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[01:57:44] <DJ9DJ> moin
[03:45:56] <Loetmichel> mornin'
[07:56:49] <mrsun> gah cant get the feed down enough on the lathe to get a nice finnish on stuff :(
[07:59:55] <mrsun> even tho the nose radius on the tool is quite large i get something like a very fine pitched thread :/
[08:21:51] <archivist_herron> some have flat ish front to rub /flatten
[08:22:26] <johncc3> Hi all. Strange problem: I write to the parallel port (outb-style), and a fraction of a second later it gets reset to 0 by another program
[08:23:00] <skunkworks> Is linuxcnc running?
[08:23:08] <johncc3> I removed all system modules relating to the parallel port, and stopped CUPS too.
[08:23:18] <johncc3> No program is running at all
[08:23:23] <skunkworks> oh
[08:23:53] <johncc3> Well, not exactly. I wrote a small program to get access to the parport, just to check this
[08:24:21] <johncc3> I have the impression that some program is resetting the parport about twice per second
[08:26:41] <skunkworks> johncc3, you did this?
http://wiki.linuxcnc.org/cgi-bin/wiki.pl?NewRTInstall
[08:26:56] <skunkworks> sudo rmmod lp
[08:28:00] <johncc3> Already removed lp, ppdev, parport, and some others related.
[08:28:22] <skunkworks> well - you are above my pay grade then...
[08:34:00] <frallzor> ahoyhoy
[09:56:40] <frallzor> you yanks in here, got any nice tips on them nice old cinema signs and where to look for inspiration for one? =)
[10:02:19] <L84Supper> frallzor: by"cinema signs" do you mean the giant outdoor sign with the name of the cinema on it? or movie posters?
[10:03:27] <frallzor> the giant outdoor sign
[10:07:02] <L84Supper> http://www.signmuseum.org/
[10:08:25] <frallzor> well the cost of going over to the states to visit that place doesnt motivate med =P
[10:08:28] <frallzor> * me
[10:08:49] <L84Supper> do you want to buy one?
[10:08:59] <frallzor> nope, make one
[10:09:11] <L84Supper> looking for inspiration?
[10:09:12] <frallzor> want a new sign for le home cinema
[10:09:14] <frallzor> yes
[10:09:41] <frallzor> that special 50s style, streamlined signs
[10:13:06] <L84Supper> google images for vintage cinema signs
[10:35:12] <JT-Shop> for a RIP can you use a script to launch with?
[10:42:43] <dgarr> example:
http://www.panix.com/~dgarrett/stuff/rip.sh
[10:42:57] <JT-Shop> hi dgarr
[10:43:05] <dgarr> hey
[10:43:20] <JT-Shop> the page opens then closes
[10:43:51] <JT-Shop> oh I see it is a file
[10:43:59] <dgarr> probably because your browser wont open an executable, get it with wget would work
[10:44:35] <JT-Shop> ok, it downloaded it but I'm not used to chrome so it fooled me
[10:46:29] <dgarr> http://www.panix.com/~dgarrett/stuff/rip.txt probably opens in window
[10:46:54] <JT-Shop> thanks
[10:47:07] <dgarr> np
[10:48:21] <dgarr> you could make multiple scripts with different names for different ini files too of course
[10:51:33] <JT-Shop> cool
[10:58:06] <JT-Shop> dgarr: I noticed that gremlin didn't show the back plot from pyngcgui but it does when you load a file
[11:17:27] <tjb1> JT-Shop: You ever cut aluminum on your table?
[11:25:37] <ReadError> sup guys
[11:25:49] <ReadError> anyone ever cut with this style endmill?
[11:25:50] <ReadError> http://www.ebay.com/itm/150942668212?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649
[11:28:30] <syyl_ws> yep
[11:28:40] <syyl_ws> 10mm fibreglass
[11:28:52] <ReadError> yea thats what im using it on
[11:28:59] <ReadError> something like fiberglass....g10
[11:29:11] <ReadError> i assume i should use a higher spindle speed right?
[11:29:36] <skunkworks> yum
http://www.youtube.com/watch?v=mHEpjiI1ZO0
[11:29:42] <syyl_ws> used about 40k rpm..
[11:30:20] <ReadError> they hold up pretty good?
[11:30:48] <syyl_ws> i had diamond coated ones
[11:30:55] <syyl_ws> they held up very good
[11:31:03] <syyl_ws> few houndred metres of engagement
[11:31:33] <ReadError> is there any type of plugin i could use that keeps track of tool usage?
[11:31:44] <ReadError> if not that would be pretty cool
[11:32:16] <syyl_ws> http://www.datron.de/en/products/millingtools/product-range/micro-toothed-end-mills.html
[11:32:21] <tjb1> ReadError: A piece of paper
[11:32:54] <syyl_ws> that are our endmills that we use on that stuff
[11:33:01] <syyl_ws> the diamond coated ones
[11:33:11] <ReadError> oh these are much cheaper :)
[11:33:24] <ReadError> tjb1: yea, thats possible as well
[11:33:37] <ReadError> it would just be a neat stat and way to keep track of them though
[11:33:53] <ReadError> figured there would be some industrial use for it
[11:33:58] <tjb1> excel :P
[13:41:26] <JesusAlos> hi
[13:54:48] <JT-Shop> tjb1: maybe once
[14:22:43] <JT-Shop> how do you run a MDI command in touchy?
[14:23:11] * frallzor touches JT-Shop
[14:26:12] <cradek> JT-Shop: poke the mdi tab, poke G, 1, next, 0, poke cycle start => runs G0X1
[14:26:36] <cradek> JT-Shop: if it's not obvious, it's a bug
[14:36:54] <JT-Shop> sure fooled me, I got G0 X0 etc... do you mean the physical start button?
[14:37:36] <cradek> I don't understand what you mean
[14:37:49] <cradek> yes you push the button to execute the mdi command
[14:38:27] <JT-Shop> ok, I was looking on the GUI for something to run the MDI
[14:39:32] <JT-Shop> got my mind right now
[14:39:39] <cradek> heh
[14:40:05] <Tom_itx> what's german time right now?
[14:40:23] <Tom_itx> 9pm?
[14:40:28] <alex_joni> 21
[14:40:41] <JT-Shop> 7 hours later or so
[14:40:48] <ReadError> +6 EST
[14:40:57] <alex_joni> JT-Shop: later than what?
[14:41:17] <JT-Shop> later than the german time here
[14:42:31] <Tom_itx> i get 9:29pm
[14:42:47] <ReadError> yup
[14:43:00] <ReadError> i actually had this question yesterday to some other germans
[14:43:07] <ReadError> always thought it was more than 6hrs
[14:43:10] <tjb1> JT-Shop: what kind of edge finish?
[14:50:10] <JT-Shop> don't remember
[14:53:05] <alex_joni> before plotters:
http://www.spoon-tamago.com/2013/01/21/dad-spends-7-years-on-incredibly-detailed-maze/
[15:14:10] <skunkworks> I did update the bios also
[15:22:34] <mrsun> man cast iron was amazing to work with int he lathe .. pitty its so dirty :P
[15:28:13] <alex_joni> heh:
https://i.chzbgr.com/maxW500/7056017408/h2ED32DDA/
[15:30:31] <Jymmm> alex_joni: a present from you?
[15:32:40] <alex_joni> Jymmm: heh, no
[15:32:49] <Jymmm> =)
[15:34:23] <andypugh> I need lathe roughing cycles!
[15:34:30] <frallzor> one of my friends did the same to his younger brother once
[15:34:31] <andypugh> Any suggestions of alternatives?
[15:34:41] <frallzor> filles a glass with colored water and a note "this is pee"
[15:35:16] <andypugh> WetVac
[15:36:05] <DJ9DJ> gn8
[15:36:12] <andypugh> Back to the CNC stuff, I am wanting to make some metal-spinning forms. Not sure how to make the G-code
[15:42:39] <dgarr> andypugh: woodlathe
[15:43:08] <andypugh> dgarr: I need two parts to fit inside each other.
[15:43:40] <andypugh> I will spin by hand, but intend to make the forms with CNC
[15:43:56] <dgarr> woodlathe and practice then
[15:44:07] <dgarr> :P
[15:44:26] <Jymmm> pocket knife and hand held cordless drill lathe
[15:45:12] <frallzor> Jymmmy Seinfeld!
[15:45:31] <andypugh> dgarr: Might get expensive in metal blanks, iteratively re-shaping the forms.
[15:46:25] <andypugh> I don't see what your objection is to me CNC machining the formers. This is a CNC channel, after all.
[15:48:27] <andypugh> Maybe I will just write the profile as G-code then just approach the blank, cutting mainly air, most of the time.
[15:50:02] <JT-Shop> just make straight cuts to remove the excess material
[15:50:21] <andypugh> JT-Shop: Yes, but, straight cuts to _where_
[15:50:41] <JT-Shop> well do you have a cad drawing of the part?
[15:50:50] <andypugh> I guess I could do it with graph-paper, but that seems stupid
[15:51:14] <andypugh> Yes, I have a CAD drawing.
[15:51:16] <JT-Shop> offset the part some amount and draw straight lines and trim to the offset line
[15:51:35] <JT-Shop> then you have the Z stop point for each depth
[15:52:37] <andypugh> Did I mention this is 220mm dia?
[15:53:46] <andypugh> Has anyone managed to make the Inkscape gcodetools add-in make lathe code?
[15:55:13] <JT-Shop> what is the shape?
[16:00:11] <andypugh> http://imagebin.org/246745
[16:01:24] <JT-Shop> break the roughing down to blocks and you can get most of it roughed out then run your profile a few times to clean up
[16:02:32] <andypugh> I guess so. I was just hoping someone had written a CAM program since last time I looked.
[16:02:59] <andypugh> (Or had written the roughing cycles that keep being discussed)
[16:03:04] <JT-Shop> I use ngcgui with a sub on my lathe to step over a profile
[16:04:25] <andypugh> Sounds like I am not allowed to use ngcgui :-)
[16:13:34] <JT-Shop> because of your accent?
[16:16:35] * Tom_itx waits for a log splitter update
[16:16:48] <andypugh> JT-Shop: dgarr wanted me to use a wood lathe and hand tools.
[16:17:37] <Tom_itx> andypugh do you need some gcode done?
[16:18:02] <JT-Shop> andypugh: sounds like fun
[16:18:05] <andypugh> I am seeing if I can persuade Inkscape to do the job.
[16:18:18] <JT-Shop> my cam only does mill... so I can't convert it for you
[16:19:15] <Tom_itx> i got a lathe package but i haven't used it. i tried one thing for jt to see what it would do
[16:19:19] <andypugh> JT-Shop: It is, and I have spent many happy hours on a wood lathe making bits of furniture, newel posts, etc. But this job calls for more precision.
[16:19:48] <Tom_itx> i could do it given the parameters you need
[16:19:55] <Tom_itx> i think
[16:20:23] <Tom_itx> i just don't have much experience with my lathe package since i only did mill on it
[16:20:30] <JT-Shop> you could just step the profile over till your done
[16:20:32] <Tom_itx> we mdi'd all the lathe stuff
[16:20:36] <Tom_itx> yeah
[16:20:44] <Tom_itx> getting the right tool and tool offset etc
[16:20:51] <Tom_itx> but i think i mostly figured that out
[16:20:59] <Tom_itx> he could tweak the feed and speed
[16:25:57] <Tom_itx> andypugh, give me a 2d flat pattern and i'll spit out some code for ya
[16:26:16] <Tom_itx> offset from zero, just halfround is all i need
[16:45:17] * JT-Shop is using Touchy-Gremlin-Ngcgui GUI on the BP :)
[16:53:57] <Tom_itx> ok it's not liking that lemme try it a different way
[16:54:11] <Tom_itx> solidworks brought it in ok though
[16:57:01] <Tom_itx> all i get in the lathe package though is the section AA arrows
[17:01:09] <Tom_itx> andypugh,
[17:01:23] <Tom_itx> can you save just the inner profile of each one in separate files?
[17:01:42] <andypugh> I can try...
[17:01:45] <Tom_itx> you just want it to fit the inside right?
[17:02:08] <Tom_itx> i'm working on it, problem is getting it into my old lathe package
[17:02:14] <Tom_itx> but i've dealt with that befroe
[17:02:17] <Tom_itx> before
[17:09:43] <andypugh> It seems that I might have sent you two duff files, as importing them in to Inkscape seems to indiacte that the disabled layers are still there.
[17:11:48] <Tom_itx> i'm working on it as well
[17:12:03] <Tom_itx> getting it to an old format is the trick
[17:12:40] <Tom_itx> try iges as well
[17:12:48] <Tom_itx> maybe i can work with that easier
[17:13:05] <andypugh> IGES is 3D isn't it?
[17:13:13] <Tom_itx> i got this into acad and maybe i can save what i need to the cam program
[17:13:21] <andypugh> That might be tricky, as I want the inner profile, not the modelled part.
[17:13:31] <Tom_itx> i know
[17:13:58] <Tom_itx> supper..
[17:14:02] <andypugh> I can send a DWG, that should have the required profiles in layes all to themselves?
[17:14:25] <Tom_itx> i'll take whatever you send and work with it
[17:19:15] <Tom_itx> andypugh, also what size block are you starting with?
[17:20:21] <andypugh> 2" thick disc of about the right diameter.
[17:20:29] <Tom_itx> k
[17:26:23] <Tom_itx> andypugh, where do you normally set zero?
[17:26:51] <Tom_itx> we'll say 2" out in z and centerline
[17:27:20] <Tom_itx> well i'll need to convert to metric so that will change
[17:27:34] <andypugh> Normally X zero is centreline, and Z zero is the rightmost surface (so all Z cuts are in negative space)
[17:28:06] <Tom_itx> k so the material OD and the centerline
[17:28:22] <Tom_itx> err no
[17:28:24] <Tom_itx> rightmost being the face of the block
[17:28:50] <Tom_itx> i'll give you all that once i actually get it in the cad
[17:30:22] <Tom_itx> too many distractions here to think right at the moment
[17:32:16] <Jymmm> Tom_itx: LOOK!!!! Shiny thing
[17:34:32] <JT-Shop> cncbasher: you tried the latest touchy pyngcgui gremlin GUI?
[17:34:38] <andypugh> It looks like Inkscape Gcodetools might work, if I could figure it out.
[17:34:55] <JT-Shop> if you figure it out teach us how
[17:36:00] <Tom_itx> andypugh, how deep a cut do you like to take?
[17:36:25] <andypugh> I don't know, I am using modelboard for the first time.
[17:36:39] <andypugh> Lets say 0.75mm?
[17:36:47] <Tom_itx> ok
[17:36:52] <andypugh> (It's a weedy lathe)
[17:37:08] <Tom_itx> we can adjust that if necessary
[17:37:15] <andypugh> It _looks_ like Gcodetools can work:
http://www.mycncuk.com/forums/attachments/g-code-corner/2843d1282636213-free-cam-inkscape-0089-gcode-tools-lathe-emc-screenshot.png
[17:37:17] <Tom_itx> if it doesn't cut right etc
[17:37:36] <andypugh> But I have no idea how they produced that output :-)
[17:37:46] <Tom_itx> i knew i should have spent more time on this lathe package
[17:37:58] <Tom_itx> we just never used it
[17:39:39] <cncbasher> JT-Shop:not yet
[17:40:34] <JT-Shop> I've got it working on the BP mill with the touch screen
[17:42:05] <andypugh> http://www.youtube.com/watch?v=4jYKMAjzK3A Is interesting, but no help with Lathe-mode
[17:43:37] <JT-Shop> cncbasher: when you finalize a sub it sends you right to gremlin so you can view the sub it is cool
[17:43:55] <Tom_itx> i hope i don't have to revert back to my DOS version !
[17:45:18] <Tom_itx> aarg, i still only get the cross seciton points
[17:50:46] <cncbasher> JT-Shop:yea cool
[17:51:15] <cncbasher> it's becoming late here to try anything now , i'll run it in the morning
[17:54:51] <Tom_itx> andypugh can you save them as iges?
[17:55:28] <andypugh> Isn't IGES 3D?
[17:55:39] <Tom_itx> yeah that probably won't work either
[17:56:14] <Tom_itx> all i get in my cam package is the sectional arrows
[17:56:26] <Tom_itx> what layer is it on?
[17:58:51] <L84Supper> IGES is most certainly 3d
[17:59:51] <andypugh> Tom_itx: The layers are "Outer" and "Inner"
[18:03:51] <andypugh> Inkscape / Gcodetools is getting annoyingly close:
http://imagebin.org/246754
[18:04:48] <skunkworks> wow - enough decimal places?
[18:05:37] <Tom_itx> hell of it is, i can see it in solidworks and acad but can't get it into the cad cam
[18:05:39] <L84Supper> sub angstrom resolution, nudged quanta
[18:06:40] * JT-Shop hates making countersunk holes :(
[18:07:43] <Valen> hey andypugh
[18:07:49] <Valen> been meaning to talk to you
[18:08:09] <Valen> I'm seriously thinking about getting some DMM-Tech drives
[18:08:20] <andypugh> Oh?
[18:08:24] <Valen> yeah
[18:08:41] <Valen> tossing up between the 750W and the smaller ones
[18:08:52] <Valen> the 750W ones have rather more inertia though
[18:09:03] <Valen> the smaller ones are $800 cheaper for the set we need
[18:09:12] <Valen> but do need a 48v dc power supply?
[18:09:59] <andypugh> How do you intend to control them?
[18:10:25] <andypugh> I think that only the Dyn3H drive is analogue voltage / LinuxCNC compatible.
[18:10:52] <andypugh> The smaller drives are step/dir and have no quadrature output for LinuxCNC
[18:12:13] <Valen> oh
[18:12:20] <Valen> well that makes a bigger difference
[18:12:35] <Valen> the tossup is these, or a kelig setup
[18:12:55] <Valen> I keep getting accelerations of like 3G for out router
[18:13:02] <Valen> is that totally excessive?
[18:14:01] <andypugh> Check with DMM though, don't take my word for it.
[18:14:02] <andypugh> Valen: No, 3G sounds reasonable.
[18:14:02] <andypugh> I made a 500G machine once :-)
[18:14:26] <Valen> so its not an insane acceleration?
[18:14:34] <Valen> its hitting top speed in like .0something of a second
[18:17:29] <Valen> 500G of acceleration? thats a low powered tank gun
[18:17:55] <andypugh> It did tend to destroy itself. It was for crash-simulation.
[18:21:50] <Tom_itx> andypugh what program did you use to create this?
[18:22:00] <andypugh> Inventor
[18:22:27] <Tom_itx> you don't have acad?
[18:22:29] <Valen> so the current plan is a pair of those 750's driving a ~60kg gantry
[18:22:39] <Valen> with 1500mm long screws
[18:22:47] <Valen> 20mm with a 10mm lead
[18:23:24] <andypugh> Inventor is by AutoDesk...
[18:23:30] <Tom_itx> i know
[18:23:45] <Tom_itx> i can get it into acad or solidworks but can't get it into the cam package
[18:23:46] <Valen> inventor is the big boy version of acad isnt it?
[18:27:34] <andypugh> Tom_itx: Thanks for wasting your evening on me. :-)
[18:27:35] <JT-Shop> what RPM do you run a single flute counter sink?
[18:28:14] <Tom_itx> andypugh i can usually find a way but this isn't cooperating
[18:28:39] <andypugh> I am having a very similar experience with Inkscape / gcodetools
[18:28:51] <Tom_itx> it's writing something in the header that the translator doesn't like
[18:28:54] <andypugh> It _looks_ like it ought to work, but doesn't/
[18:29:13] <Tom_itx> i've tried 3 different versions of translators
[18:29:37] <Tom_itx> all end up the same
[18:29:37] <Tom_itx> save it on a numbered layer once and try that
[18:29:47] <Tom_itx> my cam uses numbered layers
[18:29:57] <Tom_itx> 99 is usually a good one
[18:30:08] <Tom_itx> i doubt that fixes anything but...
[18:34:46] <Tom_itx> k i got the 3d iges in
[18:34:59] <Tom_itx> the mill program now to see if i can save it to 2d
[18:35:09] <andypugh> I can do SVG?
[18:35:23] <Tom_itx> i don't think that'll help
[18:35:36] <Tom_itx> send me the other part as iges and i'll work on it tonight
[18:35:38] <andypugh> I was looking at saving DXF from Inkscape, but need pstoedit installed
[18:35:48] <Tom_itx> i may be able to do something with this i dunno for sure
[18:39:20] <Tom_itx> now if i can slice it at x0 y0 and save it as 2d...
[18:41:14] <Tom_itx> i could generate my own polyline from the model i suppose
[18:42:14] <Jymmm> I want to toss two SS water bottles that have coatings on them into the coals. The last time I did this after a few days rust appeared on the inside of the bottles. Was that due to defects in the pervious bottles, or the "baptism by fire"?
[18:43:38] <Tom_itx> andypugh, i think you sent me outer.igs, send inner.igs before you sign off and i think i can work with that
[18:49:37] <Valen> heres a question,
[18:49:55] <Valen> I make a GEDA out of kicad, and want to make a solder mask, any suggestions?
[18:50:35] <Valen> Jymmm: look up stainless corrosion properties vs temperature
[18:51:00] <Valen> most stainless will start rusting in the presence of water over ~60C
[18:51:30] <Valen> if you are burning a carbon containing coating it will likely affect the surface chemistry
[18:51:47] <Valen> andypugh: so do you think the 750s are total overkill?
[18:51:59] <Valen> basically are we wasting $800 getting them over the keligs with half the torque
[18:52:00] <andypugh> What size machine?
[18:52:07] <Valen> 1200x1200mm work area
[18:52:13] <Valen> 60kg gantry
[18:52:48] <andypugh> I would expect to be using decent-sized motors with that.
[18:53:01] <Tom_itx> ok i at least got a polyline from it
[18:53:03] <andypugh> Which Kelings (and drives?)
[18:53:03] <Valen> yeah, but 400w is decent too ;->
[18:53:15] <Valen> geckos and the biggest size 34's
[18:53:27] <Valen> same torque at 40A but geckos only make 20A
[18:53:46] <andypugh> Stepper?
[18:53:50] <Valen> servo
[18:54:18] <andypugh> Have you seen
http://machmotion.com/cnc-products/drives-motors/teco-servo-drives-and-motors.html ?
[18:54:28] <Valen> probably not lol
[18:55:00] <Valen> they look to be the same pice as the dmms for half the wattage?
[18:55:53] <Valen> we were looking to gear it ~2:1 as well
[18:56:01] <PCW> But they have abetter looking Chinese case
[18:56:08] <Valen> that much is true
[18:56:27] <Valen> PCW: I was thinking about using the mesa drives rather than the dmm ones
[18:56:34] <andypugh> DO you have a link to the Keling motors?
[18:56:41] <Valen> but I'm a bit worried about compatability
[18:56:44] <Valen> http://www.automationtechnologiesinc.com/products-page/nema-34-dc-servo-motor/nema34-1125ozin-dual-shaft-servo-motor
[18:56:58] <Tom_itx> ok andypugh i got it into the lathe package
[18:57:14] <andypugh> Ah, DC brushed motor?
[18:57:16] <Valen> also is hooking the mesa bigass brushless drivers to 240V mains supported?
[18:57:18] <Valen> yeah
[18:57:32] <andypugh> Needs an encoder...
[18:57:41] <Valen> all up it still winds up cheaper
[18:57:45] <Tom_itx> i think the workplane is flipped though
[18:58:04] <andypugh> And sold out...
[18:58:10] <Valen> we aren't in a rush
[18:58:19] <Tom_itx> andypugh, z axis on the lathe should be right to left correct?
[18:58:22] <andypugh> http://www.automationtechnologiesinc.com/products-page/nema34/kl34bls-series-12 is prettier
[18:58:32] <andypugh> Tom_itx: Aye
[18:58:42] <Tom_itx> x is vertical...
[18:58:49] <andypugh> Indeed
[18:58:50] <Valen> how do you think using the mesa brushless vs one of these analog interface drivers would work?
[18:58:59] <Tom_itx> now to figure out how to flip it
[18:59:20] <Valen> I'm a little concerned about the servo rate
[18:59:45] <andypugh> It's a valid concern
[18:59:56] <Valen> also, how does the 8i23 handle current control?
[19:00:05] <Valen> i mean adding more power when its pushing harder
[19:00:18] <andypugh> I am using 750W and 8i20 on my machine, but it's some way from being complete enough to judge how well it is going to work.
[19:00:32] <Valen> which 750w?
[19:00:45] <Jymmm> I want to toss two SS water bottles that have coatings on them into the coals. The last time I did this after a few days rust appeared on the inside of the bottles. Was that due to defects in the pervious bottles, or the "baptism by fire"?
[19:00:47] <andypugh> Random eBay ones. (Lenze, with resolvers)
[19:01:00] <Valen> (11:37:36) Valen: Jymmm: look up stainless corrosion properties vs temperature
[19:01:00] <Valen> (11:38:00) Valen: most stainless will start rusting in the presence of water over ~60C
[19:01:00] <Valen> (11:38:32) Valen: if you are burning a carbon containing coating it will likely affect the surface chemistry
[19:01:39] <Jymmm> Valen: But the coating is on the OUTSIDE, not inside where the rust was previously
[19:01:48] <Valen> we looked at the rotating nuts, but it seems to be too much hassle
[19:01:59] <Valen> (11:38:00) Valen: most stainless will start rusting in the presence of water over ~60C
[19:02:05] <andypugh> Valen: But 8i20 is high-voltage. I don't think they even wake up properly below 50V
[19:02:16] <Valen> input or output?
[19:02:23] <andypugh> DC input
[19:02:27] <Jymmm> Valen: No water was ever added to the botlles post baptism
[19:02:28] <andypugh> (You still need a PSU)
[19:02:31] <Valen> I was thinking of badboy rectifying mains and slapping it into it
[19:02:47] <Valen> (240v mains here)
[19:02:47] <andypugh> That is what I am doing. But then you need a motor rated for the voltage
[19:03:15] <Valen> presumably the PWM could be set to limit it to around the motors max voltage?
[19:03:31] <Jymmm> Valen: any other thoughts?
[19:03:40] <Valen> made in china crap?
[19:03:50] <Jymmm> Valen: I beleve so
[19:04:03] <Jymmm> Valen: Sub-Zero brand
[19:04:03] <Valen> its stainless steel brand, not actually stainless
[19:04:34] <Valen> any iron contamination inside, dirt, dust whatever would cause it to rust at elevated temperatures
[19:04:54] <Jymmm> Valen: BRAND NEW
[19:04:57] <andypugh> Valen: Keling have a brushless 660W motor + matching drive for $169 + $189.
[19:05:48] <Valen> must admit i haven't looked there
[19:05:49] <Jymmm> Valen: The was previous
http://i43.tinypic.com/2qxb4g8.jpg
[19:06:02] <Jymmm> Valen: Inside the bottom of the bottle
[19:06:11] <andypugh> Valen: I mean
http://www.automationtechnologiesinc.com/products-page/nema34
[19:06:33] <Valen> that looks pretty normal for hot stainless
[19:06:41] <Valen> stainless headers on an exhaust look like that
[19:06:44] <andypugh> (encoders required)
[19:06:59] <Jymmm> Valen: so too much heat all at once?
[19:07:25] <Valen> too hot in the presence of oxygen and carbon
[19:07:39] <Valen> it'll remove any work hardening too
[19:07:39] <Jymmm> Valen: fter the coating is removed, I want to be able to boil water in them.
[19:08:04] <Valen> andypugh: thats going to need one hell of a 48vdc power supply
[19:08:14] <Jymmm> Valen: I dont see this happening on SS cookware.
[19:08:18] <andypugh> I think they sell them too
[19:08:27] <Valen> you don't heat your cookware to 700C
[19:08:49] <Jymmm> Valen: Yeah I do, I toss it on/near the coals
[19:09:02] <Valen> if you have food in it it won't get that hot
[19:09:28] <Jymmm> true, but I'm I'm not sure how else to remove the coating
[19:09:29] <Valen> http://www.xbhp.com/talkies/attachments/motorcycle-ownership-experiences/57669d1335419229-ktm-200-duke-header003.jpg
[19:09:39] <Valen> wire wheel
[19:10:03] <Valen> I'm thinking transformer base psu
[19:10:07] <Valen> not switchmode
[19:10:10] <Jymmm> LOL, it's a tough coating alone, the last time the fire didn't even remve all of it.
[19:10:22] <Valen> how much do you think i could overload one?
[19:10:49] <Jymmm> Valen: that exhaust pic.... EW white plastic, yuck
[19:11:14] <Valen> eh its for something else
[19:11:17] <Valen> look at the colour of the exhaust
[19:11:24] <Valen> its what happens to hot stainless
[19:18:46] <andypugh> OK. I have had enough zero-progress for one day. Time to sleep.
[19:18:59] <Valen> lol
[19:19:02] <Valen> thanks for your help
[19:19:08] <Valen> catchya laters
[19:19:34] <andypugh> If it isn't tomorrow, then it wom't be 'till the 23rd. I am off skiing again :-)
[19:20:01] <Valen> its hot and raining here
[19:23:17] <skunkworks> Mmmm skiing.. I don't know If I am going to get out this eyar
[19:23:17] <skunkworks> year
[19:23:44] <skunkworks> new skis and new boots... I think I have only used them once over the last couple of years
[19:57:04] <Tom_itx> JT-Shop you around?
[20:06:06] <Tom_itx> anybody know the lead angle of a DNMG insert?
[20:10:06] * jdh goes with... 55
[20:11:07] <Tom_itx> no, the tool offset angle
[20:11:16] <Tom_itx> usually like 3 deg
[20:11:29] <Tom_itx> i know it's a 55 deg diamond
[20:11:48] <Tom_itx> maybe the holder is what i'm asking about
[20:20:44] <Jymmm> Valen: Thank you! You were right on the money in respect to tossing an EMPTY bottle into the 700C coals. I filled both of them up, tossed into the coals about 30m ago, and they are still boiling away
[20:22:09] <Tom_itx> somebody posted a sandvik pdf for me some time back.. care to repost that? i can't seem to find where i saved it
[20:22:27] <Jymmm> sandvik?
[20:22:42] <Tom_itx> insert cutters
[20:23:11] <Tom_itx> i know i saved it but i sure can't find it
[20:23:11] <Jymmm> is that the one with the specs in it?
[20:24:33] <Jymmm> Isn't that the one I painstakenly remoted to two pages?
[20:24:39] <Jymmm> reformatted
[20:26:35] <Tom_itx> possibly
[20:26:48] <Tom_itx> i need metric now
[20:27:11] <Jymmm> ~~~ Sandvik General Turning Insert Identification System, document pages A16-A17
http://www.sandvik.coromant.com/SiteCollectionDocuments/downloads/global/catalogues/en-gb/TURN_H.pdf
[20:32:31] <Jymmm> Tom_itx: ~~~ Sandvik General Turning Insert Identification System, document pages A16-A17
http://www.sandvik.coromant.com/SiteCollectionDocuments/downloads/global/catalogues/en-gb/TURN_H.pdf
[20:40:43] <Tom_itx> thanks
[20:41:14] <Jymmm> np
[20:55:04] <Tom_itx> yeah that should do it i think
[20:56:16] <Jymmm> cool, it was a pita to originally locate the correct file
[20:58:08] <Tom_itx> well next time just remind me i have it :D
[20:58:16] <Tom_itx> i hope this works for andy
[20:58:22] <Jymmm> Just search the logs for ~~~ =)
[20:58:43] <Tom_itx> now to work on the 2nd one
[20:58:58] <Jymmm> That's my tag for flagging things to find them easier the next time I'm looking.
[21:00:03] <Tom_itx> now i gotta remember how i did this
[21:15:56] <ReadError> hey guys
[21:15:58] <Jymmm> Valen: I guess you're good for something after all =)
[21:16:00] <ReadError> just double checking
[21:16:09] <ReadError> the green wire on AC is ground right?
[21:16:14] <Valen> i'm friggin awesome
[21:16:14] <ReadError> (fairly certain just dont want to set any fires)
[21:16:20] <Jymmm> ReadError: US ?
[21:16:22] <ReadError> yea
[21:16:55] <Jymmm> ReadError: GRN == GND, BLK == HOT, WHT == NEUTRAL USA 120VAC
[21:17:32] <ReadError> thats trippy stuff, DC black is always ground
[21:17:32] <Jymmm> ReadError: Potentially , GRN and WHT can be "bonded" together at the panel in some cases.
[21:17:41] <ReadError> not sure why they decided to throw a curve ball at us
[21:18:04] <Jymmm> Edison vs Tesla
[21:18:28] <Jymmm> It was a HIGE rival way back when.
[21:18:28] <Jymmm> HUGE
[21:19:26] <Jymmm> Edison even ran a slander campaign saying that AC was dangerous and incinuating that DC was safer
[21:19:41] <ReadError> yea i saw they
[21:19:56] <ReadError> electrocuting animals
[21:19:56] <Jymmm> Edison PAID to have an elephant electricuted to prove AC was bad iirc
[21:20:03] <ReadError> telsa was a way cooler dude
[21:20:11] <ReadError> edison was a business man
[21:20:18] <ReadError> not really an inventor
[21:20:22] <ReadError> tesla was the true genius
[21:20:30] <Jymmm> Edison woulld buy out inventions
[21:20:52] <Jymmm> Yeah, Tesla was awesome
[21:20:52] <ReadError> yea
[21:21:06] <ReadError> did you see the oatmeal comic abou tesla ?
[21:21:07] <ReadError> sad stuff man
[21:21:15] <ReadError> he died drinking milk and eating crackers
[21:21:17] <ReadError> broke
[21:21:23] <ReadError> never had a gf/wife
[21:21:26] <Jymmm> no, I saw the wireless electricity
[21:21:49] <ReadError> http://theoatmeal.com/comics/tesla
[21:21:52] <ReadError> excellent read
[21:22:03] <Jymmm> Well, I geuss he got pleasure from his work.
[21:22:06] <ReadError> its kinda long
[21:22:11] <ReadError> but worth it
[21:22:37] <Valen> tesla was also something of a fruit loop
[21:22:47] <Valen> the line between genius and insanity is blury
[21:22:56] <Jymmm> You have to be a lil crazy to survie in this world
[21:23:19] <Jymmm> And who's to say that we are not the "crazy" ones.
[21:23:27] <Valen> I reckon DC will come back
[21:24:03] <ReadError> Jymmm, the oatmeal creator, got a bunch of donations to buy the tesla museum
[21:24:59] <ReadError> http://arstechnica.com/business/2012/10/with-the-oatmeals-help-nonprofit-buys-property-to-build-a-tesla-museum/
[21:25:54] <Valen> didn't he get in trouble for that or was that some other charity thing he did?
[21:26:36] <Jymmm> ReadError: nice
[21:26:38] <ReadError> i think i know what you are talking about but forget what it was
[21:26:44] <ReadError> rings a bell
[21:27:19] <ReadError> https://www.eff.org/press/releases/eff-will-represent-oatmeal-creator-fight-against-bizarre-lawsuit-targeting-critical
[21:27:37] <Valen> that was it
[21:30:23] <Valen> rofl
[21:30:23] <Valen> http://theoatmeal.com/blog/charity_money
[21:31:04] <Valen> american money looks soooo fake lol
[21:31:36] <ReadError> lol
[21:33:14] <Jymmm> Valen: Why, because it's not rainbow colored?
[21:33:51] <Valen> because it looks about as hard to fake as monopoly money
[21:34:00] <Valen> I have some american $ on my desk somewhere
[21:34:02] <ReadError> its actually pretty complex
[21:34:08] <ReadError> theres alot of stuff you cant see
[21:34:14] <Jymmm> Valen: It's the paper, not so much the printing
[21:34:19] <ReadError> i saw a show about it
[21:34:32] <Valen> yeah but if you can't see it its not going to help much
[21:34:40] <Jymmm> Valen: You can FEEL it
[21:34:50] <Valen> there we go, just pulled one out
[21:35:05] <Valen> I now have a fresh $1US in front of me
[21:35:22] <Jymmm> A $20 is better
[21:35:44] <Jymmm> $1 doesn't have as many security features.
[21:35:59] <Valen> our notes have the same stuff for all of them
[21:36:26] <Valen> transparent windows, micro printing etc
[21:36:43] <Valen> whatever plastic they are made out of feels pretty unique too
[21:36:57] <Valen> lots of colours
[21:37:37] <Valen> weren't people faking US$ with laser copiers when they came out?
[21:37:43] <Valen> well enough to pass i mean
[21:38:07] <Jymmm> They been forging a lot longer than that =)
[21:38:19] <Valen> yeah, but thats just really really easy
[21:38:31] <Jymmm> They were used in bill acceptors
[21:41:29] <ReadError> they just revamped them
[21:41:36] <ReadError> thats why we have "new" twenties
[21:42:10] <Valen> some people faked some $50's here, but they didn't have the transparent bit in them
[21:42:32] <Valen> they got busted pretty quick
[21:46:12] <tjb1> Anything stike you when you read the update in the middle?
https://www.dropbox.com/s/qnvvplot2al7t2s/Screen%20Shot%202013-02-14%20at%2010.31.55%20PM.png
[21:58:34] <AR_> not really tjb1
[21:58:37] <AR_> why
[22:00:25] <tjb1> Why would the computer shut off based on battery charge cycles?
[22:02:33] <AR_> because it believe no battery remains
[22:04:08] <tjb1> Charge cycles not battery percentage
[22:05:46] <AR_> yes
[22:05:51] <AR_> but over time it molests
[22:06:03] <tjb1> They are just trying to sell a new battery
[22:06:26] <AR_> hackers
[22:06:26] <AR_> ban apple
[22:07:29] <ReadError> you can flash battery firmware
[22:07:40] <AR_> you can burn battery in fire
[22:19:08] <Valen> macs could get viruses from batteries for a while
[22:19:47] <Valen> so i can totally see a firmware bug causing weirdness
[23:22:47] <Gene34> anyone here using "add-on" encoders like
http://www.usdigital.com/products/encoders/incremental/rotary/kit
[23:23:40] <cradek> my mill's spindle encoder is made from something like that. they work fine.
[23:23:51] <cradek> the main problem is they're not differential, so be careful
[23:24:31] <Gene34> please share more detail, I take it you can not use it to tap thread
[23:24:45] <cradek> yeah, I use it for that
[23:25:02] <Gene34> what would differential gain me?
[23:25:54] <cradek> noise immunity and high speed
[23:26:15] <cradek> here's the machine:
http://www.youtube.com/watch?v=9HLKXeWqTF0
[23:26:31] <cradek> the encoder is deep inside - I don't have pictures of the mounting but it was really hairy
[23:28:39] <Gene34> my system is about ready to crash... stay tuned
[23:30:20] <Gene34> well.... will have to watch later. any options to get full differential?
[23:30:54] <Valen> see if its warranted first
[23:31:01] <Valen> if its cheap and everything supports it do it
[23:31:05] <Valen> but its not manditory
[23:31:30] <Gene34> valen: have you been on here a couple years?
[23:31:40] <Valen> uhh i guess lol
[23:31:44] <Valen> dont make me feel old
[23:31:50] <Valen> i think i remember your nic
[23:31:58] <Gene34> your handle looks familar and as I recall you know your stuff
[23:32:39] * Valen blushes
[23:32:54] <Gene34> please provide me a quick 101. I just purchased a treadmill 3.8hp motor which I did see someone hook up to a gecko servo driver I believe
[23:33:14] <Valen> i gotta get going sorry but you have a minute or two
[23:34:04] <Gene34> it behaved like like a stepper, if I use it for a spindle motor... a non-differential should work fine based on cradek comments.
[23:34:38] <Gene34> work for taping effort. I could disconnect for high speed use during 99% of the time
[23:34:49] <Gene34> is my logic sound... or am I missing something
[23:35:28] <Valen> differential signaling is just a more robust interface
[23:35:30] <Gene34> I see a grizzly 704 cnc in my near future
[23:35:50] <Valen> uses 4 wires not 2
[23:35:54] <Valen> its good
[23:36:00] <Gene34> 4wires
[23:36:10] <Gene34> but no encoder
[23:36:20] <Valen> but if your stuff is shielded and theres not loads of electrical noise around its not required
[23:37:13] <Gene34> what rpm will an encoder of this type start to fall off
[23:37:25] <Valen> depends on its resolution and cable run and stuff
[23:37:28] <Valen> anyway gtg
[23:37:44] <Valen> work out the frequency you are trying to push down the wire
[23:37:49] <Gene34> thanks! enjoy! cradek, you still around
[23:43:20] <Gene34> brb
[23:51:13] <Gene34> cradek: you still around?
[23:52:11] * Gene34 slaps cradek around a bit with a large trout
[23:53:59] <Gene34> cradek: nice implementation of the encoder and I would like to hear more... much more
[23:56:11] <uw> anybody ever had anything galvanized from a professional galvanizer?
[23:56:53] <Gene34> ive done some plating myself with limited success
[23:57:14] <uw> do you use a zinc bath method or electroplating?
[23:57:53] <Gene34> electroplating
