#emc | Logs for 2011-06-08

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[00:40:02] <jdhNC> I think I asked...but is ther anyway to search for a part in eagle libraries?
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[01:43:52] <Tom_itx> jdhNC what you lookin for now?
[01:44:06] <Tom_itx> there is but it's not the greatest
[01:44:51] <Tom_itx> in the schematic editor, click the 'add part' icon. then a dialog will appear the bottom of the lib window
[01:44:57] <Tom_itx> you can enter a search there
[01:46:30] <jdhNC> yeah, that sucked
[01:46:42] <jdhNC> I found a freescale pressure sensor lbr on the site
[01:48:11] <ds3> anyone know what the CV spec for a solenoid valve mean? (sorry, it is a bit OT)
[01:48:21] <Tom_itx> also there's ref-packages.lbr with lots of footprints
[01:48:24] <Tom_itx> no symbols
[01:48:44] <Tom_itx> continuous voltage?
[01:48:47] <Tom_itx> i'm not sure
[01:50:55] <jdhNC> ds3: flow coefficient, pretty much related to the smallest flow area of the valve
[01:51:33] <ds3> jdhNC: so is 1 better or 0 better?
[01:51:42] <jdhNC> 0 would have no flow
[01:51:57] <ds3> ah okay. so the 0.1 and 0.2 values are pretty bad.
[01:52:39] <jdhNC> in my limited experience,it means the valve doesn't open very far, or there is a restricted orifice for flow control
[01:53:16] <ds3> I see.
[01:53:34] <jdhNC> it could be mostly meaningless, depending on the application
[01:53:56] <ds3> *nod*
[01:54:21] <ds3> trying to control air going into a vessel that is forcing goo out
[01:55:14] <jdhNC> it is the amount of flow / pressure drop
[01:56:06] <jdhNC> or rather, flow and pressure drop, that's not a divide
[01:56:59] <jdhNC> heh... the actual units are number of gallons per minute of water that can go through with a 1 psi drop... never would have guessed that.
[01:57:38] <ds3> basically the equivalent of resistance or los sthrough there
[01:57:51] <ds3> CV is an incredibly hard term to google
[01:58:32] <jdhNC> the only time it has had any relevance for me was spec'ing an oxygen control valve. Too low and it can create adiabatic heating
[01:59:22] <ds3> at least you knew what spec to look for :D
[02:00:14] <jdhNC> http://en.wikipedia.org/wiki/Flow_coefficient
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[03:07:42] <factor> Testing out my steppers with a lego CNNC
[03:08:17] <factor> CNC , I only get at most 2 inches out of the span. due to the lego axles only come that big
[03:08:22] <factor> but a good test
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[03:10:11] <toastyde1th> does anyone know of any tower climbing, telecom rigging, or rope access schools/classes on the east coast, towards DC?
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[03:36:19] <elmo40> hi. I am trying to figure out how I can rotate my work coordinate. I want to put the same slot in a sprocket 3 time, each being 120deg from one another. Is it on the website?
[03:37:45] <Valen> i dunno about rotation
[03:37:50] <Valen> i've heard it mentioned
[03:40:56] <SWPadnos> http://www.linuxcnc.org/docs/2.5/html/gcode/main.html
[03:41:04] <SWPadnos> http://www.linuxcnc.org/docs/2.5/html/gcode/main.html#_g10_l2_set_coordinate_system_a_id_sub_g10_l2_a
[03:41:39] <SWPadnos> or, for 2.4.x: http://www.linuxcnc.org/docs/2.4/html/gcode_main.html#sub:G10:-Set-Coordinate
[03:41:48] <elmo40> a rotational working offset, found it ;) [G10 L2 P- R- axes ]
[03:41:56] <SWPadnos> night :)
[03:42:02] <elmo40> thnx SWPadnos
[03:42:07] <SWPadnos> sure
[03:42:15] <elmo40> so you still need to set them?
[03:42:26] <elmo40> then call a different P value when you want it?
[03:42:34] <SWPadnos> I think that's how you do it. it's a rotary offset
[03:42:43] <elmo40> I will tinker :)
[03:42:57] <SWPadnos> well, I'd make the slot into a subroutine, same as you'd do it if you wanted a linear array
[03:43:04] <SWPadnos> then offset the rotation instead of the position
[03:43:28] <elmo40> ya, that is the way I was going to do it.'
[03:43:35] <elmo40> offset the WPC
[03:43:39] <SWPadnos> yep
[03:43:41] <elmo40> well, rotate the WPC
[03:43:41] <SWPadnos> night
[03:43:43] <elmo40> night
[03:58:29] <elmo40> is there a way to do an IF/THEN statement that involves 'IF spindleRPM drops 10% (due to load) THEN feed=feed*.1' ?
[03:59:50] <elmo40> anyone use G61.1 P- Q- ?
[04:00:15] <elmo40> it says: The P- tolerance means that the actual path will be no more than P- away from the programmed endpoint.
[04:01:01] <elmo40> does that mean it is a measurement? in what values? depending on the current unit? so I can use P0.003?
[04:01:27] <elmo40> oops. G64 P- Q-, sorry
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[04:56:14] <scanf> how would a 1.2ghz p4 with 256mb be for emc2?
[04:56:38] <Valen> the 256 is probably a bit light
[04:56:46] <Valen> the rest depends on the latency
[04:56:46] <scanf> what if i bring it up to 1gb
[04:56:58] <scanf> i also have a p4 1.8ghz laptop with 1gb of RAM
[04:57:22] <Valen> 1gb should be plenty
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[04:57:31] <Valen> but it depends on the latency results
[04:57:40] <Valen> typically laptops perfrom poorly
[04:57:47] <scanf> whats a good number
[04:58:12] <Valen> http://wiki.linuxcnc.org/emcinfo.pl?Latency-Test
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[05:56:16] <L33TG33KG34R> elmo40, http://www.leetgeekgear.ca/IMAGES/GDADAHRS/ReverseThrustMechanism.JPG
[05:58:15] <L33TG33KG34R> gnite
[06:14:39] <Jymmm> Tom_itx: ping
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[08:27:55] <Tom_itx> Jymmm pong
[08:28:23] <Jymmm> Tom_itx: Do you deal with JUST atmel stuff, or other "things" too?
[08:28:35] <Tom_itx> mostly atmel now
[08:28:39] <Jymmm> k
[08:29:02] <Tom_itx> what other 'stuff'?
[08:29:12] <Jymmm> sata controllers
[08:29:18] <Tom_itx> no
[08:29:33] <Jymmm> why the hell not ;)
[08:29:48] <Tom_itx> you outta talk to pepsi in electronics
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[08:30:32] <Tom_itx> he might know about them
[08:31:08] <Jymmm> eh, it's all good just more or less wondering if there is anything that could turn one PC's usb port into a bootable device for another PC
[08:31:16] <Tom_itx> unless the meth has gotten to him
[08:33:19] <Jymmm> TMI
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[13:24:17] <jthornton> couple of new photos of the shop http://gnipsel.com/shop/inside/inside.xhtml
[13:24:44] * jthornton heads to the other shop
[13:29:11] <archivist_emc> hmm filling up, build another larger shop :)
[13:35:27] <Jymmm> Hell of a long walk/drive just to get to the other shop
[13:52:46] <jdhNC> that's a lot of OSB
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[13:54:23] <jdhNC> why did you only insulate every other part (and only 6ft high?)
[13:56:05] <jdhNC> oh, nevermind.... is the window unit a/c going to be in an office of some sort?
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[15:39:18] <jthornton> the window unit cools the entire shop
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[15:39:40] <IchGuckLive> tom3p: ?
[15:39:47] <jthornton> R19 walls, R43 ceiling, R12 garage door
[15:40:09] <jdhNC> wonder what one would do for my garage
[15:40:37] <jthornton> when it is 100F outside the AC only runs a few minutes every couple of hours
[15:41:55] <jthornton> in my garage (not completely insulated and doors not sealed) the AC can only do about 15-20 lower than outside temps
[15:42:23] <IchGuckLive> AC?
[15:42:30] <jthornton> air conditioner
[15:42:48] <IchGuckLive> in Germany noone has this
[15:43:20] <jthornton> In Maine they don't have them either :)
[15:43:53] <IchGuckLive> Alaska 2
[15:44:12] <IchGuckLive> florida everyone + ice mashine
[15:44:13] <cradek> in nebraska, we definitely have them.
[15:45:01] <jthornton> we did have a good heater and well insulated house when I lived in Alaska but no AC that I recall
[15:45:07] <skunkworks_> same here!
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[15:46:41] <tom3p> window fan on cool side of house, get the house to breathe, and a dehumidifier in basement will drop the temp with low kwh cost
[15:49:07] <jdhNC> no basements here
[15:49:36] <tom3p> they are handy, they old skool equivalent of a garage
[15:49:54] <jdhNC> they would be called 'swimming pools' here
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[15:59:50] <tom3p> aha then do the Thai thing, raise your house on stilts and hang out in shade underneath during day, and sleep up in the cooler level at night
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[16:22:40] <Connor> jdhNC: Just got a call from Grizzly
[16:23:01] <Connor> My mill is on it's way. 5-7 days.
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[16:24:04] <jdhNC> cool. Liftgate?
[16:24:14] <Connor> Oh yea.
[16:24:40] <jdhNC> guess it is worth it
[16:24:49] <Connor> They drop it off at bottom of driveway most likly.. If they have a dolly, maybe get them to let me use it to bring it up.
[16:25:10] <jdhNC> I could have it delivered to a dock and then pick it up
[16:25:14] <Connor> Bad back. steep driveway.. no way to lift it up/down
[16:25:37] <jdhNC> heh, steep here is a speed bump
[16:25:58] <Connor> I do live in TN you know.. :)
[16:26:22] <jdhNC> yep, I spent way too many years there before I came to my senses
[16:27:53] <jdhNC> my kids have never ridden a bike uphill
[16:28:41] <Connor> I don't understand WHY they sent out the thing yesterday, only to have them call me up and tell me it's coming NOW. *boggle*
[16:28:49] <Connor> But, that's okay. :)
[16:29:27] <jdhNC> isn't it supposed to still be 'on the sea'?
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[16:43:08] <willburrrr2003> Congrats conor, enjoy your new Mill :D the g0704 is on my list for tax season ;)
[16:45:47] <tom3p> is '[0-#<namedvar>]' the usual way to get a negative value?
[16:46:35] <JT-Shop> I just use -
[16:47:06] <cradek> previously, unary minus was not allowed; now it is
[16:47:30] <JT-Shop> previous to 2.4?
[16:47:47] <cradek> I don't recall the version where unary minus was added
[16:47:51] <cradek> it's somewhat recent
[16:48:04] <cradek> [0-#1] was the old 'binary minus' way
[16:48:14] <JT-Shop> ok, thanks
[16:50:28] <tom3p> ok, thanks :)
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[17:00:11] <IchGuckLive> biggest sun erupption since years -> http://sohowww.nascom.nasa.gov/hotshots/2011_06_07/AIA-304-20110607_small.mov
[17:05:43] <IchGuckLive> tom3p: ?
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[17:14:56] * jthornton uses cradek's gitk grep trick to find when unary minus was added 2010-01-13 09:35:03
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[17:23:02] <Loetmichel> hmm... my wife wants to go to NY for 3-5 days somewhere in the next two weeks... anyone here with a CHEAP offer for germany/Ffm -> NY with hotel?
[17:23:25] <Loetmichel> (there goes my payed holydays.. :-( )
[17:45:53] <tom3p> how to skip over large sections of gcode? lots of '/' or 'o999 if blah' wrappers? is there an oword 'goto' equivalent?
[17:45:59] <IchGuckLive> Loetmichel: flieg fon luxemburg das macht nur 50%
[17:51:02] <IchGuckLive> Loetmichel: direkt an dersevens avenue mit mitwagen 24-29 848EWur
[17:55:30] <psha> tom3p: vim: 100dd
[17:56:02] <IchGuckLive> psha: thanks for your help this wek you saved my A**
[17:56:54] <psha> IchGuckLive: np
[17:56:59] <psha> have you found root of that problem?
[17:57:18] <IchGuckLive> no it works now
[17:57:26] <psha> heh :)
[17:57:51] <psha> maybe you need read-only root partition and only writable home + /tmp/ + /var? :)
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[18:09:42] <tom3p> xyzwac emc2 vismach http://videobin.org/+4n0/50p.html http://videobin.org/+4mz/50o.html
[18:10:11] <tom3p> psha: will have to study a bit to understand vim: 100dd ;)
[18:10:44] <psha> tom3p: i mean that you may use some external tools like vim to comment/delete section from gcode file
[18:10:53] <psha> 100dd deletes 100 lines (from current one)
[18:11:02] <psha> but you may just comment whoe block
[18:11:17] <IchGuckLive> nice
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[18:14:19] <tom3p> psha thx, i figured it was some sort of cut, i was hoping for /* and */ inside gcode :)
[18:14:56] <tom3p> the edm hopop vismach code http://pastebin.com/YvcyFXMG
[18:17:02] <tom3p> hal http://pastebin.com/eyxK4Ji5 ini http://pastebin.com/SCgZpUt8
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[18:33:41] <IchGuckLive> tom3p: http://foengarage.de/new_impel.mpg does this run for you ?
[18:34:42] <IchGuckLive> for those on linux mplayer http://foengarage.de/new_impel.mpg -fps 25
[18:34:55] <IchGuckLive> 2MB
[18:34:57] <tom3p> yes, not in ffox but fine in vlc
[18:35:20] <IchGuckLive> this woudt be nice in Vismatch
[18:36:46] <IchGuckLive> ok by for me today Nice job to all
[18:36:50] <tom3p> sorry, no material removal, only object motion
[18:36:52] <tom3p> bye!
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[18:58:05] <jdhNC> connor: what was your total?
[19:04:06] <jdhNC> I'm still getting $1030 total with liftgate
[19:04:21] <jdhNC> but, they dropped freight charges since then so I don't really get much of anything
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[19:21:33] <Connor> jdhNC: I don't recall.. Let me look
[19:25:08] <Connor> $1123.00, $995 for the Mill, $94.00 freight, $34.00 liftgate
[19:25:49] <jdhNC> so, I saved a little still.
[19:26:05] <Connor> Yea, you have a a $50 off or something?
[19:26:56] <Connor> Oh, N/M, you just lost the Freight... they still charging you the liftgate fee ?
[19:27:04] <jdhNC> $950 +34 liftgate + 128 freight -$47.50 5% coupon
[19:27:19] <Connor> 950 ?
[19:27:27] <jdhNC> for the mill... last years price
[19:27:31] <Connor> Ah
[19:27:59] <Connor> Yea. you get free shipping basicly.
[19:28:17] <Connor> 128 Freight ?
[19:28:58] <Connor> $94.00 freight for me.
[19:29:11] <jdhNC> yeah, it would be if I ordered now also
[19:29:20] <Connor> Not enough $$$ for me to worry over.
[19:29:37] <jdhNC> no, but I'll take the $90 off :)
[19:29:42] <Connor> yea.
[19:29:53] <Connor> They call you yet?
[19:29:56] <jdhNC> I was getting a free T22185 alsow
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[19:30:29] <Connor> It's Discontinued now.
[19:30:40] <jdhNC> it was then also, it was a freebie
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[20:38:07] <factor> making a ncurses test for my stepper positions.
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[20:38:36] <factor> finally got the x and y motors stepping fast and slow together.
[20:39:50] <factor> after I get them drawing a 1) square 2)triangle 3)circle then build to the third axis
[20:39:58] <archivist_emc> ncurses and steppers, are you on the right planet
[20:41:05] <factor> ncurses give me a nice x y lib to control the scren
[20:41:21] <factor> been working with the LINE mode screen.
[20:41:27] <factor> that works moving up now
[20:41:35] <archivist_emc> steppers dont drive a screen
[20:41:47] <factor> the keyboard drives the screen and the motors
[20:42:24] <factor> will see how close I can keep step with the real thing and if I need to add inputs from the pic for further feedback
[20:42:33] <archivist_emc> this chan is about EMC driving the machine
[20:42:52] <factor> yes I will get to that.when I am done designing my cnc
[20:43:01] <factor> this is a test program
[20:43:16] <factor> test programs will work well with emc
[20:43:23] <factor> I dont want that high of level yet
[20:43:29] <archivist_emc> just use emc to test steppers
[20:43:45] <factor> in fact my CNC is built right now with tecnic LEGOS.
[20:44:00] <skunkworks_> heh
[20:44:03] <factor> real steppers though.
[20:44:24] <factor> and its working :)
[20:44:27] <factor> so far.
[20:44:57] <factor> used about all my long technic lego sticks though
[20:45:43] <factor> also just one computer right now linux cnc needs to boot on its own iit seems
[20:45:50] <factor> woudl be nice to have a standalone prog
[20:47:46] <factor> I do have a second computer with a borked sound card I will dedicate to it , but just testing now
[20:48:38] <factor> would like to have a mini ITX computer since they are so small, but will just use the old atx mb
[20:51:54] <archivist_emc> all the scaling for the steppers is done in EMC there is NO need to re invent the wheel
[20:52:18] <factor> that is what makes it fun, is to reinvent the wheel
[20:52:34] <factor> but I dont have the second computer setup to work with now
[20:52:48] <factor> I need a system that works on my linux desktop
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[21:11:23] <factor> emc rocks though , just not up to having my cnc to its level yet .
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[21:15:38] <elmo40> factor: have any pics ?
[21:18:55] <JT-Shop> the ever popular last piece of OSB has been fastened to the wall :)
[21:19:10] <jdhNC> you doing all this solo?
[21:19:37] <JT-Shop> for the most part yes
[21:20:16] <JT-Shop> my buddy helped me hang the 5/8 sheet rock on the ceiling and helped a bit with the shingles, rest was this one man army
[21:20:44] <jdhNC> wow, ceiling sheetrock sucks
[21:21:00] <jdhNC> why not osb?
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[21:25:22] <JT-Shop> dunno, I had a lift but it takes 2 old farts to put 12' sheets of 5/8 up on the lift
[21:26:09] <factor> sorry was afk elmo40
[21:26:26] <factor> no I dont have any pics right now.
[21:27:07] <factor> just got the lego cnc working , just needed it for a cheap test, before I make the larger/more sturdy one.
[21:27:36] <factor> but limited to the width of 2 inches by 2 inches. since the technic axis parts only are that large.
[21:28:07] <factor> but good enough to test on before spending a bunch of money on a larger model and get to test out better methods etc.
[21:28:31] <factor> of which I had previously built and welded together a metal version that did not work the way I wated
[21:28:47] <factor> taking a step at a time this round
[21:29:19] <JT-Shop> that's the way I built my plasma
[21:29:44] <factor> yes I have access to a plasma as well.
[21:29:53] <factor> not for this model though , future versions
[21:30:22] <JT-Shop> http://i47.photobucket.com/albums/f163/johnplctech/Plasma%20Cutter/Plasma010.jpg
[21:30:35] <factor> this model I will just make plaster apraus blocks and cut them out to what I want.
[21:30:59] <factor> nice
[21:31:48] <factor> What kind of stepper controls did you use?
[21:31:52] <factor> JT-Shop, ^
[21:32:11] <JT-Shop> Gecko 203v's
[21:34:02] <JT-Shop> http://www.youtube.com/watch?v=knf3cPrZPrk first moves
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[21:34:38] <factor> designing my own , so far they are working super , but writing a prog to test it reliability.
[21:34:45] * JT-Shop goes back to the shop to start the big cleanup
[21:35:06] <factor> nice control
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[22:12:44] <mrsunshine__> hmm, is there any software for making gcode for index wheels? :)
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[22:16:06] <mrsunshine__> ofc, with steppers what would you need one for ;P
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[22:29:44] <factor> I had heard some python code existed
[22:29:50] <factor> mrsunshine__, good question
[22:30:39] <factor> mrsunshine__, http://replicat.org/generators
[22:37:40] <ve7it> mrsunshine__, http://members.shaw.ca/swstuff/spindle-encoder.html http://members.shaw.ca/swstuff/spindle-encoder.ngc
[22:39:19] <elmo40> I remember that
[22:39:29] <elmo40> I hope to accomplish the same thing this year
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[23:48:51] <bekks> hi
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