhere :)
[18:11:10] <Loetmichel> JT-Shop: hmmm
[18:11:48] <Loetmichel> i am lucky to find a place to rest my foot without destroying something...
[18:11:54] <Loetmichel> in my workshop
[18:12:19] <Loetmichel> looks like time to do some cleaning up ;-)
[18:13:13] <JT-Shop> my garage is the same way, one small path from door to door
[18:14:33] <Tom_itx> JT-Shop wiggler= jtag dongle
[18:15:00] <JT-Shop> what is jtag?
[18:15:11] <bzzzz> wiggler!
[18:15:16] <Loetmichel> JT-Shop: only thalt my workshop is a room IN my flat, not a garage ;.)
[18:15:20] <Tom_itx> if you want/need to program the cpld fpga
[18:15:41] <Tom_itx> or do debugging
[18:15:45] <bzzzz> wiggler's awful simple
[18:15:47] <Loetmichel> JT-Shop: jtag is a protocol to program various µCs and FPGAa
[18:15:50] <Loetmichel> -a+s
[18:15:50] <bzzzz> just google up the schem
[18:16:16] <Loetmichel> s/program/flash/debug
[18:17:01] <JT-Shop> ah ok
[18:17:41] <JT-Shop> Loetmichel: then everything is within reach if your in the middle, and advantage
[18:17:47] <JT-Shop> and/an
[18:19:41] <Loetmichel> JT-Shop: hmmm, you can look at it tis way. my wife says otherwise ;-)
[18:19:59] <Loetmichel> http://www.cyrom.org/palbum/main.php?g2_itemId=2877
[18:20:29] <Loetmichel> http://www.cyrom.org/palbum/main.php?g2_itemId=11459
[18:20:43] <Loetmichel> http://www.cyrom.org/palbum/main.php?g2_itemId=5486
[18:20:50] <Loetmichel> any questions? ;-)
[18:21:05] <HazardX> You've got shelves, no fair!
[18:21:10] <HazardX> :P
[18:21:46] <JT-Shop> I see unused wall space
[18:21:59] <Loetmichel> where?
[18:22:11] <JT-Shop> on the left of the first link
[18:22:40] <Loetmichel> thats where ceiling cat resides ;-)
[18:22:52] <HazardX> what's that heatsink thing on the top shelf of the first picture (right end, between a box and a red/green thing stacked on top of each other)
[18:22:56] <Loetmichel> http://www.cyrom.org/palbum/main.php?g2_itemId=10471
[18:23:03] <Loetmichel> http://www.cyrom.org/palbum/main.php?g2_itemId=10474
[18:23:05] <JT-Shop> http://i47.photobucket.com/albums/f163/johnplctech/garage/P1010064.jpg
[18:23:11] <JT-Shop> http://i47.photobucket.com/albums/f163/johnplctech/garage/P1010066.jpg
[18:23:16] <JT-Shop> http://i47.photobucket.com/albums/f163/johnplctech/garage/P1010065.jpg
[18:23:24] <pcw_home> We have a little PCB for Xilinx parallel type 3 JTAG interface (improved somewhat, Schmitt trigger on clock, operation down to ~2V)
[18:23:26] <pcw_home> I can supply these free if you want one (But Surface mount assy 2 chips I think and a few R's and C's)
[18:23:33] <Loetmichel> HazardX: thats a leftover from a little 230V inverter from 24V battery
[18:23:44] <Loetmichel> .... with 6kw ;-)
[18:23:53] <HazardX> yea, it looked high power-something
[18:24:14] <Loetmichel> http://www.cyrom.org/palbum/main.php?g2_itemId=5117
[18:24:19] <Loetmichel> little something ;-)
[18:24:59] <Loetmichel> that steel measuring tape is 50cm ;-)
[18:24:59] <HazardX> looks like a heatsink and mounting rail in one :S
[18:26:14] <Loetmichel> yes, i mounted the two (!) power transistors for the inverter directly on one of thes sinks each an d the electronics above it.
[18:26:27] <Loetmichel> only the 6000W Transformer was seperate
[18:26:59] <Loetmichel> (and HEAVY ;-)
[18:28:32] <Loetmichel> but the looks of the german Tourists we met in Maroc in the desert as we served them fresh toast in the morning in our "caravan" was worth the hassle building it.
[18:29:07] <Loetmichel> (and of course the possibility to arc-weld somwhere in the nowhere ;-)
[18:30:00] <Loetmichel> was build into THIS car: http://www.landscaper.de/db_03210.jpg
[18:30:12] <Loetmichel> http://www.landscaper.de/db_0521.jpg
[18:30:18] <Loetmichel> http://www.landscaper.de/db_0531.jpg
[18:30:49] <Loetmichel> http://www.landscaper.de/db_0211.jpg <- down below the sink ;-)
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[18:38:02] <Loetmichel> AH, FOUND it
[18:38:05] <Loetmichel> http://www.landscaper.de/db_Neu-2251.jpg
[18:38:20] <Loetmichel> that are teh transistors and the electronics
[18:38:32] <Loetmichel> the transformer isnt on photo, sorry
[18:42:22] <factor> or pic16f684 is what i meant
[18:42:32] <factor> not 16f628
[18:52:41] <Jymmm> JT-Shop: Hey, you can get a car in/out of your garage!!!
[18:52:54] <JT-Shop> not my car Jymmm ...
[18:53:03] <JT-Shop> her car :)
[18:55:31] <Tom_itx> ok i've got another q. reading the hostmot2 functions: hm2_<BoardType>.<BoardNum>.read_gpio
[18:55:34] <Tom_itx> Read the GPIO input pins. (This function is not available on the 7i43 due to limitations of the EPP bus.)
[18:55:52] <Tom_itx> does that mean i can't use all the gpio for switches on it?
[18:56:45] <Jymmm> JT-Shop: Alright, you can actually get a car in and out of your garage easily!
[18:57:25] <JT-Shop> no it's very tight even for a little car like hers
[18:57:33] <Jymmm> bs
[18:59:47] <JT-Shop> she has 18" on each side and the front and 6" in the back
[19:00:01] <JT-Shop> and has to make a 90 degree turn to get in
[19:00:26] <JT-Shop> so it takes her two to three time to get lined up
[19:00:37] <Jymmm> THREE FEET CLEARANCE - That's like a mile!!!
[19:01:00] <JT-Shop> if you don't want to open a door or have to make a turn to get is yes it is
[19:02:04] <Loetmichel> Jymmm: for you and me. not for some ppl (girls).
[19:03:31] <JT-Shop> lol
[19:03:32] <pcw_home> Tom_its: No, you can read the GPIO, but only in the servo thread, (normally there's no base thread anyway), the 7I43 driver does not have the
[19:03:34] <pcw_home> separate READ GPIO function (intended for invocation by the base thread) , just the normal read
[19:03:55] <Loetmichel> i cant tell how often i hat the situation that i fitted in a parking slot without any hassle whre some girl with her little VW Polo abortet parking after the sixt desperate try
[19:04:06] <Loetmichel> and i drive a Opel Omega ;-)
[19:05:27] <pcw_home> Tom_itx: I'm pretty sure the hm2_servo and hm2_stepper hal files are set up this way (no base thread)
[19:05:43] <Jymmm> Loetmichel: Ah, I see what you mean... http://img.thesun.co.uk/multimedia/archive/00500/maximain_500031a.jpg
[19:07:44] <JT-Shop> I've not seen a base thread in them, in fact a little bragging in the header by seb about not needing one :)
[19:09:23] <Tom_itx> JT-Shop, so they would need to be set up similar to your axis and res switches
[19:09:54] <Tom_itx> although i wouldn't need mux for a single input
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[19:11:38] <JT-Shop> sounds right
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[19:26:51] <Loetmichel> Jymmm: I dont see the Connection
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[19:37:43] <Jymmm> Loetmichel: Well, you said girls, so it's either that, or one of these: http://cdn.pimpmyspace.org/media/pms/c/nk/kb/bd/big_girls.gif or http://3.bp.blogspot.com/_IedPelOXROc/TEz_xXO_gyI/AAAAAAAAAHM/-y1iv_gVuLM/s1600/27301-big_butt.jpg so which is it?
[19:38:08] <Gensor> how do you guys know my gf's?
[19:38:23] <Loetmichel> HIHI
[19:38:24] <Jymmm> Gensor: more to love
[19:38:31] <Loetmichel> none of the above
[19:39:04] <Loetmichel> i meant the typical 18 jears old fresh drivers license with a small compact car
[19:39:45] <Jymmm> that's for parking, I'm taking getting in/out of the car itself.
[19:40:35] <Loetmichel> ah, i see
[19:40:53] <Loetmichel> thats not a problem, my ass isnt the smallest, too ;-)
[19:41:11] <Jymmm> BABY GOT BACK!
[19:41:14] <Loetmichel> but i have more room in my car ;-)
[19:41:25] <Loetmichel> http://www.cyrom.org/palbum/main.php?g2_itemId=11969
[19:41:28] <Loetmichel> my car
[19:41:57] <Loetmichel> http://www.cyrom.org/palbum/main.php?g2_itemId=11678
[19:42:01] <Loetmichel> http://www.cyrom.org/palbum/main.php?g2_itemId=11672
[19:42:32] <Jymmm> That's not a car, it's a station wagon!!!
[19:42:56] <Gensor> is that a grocery getter?
[19:43:30] <Jymmm> Banned in the US since the 70's due to popular disgust!
[19:43:30] <Loetmichel> Gensor: no, but usable as Camper for 2 -3 ppl
[19:44:14] <Loetmichel> if you flip the back seat you have 2.05m * 1,65m flat surface to sleep on ;-)
[19:44:27] <Gensor> I use a pickup with a topper, still looking for a woman I can tolerate though
[19:44:34] <Loetmichel> Jymmm: i dont think so
[19:45:23] <Jymmm> Gensor: http://www.metacafe.com/watch/1263189/girls_inflatable_dolls/
[19:45:50] <Loetmichel> in .us it was selled as caddilac catera
[19:47:00] <Gensor> OMG!!!!
[19:47:13] <tom3p> wasnt the catera an Opel?
[19:47:19] <Loetmichel> yes
[19:47:25] <Jymmm> Gensor: There ya go, a steal at $6000 USD! Cheaper than an actual wife!!!
[19:47:27] <Loetmichel> i said: i drive an Opel Omega
[19:49:01] <Loetmichel> and my wife drives a opel Omega (microVan, based on the corsa, the smallest opel available)
[19:49:06] <Loetmichel> grrr
[19:49:14] <Loetmichel> s/omega/meriva
[19:49:32] <Gensor> the 35 joints is a nice option, and they are cheaper than an actual gf, however I do enjoy a slap from time to time
[19:50:02] <Jymmm> Gensor: Well you ARE in #emc, GIT ER DONE!!!
[19:50:20] <Gensor> I WILL!!!!
[19:50:36] <Jymmm> LOL, it has suicide doors!
[19:50:49] <Jymmm> http://en.wikipedia.org/wiki/File:Opel_Meriva_B_front_20100723.jpg
[19:52:14] <Jymmm> http://www.zercustoms.com/news/images/Opel/Opel-Meriva-FlexDoor-1.jpg
[19:52:27] <Loetmichel> Jymmm: the one of my wife is about a jear old, and has normal doors
[19:52:42] <Loetmichel> year
[19:52:51] <Jymmm> Loetmichel: bummer, the suidie doors are cool!
[19:53:14] <Loetmichel> Jymmm: the meriva isnt that cool
[19:53:17] <Loetmichel> over all
[19:53:27] <Jymmm> Maybe not, but the doors are =)
[19:53:48] <Loetmichel> it is a NEW car wich rattles and screams if driven >170kmh
[19:54:50] <Loetmichel> my 6 year old omega goes over a bad road @ 200kmh with tempomat on like a hovercraft.
[19:55:20] <Loetmichel> and ypu can tak to your neighbour without raising your voice.
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[19:56:13] <Loetmichel> and becaus i drive a lot for my job thats a point to consider
[19:56:39] <Jymmm> hovercraft would be more fun
[19:56:57] <Loetmichel> we say here the Omega is a "rolling Livin room" with attached Storage room ;-)
[19:56:59] <Gensor> http://www.youtube.com/watch?v=JVQ4LzkoYTM
[19:59:26] <Jymmm> lol
[19:59:45] <Jymmm> and included CL too *eeeeeesh*
[20:00:02] <Loetmichel> CL?
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[20:04:57] <Gensor> http://www.youtube.com/watch?v=nZMwKPmsbWE
[20:05:23] <Gensor> hokay, what do you think
[20:08:09] <Jymmm> Loetmichel: CL == http://craigslist.org/
[20:09:02] <Loetmichel> ah
[20:09:28] <Gensor> hope I didnt offend anyone with the vids. I enjoy a good laugh from time to time
[20:09:32] <Jymmm> Gensor: Too bad I read that Calif would never break off and become an island.
[20:10:05] <Gensor> are you from ca?
[20:10:10] <Jymmm> yep
[20:10:30] <Loetmichel> Jymmm: IIRC my geology lessons: COULD happen. but only to the real small part outside of the stAndras rift
[20:10:33] <Loetmichel> +e
[20:10:57] <Gensor> just dont expect the rest of the us to bail out ca some day and we will all be good
[20:11:07] <Jymmm> Loetmichel: You need a hovercraft... http://vimeo.com/7110655
[20:12:06] <Loetmichel> Jymmm: to big for european streets
[20:12:11] <Loetmichel> ... and noch street legal
[20:12:13] <Gensor> hehehehe
[20:12:14] <Loetmichel> not
[20:12:24] <Jymmm> Loetmichel: get a pilots license =)
[20:12:31] <Loetmichel> have one ;-)
[20:12:38] <Gensor> that would be awsome going downtown with one of those though
[20:12:57] <Loetmichel> but for a hovercraft you dont need a pilot license but a Captains license
[20:12:58] <Loetmichel> ;-)
[20:13:08] <Loetmichel> i think
[20:13:23] <Jymmm> d) All the Above
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[21:45:15] <MOGLI> anyone using Hypertherm???
[21:48:08] <Jymmm> wut tat?
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[21:51:59] <factor> What is A direction?
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[21:54:56] <MOGLI> hello Jymmm do you know anything about plasma???
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[21:55:35] <MOGLI> i just purchased Hypertherm PowerMax45.. and dont know about consumables
[22:00:17] <AC-130U> air supply, a given
[22:00:27] <AC-130U> your ceramic cup (every once in a great while)
[22:00:40] <AC-130U> your electrode (tungsten, shouldnt have to worry about it fora while)
[22:00:50] <AC-130U> other than that, i dont think there are consumables with the plasma cutters
[22:06:40] <MOGLI> ok so i should ordered Electrodes.. and how many???
[22:06:52] <MOGLI> any idea... thanks for reply AC-130U
[22:07:45] <MOGLI> actually i am using plasma first time.. i know oxyfuel ....
[22:08:30] <AC-130U> just a single 10-count should begood
[22:08:30] <Jymmm> MOGLI: It's an inert gas =)
[22:09:06] <AC-130U> plasma uses either shop air (dry) or like argon or nitrogen/argon mix
[22:09:20] <Jymmm> MOGLI: oh and it cuts stuff. that's my total knowledge of a plasma cutter.
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[22:10:01] <AC-130U> im not sure if the electrodes used in the plasma cutter is the same as used in tig welders
[22:13:46] <MOGLI> they have links for electrodes etc..but i was not sure about quantity.. one electrode per day???
[22:14:02] <AC-130U> not even
[22:14:13] <MOGLI> and wht about ceramic cup??
[22:14:14] <AC-130U> tungsten electrodes last a pretty long time
[22:14:36] <AC-130U> ceramic cup you replace every once in a great while... they do wear away due to the intense heat of the plasma arc
[22:15:06] <MOGLI> so i should ordered ceramic cups more than electrodes right??
[22:15:19] <MOGLI> how many a days??
[22:15:34] <MOGLI> sorry for poor english..
[22:15:52] <AC-130U> maybe once every 6 months to a year, from what im told
[22:16:10] <MOGLI> which plasma are you using AC-130U??
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[22:16:28] <MOGLI> you mean ceramic cup once every 6 months..
[22:16:32] <MOGLI> right
[22:16:40] <AC-130U> i used a miller plasma cutter in my welding class
[22:17:01] <AC-130U> teacher said the electrodes and cups get replaced very occasionally, like once every 6 months or someshit
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[22:17:58] <MOGLI> ok.. thanks for info AC-130U
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[22:43:57] <wtbaker> Hi guys. Anybody around that could give me some general direction about implementing a touch-off pad for speeding up my manual tool changes?
[22:44:14] <factor> What is A direction spindle I imagine is the tool arm rotation but is A direction the object rotations
[22:44:59] <wtbaker> I currently jog over to whatever spot I defined as the Z reference. Jog down real slow. Go to incremental mode. Stick a slip of paper between the tool and the spot, and then keep step jogging until I have interference.
[22:45:00] <JT-Shop> touch off pad?
[22:45:09] <JT-Shop> ah
[22:45:18] <JT-Shop> get a dowel and use that
[22:45:28] <wtbaker> What I'm describing is a little pad that makes an input when you tool moves down and touches it.
[22:45:32] <Jymmm> hang clothes on it?
[22:45:48] <JT-Shop> jog down lower than the dowel then move up slowly till the dowel just passes under
[22:45:57] <wtbaker> I actually bought one a couple of years back. I never implemented it.
[22:46:03] <JT-Shop> very accurate and fast
[22:46:13] <Jymmm> JT-Shop: Oh, I just use a flashight
[22:46:14] <wtbaker> JT-Shop, I see what you are saying, but I think the touch-pad would be much quicker.
[22:46:52] <JT-Shop> except you can't use that to touch off your coordinate system to the material
[22:47:09] <JT-Shop> do you have presettable tools?
[22:47:15] <JT-Shop> or a tool changer?
[22:47:17] <wtbaker> When I messed with Mach3, I found a set of scripts or something where you could manually change a tool and then hit a button. It would go over the pad, jog down slow until the input was made, repeat the process slower and then you'd be good to go.
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[22:47:28] <wtbaker> JT: no tool changer. I'm the tool changer.
[22:47:56] <wtbaker> JT: It's a router and I have to remove the collet nut each time. There's no holder system or anything.
[22:48:17] <JT-Shop> ok, you could have a subroutine to do that if you like
[22:49:39] <wtbaker> I normally "touch-off" to my x y and z for a job clamped on the table somewhere. I'd like to have a button that I could use when time to change tools that would, go over to the machine coordinates where the touch-off pad was. Come down to make an input. compare that to previouis tool. Then set up new offsets accordingly for new tool.
[22:49:51] <wtbaker> Speeding up the proces is the only objective.
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[22:50:09] <Jymmm> I wish I knew how to use a ccd camera and a lightsource to create a touch off.
[22:50:40] <wtbaker> Jymm: I don't see why. You can buy a touch-pad for $100 or build one for $10.
[22:50:46] <Jymmm> I've seen it doen before and dead accurate, but eyes no sofwarez programmers
[22:51:17] <Jymmm> wtbaker: Becasue you don't need to have metal to metal to use it, it can be wood or even plastic
[22:51:57] <wtbaker> Perhaps if I knew more properly what to call the touch-pad or technique, I could find example in the docs or google it with some examples of implementation.
[22:52:11] <JT-Shop> like I said you can write a subroutine to do what you want
[22:52:40] <Jymmm> wtbaker: Theyr'e called "Tool setter" http://toolsensor.com/
[22:53:05] <Jymmm> http://www.cad2gcode.com/cncprojects/id16.html
[22:53:18] <wtbaker> JT: I think of a subroutine as a set of G code to repeate a path or function used multiple times in a program.
[22:54:14] <Jymmm> wtbaker: http://www.youtube.com/watch?v=7uoP_A-Ud_A LOL
[22:55:05] <JT-Shop> I use a subroutine to "touch off" my plasma torch to find the material height...
[22:55:13] <JT-Shop> then the sparks fly
[22:55:30] <JT-Shop> and I use before each start...
[22:55:36] <Jymmm> JT-Shop: We;re talking CNC, not your love life =)
[22:55:46] <JT-Shop> :P
[22:56:20] <Jymmm> That's cute, the tool setter "pops up"
[22:56:28] <tom3p> JT-Shop, do you use the voltage drop to get the touch off? is this with the Mesa hdwr?
[22:57:03] <JT-Shop> tom3p: I have a floating head and have a micro switch connected to the probe input
[22:57:03] <wtbaker> "ToolSetter" OK, I guess that's the correct term. And I see on the link that Jymm posted, there are instructions on how to implement one for Mach3.
[22:57:20] <tom3p> ah, a sewing machine foot ;)
[22:57:25] <wtbaker> Seems though that JT-Shop feels like the whole thing can be done in G-code.
[22:57:37] <JT-Shop> I do it...
[22:57:42] <JT-Shop> sure why not
[22:57:45] <Jymmm> http://newvernacular.com/Tool_Setter.html
[22:57:55] <JT-Shop> it's part of your program
[22:58:21] <Jymmm> http://www.amazon.com/Flexbar-Electronic-Tool-Setter/dp/B001C1F9O8
[22:58:55] <wtbaker> JT: Do ya think there are any examples for guys like me who barely know G1 from G0 so we can follow it bit-by-bit. I guess, it would involved swapping coordinate systems back and forth, detecting a location when an imput was made. Stuffing that into a register. Doing a little math. Seems outside of the scope of g code to me.
[22:59:20] <JT-Shop> you make it too complicated :)
[22:59:30] <tom3p> seems the THC could be fed 300V at a few uA and use that to touch off when the gap voltage disappears (when the head touches the wkpc ... done slowly of course )
[23:00:06] <JT-Shop> you move to the tool change location and pause... change the tool, move to touch off, set your Z, move on
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[23:00:37] <JT-Shop> tom3p: you don't want to fire off the torch at the wrong height or your buying a lot of consumables
[23:00:59] <tom3p> of course you dont wire it so it auto disharges during a probe
[23:01:35] <JT-Shop> wtbaker: it can all be done inside of g code with no math or fancy stuff
[23:02:10] <JT-Shop> you use a probe to find Z then set the tool offset
[23:02:12] <wtbaker> jt: It may be that I just am not familiar enough with emc. Moving to the tool change location involves changing from the current coordinate system, to the machine coordinate system. Then when I get there, I've got to somehow sense the tool touch, know the difference between where I touched this time and where the last tool was touching. Then change the Z offset from the coordinate system in my job.
[23:04:10] <wtbaker> Jymm definately has the idea of the devices I want to use.
[23:04:45] <JT-Shop> hmm is this thing still connected to the IRC
[23:05:25] <wtbaker> JT: Yep.
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[23:36:51] <jthornton> hmm does this one work
[23:37:25] <Tom_itx> ic u
[23:37:25] <jthornton> a bit of a connection issue here
[23:37:38] <jthornton> reverted to dial up :/
[23:37:54] <jthornton> seems like he left
[23:38:16] <jthornton> trying to complicate things too much must have been a mack troll
[23:39:37] <jthornton> it's funny how guy that don't know g0 from g1 think they know it all...
[23:40:20] <jthornton> guy/guys/s
[23:40:25] <Jymmm> Like a G6...
[23:41:16] <jthornton> he needs to get past G2 and G3 at least...
[23:41:37] <Jymmm> jthornton: like a G6.... like a G6.. flyin like a g6....
[23:41:48] <jthornton> he must have been a windows programmer
[23:42:02] <jthornton> like a G6
[23:42:18] <Jymmm> jthornton: (do you know what a G6 is?)
[23:42:28] <jthornton> yea, you showed me
[23:43:10] <jthornton> Jymmm: I thought you were going to show up this morning for the insulation party...you like parties right
[23:43:23] <tom3p> pcw_home, around? i'm reading the THCAD manual and see its output is frequency, and the freq is proportional to the input.
[23:43:23] <tom3p> is that 0 when shorted and fullscale when far away?
[23:43:41] <Jymmm> jthornton: Well, I linked you to a song, but... it's a $58M Gulfstream G650
[23:43:58] <Jymmm> http://en.wikipedia.org/wiki/Gulfstream_G650
[23:44:22] <jthornton> tom3p: not it does not start at 0 but at some number that I forget
[23:44:49] <jthornton> so it always had a frequency output
[23:45:28] <tom3p> when it runs what does the output stream look like? fairly stable? wacky & needing lots of filtering?
[23:45:46] <jthornton> stable
[23:45:50] <jthornton> AFAIK
[23:45:55] <jthornton> or can tell
[23:46:10] <tom3p> do you have some py/gl meter widget?
[23:46:30] <tom3p> sorry before i had misconceptions of the AD now i know if AF
[23:46:39] <tom3p> know its a/f
[23:46:40] <jthornton> I have a pyvcp meter that shows the volts after the calculations
[23:47:05] <tom3p> a few volts jitter? decivolts?
[23:47:34] <jthornton> when not running I see a few volts jitter
[23:47:46] <jthornton> when running it seems smooth
[23:48:30] <tom3p> very interseting, never thought of using a/f to freq ctr (encoder ) to monitor such
[23:48:34] <tom3p> thx
[23:49:22] <jthornton> never occurred to me either, came out of Peter's brain
[23:49:45] <jthornton> I kept bugging him for something for a THC...
[23:50:07] <Jymmm> T H C !!!! OH YEAH BABY!!!!
[23:50:34] <tom3p> when i run edm, the similar process monitor will be < 1v jitter when i'm tuned in, then soemtime you can see a 'humping' which is really servo tuning and machine response
[23:50:35] * jthornton calls it a night...
[23:50:37] <Jymmm> party at jthornton!!!
[23:50:42] <Jymmm> jthornton: G'Night
[23:50:48] <Jymmm> CODE WORD
[23:50:49] <tom3p> gotta get me some (well one )
[23:50:55] <jthornton> goodnight guys
[23:51:04] <tom3p> thx bye
[23:51:06] <jthornton> say goodnight Gracie
[23:51:20] <Jymmm> tom3p: Dont let her herar you say that, or it'll be NONE!
[23:52:28] <tom3p> i think i'll order one just to monitor machines with hal
[23:52:40] <Jymmm> a freq counter?
[23:53:21] <tom3p> THCAD
[23:53:30] <tom3p> 69$ ok, done
[23:54:43] <Jymmm> tom3p: which one did you order?
[23:55:06] <AC-130U> hahaha nice
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[23:55:16] <Jymmm> tom3p: 10 or 300 volt?
[23:55:17] <AC-130U> THCAD ;)