Back
[00:00:35] <andypugh> As long as you get to bill direct for the parts, and it doesn't eat into your profit
[00:00:58] <StaticSyphon> Yeah good call
[00:01:44] <Valen> 10.04 probably wont let you create an array in the GUI
[00:02:26] <Valen> but something like this will still work
http://blog.foobaria.com/2010/05/installing-ubuntu-1004-desktop-with.html
[00:02:49] <jimbo133> andypugh: Thanks jim
[00:03:28] <andypugh> jimbo133: It works now?
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[00:05:28] <StaticSyphon> Ah, nice, thanks for the article, really appreciate it!
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[00:36:29] <andypugh> Is it possible in gitweb to work out what branch a commit went into?
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[00:42:56] <StaticSyphon> Alright, thanks for your help andypugh and Valen! It made a big difference, really appreciate it!
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[00:57:05] <Jymmm> Why in the hell are wiper blades so expensive, AND why can't you find JUST refills anymore?!
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[00:59:07] <andypugh> In reverse order: because they are all held in different ways now, and very often a single piece, and because they are generally properly engineered to last several years rather than 6 months.
[00:59:51] <Jymmm> bullshit
[01:00:13] <Jymmm> on the several years part
[01:00:32] <andypugh> You have the wrong car then.
[01:00:39] <Jymmm> I dont mind buying the ARM once, then refills from the same mfg after that
[01:00:51] <andypugh> I can honestly say I have never bought a wiper blade.
[01:00:53] <Jymmm> buy everything includes the arm
[01:01:00] <Jymmm> but
[01:01:12] <Jymmm> refills dont even exist it seems
[01:01:50] <andypugh> You can often get the end (including the frame) minus the arm.
[01:02:00] <Jymmm> not here
[01:02:07] <Jymmm> you USED to be able to.
[01:02:37] <andypugh> http://www.wiperblades.co.uk/bosch-wipers/?gclid=CODTg7vw_6oCFdQNfAodUFGazg
[01:02:48] <Jymmm> http://www.amazon.com/Anco-1116-Refill-16/dp/accessories/B0009IK54O
[01:03:45] <andypugh> Millions of them:
http://www.amazon.com/gp/search/ref=sr_nr_n_0?rh=n%3A15684181%2Ck%3ABosch+wiper%2Cn%3A%2115690151%2Cn%3A15719731&bbn=15690151&keywords=Bosch+wiper&ie=UTF8&qid=1315011788&rnid=15690151
[01:03:51] <Jymmm> andypugh: What you linked to is what I want, they dont have that anymore
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[01:04:38] <Jymmm> $15 for a SINGLE refill?! fuck that
[01:04:59] <andypugh> 510 results, and that is just Bosch
[01:05:14] <andypugh> Your google-fu is weak
[01:05:20] <andypugh> What's the car?
[01:05:36] <Jymmm> andypugh: I'm not paying $15 for a single refill
[01:06:06] <andypugh> Feel free to crash into a tree next rainstorm then.
[01:06:30] <andypugh> That's like, 3 beers?
[01:06:35] <Jymmm> andypugh: A whole arm sure, but not JUST a refill
[01:06:55] <Jymmm> and I only want the refill
[01:07:23] <andypugh> Make one from scratch then.
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[06:35:55] <automata> Does anyone have a subroutine for waiting for an input...
[06:36:25] <automata> I have written one but it it has some problems...
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[08:59:07] <Loetmichel> mornin'
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[09:35:39] <automata> There is different behaviours in Axis and xemc/keystick user interface with regards to displaying program line numbers...
[09:36:10] <automata> I have put in a wait for input subroutine at the start of the line.
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[09:37:09] <automata> xemc and keystick display the wait line.. while Axis highlights the line before the call to the wait subroutine...
[09:37:25] <automata> How is this behaviour achieved in axis?
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[09:39:44] <automata> Axis seems to be waiting on the last line that caused motion...
[09:40:06] <automata> i.e. highlighting the last line that caused motion...
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[12:53:39] <skunkworks_> logger[psha]:
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[12:59:42] <JT-Shop> morning Sam
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[13:03:58] <skunkworks_> good morning john
[13:04:21] <skunkworks_> how is it going today? storm blew through here yesterday. lots of walnuts on the ground
[13:04:43] <skunkworks_> lots of people lost trees and one house burned down from a lightning strike
[13:22:29] <JT-Shop> ouch
[13:22:34] <JT-Shop> we are doing good
[13:23:03] <JT-Shop> just heading out for a bike ride in the country and some breakfast
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[14:27:17] <Valen> (on fallen wallnuts ;-P)
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[17:21:58] <syyl_> hrm
[17:22:25] <syyl_> i have problems adding ngcgui panels to axis Oo
[17:22:34] <syyl_> i followed this
[17:22:35] <syyl_> http://www.linuxcnc.org/component/option,com_kunena/Itemid,20/func,view/catid,40/id,8285/lang,english/
[17:22:40] <syyl_> but they dont appear
[17:28:00] <syyl_> oops
[17:28:16] <syyl_> edited the wrong inifile
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[17:31:42] <syyl_> now it works \o/
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[18:40:56] <Jymmm> It the claims are true, this is very interesting...
http://www.youtube.com/watch?v=yh_-DUKQ4Uw&feature=related
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[18:58:28] <pcw_home> yet another perpetual motion hoax...
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[19:10:04] <ve7it> Jymmm,
http://www.youtube.com/watch?v=gpCquUWqaYw
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[20:42:45] <JT-Shop> hmmm a 1.255 reamer seems to give the correct slip fit for the ratchet maker base pins
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[21:12:27] <toastydeath> JT-Shop, what does the reamer actually cut
[21:12:35] <toastydeath> 1.2550?
[21:13:05] <toastydeath> the only reason i ask is because reamers can cut +/-.001
[21:13:08] <JT-Shop> can't measure it all I know is my ever so slightly oversize pins fit the way I want to fit
[21:13:22] <toastydeath> which is why my old shop had 20 .250" reamers
[21:13:29] <toastydeath> and labelled each one with what it actually cut
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[21:13:46] <JT-Shop> my pins are 0.1252 and are a close slip fit in the holes now
[21:14:08] <JT-Shop> did you have pin gauges?
[21:15:10] <toastydeath> no, we used tri mikes where possible and bore gauges
[21:15:16] <toastydeath> pin gauges can't measure reamed holes
[21:15:21] <toastydeath> just gauge slip
[21:15:28] <toastydeath> bore gauges are cheap and work well
[21:15:55] <JT-Shop> I have a bore gauge set...
[21:16:17] <toastydeath> bore gauges are like the A-plus, number one way of measuring bore diameter
[21:16:42] <toastydeath> tri-mics are a little harder to read but they account for out of round a little better
[21:17:57] <toastydeath> they're also like 200 dollars per mic, 1500-2000 for a set vs. 100 bucks for a gauge
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[21:22:09] <JT-Shop> my bore gauges are so cheap I just use a yard stick to measure them :/
[21:22:29] <JT-Shop> brb, time to make a ballista part
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[21:50:22] <JT-Shop> is this the kind of bore gauge your talking about?
http://www.ebay.com/itm/2-6-DIAL-INDICATOR-BORE-GAGE-0005-GAUGE-/300527104142?pt=LH_DefaultDomain_0&hash=item45f8cfb08e
[21:50:36] <JT-Shop> or this
http://www.ebay.com/itm/4-pc-FULL-BALL-SMALL-BORE-HOLE-Precision-GAGE-GAUGE-SET-/310342273994?pt=LH_DefaultDomain_0&hash=item4841d74bca
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[22:13:42] <YK> andypugh: a concern that might solve a lot of issues - does emc2 work with a parallel port that has been adapted from a usb port?
[22:17:07] <Tom_itx> woah! somebody is alive...
[22:19:39] <syyl_> *looks scared*
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[22:23:48] <SWPadnos> YK, no, it won't work
[22:25:01] <YK> SWPadnos: what are the common methods of making a computer compatible with emc2? As in, a particular parallel port?
[22:25:07] <SWPadnos> it's not an EMC thing, I'm sure won't work for any CNC program that uses a parallel port
[22:25:35] <SWPadnos> for software step generation, any "real" parallel port that the kernel can initialize will work
[22:25:54] <SWPadnos> these days, that means it needs to be a PCI or PCIe parallel card
[22:26:34] <SWPadnos> (a PCMCIA or ExpressCard parport would also work, but laptops in general don't work, so I didn't mention those)
[22:28:37] <andypugh> YK: Also, a parallel port won't have enough pins for your application. (but will have enough to try out one axis, as suggested)
[22:29:24] <YK> andypugh: can you tell me how that one axis system can be set up just with a parport?
[22:30:48] <andypugh> You can use software step generation for the valve, and spare pin for the direction. You do still need a stepper drive. (Sorry if it seemed I was saying you can dispense with that too)
[22:32:59] <YK> andypugh: so that would be a parport connector with loose wires that connect to the stepper driver, pwm driver, and encoder? It can work directly like that?
[22:33:17] <andypugh> Yes.
[22:33:22] <Tom_itx> on a regular parport yep
[22:33:35] <YK> what's a regular parport?
[22:33:44] <Tom_itx> DB25
[22:33:50] <SWPadnos> one that isn't USB-connected ;)
[22:33:52] <andypugh> Not optimally, you will run out of encoder counting speed fairly easily, but it works.
[22:34:15] <Tom_itx> optionally you can add a card to the Parallel port and enhnace it's performance
[22:34:21] <Tom_itx> ie a 7I43 mesa card
[22:34:40] <andypugh> You have high-count encoders, but I suspect that if the robot arm is doing 3000rpm then something has gone badly wong.
[22:35:03] <SWPadnos> are those encoders on the arm or on the motor?
[22:35:09] <Tom_itx> unless the encoder is on the motor on a gearhead
[22:35:25] <Tom_itx> which is very likely
[22:36:12] <SWPadnos> one robot I saw had a 50:1 harmonic gear on it, and the motor had a 16k or 64k count encoder (I don't remember which)
[22:36:25] <SWPadnos> which could do 3000 RPM
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[22:38:10] <YK> andypugh: or something miraculously right (hahaha). Ok, so first the no-card 1 axis test, followed by the yes-card 1 axis test? How much difference in coding will there be? If a lot, maybe starting with the 1-axis yes-card test would be better
[22:38:31] <Tom_itx> not much
[22:39:18] <YK> any approximations on highest encoder pulse per revolution that this no-card setup can take?
[22:39:54] <Tom_itx> somewhat depends on your pc latency i believe
[22:39:57] <SWPadnos> an average PC can run a 20 microsecond base thread, which means that you can be reasonably sure of counting up to 25000 counts per second
[22:40:07] <Jymmm> ve7it: cool! WHERE is the musci source is what I want to know.
[22:40:10] <andypugh> SWPadnos: This is a hydraulic robot, with steppers operating valves to control speed. Which is why I am suggesting a feasibility study first.
[22:40:10] <SWPadnos> (that's 1/2 the base thread frequency)
[22:40:29] <SWPadnos> oh sure. I remember that I didn't want to read back all the details :)
[22:40:32] <Jymmm> pcw_home: It's not intended as that, I was talking about the effeciancy
[22:40:54] <YK> and also as a side note, can the mesa 7i43-4 take 15 million pulses per second from the encoders?)
[22:41:23] <YK> **I meant 30 million)
[22:41:26] <SWPadnos> I don't think so
[22:41:35] <Jymmm> I want to see a 15M pps encoder
[22:41:48] <Tom_itx> yeah
[22:41:51] <Jymmm> or even a 1M pps
[22:42:00] <Tom_itx> i want to see a perpetual motion machine too
[22:42:03] <SWPadnos> it's a noise issue, I'm sure the FPGA counter can be made to run that fast, but you'd never be able to reasonably filter the inputs
[22:42:25] * Jymmm smacsks Tom_itx, I never said it was, I was just talking about the effeciancy of it
[22:42:28] <SWPadnos> ... against the electrical noise inherent in an industrial environment
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[22:42:48] <Tom_itx> Jymmm, put a windmill in front of it and you might have something workable
[22:42:56] <YK> SWPadnos: what's a reasonable pulse per revolution number for the 7i43-4? And are there options for increasing that value?
[22:43:21] <SWPadnos> counts per revolution shouldn't matter much, it's the count rate that matters
[22:43:30] <YK> I was hoping that the 7i43 could take 60 million ppr but I guess not)
[22:43:36] <YK> pps*
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[22:44:07] <Jymmm> Tom_itx: electrically generated heat is the most waster of energy ever, so if it can ACTUALLY put out in heat (BTUs) of what it takes in in motor wattage, that would be impressive.
[22:44:08] <Tom_itx> do you have mechanics that require that?
[22:44:24] <SWPadnos> you'll be hard pressed finding an encoder that can output that pulse rate, and wires that can carry it
[22:44:26] * Tom_itx doubts it
[22:44:51] <Jymmm> Tom_itx: I do too, thats why I said if it lives up to it's claims.
[22:45:09] <Tom_itx> Jymmm, use an auto torque converter
[22:45:20] <Tom_itx> they generate alot of heat
[22:45:25] <Jymmm> Tom_itx: Yeah, I have one of those in my shirt pocket.
[22:45:27] <YK> So a reasonable pps number?
[22:45:34] <Tom_itx> i wondered what that was
[22:45:51] <Jymmm> Tom_itx: I was just happy to see you is all
[22:45:54] <SWPadnos> I think the standard Mesa options are 1MHz and 4 MHz, but you should check that
[22:46:13] * Jymmm moons SWPadnos
[22:46:21] * SWPadnos barfs on jymmm's ass
[22:46:35] <Jymmm> SWPadnos: GET OFF MY ASS!
[22:46:46] <SWPadnos> put it back in your pants!
[22:46:59] <syyl_> strange things over here Oo
[22:47:01] <Jymmm> what pants?
[22:47:04] <syyl_> not to much with cnc, hm?
[22:47:06] <SWPadnos> ewww
[22:47:06] <syyl_> ;)
[22:47:10] <Tom_itx> he said shirt pocket anyhow
[22:47:23] <Tom_itx> unless he dresses funny
[22:47:32] <Tom_itx> which could be a possibility
[22:47:49] * Jymmm puts on his shirt one leg at a time!
[22:48:17] <frysteev> which would explain why his fly is always down
[22:48:38] <SWPadnos> in any case. bye! :)
[22:49:13] <Jymmm> Ok, I went to look at heatercores, the ap store has no clue w/o a year/make/model care. You think a coil of copper tubing would be as good?
[22:49:17] <Jymmm> SWPadnos: you leaving?
[22:49:26] <SWPadnos> yep
[22:49:38] <Jymmm> SWPadnos: Alrighty, have a nice holiday!!!
[22:49:40] <YK> so if one were to have connected all the hardware properly for the parport test with a 7i43 for 1 axis, what should they do, software-wise? Halcmd vs other emc2 __ ?
[22:49:52] <SWPadnos> oh yeah. it's a holiday
[22:50:18] <Jymmm> SWPadnos: no rest for the weary
[22:50:56] <SWPadnos> YK, you just need to load different hardware drivers, and connect signals to pins with different names (they'll be called hm2_7i43.gpio.00-out instead of parport.0.pin-00-out ...)
[22:51:31] <SWPadnos> the performance will go up but EMC2 will still be configured basically the same way
[22:52:43] <YK> SWPadnos: I... don't know how to connect signals to pins... or even how to assign names... or load a hardware driver for that matter...
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[22:53:01] <JT-Shop> you have a bit to learn yet then
[22:53:11] <SWPadnos> then you have some reading to do. your machine is not a simple one, and you will need to know something about what you're doing to get it to work
[22:53:18] <SWPadnos> enjoy. see you later :)
[22:53:34] * Jymmm nose NUT-TING!
[22:55:38] * Jymmm googles "Learn Thermodynamics in 24 hours"
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[22:56:06] <YK> 5 minutes of successful coding is all that is required for me to get it, yet the steps just aren't there. There's also a bridge between general information in manuals and specific application necessities. Is the HAL user's manual all that is needed?
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[23:01:55] <A2Sheds> note to self, next time SWPadnos ask him if he recalls that Atom board/industrial PC with the <1uS latency jitter
[23:04:54] <JT-Shop> YK: in the 2.4 Integrators manual you should find all you need, in the 2.4 HAL manual it focused on running HAL from a terminal
[23:06:27] <YK> JT-Shop: Thanks, I'll look into it.
[23:08:03] <JT-Shop> YK: if you read this you get a basic idea of how to use HAL with EMC
http://www.linuxcnc.org/docview/html/hal_basic_hal.html
[23:13:07] <YK> JT: I did read that, but I guess it will make more sense now that I know where to plug in the commands. Not knowing 1 + 2 makes multiplication really really tough to understand.
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