#emc | Logs for 2011-04-13

[00:02:30] <JT-Shop> ok say goodnight Gracie
[00:02:50] <PCW> NG
[00:03:08] <PCW> ttgh
[00:03:52] <JT-Shop> ah well I'll listen to Ricky Nelson first...
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[00:08:53] <JT-Shop> goodnight all
[00:09:02] <atom1> gnite
[00:10:02] <Valen> atom1: use an xbox controller, your a child of the modern era ;-P
[00:10:39] <atom1> little do you know
[00:14:03] <Valen> http://www.youtube.com/watch?v=R_udQwy1hJk amature machine porn
[00:34:12] <jdhNC> http://www.youtube.com/watch?v=7NYODjx9o64 armature machine porn
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[01:27:06] <toastydeath> that is the damn coolest thing i've seen in quite some time
[01:32:48] <jdhNC> what is?
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[01:57:24] <bzzzz> amateur*
[01:57:45] <bzzzz> my sarcasm meter is broken
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[02:31:49] <elmo40> Valen: foot pegs? do you have a completed part?
[02:32:13] <Valen> making them for this guy http://www.demon50s.com/
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[02:53:24] <Valen> why you ask?
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[02:54:40] <cradek> that looks like a lot of mountings per part
[02:57:23] <Valen> 5 as i recall
[02:57:49] <Valen> I want to look at a) getting the rotary table running, then b) making them on that with 2 mountings
[02:57:59] <Valen> one to do the back, then hang on to that and do the rest
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[03:21:06] <cradek> 2 sure is better than 5
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[08:34:07] <Paragon39> I see it's the 240th Birthday of Richard Trevithick! He lived just up the road from me in Dartford. (not at the same time) ;-) http://en.wikipedia.org/wiki/Richard_Trevithick
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[09:07:45] <archivist> 240 seems an odd number to celebrate /me will be driving a steam engine in a few days at easter
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[10:20:50] <anonimasu> JT-Shop: are you there?
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[10:41:45] <anonimasu> does anyone have a clue about the torch height component?
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[11:01:04] <Paragon39> Hello All I think I have found the issue with my faulty speed controller it looks like it is the 1n4741 11v 1w zener. Now my question is could I get away with a 12v 1w or a 11v .5W zener. The 1n4741 appears non existant in the UK?
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[11:09:22] <Valen> depends what it does
[11:09:33] <awallin_> Paragon39: would need to see a circuit diagram to comment
[11:09:34] <Valen> you could put 2x 11v .5W ones in
[11:09:38] <Valen> more than likley
[11:09:49] <Valen> or a zeners PTC?
[11:11:21] <Paragon39> Heres the circuit diagram page 12 of the pdf D7 and D6 sorry for the poor quality! http://www.beel.ca/SMCM.pdf
[11:12:28] <Paragon39> D7 and D6 are located left half way down they connect to a wiper which then connect to the speed pot.
[11:12:51] <anonimasu> signal name thc.requested-vel must not be the same as pin did you omit signal name?
[11:13:43] <Valen> whats the drawing number?
[11:14:58] <Paragon39> Valen: BC1419K (it's the first scematic)
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[11:22:49] <Paragon39> Just tested D7 which appears OK but D6 is defiantly faulty.
[11:23:13] <jthornton> anonimasu: I'm here
[11:29:32] <anonimasu> jthornton: I am trying to get the thc component working
[11:29:49] <anonimasu> and I get this setp failed value motion.requested-vel invalid for float
[11:30:04] <alex_joni> http://www.youtube.com/watch_popup?v=KZrFC988Thc
[11:30:23] <anonimasu> I took the comments from the git
[11:30:25] <anonimasu> thc.requested-vel <= motion.requested-vel
[11:30:26] <anonimasu> thc.current-vel <= motion.current-vel
[11:30:47] <archivist> Paragon39, two 5.6v zeners inseries
[11:31:28] <anonimasu> and now i have no clue what to do
[11:32:09] <jthornton> are you getting a hal error syntax error?
[11:32:19] <anonimasu> hal file error whenI start emc
[11:32:33] <anonimasu> without thoose two lines it starts
[11:32:43] <jthornton> what is the exact line?
[11:32:49] <anonimasu> as i pasted
[11:33:07] <jthornton> no net, no signal name?
[11:33:23] <anonimasu> 152 it says
[11:33:48] <anonimasu> thc.requested-vel <= motion.requested-vel
[11:33:49] <anonimasu> that line
[11:34:37] <jthornton> you gotta read this ... http://www.linuxcnc.org/docview/html/hal_basic_hal.html
[11:35:26] <anonimasu> it's a comment of yours on the git that i copied and it dosent work...
[11:36:19] <jthornton> please read the 1.1.4 section in the link
[11:37:03] <Paragon39> I had a 15v zener at hand so stcuk it in to test to see if I got any voltage to the speed pot I used a variac to keep voltage down. Well I've got volts :-) now need to get 2x 5.6v / 2 x 11v zeners ... ebay... Thanks Guys for your input :-)
[11:37:12] <jthornton> the two pins must be "connected" by the net command
[11:37:40] <anonimasu> that was the first thing I did
[11:38:19] <archivist> Paragon39, there are plenty other ways to get that voltage too, if desparate I have 5.6v zeners here
[11:38:41] <anonimasu> jthornton: that's when I got the.requested-vel must not be the same as pin did you omit signal names
[11:39:14] <jthornton> signal names can be anything you want
[11:39:20] <archivist> Paragon39, http://www.part-number.co.uk/partsubindexE1DZ.html
[11:39:30] <jthornton> I only showed what pins needed to be connected
[11:40:28] <jthornton> thc.requested-vel <= motion.requested-vel
[11:40:31] <jthornton> is not valid
[11:40:44] <jthornton> net my-signal-name thc.requested-vel <= motion.requested-vel
[11:40:46] <jthornton> is valid
[11:41:45] <Paragon39> Thanks for the offer archivist and l the link. I am in no great hurry and should get a selection of zeners anyhow. :-)
[11:42:03] <anonimasu> I see
[11:42:13] <jthornton> :)
[11:42:28] <anonimasu> what are thoose signals for? in this case?
[11:43:30] <jthornton> the thc comp uses those to determine if you are close enough to requested velocity to allow corrections
[11:43:53] <anonimasu> I see
[11:44:07] <anonimasu> now, do I just link up the motion and test and see if it work?
[11:44:07] <jthornton> if your moving slower than requested by too much your voltage will not be correct and you can get incorrect adjusment
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[11:45:45] <jthornton> if you have all your connections as shown on the man page http://www.linuxcnc.org/docview/html/man/man9/thc.9.html
[11:46:12] <anonimasu> im unsure about the cmd ones a bit
[11:47:15] <jthornton> which ones are you unsure about?
[11:47:33] <jthornton> pos-cmd?
[11:47:37] <anonimasu> thc.pos-in and thc.pos-out
[11:47:57] <anonimasu> I connected in like net thc.pos-in <= axis.2.motor-pos-cmd
[11:48:34] <jthornton> you will need a signal name
[11:48:36] <anonimasu> and the other one like net thc.pos-out => hm2_hostmot_stuff.position-fb
[11:48:52] <anonimasu> it starts like that but fails when I try to move
[11:49:28] <jthornton> no signal name
[11:49:46] <jthornton> net signal-name pin
[11:50:25] <anonimasu> am i using the right stuff for what im doing or am i using ht wrong?
[11:51:08] <jthornton> did you get a copy of my config?
[11:51:13] <anonimasu> no
[11:51:21] <anonimasu> I couldnt find it online
[11:51:33] <jthornton> give me a couple of minutes
[11:53:30] <anonimasu> only other issue is that my spindle dosent turn on on a m-code
[11:56:57] <cpresser> anonimasu: did you set a spindle-speed != 0
[11:57:10] <anonimasu> haha :D
[11:57:12] <anonimasu> good point
[12:08:23] <anonimasu> it works...
[12:08:30] <anonimasu> now the issue is that joint 2 got ferror..
[12:09:12] <anonimasu> do I need to filter my thc input voltage
[12:13:53] <jthornton> anonimasu: http://gnipsel.com/shop/plasma/plasma.xhtml
[12:14:25] * jthornton goes to take the garbage out or I will miss the pickup
[12:16:42] <anonimasu> jthornton: why does my axis ferror?
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[12:24:22] <skunkworks> http://www.youtube.com/watch?v=2MmFpdaqJlc
[12:24:33] <skunkworks> that might be the biggest lathe conversion...
[12:25:43] <jthornton> anonimasu: I assume you don't have the Z connections correct
[12:28:05] <jthornton> skunkworks: neat!
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[12:57:51] <jthornton> anonimasu: I updated that web page a bit and now I'm off to the shower
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[13:30:03] <archivist> skunkworks look at that users other vid, note the toolpost screw top right
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[13:45:32] <JT-Shop> must be a bit of vibration on the tool post...
[13:53:17] <archivist> interesting chatter/chatter, work looks ok though
[13:53:32] <archivist> /vibration I meant
[13:53:33] <cradek> that looks like 60 rpm and 8? foot diameter - that's a really high surface speed
[13:53:43] <cradek> wonder what the tool is
[13:54:05] <cradek> oh wait, the diameter isn't nearly as big as I thought
[13:54:31] <cradek> 3' maybe
[13:54:48] <cradek> so 600 sfm or so, maybe
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[14:09:31] <JT-Shop> that's still kinda fast for steel?
[14:10:58] <cradek> yeah, lots of flood and I assume carbide
[14:11:10] <JT-Shop> I wonder if they are reconditioning the wheels?
[14:11:27] <skunkworks> I like the preview. quite the profiling passes
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[14:36:42] <archivist> JT-Shop, its a regular job on railway wheels to re profile
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[14:37:08] <JT-Shop> ah ok
[14:37:36] <archivist> and then re shrink on a tire or scrap
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[14:39:43] <archivist> one of the largest rail wheel lathes in the UK is at a museum in regular use for all the larger wheels on steam locos
[14:40:25] <JT-Shop> neat!
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[14:44:34] <archivist> their site seems to have no pics though
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[15:28:49] <Jymmm> SWPadnos: http://www.dealextreme.com/p/rigol-ds1052e-5-6-tft-lcd-50mhz-2-channel-digital-color-storage-oscilloscope-30573?utm_source=dx&utm_medium=albums&utm_content=sku30573&utm_campaign=labor_day
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[15:32:21] <Jymmm> He opens a brand new package. at 00:35, his hand goes off camera. I'm expecting a pool of blood dripping down... http://www.dealextreme.com/feedbacks/browseVideos.dx/sku.33599~id.13755
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[15:46:38] * JT-Shop jumps for joy, I get to make more than one of a part!!!
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[16:04:16] <Jymmm> JT-Shop: Sarcasim?
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[16:10:32] <JT-Shop> nope, I rarely get to make more than one copy of each part... today I get to make 4 of each part
[16:10:41] <Jymmm> cool
[16:11:00] <JT-Shop> yea, I set up work stops and all the cool stuff
[16:11:16] <Jymmm> heh
[16:11:38] <Jymmm> If you usually make only one offs, do you charge a premium for that?
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[16:12:09] <JT-Shop> I rarely make parts for a customer only whole machines and yes we charge a premium :)
[16:12:25] <Jymmm> k
[16:15:08] <Jymmm> Anyone ( jepler, cradek, JT-Shop) up for a drawing/cad challenge by chance?
[16:15:27] <cradek> not enough information to say
[16:16:03] <Jymmm> Figure 1: http://i52.tinypic.com/ng5y6t.jpg
[16:16:16] <Jymmm> Figure 2: http://i55.tinypic.com/raav6x.jpg
[16:16:25] <Jymmm> http://codepad.org/WeMHupwc
[16:17:25] <Jymmm> Note: ...or a 10x10 matrix of semi-overlapping rings...
[16:18:06] <cradek> yeah, that makes it harder
[16:19:01] <Jymmm> Well, even 'K' is a PITA as well.
[16:19:02] <cradek> I would write parametric gcode (or more likely, python that outputs gcode) to do K. but having overlaps in 2D makes more complex shapes. I would have to see a picture of that case because it's not fully specified here
[16:19:30] <Jymmm> cradek: Fig 1, 'K'
[16:19:32] <cradek> I don't have any idea how to use cam or image manipulation programs to generate these vectors
[16:19:52] <Jymmm> I don't need CAM/gcode, just the vector file
[16:19:54] <cradek> yes I understand K but I think you are saying you'd have right-to-left overlaps somehow too
[16:20:18] <cradek> I don't know what those overlaps would look like
[16:20:49] <Jymmm> cradek: Same as K, http://i52.tinypic.com/308ljyr.jpg
[16:21:13] <Jymmm> (sorta)
[16:21:55] <cradek> I don't understand the algorithm used to pick what overlaps what from that picture
[16:22:07] <cradek> but either way, I don't think I'm going to have any useful advice for you.
[16:22:39] <Jymmm> Yeah, like I said, even K is a PITA, surprisingly for such a simple thing
[16:24:03] <Jymmm> I ended up taking 4 hours to manually cleanup the drawing. No other choice at that time.
[16:24:11] <JT-Shop> seems simple enough with any cad program and the trim function
[16:24:26] <jdhNC> circle, offset, array, trim
[16:24:33] <JT-Shop> yea
[16:24:49] <Jymmm> JT-Shop: Look at 'K' closely, the inner strokes don't overlap
[16:25:24] <Jymmm> JT-Shop: J is the best that I've been able to accomplish with most drawing tools that honor objects being over/under each other.
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[16:25:49] <Jymmm> (including TRIM)
[16:26:41] <Jymmm> This is totally AWESOME... http://www.youtube.com/watch?v=WYcqJ5HdxA4&feature=player_embedded
[16:26:51] <Jymmm> square gears that really work
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[16:27:19] <JT-Shop> I don't understand what you mean by "the inner strokes don't overlap"
[16:27:48] <Jymmm> JT-Shop: look at J and K
[16:29:25] <JT-Shop> ok
[16:30:00] <cradek> at least autocad can do all of that (manually, granted) with trim
[16:30:14] <JT-Shop> or qcad
[16:30:28] <cradek> but it's the very definition of tedium
[16:30:32] <JT-Shop> you could do a lisp I assume to do it in acad
[16:30:48] <cradek> not very easily
[16:30:49] <Jymmm> cradek: I can do it manually, but it takes four hours when you get to a 8x16 matrix of rings.
[16:31:00] <cradek> Jymmm: I understand totally
[16:31:08] <JT-Shop> I would just make one inner and one outer and array them out
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[16:31:31] <JT-Shop> with an array copy
[16:31:44] <cradek> JT-Shop: did you see http://i52.tinypic.com/308ljyr.jpg
[16:31:50] <cradek> there is no pattern that can be copied, as far as I can tell
[16:32:04] <archivist> similar problem to drawing a smith chart in postscript
[16:33:20] <archivist> anyway read graphics gems books to get an algo to draw that
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[16:34:06] <JT-Shop> I guess if it is large enough some pattern has to appear unless it is totally random
[16:34:20] <cradek> the sample looks random to me
[16:34:30] <cradek> I don't understand how the 2D version should look
[16:34:42] <JT-Shop> me neither now
[16:34:45] <cradek> once you know, you can generate it programmatically
[16:34:55] <cradek> or by copying stuff like JT-Shop says
[16:35:42] <Jymmm> But, it takes a lot of cleanup to get to the point of copying
[16:36:10] <psha> is not it placing lot of circles with random Z-order and then making projection?
[16:36:22] <cradek> if this is for gcode, you can make good use of EMC's R format arcs. positive and negative R arcs with endpoints that are the intersections will easily give you the arcs you need
[16:36:50] <Jymmm> cradek: nd the distributed spacing between them?
[16:36:55] <Jymmm> cradek: And the distributed spacing between them?
[16:37:09] <cradek> I'm talking specifically about K, the 1D version
[16:37:19] <cradek> the 2D version I don't understand
[16:37:32] <jdhNC> http://www.artichoke.org/p/rings.pdf
[16:37:40] <jdhNC> anywhere near close, or am I missing something?
[16:38:20] <Jymmm> jdhNC: those are symetrical in pattern, see http://i52.tinypic.com/308ljyr.jpg
[16:38:48] <cradek> we don't understand what pattern you want
[16:38:58] <cradek> that picture does not adequately describe it
[16:39:18] <jdhNC> I saw that, but have no idea what it is... that weird void in the not quite upper not quite left
[16:39:28] <archivist> ah just random front, the pattern is regular
[16:39:48] <cradek> jdhNC: I think that's the "bottom" circle which is completely obscured
[16:39:53] <archivist> which clips which is random
[16:39:56] <Jymmm> The rings are overlapped, some under, some over
[16:39:58] <cradek> I don't know what rule puts it there
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[16:43:15] <cradek> reminds me of a watch decoration pattern/technique called spotting. usually it's done in a circular pattern so the "bottom" or "top" circle is in the center
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[16:43:30] <cradek> I'm having trouble finding a good picture of it
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[16:44:51] <Jymmm> JT-Shop: Since you can't see video/Audio.... http://www.lisaboyer.com/Claytonsite/weirdgears1.htm
[16:46:55] <JT-Shop> I have speakers on this computer :)
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[16:56:33] <Paragon39> Hi, I have a fuse that states T3,15A 250V. What does the T3 designate? Slow blow / Anti Surge / Fast blow?
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[16:58:10] <archivist> time delay
[16:58:23] <archivist> slow/anti surge
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[16:59:14] <Paragon39> archivist: Thought as much justed need to confirm before I buy online! Thanks
[17:00:26] <archivist> old one has either a spring or had a blob on the wire to provide some thermal mass
[17:00:41] <cradek> http://www.thefusewarehouse.com/pages/product_markings.htm
[17:01:21] <cradek> it's not T3
[17:01:28] <cradek> it's T ... 3,15A
[17:02:16] <Paragon39> cradek: Yep your right not 15A ... !
[17:02:22] <archivist> 3.15A
[17:02:33] <cradek> right
[17:02:37] <Paragon39> 3.15A ...
[17:02:39] <archivist> euros using a , instead of .
[17:02:43] <cradek> took me a lot of searching to find that page
[17:04:49] <Paragon39> I presumed it was 15A, at a glance... 3.15A is a little unusual. Well not an every day fuse. Reminder too self!
[17:05:18] <archivist> 3.15 is very common value in electronics
[17:06:45] <cradek> wonder why that is...
[17:07:23] <Jymmm> I like blue. red. and green, there is nothing like consistency with EU in using punctuation. but I blame the Germans,
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[17:08:00] <Paragon39> What threw me was that this fuse came out of the 3 prong male kettle socket that was already in-place from the old starmill controller.
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[17:09:20] <Jymmm> Please tell me EU doesn't write like that?
[17:09:48] <Jymmm> ...using commas to end a sentence
[17:09:57] <cpresser> 'T' stands for 'Träge' which means realy slow
[17:10:07] <Paragon39> Not normally,
[17:10:20] <cpresser> Jymmm: no, points at the end of a sentence.
[17:10:37] <Jymmm> cradek: 2nd one http://www.lisaboyer.com/Claytonsite/otherdesigns.htm
[17:10:45] <Jymmm> cpresser: =)
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[17:12:33] * cpresser already has plans for 100€ in his cart.. but ill kick a few things out. need to choose only one clock to build for starters
[17:13:09] <Jymmm> cpresser: Sorry, I wasn't trying to upsell those to anyone, just sharing
[17:13:22] <Jymmm> I do like the weird shaped gears though
[17:13:32] <cpresser> i am in love with them :)
[17:14:03] <cpresser> unfortunately no CAD-Plans :/
[17:14:38] <Jymmm> cpresser: how to make them... http://www.youtube.com/watch?v=3LdlSAN1yks
[17:15:14] <Paragon39> Jymmm: The way the kids / young adults write text messages over here (UK) is complete gibberish. bn = been ur=your phne=phone hav=have thnk=think. Is it the same over the pond?
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[17:15:56] <Jymmm> Paragon39: Yes, I call it AOLbonics
[17:16:12] <Paragon39> LOl
[17:16:18] <Jymmm> Paragon39: L8r = later
[17:17:12] <Jymmm> http://en.wiktionary.org/wiki/aolbonics
[17:17:36] <Jymmm> http://www.urbandictionary.com/define.php?term=aolbonics
[17:17:59] <Paragon39> :-)... BTW the only reason I know the above was due to receiving a text from some school kid by mistake. I had to ask my nephew to decipher it which he did without a thought!
[17:20:42] <Jymmm> Paragon39: Some dumbass kid turned in an english report using aolbonics. Wanna guess what grade he got?
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[17:22:18] <Paragon39> aolbonics = Not for me except maybe LOL does LOL count? What's the point of shortening phone to phne or think to thnk I mean it's one god dam letter right! Oh I bet he got graded for his merit and of course it would be wrong to judge him right in this pc climate of madness?
[17:22:48] <Jymmm> the lil rat bastard got an F
[17:23:32] <Paragon39> LOL an F they had to give him something ... I'm cracking up :-)
[17:23:34] <Jymmm> Paragon39: Don't confuse acronyms with aolbonics, not the same thing. Like IIRC, AFAIK, etc
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[17:24:15] <Paragon39> Jymmm: The future worries me mate!
[17:25:08] <Jymmm> Paragon39: hey,shutgun and lots of ammo help if evolution just doesn't wipe them out of the species pool in a timely manner.
[17:25:46] <Jymmm> Paragon39: See; the Zombie Handbook
[17:26:29] <Jymmm> Paragon39: err... See: The Zombie Survival Handbook
[17:26:31] <Paragon39> That's why they will never allow real guns over here in the UK! We would have a field day!
[17:26:36] <JT-Shop> in the second grade I learned that the plural of mouse was not mices
[17:27:10] <Jymmm> http://www.amazon.com/Zombie-Survival-Guide-Complete-Protection/dp/1400049628
[17:27:18] <JT-Shop> after that I no longer thought cartoons were real or correct
[17:27:28] <Jymmm> JT-Shop: Silly, the plural of mouse is mooses
[17:28:52] <Jymmm> Fsckin Amazon, to sell their kindle, they now offer a $25 cheaper version, with screensaver advertising on it
[17:29:09] <Jymmm> I'd pay the $25 instead
[17:30:31] <Paragon39> Jymmm: The Illiterate Chav Kid Survival (Zombie) Handbook : My weapon of choice = Samurai Katana followed closely by an M1 carbine! ;-)
[17:30:52] <Jymmm> Nah, shotgun works fine =)
[17:31:14] <Jymmm> Though, I do have a machete too
[17:31:28] <JT-Shop> yuk an M1 Carbine... that only pisses them off
[17:31:37] <JT-Shop> little play bullets
[17:32:01] <JT-Shop> M1 Garand is my favorite rifle
[17:32:18] <JT-Shop> balanced well shoots great packs a punch when it hits
[17:33:34] <Paragon39> Jymmm: JT-Shop: the only guys that have access to fire power over are the crooks!
[17:33:57] <Jymmm> sad
[17:34:16] <Jymmm> JT-Shop: http://www.redjacketfirearms.com/firearms/firearms.html
[17:35:03] <Jymmm> JT-Shop: short barrel shotgun http://www.redjacketfirearms.com/images/8inshottyR.jpg
[17:35:21] <Paragon39> Oh and the Illiterate Chav Kids... God forbid if one leaves a ladder in the yard and a crook decides to use and by doing so falls off, he could sue me for injury. It's happened here for real!
[17:36:24] <JT-Shop> that sucks Paragon39
[17:36:34] <Jymmm> One burgaler locked himself in garage for a week when breaking into a home. He sued and won
[17:36:47] <Jymmm> had to eat dogfood too
[17:36:58] <JT-Shop> that's why you don't let them out once they are caught
[17:37:12] <Jymmm> They were gone on vacation for a week
[17:37:13] <Paragon39> LOL :-)
[17:38:45] <Jymmm> http://club.myce.com/f1/actual-lawsuits-you-will-laugh-your-off-56459/
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[17:43:45] <Paragon39> Jymmm: I'll take a look at that link a little later. Looks interesting from first glance. :-)
[17:44:14] <Paragon39> Right better order those 3.15A fuses!
[17:46:29] <Jymmm> No, 3,15A fuses
[17:46:38] <Jymmm> ;)
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[18:18:00] <andypugh> I now see why those capacitors are so expensive if you pay full price. https://picasaweb.google.com/lh/photo/Uic01ES5_7svBiSm1Wp8gw?feat=directlink
[18:18:43] <andypugh> And £20 for the three, brand new, is looking like a bargain.
[18:21:55] <JT-Shop> I need 6 but blue and smaller :)
[18:23:21] <atom1> color coordinated?
[18:24:06] <JT-Shop> that's what the old tired ones are LOL
[18:24:38] <atom1> ac or dc?
[18:24:41] <atom1> what size?
[18:24:56] <atom1> check the local motor shop for big caps
[18:25:17] <JT-Shop> I have to take the cover off to see... it is the main power supply for my Discovery 308
[18:25:57] <atom1> i'm sure digikey would love to sell you some
[18:26:28] <JT-Shop> I'm sure they would
[18:30:09] <andypugh> http://www2.mouser.com:80/ProductDetail/Kemet/PEH200YV4330MU2/?qs=sGAEpiMZZMtZ1n0r9vR22WsHOALhvbhWrosMYqhRtHE%3d
[18:30:39] <andypugh> I am feeling quite smug.
[18:31:16] <Connor> OKay, so, how many people would be interested in a open source community based design for a pendant.. With 60mm Jog wheel, E-Stop and lcd ??
[18:32:40] <Jymmm> Does it have a neuro interface?
[18:32:54] <Connor> umm, no.
[18:32:54] <andypugh> Have you tried CNCzone? (Just to spread the net wider)
[18:33:09] <atom1> http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=338-1764-ND
[18:33:14] <atom1> how many do you want??
[18:33:17] <andypugh> I like the idea, but don't have a personal interest, if you see my point.
[18:33:28] <Connor> Yea.. I've not asked..
[18:33:55] <andypugh> atom1: Darn! I prefer the blue ones.
[18:33:57] <Connor> I find alot of people on CNCzone like Mach3
[18:33:57] <atom1> i'm curiously interested
[18:34:00] <Jymmm> atom1: That's crap, this is MUCH better... http://i54.tinypic.com/zloxg.jpg
[18:34:25] <atom1> i've seen those dozens of times
[18:34:36] <atom1> they failed to open the one inside to show the one inside it :D
[18:35:44] <andypugh> Russian Capactitors.
[18:36:28] <atom1> if you need big caps, i'd call a motor shop
[18:36:34] <atom1> or electric supply house
[18:36:49] <andypugh> (That was a Matryoshka comment, not a dig at the Russian electronics industry)
[18:37:40] <atom1> i had a box full of em and tossed em out because i figured i'd never use em
[18:38:00] <atom1> various sizes
[18:38:27] <atom1> unless i stored the box somewhere and forgot the hiding place
[18:39:46] <fragalot> https://picasaweb.google.com/lh/photo/UaxB7LosavFxS1nSNwxZXt7KzMzD-b3qD3UJNytHyg0?feat=directlink <= well that sucks!
[18:39:56] <fragalot> :<
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[18:40:50] <andypugh> fragalot: What is that?
[18:40:56] <andypugh> Half-shaft?
[18:41:16] <fragalot> andypugh: That's the drive shaft for the sideways motion of a lathe
[18:41:29] <fragalot> and a 19mm wrench (yes, that axle is HUGE)
[18:41:35] <atom1> 2 fractures
[18:41:37] <fragalot> but so is the machine
[18:41:41] <atom1> the original was the big one
[18:42:00] <andypugh> It seems that the shaft is not actually huge _enough_
[18:42:12] <fragalot> andypugh: so it seems
[18:42:47] <fragalot> this is what happens if you replace the power supply cables with bigger ones on an old lathe :P
[18:43:08] <andypugh> Using my skill and judgement I feel that the crack initiated at the 11 O'clock position, is there a keyway there?
[18:43:41] <fragalot> it's a smooth shaft
[18:43:44] <fragalot> well.. it was.
[18:44:00] <fragalot> could have been caused by the cold + shock of starting
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[18:44:30] <andypugh> No. Despite common belief, steel does not get weaker when cold.
[18:44:46] <fragalot> andypugh: tolerances change though
[18:44:46] <andypugh> And that crack has been growing for years.
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[18:45:20] <andypugh> Aye, that's true.
[18:45:47] <fragalot> with the old power supply cable it always started very gently
[18:45:53] <fragalot> with the new ones.. not so much
[18:48:15] <fragalot> andypugh: Also - abt the "steel doesn't get weaker when cold" -- tell the engineers over in alaska that
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[18:48:18] <fragalot> :P
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[18:49:35] <JT-Shop> Titanic...
[18:50:10] <fragalot> JT-Shop: titanic used rubbish steel
[18:50:22] <JT-Shop> yep
[18:50:33] <andypugh> Steel becomes a lot less plastic at lower temperatures (though we are talking about -40). You still need to apply a force which would have plastically deformed the material at normal temperatures though. My point is that the yield and modulus don't change.
[18:51:23] <fragalot> let's just say that the machine in question here doesn't have a soft start.. Just on/off :P
[18:55:40] <archivist> fragalot, does that shaft go through 3 or more bearings
[18:56:08] <fragalot> 4 iirc (I didn't disassemble it)
[18:56:27] <archivist> check alignment then
[18:56:37] <fragalot> will do
[18:56:56] <archivist> that does not look like a torsional fracture to me
[18:57:26] <archivist> looks glassy and brittle
[18:57:42] <fragalot> yeah i'm not quite sure what to make of that fracture either
[18:58:15] <archivist> and possibly shiny where rubbing against itself because its been failing for a time
[18:58:54] <fragalot> shiny bits are just from overexposing with the sunlight reflecting off
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[18:59:40] <archivist> picassa drops the resolution so cant see that well :(
[18:59:51] <fragalot> Yeah sorry about that
[19:00:06] <fragalot> can't find my usb cable & usb connection with my phone doesn't appear to work for some odd reason
[19:00:11] * fragalot installs dropbox on it again
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[19:05:05] <andypugh> It's a bending fatigue failure.
[19:05:21] <andypugh> So yes, checking bearing alignment seems worthwhile.
[19:07:57] <archivist> aligning shafts is fun!...or can be
[19:08:13] <fragalot> hehe
[19:08:51] <fragalot> I'm more worried about my lil' benchtop mill with it's play on the Z axis bearings.. (the broken lathe isn't mine.. I'm just the one that hit start when it broke >.>)
[19:09:13] <archivist> last I did had a 3 ton flywheel hanging on the crankshaft had to hand bar it measure, adjust, rinse repeat
[19:09:14] <fragalot> but should be able to make a new axle & new gear so it's really just an inconvenience
[19:09:16] <andypugh> I used to spend my life looking at cracks: http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=ASMECP002002019485000039000001&idtype=cvips&gifs=yes&ref=no
[19:09:43] <fragalot> archivist: guess how much the chuck on that machine weighs...
[19:09:52] <archivist> enough :)
[19:09:55] <fragalot> :P
[19:10:13] <fragalot> giving that that axle is only for the tool holder sideways feed
[19:10:26] <archivist> andypugh, stress corrosin cracking being the other fun cracking method
[19:10:26] <andypugh> fragalot: Just bore out the old gear and shrink it on to a new shaft.
[19:10:42] <fragalot> andypugh: no, it broke off a tooth
[19:10:46] <andypugh> Aye, that was a big mechanism in the ball mills I linked to.
[19:10:58] <andypugh> fragalot: Weld it back on?
[19:11:52] <fragalot> don't know what the integrity of the other teeth is so both me & the owner would rather replace the whole thing
[19:12:02] <andypugh> (OK, so I agree that at this point a new gear makes sense)
[19:12:14] <fragalot> :P
[19:12:37] <andypugh> I don't know how to cut bevels though, do you?
[19:12:46] <fragalot> nope - but I know someone that does
[19:13:16] <fragalot> well, 2 people but one is far too busy and won't do it unless if I'd want 200 of them
[19:13:57] <andypugh> It looks easy enough :-) http://www.youtube.com/watch?v=IdeiFjr2BEY
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[19:14:23] <fragalot> andypugh: it's a curved bevel gear
[19:14:50] <andypugh> You need Mach3 and Geckos then :-) http://www.youtube.com/watch?v=RV8Dq6mslnE&NR=1&feature=fvwp
[19:15:00] <fragalot> http://www.youtube.com/watch?v=8pXtSWIJ7Ac&feature=related
[19:15:10] <fragalot> why mach3? o.O
[19:16:47] <andypugh> That's what the video uses. It's an interesting approach.
[19:16:48] <archivist> because he likes windaz and mach3 , he is local to me fragalot
[19:17:33] <cradek> I bet the machine in the second video makes a better gear
[19:17:42] <fragalot> andypugh: he used vectric cut3D to make the gear
[19:17:46] <fragalot> I only have Cut2D :p
[19:18:00] <fragalot> couldn't quite afford the 3D version >.>
[19:18:07] <andypugh> That second machine is just wild.
[19:18:24] <fragalot> cradek: I'm inclined to agree :P
[19:18:34] <archivist> I think we can write gcode to do it on emc and 5 axis
[19:18:53] <fragalot> I don't see why not
[19:18:57] <andypugh> I wonder if you could do the same with a 5-axis mill and extra synchronous head?
[19:19:05] <fragalot> I don't see why not
[19:19:06] <fragalot> :P
[19:19:42] <fragalot> I think you could do it on a 5 axis mill full stop.. Possibly even on a 4 axis
[19:19:52] <archivist> cutter is a bit special on the gleason
[19:20:23] <archivist> need 5 or the ability to lock the 4th at an angle
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[19:22:09] <fragalot> I'd imagine a decent 4 axis to be able to do so
[19:22:40] <fragalot> archivist: http://www.youtube.com/watch?v=Uu8vsIt9dmU&NR=1 xD
[19:25:54] <archivist> thats generating the form too by the look of it,
[19:27:02] <fragalot> might take a few days :P
[19:27:16] <archivist> verbal comment at the end, 3 months
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[19:27:22] <fragalot> O.O
[19:27:28] * fragalot had audio disabled
[19:27:34] <fragalot> seriously, 3 months?
[19:27:44] <fragalot> that's going to be one expensive gear..
[19:28:22] <archivist> yes the comment is during the camera shake at the end
[19:29:51] <archivist> I did write a gear generation with slitting saw gcode for a giggle one night but have never used it in anger yet
[19:30:39] <archivist> or single tooth rack form
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[19:32:02] <fragalot> lol
[19:32:15] <fragalot> I've made lil' wooden gears for a toy robot if that counts >.>
[19:32:32] <fragalot> (simple side-view DXF profile cut)
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[19:35:17] <archivist> the axis back plot really does not show whats going on though
[19:35:32] <JT-Shop> the forum is coming up on 9000 messages and 3000 users shortly
[19:35:41] <fragalot> archivist: xD
[19:36:23] <JT-Shop> my 1000 replies to piasdom might have something to do with the message count
[19:36:30] <fragalot> lol
[19:36:41] <archivist> heh
[19:37:01] <JT-Shop> got to give him credit he keeps trying till he gets it to work...
[19:39:27] <fragalot> speaking of which
[19:39:34] <fragalot> need to get new bearings for the copy machine
[19:40:07] <fragalot> there have got to be hundreds of joints, tiny axles and bearings in that copy mill >.>
[19:40:28] <fragalot> how it doesn't have a mile of play on it is beyond me
[19:42:18] <archivist> http://www.archivist.info/cnc/generate_gear_n_teeth.ngc
[19:43:40] <archivist> only 4 axis used there
[19:44:57] <archivist> can adjust the quality of the generation
[19:49:20] <atom1> adjust pi
[19:50:10] <fragalot> hehe
[19:50:27] <jdhNC> make indiana gears with 3.0
[19:50:33] <atom1> 3.1415926 instead of 3.14596
[19:51:23] <Jymmm> http://3.141592653589793238462643383279502884197169399375105820974944592.com/
[19:52:19] <jdhNC> I've always considered 3.14159265358979323846264338327950 sufficiently close
[19:52:34] <atom1> .1459 could produce errors over .14159
[19:52:57] <atom1> you can get as picky as you like from there on
[19:53:28] <archivist> Ive adjusted pi a bit
[19:53:51] * atom1 wants a piece of pi
[19:53:58] <jdhNC> some of my circles have 361 degrees
[19:53:59] <fragalot> jdhNC: that. domain-name. is. brilliant.
[19:54:51] <jdhNC> that was from the other j, but... yeah, pretty cool.
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[20:02:42] <Jymmm> I found the million digits, take a while to load
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[20:16:43] <bzzzz> damn it
[20:16:45] <bzzzz> where is it?!
[20:17:24] <archivist> over there ------------>
[20:17:41] bzzzz is now known as ________________
[20:17:46] ________________ is now known as __________bz
[20:17:52] <__________bz> i...can't...reach...it
[20:20:44] <andypugh> That 3-month gear is just madness.
[20:20:51] <andypugh> Why? I wonder.
[20:21:15] <archivist> too stupid to rough out the gap first
[20:21:36] <andypugh> And why not hob it?
[20:21:46] <__________bz> yes! i found it!
[20:21:52] __________bz is now known as bzzzz
[20:22:02] <archivist> because its a double helical
[20:22:50] <cradek> using the bottom .010 of a cutter to cut all that away seems loony
[20:23:38] <andypugh> They seem to have no trouble hobbing double-helicals. http://www-mdp.eng.cam.ac.uk/web/library/enginfo/textbooks_dvd_only/DAN/gears/photos/BrownHobbing.jpg
[20:24:01] <andypugh> or a smaller, coarser one: http://www-mdp.eng.cam.ac.uk/web/library/enginfo/textbooks_dvd_only/DAN/gears/photos/GearWorksDoubleHelical.jpg
[20:24:04] <archivist> they really should gash it before form cutting
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[20:41:42] <aggrav8d> hi, emc. I've been using cambam to put together my designs. I've noticed it has some real limitations. I'd be hard pressed to do something like http://www.youtube.com/watch?v=i_skFf2RlSU . Should I be using the profile tool and a 3rd party 3d modelling software? greyscale heightmap? Some other solution?
[20:42:34] <cradek> try the image-to-gcode included in the emc2 distribution
[20:42:52] <cradek> (... which uses a greyscale heightmap)
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[20:45:23] <fragalot> that's a bit of a funky path it follows to pocket that out
[20:46:03] <fragalot> aggrav8d: if you don't mind paying for cnc software, for things like that I really like the software made by Vectric
[20:47:36] <archivist> people in Vectric are ex another well known cam company, cambam is a little one man co
[20:48:27] <fragalot> I've bought Vectric's Cut2D for simple things and i'm really happy with it sofar
[20:48:28] <fragalot> :)
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[21:06:09] <aggrav8d> fragalot - i don't mind if i can recoup my investment.
[21:08:43] <fragalot> aggrav8d: check out their demo's & see for yourself if it's worth it
[21:09:07] <jdhNC> I also paid for cut2d, it's very nice in its simplicity
[21:10:23] <fragalot> jdhNC: Exactly :P
[21:10:37] <JT-Shop> should make a video of me cutting a wooden dowel in the lathe and put it on youtube?
[21:10:50] <fragalot> JT-Shop: ofcourse
[21:11:14] * JT-Shop ponders what music to play... Kraftwerk perhaps
[21:11:53] <sarariman_seb_> http://www.youtube.com/watch?v=QgS252XT_Ts
[21:12:22] <sarariman_seb_> and you should wear a dress like that
[21:12:46] <fragalot> JT-Shop: the music of the machine alone \o£/
[21:13:12] <fragalot> (write your g-code in such a way that the servo's make a noise like that craftwerk tune)
[21:15:22] <JT-Shop> my servos are quiet as a mouse
[21:15:39] <fragalot> well do something about that!
[21:15:40] <fragalot> :P
[21:16:10] <sarariman_seb_> wow, the accordion cover is even better: http://www.youtube.com/watch?v=1pSe4lRVLc0&feature=watch_response
[21:16:21] <jdhNC> I wish cut2d would allow you to just draw a single line and cut it
[21:16:58] <fragalot> jdhNC: I can't agree more on that :<
[21:17:14] <jdhNC> text is kind of a pain
[21:17:26] <fragalot> yup
[21:17:30] <fragalot> I have yet to find something decent for text engraving :/
[21:17:38] <fragalot> well, and affordable
[21:17:47] <andypugh> V-carve looks nice
[21:17:49] <sarariman_seb_> truetype tracer? inkscape?
[21:18:22] <fragalot> sarariman_seb_: ttt doesn't do single line fonts, inkscape method doesn't appear to actually.. work.
[21:18:42] <jdhNC> I've found I can engrave with cut2d ok if I lie about depths
[21:18:53] <fragalot> jdhNC: oh?
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[21:19:15] <fragalot> I can engrave nicely with it, just not single lines..
[21:19:26] <fragalot> which is a bit meh when it comes to.. well.. lines :P
[21:19:42] <jdhNC> right, I had to pick a TTfont and have it engrave a lot more than I wanted (which was single line fonts)
[21:20:27] <fragalot> Ah like that
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[21:20:38] <jdhNC> I did get something to work via autocad stick fonts once, but I haven't been able to do it again.
[21:20:49] <fragalot> I generally lie about my tool width instead :/
[21:20:59] <fragalot> really? i've tried to do that for ages and couldn't get it to work
[21:21:17] <fragalot> kept complaining about non-closed vectors
[21:22:05] <jdhNC> yeah, some combination of exploding the text in autocad and getting them to close after importing.
[21:22:26] <jdhNC> but, I haven't had any luck doing it again.
[21:22:26] <fragalot> :/
[21:23:00] <fragalot> tbf the single line fonts in autocad don't look very nice anyway :P
[21:23:42] <fragalot> I've found that text engraving with other fonts can work if you design the text as a pcb trace in eagle & tell it to engrave along center line when you export via pcb2gcode (or similar)
[21:23:44] <jdhNC> no, but they were actually want I wanted (panel lables)
[21:23:58] <cradek> the hershey fonts are single-line, adequately readable, and are in an easy format to convert to gcode etc
[21:24:18] <fragalot> cradek: I've tried doing that via inkscape but always got errors while trying
[21:24:20] <cradek> AXIS uses the single-line hershey font to draw its extents/limits in the preview
[21:24:24] <fragalot> gave up after 2 days
[21:24:26] <fragalot> :P
[21:24:41] <cradek> I don't know anything about inkscape, sorry.
[21:24:58] <fragalot> cradek: What would you use to convert hershey to gcode then?
[21:25:01] <cradek> I meant that you could do the conversion programmatically.
[21:25:17] <cradek> any old language
[21:25:31] <fragalot> Oh you mean write something from scratch to do it
[21:25:33] <cradek> no application is going to be particularly helpful, I think
[21:26:05] <jdhNC> we have an engraver at work that does it well
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[21:28:33] <cradek> it would be awesome if a magic comment in gcode could give text motion
[21:28:41] <cradek> NB: I am not volunteering to do this
[21:28:52] <fragalot> xD
[21:29:03] * fragalot volunteers cradek for this
[21:32:22] <fragalot> who here was it that said picasa downsized images?
[21:32:28] <fragalot> just click download & it gives you the full size:P
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[22:36:54] <Connor_CNC> Hey guys, I'm trying to get my home/end stops setup correctly.. I'm using one of the end stops shared with home.. My travel on my machine is a little more than 12 1/8" I want to set it up so I have exactly 12"
[22:37:27] <Connor_CNC> I have it working seeking the home.. and all and it works.. but, I don't have something right.. when I go to 0" it always trips the end stop.
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[22:40:21] <Connor_CNC> I think I need to tweak the home offset ??
[22:40:50] <sarariman_seb_> Connor_CNC: sounds like your config incorrectly places your limit switch is inside your valid travel
[22:41:22] <sarariman_seb_> you need to tell it that the home switch is at -0.001
[22:42:04] <sarariman_seb_> i assume you are using HOME_IGNORE_LIMITS
[22:42:10] <Connor_CNC> yes.
[22:42:28] <andypugh> -0.125 sounds like it would solve two problems at once.
[22:42:32] <sarariman_seb_> set HOME_OFFSET to -0.001 and HOME to 0.000, and see if that doesnt fix it
[22:42:42] <sarariman_seb_> btw I'm reading this document: http://linuxcnc.org/docs/2.5/html/config/ini_homing.html
[22:47:28] <Connor_CNC> what about it throwing up Exceeded soft limit during the homing process ?
[22:47:39] <sarariman_seb_> what about it?
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[22:48:09] <Connor_CNC> Well.. It throws that up sometimes and sometimes it doesn't.. Do I need to worry about it? Is their a way to keep it from saying that?
[22:48:15] <sarariman_seb_> soft limits dont exist until you're homed, as i understand it
[22:50:06] <sarariman_seb_> i'm wrong
[22:50:24] <sarariman_seb_> [AXIS_n]MIN_LIMIT and MAX_LIMIT give the coordinates of the soft limits
[22:50:41] <sarariman_seb_> but i'd think those are ignored when homing
[22:51:22] <Connor_CNC> Yea, If I set the MIN_LIMIT in the negatives, then the machine will end up hitting the end stop...
[22:52:28] <Connor_CNC> One of my input pins trips while Moving my axis back and forth.. I'm not sure what's causing it..
[22:53:17] <andypugh> Electrical noise.
[22:53:21] <Connor_CNC> It also wasn't responding very well to being pulled low via a 7414 chip... I'm thinking I may have a bad opto or loose connection or something.. only way I could get it to pull low was direct connect to ground.. So I used it for my e-stop.
[22:53:35] <andypugh> I have a debounce function on my limits, otherwise I get the same problem.
[22:54:02] <jdhNC> I had to debounce my Z, but no others
[22:55:37] <andypugh> http://linuxcnc.org/docs/html/man/man9/debounce.9.html
[23:01:16] <Connor_CNC> okay, I think that may have did it.. Except, I still don't understand why I had to use straight ground vs using the 7414 to pull it low.. that was odd to me...
[23:02:01] <Connor_CNC> one other question.. is it normal for Velocity to show faster doing diagonals ?
[23:02:14] <andypugh> Yes
[23:02:24] <Connor_CNC> My max velocity is 141 but diag I can do 200
[23:02:46] <andypugh> If both axes are running full speed, the diagonal speed is sqrt(2) faster
[23:03:58] <Connor_CNC> 141" in/min respectable ?
[23:05:06] <andypugh> For a mini-mill it's not bad. It might be a bit boring with an 8x4 router.
[23:05:30] <jdhNC> it's much faster than my 16x14" router
[23:05:45] <aggrav8d> Connor - rapid, or cutting?
[23:05:49] <Connor_CNC> what is stepgen_maxaccel and max_acceleration ?
[23:05:59] <Connor_CNC> aggrav8d: rappid atm
[23:06:18] <aggrav8d> Connor - as long as your machine works any speed is respectable.
[23:14:17] <Connor_CNC> is their a value that sets the max speed for ALL axis? it looks like I changed something capping me out at 3600mm/min but danged if I can find it..
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[23:17:06] <andypugh> Right at the top of the INI?
[23:17:52] <andypugh> There is [DISPLAY]MAX_LINEAR_VELOCITY but I am not actually sure what that does.
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[23:25:35] <sumpfralle> fragalot, jdhNC, cradek: regarding your earlier discussion about single-line fonts: PyCAM supports them (QCad fonts) - see http://fab.senselab.org/en/blog/engraving-single-line-fonts for details
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[23:26:27] <jdhNC> cool, thanks.
[23:26:43] <jdhNC> I could never get pycam to generate anything last times I tried.
[23:28:57] <andypugh> JT-Shop: You have the patience of a saint.
[23:33:06] <Connor_CNC> Well, I've upped it 190 in/min
[23:39:38] <andypugh> Pint it red, that's always good for more speed.
[23:39:53] <Connor_CNC> ROFL
[23:40:01] <toastydeath> "I like my women like i like my machining centers. With 2800 IPM rapids."
[23:40:18] <toastydeath> i don't even know what that implies.
[23:40:44] <jdhNC> linux, cnc, women
[23:40:54] <jdhNC> guess which one he knows nothing about?
[23:41:10] <andypugh> Only one?
[23:41:23] <jdhNC> benefit of the doubt