#linuxcnc | Logs for 2015-06-19

[00:07:16] <tiwake> it was complaining about the servo, yeah
[00:07:22] <tiwake> pretty sure it was just dusty
[00:07:27] <tiwake> at least thats what I'm hoping
[00:07:44] <tiwake> its a really nice one from what I can tell... its a glass disk
[00:13:48] <tiwake> meh, I just want to go home
[00:22:52] <tiwake> less problem
[00:23:00] <tiwake> but still encoder problem
[00:23:48] <tiwake> it seems to want to error out from encoder when its either going too fast or accelerating too much
[00:24:03] <tiwake> it might be slipping slightly... I'll make sure its tight
[00:24:29] <CaptHindsight> http://www.bidspotter.com/en-us/auction-catalogues/ppl-auction/catalogue-id-bscpp10101/lot-a910e0d9-0b31-4ce7-9970-a4b901150357 made in 1919
[00:27:36] <tiwake> woo happy dance
[00:27:54] <tiwake> much happy dance
[00:28:02] <tiwake> my mill is finally running
[00:43:25] <tiwake> been here 13 hours, I'm going home
[02:14:01] <Deejay> moin
[02:37:55] <zeeshan|2> tiwake: http://i.imgur.com/4BRwDhS.jpg
[02:38:00] <zeeshan|2> http://i.imgur.com/1XY4GeY.jpg
[02:38:01] <zeeshan|2> :D
[02:38:25] <tiwake> zeeshan|2: did that work very well then?
[02:38:47] <tiwake> for whatever he wants
[02:38:53] <zeeshan|2> yes
[02:38:56] <zeeshan|2> its nice and rough
[02:38:58] <tiwake> nice
[02:38:59] <zeeshan|2> grippy
[02:39:03] <tiwake> and fast to make
[02:39:10] <zeeshan|2> yes
[02:39:14] <zeeshan|2> no running a damn ball nose
[02:39:53] <tiwake> oh, grippy is the only thing he wanted?
[02:39:57] <zeeshan|2> yea
[02:40:03] <zeeshan|2> couldnt coat it
[02:40:08] <zeeshan|2> or put something on it, he wanted pure aluminum
[02:40:14] <zeeshan|2> goes well with his sculpture
[02:40:25] <tiwake> sandblast I guess is another option
[02:40:28] <tiwake> beadblast
[02:40:32] <tiwake> w/e
[02:40:43] <zeeshan|2> thats true
[02:40:56] <tiwake> oh well, its done
[02:41:05] <zeeshan|2> flycutter is quicker :P
[02:41:09] <tiwake> with probably about the same amount of effort
[02:41:13] <zeeshan|2> less
[02:41:20] <Valen> much less
[02:41:23] <zeeshan|2> it took literally 15 seecond pass
[02:41:24] <zeeshan|2> to do that
[02:41:39] <Valen> you need a good bit of surface prep before you get an even finish on a sandblast
[02:42:09] <tiwake> why?
[02:42:14] <zeeshan|2> if i could use a 20" fly cutter
[02:42:22] <zeeshan|2> i bet i could get a straight knurl
[02:42:23] <zeeshan|2> lol
[02:43:51] <zeeshan|2> i sold my sand blaster a couple months ago
[02:43:53] <zeeshan|2> i never used it
[02:43:58] <zeeshan|2> =/
[02:44:05] <zeeshan|2> was taking a lot of shop space
[02:44:13] <tiwake> hmm
[02:44:27] <tiwake> w/e, I'm going to bed
[02:44:30] <zeeshan|2> gnite! :P
[02:44:36] <zeeshan|2> its late. 3:30am almost
[02:44:54] <tiwake> quite popped from crawling all over the mill trying to get it working
[02:45:31] <tiwake> tomorrow I get to put the covers back on
[02:45:44] <tiwake> thats going to take most of the day
[02:46:03] <zeeshan|2> good luck! :D
[02:46:24] <tiwake> luck is for people who don't understand systems :)
[02:47:53] <Valen> tiwake: the reason is sand blasting doesn't alter the average surface height
[02:48:15] <Valen> so if you sandblasted zeeshan|2's piece there you would probably still see the fly cutter mark
[02:48:31] <tiwake> Valen: beadblast?
[02:48:43] <Valen> depends, it'll hide more of course
[02:49:27] <tiwake> it would still average the same, sure, but peaks and valleys is all thats desired
[02:50:08] <Valen> that's what I mean, it'll hide more stuff depending on the size of your beads etc
[02:51:23] <tiwake> anyway, sleep
[05:30:14] <XXCoder> zeeshan|2: hey still up? lol
[07:13:27] <MattyMatt> anone used both 3M scotchbrite and Mirka Mirlon ripoffs? Is it worth paying double for 3M?
[07:15:50] <XXCoder> good question
[07:16:05] <MattyMatt> 3M sandpaper is noticably better than ordinary, I gotta admit, but I consider that a luxury
[07:16:16] <XXCoder> might be good idea to test em I guess, assuming you can buy all of em to test
[07:16:22] <XXCoder> hows ya
[07:16:54] <JSSKangas> Hello
[07:17:15] <MattyMatt> I guess I should start with 3M mixed pack first, so my baseline is the known good stuff
[07:17:24] <JSSKangas> I have finally got kinematics ready for 5-axis table-table machine
[07:17:57] <JSSKangas> it rotates coordinate along part placed on table
[07:18:47] <JSSKangas> math I tested in NX CSE simulation, now I would need saome help to implement it in linuxcnc
[07:19:17] <JSSKangas> mostly cause, im not familiar with linux enviroment.
[07:20:04] <JSSKangas> I can write C code, but i have no experience how to compile this .c file in linuxcnc
[07:20:19] <JSSKangas> Could anyone help
[07:20:21] <JSSKangas> ?
[07:21:16] <XXCoder> c code you could just make a make file
[07:21:22] <XXCoder> then make (name)
[07:21:47] <XXCoder> assuming you want program to be result. not too sure on library or plugs so on
[07:22:25] <JSSKangas> ok but lets start from basics... where to I but file I want to compile? desktop?
[07:22:55] <JSSKangas> result of compiling this file is?
[07:23:08] <JSSKangas> really from basics
[07:23:15] <XXCoder> Sorry, going to bed, its 5 am lol
[07:23:20] <XXCoder> usually sleep at 3:30 am
[07:23:24] <XXCoder> night
[07:23:35] <JSSKangas> i have done lot of C coding but sadly not in linux
[07:23:41] <JSSKangas> heh
[07:25:48] <XXCoder> its not really all that different
[07:25:58] <XXCoder> anyway going later
[07:30:28] * MattyMatt just spent as much on a roll of real scotchbrite as on the homemade vice I want to clean
[07:32:44] <MattyMatt> http://www.ebay.co.uk/itm/111655872405 not half bad, IMO. I'll mill the sides fully square and a slot for toe clamps
[07:35:05] <MattyMatt> JSSKangas, the usual routine is, in the root directory of the project, type make and it'll use the Makefile there
[07:35:30] <MattyMatt> make or gmake, depending on age and flavour of linux
[07:35:58] <JSSKangas> ok im ysing ubuntu 10.04 and linuxcnc 2.5.0
[07:36:15] <MattyMatt> is there a readme with build instructions?
[07:36:34] <JSSKangas> i know it old but at moment i dont want yet to update newer
[07:36:50] <JSSKangas> wait a sec
[07:38:06] <JSSKangas> ok, Im not too familiar yet with linux cnc it has been over 10 years from last time i did some modifications to it
[07:38:09] * MattyMatt runs 2.4 on 10.04, installed straight off the old live CD
[07:38:50] <JSSKangas> where would i need to look those readme
[07:39:26] <MattyMatt> in the base directory of the source download, I guess
[07:40:19] <JSSKangas> ok does it come along with livecd setup
[07:40:21] <JSSKangas> ?
[07:40:36] <MattyMatt> not afaik
[07:40:48] <MattyMatt> it's on the wiki too I'm sure
[07:43:12] <JSSKangas> if you have time, could you explain how to start compiling simple C file to linuxcnc to person who have newer even heard about linux
[07:44:09] <JSSKangas> do I need sources from linuxcnc to compile new kinematic model to it?
[07:45:20] <MattyMatt> quite likely. there's gonna be headers for the interface, at the very least
[07:45:43] <archivist> JSSKangas, yes get the source/dev version
[07:46:03] <JSSKangas> ok, then how to get it in this old version
[07:46:05] <JSSKangas> ?
[07:46:10] <archivist> then understand how the kins are used in linuxcnc
[07:46:55] <JSSKangas> I will publish this 5-axis kinematics under GPL
[07:47:34] <lair82> PCW pcw_home, you around?
[07:47:39] <JSSKangas> well I work in machinetool business, my main job is to build kinematics models
[07:48:06] <archivist> see how they are used in http://linuxcnc.org/docs/html/man/man9/kins.9.html
[07:48:31] <archivist> just add yours
[07:48:34] <JSSKangas> done that and HAL is really familiar to me
[07:49:01] <JSSKangas> yes and that is the problem how to add mine
[07:49:17] <JSSKangas> there my experience ends
[07:49:19] <archivist> similar possibly http://wiki.linuxcnc.org/cgi-bin/wiki.pl?ContributedComponents#XYZACkins_5_axis_kinematics_for_a_milling_machine
[07:50:20] <archivist> that should already be there and usable so you can compare use
[07:54:44] <JSSKangas> ok
[07:54:56] <JSSKangas> tranformations seemsto be fine
[07:55:42] <JSSKangas> I just need litle different
[07:55:47] <JSSKangas> BC axis machine
[07:57:49] <JSSKangas> Thanks archivist
[07:58:10] <MattyMatt> https://www.youtube.com/watch?v=lAr5_idJbFY lovely old film
[07:58:50] <JSSKangas> there was compiling instructions as well. with these I will get along.
[08:02:11] <JSSKangas> If some one is interested where could I upload C file for BC table-table kinematics
[08:03:57] <archivist> you should perhaps join the -dev mailing list and the #linuxcnc-devel irc channel where the devs can take patches and additions
[08:16:11] <archivist> JSSKangas, best to stay in channel not pm
[08:30:44] <JSSKangas> Ok, previously I have had no need for TCP control in linuxcnc. But now I need to make some impellers
[08:31:55] <JSSKangas> where i need 5-axis simultaneous movements
[08:33:37] <JSSKangas> Here are some of my projects: www.picasaweb.google.com/jsskangas
[08:39:34] <pcw_home> lair82: am now
[08:45:01] <lair82> I was wondering waht kind of range do i need to stay within on the 1 VAC for the resolver feedback, I have 1.008 VAC RMS on my Z axis with a 220Ohm resistor inserted, and .988 VAC on my Y axis?
[08:46:06] <lair82> And 1.01 on my X axis.
[08:51:53] <MattyMatt> JSSKangas, https://www.youtube.com/watch?v=3BMjwQSDb4g is this done without kinematics, with B&C movements edited into 3 axis gcode?
[08:52:53] <lair82> pcw_home I had all 220ohm resistors in, I series 2 100's for the Y and got that up to 1.014
[08:53:06] <MattyMatt> oh no, I got to the end of the vid, where it all goes full 5 axis
[08:58:41] <MattyMatt> that NX9 simulator needs aewallin's voxel code for the part, that z buffer noise looks horrible
[09:00:24] <MattyMatt> https://www.youtube.com/watch?v=Of3Hdgf0p2c
[09:06:59] <skunkworks> zlog
[09:24:15] <lair82> pcw_home here is current halscope of the x axis, http://postimg.org/image/79geyyqbp/
[09:37:58] <pcw_home> better but Probably need more resistance
[09:41:34] <JSSKangas> MattyMatt: yes that video was without tcp, mainly just indexing.
[09:42:39] <JSSKangas> at end of the video there are simultaneous 5-axis movements, yes, but machine does not move correctly.
[09:43:43] <JSSKangas> I have made LinuxCNC postprosessor and machinetool simulation models for Siemens NX
[09:44:09] <MattyMatt> I do my sim in blender :)
[09:44:13] <zeeshan|2> JSSKangas: nice
[09:44:22] <zeeshan|2> i made one of the lathe for nx
[09:45:11] <JSSKangas> it has all needed functions, I think I will publish it in LinuxCNC site some day
[09:45:21] <MattyMatt> I've done my lathe in blender
[09:45:32] <JSSKangas> what is blender
[09:45:36] <JSSKangas> ?
[09:45:52] <zeeshan|2> i need to finsih one for mastercam
[09:45:59] <zeeshan|2> like it's fu nctional for what im doing
[09:46:05] <zeeshan|2> but theres a couple things it still does wrong that i gotta fix
[09:46:14] <JSSKangas> zeeshan: you need NX
[09:46:18] <JSSKangas> ;)
[09:46:24] <MattyMatt> a free 3d editor. not meant for cad, but powerful
[09:46:30] <zeeshan|2> JSSKangas: i have nx
[09:46:36] <JSSKangas> use it
[09:46:40] <zeeshan|2> i perfer mastercam for solidworks
[09:46:46] <zeeshan|2> its way may user friendly
[09:46:53] <zeeshan|2> i used nx for school
[09:46:56] <zeeshan|2> its what they mostly use
[09:47:02] <zeeshan|2> *use
[09:47:16] <JSSKangas> ahh ok where?
[09:47:28] <JSSKangas> USA
[09:47:29] <JSSKangas> ?
[09:47:32] <zeeshan|2> canada
[09:47:54] <JSSKangas> did you like nx cam?
[09:48:05] <zeeshan|2> its okay
[09:48:25] <zeeshan|2> i feel like it's way too much work to get a simple job setup in it..
[09:48:34] <zeeshan|2> (i only experienced lathe on it)
[09:49:07] <JSSKangas> well when you get use it, its not so bad anymore
[09:49:31] <JSSKangas> i have done really complex parts with it
[09:49:48] <JSSKangas> I like most about it, cause its cad like cam
[09:50:07] <zeeshan|2> yes, one package
[09:50:21] <zeeshan|2> whereas all trhese other software are addons to some other cad software
[09:50:27] <JSSKangas> all assemby and modelling functions
[09:50:29] <zeeshan|2> to get parametric
[09:52:33] <MattyMatt> that's all blender lacks really, persistent parametric objects
[09:52:44] <ssi> I got my scope lasternight
[09:52:46] <ssi> it's pretty awesome
[09:53:24] <zeeshan|2> nice
[09:53:24] <_methods> scope?
[09:53:29] <_methods> oscope
[09:53:30] <zeeshan|2> hack it!
[09:53:34] <ssi> already haxd
[09:53:38] <zeeshan|2> haha
[09:53:41] <zeeshan|2> nice
[09:53:45] <_methods> 1054z?
[09:53:47] <ssi> yup
[09:53:54] <ssi> it's absolutely worth the money
[09:53:54] <zeeshan|2> how many probes did you get with it
[09:54:02] <ssi> four
[09:54:07] <zeeshan|2> whatt ype
[09:54:16] <ssi> rigol 2200 probes, 150MHz 10x
[09:54:51] <zeeshan|2> ssi so if you wanted to measure 3 phase motor voltage
[09:54:53] <zeeshan|2> or current
[09:54:56] <zeeshan|2> how would you hook up that probe
[09:54:59] * zeeshan|2 is cluless :P
[09:55:06] <ssi> voltage would be easy
[09:55:08] <ssi> current is a bit tougher
[09:55:14] <ssi> need current probes for that
[09:55:27] <zeeshan|2> so for voltage
[09:55:32] <zeeshan|2> would you probe directly in to the wire of interest?
[09:55:34] <zeeshan|2> (phase)
[09:55:38] <zeeshan|2> not wire
[09:55:45] <ssi> yeah, bearing in mind your reference potentials
[09:56:05] <archivist> trigger off one and scope all three
[09:56:11] <ssi> yep
[09:56:13] <ssi> easy peasy
[09:56:26] <zeeshan|2> wtf is reference potential
[09:56:29] <zeeshan|2> that sounds like ground
[09:56:31] <zeeshan|2> earth
[09:56:33] <ssi> on this scope you can literally just clip three probes to the three phases and hit "auto" and it'll give you a nice picture
[09:56:41] <ssi> yes ground
[09:56:49] <ssi> the important thing to remember is scope ground is mains ground
[09:57:03] <zeeshan|2> what else would it be?
[09:57:03] <zeeshan|2> :P
[09:57:04] <ssi> and your 3ph probably is mains referenced as well
[09:57:11] <zeeshan|2> yes
[09:57:17] <ssi> so if you try to clip your ground clip on the probe to something that's not at ground, you might blow something up
[09:57:21] <archivist> unless one hacks ones mains cable/plug :)
[09:57:24] <MattyMatt> do VFD have a neutral output to use for stuff like that?
[09:57:39] <ssi> not a neutral, but they do have a grounp
[09:57:56] <zeeshan|2> ssi: ahh
[09:57:59] <zeeshan|2> so make sure ground goes to ground
[09:58:00] <zeeshan|2> gotcha
[09:58:01] <zeeshan|2> :P
[09:58:03] <archivist> always assume dangerous voltages, and not your scope and probes maximum voltage
[09:58:14] <archivist> not/note
[09:58:15] <ssi> s/not/note/
[09:58:16] <ssi> heheh
[09:58:44] <zeeshan|2> man if i wasnt gone for a 4 day vacation
[09:58:48] <zeeshan|2> i could buy this scope
[09:58:51] * zeeshan|2 gives up on vacation
[09:58:51] <zeeshan|2> :D
[09:59:03] <ssi> vacations are for lazy people :D
[09:59:09] <MattyMatt> more good advice. don't go shoving your nice new scope into random HT
[09:59:20] <zeeshan|2> ht?
[09:59:30] <archivist> high tension
[09:59:35] <_methods> poof
[09:59:42] <archivist> lotsa volts
[09:59:48] <MattyMatt> high tension, the stuff that magic smoke is made of
[09:59:56] <zeeshan|2> whats high voltage?
[09:59:57] <zeeshan|2> 600V?
[09:59:59] <zeeshan|2> 3290213908120839 v
[10:00:14] <malcom2073> 1 BILLION volts *pinky to mouth*
[10:00:18] <archivist> HT used to be 200+ in the valve/tube days
[10:00:45] <ssi> I wonder if I Should have spent the extra $400 and gotten the MSO version
[10:01:25] <zeeshan|2> arent those like 14000$
[10:01:27] <zeeshan|2> not 400 bux more
[10:01:42] <ssi> some of them are :P
[10:02:14] <ssi> the 1000Z series is the same hardware across the line
[10:02:23] <ssi> the DS models don't have the logic analyzer parts populated
[10:02:45] <ssi> DS1054Z is 50MHz scope only for $400, the MSO1074Z is 70MHz mixed signal scope for $830
[10:02:49] <ssi> same box, same hackability
[10:03:15] <_methods> heheh buyers remorse
[10:03:25] <_methods> damn you feature creep
[10:03:29] <ssi> :)
[10:03:35] <zeeshan|2> sell me your scope
[10:03:36] <zeeshan|2> for half price
[10:03:41] <zeeshan|2> :-)
[10:03:49] * archivist hides his scopes
[10:03:49] <zeeshan|2> you need the mso!
[10:04:26] <archivist> I could have dragged another home yesterday
[10:04:37] <archivist> tek 575 iirc
[10:04:56] <zeeshan|2> DIGITAL BABY
[10:05:32] <archivist> sod digital for some jobs
[10:06:24] <archivist> I haz 8 channels digital for when needed :)
[10:06:30] <Rab> archivist, I used one of those not too long ago to match power transistors for an audio amp. Still useful because it can supply more current than a lot of standalone tracers like my Leader.
[10:06:32] <lair82_> pcw_home, what would an ideal voltage be going into the 7i49 on the sine/cosine inputs?
[10:07:07] <archivist> Rab, I got the number wrong it was a scope I saw not the transistor tracer
[10:07:13] <Rab> archivist, ahh
[10:07:30] <Rab> archivist, dual-beam scope? 555 or similar?
[10:07:34] <pcw_home> around 1V but not over (and im not sure if your DVM is accurate at 2.5 KHz)
[10:07:53] <archivist> Rab, yes with plugins
[10:08:32] <Rab> archivist, dual 1A4s? ;)
[10:09:18] <archivist> to see the number would have meant bending down, and looking interested :)
[10:09:38] <archivist> if you want it I can go and ahsk
[10:09:55] <Rab> archivist, I think we're on different continents.
[10:10:23] <archivist> UK here
[10:10:33] <Rab> Texas
[10:10:53] <renesis> i dont think you guys are allowed to get along anymore
[10:11:22] <Rab> It's OK, his people fought the yankees too.
[10:11:39] <malcom2073> lol
[10:11:53] <renesis> newjob doesnt even have a real scope, just this chinatech PC scope with labview'd teletubby gui
[10:11:58] <_methods> they also share that bestiality bond
[10:12:04] <_methods> sheep/steers
[10:12:07] <_methods> lol
[10:12:08] <Rab> I took apart a 555, between the PSU and the main unit it had 70 tubes.
[10:12:34] <Rab> 556 probably has more. Here's one set up for 8 channels, brutal: http://www.barrytech.com/tektronix/vintage/tek556.jpg
[10:12:38] <renesis> thats like 65 more tubes than mine
[10:13:03] <renesis> that looks way sexier than mine
[10:13:46] <archivist> I have an anteeeeeq tek 661 with a 3ghz plugin
[10:14:54] <archivist> http://w140.com/tekwiki/wiki/661
[10:15:56] <lair82_> pcw_home, for all the more I would use it, would something like this http://www.ebay.com/itm/SainSmart-DDS120-Pro-20MHz-PC-Based-USB-Digital-Storage-Portable-Oscilloscope-/300992154516?pt=LH_DefaultDomain_0&hash=item461487cb94 be ok to use for these applications, or just a waste of money?
[10:17:29] <Rab> lair82_, don't be fooled by the 20MHz bandwidth claim. That's the analog front end. Sample rate is 50MS/s, which means it's basically only useful up to 5MHz.
[10:18:20] <lair82_> So something along these lines? http://www.ebay.com/itm/Fluke-123-Industrial-ScopeMeter-Hand-Held-Oscilloscope-/381293578970?pt=LH_DefaultDomain_0&hash=item58c6de4ada
[10:19:14] <archivist> you also often need a sensible sample depth for diagnosis
[10:19:34] <pcw_home> 5 MHz is probably fine for CNC electronics work
[10:20:33] <Rab> Haha, Fluke 123 is even worse: 25 MS/s. They claim "equivalent sampling rate up to 1.25 GS/s", I guess that's on repetitive signals.
[10:20:38] <pcw_home> usable software for the PC side is probably more important
[10:20:49] <archivist> taking a long sample and catching the glitches is where all the toy scopes fail
[10:21:04] <lair82_> I just saw that about the 25 MS/s
[10:21:53] <Rab> lair82_, you should identify your use cases. 5MHz might be just fine.
[10:22:48] <lair82_> Troubleshooting these cnc's is about the only thing I will ever use it for,
[10:23:27] <lair82_> Like right now, trying to nail down exactly what my feedback voltage is going into my 7i49,
[10:24:21] <pcw_home> if you have 2 220 ohm resistors you can make a voltage divider
[10:25:01] <pcw_home> that should lower the peak to about .65 V which should be fine
[10:26:00] <lair82_> I have the 330's
[10:35:03] <SpeedEvil> ^Usable open-source software for the PC
[10:35:32] <SpeedEvil> Just usable software means you have it until the manufacturer stops making it often, and then the driver stops working.
[10:35:46] <SpeedEvil> Or will work only on a ten year old PC
[10:36:29] <tiwake> _methods: did you see I got the mill working last night?
[10:41:22] <_methods> no nice
[10:41:47] <_methods> last i saw you were having issues with the motor
[10:42:12] <_methods> what was it?
[11:08:12] <lair82_> I guess for along the same lines of dollar amount, this might be usable for my work, http://www.alliedelec.com/red-pitaya-red-pitaya-v1-0/70418439/#tab=overview
[11:08:48] <lair82_> Sample rate of 125 MS/s
[11:17:03] <tiwake> _methods: three problems, the motor, the encoder (was dusty), and the driver board
[11:17:26] <tiwake> all independent from eachother
[11:18:04] <tiwake> anyway, off to work I go to put covers back on
[11:20:59] <ssi> lair82_: if you're gonna spend $300, might as well spend $400 and get a proper scope
[11:21:16] <ssi> pc scopes suuuuuck
[11:22:15] <jdh> which $400 one
[11:22:26] <tjtr33> !wench fire
[11:22:42] <ssi> http://www.tequipment.net/Rigol/DS1054Z/Digital-Oscilloscopes/?v=0
[11:22:47] <ssi> best value in scopes hands down
[11:25:34] <_methods> says the guy with buyers remorse
[11:25:40] <ssi> I don't have buyers remorse
[11:25:43] <_methods> heheh
[11:26:02] <_methods> upgrade remorse
[11:26:20] <ssi> this is the one to have btw
[11:26:20] <ssi> http://www.tequipment.net/Rigol/MSO1074Z-S/Mixed-Signal-Oscilloscopes/?search=true
[11:26:28] <ssi> I just didn't want to spend $1k this week on a scope
[11:26:31] <ssi> eventually I probably will
[11:26:45] <ssi> and they haven't quite sorted out the hack on the MSO yet
[11:26:53] <_methods> yeah hard to drop the much cash on something you use so rarely
[11:27:25] <ssi> the DS1054Z is an unreal amount of scope for the money
[11:30:40] <_methods> yeah i need to pick one up.......among other things
[11:31:26] <_methods> compressor, generator, tig rig, and plasma are at the head of the line though
[11:31:45] <ssi> I have all of those things :P
[11:31:50] <ssi> although my generator is on the small side
[11:32:24] <_methods> i need to get one before hurricane season gets full blown
[11:32:37] <_methods> i've been livin on the edge for awhile now
[11:41:04] <ssi> heheh
[11:54:33] <Bushman> ave
[11:55:17] <Bushman> i have a hard time figuring out gear ratio in my gearbox for A axis...
[11:55:39] <Bushman> i need some tool that would turn the stepper given number of steps/revolutions
[11:55:52] <Bushman> the stepper motor is 100 steps/rev
[11:56:07] <archivist> juts multiply that number by the ratio
[11:56:30] <Bushman> archivist: please read my first message
[11:57:12] <Bushman> i don't remember what was that but i used a tool once that was counting steps
[11:57:15] <archivist> becomes obvious if you command one rev and it turns a 90th
[11:57:32] <Bushman> do you have any idea what tool does that in linuxcnc?
[11:57:44] <archivist> a lot of the common rotaries are 90-1
[11:57:54] <Bushman> oh... i don't know how to command it 1 rev
[11:58:15] <Bushman> it's not common. i took it from some old german machine
[11:58:42] <archivist> think of your stepper doing one rev multiply by the assumed ratio see if the result works
[11:58:50] <Bushman> i said german? umm.. i mean austrian
[11:58:55] <Bushman> remotly controlled light fixture from PANI Austria
[11:59:22] <Bushman> archivist: i did that. i get weird results any my brain is shutting down
[11:59:33] <Bushman> the whole thing is 2 stages
[12:00:01] <Bushman> this worm gear:
[12:00:02] <Bushman> http://i.imgur.com/c1RnNC6l.jpg
[12:00:02] <archivist> I usually draw a line on the face ant rotate the input until one output rev
[12:00:34] <Bushman> and this gearbox (it's already closed up and bolted down so i can't count the teeth):
[12:00:38] <Bushman> http://i.imgur.com/uaNAaPol.jpg
[12:00:42] <archivist> or dismember and count teeth
[12:01:20] <Bushman> well, i can fugure out the gear ratio if i will know how much steps i made
[12:01:36] <Bushman> so let's for now discuss my options in software
[12:01:59] <Bushman> stepconf is driving me nuts. i adjust the values but it's always off by some degree
[12:02:09] <archivist> measure then, another thing is put and encoder on the output and use an encoder hal comp to count is for you
[12:02:22] <Bushman> so i'd want to move it given number of steps, not degrees
[12:03:01] <Bushman> archivist: i don't want to build extra stuff
[12:03:11] <Bushman> i just want to find the real ratio.
[12:03:21] <malcom2073> Bushman: Set your steps per degree to say, 10. Then jog a full rotation, divide by 10, that's your steps per revolution
[12:03:21] <archivist> once running I forget stepconf, edit the ini is easier to put calculated numbers in
[12:03:48] <Bushman> for that i want to use something that lets me command/count steps, not other units
[12:04:02] <Bushman> i know i was using such thing but it was 2 years agao
[12:04:19] <Bushman> and i only play with it for few minutes and didn't really need it
[12:04:22] <malcom2073> erm, or rather divide by 3600
[12:04:28] <archivist> set the ini so the steps is directly sensible
[12:04:44] <malcom2073> to get actual steps per degree
[12:04:45] <Bushman> i need you guys to help me find the tool that is build into linuxcnc i was using!
[12:05:03] <malcom2073> Oh
[12:05:04] <archivist> I dont remeber seeing any tool
[12:05:06] <malcom2073> i don't know that one, sorry
[12:05:19] <Bushman> eh -_-'
[12:05:33] <archivist> I made my own, add an encoder to see what the rotary did
[12:07:09] <Bushman> well, i don't have encoders
[12:07:24] <Bushman> and i don't want to build extra hardware for this thing
[12:07:34] <archivist> my hobbing machine had unknowns so I just couples an encoder to the output, put the signals to the parport and used watched the counts in halshow
[12:07:37] <Bushman> it's already driven by a stepper motor.
[12:07:40] <malcom2073> Then your best bet may be to jog until you get a full rotation, and calculate steps fro mthat.
[12:07:50] <Bushman> as long as it doesn't loose steps it's ok
[12:08:17] <Bushman> jog! cool! but how do i know how much steps did it do? there was a tool for that!
[12:08:25] <malcom2073> Yes, a calculator :-P
[12:08:34] <Bushman> -_-
[12:08:42] <Bushman> malcom2073: har har...
[12:08:53] <Bushman> i'm talking about what the PC sent to the driver
[12:09:02] <archivist> it is trivial to use a marker pen and set a a start point and use halshow to see how many counts you used to do a rev
[12:09:23] <Bushman> halshow!
[12:09:36] <Bushman> thank you... AT LAST
[12:09:57] <archivist> it is a general tool not a specific one!
[12:45:05] <Bushman> archivist: i never said i want specific tool
[12:45:16] <Bushman> i said i want _some_ tool
[12:45:39] <Bushman> 1:1450
[12:46:03] <Bushman> is the ratio of my gearbox as a whole (both stages together)
[12:46:19] <archivist> you asked for a tool to actually turn and count :)
[12:47:03] <Bushman> ok, i might have expressed my thougths in a not completely exact way...
[12:47:09] <archivist> to me that is a bit of gcode
[12:47:25] <Bushman> but if you think about it, AXIS is turning and halshow is counting
[12:47:49] <Bushman> and that's what i wanted.
[12:48:05] <archivist> I know, that is how I worked out my hobbing machine
[12:49:18] <Bushman> i took a rough number of steps per revolution, divided by microstepping divided by motor's number of steps/rev gave me 1450 (+/- 1)
[12:49:55] <Bushman> now i just need to run it for maybe 10 revolutions and see if it's spot on.
[12:50:23] <archivist> with the added encoder because of some unknowns see http://www.archivist.info/cnc/hob2/IMG_1265.JPG
[12:51:23] <archivist> never took a picture of the diagnosis stage
[12:55:01] <Bushman> what am i looking at?
[12:56:35] <archivist> guts of the hobbing machine, which shows some of the gearing
[12:56:56] <archivist> http://www.collection.archivist.info/searchv13.php?searchstr=barber shows more
[12:58:01] <archivist> the encoder in those pics is for the spindle to blank gearing
[12:59:17] <Bushman> it looks nice
[12:59:49] <Bushman> i need a hobbed something for the printer i plan to build
[13:00:09] <Bushman> i was thinking about making one myself but i have no idea how to aproach this thing
[13:00:20] <Bushman> this machine would solve my problem XD
[13:02:34] <archivist> I still have a fault to find and fix though
[13:06:24] <Bushman> go fix it!
[13:06:29] <Bushman> do it! do it now! :D
[13:07:06] <Bushman> i've run the A axis on G0 for 3600 and it landed spot on the start.
[13:07:28] <Bushman> looks like i've got the ratio just right
[13:08:12] <Bushman> next, i need to get some nice little chuck for it
[13:09:29] <Bushman> also i think i might need a bigger motor with less steps to make it go faster
[13:09:39] <archivist> I rotate one direction only for cutting usually to get rid of backlash
[13:09:57] <Bushman> yea, i thought about that too
[13:10:36] <Bushman> i still need to insert one roll pin and then i can do some test of the backlash
[13:10:55] <Bushman> but it fell on the floor and i can't locate it
[13:11:50] <Bushman> the stepper is a bit smalish
[13:11:52] <Bushman> http://i.imgur.com/KAhEihrl.jpg
[13:12:34] <Bushman> but it's better than the synchronous 230V motor that was there in the first place :D
[13:13:15] <archivist> I use larger steppers on my rotaries http://www.collection.archivist.info/archive/DJCPD/PD/2013/2013_08_11_bevel/IMG_1633.JPG
[13:13:53] <archivist> poor thing on the left had to carry the one on the right
[13:15:44] <Bushman> hee
[13:16:11] <Bushman> well, i don't have such nice rotaries but this will have to do. at least for a while
[13:16:18] <Bushman> it's damn slow tho.
[13:16:47] <Bushman> NEMA16 100steps motor with 1:1450 gear ratio... :D
[13:17:22] <archivist> reduction ratio is a bit high, drop your microsteps to 1/2 step
[13:18:12] <Bushman> yea, that's the thing... when i drop the microsteping shit hits the fan and i don't know what's happening
[13:18:23] <Bushman> it starts to run in reverse :O
[13:18:50] <Bushman> for brief moments but that's enough to fuck things up
[13:19:29] <archivist> acceleration set too high probably
[13:19:45] <Bushman> again, i've tried with really low acc
[13:19:56] <archivist> remember to drop that and top speed in tandem
[13:19:56] <Bushman> it's get jerky and does random things
[13:20:01] <Bushman> donno why
[13:20:18] <archivist> stepping too fast does that
[13:20:26] <Bushman> but it does that at low speeds only!
[13:20:42] <archivist> is it a unipolar motor
[13:20:45] <Bushman> after it speeds up it goes smooth and does not stall
[13:20:55] <Bushman> 6 wires
[13:21:03] <Bushman> 2 coils
[13:21:17] <archivist> how have you wired it though
[13:21:30] <archivist> that can do uni and bipolar
[13:21:59] <Bushman> i used the far ends of the coil... skipped the center
[13:22:26] <archivist> so used it as bipolar in series
[13:23:36] <archivist> you can be hitting resonance, the microstepping helps that (but is slower)
[13:23:47] <Bushman> at least i think that's what i did... i'll double-check the wires.
[13:23:57] <Bushman> https://www.probotix.com/image/motor_coil_configurations.jpg
[13:23:59] <Bushman> top right
[13:24:18] <Bushman> my multimeter battery is dead ;/
[13:54:40] <Bushman> it seems i've mixed up the wires and only used half the windings
[13:55:16] <Bushman> connected it the right way and i can't get the same results... it keeps stalling
[13:55:19] <Bushman> :(
[13:55:23] <Bushman> i need abigger motor
[13:55:39] <malcom2073> Or lower acceleration, or lower speed, or more current :-P
[13:55:47] <malcom2073> Or more voltage
[13:56:10] <Bushman> my board can only give 2.5A and that's to much for this motor anyway
[13:56:43] <Bushman> the acceleration doesn't seem to be the problem, it starts up nice even at 300°/s²
[13:56:56] <Bushman> but i can't run it as fast as before
[13:57:10] <malcom2073> higher voltage maybe, you may be reaching torque dropoff?
[13:58:02] <Bushman> wich in lay terms is "It's faster than a snail! But that's how it is when snails go to sleep"
[13:58:14] <Bushman> malcom2073: most likely
[13:58:32] <Bushman> also take into account this motor was not designed for this gearbox :D
[13:58:46] <Bushman> i just slapped it together with some nuts and bolts :D
[13:59:22] <Bushman> that and i've drilled the internal diameter of the motor gear to fit it on this motor
[14:07:33] <Bushman> welp. bummer. only 5.5°/s²
[14:09:24] <Bushman> s/s²/s/
[14:10:20] <Computer_barf> lets say someone was using hydrochloric to depopulate electronics boards from their solder and components
[14:10:47] <Computer_barf> and then later milled those boards , and the trace hydrochloric evidently stained the surface of the mill
[14:11:19] <Computer_barf> not like serious pitting or anything I think has disrupted the integrity of the plane but
[14:11:33] <Computer_barf> enough to displease my over aesthetics
[14:11:57] <Computer_barf> how do you guys go about cleaning your mill beds
[14:12:32] <ssi> scotchbrite
[14:15:25] <malcom2073> 0000 (4x) steel wool if it's really bad
[14:16:08] <malcom2073> ohh
[14:16:44] <PetefromTn_> I use a mill table stone
[14:32:40] <_methods> stone
[14:33:27] <_methods> i stone my table every time i break down and stone the bottom of my vises
[14:37:32] <Computer_barf> wouldn't the stone unlevel the bed
[14:37:56] <Computer_barf> or do you basically do a uniform pattern over the entire surface
[14:38:21] <_methods> uniform and its not like you're takin that much off
[14:38:41] <_methods> its just knockin any embedded chips off or surface rust
[14:39:04] <Computer_barf> if it were to, i guess you would have the table run through a surface grinder?
[14:39:25] <PetefromTn_> unless your table is made of paper mache you would have to be rubbing awfully hard in the same spot for a good while to do any real damage...
[14:45:35] <_methods> and i really wouldn't use steel wool unless you want surface rust everywhere
[14:46:10] <_methods> if you want to do some gentle cleaning then use a scotch brite but otherwise just stone it
[14:47:15] <robinsz> so .. this spindle speed thing
[14:47:33] <robinsz> if I home the machine
[14:47:48] <robinsz> and set press spindle on ...
[14:48:10] <robinsz> type "S8000" in the MDI, it should run?
[14:48:34] <PetefromTn_> m3 s8000
[14:48:39] <_methods> ^
[14:48:46] <robinsz> why M3?
[14:48:51] <_methods> spindle clockwise
[14:48:53] <PetefromTn_> or m4
[14:48:55] <_methods> m3/m4/m5
[14:49:00] <_methods> m5 spindle stop
[14:49:08] <robinsz> so, why do i have to type that?
[14:49:14] <_methods> that's the rulez
[14:49:23] <_methods> simon says m3
[14:49:40] <PetefromTn_> you can also just hit spindle fwd or rev and press the plus buttons
[14:49:47] <robinsz> so the spindle stop button, clockwise and anticlockwise buttons on the GUI are redundant?
[14:50:02] <PetefromTn_> no not really
[14:50:13] <robinsz> they just dont work then?
[14:50:19] <PetefromTn_> they should
[14:50:23] <robinsz> wait ...
[14:50:34] <robinsz> did anyone read what I wrote?
[14:50:35] <PetefromTn_> press spindle fwd then press plus button underneath
[14:50:52] <robinsz> if I home the machine
[14:50:58] <robinsz> press spindle clockwise
[14:51:07] <robinsz> type S1000 in the MDI
[14:51:13] <robinsz> should it run?
[14:51:15] <_methods> no
[14:51:25] <PetefromTn_> dunno never tried it that way
[14:51:30] <Computer_barf> im wondering if there is some quick way to home all axis's to the current location plus touchoff
[14:51:30] <PetefromTn_> probably not
[14:51:32] <_methods> yeah actually sorry i don't know
[14:51:44] <robinsz> so what do the buttons do?
[14:51:47] <_methods> does the spindle clockwise button fire an mdi m3?
[14:52:13] <PetefromTn_> the buttons are for manual control
[14:52:24] <PetefromTn_> MDI is for writing little code snippets
[14:52:41] <robinsz> lets try this another way
[14:52:46] <PetefromTn_> I use the buttons when I am touching off with my edge finder etc..
[14:53:13] <robinsz> I was just getting weird bahaoviour
[14:53:26] <robinsz> press spindle on, get odd speed
[14:53:40] <robinsz> type "S1000", spindle stops
[14:54:34] <robinsz> if the spindle scale is set low, like "10.0" or something
[14:54:41] <PetefromTn_> pressing spindle on should not get any spindle speed at all
[14:54:46] <robinsz> oh
[14:54:48] <robinsz> really?
[14:55:02] <_methods> unless he's previously commanded a speed
[14:55:11] <robinsz> sounds dangerous already
[14:55:26] <PetefromTn_> yeah spindle fwd or rev just waits for you to press up on the speed
[14:55:33] <robinsz> right
[14:55:45] <_methods> go to mdi and type in m3s1000
[14:55:54] <_methods> see if that gives you the correct speed
[14:55:55] <PetefromTn_> yup
[14:56:16] <robinsz> so how can I set a minimum speed? my spindle hates low speeds, so 2000 is really a minimum
[14:56:30] <robinsz> i dont want it running lower than that
[14:56:38] <robinsz> some sort of HAL thing?
[14:56:49] <_methods> in your config file i'm sure
[14:56:54] <_methods> ini
[14:57:03] <robinsz> all I have in ther is a scale
[14:57:21] <_methods> there isn't spindle min/max?
[14:57:21] <robinsz> something like
[14:57:28] <robinsz> no ther isnt
[14:57:39] <robinsz> [SPINDLE_9]
[14:57:47] <robinsz> scale 24000.0
[14:57:47] <_methods> hmm i don't know i just control mine manually right now
[14:57:52] <robinsz> or something
[14:58:42] <robinsz> ok,
[14:58:49] <robinsz> so next question :)
[14:58:57] <robinsz> trajectory planner ...
[14:59:10] <robinsz> my old control (which died)
[14:59:21] <_methods> yeah maybe you do need to do it in hal
[14:59:38] <robinsz> if I tried to cut a square, it would zip along the straights
[14:59:43] <PetefromTn_> you should have output max and min limits in your .ini
[15:00:06] <robinsz> then slow at the corners
[15:01:56] <skunkworks> that sounds normal....
[15:01:58] <_methods> that's a product of your acceleration and trajectory planning usually
[15:02:12] <robinsz> so I set up the machine
[15:02:33] <robinsz> loaded up the axis.ngc test program
[15:02:44] <robinsz> yanked the speed up
[15:02:52] <robinsz> ran it ...
[15:03:02] <robinsz> and it rounded the corners on the letters
[15:03:15] <robinsz> if I slow it down lots, it hits the corners
[15:04:00] <skunkworks> http://linuxcnc.org/docs/2.6/html/gcode/gcode.html#sec:G61-G61_1
[15:04:19] <skunkworks> you can make linuxcnc follow the path as close as you want in gcode
[15:05:26] <robinsz> ooh
[15:05:29] <robinsz> lovely!
[15:13:11] <robinsz> that looks awesome ... I remember the huge problems I ahd with traj on plasmas, that looks like it would have totally sorted it
[15:14:20] <skunkworks> you might want to try V2.7 - the next release version of linuxcnc. it has a much improved tp.
[15:16:25] <Computer_barf> is there a gcode i could put into the mdi that would home x y z and touch off? each time I cut out my part i have to do this and it would be nice to have an automatic one button way to do it
[15:19:32] <Computer_barf> note i don't mean move to home, i mean set home to the current locaiton
[15:21:18] <JT-Shop> lula is mean and hard to program
[15:21:56] <_methods> http://www.linuxcnc.org/index.php/english/forum/10-advanced-configuration/24367-creating-a-qone-button-touch-offq-button
[15:23:36] <Computer_barf> that sounds like the droid i am looking for
[15:25:32] <PetefromTn_> naah these aren't the droids you are looking for (waves hand like a jedi knight!!)
[15:26:07] <_methods> you see the star wars battlefield videos from E3?
[15:26:17] <_methods> i'll be playin that
[15:26:42] <Computer_barf> yes looks pimp
[15:27:04] <_methods> https://www.youtube.com/watch?v=3Myb8v_8qBo
[15:28:10] <Computer_barf> im making hearts out of depopulated motherboards, to encapsilate and turn into ear rings
[15:28:33] <Computer_barf> but it would be cool to make star wars related outlines too
[15:28:56] <Computer_barf> comes out with the copper traces buffed to a shine
[15:29:27] <PetefromTn_> that is so kickass
[15:30:03] <Computer_barf> yeah if you guys have shape ideas im making a list
[15:30:22] <Computer_barf> making larger keychains too
[15:30:41] <_methods> https://www.youtube.com/watch?v=ZwWLns7-xN8
[15:30:45] <_methods> thats the reveal trailer
[15:30:47] <_methods> from E3
[15:31:33] <_methods> much prettier
[15:32:26] <PetefromTn_> DAMN DO I EVER WANT AN IMPERIAL SPEEDER BIKE we gotta invent one
[15:32:43] <_methods> hahah
[15:33:02] <_methods> https://www.youtube.com/watch?v=jXU5k4U8x20
[15:33:10] <_methods> the gameplay video
[15:33:13] <_methods> from E3
[15:33:16] <JT-Shop> WOW I think I just made sheetcam suck the volts out of the tool description and put it into M68
[15:34:12] <_methods> ah nice
[15:34:34] <_methods> you manually set the volts now?
[15:34:34] <PetefromTn_> Oh shit man you are playing the bad guys!!~
[15:35:15] <_methods> hah yeah it takes 2 to tango man
[15:35:31] <PetefromTn_> Stay away from the darkside man!!!
[15:39:28] <_methods> hehe
[15:43:50] <JT-Shop> not any more, the post processor sets the volts and the thc comp gets it from m68
[15:48:15] <_methods> nice
[15:49:03] <_methods> sheetcam using lua or something?
[15:49:42] <JT-Shop> yea
[15:49:53] <JT-Shop> now I won't forget to set the voltage any more
[15:52:13] <_methods> heheh
[15:52:17] <_methods> yeah that sux
[15:52:21] <_methods> sparks all over
[15:52:45] <_methods> spark volcano
[15:53:07] <JT-Shop> torch dives into the work till the limit is hit
[15:53:18] <_methods> yeah that sux even worse
[15:53:34] <JT-Shop> good thing it is a floating head
[15:56:46] <_methods> ah cool linux sheetcam is free?
[15:58:07] <_methods> https://blog.adafruit.com/2015/06/19/our-meeting-with-jonathan-jaglom-the-new-ceo-of-makerbot-makerbot-jjaglom-stratasys-adafruit/
[15:58:10] <_methods> lol
[16:01:05] <JT-Shop> kinda
[16:03:41] <_methods> oh they limited the code lines
[16:07:15] <malcom2073> Lol. "Is makerbot interested in patching things up with the OS community?" "We'd like to promote thingiverse!"
[16:08:17] <_methods> talk about throwing softballs
[16:08:27] <_methods> i wonder how much money they paid adafruit
[16:09:12] <XXCoder> not very direct answer
[16:09:41] <malcom2073> It wouldn't be, they've never been really direct
[16:09:55] <XXCoder> basically start talking
[16:09:58] <XXCoder> but besides that
[16:14:49] <Deejay> gn8
[20:52:24] * furrywolf exhausted-wolfy-flops
[20:54:36] <furrywolf> only 11:15 of work today!
[20:55:16] <XXCoder> 11 hours?
[20:55:18] <XXCoder> dang'
[20:55:51] <roycroft> 11 minutes and 15 seconds of work
[20:56:07] <furrywolf> no, unfortunately.
[20:56:11] <roycroft> the other 11 hours, 3 minutes, and 45 seconds were spent on irc
[20:56:24] <XXCoder> 11 days 15 hours ;)
[21:24:05] <_methods> http://www.octafinance.com/autodesk-inc-nasdaqadsk-director-hallam-dawson-unloaded-539640-in-stock/