#linuxcnc | Logs for 2012-06-28

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[00:10:52] <ds3> o
[00:13:07] <Jymmm> k
[00:13:20] <Tom_itx> d o k i e
[00:15:17] <r00t4rd3d> http://www.kickstarter.com/projects/lehoux/the-kinkajou-a-bottle-cutter-with-a-new-twist
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[00:16:55] <tjb1> Do inductors have a polarity?
[00:17:35] <Tom_itx> the earth does
[00:18:19] <Tom_itx> not that i know of
[00:18:28] <tjb1> One leg is longer, just wondering
[00:18:38] <Tom_itx> well so are mine
[00:18:40] <Tom_itx> :)
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[00:19:00] <tjb1> ha alright
[00:21:48] <tronwizard> inductors have no polarity
[00:22:10] <tjb1> Thanks
[00:22:20] <tronwizard> but sometimes phasing matters if you're coupling to another inductor
[00:22:31] <Tom_itx> definitely
[00:23:01] <Tom_itx> i coupled 3 transformers primaries AND secondaries to make the psu for my mill
[00:23:41] <tronwizard> weird voltage requirement?
[00:23:42] <Tom_itx> there was less than 35ma direct short between the secondaries if anyone is gonna tell me i'm nuts
[00:23:47] <tronwizard> or just 120 to 240
[00:23:48] <Tom_itx> surplus
[00:23:55] <Tom_itx> 50v 18A
[00:24:10] <tjb1> Is there is nothing in the datasheet, is the top of the diagram always the dot on a chip
[00:24:17] <tjb1> or is the dot pin 1?
[00:24:38] <tronwizard> usually
[00:24:54] <Tom_itx> tronwizard, mostly surplus except the mesa and gecko stuff: http://tom-itx.dyndns.org:81/~webpage/cnc/psu/control5.jpg
[00:25:10] <tronwizard> wow
[00:25:13] <Tom_itx> including the box
[00:25:47] <Tom_itx> http://tom-itx.dyndns.org:81/~webpage/cnc/psu/psu_index.php
[00:25:50] <Tom_itx> project page
[00:26:01] <tronwizard> looks a little tight to work on but the layout is nice
[00:26:55] <Tom_itx> i wanted a little bigger box but for $22 and shipping....
[00:27:35] <tronwizard> you have any trouble with coupling between those xfmrs because they're all oriented the same?
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[00:28:20] <Tom_itx> not really
[00:28:45] <Tom_itx> i originally coupled them after the dc bridges
[00:30:06] <Tom_itx> all that's left is to wire up the pendant
[00:30:07] <tronwizard> oooo, nice etch tank
[00:31:05] <Tom_itx> yeah i've done a bit of that too
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[00:33:14] <tjb1> White stripe on cap negative?
[00:33:20] <Tom_itx> yup
[00:33:40] <Tom_itx> flip a coin
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[02:47:12] <tjb1> Tom_itx:
[02:49:10] <Tom_itx> ?
[02:55:29] <r00t4rd3d> http://www.hobbyking.com/hobbyking/store/__22780__Turnigy_Integrated_PCB_Plug_and_Play_Micro_Quad_PNP_.html?utm_source=Customer+List&utm_campaign=72b16199a4-FDUpdate_27_06_2012&utm_medium=email
[02:56:17] <r00t4rd3d> http://www.hobbyking.com/hobbyking/store/catalog/22780-sub5.jpg
[03:01:25] <tjb1> http://psi.abcom.co.nz/circuit10.jpg
[03:01:39] <tjb1> the iso amp is at 3.6v between vdd2 and vout+
[03:01:42] <tjb1> is something wrong
[03:01:50] <tjb1> or do I need to add stuff to it
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[03:07:42] <Tom_itx> not sure what you got going on there
[03:07:54] <tjb1> Well the output was wrong
[03:08:01] <tjb1> so i pulled the iso amp and put it on the breadboard alone
[03:08:14] <tjb1> and it seems it is bleeding voltage between VDD2 and VOut+
[03:08:22] <Tom_itx> generally the data sheet will have design suggestions
[03:08:44] <Tom_itx> breadboarding stuff isn't the most reliable way
[03:08:53] <Tom_itx> breadboards suck electrically
[03:09:35] <tjb1> well I soldered it all together and it didnt work
[03:09:36] <tjb1> :P
[03:09:55] <tjb1> http://www.digikey.com/scripts/DkSearch/dksus.dll?vendor=0&keywords=ACPL-782T-000E
[03:09:57] <tjb1> there is the iso amp
[03:10:22] <Tom_itx> what's this for?
[03:10:30] <tjb1> to measure plasma cutter voltage
[03:10:44] <Tom_itx> oh
[03:11:39] <tjb1> Something wrong with iso amp or am I missing some pieces?
[03:17:11] <Tom_itx> you may need more gain on the output of the opto
[03:17:14] <Tom_itx> i'm not sure
[03:17:45] <tjb1> more gain?
[03:17:55] <Tom_itx> op amp
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[03:19:20] <Tom_itx> holy crap those are expensive
[03:19:28] <tjb1> Yeah lol
[03:21:43] <uw> r00t4rd3d, have you used that before?
[03:22:52] <Tom_itx> tjb1, did you see the recomended board layout for that?
[03:23:00] <tjb1> What page?
[03:23:01] <Tom_itx> you may not get good results on a breadboard
[03:23:07] <tjb1> Dont say 16
[03:23:13] <Tom_itx> 14
[03:23:30] <Tom_itx> and 16
[03:23:32] <Tom_itx> :)
[03:23:43] <tjb1> So…I need all of that past 6 and 7
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[03:24:06] <Tom_itx> that would be the op amp i mentioned
[03:24:25] <tjb1> So that would eliminate the voltage between 7 and 8
[03:24:45] <Tom_itx> i don't know
[03:24:58] <Tom_itx> i've not used that part or tried to design such a circuit
[03:25:09] <tjb1> Well what do you think about just hooking arduino ground to the plasma -
[03:25:50] <tjb1> Because I dont feel like spending any more money on this stupid circuit
[03:25:52] <Tom_itx> it should have a common ground
[03:26:06] <tjb1> It does, but it doesnt share with the voltage output
[03:27:44] <tjb1> Im just gonna ground the damn thing
[03:27:50] <tjb1> If I blow the arduin up its only $20
[03:27:58] <tjb1> already wasted $30 on this stupid ass circuit
[03:28:09] <Tom_itx> no reason to blow it now
[03:28:23] <Tom_itx> i just don't know what it's supposed to do or how the part works
[03:28:28] <tjb1> Well
[03:28:36] <uw> lol oh i remember this circuit
[03:28:37] <tjb1> Thats suppose to isolate the voltage divider on the plasma cutter
[03:28:42] <tjb1> from the arduino...
[03:28:55] <tjb1> and the dc/dc isolates the power from the arduino
[03:29:00] <tjb1> sounds good in theory
[03:29:02] <uw> where did you get this thing anyway?
[03:29:02] <tjb1> but yeah.
[03:29:15] <tjb1> sparkfun irc.
[03:29:26] <tjb1> some guy on eevblog added all the stuff in red
[03:29:44] <Tom_itx> time to sleep for me
[03:29:51] <uw> good night Tom_itx
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[03:29:56] <tjb1> Bye Tom_itx
[03:29:56] <Tom_itx> don't give up on it just yet
[03:30:07] <tjb1> Well tomorrow morning im hooking arduino up to plasma cutter
[03:30:27] <Tom_itx> if it's not 5v it won't like it
[03:30:40] <tjb1> The guy who made it was bitching because I soldered it so I isolated the iso amp and its still not working
[03:30:43] <tjb1> I have a voltage divider
[03:30:59] <Tom_itx> what's the voltage you're trying to monitor?
[03:31:14] <tjb1> 7
[03:31:20] <tjb1> but I have a voltage divider to bring it down to 5
[03:31:38] <Tom_itx> and what's the voltage swing of it?
[03:31:46] <tjb1> 0-7
[03:31:48] <Tom_itx> ground to 5v?
[03:32:03] <tjb1> ?
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[03:33:16] <Tom_L> well that sucked
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[03:33:30] <Tom_itx> zlog
[03:33:31] <zlog> Tom_itx: Log stored at http://tom-itx.dyndns.org:81/~tom-itx/irc/logs/%23linuxcnc/2012-06-27.html
[03:34:49] <Tom_itx> measure the voltage with a meter on your voltage divider
[03:35:48] <tjb1> Well with no arc is 0
[03:35:57] <tjb1> arc depending on stuff it varies
[03:36:38] <Tom_itx> so what makes it vary?
[03:36:53] <tjb1> distance from work piece to tip
[03:36:58] <tjb1> longer distance = higher voltage
[03:37:18] <Tom_itx> with the max at 5v
[03:37:35] <tjb1> With my voltage divider it will max at 5v because the max input on the arduino is 5v
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[03:37:55] <Tom_itx> ok, did you set the adc reference to 5v?
[03:38:24] <tjb1> are we talking about the iso amp or the arduino?
[03:38:48] <Tom_itx> the arduino
[03:38:57] <Tom_itx> you said you were gonna hook it up directly
[03:39:00] <tjb1> Well I havent got to the arduino yet
[03:39:14] <tjb1> Why do I need the analog reference at 5v?
[03:39:35] <Tom_itx> well because that's the voltage you want to measure
[03:39:47] <tjb1> well the arduino max is 5v
[03:39:49] <tjb1> so 5v is 1023 anyway
[03:40:02] <tjb1> So I wouldnt need a reference
[03:40:25] <Tom_itx> where are avcc and aref pins tied?
[03:40:41] <Tom_itx> and agnd
[03:41:04] <tjb1> No aref
[03:41:14] <tjb1> there is analog input
[03:41:18] <Tom_itx> well there needs to be
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[03:41:36] <Tom_itx> because that sets the reference voltage for the adc pins
[03:41:37] <tjb1> I dont need a reference if I am working with 5v
[03:41:50] <Tom_itx> so tie it to 5v then
[03:42:11] <Tom_itx> aref needs to be tied to something unless you're using an internal reference voltage
[03:42:18] <tjb1> its internal
[03:42:19] <tjb1> it will use 5v
[03:42:36] <tjb1> unless changed by the aref
[03:43:05] <Tom_itx> so hook it up and try it then
[03:43:31] <tjb1> Its 11:43 :P
[03:43:39] <Tom_itx> http://tom-itx.dyndns.org:81/~webpage/how_to/atmega168/mega168_adc_index.php
[03:44:08] <tjb1> Every time I screw with electronics, I waste money
[03:44:23] <tjb1> I wasted more money trying to build a "Drawdio" then it would of cost to buy the damn kit
[03:44:50] <Tom_itx> well if you don't know what you're doing maybe the kit would be the best bet
[03:46:16] <tjb1> Im just gonna hook the arduino up tomorrow
[03:46:18] <tjb1> if it blows
[03:46:25] <tjb1> Ill buy a new arduino and save up $600 for the thc
[03:46:53] <Tom_itx> all you'd need would be another mega328
[03:46:56] <Tom_itx> probably
[03:47:04] <Tom_itx> and those are cheap
[03:47:13] <tjb1> yeah like $4 with the bootloader on it
[03:47:31] <Tom_itx> poop on the bootloader
[03:47:35] <Tom_itx> i'm not sold on arduinos
[03:47:43] <tjb1> Well im stupid
[03:47:49] <tjb1> So you see why I use it
[03:47:55] <Tom_itx> the boards are ok but i don't like their libs etc
[03:48:05] <tjb1> I cant stand programming it
[03:48:09] <Tom_itx> because you don't know what you got
[03:48:09] <tjb1> like Serial.print
[03:48:16] <tjb1> It doesnt work if you use serial.print
[03:48:20] <tjb1> or Serial.Print
[03:48:31] <jdh> nor should it.
[03:48:47] <tjb1> I cant stand the case sensitive programming
[03:49:04] <jdh> like c?
[03:49:15] <Tom_itx> gnite
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[03:49:44] <tjb1> Bye Tom_itx
[03:49:50] <tjb1> Ill let you know how many chips blow up
[03:50:20] <Tom_itx> 0
[03:50:35] <tjb1> Too bad you cant return stuff to digikey
[03:50:41] <tjb1> $30 learning experience...
[03:50:48] <tjb1> jdh, I cant learn programming
[03:52:37] <tjb1> Well the DC/DC isolator works…guess I could find a use for that
[03:53:41] <tjb1> jdh you experienced with electronics?
[03:53:41] <tjb1> I have an idea.
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[04:00:15] <taiden> so who wants to look at my gcode and critique my methods?
[04:00:29] <taiden> code runs fine but im trying to write better code
[04:01:44] <tjb1> http://sphotos.xx.fbcdn.net/hphotos-ash3/s480x480/529211_3978241010417_281095656_n.jpg
[04:01:57] <tjb1> Sorry Tainden, I havent done g-code in a while
[04:02:01] <tjb1> *Taiden
[04:03:18] <tjb1> Sorry, big version here - http://a3.sphotos.ak.fbcdn.net/hphotos-ak-ash4/288262_3978241010417_281095656_o.jpg
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[05:45:54] <tjb1> http://www.alliedelec.com/search/productdetail.aspx?SKU=70163119
[05:46:05] <tjb1> Does that mean 5 pieces that are 6ft long?
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[06:59:18] <DJ9DJ> moin
[07:01:07] <samkan> Hello all,
[07:01:27] <samkan> I need to merge two hal file can anyone please suggest me a solutions?
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[07:51:25] <Loetmichel> mornim'
[07:53:36] <micges> hi
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[10:06:59] <jthornton> morning
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[10:14:17] <r00t4rd3d> i hate being artificially awoken.
[10:15:01] <jthornton> I've not set an alarm clock in 20 years and don't wear a watch
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[13:17:02] <skunkworks> chirp chirp
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[13:19:38] <skunkworks> http://www.youtube.com/watch?v=KfeWPoP3T5U
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[13:25:52] <mozmck> Anyone here familiar with a G&L NumeriMite?
[13:29:30] <skunkworks> Convert it to linuxcnc! ;)
[13:29:33] <skunkworks> sorry - no.
[13:30:29] <mozmck> There's one near me for cheap with the controls removed. It says box ways and very heavy duty.
[13:30:52] <mozmck> Is there a chance it has hydraulics instead of ball-screws?
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[13:43:55] <cradek> sorry, no idea, but the list really might know. there are some guys who seem to know old equipment really well.
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[13:51:31] <pcw_home> Lots of manuals for sale but I dont see any direct info
[13:52:06] <cradek> mozmck: near enough to just go look at?
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[13:52:37] <pcw_home> looks old enough that it might be hydraulic, can you ask the seller/look?
[13:53:10] <cradek> beware it could have ballscrews AND hydraulic motors, like skunkworks's
[13:54:04] <cradek> (it's cool that resolvers aren't the obstacle they used to be)
[13:54:39] <Gevallen_Engel> morning :)
[13:56:00] <micges> afternoon :)
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[13:56:01] <mozmck> I can go look at it - just thought I'd see if someone knew something about them first. They want $850 for it.
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[13:58:14] <mozmck> It's not like I'm bored and need another project though :)
[13:58:59] <cradek> stuff that old always has a slooooow spindle
[13:59:01] <Gevallen_Engel> http://imgur.com/a/ACozl I picked one up awhile ago, not much progress though other than learning
[14:00:13] <skunkworks> Gevallen_Engel: what was it in its previous life?
[14:01:00] <Gevallen_Engel> a sagian multipette
[14:01:23] <jdh> that's what I was thinking it was.
[14:01:38] <skunkworks> mozmck: They keep coming back to a 'drill and tap' machine
[14:01:39] <Gevallen_Engel> I also have a packard multiprobe but its got nothing on that in terms of being overbuilt
[14:06:41] <mozmck> Ok, here's a link. If someone else wants it real bad that's fine with me! http://dallas.craigslist.org/dal/for/3087448391.html
[14:07:30] <cradek> nice size!
[14:08:05] <cradek> I wonder if the head moves, or is it just that really long quill?
[14:08:28] <Gevallen_Engel> damn, thats quite a bit of machine for 850
[14:08:56] <mozmck> Looks like a nice size to me. In the second picture it looks like there are ways for the head to move.
[14:09:06] <cradek> ah you're right
[14:09:41] <cradek> haha the "numeripoint" logo has a TRANSISTOR
[14:09:47] <mozmck> I'd like to get something like this sometime. Right now I'm strapped for cash and time, but might could manage before long.
[14:09:57] <mozmck> :) new technology!
[14:10:03] <pcw_home> though it does look rather hydraulicy
[14:10:18] <syyl> and heavy ;)
[14:10:27] <Gevallen_Engel> http://www.incredilution.com/2011/01/engineering-to-save-5000/ found this to be kinda interesting
[14:10:30] <syyl> looks like you cant do anything on it without a forklift
[14:10:40] <cradek> I don't see any sign of motors
[14:10:45] <pcw_home> heavy is good once its moved
[14:11:06] <mozmck> There looks to be a hydraulic pump on top, which makes me wonder....
[14:11:14] <cradek> I could BARELY move my machine that size with two very determined people and crowbars
[14:11:16] <syyl> maybe hydraulic cylinders as drives?
[14:11:18] <Gevallen_Engel> It had me wondering that the sagian was sturdy enough to pull it off on a smaller scale.
[14:11:34] <mozmck> I have a non-CNC mill that weighs about 6500 I believe. It was a pain to move.
[14:11:54] <syyl> moved a surface grinder, 1,5 tons last year
[14:12:02] <syyl> pita without proper equipment
[14:13:38] <archivist> jack,levers,wood and rollers(scaffold tube)
[14:14:28] <syyl> we had two machine jacks and a small handpulled pallet mover
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[14:15:41] <syyl> that beast was kinda top heavy..
[14:16:06] <skunkworks> we drill holes in the floor for pull points.
[14:16:23] <skunkworks> water pipe also works good as a rolling medium
[14:16:27] <syyl> haha, have seen that in a friends shop :D
[14:16:40] <syyl> first he used his big ass shaper as an anchorpoint
[14:16:46] <syyl> and then drilled holes
[14:17:03] <cradek> I have a very large tree in the right place
[14:17:11] <skunkworks> heh
[14:17:26] <cradek> tree - little door - [SHOP] - big door
[14:17:38] <syyl> perfect :D
[14:17:58] <skunkworks> I don't think we have done that in a while.. We have a small forklift that lifts most things. (not all)
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[14:18:16] <archivist> I make wooden tracks to go over rough ground
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[14:22:30] <skunkworks> http://www.equipmatching.com/used_equipment/6/17/280704.php
[14:22:53] <skunkworks> 1967 - ball screws with a numeripoint control....
[14:23:17] <syyl> mh, that machine has a pretty wide speed range
[14:23:21] <syyl> up to 1320 rpm
[14:23:39] <syyl> when you want to use a 2mm endmill ;)
[14:23:53] <cradek> 6.9 RPM !!
[14:24:56] <cradek> skunkworks: that looks like a tiny version of stuart's
[14:25:04] <skunkworks> but you can put a 12" shell mill in it...
[14:25:29] <cradek> skunkworks: maybe his was also numeripoint?? it was resolver/linear scale/analog dc servo
[14:26:15] <skunkworks> I don't know. For some reason - I cannot find any real info on the numerimite.. I wonder if that isn't exatly how it is spelled.
[14:26:39] <cradek> the name is in the photo
[14:29:08] <skunkworks> hmmm - looks like that is how it is spelled
[14:29:21] <skunkworks> my google foo has failed me
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[14:34:21] <skunkworks> looks like it might be only 2 axis positioning.
[14:37:40] <Gevallen_Engel> skunkworks, http://www.umanuals.com/images/detailed/3/Giddings-Lewis-Bickford-NumeriMite-Drill-Instruction-Cover.jpg ?
[14:46:24] <Gevallen_Engel> http://www.google.com/patents/US3478624.pdf
[14:46:35] <Gevallen_Engel> which got me to that, might be what youre looking for
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[15:15:32] <taiden> morning gents
[15:16:10] <taiden> having some issues with nested subroutines :)
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[15:20:02] <taiden> JT-Shop: do you have a minute?
[15:20:36] <archivist> put something on a pastebin and ask the real question
[15:24:00] <taiden> yep
[15:25:39] <taiden> http://pastebin.com/t6UDwB0H
[15:25:50] <taiden> I have part_base.ngc in my subroutines directory
[15:26:11] <taiden> when I try to call it from my fixture.ngc file it says it doesn't know what o<face> is (lol)
[15:26:39] <taiden> so i figure that those first subroutines are not visible when o<part_base> is called in this manner
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[15:27:12] <taiden> that paste is part_base.ngc
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[15:28:59] <archivist> I think it is one routine per file http://linuxcnc.org/docs/html/gcode/o-code.html#_calling_files
[15:30:06] <taiden> alright
[15:30:08] <taiden> so
[15:30:14] <jdh> you should be able to turn your bore/face/turn to numbers and it would work like that
[15:30:35] <taiden> could I also just make those separate subroutine files? since I will probably use them later
[15:36:02] <jdh> that is my understanding, but I have never done it.
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[16:36:26] <taiden> i dont think that the numbered subroutines works
[16:36:38] <taiden> hm
[16:37:56] <jdh> they have worked for me.
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[16:39:40] <taiden> not that they never work
[16:39:52] <taiden> that they dont allow me to call a subroutine that contains other subroutines
[16:40:48] <taiden> i have this gcode file that works perfectly but whenever i try to call it from within my fixture ngc it just breaks and i think it's because emc2 doesn't particularly enjoy subroutine files that call other subroutines
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[16:41:35] <jdh> are the subs in descending nesting order in the file?
[16:42:06] <taiden> it's o<part_base> which contains o100, o101, o102
[16:42:19] <taiden> and from my fixture file i am trying to do o<part_base> call
[16:42:50] <taiden> part_base.ngc is in my subroutines folder which is known to be working
[16:43:25] <jdh> I had some seemingly strange ordering problem with multiple subs.
[16:43:40] <jdh> they had to be in the file before they were called.
[16:43:48] <taiden> yeah, i have them at the beginning of the file
[16:44:05] <taiden> the ngc file works perfectly fine if it's not being called from the fixture ngc
[16:44:15] <jdh> and if sub2 calls sub1, sub1 has to be in the file before sub2
[16:45:24] <taiden> yes
[16:45:35] <taiden> i'll just pastebin the code
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[16:47:48] <gmagno> Hello! :) "Can't run a program when not homed" Why?? I've already done Home axis! :-S
[16:47:58] <taiden> http://pastebin.com/YTBLjCmN
[16:48:03] <taiden> home again!
[16:48:11] <gmagno> didn't work
[16:48:14] <gmagno> tryed many times
[16:48:16] <jdh> gmagno: do all the axes have the homed thing by them?
[16:48:16] <taiden> make sure the bmw looking icon is next to each axis
[16:48:48] <gmagno> jdh, :-o
[16:48:53] <gmagno> jdh, thanks a lot!!
[16:49:11] <gmagno> jdh, sometimes I feel really stupid
[16:49:14] <gmagno> :-S
[16:49:19] <jdh> me too!
[16:49:44] <taiden> me four!
[16:50:57] <taiden> "unable to open file 102"
[16:53:49] <gmagno> :D
[16:55:25] <gmagno> DAMN it's really working!! hehehehe I was getting some "RTAPI: ERROR: Unexpected realtime delay on task1" errors, but not anymore, and have no idea what I've done... The fact is that it is working :D
[16:55:54] <taiden> its a good feeling
[16:56:09] <taiden> so im pretty sure that when I call part_base from the subroutines directory
[16:56:17] <taiden> it's ignoring everything in the file other than that subroutine
[16:56:23] <gmagno> i'm gonna test with some simple patters now, to see if the motors are really moving as they should (i'm doing some tests off the CNC structure. Just with the electronics)
[16:56:51] <jdh> probably true. split the others in to named subs and call them that way?
[16:57:06] <taiden> sigh haha
[16:57:10] <taiden> yeah
[16:57:16] <taiden> can't i just do an include of some sort?
[16:57:22] <taiden> would make things so much easier
[16:57:48] <jdh> yeah
[16:58:15] <taiden> i can't seem to find it in documentation
[16:58:23] <jdh> make up an m4 file and make axis use m4 as a filter
[16:59:08] <taiden> any search in the docs for m4 just gives me spindle start mcode
[17:00:15] <jdh> m4 is a macro processor... man m4
[17:00:34] <taiden> no manual entry for m4 heh
[17:00:41] <jdh> wow
[17:00:50] <taiden> just another day mucking around in linux haha
[17:01:05] <jdh> I thought everything had m4. Never used it for anything other than sendmail though.
[17:01:31] <taiden> there must be some way to do an inline include with emc2
[17:01:36] <taiden> seems so trivial
[17:02:16] <jdh> I don't think there is.
[17:02:31] <taiden> wwjdhd
[17:03:42] <jdh> make it work.
[17:04:51] <taiden> im' on it!
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[17:08:05] <Tom_itx> cradek where are you located?
[17:08:28] <Tom_itx> you mentioned stewart's machine above and i thought you may be nearby
[17:14:10] <Tom_itx> morning? andypugh
[17:15:02] <taiden> jdh: I put the subroutines in separate files and it works
[17:15:21] <taiden> i'm not thrilled with the method but the result is perfectly fine and that's all that matters!
[17:16:02] <jdh> things that work are better than things that don't work, even if they don't work in the way you want them to work.
[17:16:25] <mazafaka> Heh, have to realise that 33'' tyres for regular axles of this vehicle is the maximal leaving the rig being reliable, and 35'' for portal axles.
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[17:17:12] <mazafaka> s/portal axles/geared axles
[17:23:45] <andypugh> Tom_itx: Very much evening. 1823
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[17:35:04] <andypugh> mazafaka: Aren't the two things equivalent? or are portal a subset of geared?
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[17:48:36] <tjb1> andypugh: you here?
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[17:54:56] <IchGuckLive> Hi all B)
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[18:01:11] <Jymmm> syyl_: Did you say you deal with plastic extrusion by chance?
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[18:03:10] <andypugh> tjb1: I wasn't
[18:03:33] <Jymmm> tjb1: He's still not
[18:03:50] <Jymmm> tjb1: only in spirit
[18:04:16] <tjb1> Do your elo touchscreens hiss?
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[18:04:51] <Jymmm> Is that a snake on your touchscreen, or are you just happy to see me?
[18:04:55] <andypugh> Not that I have noticed. But I only have one
[18:05:17] <Jymmm> tjb1: like contonous staticy sound?
[18:05:22] <tjb1> Yes
[18:05:29] <andypugh> But it is possibe you can hear a backlight inverter if your ears are a lot younge than mine.
[18:05:38] <Jymmm> sounds liek the high voltage inverter board
[18:06:34] <tjb1> Its really annoying
[18:06:46] <Jymmm> tjb1: easy enough to replace once you find the PCB
[18:06:51] <andypugh> Can you go to a shop and see if they all do it?
[18:07:06] <tjb1> Replace what? the whole board?
[18:07:07] <IchGuckLive> msg NickServ identify Nimitz
[18:07:22] <andypugh> If you can hear it over the noise of your CNC machine then I suspect it is not right.
[18:07:53] <Jymmm> IchGuckLive: your passwords suck, I'd suggest you change it to something far more secure and difficult
[18:08:28] <IchGuckLive> Jymmm: thats the way it is
[18:08:36] <tjb1> Time to message the seller
[18:08:41] <andypugh> tjb1: The inverter boards are generally separate: http://www.ebay.co.uk/itm/400299816740
[18:08:49] <tjb1> If they think I am paying return shipping they are in for a paypal dispute :)
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[18:10:11] <andypugh> <heads off to the workshop>
[18:10:17] <alex4nder> tjb1: don't go nuts, it could have been damaged in shipping. I've sold stuff on eBay and the buyer got it damaged, and they flipped the fuck out and assumed giant conspiracy theories.
[18:10:41] <tjb1> I thought linuxcnc had touchscreen drivers installed?
[18:11:35] <Jymmm> tjb1: http://www.youtube.com/watch?v=--4U4BkulC0
[18:15:46] <tjb1> Is linuxcnc 32bit?
[18:17:35] <IchGuckLive> tjb1: http://buildbot.linuxcnc.org/
[18:18:15] <tjb1> I downloaded the one built with ubuntu
[18:20:34] <tjb1> Well I will sort this out with the seller first
[18:21:19] <IchGuckLive> witch are you locking for main woraroud just miling
[18:21:54] <tjb1> ??
[18:23:15] <IchGuckLive> Main use of linuxcnc is
[18:23:35] <tjb1> Plasma
[18:23:45] <Jymmm> IchGuckLive: Just FYI.... you want "which", not "witch" (flying broom and tall black hat)
[18:26:45] <Jymmm> HAHAHAHAHAHAHAHA http://www.youtube.com/watch?v=-bkxOo41VSg&NR=1&feature=endscreen
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[18:33:19] <tjb1> This sucks that the monitor doesnt work right...
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[18:34:49] <jdh> doesn't work right or is just loud?
[18:36:39] <tjb1> Well I tried with OS X and everything was backwards and I dont feel like playing with Linux
[18:37:13] <IchGuckLive> Someones knows if i can grab the LF in Gedit
[18:37:39] <archivist> \n
[18:38:13] <jdh> which osx?
[18:39:24] <IchGuckLive> archivist: THANKS B) :D
[18:41:34] <tjb1> lion
[18:43:16] <jdh> that has the backwards touchpad thing?
[18:44:57] <jdh> never spent much time on osx, but lots of elo's in windows. The calibration usually makes them perfect.
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[18:46:59] <tjb1> Well the seller is decent
[18:47:16] <tjb1> I called and he is sending a replacment out today and I send it back, tell them how much shipping was and they will refund shipping
[18:47:34] <jdh> nice.
[18:47:36] <jdh> how much was it?
[18:47:41] <tjb1> 71.34
[18:47:53] <jdh> cheap, small?
[18:48:16] <tjb1> 15"
[18:48:22] <tjb1> http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=190691418362&ssPageName=ADME:X:AAQ:US:1123#ht_1210wt_1398
[18:48:32] <tjb1> Perfect for a cnc controller
[18:48:51] <tjb1> Also got the guy to ship it normal fedex, smartpost took over a week
[18:51:19] <spangledboy> Hi. I've been trying to register on the linuxcnc.org forum without success - is there a problem with it ATM?
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[18:53:55] <skunkworks> spangledboy: do you have a gmail account?
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[18:56:25] <tjb1> http://www.alliedelec.com/search/productdetail.aspx?SKU=70163119
[18:56:28] <tjb1> Buy it up
[18:56:31] <tjb1> incorrect price :)
[18:57:42] <spangledboy> skunkworks: yes, I do have one, but I just tried again using my work email - it's let me through now. Thanks anyway!
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[19:05:25] <Jymmm> tjb1: cap not included =)
[19:05:35] <Jymmm> (ususally)
[19:05:38] <tjb1> Its over $100 in the catalog for what I just posted
[19:05:40] <tjb1> :)
[19:05:56] <tjb1> I dont need no stinkin cap
[19:05:57] <tjb1> :P
[19:06:24] <Jymmm> which is $21
[19:06:47] <tjb1> Still winning
[19:08:09] <tjb1> See what ends up in the mail
[19:08:13] <tjb1> It says 5 pieces
[19:09:03] <tjb1> T-slots is pretty bad about answering emails
[19:10:11] <tjb1> Jymmm: http://www.cnczone.com/forums/diy-cnc_router_table_machines/157235-how_parfact_drawing_image.html
[19:12:00] <Jymmm> tjb1: what am I suppose to be looking at here?
[19:12:08] <tjb1> What does it say?
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[19:12:22] <Jymmm> why would I know (or care)?
[19:12:48] <tjb1> Because you should.
[19:12:59] <Jymmm> and the guy is from India *shrug*
[19:13:14] <IchGuckLive> as we all discussed yesterday O-word Call i made a quick Vid Tutorial on it to explain
[19:13:17] <IchGuckLive> http://www.youtube.com/watch?v=pHWBy7VA9DA
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[19:18:07] <IchGuckLive> Jymmm: did you see me working with the traktor in the garden -> http://www.youtube.com/watch?v=QT1gt9lhbnM
[19:19:13] <tjb1> Thats one hell of a rototiller
[19:19:46] <IchGuckLive> tjb1: large garden large mashine
[19:19:57] <tjb1> *machine :)
[19:19:58] <IchGuckLive> ok im off by today
[19:20:04] <Jymmm> IchGuckLive: GREAT! You can come over and do mine now =)
[19:20:23] <IchGuckLive> Jymmm: i hear that 100times a Year
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[19:21:26] <tjb1> I wonder what translator extremetools used
[19:22:17] <andypugh> tjb1: My touchscreen was backwards _and_ 90 degrees out when I first plugged it in. A calibration sorted it out.
[19:22:35] <tjb1> I checked the calibration, nothing about orientation
[19:22:42] <tjb1> or is this software calibration?
[19:25:07] <andypugh> Is that IchGuckLive's 5-axis foam cutter? http://youtu.be/wT_ndXDZ0DU
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[19:27:31] <tjb1> Now the monitor wont even display anything...
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[19:28:32] <tjb1> Turns on for a second then back off
[19:29:11] <andypugh> Are the screws done up in the connector?
[19:29:45] <andypugh> tjb1: And yes, I meant the software cal.
[19:29:50] <tjb1> http://www.fixya.com/support/t757506-elo_touch_screen_wont_stay
[19:29:58] <tjb1> Heh so it wont stay on because of bad backlight inverter
[19:30:02] <tjb1> and hence the noise
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[19:31:33] <tjb1> Well I got it on and it sure is making a noise...
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[19:36:36] <Tom_itx> go down to your local hardware store and get a new backlight inverter
[19:37:42] <tjb1> your kidding right
[19:37:51] <tjb1> buy a backlight inverter at a local hardware store?
[19:38:04] <Tom_itx> i presume you need to use the 'touchy' interface if you plan on using a touch screen with linuxcnc
[19:38:24] <Tom_itx> you just never know if i am nor not :)
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[19:42:20] <tjb1> yeah no hardware store around here would sell that
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[19:43:41] <tjb1> I got it working correctly andypugh
[19:49:01] <tjb1> Color is a little off :)
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[20:07:39] <Nick1> hi, im trying to ./configure make in suse 12 but it says im missing a c compiler?
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[20:16:16] <archivist> use the livecd or suffer as you need a real time kernel and follow http://wiki.linuxcnc.org/cgi-bin/wiki.pl?Installing_EMC2#On_Ubuntu_10_04_or_8_04_from_source
[20:17:21] * Jymmm chuckles
[20:20:31] <archivist> just being honest
[20:21:24] <Jymmm> archivist: I COMPLETELY understand, that's why I chuckled. Either take what it is, or suffer the agony getting on another distro.
[20:23:05] <archivist> getting stuck at no C compiler means exceeeeeeding difficulty at adding a realtime kernel
[20:23:06] <tjb1> Ah its wonderful being able to call a shipping company and asking them to hold for pickup and they are like "Sure!"
[20:23:56] <djdelorie> even better when they offer to put it in your pickup with one of their forklifts :-)
[20:25:45] <archivist> I did that once, the vehicle was a little unsteady on the way home
[20:26:21] <Jymmm> djdelorie: and you hae a fubar'ed forklift driver
[20:27:05] <archivist> had to remove the roof to get the mill out the rear when I got back home
[20:28:22] <djdelorie> I had that problem with an upright air compressor. HD put it in the truck, we tied it down nice and good, and it was 7" too tall for my garage.
[20:28:26] <Jymmm> archivist: sawzall?
[20:28:35] <djdelorie> had to disassemble it anyway as it was too heavy to carry to the cellar anyway.
[20:28:47] <archivist> Jymmm, an older version of http://www.warco.co.uk/milling-machines/36-major-milling-drilling-machine.html
[20:29:13] <Jymmm> oh, heh. I was thinking BP sized.
[20:29:15] <archivist> with a different badge
[20:29:46] <Jymmm> http://www.warco.co.uk/36-99-thickbox/major-milling-drilling-machine.jpg
[20:29:53] <archivist> was glad to get rid, they were/are rubbish
[20:30:04] <Jymmm> not useful at all?
[20:30:26] <archivist> round column and not square
[20:30:33] <Jymmm> ah
[20:31:07] <archivist> and poor clamping of column and quill
[20:31:11] <tjb1> Im just picking up my extrusions but have you ever tried to have UPS or Fedex hold something?
[20:31:15] <tjb1> Like pulling teeth
[20:31:25] <jdh> tjb1: click 'hold for pickup'
[20:31:29] <jdh> takes seconds
[20:31:32] <tjb1> Thats not offered around me
[20:32:02] <djdelorie> I've had both ups and fedex hold for pickup
[20:32:34] <tjb1> The 800 number told me the local fedex doesnt have a phone when I asked for the phone number
[20:33:38] <djdelorie> perhaps you have to give instructions to the shipper, not fedex, so they have to call you?
[20:34:01] <jdh> fedex.com, track, 'hold'
[20:34:03] <djdelorie> i.e. have the shipper put "hold for pickup, call 555-1212 to schedule" or something
[20:34:27] <tjb1> They said the shipper required an attempt at delivery
[20:34:33] <djdelorie> ah! right, I remember that checkbox.
[20:34:46] <tjb1> I told the guy to call and have it held, I called fedex again and they said that no one can have it held without an attempt
[20:34:52] <djdelorie> have you tried talking to the shipper?
[20:34:58] <tjb1> This was a while ago
[20:34:59] <tjb1> Last year
[20:35:03] <djdelorie> weird
[20:35:24] <tjb1> Its like talking to verizon customer service, every call is a new rep and every rep says something else
[20:35:31] <djdelorie> so let them attempt and pick it up the next day :-)
[20:35:34] <tjb1> I did get one to email the local fedex and have it held
[20:35:52] <tjb1> The local fedex called and said they had emails saying attempt delivery and emails saying hold and they werent sure
[20:36:08] <tjb1> So apparantly some assholes at fedex were telling them not to hold it :)
[20:36:43] <djdelorie> well, next time check the "hold" box on fedex.com and let us know if it works :-)
[20:36:58] <Jymmm> tjb1: damn dude, you are all bent out of shape over shipping, touch screen, now package hold
[20:37:01] <skunkworks> tjb1: I think you need to figure out a way to decompress... :)
[20:37:19] <tjb1> Living in the middle of no where sucks.
[20:37:23] <Jymmm> I know, ship yourself somewhere nice =)
[20:37:24] * djdelorie is lucky, my wife's workplace has loading docks and forklifts, I just have stuff sent there.
[20:37:49] <skunkworks> tjb1: where is nowhere?
[20:37:55] <tjb1> central pa
[20:38:08] <tjb1> Not even highspeed internet here :)
[20:38:19] <djdelorie> I have a t-shirt that says "Deerfield NH - it's not the end of the world, but we can see it from here."
[20:39:29] <Jymmm> Heh "Central PA" map says "State Game Lands Number 13". When you have to number lands that pretty much sounds like bfe to me =)
[20:39:58] <Jymmm> But REALLY BFE when you get to Area 51,52,53
[20:40:56] <Jymmm> Hourly flights departing Vegas to Area 51, so not THAT much bfe =)
[20:41:10] <Jymmm> maybe every 20m
[20:41:13] <tjb1> Im surrounded by state game lands
[20:41:35] <Jymmm> So go watch some deer playing or sumtin
[20:41:51] <tjb1> Haha...deer
[20:41:58] <tjb1> About 5 in the whole state
[20:42:09] <tjb1> Insurance companies keep releasing coyotes
[20:42:19] <Jymmm> State Game Lands Number 66.
[20:42:41] <Jymmm> http://goo.gl/maps/6n6o
[20:43:11] <Jymmm> WE HAVE A WINNER!!! "State Game Lands Number 240"
[20:43:39] <Jymmm> tjb1: You are now OFFICIALLY in BFE, congradulations!!!
[20:43:48] <tjb1> search 15757
[20:43:53] <tjb1> thats the zipcode im in
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[20:44:50] <Jymmm> tjb1: Just feel lucky you're not north of I80 =)
[20:45:03] <tjb1> i go to school in 17701
[20:45:06] <tjb1> thats north of 80 :)
[20:45:09] <tjb1> little philly
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[20:45:57] <Jymmm> http://goo.gl/maps/U322 Area 51
[20:48:03] <JT-Shop> taiden: yep
[20:52:58] <DJ9DJ> gn8
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[21:15:46] * JT-Shop goes to have a nice nap to recover from the heat
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[21:25:38] <andypugh> Turned out nice: https://picasaweb.google.com/lh/photo/JTR29Tkv4zcmFph_DvNYRdMTjNZETYmyPJy0liipFm0?feat=directlink
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[21:26:33] <Connor> andypugh: wHAT IS IT ?
[21:26:46] <andypugh> The clues are all there :-)
[21:27:08] <Connor> I'm thinking a encoder..
[21:27:44] <andypugh> Pretty much, yes.
[21:28:07] <andypugh> It holds the Hall sensors and the motor power too.
[21:28:19] <Connor> Ah.
[21:28:22] <Connor> For what motor?
[21:29:47] <andypugh> This onw: http://youtu.be/WEI6TBwydqs
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[21:36:10] <Tom_itx> Jymmm, find all the bomb testing pot holes around there
[21:36:25] <Tom_itx> they're not far away
[21:37:01] <Tom_itx> andypugh that's sexy, what's it for?
[21:37:25] <andypugh> I will tell you when the patent application is in.
[21:37:29] <andypugh> :-)
[21:37:32] <Tom_itx> haha
[21:37:40] <Tom_itx> did you make the board too?
[21:37:44] <Tom_itx> err have it done
[21:38:25] <andypugh> I had those nice people at Seeedstudio make it for me. At $14 for 10 delivered it's not worth staining the kitchen sink.
[21:38:41] <Tom_itx> no i knew it was mfg
[21:38:51] <Tom_itx> just didn't know if you did the design
[21:38:59] <andypugh> Yes, my own design.
[21:39:16] <Tom_itx> did you use eagle or something else? geda...
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[21:40:27] <Tom_itx> i see spots for some hall sensors :)
[21:40:41] * Tom_itx keeps prying...
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[21:45:26] <andypugh> I used DesignSpark. I want to get into gEDA, but the learning curve is rather steep.
[21:46:15] <andypugh> I don't get on with the Egle UI. DesignSpark is more convetional (and is also free with no size limits)
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[21:47:30] <Tom_itx> i've used eagle a long time so i'm rather used to it
[21:49:55] <djdelorie> I'm usually around on oftc:#geda nights (andy: i.e. when you're asleep) to help with the learning curve.
[21:50:15] <djdelorie> although we admit gEDA is in the "hard to learn, powerful once you do" category.
[21:50:25] <PCW> I tried Eagle a long time ago and found its UI rather hostile (a HUI ? )
[21:50:50] <djdelorie> I found Kicad entirely non-intuitive, and it's touted as the "easy to learn" option. Maybe I'm biased.
[21:51:11] <Tom_itx> for the price it's hard to beat
[21:51:28] <djdelorie> it still costs your time in the long run
[21:51:39] <Tom_itx> it doesn't compete with the high end cad packages
[21:52:07] <Tom_itx> even with them you still have parts to make
[21:52:07] <mozmck> I think intuitive depends a lot on expectations...
[21:52:12] <Tom_itx> they're not all provided
[21:52:16] <djdelorie> IMHO tools should be evaluated based on the post-learning-curve ease of use. I mean, how many of us avoid a great mill because of the one-time setup effort?
[21:52:58] <djdelorie> I tried eagle because it had a huge parts library. First part I used had the wrong pin spacing (a DB25 connector).
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[21:53:16] <PCW> I usually make my own library objects anyway
[21:53:17] <Tom_itx> djdelorie, how long ago was that?
[21:53:18] <djdelorie> Nearly all EDA packages require you to learn how to make parts, eventually, because they keep inventing new parts ;-)
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[21:53:23] <djdelorie> it was a while ago.
[21:53:34] <Tom_itx> their libs have improved alot over the years
[21:53:42] <Tom_itx> they didn't used to have many at all
[21:53:54] <Tom_itx> i've got 3-400 libs now
[21:54:17] <Tom_itx> i must say, element 14 ruined it though
[21:54:34] <djdelorie> I've heard from folks using gEDA in a corporate EDA environment who like the sparse text-based library, because they're going to make their own anyway
[21:54:47] <djdelorie> but, to each their own
[21:54:50] <PCW> and typically with big parts, I make them with a program
[21:55:06] <djdelorie> yeah, geda has lots of library component generator scripts and stuff
[21:55:10] <Tom_itx> PCW what does mesa use?
[21:55:26] <djdelorie> even one or two scrit languages designed specifically for library creation
[21:55:28] <djdelorie> script
[21:55:31] <Tom_itx> altium and pads are nice but cost alot
[21:55:40] <Tom_itx> i really didn't like pads much
[21:55:50] <Tom_itx> and haven't used altium
[21:56:06] <PCW> yeah i just futz with an existing script for new parts mainly
[21:57:36] <PCW> mung the the spreadsheet into a schem/decal with our MakeBGA script
[21:58:15] <PCW> We use Pads (now Mentor)
[21:58:20] <Tom_itx> yes
[21:59:03] <PCW> Thinking about Altium though
[21:59:25] <Tom_itx> i'm sure they both have comparable high end features
[21:59:30] <alex4nder> Altium is like selling your soul to the devil
[22:00:04] <andypugh> I installed DesignSpark because is it supported and run by RS components and I imagined that it might have a link between the RS part numbers and the component libraries. I was disappointed in that.
[22:00:32] <Tom_itx> andypugh that's what element 14 did with eagle
[22:01:07] <andypugh> Yes, I think RS bought out DesignSpark because Farnell bought out Eagle
[22:02:32] <andypugh> In the UK you tend to either use the RS catalogue or the Farnell one. I don't think all that many people use both.
[22:03:02] <Tom_itx> they're more expensive here so i don't use them much unless they really have a sale going on
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[22:08:12] <JT-Shop> PCW: is SoftDMC something you download to the fpga to program how it reacts to inputs?
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[22:10:43] <JT-Shop> andypugh: nice encoder bits
[22:11:24] <andypugh> I am pleased with the machined part. So pleased I might have it anodised :-)
[22:11:24] <JT-Shop> is it brass or just the lighting?
[22:11:45] <andypugh> The inner parts of the motor are brass, yes.
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[22:12:05] <Tom_itx> ahh is this part of that motor you're working on?
[22:14:25] <andypugh> It is, yes. I had it all together then decided I didn't like the way that the encoder parts and motor cables connected (soldered and glued, basically). Then when I broke a wire I decided on a major rework.
[22:15:02] <Tom_itx> what sort of motor is it?
[22:15:20] <Tom_itx> i made some test pieces for someone that wanted to try their hand at a pancake motor
[22:17:38] <PCW> JT-Shop its an alternate FPGA config that contains a complete motion controller (that is a trajectory generator and a stepgen or encoder/PID --> PWM for servo)
[22:18:46] <JT-Shop> ok, I was looking for some way to have an input make a servo go so many degrees or until a torque is reached
[22:18:49] <andypugh> Tom_itx: It's a brushless motor of LRK construction, 14 magnets, 12 poles.
[22:19:03] <JT-Shop> and git an output if torque is reached
[22:19:11] <JT-Shop> s/git/get
[22:19:41] <Tom_itx> andypugh, this is what they have so far: http://designerthinking.com/pancake.html
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[22:21:13] <PCW> Thats possible but still needs a host so theres really not much advantage over HostMot2 unless you need high sample rates (up to 50 KHz or so)
[22:22:17] <JT-Shop> do any of the cards fill the host part? I don't want a PC if possible
[22:24:59] <andypugh> Tom_itx: I have no idea what he is doing towards the end :-)
[22:25:20] <Tom_itx> me either
[22:25:44] <andypugh> I think he needs CNC-milled formers.
[22:25:50] <Tom_itx> trying to wind the wire to end up with 3 or 6 phases
[22:25:56] <Tom_itx> probably so
[22:25:56] <PCW> Not really, they are almost always used with PCs
[22:26:17] <PCW> (but dont need real time)
[22:26:19] <JT-Shop> I guess a 525 motherboard is small enough
[22:26:26] <JT-Shop> ok, thanks Peter
[22:26:30] <Tom_itx> andypugh he doesn't have much to work with
[22:26:47] <Tom_itx> JT-Shop, and cheap
[22:27:08] <andypugh> PCW: How much work does the host need to do? Could an Arduino work?
[22:27:24] <PCW> Probably
[22:27:38] <andypugh> Hmm. Raspberry Pi has USB. SO has the 7i43...
[22:27:52] <JT-Shop> Tom_itx: I'm looking for small and cost effective for a simple task
[22:27:55] <PCW> Yeah USB would work
[22:28:13] <Tom_itx> arm are cost effective for sure
[22:28:25] <JT-Shop> I have an Arduino
[22:28:27] <PCW> what kind of motor drive?
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[22:28:47] <Tom_itx> JT-Shop, is it a mega 328?
[22:28:48] <JT-Shop> I've not determined that yet
[22:29:17] <JT-Shop> Tom_itx: I'd have to look and see, it's not very old maybe 6 months
[22:29:26] <Tom_itx> probably is hten
[22:29:29] <Tom_itx> then*
[22:29:39] <JT-Shop> PCW: something in the 80-100 watt range
[22:29:49] <PCW> OK
[22:30:12] <PCW> so pretty small
[22:30:36] <JT-Shop> yes, think electric nut driver for small screws
[22:31:29] <PCW> so like a torque wrench?
[22:31:51] <JT-Shop> yes
[22:32:01] <PCW> just one off?
[22:32:16] <JT-Shop> for now
[22:32:30] <JT-Shop> if it works I will need more
[22:32:31] * Tom_itx senses JT-Shop is up to something
[22:32:49] * JT-Shop has an idea :-)
[22:33:08] <djdelorie> you missed the obligatory evil laughter...
[22:33:08] <PCW> we really dont make anything Ideal as most of our stuff is geared for multi-axis
[22:33:32] <Tom_itx> JT-Shop does it need fwd and rev... full hbridge?
[22:33:39] <JT-Shop> yes
[22:33:52] <JT-Shop> would the 3c20 work with the ardunio?
[22:34:13] <PCW> Yes
[22:34:30] <PCW> but its only 3A peak
[22:34:40] <andypugh> Hmm, JT-Shop. Maybe use _just_ an Arduino? http://youtu.be/oyeJfNg3NfQ
[22:35:08] <andypugh> That's just an Arduino and a 3-phase MOSFET
[22:35:10] <Tom_itx> i was thinking of a controller for electric planes
[22:35:18] <Tom_itx> but i don't think they have reverse
[22:35:25] <Tom_itx> i know someone that made those
[22:35:33] <PCW> Yeah you could just use an Arduino and a HBridge with current sense
[22:36:10] <JT-Shop> thanks, I'll try and figure that out
[22:38:14] <djdelorie> andypugh: that three-phase mosfet is very similar to the inverter chip I use in my bldc board
[22:38:37] <Tom_itx> iirc, this is 3A: http://tom-itx.dyndns.org:81/~webpage/3995_hbridge/A3995_Hbridge_top.jpg
[22:38:41] <Tom_itx> kinda small
[22:39:00] <PCW> andypugh: did you see on cnczone someones making a sserial remote?
[22:39:10] <andypugh> JT-Shop: If I recall correctly, in that servo drive I had a single channel of PWM into the "enable" pin of an octal buffer, and then just switched on and off the high and low side drivers in a simple sequence.
[22:39:10] <djdelorie> and I think the chip I use could be arduino-driven
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[22:39:59] <andypugh> PCW: No, I didn't, but I have been tempted to do it myself. (more specifically, I have wondered if you could make an Arduino library to act like a sserial remote)
[22:41:08] <PCW> The firmware updater has some hints if the Arduino cant do 2.5 MB (it changes the baud rate for example)
[22:41:33] <andypugh> I have enough projects though.
[22:41:45] <Tom_itx> aww you need a couple more
[22:42:49] <PCW> the tough part on the remote is all the timing
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[22:46:08] <tjb1> Turning the brightness to 20 and I can practially get rid of the static and its now just a high pitched whine
[22:47:27] <jdh> mine goes to 21!
[22:49:04] <andypugh> tjb1: That sounds a lot like the inverter board then. I would be tempted to have a look at it, see if there is anything loose, and possibly smother it in epoxy.
[22:49:22] <tjb1> Well a replacement has been sent out
[22:49:32] <tjb1> The board is almost toast, I have to play with it a while before it will turn on while cold
[22:50:08] <tjb1> What exactly makes the noise, the transformer?
[22:51:17] <Tom_itx> check for bad solder joints
[22:53:00] <andypugh> tjb1: Yes, the transformer. However, if you can hear it then it might be running at a much lower frequency than intended due to a problem elsewhere on the board.
[22:53:13] <tjb1> I cant see how to get the monitor apart
[22:53:17] <tjb1> No screws or anything
[22:53:26] <JT-Shop> andypugh: I think I understand what you said
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[22:54:11] <andypugh> JT-Shop: When?
[22:54:30] <andypugh> Are we talking about inverters, or inverters :-)
[22:54:32] <JT-Shop> about the servo drive you had
[22:54:44] <andypugh> Ah, inverters then.
[22:54:58] <JT-Shop> just when I thought I understood...
[22:55:09] <andypugh> Motor inverter :-)
[22:55:24] <JT-Shop> ah ok
[22:55:35] <andypugh> The reason to use the buffer chip was to get 6 channels of PWM all in exact phase.
[22:55:58] <andypugh> Something that the Arduino doesn't seem great at.
[22:56:03] <JT-Shop> I'm a little slow from the heat 350 miles on the bike today and the afternoon was 39C
[22:56:39] <andypugh> As long as you have a proper commutation sequence there is no shoot-through risk, as no phase goes straight from positive to negative without 60 degrees od "off"
[22:57:13] <tjb1> got the cover off
[22:57:51] <andypugh> The complicated part of that board was actually getting the Arduino to _also_ read the Resolver. A motor with encoder and Halls would make it all hugely simpler.
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[22:58:20] <Tom_itx> it might be a super task for an xmega
[22:58:24] <tjb1> anything I shouldnt touch in here andypugh
[22:58:37] <Tom_itx> yeah the high voltage stuff
[22:58:48] <andypugh> Don't ask me. Electronics is a mystery to me :-)
[22:59:02] <JT-Shop> I need a solution for the electronic challenged LOL
[22:59:03] <Tom_itx> you will know when you find it
[22:59:27] <Tom_itx> JT-Shop, are you trying to commutate 6 phases?
[23:00:09] <andypugh> JT-Shop: You don't sound like you need a 2kW 600V driver. So it might all be rather easier.
[23:00:14] <JT-Shop> no, I'm trying to spin a servo a number of degrees of rotation and stop on torque
[23:00:21] <Tom_itx> i haven't used any xmegas yet but they seem to be quite the chips for 8bit stuff
[23:00:30] <JT-Shop> andypugh: 100w would be great
[23:01:11] <Tom_itx> 'stop on torque' tells me LAP 'locked antiphase' pwm
[23:02:12] <Tom_itx> i used that method early on, on one of my bots to determine a 45 or 90 degree turn
[23:02:14] <JT-Shop> hmmm
[23:02:19] <Tom_itx> with encoder feedback
[23:02:50] <Tom_itx> it was using a 68332 motorolla chip though
[23:02:59] <JT-Shop> I need for example to turn 720 or until 5 in pounds is reached whatever that would be in current
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[23:03:13] <JT-Shop> 720 degrees
[23:04:23] <tjb1> inverter board a long board?
[23:04:31] <Tom_itx> long skinny
[23:04:38] <tjb1> found it
[23:05:02] <jdh> there are lots of instruction pages for fixing inverters
[23:06:26] <andypugh> JT-Shop: It wouldn't be hard to make a 3-phase motor drive shield for the Arduino. Interestingly I don't seem to be able to find one on the Interwebs.
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[23:06:49] <andypugh> I guess djdelorie's board would be a good start.
[23:07:06] <Tom_itx> andypugh that's why i suggested the xmegas
[23:07:09] <tjb1> Tom_itx: http://www.pchub.com/uph/laptop/628-32282-7839/SAMPO-QPWBGL945IDG-LCD-Monitor-Inverter.html
[23:07:13] <JT-Shop> is he the one you were talking about yesterday?
[23:08:12] <andypugh> JT-Shop: Yes
[23:09:03] * JT-Shop looks in the logs
[23:10:00] <tjb1> What should I poke Tom_itx
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[23:11:31] <Tom_itx> avoid farm animals
[23:11:53] <Tom_itx> check under a magnifying glass for bad solder joints
[23:12:09] <Tom_itx> or preferrably a binocular microscope
[23:12:32] <tjb1> What makes the noise, the transformer there on the right?
[23:12:50] <Tom_itx> maybe a noisy transistor or the choke on the right
[23:13:26] <Tom_itx> plug it in and listen
[23:13:41] <tjb1> i did but i didnt want to get too close :P
[23:13:47] <tjb1> high voltage marked on it twice
[23:14:09] <Tom_itx> just on the right side i think
[23:14:56] <Tom_itx> https://www.google.com/search?q=lcd+inverter+schematic+diagram&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-US:official&client=firefox-a
[23:16:02] <tjb1> i do have a digital stethescope
[23:16:04] <tjb1> try it out
[23:16:57] <Tom_itx> http://dc312.4shared.com/img/QpIo4Wbf/s7/TL494_Inverter_CCFL_LCD_schema.JPG
[23:17:02] <Tom_itx> or similar
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[23:18:51] <Tom_itx> http://lcdparts.net/Inverter3D.aspx
[23:19:37] <tjb1> shoulld I try to reflow all joints on trans?
[23:20:33] <Tom_itx> check the caps too
[23:20:38] <Tom_itx> for loose solder joints
[23:20:53] <tjb1> safe once unplugged?
[23:20:58] <Jymmm> Tom_itx: Area51 doens't have bomb testing, Yuma Proving Grounds does.
[23:20:59] <Tom_itx> generally i find big parts are more suseptible to bad reflow because it takes them longer to heat up
[23:21:18] <Tom_itx> Jymmm right but i've see them on google
[23:21:20] <tjb1> im was going to use a soldering iron and hit each joint :P
[23:21:52] <jdh> look for burnt stuff
[23:22:26] <Jymmm> Tom_itx: You see what they want you to see
[23:22:34] <Tom_itx> of course
[23:22:39] <tjb1> everything looks decent
[23:22:49] <Tom_itx> can i fly over area 51 and take my own pictures?
[23:22:54] <Jymmm> no
[23:22:57] <Tom_itx> :)
[23:23:16] <Jymmm> restricted air space afaik
[23:23:24] <Tom_itx> and land
[23:23:37] <Tom_itx> but it doesn't exhist
[23:23:44] <Jymmm> you can get "sorta" close to area 51
[23:23:56] <tjb1> Tom_itx: should I hit the joints with a soldering iron?
[23:23:58] <Tom_itx> not anymore
[23:24:01] <Jymmm> I've driving thru Yuma Proving Grounds though
[23:24:07] <Tom_itx> tjb1 i would
[23:24:16] <Tom_itx> use some flux on them when you do
[23:24:30] <Tom_itx> Jymmm did you come out glowing in the dark?
[23:24:57] <Jymmm> Tom_itx: sure it does exist. they have flights out of vegas to area51 every 20minutes
[23:25:14] <Tom_itx> i know, they have their own airline and bus service
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[23:26:33] <Jymmm> Tom_itx: Notice when you zoom in things are a bit fuzzy? http://goo.gl/maps/AKzF
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[23:26:56] <andypugh> JT-Shop: One (or two) of these on an Arduino shield, and using a motor with hall sensors would make for a very inexpensive motor drive. http://uk.rs-online.com/web/p/motion-motor-control/6248214/
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[23:27:14] <JT-Shop> thanks Andy
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[23:27:39] <Jymmm> JT-Shop: you up to some brian picking?
[23:27:41] <Jymmm> brain
[23:28:29] <JT-Shop> just trying to find a solution to a problem and yes picking brains
[23:28:30] <andypugh> JT-Shop: I have got rather hung-up on brushless. I guess you could use any of the gazillion simple DC motor driver Arduino shields.
[23:28:45] <Tom_itx> woops, i was gonna tell him that board has 1.5kv on it
[23:29:41] <JT-Shop> this page still points to 2.4 http://wiki.linuxcnc.org/cgi-bin/wiki.pl?LinuxCNC_Pure_Simulator
[23:29:52] <andypugh> Time to log off chaps. I am in Londonderry until sunday now.
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[23:30:02] <JT-Shop> i can't seem to find the linuxcnc-sim link
[23:30:47] <Jymmm> JT-Shop: when it spins the tube for silk screening, is each post have it's own motor typically? http://www.youtube.com/watch?v=6rhlfbTIs7s&feature=related
[23:31:12] <JT-Shop> never seen silk spinning
[23:31:31] <Jymmm> JT-Shop: silk screen PRINTING on tubes =)
[23:32:20] <JT-Shop> looks like the tubes are driven at the print station to me
[23:32:33] <Tom_itx> one motor with a gear that engages when the tube passes over it
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[23:32:47] <Tom_itx> the motor mounted under it
[23:33:13] <Jymmm> That video isn't the best example
[23:34:18] <Jymmm> OH, I saw an idler thing raise up
[23:35:24] <Jymmm> http://www.youtube.com/watch?v=6rhlfbTIs7s&feature=player_detailpage#t=18s
[23:36:50] <Jymmm> oh phuk me... "contact us for a quote" for a UV Curing lamp.
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[23:38:23] <tjb1> still whines like a virgin on wedding night Tom_itx
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[23:40:27] <Jymmm> $2300 You frickin kidding me?! http://www.cureuv.com/total-cure-power-shot-1100-uv-curing-system.html
[23:40:43] <Tom_itx> Jymmm want a cheap source?
[23:40:57] <Jymmm> Tom_itx: high intensity?
[23:40:59] <Tom_itx> go to a cosmetic supply and get one for fingernails
[23:41:01] <Tom_itx> no
[23:41:03] <Tom_itx> also
[23:41:07] <Tom_itx> a fishtank supply
[23:41:25] <Jymmm> Tom_itx: This is to cure UV Inks
[23:41:32] <Tom_itx> that's what i use silly boy
[23:42:03] <Jymmm> Tom_itx: and your exposure time?
[23:42:13] <Tom_itx> http://tom-itx.dyndns.org:81/~webpage/boards/USBTiny_Mkii/silkscreen/silk_batch_cure.jpg
[23:42:20] <Tom_itx> oh a while
[23:42:23] <Tom_itx> give or take a few
[23:42:31] <Jymmm> Tom_itx: I need under 3s
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[23:42:41] <Tom_itx> then you need to spend the bucks
[23:42:53] <Tom_itx> i saw what the local sign shop has
[23:43:03] <Tom_itx> they run them thru on a conveyor
[23:43:21] <Tom_itx> you could come out with a nice tan
[23:43:34] <Jymmm> heh, there's an idea... used tanning bed
[23:43:50] <Tom_itx> probably not the ideal wavelength
[23:44:00] <Tom_itx> but mine does work
[23:44:18] <Tom_itx> http://tom-itx.dyndns.org:81/~webpage/boards/USBTiny_Mkii/silkscreen/silk_batch.jpg
[23:44:27] <Jymmm> I used to work for a company that made UV Curing systems for indistrial "dragon" printers, I'm sure they have tiner bulbs
[23:45:02] <Tom_itx> this box i got was from one such system
[23:45:39] <Tom_itx> some Ca company
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[23:59:53] <r00t-Shed> anyone use the f-engrave app?