#linuxcnc | Logs for 2016-04-15

[01:03:35] <joem_> i did it! my first machined piece!
[01:03:41] <joem_> https://i.imgur.com/ilqdukJ.png
[01:03:45] <joem_> 3 mistakes, but
[01:03:52] <joem_> live and learn
[01:12:05] <FloppyDisk> joem_ NICE...
[01:12:11] <FloppyDisk> congrats!
[01:12:55] <joem_> thanks! i'll tell you what, the first cut i made i was not entirely sure what would happen... hand hovering over e-stop...
[01:39:43] <FloppyDisk> joem_ If it's something new or I'm not sure what will happen, change your Z position coordinates (ie g54, g55 etc) and cut "in air"
[01:40:10] <FloppyDisk> It'll help out a bunch, I've done it, I think some the pro's have done it (more than once).
[02:20:40] <Deejay> moin
[03:05:02] <Valen> is there an way to have some keys set the jog speed?
[03:05:21] <Valen> so eg A = 50mm/m b=100 c=1000
[04:06:52] <enleth> any AC motor experts around?
[04:09:48] <enleth> got a reversible brushed AC motor, there's a center-tapped stator winding on it
[04:10:55] <enleth> it's also, originally, speed-regulated with a huge ass potentiometer
[04:11:20] <enleth> my most important question is - what's this type of motor called so I can read up on it on my own?
[04:14:05] <enleth> the closest I can find is a shunt-type wound field motor, but I'm pretty sure this one gets AC on the rotor winding
[04:19:30] <cpresser> enleth: universal-motor? i have never seen any of those with center-tap. but that doesnt mean they dont exist
[04:23:54] <enleth> it doesn't help that the schematic is half a century old and more concerned with aiding assembly than providing any understanding of the circuit, so the weirdo rheostat/switch/something combination is represented visually but not explained terribly well
[05:17:01] <MrSunshine> hmm trying to figure out how to make a realy long indicator for the cnc router ...
[05:17:10] <MrSunshine> so i can set the rails proper
[05:19:20] <XXCoder> dial indictor stem?
[05:20:27] <XXCoder> can always use long stiff rod then dial indictor
[05:21:57] <MrSunshine> yeah thats what im thinking ... i want to be able to change out the bar so i can have for shorter runs and longer runs also
[05:28:12] <MrSunshine> but i guess im complicating stuff more than they have to be like usual :P
[05:29:40] <XXCoder> lol
[05:29:47] <XXCoder> well can always use square method
[05:29:54] <MrSunshine> im thinking of making just two round pieces that fit together nice .. so they can slide, then a bering of the same type im having on the machine at the end, and the other end just a solid piece with a bering .. then seek the shortest point
[05:29:58] <XXCoder> check lengths of across endpoints
[05:30:02] <XXCoder> it should be even
[05:30:08] <XXCoder> if it isnt its not parallel
[05:30:30] <XXCoder> well I got a idea
[05:30:37] <XXCoder> one end is secured by bearind slider
[05:30:49] <XXCoder> other end isnt, and has dial indictor
[05:31:01] <XXCoder> you will be able to see dial move as it moves up and down
[05:31:01] <MrSunshine> yeah but its V prism rails
[05:31:09] <XXCoder> thats better than I thought
[05:31:20] <XXCoder> I was thinking usual round stock lol
[05:31:53] <MrSunshine> oh well, to the drawing board (go down to the shop and start looking at stuff and try to piece it together :P)
[05:32:16] <XXCoder> anyway if you can secure one end
[05:32:36] <XXCoder> yu can use dial indictor attached to other end to rub on rail see how stright it is
[05:34:20] <XXCoder> anyway im sure you will figure out :)
[05:34:48] <MrSunshine> yeah ... but for some reason i get panic attacks every time im going to start on that project :P
[05:35:49] <XXCoder> lol ok
[05:36:25] <MrSunshine> and ive got a 2.4 meter lathe standing in the way of the workbench .. but i still need the small lathe to be able to make parts for this so cant move that either :P
[06:32:06] * jthornton remembers how much he hates writing man pages
[06:35:49] <XXCoder> ypu the man lol
[06:36:18] <XXCoder> man for man is quite long
[08:11:59] <archivist> MrSunshine, wheels under the lathes :)
[08:12:16] <archivist> or better bigger workshop
[08:16:20] <gregcnc> do eproms really last ~15 years?
[08:20:40] <archivist> depends if they have had the window covered and kept in the dark
[08:21:48] <archivist> 15 years is getting old for most electronics
[08:22:42] <gregcnc> yeah, I'm looking at a machine and some chatter on the web mentioned that as an issue. my Emco is a 99
[08:27:08] <archivist> has it actually failed?
[08:28:32] <gregcnc> no. I'm not sure if it's something to worry about when the cards are buried in the cabinet I've never heard of one actually failing in these machines
[08:28:56] <gregcnc> but they are really only now getting to 15-16 years old
[08:29:21] <archivist> make a copy
[08:30:27] <gregcnc> I'll look into it
[08:31:05] <gregcnc> though, i'm fairly certain if the mill dies it will go to servos and linuxcnc
[08:45:46] <enleth> gregcnc: I've got EPROMs in the TNC control of my mill, as far as I can tell they're fine
[08:46:06] <enleth> 35 years old, maybe older
[08:46:17] <gregcnc> ah OK
[08:48:20] <archivist> they are in some of my test gear, also from the 1970's
[09:55:01] <enleth> how much sense does it make to use linuxcnc as a frontend to an existing hardware gcode processor?
[09:56:15] <enleth> rebuilding the laser plotter after it broke down and I'm seriously considering getting rid of the shitty chinese control board that accepts some kind HPGL's bastard child generated by a chinese Corel plugin that only works with a hardware USB key
[09:56:46] <_methods> sounds like a good idea
[09:57:14] <enleth> I could replace it with a 3D printer controller that came off an old Makerbot Cupcake I scrapped some time ago (oh damn, what a piece of shit that was)
[09:57:57] <enleth> it accepts a pretty sensible subset of gcode, supports homing etc., and some relay/mosfet switched outputs
[09:58:06] <_methods> but not real time
[09:58:13] <enleth> well, that's the point
[09:58:23] <archivist> I would not dream of doing that
[09:58:47] <enleth> all I need is really a frontend for this, that sends gcode over to that board
[09:58:55] <archivist> straight to linuxcnc
[09:59:26] <_methods> well if you just need something to send gcode terminal will work
[09:59:36] <_methods> you don't need anything fancy to just push gcode
[09:59:52] <enleth> ok, to be more precise: a GUI like linuxcnc's axis would be nice
[10:00:54] <archivist> then use axis and linuxcnc, the other gcode processor will be hard work
[10:03:06] <enleth> so, handing off *some* low level motion control to hardware, like with mesa, works, but substituting the whole gcode interpreter for an external component (I suppose it doesn't really matter at this point if it's hardware or software) is not really a thing, right?
[10:04:00] <archivist> not a thing
[10:05:26] <enleth> well I guess I'll just repurpose some 3D printer control panel for this then, doing a full linuxcnc retrofit for it isn't worth the effort
[10:06:03] <archivist> to me, linuxcnc, is the easy option
[10:06:06] <enleth> I'd have to get some kind of stepper control board I don't have at hand, whip up another PC that keeps acceptable RT timings and so on
[10:07:07] <enleth> that Cupcake board works well enough for moving a 2-axis machine and switching a single effector
[10:09:44] <archivist> I assume the machine already has strpper drivers, then you only need a bob and pc
[10:10:01] <enleth> it doesn't - they're integrated in the shitty chinese board
[10:10:38] <enleth> I'd have to use the cupcake stepper drivers anyway (separate boards)
[10:10:51] <enleth> and buy an LPT breakout
[10:36:15] <maxcnc> hi all April weather in Germany Rain Sun hail all in one day Thunder also im done hard week going home for Familie Weekend
[10:36:25] <maxcnc> keep on milling
[12:05:39] <JT-Shop> zlog'
[13:59:06] <yasnak> todays project: entirely bent gang plate from a new operator crashing subspindle into it. whoooooo
[14:00:50] <_methods> lovely
[14:01:42] <Loetmichel> whats a gang plate?
[14:01:50] <_methods> holds lathe tooling
[14:01:53] <_methods> on a linear plate
[14:02:00] <_methods> well screw machine tooling
[14:02:22] <Loetmichel> pic?
[14:02:52] <_methods> http://d2n4wb9orp1vta.cloudfront.net/resources/images/cdn/cms/0216_mms_mmm_3.jpg
[14:03:22] <os1r1s> Loetmichel http://www.cnccookbook.com/img/OthersProjects/Tools/HaasGang1d_12.jpg
[14:03:36] <Loetmichel> ahh!
[14:03:38] <Loetmichel> i see
[14:03:41] <_methods> http://www.swistek.com/images/swistek_ab_42_swiss_cnc_lathe_cad_layout.jpg
[14:03:45] <_methods> better pic of it
[14:03:56] <Loetmichel> like a multi-toolholder
[14:04:05] <_methods> yep
[14:04:12] <_methods> instead of a turret
[14:04:14] <_methods> it's linear
[14:04:24] <Loetmichel> i have seen these
[14:04:38] <_methods> more tools in less space
[14:04:47] <Loetmichel> sorry, not native english, didnt know that thats called gang plate
[14:04:48] <_methods> usually not much room around teh spindles in screw machines
[14:05:33] <Loetmichel> one of our parts manufacturers has a few "stangenlader-drehautomaten" that use a similar setuo
[14:05:42] <Loetmichel> setup
[14:05:50] <Loetmichel> they are not even CNC, just NC ;)
[14:06:15] <Loetmichel> one is ven controlled by a set of "program discs"
[14:06:33] <Loetmichel> instead of a paper belt with holes
[15:36:04] <Frank__12> hi guys, does anyone know a way to hand "mill
[15:36:15] <Frank__12> " flat a 40x25 cm surface of steel
[15:36:25] <malcom2073> Scraping!
[15:36:32] <_methods> files and scrapers
[15:36:45] <_methods> and lots of sweat
[15:37:03] <Deejay> and time and endurance
[15:37:20] <_methods> hehe
[15:37:23] <_methods> lots of free cardio
[15:38:34] <andypugh> You need three of them
[15:38:57] <andypugh> Then you can test them and screape them each to the other, and end up with perfect flats.
[15:39:03] <andypugh> Some effort may be required.
[15:39:12] <_methods> mild understatement
[15:39:18] <_methods> hehe
[15:39:56] <miss0r> or you could sell your hands and buy an old surface grinder...
[15:40:05] <miss0r> that is somewhat 'handmilling' ? :S
[15:40:49] <_methods> sounds like a great task for an apprentice
[15:41:09] <andypugh> Here is exactly how to do it: http://www.galleyrack.com/images/artifice/machine-shop/surface-finishing/hand-scraping/engineeringremin00port-pp233-237-img303-307-production-of-an-original-surface-plate.pdf
[15:41:26] <andypugh> And back when my dad started as an apprentice machine fitter, that is exactly what they did.
[15:41:55] <miss0r> precision handscraping the chinese way: https://www.youtube.com/watch?v=Y8NqeD73ZZ4
[15:42:24] <Deejay> hrhr
[15:42:26] <Deejay> muellernick :D
[15:42:45] <miss0r> yes
[15:43:15] <andypugh> My chinese lathe has both sides of the saddle moderatley well scraped to the slides. Unfortunately not both at the same time....
[15:43:36] <miss0r> hahaha
[15:44:19] <djdelorie> something I've wanted to try - get three thin round granite pieces and teach the CNC machine to lap them together
[15:44:21] <miss0r> For my lathe the following statement is true: Moveable axis & low tolerence... choose one
[15:44:42] <malcom2073> Hmm... where to find a larger volume (more than a single-chip squrt tube) of thermal grease? Is the stuff really *that* expensive?
[15:44:43] <miss0r> it is quite impossible to ajust to satisfaction
[15:44:53] <malcom2073> Mcmaster lists it for $100 per oz
[15:46:35] <andypugh> miss0r: Scraping could fix that.
[15:46:48] <miss0r> djdelorie, A friend of mine just bought a lapping machine. I Will use that for a project soon I think
[15:46:58] <miss0r> andypugh, A stick of dynamite will fix that
[15:47:11] <miss0r> to be honnest, it's a horrible lathe
[15:47:28] <andypugh> Mine is horrible but still turns out decent stuffs.
[15:47:29] <djdelorie> miss0r: I'm thinking all the cnc machine has to do is circles for an hour. Kinda an ideal task for a robot :-)
[15:48:03] <miss0r> djdelorie, Or hire a chinese worker. cheaper than electricity.
[15:48:16] <djdelorie> where's the fun in that?
[15:48:41] <djdelorie> I could also ask "Hey, anyone know where I can get a 13" round surface plate?"
[15:48:49] <miss0r> "I don't have harddrives, I keep 30 chinese students in my basement, and force them to memorize numbers"
[15:49:11] <djdelorie> silly, you only need 2 students, just teach them to yell in the right order...
[15:49:14] <Swapper_> PCW_: Hi, quick question, is it possible to use the ports on the 7i80 directly with a "BOB" and use HW stepgens? is there any firmware for that configuration ?
[15:49:33] <andypugh> djdelorie: There was nearly an answer there. A HD platter would be flat. But they are too small now.
[15:49:55] <djdelorie> I thought mirrors too but I want something self-supporting, to calibrate my 3D printer with
[15:50:04] <miss0r> andypugh, You just need to go back in time :) then they are big :D
[15:50:25] <Swapper_> i have done that on my 6i25 and you helped me with a firmware for it, but a friend is using a 7i80 and needs faster stepping than software stepgen can provide
[15:50:31] <andypugh> Swapper_: I am not PCW, but the answer will be “yes”.
[15:50:34] <djdelorie> delta printers have a weird "warp" in the virtual build platform that neither math nor mechanics can explain
[15:50:36] <miss0r> https://lh3.googleusercontent.com/-bEOkmdQsVrA/TvjzJyUr1tI/AAAAAAAARZQ/5PnRMRbPzm8/w787-h663/5GB1956vs2011_Final2.png
[15:52:03] <miss0r> djdelorie, Why round, if you don't mind me asking?
[15:52:23] <malcom2073> djdelorie: Both math and mechanics explain it quite well, you're doing the reprap method of guess and check
[15:52:29] <djdelorie> because delta platforms are round
[15:53:16] <djdelorie> and with three supports around it, a square plate won't reach all the edges at the same time
[15:53:51] <djdelorie> malcom2073: I wrote a delta simulator that could simulate all the measurement/setting errors, and was able to make all sorts of warps but none matched reality
[15:53:56] <malcom2073> Also, you don't need a plate, you only need a proper straightedge to do the guess/check.
[15:54:26] <malcom2073> djdelorie: That being said, reprap is known for taking shortcuts, so my bet would be the kinematics are fudged
[15:54:37] <djdelorie> so I want a known-flat reference surface to scan with the printer to isolate the build surface errors from the delta errors
[15:55:14] <djdelorie> I've checked the source code, as have many others, and the math is good
[15:55:34] <malcom2073> You should be able to accomplish that with a proper iron straightedge
[15:55:59] <djdelorie> I can't scan a straightedge with the printer's z-probe
[15:55:59] <andypugh> djdelorie: In that case perhaps one of the assumptions in the setup of the maths is wrong?
[15:56:19] <miss0r> djdelorie, why don't you mill a round surface you need and surface grind it?/have someone do it
[15:56:27] <Swapper_> PCW_: Hi, quick question, is it possible to use the ports on the 7i80 directly with a "BOB" and use HW stepgens? is there any firmware for that configuration ?
[15:56:32] <djdelorie> andypugh: that's what the simulator was for, to test the assumptions in the setup
[15:56:38] <Swapper_> i got disconnected
[15:56:50] <djdelorie> miss0r: where's the fun in that? ;-)
[15:56:54] <andypugh> (like the light inextensible strings and rigid point masses are not actually)
[15:57:04] <miss0r> djdelorie, it sounds somewhat fun :)
[15:57:24] <miss0r> Swapper_, No answer came for you, since you asked first - you didn't miss a thing
[15:57:36] <Swapper_> ty
[15:57:40] <andypugh> Swapper_: Actually, just use the 7i76 bitfiles on the 7i80. That will give you a bunch of stepgens. Turn off the other stuff to use it as IO.
[15:57:46] <miss0r> np
[15:58:10] <Swapper_> andypugh: ok so that will activate the stepgens in the 7i80!
[15:58:14] <Swapper_> perfect
[15:58:16] <Swapper_> ty
[15:58:34] <andypugh> Do you care what pins they are on?
[16:00:04] <Swapper_> i guess not, im only helping a forum frend thats having some issues
[16:00:33] <Swapper_> are there several bitfiles for different configs?
[16:00:44] <andypugh> Dozens :-=)
[16:00:49] <Swapper_> like 7i77 + 7i76 and so ?
[16:00:57] <andypugh> Yes.
[16:01:28] <andypugh> Including one for 4 x 7i76 with 20 sets of stepgen pins
[16:02:45] <Swapper_> is github the place to look for the bitfiles ?
[16:03:07] <andypugh> They all end up with Dir on pin 1, Step on pin 14, 2/14, 3/16, 4/17, 5/6
[16:03:08] <Swapper_> i know i have seen them a while back but cant remember where
[16:03:36] <Swapper_> yea i have done somting like this on my 6i25 on the internal port.
[16:03:52] <Swapper_> and got a custom bitfile from PWC back then, works prefect
[16:03:58] <Swapper_> perfect even
[16:04:01] <andypugh> If you download the file from Mesa all the bitfiles and source files are there. But also http://git.linuxcnc.org/gitweb?p=hostmot2-firmware.git;a=tree;h=756a26b2fb7df3550b08f8568c80b728818b9a8b;hb=756a26b2fb7df3550b08f8568c80b728818b9a8b
[16:04:49] <andypugh> The pin-out might not suit the in/out setup of the BoB. The Mesa cards are all configurable-direction devices, whereas the P-Port isn’t.
[16:05:59] <andypugh> Just checking, the Mesa directions match a parport set to output
[16:06:21] <Swapper_> yea it did on my 6i25
[16:06:24] <andypugh> So there should be no problems. You gain quadrature counters for free.
[16:06:59] <PCW_> It would be easy to cobble together a G540X4 or similar config that matches PP I/O directions
[16:07:07] <Swapper_> i think he only needs one step/dir output for a toolchanger so that should work
[16:07:16] <PCW_> (assuming you have a 7I80DB)
[16:07:23] <andypugh> Smart-serial won’t find anything, so will become GPIO. But you might want to mask the sserial channels anyway so their interrogation attempts don’t do strange srtuff.
[16:07:56] <andypugh> PCW_: The 7i76 bitfiles seem to match parport directions?
[16:08:15] <PCW_> if so its just by chance
[16:11:14] <andypugh> Actually, stepgen 2 isn’t right. I typoed.
[16:11:27] <Swapper_> PIN_G540x2_34.vhd does exist in the url u posted andypugh
[16:12:12] <andypugh> So?
[16:12:17] <Swapper_> but i guess the combo needs to be there for it to work 7i77 + G540 (para port layout=?)
[16:12:48] <andypugh> You can have stepgens with the normal 7i76 bitfiles.
[16:13:08] <andypugh> You didn’t mention that you needed a G540 pinout.
[16:13:14] <Swapper_> ok, it will match some output pins on a bob i guess
[16:13:23] <Swapper_> worth a try for shure
[16:13:47] <Swapper_> PIN_7I77_7I76_34.vhd should work then ?
[16:13:56] <Swapper_> what does 34 stand for ?
[16:14:23] <Swapper_> hes running a 7i77 so
[16:14:26] <andypugh> 34-pin card. The 7i80DB is a 68-pin crd
[16:16:24] <Swapper_> PIN_7I76x2_7I77x2_68.vhd then
[16:16:39] <andypugh> Right, if he uses a 7i77/7i76 bitfile then on the 7i76 port stepgens 0, 2, 3, 4 will work on a generic BoB. Stepgens 1, 6, 12 and 16 won’t work with most BoBs because the BoBs assume pin 15 is an input.
[16:19:20] <andypugh> PCW would know better than me what the best thing to do with the bitfile-step pin that is connected to a BoB Input pin. Leave it unconnected, at a guess?
[16:21:01] <Frank__12> Andypugh: thanks for the answer guys! i went afk :D sry i read the answers now
[16:22:23] <pink_vampire> hiiii
[16:23:17] <andypugh> Frank__12 You could try to set up something like this: https://www.youtube.com/watch?v=N1XwgdnA93I
[16:23:58] <Deejay> gn8
[16:25:05] <Frank__12> its just a 20x40 cm plate, i was thinking of file it with some kind of file and a piece of flat glass to test it
[16:25:09] <Frank__12> would that be ok-'
[16:25:13] <Frank__12> its for hiwin linear guides
[16:26:19] <andypugh> You don’t need to flatten the whole plate for the guides
[16:26:32] <Frank__12> true
[16:26:40] <Frank__12> i have a 98-8 starret
[16:26:43] <Frank__12> spirit level
[16:27:29] <Frank__12> this way i wouldnt have to add(weld) square pieces to machine for the back cassets (blocks
[16:28:15] <andypugh> So, you can shim one slide under each mounting screw.
[16:34:23] <Frank__12> i dont get your idea
[16:34:29] <Frank__12> so no filing?
[16:34:34] <Frank__12> and just shimming?
[16:39:32] <andypugh> If you set one rail exactly level, and then measure across with the level to the other rail, you can say that it is flat using the sprit level. (if all measurments are perfectly level, then they must also be flat)
[16:40:12] <andypugh> You probably want to shim both rails, actually, to guarantee straight too.
[16:40:49] <andypugh> Or, get the plate machined by someone who has a big mill or (preferably) a planer.
[16:41:33] <andypugh> You _could_ in theory hand grind / scrape / lap the plate flat with a precision spirit level and a pair of matched blocks.
[16:42:16] <andypugh> How good is your level? I am looking at one on eBay that is sensitive to 0.0005” per foot.
[16:44:15] <XXCoder> man nanomachines would be a game changer
[16:44:26] <XXCoder> make surface accurate to .000001"
[16:45:10] <evil_ren> nano machining?
[16:45:33] <yasnak> lol all about workholding maannn
[16:45:43] <yasnak> And time
[16:46:27] <evil_ren> nano fixtures
[16:46:41] <yasnak> I mean to a point, 0.000001 would need some pretty expensive and time consuming measuring devices
[16:46:56] <evil_ren> naw in 5 years any phone can do it
[16:47:09] <yasnak> you'll even be 3d printing it!
[16:47:23] <evil_ren> ya phones will print lunch and snacks
[16:47:33] <yasnak> I will be so fat
[16:47:48] <evil_ren> when everyone is fat no one is fat
[16:47:53] <yasnak> phone will need some sort of diesel generator of sorts
[16:48:05] <evil_ren> actually maybe it doesnt work like that
[16:48:09] <evil_ren> kbbl pizza
[16:48:12] <yasnak> lol
[16:48:35] <XXCoder> evil_ren: I bet first few uses would be making ultra precision parts
[16:48:45] <XXCoder> such as gage, Surface so on
[16:48:49] <yasnak> print myself a life
[16:48:53] <XXCoder> super accurate 123 blocks
[16:49:53] <XXCoder> initially by just nano maching existing parts, but later just building entire thing
[16:50:07] <Frank__12> andupugh: the Main level vials have graduations that are approximately 80-90 seconds or .005" per foot (0.42mm per meter)
[16:50:25] <yasnak> man, i have people who can't even figure out tenths and thou. we don't need to add more pls.
[16:50:51] <yasnak> https://www.youtube.com/watch?v=dtlLIllpl1w
[16:50:54] <XXCoder> yasnak: lol but then with it we can do far better parts
[16:51:05] <yasnak> Listen to the people in this guys class. I bet he drinks so much at night
[16:51:23] <Frank__12> lol
[16:52:44] <XXCoder> gibberish autocaptions
[16:52:59] <XXCoder> unless it IS accurate and the reason hes drinking at nights lol
[16:55:12] <andypugh> I have done nano-machining, 30 years ago
[16:55:37] <andypugh> https://en.wikipedia.org/wiki/Ion_milling_machine
[16:56:00] <XXCoder> andypugh: now make it billion times faster
[16:56:08] <XXCoder> then we're talking
[16:56:09] <andypugh> Yes, it wasn’t fast
[16:56:23] <andypugh> Took days per micron of thickness.
[16:56:40] <XXCoder> yeah
[16:56:49] <XXCoder> tiny friction of inch area too I guess?
[16:56:56] <Frank__12> awesome
[16:57:02] <Frank__12> lol
[16:57:09] <Frank__12> what is it used for?
[16:57:14] <evil_ren> andypugh: was this for a research thing or something industrial?
[16:59:04] <andypugh> research. Just as described in the article, I was making TEM specimens. http://link.springer.com/article/10.1007%2FBF00275452?LI=true
[17:00:03] <Frank__12> :O
[17:01:08] <XXCoder> interesting
[17:19:35] <pink_vampire> hi
[17:20:59] <pink_vampire> I need to make acrylic prism to take light that go up and convert it to ring light
[17:22:20] <pink_vampire> something like a light guide
[17:23:45] <pink_vampire> XXCoder: ^
[17:24:00] <XXCoder> you have name of that effect?
[17:24:57] <pink_vampire> http://www.ctl-components.com/images/ec/P1014399.jpg
[17:25:03] <pink_vampire> you know that stuff?
[17:25:22] <XXCoder> ahh plastic that redirects light
[17:25:25] <pink_vampire> http://img.directindustry.com/images_di/photo-m2/15216-8806806.jpg
[17:25:26] <unfy> just looks like light channels to me :D
[17:25:30] <pink_vampire> yes..
[17:25:43] <XXCoder> yeah but not sure how to design it in a effective
[17:25:47] <XXCoder> *way
[17:26:21] <unfy> it requires experimentation
[17:26:40] <unfy> we've had a lot of stuff depending on material type, angles, surface etc
[17:26:56] <XXCoder> indeed
[17:27:13] <XXCoder> refraction and interior refraction
[17:27:31] <pink_vampire> I want to convert 3 smd leds to 12.5mm ring light
[17:27:32] <XXCoder> I nderstand concept but unfortunately thats where it ends
[17:28:11] <andypugh> I played about with this to make a clock.
[17:28:37] <archivist> machine some plastic on the lathe and polish it
[17:28:54] <pink_vampire> "on the lathe"
[17:29:01] <pink_vampire> I don't have one..
[17:29:06] <archivist> essential tool
[17:29:15] <XXCoder> archivist: can also do chemical polish for nice very smooth finish
[17:29:27] <djdelorie> you can do some light pipes with 3D printers and t-glase filament
[17:29:45] <pink_vampire> and it should be very thin
[17:30:13] <pink_vampire> I hope to make it 1mm or thinner,
[17:33:38] <andypugh> I can’t seem to find any pictures of the clock. It used two line-generation lenses rotating in concentric test-tubes. One was green, one was red. The idea was to turn a whole wall into a clock. It was very much a partial success.
[17:34:05] <XXCoder> andypugh: heh has seen many strange clocks
[17:34:31] <andypugh> Making the lenses was difficult. I ended up buying a plastic magnifying glass and cutting it up. Normal engineering transparent material was too turbid.
[17:38:19] <pink_vampire> http://www.digikey.com/product-detail/en/lumex-opto-components-inc/SML-LXFP0603SUGCTR/67-2222-1-ND/4496789
[17:39:00] <pink_vampire> this is the led that I think to use.
[17:39:03] <archivist> I used that clear plastic rod modellers used for my experiments in led to point light
[17:43:57] <JT-Shop> dang BP pc won't boot up...
[17:44:03] <jdh> pink: I have a 3-jaw lathe type chuck on an R8 for my G0704
[17:46:38] <pink_vampire> I did a sketch on paper..
[17:50:55] <pink_vampire> jdh: on the spindle or 4th axis?
[17:51:18] <jdh> spindle (re: your not having a lathe above)
[17:55:05] <pink_vampire> http://i.imgur.com/zid1rhu.png
[17:55:15] <pink_vampire> this is the idea..
[17:55:57] <pink_vampire> it's a cross section side view
[17:56:29] <pink_vampire> it's supposed to be a ring / cylinder
[17:56:52] <pink_vampire> XXCoder: ^
[17:57:00] <pink_vampire> archivist: ^
[17:57:04] <XXCoder> yeah
[17:57:23] <pink_vampire> did you saw the pic?
[17:58:44] <XXCoder> yeah though still no idea how to design one nor mill it :)
[18:00:03] <pink_vampire> the angle part supposed to be flat or rough surface?
[18:00:14] <XXCoder> optically smooth flat
[18:00:48] <XXCoder> pink_vampire: https://en.wikipedia.org/wiki/Total_internal_reflection
[18:00:57] <XXCoder> read up and it explains how TIR works
[18:01:16] <XXCoder> you have to figure angles so light stays in plastic till it hits surface you want it to go out of.
[18:02:47] <pink_vampire> why I can't just drill a hole and use normal 3mm led????
[18:03:22] <XXCoder> that would work too, though maybe need bit more work sealing if want waterproof
[18:04:50] <pink_vampire> XXCoder: all the time i like to make stuff complicated.
[18:05:16] <XXCoder> lol ok
[18:05:27] <pink_vampire> if it's normal and too easy it's make me boring
[18:07:35] <jdh> http://www.aliexpress.com/item/120MM-car-LED-angel-eye-lamp-angel-eye-aperture-1210-angel-eye-LED-decorative-lamp-39SMD/32622562622.html?spm=2114.01010108.3.10.F8zeg3&ws_ab_test=searchweb201556_9,searchweb201602_1_10017_10005_10006_10034_10021_507_10022_508_10020_10018_10019,searchweb201603_1&btsid=63cfe07a-6b19-4cb6-89cf-1874ad03b3cc
[18:07:42] <jdh> wow. ugly url.
[18:08:40] <XXCoder> 120mm way big, she wants 12 mm heh
[18:08:51] <jdh> oh, that's tiny
[18:08:51] <XXCoder> cool though
[18:09:41] <jdh> what do you do with a half inch ring light?
[18:13:29] <JT-Shop> I think this D510MO works but no lan
[18:13:45] <pink_vampire> 12.5 mm
[18:13:50] <pink_vampire> OD
[18:14:00] <pink_vampire> jdh: yes.
[18:21:16] <pink_vampire> https://www.solidworks.com/sw/products/details.htm?productid=4154
[18:22:18] <XXCoder> wow that is nice
[18:23:24] <pink_vampire> what is the price?
[18:24:32] <XXCoder> more than i can afford - no price so far anywhere lol
[18:25:11] <pink_vampire> so complicated
[18:26:07] <CaptHindsight> XXCoder: the main problem with nano machining is losing track of where you left the mill or lathe if you weren't paying attention :)
[18:26:46] <XXCoder> lol I'm pretty sure it wouldnt be lathe or mill
[18:26:53] <XXCoder> just machines, guided by computer
[18:26:55] <pink_vampire> https://www.youtube.com/watch?v=OFAHpidYYEk
[18:28:01] <CaptHindsight> http://www.popularmechanics.com/science/energy/a20406/single-atom-engine-works/
[18:28:11] <XXCoder> honestly pink, all you have to do is make sure angles is less than critical angle till light hits where you want it to exit
[18:29:11] <pink_vampire> 45?
[18:30:29] <pink_vampire> http://www.breault.com/software/try-apex-free
[18:34:26] <alex4nder> the industrial supply place just sold me a quart of way oil,.. they put it in a milk jug for me
[18:34:36] <alex4nder> I think they were taking pity on how small my machine is
[18:36:45] <XXCoder> lol
[18:38:21] <CaptHindsight> I have drums of way and spindle oils, but shipping might cost $13
[18:38:51] <XXCoder> man time lord techology would rock.
[18:40:05] <CaptHindsight> XXCoder: what would you do? Go back in time, kill a dinosaur in the exact spot you need the oil today?
[18:40:26] <XXCoder> nah for compacting large order into tny package
[18:40:46] <XXCoder> get 1' x 1' x 1' box that hold entire large cnc machine
[18:43:13] <XXCoder> CaptHindsight: it apparently also shifts weight away as doctor who's tardis is ... very large inside yet it dont crush land when it lands. heh
[18:48:31] <JT-Shop> wonder if I have a bad hard drive
[18:50:27] <JT-Shop> oh well I'll swap more parts Sunday
[18:50:43] <andypugh> JT-Shop: Why no LAN?
[18:51:11] <JT-Shop> no boot up
[18:51:26] <JT-Shop> changed motherboards but still it won't boot up
[18:51:40] <pink_vampire> I did a test now with laser,
[18:52:05] <andypugh> Oh, and JT-Shop next time someone on the forum says “no internets in the shop” we should remember to suggest that they can make their phone into a temporary hotspot.
[18:52:40] <pink_vampire> more then 90% of the light go through the acrylic sheet.
[18:52:42] <JT-Shop> that would be neat
[18:53:01] <JT-Shop> provided you live somewhere with a signal
[18:53:33] <JT-Shop> 3 years ago a cell phone did not work at my house unless you stood on the roof at the very top
[18:54:34] <JT-Shop> andypugh: do you think people just don't understand the 50 pin family of cards?
[18:55:00] <andypugh> I fear so. which is a shame, as they can do rather more.
[18:55:35] <JT-Shop> I guess I need to set one up and do some write up on them
[18:55:41] <andypugh> I am using a 6i24 and it is great.
[18:56:09] <unfy> i do kknow acryllic and polycarbonate behave differently. one is far better than the other.
[18:56:18] <JT-Shop> I have 5i24's in stock but held off on the 6i24's as I've not sold one yet
[18:56:27] <unfy> i wanna say acryllic was better than poly ... but... not sure. might be wishful thinking given cost of poly :D
[18:57:06] <Meduza> unfy: that depends on how you define better
[18:57:11] <JT-Shop> am I missing anything important on the 50 pin page http://mesaus.com/index.php?route=product/category&path=63
[18:57:15] <Meduza> They are different
[18:57:19] <andypugh> unfy: For optical applications the state of the material might matter more than what the material is. It needs to be homogenous and low turbidity.
[18:57:29] <djdelorie> andypugh: my cnc machine has a wifi router in it, in "client" mode, just to solve the "no internets in the shop" problem.
[18:57:53] <andypugh> djdelorie: Well, yes, but with all due respect, you are a geek.
[18:58:13] <djdelorie> there is that, and yes, the wifi box runs DD-WRT :-)
[18:58:50] <andypugh> Whereas the folk JT and I struggle ti support are those saying “I has a CNC machine in my workshop, with no network, how do I install LinuxCNC?"
[18:59:11] <JT-Shop> or how do I upgrade LinuxCNC
[18:59:17] <djdelorie> or "what's a network?"
[18:59:25] <JT-Shop> that too
[19:00:00] <djdelorie> actually, the reason I have a wifi box is I couldn't figure out how to install the wifi card drivers without wifi...
[19:00:18] <andypugh> JT-Shop: You lack the venerable 5i20
[19:00:49] <andypugh> I run powerline ethernet to the workshop. Works a treat
[19:01:10] <JT-Shop> doesn't the 5i24 take the place of the 5i20?
[19:01:26] <andypugh> Though, I kick myself that I didn’t bury Cat5 when I buried the SWA.
[19:02:24] <andypugh> JT-Shop: Yes, but the 5i20 is more famous. The 5i24 is better and cheaper, but you still see new 5i20 builds on the forum.
[19:02:46] <R2E4> Yeah!!! Mach3 trajectory planner just caught my router machine on fore......
[19:03:06] <andypugh> Maybe you should have an entry for 5i20 saying “superseded, buy this instead, it’s cheaper”
[19:03:39] <andypugh> R2E4: You have a golf-playing robot?
[19:03:53] <JT-Shop> well I do have one 5i20 that I could put on the store
[19:05:24] <R2E4> andypugh: what?
[19:06:13] <R2E4> https://imagebin.ca/v/2dtVnYGzFwFZ
[19:06:48] <R2E4> https://imagebin.ca/v/2dtVyTmnpqUv
[19:06:58] <R2E4> I have to get Lcnc on this machine
[19:07:49] <andypugh> R2E4: “Fore” is apparently what you shout when a golf shot has gone off target
[19:08:03] <R2E4> JT-Shop: you have 5i25 and 7i76 in stock?
[19:08:39] <JT-Shop> you bet
[19:08:46] <andypugh> R2E4: Are you sure you can blame Mach?
[19:08:55] <JT-Shop> all kind of stuff in stock
[19:09:00] <R2E4> ok
[19:09:38] <JT-Shop> and I ship very fast
[19:09:51] <JT-Shop> sometimes before I get the order by esp
[19:10:32] <R2E4> andypugh: not 100 % sure, but am pretty sure. Cut 80 pieces perfect then out of the blue it does weird cuts, then it will cut maybe 120 more then some weird shit.
[19:10:41] <andypugh> (New 5i20 question just appeared on the forum)
[19:11:25] <R2E4> This time the Z took a dive. Could be the Z motor, but never had a problem with it.
[19:11:39] <JT-Shop> lol he hijacked the thread
[19:12:13] <andypugh> I was forced to correct his arithmetic
[19:13:15] <JT-Shop> lol
[19:14:35] <JT-Shop> my neighbor showed me how to make home made sauerkraut, much better than any I've tried in the past
[19:14:57] <JT-Shop> http://gnipsel.com/recipes/fermented/sauerkraut.html
[19:15:38] * JT-Shop puts on the chef hat and starts dinner
[19:15:53] <andypugh> I have liked every saurkraut I have tried, but that has not been enough samples to form an appreciation.
[19:16:50] <JT-Shop> I keep a jar on the counter fermenting all the time now
[19:17:03] <JT-Shop> talk to you later, time to cook
[19:17:25] <andypugh> Back of the Holbrook is now painted, VFD installed and wiring pretty much complete other than control panel. Time to push it to the other wall and finish it off. It could potentially make parts this weekend. https://picasaweb.google.com/108164504656404380542/Holbrook#6273934017651515538
[19:20:24] <Frank__12> andy, sorry for so many questios, but what do you think of making my own flat surfaces by the 3 plate method?
[19:21:12] <Frank__12> as i was saying early, i am building a z axis, and i need 3 flat surfaces, (blocks) (rails) (spindle plate)
[19:21:19] <andypugh> I think that for the size you are talking about it will take longer than your attention span.
[19:21:22] <Frank__12> thats 2 plates total of 3 surfaces
[19:21:33] <Frank__12> for 40x22cm?
[19:21:41] <andypugh> And I am prepared to credit you with an attention span 10x mine
[19:22:06] <Frank__12> :D
[19:22:46] <andypugh> I think the ones my dad and his fellow apprentices made were 3” x 6” and they spent 2 weeks on it, while being berated by foremen.
[19:23:15] <Frank__12> oh boy
[19:23:24] <Frank__12> what about aluminum??
[19:23:47] <Frank__12> 1/3 the time?
[19:23:47] <andypugh> Probably no easier.
[19:23:52] <Frank__12> lol
[19:23:56] <Frank__12> ok, i will send to machine
[19:24:07] <Frank__12> and good bye problem
[19:24:42] <andypugh> Might be worth looking at the Mechmate forums. They have an almost identical problem to solve during their build.
[19:25:31] <Frank__12> ill check, dont recall the issue, but i will check for sure
[19:27:46] <andypugh> If I absolutely had to do what you need to do, with no equipment, I think I would shim up the guides outside the expected mounting points and make a temporary gantry to ride on them to grind the rail seats with a dremel. Or possibly hand-shape them with a lathe tool like my dovetail jig.
[19:29:08] <andypugh> In either case, you should mount the base plate on the final support frame first.
[19:29:53] <andypugh> And, in fact, it might well be that your best bet is just to bolt on the rails as-is then adjust the table feet to straighten the machine.
[19:30:45] <andypugh> ie, use a concrete floor and epocy studs to pull the machine straight
[19:30:52] <andypugh> (epoxy)
[19:35:38] <andypugh> Right, I opted-out of a weekend with friends in Wales on motorbikes this weekend because the weather was foul. I think I need to make the sacrifice feel worthwhile by getting a lor done on the CNC projects, so I am going to have a (relatively) early night.
[19:35:45] <andypugh> So, goodnight all.
[19:55:54] <pink_vampire> is it easy to cut?
[19:55:57] <pink_vampire> http://www.ebay.co.uk/itm/OD-8mm-x-400mm-Bearing-Steel-Cylinder-Liner-Shaft-Optical-Axis-/281912871209?hash=item41a3510929:g:R98AAOSwT5tWOMbx
[19:56:11] <pink_vampire> I mean to machine it..
[19:56:12] <XXCoder> pink_vampire: other test you can do is angle the laser to one of edges
[19:56:18] <XXCoder> see if it bounces off end
[19:56:25] <XXCoder> and find what angle it would bounce
[19:56:34] <XXCoder> and what angle it does not
[19:56:37] <pink_vampire> i did it, and it work fine
[19:56:56] <XXCoder> so what was its internal refraction angle?
[19:57:10] <pink_vampire> 0
[19:57:14] <pink_vampire> nothing
[19:57:34] <pink_vampire> I'm going to use 90 deg led
[19:57:35] <XXCoder> it does not bounce when you shine in edge to another edgem, angled?
[19:57:43] <pink_vampire> to solve it
[19:57:56] <pink_vampire> no
[19:58:04] <XXCoder> edges smooth?
[19:58:12] <pink_vampire> no
[19:58:16] <pink_vampire> machined
[19:58:31] <XXCoder> hmm well can always use 180 deg led :)
[19:58:46] <pink_vampire> but i'm going to use 90 deg led.
[19:59:04] <pink_vampire> and then it's not going to be a problem
[19:59:14] <XXCoder> err I meant 90 lol
[19:59:23] <pink_vampire> but now I have other issue
[19:59:48] <pink_vampire> I want to machine shaft
[20:00:16] <pink_vampire> and I'm not sure what kind of steel is that.
[20:00:34] <pink_vampire> it a bit flexible
[20:00:36] <djdelorie> they make 180 degree SMT leds... they're designed to shine through holes in the PCB under them.
[20:01:04] <pink_vampire> the steel is hard as my file
[20:01:32] <pink_vampire> it's look like the stuff here
[20:01:33] <XXCoder> what do you want to machine on it?
[20:01:46] <pink_vampire> http://www.ebay.co.uk/itm/OD-8mm-x-400mm-Bearing-Steel-Cylinder-Liner-Shaft-Optical-Axis-/281912871209?hash=item41a3510929:g:R98AAOSwT5tWOMbx
[20:02:27] <pink_vampire> to cut something like the hex, but smaller and more complex
[20:02:46] <XXCoder> cool
[20:02:51] <XXCoder> man you make weird stuff
[20:04:04] <pink_vampire> woman*
[20:04:19] <XXCoder> I know youre female
[20:04:51] <pink_vampire> I know it's an idiom
[20:04:55] <Duc> stupid question for people with rotary tables on their mill. do you run a seperate profile when you unhook the rotary so you dont have homing issues
[20:05:17] <Jymmm> XXCoder: (There's no proof of that)
[20:05:25] <XXCoder> Jymmm: I dont care.
[20:05:29] <XXCoder> if she says she are she are
[20:05:54] <Jymmm> XXCoder: I say your woman too!
[20:06:01] <XXCoder> even if her body is 400 pound ape
[20:06:08] <XXCoder> I dont own any woman?
[20:06:15] <XXCoder> thats slavery!
[20:06:22] <Jymmm> XXCoder: You ARE woman, we hear you roar!
[20:06:55] <XXCoder> roar dunno if I can do that. scream, sure lol
[20:07:21] <Jymmm> ...like a girl!
[20:07:32] <XXCoder> I probably scream like girl. dunno
[20:07:43] <XXCoder> I dont use my voice much.
[20:07:51] <Jymmm> XXCoder: cc yourself and find out =)
[20:08:20] <pink_vampire> my BF say that I'm using my vice too much.
[20:08:25] <pink_vampire> voice*
[20:08:50] <XXCoder> cc dont tell voice types unless its a key plot point
[20:09:01] <Jymmm> Is that a kinda way of saying you talk too much?
[20:09:05] <Jymmm> kind*
[20:09:06] <XXCoder> like this (deeper voice) whatever
[20:09:21] <Jymmm> XXCoder: Give it a shot, ya never know
[20:09:32] <XXCoder> lol nah
[20:12:00] <pink_vampire> omg
[20:12:52] <Jymmm> Yes, my child?
[20:13:14] <Duc> how are you using your voice to much
[20:13:21] <pink_vampire> this shaft can leave a mark on a ball bearing.
[20:13:51] <pink_vampire> Duc: I like to talk..
[20:14:26] <XXCoder> Duc: its easy really. start talking. keep going till someone complain. congats you unlocked too much talking acheviment!
[20:14:59] <Jymmm> Duc: and XXCoder should know, he's an expert at it!
[20:15:27] <XXCoder> I do talk too much sometimes lol
[20:15:35] <Jymmm> lol
[20:15:38] <XXCoder> though not voice
[20:16:07] <Jymmm> Eh, crazy glue is a simpler cure.
[20:16:21] <Duc> LOL yea most days I dont get in trouble for talking to much more what comes out
[20:17:45] <pink_vampire> Jymmm: I have a crazy glue remover
[20:18:08] <pink_vampire> http://i.imgur.com/QHHaPCr.png
[20:18:31] <pink_vampire> any idea how to machine it?
[20:18:32] <XXCoder> man you make weird parts. and 4.7 mm? dang thats tiny
[20:18:42] <XXCoder> suggestion? hole first, bolt down
[20:18:52] <XXCoder> side holes no idea
[20:19:15] <Duc> maybe bolt to a rotary after profile is made
[20:19:16] <pink_vampire> and I want to cut it from the shaft metal
[20:19:39] <pink_vampire> I have just 3 axis machine and cuuuute V block
[20:19:58] <XXCoder> pink_vampire: there is non-motorized rotatry position thingy
[20:20:14] <XXCoder> it uses holes and pegs so you can rotate it to certain degrees
[20:20:19] <pink_vampire> what type of steel is used to make shafts?
[20:21:45] <pink_vampire> chrome vanadium?
[20:21:59] <Duc> what kind of shafts/
[20:22:02] <Duc> ?
[20:22:05] <Duc> what purpose
[20:22:52] <pink_vampire> I have here rod of steel that used to be a shaft or something like that.
[20:23:02] <pink_vampire> it is hard as rock
[20:23:13] <XXCoder> pink_vampire: look at left of video https://youtu.be/mreLx-t1HUA?t=405
[20:23:20] <djdelorie> that's - literally - what she said :-)
[20:23:28] <XXCoder> thats object that you can set rotation
[20:23:47] <XXCoder> later on (around 10:30) he uses it
[20:24:07] <XXCoder> ah mandel
[20:24:20] <Duc> probably a tool steel shaft I forget what some rods are
[20:24:53] <pink_vampire> it hard like a ball bearing
[20:25:26] <pink_vampire> hacksaw don't even leave a mark on it.
[20:25:48] <XXCoder> heh sounds like tool steel
[20:25:50] <XXCoder> very hard
[20:25:51] <pink_vampire> only the fiber disk on the dremel cut it.
[20:26:28] <Duc> could be A2 or d2 shaft
[20:26:30] <pink_vampire> and the finish on it is like mirror
[20:26:39] <Duc> Probably not S7
[20:26:41] <XXCoder> cant be chrome lol
[20:26:49] <XXCoder> that'd be expensive
[20:27:08] <pink_vampire> maybe chrome plated?
[20:28:07] <Duc> Mcmaster has motion shafts out of steel 1566 that are R.C. 60 which is as hard as a wood pecker
[20:28:07] <XXCoder> maybe do basic test
[20:28:09] <XXCoder> magnet
[20:28:29] <pink_vampire> ok
[20:28:44] <XXCoder> that'll tell if its one of iron based metals or nickel or whatever
[20:28:52] <djdelorie> the ebay listing said RC58, that's pretty hard, and if it's fine ground you'd get a shiny surface even with steel
[20:29:00] <pink_vampire> is a bit magnetic
[20:29:19] <XXCoder> odd
[20:29:51] <pink_vampire> it stick to the magnet but not hard
[20:30:35] <XXCoder> well Duc any idea? heh
[20:31:01] <pink_vampire> maybe something with nickel?
[20:31:07] <Duc> its odd I dont think SS comes that hard
[20:31:38] <Duc> seen some Stainless at 42 RC but 58-62 is dam hard for steels
[20:31:40] <XXCoder> tungsein lol kidding, that'd be pretty heavy
[20:32:04] <Duc> or carbide but that would be a gold mine
[20:32:47] <pink_vampire> I need to solder it
[20:33:12] <djdelorie> some woodturning tools are up at RC63 or so, but those are special alloys
[20:33:26] <Duc> silver solder or regular?
[20:33:28] <djdelorie> and they're not cheap
[20:34:07] <pink_vampire> regular
[20:34:25] <Duc> not sure that will work
[20:34:50] <XXCoder> I always wanted a tungsein ingot in shape of typical movie one
[20:34:53] <Duc> epoxy instead?
[20:34:59] <pink_vampire> I did a test on the side that I cut, without flux it not work, but with flux is was very good!
[20:35:07] <XXCoder> to show people how impossible some of movie stuff is
[20:35:47] <Duc> never seen a movie with a tungsten ingot
[20:35:54] <pink_vampire> me too
[20:35:56] <XXCoder> Duc: no but gold sure was
[20:36:04] <XXCoder> and tungsein has similiar density
[20:36:11] <Duc> ah
[20:37:16] <Duc> my rotary is pissing me off
[20:37:29] <Duc> stepper motors would have been a shit ton easier
[20:49:37] <Duc> so what are you solder this rod too?
[21:29:02] <pink_vampire> http://www.diytrade.com/china/pd/10018732/Graphite_screw.html
[21:35:43] <Duc> wonder if they cut that screw dry
[21:37:06] <gregcnc_> you bought a 52100 steel shaft and want to machine it?
[21:39:52] <pink_vampire> yes
[21:40:07] <pink_vampire> what do you think about this machine?
[21:40:09] <pink_vampire> https://www.youtube.com/watch?v=5edSib6huuY
[21:40:30] <gregcnc_> if stainless it may be 440C
[21:40:44] <XXCoder> gregcnc_: magnet weakly sticks to it
[21:40:49] <XXCoder> which is quite odd
[21:40:52] <pink_vampire> https://www.youtube.com/watch?v=MCwKsSMqkfw
[21:40:59] <gregcnc_> either way forget machining
[21:41:02] <pink_vampire> same machine
[21:41:42] <gregcnc_> maybe turning with CBN
[21:41:55] <gregcnc_> otherwise have it ground
[21:43:21] <XXCoder> wonder how strong graphite is
[21:43:50] <XXCoder> that is nice
[21:43:53] <pink_vampire> very soft
[21:44:02] <pink_vampire> but fragile,
[21:44:12] <XXCoder> its great for molding apparently
[21:44:15] <pink_vampire> and act like a lubricant
[21:44:26] <XXCoder> I wonder if it can be reformed into block again
[21:45:00] <gregcnc_> you cut graphite to use as electrodes to EDM molds
[21:45:54] <XXCoder> how do they make graphite blocks anyway
[21:48:42] <pink_vampire> press graphite powder
[21:48:56] <XXCoder> heh that means its basically renewable mold
[21:49:01] <XXCoder> keep graphite "chips
[21:49:04] <unfy> graphite's used in metal melting crucibles etc
[21:49:07] <XXCoder> then press em again
[21:49:25] <unfy> it's temperature tolerant, and it can be used as electrodes for high voltage melting stuff too etc
[21:49:40] <pink_vampire> I think it's mix with wax or something like that
[21:49:47] <unfy> i dunno how it degardes over time or if it's re-usable etc
[21:49:53] <pink_vampire> and then it get baked
[21:50:16] <gregcnc_> pretty complicated it seems https://www.mersen.com/en/focus/article/manufacturing-artificial-graphite.html
[21:51:04] <XXCoder> ow guess just pressing or someting is out
[21:51:13] <unfy> annnnnnnnnnnd... i'm fucked. was gonna grab some plywood from hardware store and take it home tonight to cut up tomorrow for air compressor box... but...too late now ._.
[21:51:33] <unfy> anyway, heading home. to quote deejay, gn8 o/
[21:51:40] <XXCoder> heh later
[21:52:41] <pink_vampire> I'm starving
[21:52:48] <XXCoder> what kind of jack (pointed out as "tv" http://g01.a.alicdn.com/kf/HTB1hrIKKpXXXXaXaXXXq6xXFXXXD/222325154/HTB1hrIKKpXXXXaXaXXXq6xXFXXXD.jpg
[21:53:19] <pink_vampire> regular tv rf antenna
[21:53:51] <pink_vampire> https://en.wikipedia.org/wiki/TV_aerial_plug
[21:53:55] <pink_vampire> XXCoder: ^
[21:54:06] <XXCoder> interesting
[21:54:12] <XXCoder> its listed as "compsite"
[21:54:21] <XXCoder> finally found it in list
[21:54:31] <XXCoder> Composite A/V
[21:54:54] <pink_vampire> it's not compsite
[21:55:01] <XXCoder> yeah just figured that
[21:55:08] <XXCoder> its one near light
[21:55:40] <XXCoder> not bad actually, that wya I dont need second vcr to convert coax back to composite after captioning
[21:56:33] <XXCoder> $80 lcd projector not bad
[21:57:15] <XXCoder> http://www.aliexpress.com/item/CHEERLUX-C6-Mini-LED-LCD-Projector-800x480-Pixels-1200-Lumens-Home-Theater-HDMI-USB-VGA-AV/32538739201.html
[21:57:22] <XXCoder> only flaw is its noisy
[21:57:32] <XXCoder> http://www.hekalog.de/hacks-en/silencing-a-cheap-projector/ mod to make it quiet
[21:57:38] <XXCoder> I dont plan on that because me deefy
[21:57:59] <pink_vampire> that look like junk
[21:58:07] <XXCoder> it is
[21:58:16] <XXCoder> but it works good enough really
[21:58:47] <XXCoder> pink_vampire: I currently has eyeclops which has 320x240 resolution, and 50 lumen lol
[21:58:52] <XXCoder> that one'd be massive upgrade
[21:59:12] <pink_vampire> what is eyeclops ?
[21:59:20] <XXCoder> its a toy projector
[21:59:26] <pink_vampire> omg
[21:59:47] <XXCoder> http://ecx.images-amazon.com/images/I/41VBTkKfe8L._SX466_.jpg
[21:59:57] <XXCoder> I bought it years ago
[22:00:05] <pink_vampire> http://www.samsung.com/us/video/tvs/UN55JU6700FXZA
[22:00:08] <XXCoder> 2010? its been used a lot watching tv shows so on
[22:00:11] <pink_vampire> i have ^
[22:00:28] <XXCoder> yeah $800 more than my budget for tv lol
[22:00:34] <XXCoder> I dont need much money.
[22:00:57] <pink_vampire> for 200$ you can get FHD
[22:01:07] <XXCoder> I dont want a tv, a projector heh
[22:01:40] <pink_vampire> http://www.walmart.com/ip/Haier-49E4500-49-1080p-60Hz-LED-Smart-HDTV/50576585
[22:01:48] <XXCoder> I will never buy from walmart.
[22:02:08] <pink_vampire> why?
[22:02:53] <XXCoder> they treat workers very badly
[22:05:05] <pink_vampire> I know few walmart worker and they very happy.
[22:06:02] <pink_vampire> it's the best 24/7 store
[22:06:44] <XXCoder> it may be unique to your location
[22:10:35] <pink_vampire> do you know about a hardware store that open 24/7?
[22:10:47] <XXCoder> heh that is very rare
[22:11:00] <XXCoder> if such exists at all
[22:11:24] <pink_vampire> fiber glass at 2 am..
[22:15:58] <pink_vampire> http://www.amazon.com/Samsung-UN85S9-Framed-85-Inch-Ultra/dp/B00CMEN95U/ref=sr_1_2?s=tv&ie=UTF8&qid=1460774863&sr=1-2&keywords=tv&refinements=p_n_feature_keywords_three_browse-bin%3A7688788011|7688789011%2Cp_n_size_browse-bin%3A3578043011
[22:16:54] <XXCoder> one restiff up for $36k lol
[22:17:02] <XXCoder> so cheap. I rather buy enw car though lol
[22:17:04] <XXCoder> *new
[22:18:04] <pink_vampire> read the comments.
[22:18:15] <XXCoder> ok
[22:19:23] <XXCoder> lol
[22:21:28] <pink_vampire> Question: If I buy this TV will I still be able to pay my cable bill? Answer: No, but if you sell your children into slavery you will!
[22:22:15] <XXCoder> HMM no childen to support, more time to watch tv, no worries about funding children college
[22:22:19] <XXCoder> win win win! ;)
[22:26:40] <XXCoder> https://hackaday.io/project/10573/gallery#b3c76707ba2dc898b48acdb7c7984fcb
[22:26:44] <XXCoder> that is awesome
[22:27:27] <XXCoder> project https://hackaday.io/project/10573-tide-clock-in-micropython
[22:30:11] <jdh> I have 13 months of kid-college left
[22:33:10] <XXCoder> geeez
[22:33:26] <XXCoder> someone figured how to record 3d printer sounds and recreate 3d model on that
[22:40:30] <pink_vampire> I flat the stock
[22:40:55] <pink_vampire> worrrrrrrrk ok
[22:41:49] <pink_vampire> it make A LOT of smoke without any oil!
[22:42:29] <pink_vampire> XXCoder: ^
[22:42:36] <XXCoder> heh
[22:42:51] <XXCoder> yeah need coolant for cutting such a hard metal
[22:42:59] <XXCoder> assuming you was milling that rod
[22:43:37] <pink_vampire> it's not the O2 steel that I've used for the V block
[22:43:44] <pink_vampire> it's something else
[22:43:53] <pink_vampire> much harder
[22:44:17] <XXCoder> wish there was easier way to sort what metal it is
[22:45:01] <pink_vampire> how in the factory they test it?
[22:45:14] <XXCoder> chemistry im sure
[22:45:30] <XXCoder> few methods. I'm no metallogist so dunno
[22:45:44] <pink_vampire> I know that they take a sample from the molten metal
[22:46:04] <XXCoder> im sure theres methods besides that lemme google
[22:46:21] <XXCoder> http://www.apmtesting.com/testing-services/materials-tested/metal-testing.php
[22:48:26] <pink_vampire> http://www.leco.com/products/analytical-sciences/glow-discharge-atomic-emission-spectroscopy/gds850
[22:49:20] <XXCoder> fancy.
[22:49:42] <pink_vampire> so this is what I need to get..
[22:50:20] <XXCoder> probably litte bit nehind your means
[22:50:20] <pink_vampire> you get the metal for free, and test it on your "Glow Discharge Atomic Emission Spectrometer"
[22:50:24] <XXCoder> unless you really is rich
[22:50:31] <XXCoder> or your parents or uncle
[22:50:53] <pink_vampire> I'm not rich :(
[22:51:15] <XXCoder> too bad, planned to ask if can give me a million or 2 lol joking
[22:51:27] <pink_vampire> no way
[22:51:29] <pink_vampire> http://www.publicsurplus.com/sms/auction/view?auc=668613
[22:51:48] <XXCoder> goverment surplus tend to be low priced
[22:52:05] <XXCoder> probably add another zero to that price for new
[22:52:11] <XXCoder> or 2 or 3
[22:53:10] <pink_vampire> :(
[22:53:32] <XXCoder> yeah its worth it if you need to identify LOTs of metal
[22:53:37] <XXCoder> but out of range for home
[22:54:51] <pink_vampire> I just think it's cool to have..
[23:22:34] <XXCoder> heh there is many stuff I think is cool that i cant have
[23:26:23] <evil_ren> like ferrari dino 246gt
[23:26:38] <evil_ren> and lamborghini muira
[23:26:46] <evil_ren> and porsche 550
[23:28:43] <pink_vampire> and any car that you can paint in pink for me :)
[23:29:03] <XXCoder> junkyard car + cheap paint.. $20,000 for you ;)
[23:29:15] <XXCoder> no, I dont know why ladies stuff usually has higher price.
[23:34:08] <pink_vampire> me too
[23:41:46] <Jymmm> http://cdn.pinthiscars.com/images/honda-s2000-fast-and-furious-wallpaper-1.jpg
[23:43:29] <Jymmm> https://www.youtube.com/watch?v=BPBX4YlGoxw
[23:47:39] <pink_vampire> Jymmm: CUTE!
[23:51:36] <pink_vampire> I'm not sure how much to take with the cutter?
[23:52:25] <pink_vampire> carbide 1/8" 4F end mill.
[23:53:04] <pink_vampire> any idea?
[23:53:50] <XXCoder> with unknown metal its hard to say
[23:54:45] <pink_vampire> if it was SS
[23:54:52] <pink_vampire> 45hrc..
[23:55:14] <XXCoder> probably reasonable to assume its quite hard metal
[23:55:21] <XXCoder> ss is close enough maybe? dunno
[23:56:18] <pink_vampire> I have 10 feet of it...
[23:56:32] <pink_vampire> and I need 3.5mm
[23:56:52] <pink_vampire> but I don't have a lot of end mills
[23:57:15] <pink_vampire> 0.1mm deep and 0.1mm side?
[23:57:30] <pink_vampire> 50mm/min feed rate?
[23:58:48] <XXCoder> unfortunately I dont know enough about feed rates
[23:59:01] <XXCoder> maybe set to that speed
[23:59:08] <XXCoder> but set low % of feed rate
[23:59:17] <XXCoder> then increase till cutting sounds is decent