#linuxcnc | Logs for 2015-11-25

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[00:00:01] <Tom_itx> pretty sure mine would show about the same
[00:00:09] <_methods> is that pic from the mantis?
[00:00:17] <Sync> no
[00:00:42] <Sync> yeah, that was just a quick attempt
[00:01:58] <Tom_itx> http://tom-itx.no-ip.biz:81/~webpage/scope/scope1.jpg
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[00:02:45] <_methods> one day i'll get one
[00:03:24] <Tom_itx> http://www.amscope.com/7x-45x-binocular-stereo-zoom-microscope-with-double-arm-boom-stand.html?gclid=COaA6_iiqskCFQqPaQodgvoDpw
[00:03:48] <Tom_itx> that's a different base than mine
[00:04:02] <andypugh> Akex_: http://www.mini-itx.com/store/?c=34#JNF9C-2800
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[00:04:42] <Akex_> Thx andypugh ;)
[00:05:06] <Akex_> Andy your youtbe chanel is awesome !!!
[00:05:27] <andypugh> Thanks
[00:06:17] <andypugh> Talking of microscopes, I used to work for a company that made Xray microscopes. Those can produce images like that chip one, without damaging the encapsulation.
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[00:07:21] <Sync> well for scoping out the metal layers xray works pretty well
[00:07:29] <Sync> I need to get a microfocus xray source
[00:07:36] <andypugh> The picture here is a CT scan of BGA balls, in-situ after soldereing: http://www.nordson.com/en/divisions/dage/products/x-ray-inspection-systems/computerized-tomography-option
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[00:08:36] <Sync> Tom_itx: you can't take a picture like that with that one as you cannot do dark field illumination
[00:10:23] <Sync> I'm wondering if I really need to get the DIC setup
[00:12:27] <andypugh> Anyway, early start tomorrow
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[00:17:23] <Noxz> is the Hitachi m12vc (with precise colletts) still a great choice for a cnc?
[00:17:42] <Noxz> a cnc tool
[00:20:38] <Roguish> andypugh: there is a Zeiss division just here that makes Xray scopes, also.
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[00:28:58] <Tom_itx> Sync, yeah i know. i didn't get it for that
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[00:33:20] <Tom_itx> zlog
[00:33:20] <zlog> Tom_itx: Log stored at http://tom-itx.no-ip.biz:81/~tom-itx/irc/logs/%23linuxcnc/2015-11-24.html
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[00:35:58] <_methods> wow syfy didn't butcher the expanse
[00:36:34] <Tom_itx> i don't think sw likes my mates
[00:37:11] <Tom_itx> i did that distance one on the piston then joined the piston housing to the base and the piston quit moving
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[01:04:43] <Tom_itx> JT-Shop, i just took the parts i had put in the sub and put them in the main with slightly different mates and it seems to be working now
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[01:56:04] <Jymmm> Damn, check out the pics at the bottom... http://www.huffingtonpost.ca/2015/01/16/bc-woman-northern-food-crisis_n_6408508.html
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[05:11:33] <Crom> anyone know a channel for K40 laser cutters?
[05:11:56] <Crom> I just saw one on ebay for $397 shipped
[05:13:54] <Crom> seen Duc_mobile
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[07:48:23] <Deejay> moin
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[09:31:35] <ReadError> Crom
[09:31:39] <ReadError> is that the blue china 40w?
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[10:24:20] <markvandenborre> ReadError: k40 is the el cheapo mass cloned Chinese mini laser
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[11:02:04] <jthornton> morning
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[11:11:25] <ReadError> markvandenborre ah yea
[11:11:27] <ReadError> I have one
[11:11:46] <ReadError> recently got a few smoothie clones, will replace controller sometime and rid myself of chinese garbage software
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[11:15:08] <XXCoder> chinese own all
[11:15:17] <XXCoder> god was made by chinese
[11:16:07] <ReadError> the smoothies are from china too
[11:16:21] <chris_99> ReadError, are those an exact clone of the smoothieboard, not seen them before, got a link?
[11:16:31] <ReadError> chris_99 they are way nicer
[11:16:42] <XXCoder> universe rolled off chinese assembly lines 13 billion years ago
[11:17:22] <ReadError> http://www.aliexpress.com/item/3D-priter-control-board-MKS-SBase-V1-0-32-s-Motherboard-compatible-Smoothieware-open-source-firmware/32410815670.html
[11:17:39] <ReadError> https://github.com/makerbase-mks/MKS-SBASE
[11:17:57] <chris_99> interesting, cheers!
[11:18:10] <ReadError> http://www.dailygusta.com/photos/i-g3n2VKG/0/X3/i-g3n2VKG-X3.jpg
[11:18:22] <ReadError> better drivers, build quality is much better
[11:18:34] <ReadError> and only $50 vs $150 or w/e
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[11:29:12] <chris_99> ah neat
[11:29:17] <chris_99> i think it uses the same stepper
[11:29:21] <chris_99> driver that i bought recently
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[12:00:02] <jthornton> sweet 49 down 16 to go
[12:02:42] <malcom2073_> ReadError: That looks pretty sweet, and the price is much nicer than $150
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[12:11:45] <ReadError> chris_99 yea drv8825 or w/e
[12:11:52] <chris_99> mm that's it
[12:11:56] <ReadError> malcom2073_ yea, just everything is much nicer on it
[12:12:03] <chris_99> you got them, or still waiting for them ReadError?
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[12:26:28] <Tom_itx> jthornton, that's alot of beer in the morning
[12:27:50] <lair82> I don't know, as many problems as I have been having here, that many beers sounds like a hell of an idea right now ;)
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[12:38:53] <ReadError> chris_99 yea I got them
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[12:40:26] <chris_99> nice :) what software do you use on the PC, to control them? from their site it looks like theres a number of options
[12:40:46] <ReadError> using it for a pick-n-place project now
[12:40:55] <ReadError> the laser will have to wait a bit
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[13:02:28] <jthornton> lol
[13:02:53] <jthornton> wife thought it was thursday and didn't get up lol
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[13:05:27] <Tom_itx> oops
[13:06:11] <malcom2073_> Heh whups
[13:13:59] <__rob> https://www.youtube.com/watch?v=qqNOx57f2OU
[13:14:03] <__rob> anyone know what motor that is ?
[13:14:05] <__rob> or what type
[13:14:10] <__rob> crazy smooth
[13:14:33] <__rob> just says "dc motor"
[13:19:47] <Tom_itx> bldc probably
[13:21:00] <__rob> what is it about that motor that makes it so accurate though ?
[13:21:03] <__rob> a high pole count ?
[13:21:12] <__rob> slotless ?
[13:21:17] <Tom_itx> similar to a hdd motor
[13:21:53] <malcom2073_> __rob: Servo, you don't have the "steps" that a stepper has
[13:21:58] <Tom_itx> he said in the comments it was a bldc
[13:22:23] <__rob> malcom2073, no but there are still poles on bldc
[13:22:28] <__rob> and cogging
[13:22:54] <Tom_itx> i didn't notice cogging :)
[13:22:57] <malcom2073_> Sure, but you won't see that when run as a servo
[13:23:28] <__rob> when you say run as a servo, you are meaning the closed loop? or the type of commutation ?
[13:23:49] <Tom_itx> closed loop
[13:23:53] <malcom2073_> The only cogging you'll get is the lack of resolution in pole current control
[13:24:04] <malcom2073_> If that's fine enough, it'll be small enough you can't feel or see it
[13:24:28] <malcom2073_> Or the resolution of the encoder heh
[13:24:33] <__rob> yea, thats what I mean, to position in between poles you have different current on each phase
[13:24:59] <__rob> but no matter the resolution of the encoder, surely how finely you can position between poles is depndant on the motor only ?
[13:25:09] <malcom2073_> Dependant on the controller
[13:26:08] <__rob> so dependant how how well it can regulate the current to each phase and respond to changes in the encoder ?
[13:26:23] <malcom2073_> Yeah
[13:26:24] <__rob> so theoretically, even a low pole count bldc can be positioned like that witha fast enough controoler ?
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[13:26:52] <__rob> (and a good enough current regulation)
[13:27:02] <malcom2073_> Sure
[13:27:26] <malcom2073_> My brushed DC servo moves that smooth, with two poles
[13:28:28] <malcom2073_> Bad comparison, sorry heh
[13:28:42] <malcom2073_> But yes, even with only a few poles you can get smooth consistant motion under no load
[13:31:35] <malcom2073_> In any case, he doesn't say what kind of BLDC motor it is, so it may be a perfectly normal servo motor :)
[13:32:15] <greg_> servo motors brush or brushless normally have no cogging due to skewed laminations.
[13:36:38] <__rob> https://fmcc.faulhaber.com/details/overview/PGR_4411_13822/PGR_13822_13814/en/GLOBAL/
[13:36:55] <__rob> so theorectially something like that could run to very high resoltion
[13:37:00] <__rob> with a good enough encoder and control loop
[13:37:03] <greg_> driving a DC motor with strong cogging such that it positions between is akin to microstepping a stepper. possible, maybe not the best way for what you're trying to do
[13:37:17] <greg_> those motors should be slotsless and won't cog
[13:37:58] <__rob> yea, well this is where I am confused, as a stepper driving with n microsteps is very similar to commutating a bldc with a sinewave
[13:38:30] <__rob> problem with the (cheap) bldc i've tried is the cogging means the steps size varies,
[13:38:38] <greg_> right
[13:38:39] <__rob> but then the same happens with mirostepping
[13:38:43] <greg_> yes
[13:39:08] <greg_> to achieve the resolution you want, you need a motor that doesn't cog
[13:39:13] <__rob> so presumably for finest resoltion, 0 cogging, slotless motors is what I want
[13:39:27] <__rob> right - which apparently these faulhaber ones are
[13:39:43] <greg_> slotless may or may not be the answer.
[13:40:34] <__rob> ohh, for what reason ?
[13:40:45] <greg_> you still often get torque ripple.
[13:41:02] <__rob> ahh right, so 0 cogging is all I can about
[13:41:10] <__rob> care about*
[13:41:35] <greg_> it should make life much easier
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[13:53:21] <__rob> http://www.piezomotor.com/products/rotary/lr17/
[13:53:23] <__rob> or these
[13:53:29] <__rob> £800 a motor tho
[13:53:34] <jthornton> I guess I'll have plenty of time to clean up the beer cave in the next 4 days with all that rain on the way
[13:53:38] <__rob> really quite cool
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[14:01:33] <lair82> Good morning guys, I am going to try to not double post about my dilemma, but I am driving into a brick wall, at a high rate of fuel consumption!!
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[14:02:28] <lair82> I have been going over my config line by line changing ing different things for my rotary "A" axis, and cannot make heads or tails of what is going on,
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[14:12:45] <trentster> Hi all, does anyone care to fathom a guess at how much movement this actuator has and does anyone have a clue what kind of motor mount it has on top, it does not look like the normal nema 23 I have seen on other THK KR33's http://cl.ly/image/0e210V2T1R3k
[14:19:20] <SpeedEvil> I would expect the slide to go from the position it is with respect to that end, to the position it is in with respect to the other end - same gap
[14:19:27] <SpeedEvil> that looks like it's all the way to the right
[14:19:51] <SpeedEvil> Or very nearly so
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[14:22:46] <trentster> so what would you estimate 70mm of movement?
[14:23:42] <SpeedEvil> I don't know what size that is
[14:23:59] <SpeedEvil> If the 'slot' it can move in is about 85mm, then yes
[14:24:00] <trentster> well thats what I am trying to figure out
[14:24:39] <trentster> and the motor mount you ever seen something like that?
[14:25:19] <SpeedEvil> Sorry - I'm not finding anything remotely surprising or unusual about the above that could possibly confuse
[14:25:45] <SpeedEvil> the coupler goes on the end of the shaft to the motor mounted on the end
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[14:29:21] <trentster> SpeedEvil: every thk KR33 I have ever seen looks like this http://i.ebayimg.com/00/s/MTA2NlgxNjAw/z/ClAAAOSwPcVVnIj5/$_57.JPG
[14:29:30] <trentster> As you can see they are very different
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[14:30:08] <SpeedEvil> It is functionally identical
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[14:31:51] <trentster> not really
[14:32:28] <trentster> if a large spindle is attached it will not be able to clear the motor mount on the the 1 actuator but will on the other
[14:32:36] <trentster> so functionally quite different
[14:32:40] <trentster> :-)
[14:39:15] <CaptHindsight> Chinese smoothie clones heh, they should have just given them the plans 2-3 years ago since the devs were so altruistic
[14:39:37] <malcom2073_> CaptHindsight: They did, it's open source heh
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[14:42:34] <CaptHindsight> and a woosh for Mr Naive
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[14:44:57] <malcom2073_> My apologies, I didn't quite hear your tone of voice, speak louder next time perhaps? ;)
[14:45:10] <malcom2073_> Hard to tell the difference between sarcasm and ignorance on the internet
[14:45:17] <malcom2073_> Didn't know if you actually knew it was open source
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[14:48:42] <ReadError> atleast they improved it a bunch
[14:49:46] <malcom2073_> I seem to recall hearing somewhere that smoothie was working on a fpga/arm combo for their next version. If they fix their motion control it could actually turn into a decent controller
[14:49:57] <CaptHindsight> well the original design was by people with little hardware experience
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[14:54:15] <CaptHindsight> so more reinventing vs imx6 + mesa hm2-eth
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[14:55:19] <malcom2073_> It's about price vs functionality. If you want to plug in a SD card and have it go for $50, boom.
[14:55:34] <malcom2073_> imx6 + mesa + stepper drivers == expense
[14:56:38] <CaptHindsight> what is it going to control? a useful gluegun?
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[14:57:04] <malcom2073_> Yes yes, we all know your opinions on that.
[14:58:20] <CaptHindsight> myopia
[14:59:15] <malcom2073_> You make no sense most of the time
[15:00:36] <ReadError> i would still like to find an affordable auger valve solution
[15:00:43] <ReadError> but they are all very expensive
[15:01:11] <malcom2073_> ReadError: for solder paste?
[15:01:23] <ReadError> yup
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[15:01:54] <malcom2073_> I keep meaning to get into making my own pcbs, but design seems to elude me thus far
[15:10:29] <ReadError> I think the auger systems ive seen start around $4k
[15:11:01] <malcom2073_> Ouch heh
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[15:34:18] <MrSunshine_> ah finaly i have a frekkin square to check the machine with
[15:34:35] <MrSunshine_> 330x500mm DIN875/1 square .. should be good enough for a wood working machine
[15:35:15] <CaptHindsight> too bad there is no such thing as a conductive low viscosity fluid or adhesive that doesn't require an auger
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[15:36:05] <lair82> Question Gentleman, using Halscope should I be able to see the encoder.xxxx.xxxx.index-enable signal for a given encoder?
[15:41:19] <CaptHindsight> I also heard a rumor that electrical contacts may be bonded ultrasonically or with light using conductive photopolymers or with heat by sintering polymer coated conductive powders or blocked isocyanate conductive fluids
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[15:42:03] <CaptHindsight> that don't require an auger for deposition
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[15:47:10] <_methods> CaptHindsight: did you hurt his feelings
[15:47:18] <_methods> you know how sensitive he is
[15:49:35] <CaptHindsight> _methods: did you ever watch the PBS specials on the robot competitions at MIT back in the 80's?
[15:49:59] <_methods> no never saw those
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[15:52:12] <CaptHindsight> one of the judges/professors said his students suddenly become teachable in the final hours before it's hands down
[15:54:37] <_methods> yes but you make no sense most of the time lol
[15:54:58] <CaptHindsight> lol
[15:55:35] <Magnifikus> stupid question if i need to mill 30mm deep into aluminium, is it a problem to take mill with 22mm cutting length
[15:55:46] <Magnifikus> if the shaft has same diamater as the cutter?
[15:55:55] <Magnifikus> not sure if that would damage the shaft
[15:56:37] <_methods> yes that's bad
[15:57:04] <_methods> you want a shank smaller than your cutting diameter if you're going to cut beyond flute length
[15:57:17] <_methods> or it will rub on the pocket wall
[15:57:32] <Magnifikus> turn it down the 8mm for 0,2mm? :D
[15:57:34] <_methods> and aluminum will gall and build up on the shank and make a mess of your pocket
[15:57:43] <_methods> sure or grind it
[15:57:52] <_methods> you just need some clearance
[15:58:02] <Magnifikus> cause we just got a cheap spindle this 10k to 25k rpm 800watt thingies
[15:58:12] <Magnifikus> and its hard to get mills for that
[15:58:19] <Magnifikus> single flut small diameter
[15:59:14] <Magnifikus> k ty :)
[15:59:30] <_methods> np
[16:07:19] <CaptHindsight> malcom2073_: http://jordanbunker.com/archives/41 no auger required for traces
[16:08:47] <malcom2073_> I've seen that, pretty cool idea, but the auger isn't for creating circuits, it's for solder paste
[16:09:24] <malcom2073_> I've seen a syringe before with some success
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[16:24:36] <CaptHindsight> malcom2073_: lower the viscosity of the solder paste
[16:25:28] <CaptHindsight> the version you have used is most likely for being spread with a rubber knife and with a stencil
[16:26:02] <ReadError> yea a lot of paste is designed for stenciling
[16:26:07] <ReadError> not hand application
[16:26:44] <CaptHindsight> you can get off the shelf solder paste in a syringe
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[16:27:21] <CaptHindsight> I have some by Kester on my desk, might be 20 years old
[16:33:16] <CaptHindsight> http://www.kester.com/products/product/R276-Solder-Paste/ here is one that already formulated for dispensing with a syringe
[16:33:39] <_methods> hurry up and buy it all and put it on kickstarter
[16:33:48] <CaptHindsight> oh poop
[16:33:51] <_methods> and sell it as specially formulated solder paste for MAKERS
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[16:33:59] <_methods> and 3d printer people
[16:34:21] <_methods> they'll spend millions on stuff that already exists
[16:34:36] <_methods> just put it in a "green" package
[16:34:44] <_methods> and make an app for it
[16:35:02] <CaptHindsight> was waiting for the app
[16:35:06] <_methods> hahah
[16:36:46] <Jymmmm> Loetmichel2: Android http://www.ebay.com/itm/5-2M-Android-Endoscope-7mm-6-LED-USB-Waterproof-Borescope-Inspection-camera-/400980683624
[16:37:10] <Jymmmm> Loetmichel2: Also... http://www.gearbest.com/microscopes-endoscope/pp_235110.html
[16:37:15] <_methods> ooooh home colonoscopies
[16:37:32] <_methods> maker colonoscopy kit
[16:37:36] <Jymmmm> _methods: Just shove it up your ass buddy!
[16:37:39] <_methods> hahaha
[16:37:55] <CaptHindsight> Tom Coloniscope now in Lime green
[16:38:03] <Jymmmm> _methods: ...all 15meters worth
[16:38:38] <_methods> 2 cameras 1 butt
[16:38:54] <CaptHindsight> ahhh
[16:38:59] <_methods> hahahahha
[16:39:01] <_methods> that's wrong
[16:39:06] <Jymmmm> In .:| STERO VISION |:.
[16:39:08] <CaptHindsight> please stop
[16:39:41] <Jymmmm> CaptHindsight: NO LUBE FOR YOU! Next...
[16:40:47] <Jymmmm> _methods: Two Butts, One Camera. - Human Centipede Style
[16:42:20] <CaptHindsight> http://www.ebay.com/itm/EFD-NORDSON-740V-LIQUID-GLUE-LUBRICANT-DISPENSING-VALVE-187215-/301702124727 $145 used but there are Chine version new for around the same price
[16:42:52] <Jymmmm> ...and a compete setup
[16:43:32] <CaptHindsight> http://www.ebay.com/itm/Dispensing-Valve-SMT-SMD-PCB-Solder-Paste-Adhesive-Liquid-Dispenser-Nordson-PI1-/221939810349 knock-off version
[16:44:15] <Jymmmm> http://www.ebay.com/itm/Solder-Paste-Glue-Dropper-Liquid-Auto-Dispenser-Controller-982-US-Shipping-/191280179207
[16:44:57] <CaptHindsight> yeah ^^ only with a bit less control over the dispensing
[16:45:28] <Jymmmm> which?
[16:45:47] <CaptHindsight> Jymmmm: your link has less control
[16:45:58] <Jymmmm> ah
[16:46:42] <CaptHindsight> they use a piston in a syringe body in your link
[16:46:56] <CaptHindsight> so start and stop isn't as precise
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[16:48:58] <CaptHindsight> make an open version of this https://www.youtube.com/watch?v=n1a--Qfk8VA
[16:49:15] <CaptHindsight> they want ~$7k for those
[16:51:23] <CaptHindsight> piezo actuated valve (on a cantilever), and only a single nozzle
[16:51:53] <Jymmmm> https://www.youtube.com/watch?v=oxYKggceIPQ
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[16:53:17] <CaptHindsight> https://www.youtube.com/watch?v=1-fcXkquXdw high speed pneumatic version
[16:54:44] <CaptHindsight> jump to 1:30 they print and UV cure
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[16:57:42] <CaptHindsight> the reason you don't see all this tied together in one pcb printer is the lack of the cross licensing of the patents
[16:59:17] <Jymmm> CaptHindsight: your application for the dispenser?
[17:00:34] <CaptHindsight> Jymmm: an actual printed circuit board printer
[17:00:43] <Jymmm> ah
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[17:29:03] <CaptHindsight> _methods: https://youtu.be/e9ijA4UBCQ0?t=3m17s MIT Engineering Competition: Ping Pong Balls
[17:33:54] <_methods> cool
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[17:34:55] <_methods> nerds
[17:35:29] <CaptHindsight> I'd like to see a follow up after 30 years
[17:35:35] <CaptHindsight> where are they now
[17:36:47] <CaptHindsight> "Jerry still lives in his parents basement making the worlds finest ping pong ball collection robots"
[17:37:09] <t12> lol
[17:37:17] <t12> i think i remember seeing that video or followups to it as a kid
[17:37:28] <t12> engineering competitions like that are fun
[17:38:00] <CaptHindsight> only took another 25-30 years to end up as a TV show
[17:38:24] <t12> speaking of i wonder if they're gonna resign battlebots
[17:39:33] <CaptHindsight> the one that was on NBC or was it ABC is coming back with some changes
[17:39:38] <t12> abc
[17:39:44] <MattyMatt> they're still doing micromouse. I thought that was done to death by 1986
[17:39:50] <t12> been thinking about building something for it for a long time
[17:40:16] <t12> i used to work for the battlebots show
[17:40:23] <t12> its a huge amount of effort and $$ to build something tho
[17:40:35] <CaptHindsight> the original one on Comedy Central?
[17:40:36] <MattyMatt> maybe they changed the rules to disqualify Thumper, which was only limited by how strong the walls were
[17:41:13] <t12> and before that
[17:41:15] <t12> when they were on ppv
[17:41:22] <t12> i rebuild the entire floor
[17:41:25] <t12> rebuilt
[17:41:32] <t12> my dad built the saw and hammer weapons and the roof
[17:41:51] <CaptHindsight> t12: where was the studio?
[17:42:01] <t12> the shops on mare island
[17:42:01] <t12> or was
[17:42:03] <t12> i think it still is
[17:42:09] <t12> the rest was all onsite
[17:42:16] <t12> they did some in LA, vegas, treasure island
[17:42:57] <t12> they shot it like a live boxing match, then edited for tv later
[17:45:09] <MattyMatt> robocup is open season until they start calling fouls. atm you can trip your opponent etc
[17:46:00] <Jymmm> MattyMatt: the person or the robot?
[17:46:12] <MattyMatt> the robots can trip each other
[17:46:28] <Jymmm> whats the problem with that?
[17:46:51] <Jymmm> I saw one weapon that was awesome
[17:47:05] <Jymmm> centrifical weapon
[17:47:10] <MattyMatt> none, if you want to win a cup with a sneaky battlebot, but it's against the laws of football
[17:47:13] <Jymmm> fuck that thing was evil
[17:47:48] <Jymmm> football? as in soccer?
[17:48:15] <MattyMatt> I noticed when I was doing a soccer game on ST, football doesn't have rules it has laws
[17:49:47] <MattyMatt> a hangover from the days of 300 a side riots
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[18:09:04] <maxcnc> Alexande1B: ?
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[18:16:41] <maxcnc> Folks here in germany Football NFL is free to Air on sunday 2-4 games is it paytV in the USA or also free
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[18:21:41] <MrSunshine_> will be interesting to see if the new ER20 collets are better than the old one
[18:21:52] <MrSunshine_> got some frekkin bad vibrations using the 6mm collet i have
[18:22:03] <MrSunshine_> and it doesnt lock in the taper like the other ones does
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[18:29:27] <Roguish> MrSunshine: make sure the nut is really clean and the collet snaps into it properly.
[18:29:45] <Roguish> even a small chip can cause PIA
[18:31:12] <MrSunshine_> Roguish: cleaned it over and over and seems sometimes its vibration free but very seldom and never locks in the taper
[18:32:03] <Roguish> ok good luck. that's all i know.....
[18:32:39] <MrSunshine_> hehe =)
[18:33:02] <MrSunshine_> gonna try the new collets, the 8mm one locks in the taper, so does the hmm .. i think its 12 or if its 10mm one
[18:33:12] <MrSunshine_> its a china cheapie set i bought
[18:33:20] <MrSunshine_> got like 13 collets for like 20$ :P
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[18:34:14] <MrSunshine_> not any high precision i bought now either but atleast they were $13 - 14 or so a pop
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[18:35:15] <yasnak> china ones are what i use on our actual swiss machines
[18:36:01] <yasnak> I've had no problems really, only issues I've ever had is the little slotting saw's burr that they leave. just pop those off and presto, a rego at dirt cheap :P
[18:36:42] <MrSunshine_> but like i said .. seems to be one of the collets that is the big offender ... rest seem to work fine
[18:37:03] <MrSunshine_> tho i must admit i have ground the taper myself due to the fact that it had a throw of 0.1mm in the taper of the spindle on the motor when i got it
[18:37:46] <MrSunshine_> so might be a hundreths of in the taper .. making it not so good .. set up the grinding using sine bars and stuff but =)
[18:38:46] <MrSunshine_> but as some lock and some does i dont know realy =)
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[18:51:00] <maxcnc> question today my wifes knitting machine broke to many musels ;-)
[18:51:18] <maxcnc> someone got a good idee on how to clue PVC
[18:51:52] <CaptHindsight> glue PVC?
[18:53:32] <maxcnc> the broken parts together cluing oh my horrabel english now ends in understanding
[18:53:38] <CaptHindsight> PVC cement
[18:54:07] <CaptHindsight> PVC cement used for plumbing connections
[18:55:03] <CaptHindsight> https://www.youtube.com/watch?v=Zirp8vqApQc Joining PVC Pipe and Fittings with Primer and Solvent Cement
[18:55:23] <maxcnc> ah i see in the usa there are most plumbing in PVC here it is copper
[18:56:44] <CaptHindsight> maxcnc: where are you located?
[18:56:56] <maxcnc> germany
[18:57:14] <CaptHindsight> do they sell any solvent based glues?
[18:58:17] <CaptHindsight> Henkle makes them
[18:58:23] <CaptHindsight> Henkel
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[18:59:19] <maxcnc> tangit also
[18:59:20] <Tom_itx> http://weldon.com/solvent-cements/pvc-cements/
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[18:59:48] <CaptHindsight> http://en.henkel-mea.com/cps/rde/xchg/henkel_hme/hs.xsl/applications-6019.htm?countryCode=hme&BU=cons_crafts&parentredDotUID=000001F6FV,000001F912&redDotUID=000001FA90
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[19:00:26] <CaptHindsight> lookin fer der pipenstickerglue
[19:00:46] <CaptHindsight> my German is a bit rusty :)
[19:01:27] <maxcnc> i see always cake boss plumbing the cakes
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[19:02:42] <Tom_itx> don't want no faulty plumbed cakes
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[19:02:55] <CaptHindsight> the MSDS sheets are mostly Tetrahydrofuran, Acetone and MEK
[19:03:09] <greg_> goes good in cake
[19:03:23] <Tom_itx> both nice n healty ingredients there capn
[19:04:18] <CaptHindsight> fur der piperengluen not cakenbakin
[19:04:30] <maxcnc> they chust cut and leave all the shavings in the cake maybe clue also and drill wood things soldering ....
[19:04:43] <Tom_itx> heh
[19:04:44] <maxcnc> and sell it for 2kDollars and more
[19:06:10] <greg_> what to they use for sewage pipe in buildings in germany?
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[19:08:03] <maxcnc> Ht plastik with rubber seal
[19:08:43] <CaptHindsight> maxcnc: do they thread together?
[19:11:34] <CaptHindsight> maxcnc: in the US they use PVC like this in homes http://www.nachi.org/forum/attachments/f22/36074d1269884291-shower-drain-pipe-157910-025-small-.jpg
[19:11:50] <CaptHindsight> and the connections are glued
[19:13:00] <CaptHindsight> so you can find PVC glue anywhere
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[19:14:24] <maxcnc> its in the homedepo around the corner
[19:14:27] <maxcnc> Thanks
[19:14:33] <maxcnc> Gn8
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[19:16:22] <CaptHindsight> I wonder if they have to use compression fittings like these instead?
[19:16:30] <CaptHindsight> http://2.wlimg.com/product_images/bc-full/dir_82/2430265/clickfit-swr-pipes-1378793.jpg
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[19:42:22] <humble_sea_bass> compression fittings are a new trend since you can have unskilled laborers piece it together
[19:43:24] <humble_sea_bass> it doesn't last as long, and the cost is higher if you actually know how to solder/sweat joints in copper
[19:43:31] <CaptHindsight> hello HSB
[19:43:42] <humble_sea_bass> PVC is the worst thing ever though. and hello
[19:44:40] <CaptHindsight> vinyls have been proven to be safe :)
[19:44:53] <CaptHindsight> just not around living things
[19:45:47] <humble_sea_bass> my main beef is that it is crazy loud
[19:46:25] <humble_sea_bass> water flowing in a pvc pipe sounds like a hundreds of pennies rolling down the pipe
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[19:47:46] <CaptHindsight> thats what walls are for, to quiet down the penny sound
[19:50:16] <humble_sea_bass> NYC doesn't allow PVC drainage pipes in anything except 1-2 family homes so my OCD about pipe noise is seldom triggered here
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[20:01:14] <anomynous> why not
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[20:01:52] <CaptHindsight> building codes
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[20:02:12] <CaptHindsight> PVC is easier to install than copper or cast iron
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[20:03:48] <CaptHindsight> you won't find plastic electric conduit or romex anywhere in larger cities as well
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[20:07:13] <greg_> electrons are not as loud usually
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[20:07:59] <humble_sea_bass> yeah, but usuing unarmored electrical cables is a fire hazard
[20:08:53] <greg_> i know, we can't use them here
[20:10:39] <greg_> http://s214.photobucket.com/user/480sparky/media/Construction%20methods/romex1.jpg.html
[20:11:03] <humble_sea_bass> romex gore
[20:11:05] <Noxz> is the Hitachi m12vc (with precise colletts) still a great choice as the cnc tool?
[20:12:02] <humble_sea_bass> i really like that gas pipe on the left near the duct
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[20:15:22] <CaptHindsight> but natural gas is a toxic highly flammable substance that pumped into homes and offices
[20:15:50] <CaptHindsight> how can that be safe?
[20:16:09] <greg_> like that dihydrogen monoxide
[20:16:22] <roycroft> air can hurt you too
[20:17:23] <greg_> it's all about risk management, my inlaws are much more dangerous so i limit my exposure
[20:17:53] <CaptHindsight> oh great, now I'll be up note just worrying about terrorists, but dihydrogen monoxide, natural gas, romex, pvc, police and school principals
[20:18:04] <CaptHindsight> note/at night
[20:18:18] <greg_> http://www.electriciantalk.com/attachments/f2/67361d1446899794t-romex-stackers-romexbundling.jpg
[20:18:42] <CaptHindsight> is nothing safe anymore?
[20:22:39] <greg_> i just read that earth's magnetic field is twice as strong as the historical average so we don't ahve to worry about pole reversal for millions of years.
[20:22:53] <CaptHindsight> whew, that was close
[20:23:22] <_methods> oh thank god
[20:23:32] <_methods> all my magnets would have to be flipped
[20:23:53] <greg_> they said somethign about migrating animals going the wrong way
[20:24:00] <CaptHindsight> when that does happen does the earth flip over or just the magnetic poles?
[20:25:01] <greg_> dunno, but flipping over and flinging humanity off like a wet dog doens't seem like such a bad thing sometimes.
[20:26:12] <CaptHindsight> sounds like someone didn't get their daily does of Adele :)
[20:26:26] <_methods> hahah
[20:27:03] <greg_> it's been a rough week or two
[20:27:11] <CaptHindsight> it has the opposite effect on me
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[20:29:18] <CaptHindsight> anyone know how crappy the HF reflective tachometer is?
[20:29:48] <CaptHindsight> http://www.harborfreight.com/digital-photo-sensor-tachometer-66632.html
[20:30:31] <Computer_barf> i wonder if there is a an easy way to tell the diffrence between nickel plate and chrome plate
[20:30:53] <cradek> they are different colors
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[20:32:54] <Computer_barf> http://www.kleinpickups.com/images/4%20Covers%20Picture.jpg
[20:33:01] <Computer_barf> but damn they are so clode
[20:33:03] <CaptHindsight> nickel is often plated before chrome
[20:33:03] <Computer_barf> close
[20:33:31] <cradek> if you have them side by side it's easy to tell which is which, but if you only have one ...
[20:34:16] <Computer_barf> yeah i need to get me some samples
[20:36:18] <cradek> to me nickel looks more like silver (red/yellow), chrome looks more like stainless (blue)
[20:37:03] <CaptHindsight> was just going to ask if it looks that way
[20:37:27] <cradek> here are some really good photos: http://blog.philadelphialuthiertools.com/2013/06/17/differences-between-nickel-and-chrome-plating-for-guitar-hardware/
[20:39:24] * anomynous wonders if theres some kind of chemical polishing process for steel and same putique would nickel or chrome plate stuff
[20:39:25] <anomynous> ;D
[20:39:32] <Computer_barf> well this is going to sound insane but , I've been looking for some scrap sources I can find for getting nickel. I want to build some edison batteries.
[20:40:38] <Computer_barf> making iron oxide is pretty easy via electrolysis , and I have plenty of scrap plate I can cut the battery plates with
[20:41:14] <Computer_barf> so im looking for nickel sources so I can nickel plate the plates, and also make nickel 2 chloride
[20:41:55] <CaptHindsight> http://www.ebay.com/itm/like/390952855826?ul_noapp=true&chn=ps&lpid=82
[20:41:58] <Computer_barf> nickel iron batteries, having fallen out of commercial use, are insanely expensive to purchase
[20:42:17] <Computer_barf> oh yeah i know of course i can buy pure nickel plates
[20:42:42] <CaptHindsight> who knows what you might be getting as scrap
[20:43:07] <Computer_barf> i find it an interesting challenge though to consider the electrochemistry of purifying the nickel myself
[20:43:29] <Computer_barf> i already have some nickel plates in my electrochemistry collection
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[20:44:17] <CaptHindsight> how far back do you want to go? http://www.surigao-city.de/pictures/nickel_ore.jpg
[20:44:32] <Computer_barf> lol
[20:45:27] <Magnifikus> yay ZYNQ driving my stepper :)
[20:45:32] <Computer_barf> im not above mining and refining some things, but scrap is a readily available source of stuff for me
[20:45:55] <CaptHindsight> Magnifikus: are you using the ARM cores inside?
[20:46:04] <Magnifikus> yes for control
[20:46:06] <Computer_barf> I've already done copper plating from bars I melted from scrap tvs
[20:46:14] <Magnifikus> but i generate the steps in the fpga
[20:46:23] <Magnifikus> and the SPI to the driver is also done in fpga
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[20:46:37] <Magnifikus> i can watch 7 registers in upto 8 daisy chained drivers
[20:46:44] <Magnifikus> with 1ms update rate
[20:47:04] <Magnifikus> (using the TMC5130A stepper drivers)
[20:47:22] <Magnifikus> just plain memory mapped c code atm but its working
[20:47:32] <CaptHindsight> Magnifikus: I though I saw a report on the ZYNQ irq's being really slow
[20:47:53] <Magnifikus> eh i dont use irq's
[20:48:15] <CaptHindsight> ARM --> SPI --> gates for stepgen
[20:48:19] <Magnifikus> nah
[20:48:29] <Magnifikus> arm -> memory registers -> stepgen
[20:48:37] <CaptHindsight> ah ok
[20:48:41] <Magnifikus> arm -> memory <- spi monitors
[20:48:47] <Magnifikus> the spi is 100% fpga
[20:49:09] <Magnifikus> next is transfer this into a spartan 3
[20:49:22] <Magnifikus> and control the stuff over spi like picnc2
[20:49:25] <PetefromTn_> LOL Magnifikus.... classic
[20:49:32] <CaptHindsight> I have a few Zedboards but I never ended up using them
[20:49:42] <Magnifikus> if you want to donate em ^^
[20:49:47] <Magnifikus> i dont do spartan3
[20:50:10] <Magnifikus> running an enclustra zynq board that is abit too expensive for a controller @600€
[20:50:31] <Magnifikus> but i want to make a snickerdoodle baseboard
[20:50:43] <CaptHindsight> I was going to use them to control printheads
[20:50:46] <Magnifikus> https://www.crowdsupply.com/krtkl/snickerdoodle
[20:51:04] <Magnifikus> and run linuxcnc on the zynq later
[20:51:25] <Magnifikus> meanwhile a spartan3 to replace my picnc
[20:51:49] <Magnifikus> also thinking about putting the stepgen into the fpga also
[20:51:59] <Magnifikus> so HAL only needs to send and get position
[20:52:00] <CaptHindsight> the prices for ZYNQ must have really come down
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[20:52:11] <Magnifikus> digikey is 50€ the chip
[20:52:20] <Magnifikus> but im sure they got a cheaper source
[20:52:24] <Magnifikus> like 30$
[20:52:35] <CaptHindsight> $55 for the whole board
[20:52:44] <Magnifikus> so even lower
[20:53:01] <Magnifikus> its a unique chance for xilinx right now
[20:53:26] <Magnifikus> but on linuxcnc
[20:53:32] <CaptHindsight> did Altera lower their ARM+fpga prices?
[20:53:37] <Magnifikus> dunno
[20:53:52] <Magnifikus> the position-cmd gives target position to be in next cycle am i right?
[20:53:53] <CaptHindsight> my zedboards were >$200
[20:54:27] <Magnifikus> cause i dont rly understand how it halts an axis that way, i would overshoot always
[20:55:26] <Magnifikus> http://www.enclustra.com/en/products/system-on-chip-modules/mercury-zx5/ << that thingy i got in the lab to play :D
[20:55:31] <Magnifikus> software defined radar
[20:55:49] <CaptHindsight> Magnifikus: take the digikey price and cut it in half
[20:56:10] <Magnifikus> yeah
[20:56:17] <Magnifikus> for snicker im sure they partnered with xilinx
[20:56:50] <Magnifikus> https://raw.githubusercontent.com/magnifikus/TMC5130FPGA/master/doc/BD%20Test.png thats the current design
[20:56:54] <Magnifikus> only one stepgen
[20:58:01] <Magnifikus> not sure if i implement dcStep also, maybe guess just stall detection will do it
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[21:51:16] <XXCoder> check this out http://www.designnews.com/author.asp?section_id=1392&doc_id=267732
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[22:02:32] <Deejay> gn8
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[22:07:31] <greg_> Just replaced 400V, 4.7uF caps in 5 LED drivers in 5 GU10 bulbs. The 6th one which has never flickered already had a Rubycon cap in it. The rest were Chang.
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[22:23:33] <Magnifikus> thats a bad environment for caps, always hot
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[23:47:34] <jthornton> windoze explorer "Do you want to move or copy the files? Yes No"
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