#linuxcnc | Logs for 2014-02-21

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[14:49:15] <PetefromTn> Mornin' folks..
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[15:13:58] <CaptHindsight> Jymmm: Most people treat lower schools like houses of worship with magic rules and double standards. They accept the magic and put their blind faith into them vs any rational trust. But you bring up an interesting point about "inherent" trust.
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[15:15:54] <CaptHindsight> Jymmm: sociopaths and psychopaths ignore what others might inherently trust in such as water and air belong to everyone
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[15:18:56] <CaptHindsight> http://www.abc.net.au/science/articles/2014/02/21/3948996.htm researchers have turned nylon fibres into artificial muscles that can lift 100 times more weight than human muscles.
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[17:15:51] <zeeshan|2> hi
[17:15:52] <zeeshan|2> !
[17:17:14] <jthornton> hi
[17:17:32] <zeeshan|2> i got modbus working last night
[17:17:35] <zeeshan|2> both write/read
[17:17:35] <zeeshan|2> :D
[17:17:43] <jthornton> nice
[17:18:11] <zeeshan|2> now i gotta spend some time trying to figure how to link the signals so g-code actually runs the spindle
[17:18:41] <jthornton> might look at the gs2 component
[17:18:57] <zeeshan|2> mvx9000rtu.frequency <- is a pin that the driver makes that you can enter a decimal number from 0 to 400hz.
[17:19:05] <zeeshan|2> what pin should i be linking that to?
[17:19:13] <zeeshan|2> hmm
[17:19:16] <zeeshan|2> ill google that
[17:20:08] <zeeshan|2> you're the author of the gs2 component!
[17:20:09] <zeeshan|2> :P
[17:20:23] <jthornton> no, I just did a tiny bit of work on it
[17:20:54] <zeeshan|2> could you explain how retval works
[17:21:03] <zeeshan|2> i didn't implement it for the write commands.
[17:21:04] <jthornton> http://git.linuxcnc.org/gitweb?p=linuxcnc.git;a=blob;f=src/hal/user_comps/gs2_vfd.c;h=6772f848135af002772cfda6f56696557bf7c913;hb=refs/heads/master
[17:21:47] <zeeshan|2> damn thats advanced
[17:21:53] <CaptHindsight> http://www.youtube.com/watch?v=NFF0QQIQDXE multi-axis freeform metal printing
[17:22:53] <zeeshan|2> interesting
[17:23:20] <zeeshan|2> retval is being used to hold the frequency value
[17:24:15] <zeeshan|2> 343 if (haldata->motor_hz<10) 344 haldata->motor_hz = 60;
[17:24:58] <zeeshan|2> if you setup your min_frequency and max_frequency on the vfd, it self-checks and blocks weird frequency values
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[17:25:13] <PetefromTn> zeeshan|2: Hey man glad to hear you got it working. I do not understand how if you have control linuxCNC just does not take care of the rest, is the control you have just the modbus stuff or is it intergrated into LinuxCNC, I am sure I don't know what I am talking about here LOL.
[17:25:33] <zeeshan|2> PetefromTn: you have a separate driver (modbus)
[17:25:47] <zeeshan|2> which communicates with the drives and creates new pins in hal that reference back to the driver
[17:26:17] <zeeshan|2> so say you want to know the motor output current, there is a pin called 'mvx9000rtu.outputcurrent' that communicates through the driver with the vfd and is being constantly updated
[17:26:54] <zeeshan|2> now if you wanted to show that information on your linuxcnc gui
[17:26:56] <PetefromTn> OOh I like that Output current thing ;)
[17:27:21] <zeeshan|2> you'd prolly need to use pyvcp to link the component to something gui
[17:27:42] <zeeshan|2> like if you know output current and output voltage, then you know output torque.
[17:28:37] <PetefromTn> Already have some of that setup here I got spindle up to speed and a bar graph showing spindle speed. Connor kinda showed me how to screw with that stuff so I might be able to figure out how to add another component readout.
[17:28:55] <zeeshan|2> right now im not even at the gui part :{
[17:29:05] <zeeshan|2> im trying to figure how to link the pins so that g-code can turn the spindle on and off
[17:29:19] <zeeshan|2> so if i write something like G01 S5000
[17:29:39] <zeeshan|2> G01 X0. Y0. S5000 i mean
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[17:29:45] <zeeshan|2> then the spindle actually goes to 5000 rpm ;p
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[17:33:14] <PetefromTn> You mean M3 s5000 LOL?
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[17:37:35] <zeeshan|2> well you can say spindle speed anywhere :P
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[17:37:55] <zeeshan|2> i usually have a habit of setting it at the G01 or G02
[17:38:00] <zeeshan|2> cause this is for turning material
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[17:38:13] <zeeshan|2> so the spindle speed needs to change to keep constant sfm.
[17:39:38] <PetefromTn> That is a sweet feature CSS.. I would want that on my lathe retrofit.
[17:40:13] <zeeshan|2> yea leaves an amazing surface finish that way
[17:41:19] <R2E4_> yoza!!
[17:41:26] <zeeshan|2> hi
[17:41:29] <zeeshan|2> brb FOOD time!
[17:41:32] <R2E4_> good after-early-noon
[17:44:20] <PetefromTn> R2E4_: He man how goes it?
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[17:45:29] <R2E4_> Good, you guys?
[17:45:41] <R2E4_> PetefromTn: Did you get the files off the machine?
[17:45:53] <PetefromTn> Okay
[17:46:00] <PetefromTn> Oh sorry man I forgot all about that.
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[17:46:12] <R2E4_> I havent had time to work on mu machine. Trying to fix QA issues at Ingersoll Rand
[17:46:17] <skunkworks> R2E4_, how goes the tuning?
[17:46:19] <PetefromTn> I am eatin some lunch right now but I gotta turn it on here in a bit..
[17:46:57] <R2E4_> 15 billion dollar company, and they cant machine 400 pieces correctly.
[17:47:09] <PetefromTn> I will get what you need here in a bit.
[17:47:17] <R2E4_> OK thnaks.
[17:47:39] <PetefromTn> Are you doing work for Ingersol Rand?
[17:48:29] <R2E4_> They are special order, they machined the piece 45degrees off. 400 of them in stainless, and every one of them is like that. I'm wondering if they just passed the QA department....haha
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[17:48:48] <R2E4_> I work for them.
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[17:58:40] <PetefromTn> Oh nice..
[18:00:38] <Jymmm> CaptHindsight: Yeah, I just need a couple other examples of entities we inherently trust like that.
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[18:00:56] <IchGuckLive> hi all
[18:01:16] <kb8wmc> IchGuckLive hello sir
[18:01:24] <IchGuckLive> ;-)
[18:03:55] <IchGuckLive> im making a video on 3D going al open source so lets be back in around 15 min !!
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[18:04:01] <zeeshan|2> R2E4_: hook me up with a nice 80 gallon IR compressor!
[18:04:02] <zeeshan|2> :D
[18:04:21] <R2E4_> IR makes really nice compressors
[18:04:32] <zeeshan|2> yyes
[18:04:50] <zeeshan|2> i missed a good deal on it a while back :{
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[18:06:49] <zeeshan|2> guys help me!
[18:07:21] <zeeshan|2> net spindle-fwd motion.spindle-forward => parport.0.pin-16-out <- sample of what the forward spindle should be associated with
[18:07:55] <zeeshan|2> problem is, im not using a parport signal, my signal is 'mvx9000rtu.forwardreverse' which is 0 when forward and 1 when reverse
[18:08:04] <zeeshan|2> how do i associate it :P
[18:08:32] <Jymmm> zeeshan|2: for assistance, Insert credit card here --> [ ]
[18:08:42] <zeeshan|2> 69696969696969696
[18:08:56] <Jymmm> Invalid, please try again.
[18:11:05] <cpresser> zeeshan|2: use a logic-function. lut5 would work
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[18:28:02] <IchGuckLive> hi
[18:28:16] <IchGuckLive> zeeshan|2: what a game tonight your girls where amazing
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[18:29:03] <zeeshan|2> yes
[18:29:07] <zeeshan|2> last 30 seconds
[18:29:07] <zeeshan|2> win!
[18:29:17] <zeeshan|2> and then ot win.
[18:29:39] <IchGuckLive> the lucky shot of the us girls faild it hited with the worlds worst noice the edge post
[18:29:58] <IchGuckLive> and also now another gold in skiing slalom
[18:30:24] <zeeshan|2> hehe
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[18:36:56] <Jymmm> CaptHindsight: We teach children never to get into cars with strangers, yet we get into cabs/taxis due to implicit trust?
[18:39:41] <Jymmm> CaptHindsight: or is that a stretch?
[18:46:21] <cradek> Jymmm: sometimes children are taught simple things, because they have limited judgement, that become more complex and nuanced as they grow up: "Don't get in cars with strangers", "Don't ever lie", "Santa/Jesus is watching you always".
[18:49:34] <Jymmm> cradek: I'm looking for examples of things we "implicitly trust". We implicitly trust school with the welfare of children even beyond the letter of the law.
[18:50:28] <Jymmm> cradek: We implicitly trust a taxi, so we as adult get into a strangers car.
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[18:51:36] <Jymmm> Though the taxi exmple may be a stretch, not sure if it's a good example.
[18:55:34] <Jymmm> cradek: I'm trying to come up with examples of where implicit trust exceeds the letter of any law.
[18:55:52] <Jymmm> ...or lack there of.
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[19:39:22] <IchGuckLive> by dont break your bit till tomorrow
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[19:58:31] <Belerafon> Hi. I again about kernel rebuild for CAN driver. Where can I found manual about compile linuxcnc kernel with real time patches? I download vanila 2.6.32 source, do a make oldconfig, do compile kernel and have got "arch/x86/lib/cache-smp.c:20: error: variable ‘op’ has initializer but incomplete type".
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[21:30:57] <CaptHindsight> Jymmm: isn't trust always assumed? Maybe an example of the trust you're looking for is the trust between solders in the same outfit during war.
[21:35:11] <CaptHindsight> I'm trying to find a mini-itx case that is either a short 2U or a ~4" high in a desktop style. Not many to choose from.
[21:41:55] <Deejay> gn8
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[21:52:51] <Tom_itx> CaptHindsight, too big? http://www.newegg.com/Product/Product.aspx?Item=N82E16811154091
[21:53:18] <Tom_itx> i've got a 525 in one of those
[21:54:54] <Tom_itx> http://www.mini-box.com/s.nl/sc.8/category.87/.f
[21:55:41] <CaptHindsight> Tom_itx: is there enough room in there for another 200w power supply and a 7i76?
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[21:56:47] <CaptHindsight> the Apex case just might
[21:59:18] <CaptHindsight> http://www.apextechusa.com/images_u//mi/mi100e.jpg http://www.apextechusa.com/images_u//mi/mi100g.jpg
[21:59:29] <MrSunshine> negative spiral router bits do they pose a problem with chip evac if you do not route all the way throught the material ? =)
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[21:59:43] <Connor> CaptHindsight: You planning on putting the mobo in it ?
[22:00:39] <CaptHindsight> Connor: everythimg except for 2-3 nema17 stepper motors
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[22:01:20] <Connor> You'll have room for a mobo, 1 PCI card, and hard drive.. I don't think you'll have enough room for the 7i76 or another PSU..
[22:01:38] <Loetmichel> my LinuxCNC computer sits under the mill
[22:01:40] <CaptHindsight> using a 2.5' drive
[22:01:49] <Loetmichel> in an old 286 pizzacase
[22:01:51] <Connor> Unless the PSU or the 7i76 is the size of a 5.25" drive
[22:02:03] <Loetmichel> http://www.cyrom.org/palbum/main.php?g2_itemId=12265
[22:02:04] <CaptHindsight> Connor: it is
[22:02:13] <Loetmichel> http://www.cyrom.org/palbum/main.php?g2_itemId=12250
[22:02:23] <Loetmichel> http://www.cyrom.org/palbum/main.php?g2_itemId=12569
[22:02:33] <Loetmichel> ... a bit crammed in there but works very well ;-)
[22:02:41] <Connor> Not sure how you would get the 7i76 cable routed to the interface card...
[22:02:52] <Connor> those cases are very tight.
[22:03:05] <CaptHindsight> I'd like it to fit into a carry-on and not freak out the TSA
[22:03:40] <CaptHindsight> Connor: header conn to db
[22:04:24] <Connor> huh?
[22:05:10] <Connor> I have one of those cases.. I just don't see both a extra PSU AND the 7i76 fitting..
[22:05:33] <CaptHindsight> http://www.mesanet.com/graphics/parallel/6i25lpcolo.png using the header vs the db on the left
[22:06:03] <Connor> how big is the PSU ?
[22:06:05] <CaptHindsight> maybe two cases then
[22:06:33] <CaptHindsight> 4" x 4" x 1"
[22:06:57] <CaptHindsight> with a parallel cable between them
[22:07:31] <Connor> You MIGHT be able to put the PSU in the 3.5" bay area if you mod the case.. and mount the HD on the ouside rail.
[22:07:41] <Connor> leaving the 5.25" bay open for the 7i76..
[22:07:53] <CaptHindsight> I'm about ready to make my own case :)
[22:08:18] <Connor> You probably would be better served if you desire this to be a carry on and want it all in a single box.
[22:08:23] <Connor> what's it going to drive ?
[22:09:30] <CaptHindsight> EPP to two stepper drivers would take up less space
[22:09:42] <Loetmichel> Connor: if you have a running CNC: whre is the problem?
[22:09:54] <Loetmichel> i do that all the time ;-)
[22:10:31] <CaptHindsight> it's for a small 2" x 2" travel stage
[22:11:02] <Connor> CaptHindsight: I've taken humanoid robot through TSA for carry on..
[22:11:39] <CaptHindsight> Connor: yeah, and others are having their aluminum foil confiscated
[22:11:40] <Connor> complete with 2 LiPo battery packs (sealed in ziplock bags) and airsoft BB guns.. barrels detached.. -- integrated into the robot.
[22:11:48] <CaptHindsight> heh
[22:12:28] <Connor> I just tell the guy, I have a robot in the suite case.. open it up so they can run it through xray machine..
[22:12:30] <CaptHindsight> good thing it didn't become self aware
[22:13:02] <Connor> http://www.youtube.com/watch?v=D8jNk9U_YXA
[22:13:14] <Connor> not the best video of him...
[22:13:23] <CaptHindsight> how tall is it?
[22:13:39] <Loetmichel> hmmm
[22:13:44] <Connor> 15 to 18"
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[22:13:49] <Loetmichel> looks not really steady at walking
[22:13:55] <Loetmichel> seen better.
[22:13:56] <Connor> Was having issues..
[22:14:06] <CaptHindsight> jet lag
[22:14:16] <Loetmichel> maybe better algorithms and stronger servos would do the trick
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[22:14:18] <Connor> gotta realize.. most humanoids don't have all that extra weight up top
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[22:14:33] <Connor> I have it walking better now..
[22:14:49] <Loetmichel> have you seen the spider?
[22:15:01] <Connor> The feet needed to be stiffer, and need to add a bit of weight to the front of the feet..
[22:15:09] <Jymmm> CaptHindsight: No, that would be an earned trust imo. But that is why I'm also looking for examples too =)
[22:15:18] <Loetmichel> http://www.youtube.com/watch?v=Yo2TUIEXJig
[22:15:29] <Loetmichel> THATS what i call "organic behaviour" ;)
[22:15:46] <CaptHindsight> Jymmm: is there any other kind? :)
[22:15:51] <Connor> I've seen one similar..
[22:16:11] <Jymmm> CaptHindsight: Yes. implicit trust =)
[22:16:21] <CaptHindsight> blind faith
[22:16:36] <CaptHindsight> see religion
[22:16:47] <Jymmm> CaptHindsight: No not theology, trust.
[22:17:24] <CaptHindsight> you'll have to clearly define it all, otherwise it will get lost in semantics
[22:18:01] <Jymmm> CaptHindsight: We have an implicit trust in schools will looking out for the welfare of children.
[22:18:20] <CaptHindsight> Jymmm: who is the "we"?
[22:18:38] <Jymmm> you are getting caught in semantics. anyone.
[22:18:40] <CaptHindsight> I haven't since about 3rd grade
[22:18:52] <Jymmm> we being parents
[22:19:41] <CaptHindsight> thats blind faith
[22:19:55] <Jymmm> No, it's a trust.
[22:20:13] <CaptHindsight> and certainly not based on historical evidence, have you ever been to a school?
[22:20:32] <Jymmm> I'm not loking for historicla events
[22:20:51] <Jymmm> I'm looking for examples of "implicit trust"
[22:21:24] <Jymmm> There being bad people in the world is implied.
[22:23:27] <CaptHindsight> sounds to me like you're caught up in some ideology about schooling, so I'll depart from further discussion on the matter
[22:29:11] <Jymmm> "3. Having no doubts or reservations; unquestioning: implicit trust."
[22:31:43] <MrSunshine> hmm these cmt bits .. anyone know where the heck to find the recommended chiploads etc for them ? cant find a single reference on their page about it
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[22:35:07] <GammaX> PetefromTn, did you recomend a probe the other day I stepped away and never saw a response.
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[23:22:57] <zee-Lathe> hey guys
[23:23:02] <zee-Lathe> how do i invert a signal in hal
[23:23:18] <zee-Lathe> for example, i want to invert the pin vfd.fault
[23:24:57] <zee-Lathe> bah ill just invert it in the driver.
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[23:29:59] <PCW_> you can use the "not" comp
[23:32:11] <zee-Lathe> ah shit
[23:32:17] <zee-Lathe> i changed the driver =/
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[23:37:47] <zee-Lathe> yay
[23:37:53] <zee-Lathe> took a while but its all linked now
[23:38:10] <zee-Lathe> so when i press e-stop in software or externally, the VFD goes in fault mode
[23:38:22] <zee-Lathe> when i remove e-stop vfd goes back in active mode
[23:38:36] <zee-Lathe> running m03 and m04 at different spindle speeds works
[23:38:40] <zee-Lathe> any other tests i should do?
[23:39:28] <PetefromTn> GammaX: sorry man I did not, you had said you were running an RF45 machine and I mentioned the renishaw which you could use but there are a couple cheaper ones out there such as the whitehorse probe which some folks seemed to have isses with so I would stay away from it most likely. Other than that I don't know of any decent well recommended ones available worth talking about.Sorry..
[23:40:01] <PetefromTn> Run a pseudo tap cycle fwd and reverse quickly?
[23:45:21] <zee-Lathe> PetefromTn, lol
[23:45:33] <zee-Lathe> man i just realized my exetrnal e-stop button doesnt work.
[23:45:38] <zee-Lathe> it disables the charge pump and steppers
[23:45:45] <zee-Lathe> but the vfd doesnt go in fault mode
[23:46:02] <zee-Lathe> the only way steppers disable, vfd goes in fault is if i press the gui e-stop button
[23:46:10] <zee-Lathe> something wrong with the hal file.
[23:47:55] <zee-Lathe> when i press gui e-stop both the signals "estop-ext" and "estop-out" go to fault
[23:48:15] <zee-Lathe> but when i press the external e-stop button only "estop-ext" goes to false
[23:50:27] <zee-Lathe> nm got it to work.
[23:50:31] <zee-Lathe> damn hal file is so picky!
[23:51:26] <PetefromTn> It's gotta be just right huh..
[23:52:10] <zee-Lathe> yea man
[23:52:26] <zee-Lathe> what i like about hal is it really stops you from self destructing the machine
[23:52:32] <zee-Lathe> has a lot of failsafes built in.
[23:52:46] <zee-Lathe> the people who came up with the hal system are damn good programmers
[23:55:21] <PetefromTn> Yeah but you can still muck it up if you don't know what you are doing. Either that or LinuxCNC will error out all the time until you figure out where you screwed up. That is actually better than catastrphic failure I suppose....
[23:56:50] <zee-Lathe> hehe
[23:57:05] <zee-Lathe> dude i can finally say
[23:57:13] <zee-Lathe> that the vfd is working well through g-code.
[23:57:16] <zee-Lathe> and is safe as well
[23:57:50] <zee-Lathe> now its all easy work like making the gui to display a load meter, motor current output etc