#linuxcnc | Logs for 2014-10-21

[00:04:38] <ssi> well this isn't going well :/
[00:09:57] <jdh> can you change it to something more common?
[00:10:28] <ssi> ha no
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[00:24:44] <ssi> PCW: so I'm seeing 4.4V on the 5V encoder pins on the 7i77
[00:24:50] <ssi> is that directly from the PC power supply?
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[00:25:31] <zeeshan> ssi
[00:25:32] <zeeshan> i got my VFD:D
[00:25:47] <zeeshan> this sumitomo drive actually looks nice
[00:26:12] <PCW> Yes so normally you should supply 5V externally and jumper the 7I77 and 5I25 for no cable power
[00:26:28] <ssi> yeah I think I might have to do that
[00:27:02] <PCW> Especially if you have a long cable/ high current encoders
[00:27:12] <ssi> I'm having all sorts of weird problems getting these new drives to work, and I suspect it's the hall effect inputs
[00:27:20] <ssi> ok so here's a question for you
[00:27:26] <ssi> teh drives have a 6V supply to run hall sensors
[00:27:30] <ssi> and it measures 6.3V
[00:27:40] <ssi> think that'd be kosher to use to drive the encoders, at least for the short term?
[00:27:44] <ssi> or is that dangerous
[00:28:12] <PCW> Not good because encoders may use TTL parts
[00:28:24] <ssi> ok
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[00:35:59] <ssi> well, that might be one of my problems
[00:36:07] <ssi> NONE of these cables have continuity at all
[00:36:23] <zeeshan> maybe a break?
[00:36:29] <zeeshan> :D
[00:36:31] <ssi> no, it's bad termination
[00:36:40] <zeeshan> dude
[00:36:45] <zeeshan> dont stress about your spindle!
[00:36:47] <zeeshan> try your amc drives!! :D
[00:36:49] * zeeshan hides
[00:36:52] <ssi> that's what I'm working on
[00:36:54] <zeeshan> oh
[00:36:59] <zeeshan> they pwoer up?
[00:37:05] <ssi> yes
[00:37:10] <zeeshan> :D: :D:D:D
[00:37:12] <zeeshan> GOOD
[00:37:13] <zeeshan> !!!
[00:37:23] <zeeshan> so do you just give it power
[00:37:28] <zeeshan> without any other wires conencted?
[00:37:38] <zeeshan> to check if its good or nfg
[00:37:45] <ssi> it's not that easy
[00:37:47] <zeeshan> or will that fault it
[00:42:21] <zeeshan> im about to power up my spindle motor for the first time
[00:42:22] <zeeshan> oh noes
[00:42:22] <zeeshan> :D
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[00:53:06] <zeeshan> i hope i dont blow up this 12 awg wire
[00:53:17] <zeeshan> to temporarily power up the spindle
[00:53:17] <zeeshan> :/
[00:55:11] <ssi> you gunna cut steel with it during your test run?
[00:55:17] <zeeshan> haha no
[00:55:22] <ssi> then you'll be ok
[00:55:23] <zeeshan> just wanna see it spin
[00:55:30] <zeeshan> to check for noises and shit
[00:55:45] <zeeshan> can i help with your servos
[00:55:47] * zeeshan wants to see em run
[00:55:51] <ssi> yeah
[00:55:53] <ssi> come wire the other two
[00:55:57] <zeeshan> haha
[00:55:59] <ssi> finish my verilog
[00:55:59] <zeeshan> you just need to do one!
[00:56:00] <zeeshan> to check
[00:56:09] <zeeshan> lol i dont know vhdl or verilog
[00:56:14] <zeeshan> thats for eelectrical engineers!
[00:56:17] <zeeshan> .......and ssi
[00:56:18] <zeeshan> :)
[00:56:40] <ssi> I'm an everything engineer
[00:56:53] <zeeshan> i learned something new today
[00:57:02] <zeeshan> the lock nut that holds collets (ER series)
[00:57:06] <Tom_itx> i try to do that every day
[00:57:16] <zeeshan> actually releases the taper lock
[00:57:18] <zeeshan> when you try to loosen it
[00:57:21] <ssi> yes
[00:57:26] <ssi> cause the nut has an offset ring in it
[00:57:30] <zeeshan> this student today didnt lock it into the lock nut
[00:57:30] <ssi> that the groove of the collet snaps into
[00:57:39] <zeeshan> so the collet was jammed in there
[00:57:39] <zeeshan> haha
[00:57:41] <Tom_itx> oops
[00:57:53] <zeeshan> hammer and aluminum worked
[00:58:13] <zeeshan> Tom_itx: me too man
[00:58:15] <zeeshan> i like learning
[00:58:21] <zeeshan> even if i know how to do something a certain way
[00:58:25] <zeeshan> i try to see how others do the same thing
[00:58:32] <zeeshan> their way may be better, easier, etc
[00:59:08] <zeeshan> damn it i cant find my 12awg 3 phase soow cable
[00:59:18] <Tom_itx> problem these days is my fifo buffer may be full
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[00:59:25] <ssi> Tom_itx: I hate that
[00:59:31] <Tom_itx> heh
[00:59:31] <ssi> getting old sucks
[00:59:38] <zeeshan> im about to hook up the vfd
[00:59:39] <zeeshan> using this wire:
[00:59:53] <zeeshan> romex
[01:00:02] <zeeshan> 14 gauge
[01:00:02] <zeeshan> haha
[01:00:10] <Tom_itx> nobody uses romex anymore
[01:00:15] <ssi> thinner than I'd like, but again unloaded it'll probably be fine
[01:00:31] <zeeshan> im going through the manual too
[01:00:36] <zeeshan> this thing has a lot of terminals on the power side
[01:01:00] <zeeshan> more than the typical L1 L2 L3 , r s t
[01:04:10] <ssi> k well
[01:04:16] <ssi> in torque mode it's working
[01:04:20] <ssi> in velocity mode it's running away
[01:04:28] <zeeshan> NICE
[01:04:38] <zeeshan> you bought these from the same guy right?
[01:05:29] <ssi> I don't think so
[01:05:33] <ssi> I think you got them somwhere else
[01:05:46] <zeeshan> o
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[01:11:09] <PCW> velocity mode will run away if the encoder counts the wrong way
[01:12:43] <ssi> I think due to the low 5v bus it wasn't counting correctly
[01:12:46] <ssi> I tried both directions
[01:14:55] <ssi> hah so I added a lab supply to 7i77 for a proper 5v supply
[01:14:59] <ssi> and now the amp won't enable at all
[01:15:00] <PCW> if you supply external 5V power to the 7I77 make sure you change the cable power jumpers on both the 7I77 and the 5I25
[01:15:46] <ssi> yeah I powered it up with only the jumper on the 5i25 flipped and it wasn't happy
[01:15:50] <ssi> I hope I didn't hurt something
[01:16:14] <ssi> oh I bet the enables aren't working because it's part of the analog processor, which is sserial
[01:16:19] <ssi> and I need to restart halrun since it bounced
[01:16:19] <ssi> or something
[01:16:45] <ssi> yeah that was it
[01:17:37] <ssi> hah well
[01:17:40] <ssi> that drive was good
[01:17:41] <ssi> now it's on fire
[01:17:52] <PCW> thats not so good
[01:17:55] <ssi> i think that means it's time to quit for the night
[01:18:06] <pfred1> I felt that way earlier
[01:18:22] <CaptHindsight> the fire is not a feature?
[01:18:27] <ssi> don't think so
[01:18:47] <pfred1> FET = Fire Emitting Transistor
[01:19:41] <pfred1> well, I think my basic design is sound I just have to rebuild it using better materials
[01:20:58] <ssi> so much for input fuses, eh
[01:21:11] <pfred1> after I blew up a PSU here I added a fuse
[01:21:35] <Jymmm> FET = Fucked Electron Transit.
[01:22:09] <pfred1> on the plus side my machine seems to run better off the unregulated transformer
[01:22:23] <Jymmm> pfred1: stepper?
[01:22:26] <pfred1> yes
[01:22:36] <Jymmm> Yeah, would expect it to.
[01:22:39] <pfred1> unregulated I get another 1.6 volts
[01:22:53] <pfred1> it makes a difference
[01:23:02] <ssi> ah well the fuse did actually blow
[01:23:05] <ssi> that must be what put the fire out
[01:23:28] <Jymmm> pfred1: regulated and BEMF kinda clash.
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[01:24:08] <pfred1> Jymmm it may have I added a big cap at my power distribution block to soak up whatever is going on
[01:24:31] <pfred1> well, not too big, but big enough
[01:24:51] <Jymmm> pfred1: Did you ever see Mariss stepper paper?
[01:24:58] <pfred1> probably
[01:25:02] <Jymmm> k
[01:25:13] <pfred1> I've read a few things he's written
[01:25:34] <pfred1> my drives aren't on par with his but hey, they only cost me $10 to make
[01:26:08] <Jymmm> I owuldn't mind a pure smfr, but hard to find cheaply
[01:26:14] <Jymmm> xmfr*
[01:26:32] <pfred1> I got the xformer I'm using out of a PDP 11/34
[01:26:40] <Jymmm> ?
[01:26:59] <pfred1> it was the step down transformer in a mini computer
[01:27:04] <Jymmm> ah
[01:27:11] <pfred1> size of a closet
[01:27:14] <Jymmm> heh
[01:27:23] <pfred1> I ganged up the two 13.5V windings in it
[01:27:28] <pfred1> 13,4
[01:27:39] <Jymmm> I can find the voltages, just not the VA
[01:27:48] <pfred1> this thing is like a cinder block
[01:27:54] <Jymmm> and they NEVER pur markings on them, bastards
[01:27:57] <pfred1> it is a huge xformer
[01:28:26] <pfred1> well one thing you have to worry about is when you rectify, then filter your volts goes up to peak
[01:28:35] <pfred1> as opposed to RMS
[01:29:03] <pfred1> so you always end up with more DC volts than the xformer is AC rated to put out
[01:29:25] <pfred1> plus xformers seem to run a bit hot anyways compared to their ratings
[01:29:35] <pfred1> they give you value for your buck so to speak
[01:30:15] <Jymmm> Lovely http://www.cbc.ca/news/canada-post-ends-home-delivery-today-for-thousands-1.2805833
[01:30:43] <CaptHindsight> ok, show of hands, who would wear these? http://www.3ders.org/articles/20141020-morgenrot-3d-printed-eyewear-wins-innovation-award.html
[01:31:21] <Jymmm> martiGra?
[01:31:22] <pfred1> CaptHindsight Elton John
[01:31:52] <pfred1> I have seen very few people that actually do anything useful with 3D printers
[01:31:52] <ssi> CaptHindsight: hipsters
[01:32:02] <ssi> pfred1: I do useful things with them occasionally
[01:32:10] <CaptHindsight> I guess they are not shooting for understated elegance
[01:32:12] <ssi> a handful of the parts of my laser cutter are 3d printed
[01:32:19] <ssi> tube mounts, mirror mounts, endstops
[01:33:46] <pfred1> I need to iron the bugs out of my machine
[01:33:56] <pfred1> I guess it is to be expected
[01:34:06] <ssi> hey at least yours isn't full of fire
[01:34:14] <pfred1> ssi not yet
[01:34:28] <pfred1> the possibility definitely exists though
[01:35:01] <pfred1> I made all of my own electronics
[01:35:28] <pfred1> I have to say it is the only part of my machine I am completely satisfied with right now
[01:35:38] <pfred1> well, the Z axis seems to be working good too
[01:35:54] <pfred1> but the X, and Y linear guides leave much to be desired
[01:36:48] <pfred1> I think I know of a way I can rectify it but it is going to be a big job
[01:37:10] <pfred1> oh well, I wanted to see if I could take the easy way out
[01:41:30] <pfred1> nothing worthwhile is ever easy I suppose
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[01:52:04] <pfred1> so, does anyone want to check out my elcheapo CNC?
[01:55:23] <gennro> sure
[01:55:48] <pfred1> http://i.imgur.com/T8GwQJ8.jpg
[01:56:38] <pfred1> skate bearings deluxe!
[01:57:00] <gennro> I see that, i'm new to the diy cnc
[01:57:22] <pfred1> my whole machine didn't cost me more than $300 to build
[01:57:34] <gennro> how well does it work?
[01:57:42] <pfred1> in the world of CNC that is pretty cheap
[01:58:03] <pfred1> well, I need to put some hard facing on the X, and Y linear guides
[01:58:06] <gennro> i'm wanting to build a laser engraver myself
[01:58:14] <pfred1> I figure screwing some angle iron there should do it
[01:58:37] <pfred1> well laser is easy because you don't need to move a big mass, or exert pressure
[01:58:53] <pfred1> light is exactly that it is light
[01:59:19] <gennro> I plan on basing mine off this guys http://der-frickler.net/technik/lasergravierer#lightbox[gal-b657ba3df9000d1dea2876c031fc]/1/
[01:59:22] <pfred1> light is very light in fact
[01:59:31] <gennro> yup
[01:59:41] <pfred1> you can run NEMA 17s
[01:59:54] <pfred1> heck you could probably pull steppers out of floppy drives
[02:00:14] <gennro> lol, yeah I have 1 nema 17 already
[02:00:23] <pfred1> yeah 30 oz/in more than enough
[02:00:53] <gennro> use some easy drivers for the stepper driver, arduino uno running grbl
[02:01:05] <pfred1> this is LinuxCNC
[02:01:14] <pfred1> we don't play with gerbils here
[02:01:24] <gennro> yeah I know, but every other cnc channel is dead
[02:01:41] <pfred1> I donno used PCs you can't beat the price
[02:01:54] <pfred1> I got the one I'm running LInuxCNC on for $5 at a thrift store
[02:02:32] <gennro> you need a parallel port correct?
[02:02:44] <pfred1> yeah those cards cost another $20
[02:03:11] <pfred1> the PC has a pp in it but I didn't want to risk it with my homebrew electronics it probably would have worked fine though
[02:03:36] <pfred1> my buffered parallel port break out board works pretty good
[02:03:41] <gennro> gotcha
[02:04:15] <pfred1> it draws almot nothing off the parallel port then gives me 25ma an output
[02:04:19] <gennro> Was thinking about using a raspberry pi as a controller, but my programming isn't that great
[02:04:42] <pfred1> well, I boosted it for my dual axis drives I added another buffer IC to give me 50ma
[02:05:25] <pfred1> my optical isolators draw 12ma each and I figured that was too close to the IC limit
[02:05:39] <pfred1> so for 25 cents I threw in another chip
[02:06:39] <pfred1> you can just run one of those imported TB6560 boards
[02:06:53] <pfred1> but the documentation that comes with those things is less than worthless
[02:07:04] <gennro> so pretty much it uses the parallel port as a GPIO to interface with the stepper drivers, and etc?
[02:07:49] <pfred1> yeah you see the big beige data cord running int othe front of my machine?
[02:08:00] <gennro> yup
[02:08:01] <pfred1> it is right over the keyboard kind of
[02:08:07] <pfred1> that is a parallel port cable
[02:08:52] <pfred1> http://www.instructables.com/id/Parallel-Port-Break-Out-Board-BOB/
[02:08:57] <CaptHindsight> looks like a spruce gantry mill
[02:09:02] <pfred1> I wrote an article about my break out board
[02:09:28] <CaptHindsight> I'd like to fashion one from bubinga or purpleheart
[02:09:53] <pfred1> CaptHindsight I used a piece of plywood I found on the side of the road and 2x4 studs
[02:10:02] <pfred1> the pine the bearings are digging into it
[02:10:11] <pfred1> I need to add some angle iron there
[02:10:35] <CaptHindsight> pfred1: I am trying to see what actually moves on your machine
[02:11:14] <pfred1> well the X axis is the easiest to see there are two black stepper motors screwed to that front board
[02:11:40] <pfred1> they're connected to a pair of 1/2x10 TPI acme threaded rods
[02:12:04] <pfred1> then I made HDPE nuts for those and they are connected to the Y axis gantry
[02:12:06] <gennro> thanks for the info so far pfred1, i'll read more into linuxcnc, and skip the arduino setup, cause I plan on building a cnc for doing wood if I can get the hang of it
[02:12:37] <pfred1> gennro yeah my ultimage goal is to do decorative wood routing
[02:12:46] <pfred1> like signs and designs
[02:13:00] <gennro> thats what I would like to do
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[02:13:25] <pfred1> I like to woodwork but loking at what I do objectively it just doesn't pop
[02:13:26] <gennro> but I figure a small laser engraver would be a place to get started and cheap
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[02:14:07] <CaptHindsight> are the blue ~1x1's the linear cam bearings?
[02:14:49] <pfred1> maybe I can show another picture and you can see how it works?
[02:14:53] <pfred1> let me find the link
[02:15:31] <pfred1> http://i.imgur.com/lLAoq.jpg
[02:15:50] <CaptHindsight> I see
[02:15:53] <pfred1> cool
[02:16:10] <pfred1> I need to put some angle where the bearings contact
[02:16:36] <pfred1> my design is a bit more elaborate than a 3 motor but I can use cheaper motors and drives with it
[02:16:42] <pfred1> a lot cheaper
[02:17:06] <pfred1> there is actually a lead on the other side
[02:17:11] <CaptHindsight> is the challenge to see how little you can spend?
[02:17:18] <pfred1> yeah pretty much
[02:17:25] <pfred1> anyone can go out and spend thousands
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[02:17:41] <pfred1> I was shooting for $200 but I ran over that a bit
[02:18:09] <CaptHindsight> and what is the goal for accuracy, repeatability, durability etc?
[02:18:25] <pfred1> 200 IPM for $200
[02:18:46] <CaptHindsight> +/- 1/4"
[02:19:24] <pfred1> well once i get the linears straightened out I think it should be fairly accurate
[02:20:14] <CaptHindsight> http://www.youtube.com/watch?v=8PSG2al1Sus Homebuilt DIY pipe Gantry CNC
[02:22:16] <pfred1> CaptHindsight this is the fractal example that comes with LinuxCNC http://i.imgur.com/ATX29wd.jpg
[02:23:03] <pfred1> my machine drew that with a pencil in it
[02:24:04] <pfred1> it ain't perfect but it is better than I can do
[02:24:31] <gennro> looks good for 300 bucks, better then what I have
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[02:24:56] <pfred1> like I said once I put some steel up on those rails I think I'll be onto something
[02:25:34] <pfred1> the wood has compressed about an 1/8" each rail so that added a lot of slop
[02:26:38] <pfred1> CaptHindsight heh I've seen this video'
[02:27:34] <pfred1> this guy must have bought a couple 100 packs of skate bearings
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[02:52:00] <Rab> Wow @ video, why didn't the guy use thicker pipe for the rails? That looks about as rigid as a spring mattress.
[02:55:56] <ssi> my favorite thing in the world is when ISE flips its shit and starts popping up thousands of "unexpected error" messages
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[03:11:48] <pfred1> Rab people seem to have a lot of deflection issues with pipe even fairly large diameter pipe
[03:12:29] <Rab> pfred1, I can imagine so.
[03:12:40] <pfred1> it is actually worse than I imagine
[03:12:56] <pfred1> I'd think pipe would be more rigid than it seems to be
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[03:21:49] <ssi> pfred1: it's very rigid in tension or compression, but not so much shear
[03:22:51] <pfred1> ssi I've seen people use 3" diameter pipe across 3 feet and complain about it deflecting on them
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[03:23:31] <pfred1> to see it it looks like more than enough to me
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[03:24:21] <tjtr33> diy cheap hipower microscope NasaTechBriefs http://video.techbriefs.com/video/High-Powered-3D-Printed-Microsc;Electronics-Computers
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[03:27:10] <ssi> pfred1: pipe welded to angle iron is a lot stiffer
[03:27:27] <ssi> hell just angle iron is stiffer if it's loaded correctly
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[03:29:20] <pfred1> I have to get some angle iron for my machine
[03:30:10] <pfred1> mo' money!
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[04:23:07] <Connor> http://www.wbir.com/story/news/local/2014/10/20/tennessee-death-row-inmate-dies-of-natural-causes/17639399/ Pisses me off.. I wanted to push the button to do this guy in..
[04:24:10] <ssi> :/
[04:24:30] <Connor> ssi: Murdered my Uncle. :(
[04:24:36] <ssi> yeah I sorta put that together
[04:25:15] <CaptHindsight> http://www.youtube.com/watch?v=wWNgL3xAj4c cutting and forging on a lathe
[04:27:09] <Connor> DANG it. Execution date scheduled for May 12, 2015
[04:27:40] <ssi> that sucks a lot
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[06:41:33] <Deejay> moin
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[08:00:44] <Cylly> *harhar* $me just got a call from an ex neighbor... "hi loet, i have problems with my Computer, can you come by fix it?" ($me after digging my brain to connect the voice to a name) "sorry, inge, i left [your city] in 2003, i live 260km away now..." people sometimes... :-)
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[08:59:02] <ReadError> http://sploid.gizmodo.com/these-metal-machining-super-slow-motion-videos-are-so-d-1648336605?utm_campaign=socialflow_gizmodo_facebook&utm_source=gizmodo_facebook&utm_medium=socialflow
[08:59:05] <ReadError> pretty sweet
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[09:25:16] <archivist> ReadError, you should see the slowmo of built up edge not included in that set
[09:25:28] Guest91432 is now known as aude
[09:27:14] <archivist> google built up edge youtube
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[09:42:32] <ReadError> https://www.youtube.com/watch?v=uwh3ouvzSLk ?
[09:44:49] <archivist> that is one of them showing it, gives a terrible finish to your work
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[13:26:19] <_methods> get ready for a flood of the mentally challenged
[13:26:33] <archivist> oh dear
[13:26:38] <_methods> http://makezine.com/2014/10/21/first-look-inventables-carvey/
[13:27:01] <_methods> it's cnc made simple
[13:28:07] <archivist> cardboard carving for idiots
[13:28:20] <_methods> https://pbs.twimg.com/profile_images/1695889681/20080802_stiller.jpg
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[13:40:24] amnesic_away is now known as amnesic
[13:41:34] <CaptHindsight> heh the article was written by someone from the Chicago Hackerspace
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[13:46:44] <zeeshan> ssi
[13:46:47] <zeeshan> wtf happened mate
[13:46:58] <zeeshan> yesterday night i was like hooking up the vfd
[13:47:07] <zeeshan> and im like im gonna lay down for a bit, i and i passed the F out
[13:49:35] <CaptHindsight> https://wiki.pumpingstationone.org/Bridgeport_Knee_Mill I wonder what it takes to become authorized to use it?
[13:50:07] <zeeshan> :)
[13:50:11] <CaptHindsight> Contact Danger Committee, Area Host
[13:50:26] <zeeshan> cute lil brideport
[13:51:28] <CaptHindsight> https://wiki.pumpingstationone.org/Tier_1_Cold_Metals_Authorization WTF?
[13:52:10] <zeeshan> CaptHindsight:
[13:52:13] <zeeshan> its shit like this
[13:52:20] <zeeshan> which made me want to get my own machines long time ago
[13:52:30] <zeeshan> when i started fabricating parts in 2003
[13:52:39] <zeeshan> i realized how much machine shops rape you for a simple job
[13:52:46] <zeeshan> cause of the overhead they're dealing with
[13:52:55] <zeeshan> but some shops will quote you like 350 for a job
[13:52:59] <zeeshan> and then another will quote you 800
[13:53:04] <zeeshan> to put o-ring grooves in 4 flanges
[13:53:05] <zeeshan> lol
[13:53:28] <_methods> it depeds on what equipment they have and how busy they are
[13:53:39] <_methods> if you're flooded you quote it like you don't want it
[13:53:43] <zeeshan> and then @ school you have to follow their protocols
[13:53:52] <_methods> hence your $800 quote
[13:53:54] <_methods> or they don't like you
[13:54:02] <_methods> and see a pain in the ass
[13:54:02] <archivist> remember they have to pay the wages while they wait for the next job
[13:54:10] <zeeshan> and wait to book it out
[13:54:36] <_methods> we quote super high all the time instead of telling someone to fuck off
[13:54:44] <_methods> better than being a dick
[13:54:46] * archivist has been waiting for over a week
[13:54:46] <zeeshan> methods you assume too much
[13:54:54] <_methods> no it's what i do
[13:54:57] <_methods> i assume nothing
[13:55:04] <zeeshan> you assume to omuch about the task at hand
[13:55:18] <zeeshan> didn't say its not what you do
[13:55:56] <zeeshan> i have to dig through the pics
[13:55:59] <zeeshan> to find the flanges im talking about
[13:56:47] <_methods> you can take the same part to 20 diff shops and get 20 diff prices
[13:57:12] <zeeshan> http://i.imgur.com/e7KvSkQ.jpg
[13:57:17] <zeeshan> i can only find this pic
[13:57:17] <_methods> there are so many variables that go into a quote you'll never get the same price except through chance
[13:57:21] <zeeshan> remember this is back in 2003
[13:57:38] <zeeshan> the flanges were laser cut
[13:57:45] <zeeshan> i needed that o-ring groove in them
[13:58:39] <zeeshan> i ended up buying a lathe
[13:58:48] <zeeshan> holding them in a 4 jaw and plunging in
[13:59:14] <zeeshan> took 2 hours to do em (had 0 lathe experience at the time)
[13:59:45] <CaptHindsight> zeeshan: but you weren't certified!
[13:59:47] <zeeshan> do you think the job was unreasonable?
[13:59:55] <zeeshan> and do you think i was overquoted?
[14:00:09] <zeeshan> because i know i was now that i am more connected with machinists in the industry
[14:00:39] <_methods> walk ins get fucked
[14:00:42] <_methods> that's how it is
[14:01:07] <_methods> you know how many times a day i hear ohhh i have way more work after this
[14:01:10] <_methods> and you never see them again
[14:02:32] <zeeshan> yea i guess that is a problem
[14:02:46] <CaptHindsight> _methods: do they ever ask to borrow your shop?
[14:02:50] <_methods> yeah
[14:02:51] <zeeshan> and then there is people that want too much
[14:02:53] <zeeshan> for too little
[14:02:56] <_methods> and we tell them they can't insurance
[14:02:58] <zeeshan> i see it myself now
[14:03:05] <zeeshan> i can't imagine having to deal with people like that all the time
[14:03:10] <_methods> it sux
[14:03:17] <zeeshan> i ended up making 250 of these parts!@
[14:03:18] <_methods> and people that "know" what they are doing are the worst
[14:03:39] <zeeshan> _methods i call BS!!
[14:03:44] <zeeshan> theres 230981230923180930289 ways of doing something :)
[14:04:12] <zeeshan> this one guy i was doing the dies for a little while ago
[14:04:13] <zeeshan> for bending
[14:04:15] <_methods> honestly the ones i hate the most are the fuckin "artists"
[14:04:17] <zeeshan> he wanted everything specifically his way
[14:04:29] <_methods> artists/invenotrs
[14:04:50] <_methods> i just tell them we don't have the machines they need when the come in now
[14:05:16] <_methods> oh you need a 5 axis cat50 for that and we don't have one of those
[14:05:18] <_methods> good luck
[14:05:44] <zeeshan> haha
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[14:06:03] <_methods> my favorite poeple to work for are old school maintenance guys
[14:06:10] <zeeshan> how much would you have quoted me for that job
[14:06:11] <zeeshan> 4 flanges
[14:06:14] <CaptHindsight> _methods: where is the shop? +/- 300 miles
[14:06:14] <zeeshan> o-ring grooves
[14:06:22] <_methods> charleston sc
[14:06:23] <zeeshan> btw material is 304 stainless
[14:06:33] <_methods> i dind't even look at them
[14:06:36] <zeeshan> :(
[14:06:41] <_methods> like i said it depends on the shop
[14:06:44] <_methods> and what's goin on
[14:06:52] <_methods> if we're dead we'll do anything
[14:07:01] <_methods> if we're busy we'll quote it sky high
[14:07:19] <_methods> it's very situationally dependent
[14:07:25] <_methods> how fast do you want it
[14:07:25] <zeeshan> theres one local place that does all my waterjet/laser/plasma cutting
[14:07:31] <zeeshan> it took me a year to find these guys
[14:07:35] <_methods> did you put silly tolerances on it
[14:07:39] <zeeshan> they're so cheap, i dont even know how they do it
[14:07:58] <_methods> well your jobs are probably fairly small so they can use drops and stuff
[14:08:09] <zeeshan> http://i.imgur.com/hRaDOeZ.jpg
[14:08:11] <_methods> i don't know what qty runs you're foing though
[14:08:13] <archivist> just mention some cash, that usually helps
[14:08:17] <zeeshan> thsoe 3 babies .125
[14:08:21] <zeeshan> 6061, $38
[14:08:22] <zeeshan> lol
[14:08:31] <_methods> water jet
[14:08:33] <zeeshan> yea
[14:08:40] <zeeshan> od of that is 3"
[14:08:43] <zeeshan> (to give size perspective)
[14:08:50] <_methods> yeah our shop min is $75
[14:09:11] <_methods> which is low
[14:09:12] <zeeshan> this place is $60
[14:09:18] <_methods> others in the area are $250 min
[14:09:21] <zeeshan> but they'll do it for established customers
[14:09:42] <zeeshan> for a long time i was thinking ill make a plasma cutter
[14:09:44] <zeeshan> but when its this cheap
[14:09:46] <zeeshan> there is no point
[14:09:55] <zeeshan> they deal with the material ordering, loading, cutting
[14:09:58] <zeeshan> i just pick it up
[14:10:00] <_methods> yep
[14:10:12] <zeeshan> and they get their material wholesale
[14:10:18] <_methods> like i said you're not a walk in to them anymmore
[14:10:23] <_methods> so you'll get fair prices
[14:10:29] <_methods> but some random dude comes in the door
[14:10:35] <_methods> i'm not gonna do that for them for $38
[14:10:40] <_methods> $75 min
[14:10:42] <zeeshan> id charge $100
[14:10:43] <zeeshan> for that
[14:10:43] <zeeshan> lol
[14:10:48] <_methods> and i'm assuming you give them the dxf
[14:10:51] <zeeshan> yea
[14:10:54] <_methods> so that's even better
[14:10:57] <_methods> now i don't have to draw it
[14:11:04] <_methods> we just give it to the jet and burn it out
[14:11:06] <zeeshan> their drawing charges are 100/hr
[14:11:12] <_methods> yeah
[14:11:24] <_methods> i love people that come in with good drawings
[14:11:30] <_methods> if it's wrong its all on you lol
[14:11:33] <zeeshan> haha
[14:12:15] <zeeshan> part of the reason i got in the hobby is cause i love it
[14:12:23] <zeeshan> theres something about welding and making chips
[14:12:26] <zeeshan> that makes it worthwile..
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[14:12:35] <zeeshan> seeing a drawing go from paper to product
[14:12:42] <_methods> that's what it's all about
[14:12:51] <_methods> you think it and it becomes
[14:13:00] <zeeshan> and it's also made me appreciate when i work at day job designing stuff
[14:13:04] <zeeshan> how much effort goes into making something
[14:13:05] <zeeshan> and skill
[14:13:21] <zeeshan> and i am 100% friendly with all the floor workers and respect them
[14:13:35] <_methods> well they can make your life easy or they can make it miserable
[14:13:41] <zeeshan> and it makes me cringe when other engineers treat them like shit
[14:13:43] <_methods> they'll let you burn
[14:13:57] <zeeshan> yep
[14:14:03] <zeeshan> all it takes is one smart ass putting one person down
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[14:14:07] <zeeshan> and that person won't be productive anymore
[14:14:07] <_methods> if they like you they'll help you fix shit before it turns into an "event"
[14:14:14] <zeeshan> will never got out of his/her way to fix something
[14:14:30] <_methods> otherwise they'll just toss your ass under the bus
[14:14:34] <zeeshan> yea
[14:14:52] <zeeshan> at the end of the day people need to remember they're human beings
[14:14:54] <zeeshan> with kids and a family
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[14:15:07] <zeeshan> have decency
[14:15:20] <zeeshan> you know what one of the engineers ended up saying in a meeting?
[14:15:26] <zeeshan> right in front of the production crew?
[14:15:28] <_methods> well it's a 2 sided story
[14:15:36] <zeeshan> "we all know those other guys don't know what they're doing"
[14:15:37] <zeeshan> ..
[14:15:39] <_methods> they do the same shit
[14:16:03] <zeeshan> youre right, sometimes production people will complain
[14:16:06] <zeeshan> about really silly things
[14:16:23] <zeeshan> you're not going to redesign something because for a one off job he has to spend 15 more minutes tightening a bolt
[14:16:34] <_methods> exactly
[14:16:34] <zeeshan> mistake is made, get er done, we'll fix it on the next job
[14:16:50] <_methods> like i said it's a story with 2 sides
[14:16:54] <_methods> i'm usually stuck in the middle
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[14:16:59] <zeeshan> haha
[14:17:05] <zeeshan> moderator
[14:17:12] <_methods> yeah it sux
[14:17:19] <_methods> i got the floor people yelling at me
[14:17:23] <_methods> i got customers yellin at me
[14:17:30] <_methods> i got the owner yelling at me
[14:17:32] <_methods> it's lovely
[14:17:43] <zeeshan> wish there was a kick ban option in real life
[14:18:00] <_methods> haha you get used to it
[14:18:20] <_methods> you just learn to pick your fights more gently
[14:18:46] <_methods> or carefully lol
[14:19:36] <zeeshan> i miss working in industry
[14:19:50] <zeeshan> i can't wait to get out of the research world
[14:19:59] <zeeshan> everything is so slacked off here
[14:20:10] <zeeshan> industry, everyday is a new challenge
[14:20:27] <_methods> well that's one way to put it
[14:20:44] <CaptHindsight> _methods: so it sounds like what you are saying is that people should be civil and treat others with respect :)
[14:20:44] <zeeshan> at eaton i come in the morning
[14:20:52] <zeeshan> "why did you not release the drawings last night?!?!"
[14:21:03] <_methods> CaptHindsight: yeah that would be nice
[14:21:06] <zeeshan> so 7:30am you get your first adrenalin rush
[14:21:08] <zeeshan> haha
[14:21:08] <_methods> but i've not seen it happen yet
[14:22:56] <CaptHindsight> _methods: have you seen the behavior (socialization) that's encouraged by school and corporate agendas?
[14:23:10] <_methods> yeah not really in job shops
[14:23:17] <_methods> but i've seen it in corporations
[14:23:38] <CaptHindsight> it's no accident that people behave this way
[14:23:50] <_methods> you will get drug out back in my shop for that shit
[14:24:15] <zeeshan> CaptHindsight: we've been told numeruous times throughout undergrad
[14:24:21] <_methods> we still grind and weld and cut steel and act like people that conduct those activities
[14:24:25] <zeeshan> to talk to ALL "stakeholders"
[14:24:31] <zeeshan> stakeholders can be machinists, customer, city
[14:24:31] <zeeshan> etc
[14:24:39] <zeeshan> communication is #1 key
[14:24:55] <zeeshan> we were given the example of the GM engineers being told that their transmission didn't shift right
[14:25:01] <zeeshan> so they started redesigning the shifter mechanism
[14:25:06] <zeeshan> and the new trans had the same problem
[14:25:16] <zeeshan> eventually they started talking to the customers
[14:25:21] <zeeshan> and found out the problem was the shifter knob....
[14:26:07] <zeeshan> and we took some courses which put us kind of in the same position as methods
[14:26:17] <zeeshan> where you're a link betwen management and production
[14:26:21] <zeeshan> and also the customer
[14:26:49] <_methods> yeah since i do all the drawing and programming i get stuck in the middle
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[14:28:00] <zeeshan> now i have no clue what the business undergrads get taught
[14:28:00] <zeeshan> haha
[14:28:15] <zeeshan> "engineers and production workers are your servants"
[14:28:21] <zeeshan> "command and you shall recieve"
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[14:29:23] <_methods> well the way i see it is this
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[14:29:41] <_methods> on wall street they wouldn't hire a mech engineer to run barclays
[14:29:50] <_methods> why would a company hire an mba to run them
[14:29:58] <_methods> a manufacturing company
[14:30:25] <_methods> engineers should run manufacturing companies
[14:30:35] <archivist> far too man MBAs ruining companies
[14:30:49] <archivist> and accountants
[14:30:58] <zeeshan> i mean do you really think a mba can identify
[14:31:00] <zeeshan> "waste" in a company
[14:31:14] <zeeshan> they're just relying on their intel
[14:31:30] <zeeshan> and making decisions on things they have no clue about
[14:31:49] <zeeshan> archivist: my gf is an accountant :-(
[14:32:56] <archivist> zeeshan, they start removing the less profitable lines, suddenly the company has no product range, goes out of business
[14:33:20] <zeeshan> lol
[14:33:45] <zeeshan> you never eliminate the bread and butter lines!
[14:33:55] <zeeshan> even they don't make you as much money =/
[14:34:01] <archivist> or reducing stock, so the local branch ALWAYS has to order in
[14:34:52] <archivist> I went to my local, no centre drills, we can get them next day,.....I walked out
[14:34:54] <gonzo_> when they ask managers to cut back waste, it's like asking turkeys to vote for xmas
[14:35:24] <zeeshan> lol
[14:35:57] <zeeshan> i need to run a power wire
[14:36:01] <zeeshan> to the other side of the garage
[14:36:04] <zeeshan> 2/4
[14:36:16] <zeeshan> i cant make a decision
[14:36:28] <zeeshan> conduit + romex
[14:36:32] <zeeshan> or armor cable
[14:36:41] <_methods> conduit
[14:37:02] <_methods> that way you can add to the run if you need to later
[14:37:03] <zeeshan> with conduit i might have to run a larger wire
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[14:37:11] <zeeshan> cause ots enclosed
[14:37:13] <zeeshan> *its
[14:37:41] <zeeshan> ive never run a metal or plastic conduit before :/
[14:38:02] <gonzo_> isn't armored enclosed by definition?
[14:38:31] <_methods> it's hardly rocket science
[14:38:41] <_methods> get some conduit and pullwire through lol
[14:39:19] <gonzo_> and double the gauge and number oif wires you think you need. Future proof
[14:39:38] <_methods> ^^
[14:40:58] <Connor> zeeshan: Just do AC.. allot easier and faster.
[14:41:35] <Connor> conduit is more $$$, takes longer.. and is a b!tch to get the wires through..
[14:42:00] <Connor> unless, you get into much larger sizes..
[14:42:14] <archivist> trunking
[14:43:03] <Connor> Some of the larger stuff comes in that plastic looking water tight conduit stuff..
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[15:13:20] <zeeshan> im running 2/3
[15:13:22] <zeeshan> i think AC it is
[15:13:28] <zeeshan> er 2/4
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[15:15:05] <zeeshan> http://www.homedepot.com/p/Siemens-200-Amp-40-Space-40-Circuit-Indoor-Main-Breaker-Load-Center-P4040B1200CU/203027309
[15:15:08] <zeeshan> my main panel is that thing
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[15:15:38] <zeeshan> i dont see whjat the MAX breaker capacity is
[15:15:41] <zeeshan> per space
[15:16:09] <zeeshan> and when they say use copper 60/75C wire
[15:16:16] <zeeshan> use that as a minimum right? :
[15:16:24] <zeeshan> you can use 90C wire which is better? :P
[15:16:39] * zeeshan has been running 90 c all this time with no ill effects
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[15:21:23] <Connor> zeeshan: With that size of wire, you might want to use Flexible Non-Metallic Conduit, or wire that already comes as NMC
[15:21:54] <zeeshan> flexible metal conduit
[15:21:57] <zeeshan> l;ooks like armor :P
[15:22:09] <Connor> It is. But I'm not suer it comes that large.
[15:22:18] <zeeshan> 2 awg is the largest
[15:22:23] <zeeshan> that ive found in catalogs
[15:22:50] <zeeshan> man
[15:22:52] <zeeshan> i must be blind
[15:22:58] <zeeshan> i cant find the maxium branch breaker size
[15:23:00] <zeeshan> anywhere in this pdf
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[15:32:52] <zeeshan> 125A
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[15:40:37] <zeeshan> holy cow
[15:40:42] <zeeshan> 3/4 BX cable
[15:40:46] <zeeshan> $363.46
[15:40:50] <zeeshan> for 50 feet
[15:42:57] <CaptHindsight> service entrance armored cable, yeah pricey and rarely used anymore
[15:43:07] <zeeshan> got any other suggfestions?
[15:43:33] <_methods> that's why i like emt and pull my own
[15:43:41] <CaptHindsight> conduit
[15:43:47] <zeeshan> methods i was looking at my garage
[15:43:54] <zeeshan> and some of the bends are going to be really annoying w/ conduit
[15:44:11] <_methods> use junctio boxes
[15:44:14] <Tom_itx> yeah
[15:44:17] <Tom_itx> beat me to it
[15:44:21] <zeeshan> rpolly will end up costing the same :P
[15:44:34] <CaptHindsight> I'll loan you my bender :)
[15:44:38] <zeeshan> haha
[15:46:04] <CaptHindsight> 1 1/4 is easy to work with
[15:48:17] <dirty_d> is there a generic userspace hal driver?
[15:48:26] <CaptHindsight> Home Depot even sells cheater 90's
[15:48:39] <dirty_d> if say i hook up another microcontroller to a raspberry pi
[15:49:19] <CaptHindsight> dirty_d: are you sure you're asking in the right channel?
[15:49:55] <dirty_d> no
[15:50:05] <jdh> heh
[15:50:23] <jdh> where is HAL running in this context? on the rpi?
[15:50:24] <dirty_d> but there is no #linuxcnc-dev
[15:50:33] <dirty_d> jdh, its part of linuxcnc
[15:50:37] <CaptHindsight> linuxcnc-devel
[15:50:41] <archivist> dirty_d, are you trying to cut up an elephant to fit in a few minis
[15:50:45] <CaptHindsight> but what are you trying to do?
[15:51:11] <zeeshan> do you guys pass
[15:51:15] <zeeshan> single wires through the conduit?
[15:51:16] <dirty_d> use a raspberry pi as a machine controller
[15:51:22] <_methods> pull the bundle
[15:51:26] <ssi> zeeshan: I can't believe you still are trying to pull 2
[15:51:27] <_methods> not single wires
[15:51:30] <CaptHindsight> zeeshan: no, inductive heating
[15:51:31] <dirty_d> i have a rpi, and a bunch of microcontrollers I could hook up
[15:51:33] <zeeshan> ssi wut
[15:51:40] <zeeshan> pull 2!?!
[15:51:43] <ssi> 2awg
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[15:51:48] <zeeshan> 3 awg
[15:51:52] <zeeshan> 100A
[15:51:53] <archivist> dirty_d, just use a PC and forget the pain
[15:52:03] <dirty_d> I dont have an extra
[15:52:07] <ssi> I just can't imagine in what universe you think your machine needs 24KVA
[15:52:08] <CaptHindsight> zeeshan: you pull them all at the same time
[15:52:15] <ssi> but never mind
[15:52:16] <zeeshan> ssi look at the charts
[15:52:17] <zeeshan> again
[15:52:30] <zeeshan> http://i.imgur.com/AtibDlQ.png
[15:52:37] <zeeshan> it works out to 3 awg
[15:52:38] <zeeshan> ..
[15:52:39] <archivist> a second hand PC v months of pain tring to get it running on a pi
[15:53:09] <CaptHindsight> zeeshan: I've have run that matsuura on a 30A 208VAC circuit
[15:53:10] <zeeshan> i think im just going to move the mill
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[15:53:15] <zeeshan> closer to the main panel
[15:53:25] <zeeshan> so its a 6 foot run
[15:53:31] <zeeshan> vs the 50 foot run
[15:53:44] <ssi> sounds like a great idea
[15:53:57] <CaptHindsight> zeeshan: I only tripped the breaker once by bogging down the spindle with a large face mill with the depth set too deep
[15:54:00] <zeeshan> the lathe runs off 30A breaker
[15:54:07] <zeeshan> CaptHindsight: haha nice
[15:54:21] <ssi> CaptHindsight: I'm planning on running the sabre on a 60A breaker until it nuisance trips, then I'll reevaluate
[15:54:49] <ssi> it probably could use a 100A service, but I don't expect to need anything close to the max spindle power
[15:54:52] <zeeshan> i mean seriously if u look at my poder dist
[15:54:58] <zeeshan> power dist
[15:55:00] <zeeshan> the numbers tell me 100A
[15:55:06] <zeeshan> worst case scenario
[15:55:16] <zeeshan> unless ive really over looked something
[15:55:16] <CaptHindsight> zeeshan: just run #6 thhn
[15:55:29] <zeeshan> CaptHindsight: i have tons of 6 thhn
[15:55:37] <zeeshan> cause at my old house
[15:55:43] <ssi> 6 thhn and a 60A breaker will work just fine
[15:55:44] <zeeshan> i had to run 100 feet of it
[15:55:48] <zeeshan> to get from main panel to my garage
[15:55:49] <zeeshan> and welder
[15:55:55] <zeeshan> ssi how are you calculating that
[15:56:14] <ssi> your original machine wanted 40A service, right?
[15:56:17] <zeeshan> no
[15:56:18] <zeeshan> 60A
[15:56:22] <ssi> ok 60A then
[15:56:30] <zeeshan> that servo drive was only 15A
[15:56:31] <ssi> so it was designed to run everything full load on 60A
[15:56:32] <zeeshan> on the old machine
[15:56:38] <zeeshan> now its 3 times that
[15:56:46] <zeeshan> plus 2 more axis
[15:56:49] <ssi> your servos haven't gotten bigger
[15:56:53] <zeeshan> and ive added a computer
[15:56:57] <ssi> just because the drives can supply 25A doesn't mean they will
[15:57:06] <zeeshan> well im going by the rating of the servos themself
[15:57:11] <zeeshan> for those numbers that you see in the distrubiton
[15:57:20] <ssi> ok like I said, never mind
[15:57:27] <ssi> i know better than to argue with you about something when NUMBERS are involved
[15:57:36] <zeeshan> like i said
[15:57:40] <zeeshan> theyre all based on worse case scenario
[15:57:43] <ssi> I really don't care what you do
[15:57:45] <zeeshan> will it ever happen, prolly never
[15:57:49] <ssi> but 2awg is expensive as balls and hard to pull
[15:58:00] <archivist> diversity, you never need to add all the maximums
[15:58:01] <ssi> and putting a 100A breaker on a machine that needs 60A is just asking for trouble
[15:58:11] <zeeshan> its not 60A anymore
[15:58:15] <zeeshan> theres 2 more additional servos
[15:58:18] <zeeshan> and a PC
[15:58:27] <zeeshan> and 2 additional power supplies
[15:59:02] <archivist> just think how many will take full power at one point in time....none
[15:59:06] <ssi> what size servos
[15:59:18] <ssi> 500w or so?
[15:59:21] <ssi> like your other axes?
[15:59:27] <zeeshan> 1000W
[15:59:57] <archivist> but they are not all taking full power at the same time
[16:00:06] <ssi> ok even assuming you're going to use 50lb servos for your mythical A and B axes
[16:00:07] <zeeshan> archivist: youre right
[16:00:11] <ssi> that's still only an extra 2500W
[16:00:16] <ssi> which is 10A
[16:00:56] <ssi> https://scontent-b-iad.xx.fbcdn.net/hphotos-xpf1/v/t1.0-9/10471511_876280445442_901235789185799916_n.jpg?oh=d418e4256051e628fc58e1cd2fa08288&oe=54F3AFCF
[16:01:05] <zeeshan> im thinking
[16:01:05] <CaptHindsight> he might see some peaks but not often enough to trip a 60A breaker
[16:01:16] <zeeshan> maybe just run computer off the wall outlet
[16:01:29] <ssi> in the grand scheme of things the computer means NOTHING in this scenario
[16:01:41] <ssi> I'd be shocked if a computer running linuxcnc is drawing 200W
[16:01:43] <CaptHindsight> <-- will only speak about zeeshan as though he's not in the channel :)
[16:01:47] <ssi> CaptHindsight: probably wise
[16:01:50] <zeeshan> CaptHindsight: haha :D
[16:01:58] <zeeshan> okay ssi so check this out
[16:02:04] <zeeshan> the manufactuer for this sumitomo drive says 60A
[16:02:08] <zeeshan> for ihe input side
[16:02:27] <zeeshan> when i calculate the numbers i get 35A
[16:02:35] <zeeshan> so i dunno whats going on there
[16:02:36] <ssi> you have a 5hp motor
[16:02:39] <zeeshan> yes
[16:02:47] <zeeshan> which should draw 28A
[16:02:48] <zeeshan> FLA
[16:02:53] <zeeshan> * 1.25 safety factor
[16:03:04] <zeeshan> thats at peak hp.....
[16:03:07] <ssi> right
[16:03:12] <zeeshan> so i dont know why they say 60A
[16:03:14] <zeeshan> makes no sense to me
[16:03:17] <archivist> starting current is much higher
[16:03:19] <ssi> because it's a 10hp vfd!
[16:03:45] <zeeshan> sorry for a 10hp motor is 28A
[16:03:47] <zeeshan> not for 5hp
[16:04:01] <ssi> yeah that sounds more correct
[16:04:05] <ssi> 5hp should be like 16 FLA
[16:04:10] <zeeshan> yes
[16:04:16] <ssi> put it this way
[16:04:22] <ssi> my 15hp motor wants 40 FLA
[16:04:29] <zeeshan> okay fuck it
[16:04:31] <ssi> my 25hp vfd can supply 60A
[16:04:33] <zeeshan> im gonna run the 6/3 wire i have
[16:04:37] <zeeshan> and just protect it with a 60A breaker
[16:04:40] <ssi> there you go
[16:04:45] <zeeshan> if it trips
[16:04:49] <zeeshan> ill change the wire in the future
[16:04:51] <archivist> that is RMS current not peak
[16:04:53] <zeeshan> at least its costing me nothing
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[16:05:04] <zeeshan> ill need to put it in conduit
[16:05:08] <zeeshan> since its thhn
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[16:05:23] <Tom_itx> then you can blame ssi for making you do it
[16:05:23] <zeeshan> ill size the conduit for 100A wire
[16:05:35] <zeeshan> i know ssi is right
[16:05:39] <zeeshan> because my lathe is 3hp
[16:05:46] <ssi> man can I frame that and put it on the wall?
[16:05:47] <zeeshan> has 2 drives similar supplies and computer running off 30A breaker
[16:05:50] <ssi> can I set it as the channel topic?!
[16:05:59] <zeeshan> and it hasn't tripped yet
[16:06:01] <Tom_itx> TM*
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[16:06:16] <zeeshan> so i can't see how this thing will draw more than 60A
[16:06:23] <zeeshan> in a typical application
[16:06:36] <ssi> it won't
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[16:06:47] <ssi> I'll be surprised if I ever trip my 60A breaker
[16:06:51] <ssi> and it's actually undersized for my machine
[16:06:54] <zeeshan> im still going to size the wires the same from each breaker
[16:06:57] <zeeshan> okay fak im late for this lab
[16:06:57] <zeeshan> brb
[16:07:17] <ssi> I figure if I try to plow through a massive cut in inconel or something
[16:07:19] <archivist> think sine wave part of the time it is 0 current part well over the RMS current
[16:07:27] <ssi> and achtually load that 15hp spindle up and two servos trying to drag through it
[16:07:31] <ssi> I might be able to trip it
[16:07:49] <ssi> archivist: peak current is sqrt(2) * rms current
[16:08:04] <archivist> sime like to spec for the temperature rise rather than the current
[16:08:09] <archivist> some
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[17:07:30] <_methods> http://www.aliexpress.com/item/Sell-Mini-PC-with-both-Android-Windows-8-system/2044898752.html
[17:07:45] <_methods> crazee
[17:07:55] <_methods> $110 quad core stick pc
[17:08:05] <ssi> neat
[17:08:17] <_methods> android windows or linux
[17:08:26] <_methods> poor osx gets no love
[17:08:30] <ssi> too bad it's short on IO
[17:09:26] <_methods> i'm sure you could hook whatever up to it
[17:09:31] <_methods> 2x usb
[17:09:42] <ssi> usb doesn't count :)
[17:09:48] <_methods> in our game
[17:10:02] <_methods> great little pen testing stick
[17:11:33] <ssi> pen testing?
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[17:14:34] <_methods> penetration testing
[17:14:40] <_methods> hacking stuff
[17:14:44] <ssi> orite
[17:14:55] <_methods> plug that in on a network somewhere
[17:15:21] <_methods> there are plenty with arm processors
[17:15:34] <_methods> but i think thats the only one i've seen with an atom processor in that format
[17:17:18] <pcw_home> The Baytrail Atoms are the first that can really compete in the same Horsepower/Watt space as the ARMs
[17:18:07] <_methods> yeah i can't wait to take that thing for a spin
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[17:41:35] <CaptHindsight> I really wish there was another vendor of x86 besides Intel
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[17:45:33] <SpeedEvil> There is.
[17:45:44] <SpeedEvil> Not, however, for modern stuff
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[17:58:11] <ssi> I just bought three more of those BE drives :P
[17:58:29] <jdh> with velocity mode?
[17:58:36] <ssi> yes?
[17:58:50] <Connor> BE drives ?
[17:58:57] <jdh> he's a drive whore
[17:58:59] <ssi> amc trapezoidal drives
[17:59:04] <ssi> jdh: I set one on fire last night!
[17:59:07] <archivist> bloody expensive?
[17:59:09] <_methods> hehe drive whore
[17:59:17] <Connor> ssi How the heck did you do that ?
[17:59:19] <ssi> archivist: $60 apiece :P
[17:59:38] <ssi> Connor: one thing I don't like about the amc drives is the dip switches for setting modes are hard to access
[17:59:49] <ssi> you need a tiny flathead or pair of smd tweezers or something to flip them
[18:00:00] <jdh> we have a bunch of AMC drives with different company names on them.
[18:00:10] <ssi> and I've never had a problem before, but this time I guess I didn't let the DC bus bleed after disabling the drive
[18:00:18] <ssi> was trying to get the velocity feedback correct to get the drive to quit running away
[18:00:28] <ssi> and I stuck my tweezers in there to try to flip that switch and something shorted
[18:00:31] <ssi> and it went up like a torch
[18:00:33] <ssi> pretty impressive actually
[18:00:41] <ssi> foot-tall flames :D
[18:00:50] <jdh> nice!
[18:00:53] <jdh> just one drive?
[18:00:56] <ssi> yeha
[18:00:58] <ssi> I had it on the bench
[18:01:05] <jdh> what flamed?
[18:01:09] <ssi> trying to get preliminary setup done on the bench before I install in the machine
[18:01:23] <ssi> a big SMD diode down at the DC input
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[18:05:15] <Connor> ssi: Nice!
[18:06:15] <ssi> yeah super fun
[18:07:07] <ssi> I got my cat40 tooling in the mail yesterday
[18:07:12] <ssi> and ordered pull studs from shars
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[18:08:46] <Connor> I need to get my machine and this stock over to Pete so we can machine stuff.
[18:09:28] <Connor> Still trying to figure out what size connectors to use for the oil system.
[18:09:46] <Connor> Looks like finding anything in 1/8 NPT is hard..
[18:09:55] <jdh> you need to start working on your outbuilding so you have room for your VMC
[18:10:01] <Connor> most of those Push-To-Connect fittings are 1/4 NPT or metric
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[18:10:30] <Connor> jdh: Huh ? I don't have a VMC
[18:10:32] -!- tronwzrd [tronwzrd!tronwizard@] has joined #linuxcnc
[18:10:34] <jdh> yet.
[18:10:44] <jdh> because you don't have room for it.
[18:11:08] <Connor> Honestly.. with as little as I do.. It would be 100% waste of money.
[18:11:18] <ssi> Connor: http://www.poweraire.com/E14-10-32.html
[18:11:25] <ssi> 10-32 thread is even smaller than 1/8npt
[18:11:27] <Connor> I want to get the mill finished up, and switch back to working on my robots.
[18:11:50] <Connor> ssi: Oh Yea.. I did see some of those too on ebay.
[18:11:55] <ssi> they have them in 1/8npt also
[18:12:04] <ssi> I've bought lots of those fittings from poweraire, they're quality
[18:12:19] <Connor> Are they straight 10-32 ?
[18:12:23] <ssi> I think so
[18:12:28] <ssi> I don't have any of the little ones
[18:12:32] <ssi> just 1/4" and up
[18:13:31] <CaptHindsight> http://electronicdesign.com/embedded/misunderstanding-plagues-patent-system LOL
[18:13:45] <CaptHindsight> LOL "Without patents, inventors would keep their inventions secret to prevent competition. When the inventor died, the principles behind the invention would also die. Technology would stagnate. This is at least part of the reason that the principles behind many great ancient inventions have been lost even to this day."
[18:14:36] <ssi> seems legit :P
[18:14:41] <SpeedEvil> Most patentees and patent office examiners need set on fire.
[18:14:44] <jdh> they should have made up some anecdotals to support their assertion
[18:15:24] <SpeedEvil> You should never, ever be able to get a patent on a thing where it takes less time to invent it for someone skilled in the art than to do a full patent search to see if it's patented, and application.
[18:15:49] <ssi> SpeedEvil: agreed
[18:15:54] <archivist> most patents are as obtuse as they can get away with!
[18:16:06] <CaptHindsight> "Are Patents Destroying Innovation? No. This is a ridiculous assertion," Heh
[18:16:42] <CaptHindsight> who writes this crap and who approves it for publication?
[18:17:15] <SpeedEvil> And how many patents does it have
[18:17:23] <ssi> Can you understand an engineering paper by its title alone? Can you understand electronics by reading the title of an electronics text? In the same way, you cannot understand a patent by only reading the title. In fact, nothing in patent law requires the patent title to have anything to do with the invention. I personally have patents where the title is almost meaningless.
[18:18:23] <CaptHindsight> yeah, written by http://electronicdesign.com/author/bob-zeidman
[18:18:48] <CaptHindsight> provides engineering consulting to law firms regarding intellectual property disputes
[18:19:28] <ssi> the problem is that it's so overwhelmingly difficult and expensive to get a patent, than little guys who might actually have something that would be worth protecting by a patent often don't, but patent troll companies will litigate over nonsense
[18:19:43] <SpeedEvil> Quite.
[18:20:14] <CaptHindsight> we have the best patent system that money can buy
[18:20:19] <SpeedEvil> IMO you should never ever be able to get a patent for being the first to think of a problem - then coming up with a solution that someone would normally try
[18:20:42] <ssi> worse than that is that you don't even have to have a solution
[18:20:55] <ssi> you can just dream up something that you think may not exist and patent it
[18:20:56] <CaptHindsight> they redefined obvious
[18:21:15] <ssi> then when someone else comes along and has the same idea and actually implements it, some how you own what they built
[18:21:32] <CaptHindsight> pretty sneaky
[18:21:33] <SpeedEvil> CaptHindsight: indeed
[18:22:25] <CaptHindsight> if you're a small potatoes submitter your patent might be held up for years
[18:22:33] <CaptHindsight> for being to broad
[18:23:13] <_methods> meanwhile apple gets to patent the swipe
[18:23:35] <CaptHindsight> they patented something I was building for them
[18:24:13] <CaptHindsight> well applied for anyway
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[18:24:55] <CaptHindsight> been around for years but I'm waiting to see what they actually get it reworded into
[18:25:27] <_methods> i'm sure something appropriately vague and infuriating
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[18:26:59] <CaptHindsight> the examiners are instructed to find a way to award a patent if the original submission is already patented
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[18:33:51] <CaptHindsight> well if they only granted patents on the non-obvious and it has to work how many new patents would there be?
[18:34:25] <CaptHindsight> this would also not protect the buggy whip makers
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[19:00:22] <lair82> Hello Guys, I just got my stuff in to start building the control for my mill project, starting from scratch, what is the best recommendations for compiling using Debian. My plan is to use a Mesa 7I80HD for this one, and I have never used Debian.
[19:01:45] <lair82> I have the software installed off of the bootable usb I made, and started going thru the motions on getting the source from thru git, and the terminal window
[19:03:30] <CaptHindsight> lair82: why not install from the hybrid linuxcnc Wheezy ISO?
[19:04:01] <CaptHindsight> unless I a missing the question
[19:04:32] <CaptHindsight> bbl
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[19:05:59] <lair82> That's what I used, I made a usb, from the download page on linuxcnc,
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[19:09:23] <lair82_> i moved to the actual machine,
[19:10:35] <lair82_> I when i got to the point of "./configure -a" I got "your kernel '3.4-9-rtai-686-pae' is not known. There might be needed dependencies which won't get set automatically. successfully configured for 'Debian-7.7'-'3.4-9-rtai-686-pae'.."
[19:11:29] <_methods> what are you installing on?
[19:11:44] <lair82_> Then I tried "dpkg checkbuilddeps" and got "dpkg: error: need an action option". Not sure where to go from here,
[19:12:17] <lair82_> A brand new ASrockboard
[19:12:32] <_methods> what mobo what processor?
[19:12:35] <JT-Shop> I'd just use the LiveCD or whatever they call it now
[19:12:47] <JT-Shop> unless you need some feature of master
[19:13:39] <ssi> lair82_: I got the atom boards, and one's running now
[19:13:41] <ssi> thanks
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[19:18:20] <cpresser> lair82_: is there any good reason to compile the code yourself?
[19:18:25] <lair82_> Cool sounds good, glad we could be of help, ssi
[19:18:37] <cpresser> lair82_: there is a buildbot for linuxcnc with readymade debian packages :)
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[19:19:05] <ssi> I've built linuxcnc from source several times, but always on machines that started out as installs from the livecd
[19:19:09] <ssi> and it was fairly straightforward
[19:19:26] <ssi> but like these guys are saying, unless you need a specific feature of one of the branches or current master, probably should stick with the livecd
[19:19:33] <ssi> the wheezy 2.6.3 livecd is quite good
[19:19:41] <lair82_> I'm using a FM2A88X-ITX with a Kingston ssdnow 120gb Processor
[19:20:07] <cpresser> unless you have a newer board with some unsupported features. i had trouble with USB, so i needed a newer kernel
[19:20:16] <lair82_> As far as I know, i have to run master, to run the 7I80hD board over ethernet
[19:20:47] <cpresser> lair82_: okay, but even if you need master, you dont need to compile yourself: http://buildbot.linuxcnc.org/
[19:20:49] <ssi> ohh fancy
[19:21:45] <_methods> yeah that's one fancy mobo
[19:21:50] <lair82_> I was wondering about that, I have never used the build bot, looks like I know where to head now
[19:22:00] <_methods> i got a pc i pulled out of a trashcan running my linuxcnc
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[19:22:49] * JT-Shop wonders why people just don't go to the "downloads" page
[19:23:03] <JT-Shop> http://linuxcnc.org/index.php/english/download
[19:24:05] <lair82_> Long story, but the smaller MB's and processors have killed us, we would daily freeze up our machines when using the d525 style boards, so we went to these, and havent seen any issues since
[19:24:36] <ssi> oh NOW you tell me that ;)
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[19:27:43] <cpresser> JT-Shop: the hybrid image doesnt work with newer intel boards (J1900 CPU)
[19:29:30] <lair82_> ssi I have over a hundred rungs in my classicladder alone
[19:29:37] <lair82_> Thats the reason
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[19:29:54] <ssi> ah
[19:31:05] <lair82_> Gotta go, return tomorrow
[19:31:21] <JT-Shop> cpresser, thanks
[19:31:43] <_methods> well buildbot looks like the easiest route
[19:32:40] <JT-Shop> cpresser, so can you use the buildbot with the J1900 CPU's?
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[19:33:04] <Tom_itx> JT-Shop what series timing belt / gears are you using on your plasma?
[19:33:08] <cpresser> JT-Shop: yes. i installed debian wheezy + buildbot packages
[19:33:21] <cpresser> however, my Mesa-Hardware didnt arrive so far. i could not test it
[19:34:38] <JT-Shop> Tom_itx, one size too small LOL
[19:34:42] <Tom_itx> hah
[19:35:00] <Tom_itx> i'm looking to replace the V belt on my little mill with a GT2 series 9mm wide
[19:35:05] <Tom_itx> hope that's big enough
[19:35:17] <Tom_itx> i think it will be
[19:35:41] <Tom_itx> right now it uses a sewing machine belt
[19:36:55] <JT-Shop> the Y axis belts are about 5/16" wide and the X axis belt is 1/2"
[19:37:15] <JT-Shop> for the spindle drive?
[19:37:27] <Tom_itx> yeah
[19:38:56] <Tom_itx> that's about 8mm and 13mm
[19:39:12] <Tom_itx> these come in 9 and 15mm wide
[19:39:19] <Tom_itx> sounds about right i think
[19:39:27] <Tom_itx> 6 9 & 15mm
[19:39:41] <Tom_itx> 6 is probably too narrow
[19:39:48] <PCW> lair82: freeby.mesanet.com/wheezy-uspace-eth
[19:39:50] <PCW> is a script to build uspace master on the wheezy iso
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[19:42:54] <PCW> and the J1900 works fine with the wheezy hybrid ISO _except_ USB doesn't work with the RTAI kernel
[19:43:17] <PCW> (it works with the Preemt-rt kernel though)
[19:44:53] <ssi> I can't get these drives to behave in velocity mode
[19:45:11] <ssi> the SE drives I was able to get to lock up in velocity mode
[19:45:21] <ssi> these want to run away no matter which direction I set the velocity feedback
[19:45:47] <ssi> adjusting the offset pot, they go from full speed one way to full speed the other way in a fraction of a degree of turn
[19:45:54] <ssi> and not at the same place if you go back and forth
[19:46:02] <ssi> I feel like my encoder feedback isn't right or somethign
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[19:47:12] <Tom_itx> JT-Shop, i'll have to bore them out since i can't get the right hole sizes i need
[19:48:05] <Tom_itx> JT-Shop, do you get a lot of stretch on the X axis since it's probably fairly long?
[19:48:06] <PCW> do the encoders read correctly from the linuxcnc side?
[19:48:12] <ssi> yes
[19:48:49] <PCW> are the drives encoder inputs isolated?
[19:49:01] <ssi> I have no idea
[19:49:06] <ssi> and I don't think this is going to work
[19:49:10] <ssi> because they're single ended
[19:49:19] <ssi> I think that's the issue, is I was trying to just give it half the differential encoder signal
[19:49:25] <ssi> but clearly it's not high enough to trigger the drive
[19:49:33] <ssi> I'm seeing around 3v as a high on them
[19:49:49] <Tom_itx> run them thru a buffer
[19:49:52] <PCW> that may be a problem since the 7I77 terminates them whan in differntial mode
[19:50:02] <PCW> use a ENCY
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[19:50:30] <ssi> well rev2 of my hall board needs to use the encoder signals to fine-correct the hall outputs
[19:50:35] <ssi> I can just repeat it on there
[19:50:44] <ssi> in the short term I guess I'll try to set these up torque mode
[19:51:22] <PCW> you could probably test by setting the 7I77 encoder inputs to single ended mode
[19:51:32] <ssi> hm
[19:51:36] <ssi> can I leave it wired as is?
[19:52:34] <PCW> no, the + and - inputs always have a termination resistor across them
[19:52:41] <ssi> gotcha
[19:52:53] <ssi> so if I disconnect the - inputs at the 7i77 and switch to SE mode
[19:52:54] <ssi> that might work
[19:53:32] <ssi> should I ground the - lines?
[19:54:17] <PCW> yep, at least it wont load down the outputs
[19:54:18] <PCW> and no if you want your encoders to live, dont short their outputs to ground
[19:55:54] <ssi> yep, that works
[19:55:59] <PCW> most differential outputs are like 2 TTL outputs so dont short or tie high
[19:57:09] <PCW> we have a splitter for that purpose but you might as well include it on your adapter
[19:57:24] <ssi> yeah
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[19:57:41] <ssi> the first rev of the adapter was designed for the parker drives, and it's incovenient to wire for the new drives
[19:57:51] <ssi> next rev will include encoder handling and be more convenient for wiring
[19:58:44] <ssi> if I was feeling really fancy I could give it modbus and ADs to read the current and velocity values off the drive :P
[19:59:38] <PCW> modbus is a bit too slow to be of much use for current monitoring (well probably ok for a spindle)
[19:59:54] <ssi> could be done via smartserial though, yeah?
[20:00:13] <ssi> it's sort of a silly extra feature
[20:00:23] <ssi> and it'd probably mean moving up to an fpga to do that correctly
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[20:14:23] <ssi> PCW: these drives definitely sound different than the sinusoidal drives
[20:14:30] <ssi> especially with me still having that 7.5 degree error
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[20:30:36] <ssi> I'm tuning it again with no load, like I did last week on the SE drives, and interestingly it tuned much closer, much more easily
[20:30:39] <ssi> and required no FF2
[20:30:50] <ssi> just some P and FF1 to null the velocity offset
[20:34:16] <JT-Shop> Tom_itx, I get a bit of stretch on both axes and have to adjust my scale to make up for it
[20:36:18] <ssi> https://www.youtube.com/watch?v=14DKKsuCQWQ
[20:36:37] <ssi> I'm guessing most of this last bit of error noise is the torque ripple
[20:36:55] <ssi> now I can focus on trying to wring the error out of the hallstate converter
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[20:43:57] <JT-Shop> weird the the wave is different in each direction
[20:44:09] <ssi> yeah
[20:44:20] <ssi> and at high speed (480ipm), it's smooth in one direction but oscillates in the other
[20:44:23] <ssi> not sure what to make of that
[20:45:15] <ssi> but... not gonna jump to conclusions too much until I a) get the hall converter fixed, and b) get a load on it
[20:45:37] <ssi> now that I have velocity feedback, these drives are actually locking up and tuning even easier than the sinusoidals did
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[20:45:49] <ssi> I just had to set one on fire to get to this point :)
[20:54:13] <JT-Shop> I know what you mean, it is good to see something move
[20:56:38] <ssi> well I've bought something insane like fifteen drives at this point
[20:56:42] <ssi> I need to get some freakin closure :)
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[21:05:59] <JT-Shop> holy crap 15 drives?
[21:06:05] <ssi> heh yeah
[21:06:12] <ssi> well right off the bat there's the six parker drives
[21:06:17] <ssi> which are paperweights, sadly
[21:06:32] * JT-Shop doesn't care for Parker anything
[21:06:41] <ssi> yeah well I'm a bit biased against them now
[21:06:43] <JT-Shop> AC servors?
[21:06:46] <ssi> yeah
[21:06:53] <JT-Shop> servos
[21:07:10] <ssi> I have an additional set of challenges in that I'm using the original servos out of the machine
[21:07:15] <ssi> which are fanuc model 5 red caps
[21:07:30] <ssi> 1kw servos with 4-bit fanuc grey code commutation on the encoders
[21:07:37] <ssi> in lieu of hall sensors
[21:07:37] <Deejay> gn8
[21:08:04] <ssi> so I had to build a little cpld board to translate those
[21:08:13] <JT-Shop> wow
[21:08:18] <ssi> and I designed it to work with the parker drives, and such that the cabling would be convenient for them
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[21:08:37] <ssi> because the parker drives are sinusoidal, I did a pretty simple converter
[21:08:53] <ssi> sinusoidal drives will switch over to using the encoder for commutation after it gets referenced
[21:09:15] <ssi> the fanuc commutation has 16 states, hall has 6 states
[21:09:18] <ssi> they don't divide evenly
[21:09:35] <ssi> so with my straight lookup table, there's 7.5 electrical degrees of error in my hall state output
[21:09:42] <ssi> on 4 of the 6 transitions
[21:09:42] <JT-Shop> that sounds like some puzzle to sort out
[21:09:59] <ssi> which doesn't matter with a sinusoidal drive, because it's only lumpy for one rev
[21:10:22] <ssi> so I bought those amc SE10A20 sinusoidal drives, which are great but they're too small for these motors
[21:10:37] <ssi> they're 5Ap continuous and 10Ap peak
[21:10:43] <ssi> these motors are 6.8A stall
[21:11:06] <ssi> so I bought BE25A20 drives as well, which I got very very inexpensively thankfully
[21:11:10] <ssi> they're 12.5A/25A drives
[21:11:29] <ssi> and i set one on fire last night
[21:11:32] <ssi> so I ordered another set of three
[21:11:36] <ssi> that adds up to fifteen :)
[21:11:58] <ssi> but since the BE drives are trapezoidal, they use the hall states for commutation all the time
[21:12:10] <ssi> which means my lumpy, non-corrected hallstate converter isn't quite good enough
[21:13:01] <ssi> so what I'm doing is taking the encoder signals into the cpld, and writing some verilog to count lines beyond the index pulse and change hall states more accurately
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[21:13:31] <JT-Shop> holy crap
[21:13:37] <ssi> so it'll be sort of like the sinusoidal drives do: it'll use the lumpy, table-lookup hallstate values until it passes an index mark, then it'll switch over to using the encoder-derived, accurate states
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[21:13:48] <ssi> yeah.
[21:13:58] <ssi> all this because fanuc has a proprietary scheme to lock you into their drives
[21:14:08] <ssi> and because jon elson wants $150 per axis for his board which does this already
[21:14:11] <ssi> hahaha
[21:14:30] <ssi> and I'm stubborn as hell
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[21:17:50] <JT-Shop> I was fixing to say that I thought Jon had a solution for the red caps
[21:18:04] <ssi> yeah and I would have used it had it been sanely priced
[21:18:31] <ssi> that sort of extortion really irks me tho
[21:18:48] <ssi> I made 30 boards and populated three of them for less than the price of one of his converters
[21:19:40] <ssi> if I made all 30 of them I think the cost would be somewhere around $10 per
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[21:30:19] <CaptHindsight> lair82_ is gone, but I have no problems with his mainboard and the Wheezy ISO
[21:30:38] <CaptHindsight> everything just works
[21:31:16] <ssi> good to know? :D
[21:31:37] <_methods> i think he was having to use master to use the 7i80hd
[21:32:10] <JT-Shop> ssi, at least you have the savvy to sort out that kind of stuff
[21:32:26] <ssi> JT-Shop: yeah, and I enjoy doing it
[21:32:27] <ssi> so it's ok
[21:32:54] <ssi> plus, by diving into it, I now understand WAY more about ac servo commutation than anyone ought to ;)
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[21:34:11] <PCW> if its bumpy one way, you may have a offset in the commutation angle
[21:35:51] <ssi> so I transition at 0, 67.5, 112.5, 180, 247.5, and 292.5
[21:36:00] <ssi> so it's on time, late, early, on time, late, early, on time
[21:36:42] <ssi> but that's assuming that I have them wired correctly relative to the phases
[21:36:51] <ssi> it's possible the whole thing is shifted 60 degrees or something, if that's what you mean
[21:37:05] <ssi> if I swap A and C, then it doesn't run, it just sorta jitters in place
[21:37:09] <ssi> but I haven't tried other permutations
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[21:37:35] <dirty_d> v2.6.3 should compile right?
[21:37:47] <dirty_d> im getting the same error that I did compiling master
[21:38:03] <dirty_d> this line _setup.pythis = boost::python::object(boost::cref(this));
[21:38:24] <dirty_d> are you guys developing with an older version of boost?
[21:38:50] <dirty_d> damnit, im in the wrong channel
[21:41:31] <PCW> I would try a 1 count (22.5 degrees?) offset either way
[21:42:06] <ssi> 1 4-bit count is 22.5 degrees
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[21:44:36] * JT-Shop thinks a cold cerveza would go good with the BBQ copper
[21:47:49] <_methods> heheh hooray for scrap run party
[21:48:08] <_methods> scrap run oyster roast
[21:50:29] <ssi> PCW: you might be on to something
[21:50:53] <ssi> I arbitrarily started with fanuc code 0000, which is actually 1111 because my inputs are inverted
[21:50:59] <ssi> and 1111 is not 180 degrees out from 0000
[21:51:30] <ssi> but I did determine that the index pulse coincides with 1111 as seen by my inputs... so I'm going to try rotating the whole thing so it aligns based on 1111 as 0 degrees
[21:51:42] <ssi> that'll very slightly change the hall states
[21:51:50] <ssi> by probably about 1 count actually
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[21:56:09] <ssi> still sounds rougher in one direction
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[22:17:10] <JT-Shop> what would you use to drive some 24v DC brushed servos?
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[22:18:04] <ssi> I have a couple amc 80V max brush servo drives on hand
[22:18:09] <ssi> they're cheap on the ebays
[22:18:45] <ssi> actually the brushless drives will drive a brush motor also
[22:18:54] <ssi> but not the other way around
[22:20:32] <ssi> 12a8 is a 20-80V, 6A/12A drive
[22:20:34] <ssi> brush type
[22:21:07] <ssi> BE12A6 is 20-60V, 6A/12A brushless or brush, can use tachs or encoders for velocity feedback
[22:21:10] <ssi> or run torque mode
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[22:26:43] <JT-Shop> thanks
[22:27:38] <jdh> I have 20 or so be12a6's driving pinchwheels
[22:27:53] <ssi> they're fairly easy drives to deal with
[22:28:02] <ssi> and they can be had quite cheaply if you watch for deals
[22:28:16] <ssi> I think I paid $35 apiece for my 30A8Ts
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[22:54:19] <zeeshan> ssi any luck
[22:54:40] <zeeshan> nm
[22:54:42] <zeeshan> just scrolled up :D
[22:56:27] <PCW> fewer flames
[22:56:34] <zeeshan> haha
[22:56:45] <zeeshan> pcw
[22:56:51] <zeeshan> so i only neded a 5i25 and 7i77 right? :p
[22:56:56] <zeeshan> and some din rail connectors
[22:57:12] <PCW> Yeah that should be enough
[22:57:17] <zeeshan> okay awesome
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[22:59:08] <ssi> yeah I'm getting there
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