#emc | Logs for 2011-03-27

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[02:48:49] <Jymmm> anyone remember those things at the planetarium than spun when hit with light?
[02:49:17] <toastydeath> yeah
[02:49:24] <toastydeath> pinwheel type thing in vacuum?
[02:49:32] <Jymmm> remember the name by chance?
[02:49:42] <toastydeath> nope, sorry =./
[02:49:45] <toastydeath> er =/
[02:50:01] <Jymmm> galvonometer?
[02:54:39] <Jymmm> Radiometer
[02:54:40] <toastydeath> i thought it had radiometer
[02:54:42] <toastydeath> in the name
[02:54:42] <toastydeath> oh
[02:54:44] <toastydeath> you got it
[02:55:11] <Jymmm> google search
[02:55:17] <atom1> http://en.wikipedia.org/wiki/File:Crookes_radiometer.jpg
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[03:23:36] <atom1> anonimasu you around?
[03:24:10] <atom1> meh, probably not. it's 5:24AM there
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[10:36:52] <theos> :)
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[10:41:49] <jthornton> ...
[10:42:23] <BrainDamage> hello, I have a CNC mill, and I wanted to try out emc2, the live cd atm is not an option for me since I need several other programs running, and I'd like to test it if it just works, is there any precompiled kernel for ubuntu 10.10 with rai compiled in or a way to test if it sends signals to the controller even out of realtime mode? ( I don't care if it fucks up some commands, it'd be just to test if communication works )
[10:45:59] <jthornton> stepper?
[10:46:46] <jthornton> http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?Installing_EMC2
[10:48:16] <mrsunshine__> gah
[10:48:19] <mrsunshine__> i hate my lazyness
[10:48:29] <mrsunshine__> i have a cnc mill, why the heck do i not do more stuff with it
[10:48:37] <fragalot> lol
[10:48:49] <mrsunshine__> "oo i need that" .. takes 10 minutes to cad and stuff, but noo, wait until like 2 months when i happend to be somewhere i can buy it insted
[10:49:20] <mrsunshine__> its time that machine starts paying its dues
[10:49:26] <mrsunshine__> its freakin expensive to build :P
[10:49:37] <jthornton> that's why you need to use ngcgui
[10:50:05] <mrsunshine__> jthornton, to whom ? :P
[10:50:14] <jthornton> to youm
[10:51:12] <mrsunshine__> what the heck is that =)
[10:51:16] <mrsunshine__> (lookint at youtube on it)
[10:51:44] <mrsunshine__> looks cool
[10:52:04] <jthornton> I use it on my lathe and rarely have to use cad or cam to make parts
[10:52:22] <fragalot> mrsunshine__: link?
[10:52:32] <mrsunshine__> http://www.youtube.com/watch?v=Bn8T5Fw0ISs
[10:52:35] <mrsunshine__> tho no explenation
[10:52:45] <jthornton> http://www.linuxcnc.org/component/option,com_kunena/Itemid,20/func,view/catid,40/id,3408/lang,english/
[10:52:46] <mrsunshine__> no audio :P
[10:53:12] <mrsunshine__> jthornton, let me guess tho, hard coded for inches? :P
[10:53:25] <jthornton> no
[10:53:53] <fragalot> Hmm
[10:54:00] <fragalot> that "ttt" tab interests me quite a bit
[10:54:02] * fragalot checks it out
[10:54:19] <jthornton> it is VERY powerful and easy to set up
[10:54:25] <mrsunshine__> true type text? :)
[10:54:31] <mrsunshine__> jthornton, have to look more at it =)
[10:55:05] <jthornton> mrsunshine__: don't look, try it!
[10:55:21] <mrsunshine__> jthornton, do not realy have much time for it today :/
[10:55:55] <jthornton> LOL
[10:56:00] <fragalot> crud
[10:56:23] <fragalot> this is when I realize the monitor on my emc2 laptop is broken and the external display is down next to my machine
[10:56:26] <fragalot> xD
[10:59:29] <BrainDamage> jthornton: yeah, stepper, I did check the wiki, but it only mentions how to compile the kernel with rtai patch, I'm asking if there's a precompiled one available outside the live cd, or, if there's a way to test sending some signals without realtime scheduling
[11:00:28] <BrainDamage> atm I compiled emc2 with sim only because it complains I lack the rtai headers
[11:00:53] <jthornton> I'm sure there is some way to send signals I assume you mean over the parallel port???
[11:01:17] <jthornton> why can't yo boot from the LiveCD?
[11:01:23] <jthornton> yo/you
[11:01:51] <BrainDamage> yes, parallel port, sorry for omitting it.
[11:02:25] <BrainDamage> I need several other software running atm, and installing them on the ramdisk on an older distro would be way too troublesome
[11:03:09] <jthornton> so you can't turn this computer off then?
[11:03:33] <BrainDamage> I can turn it off for few minutes, but not any longer
[11:03:56] <jthornton> that does sound challenging
[11:04:02] <BrainDamage> yeah :/
[11:04:07] <fragalot> BrainDamage: why not compile your own kernel?
[11:04:34] <BrainDamage> I wanted to avoid it to keep load low, but I guess I have no choice, I'll renice gcc
[11:04:54] <fragalot> you can compile it on another computer too
[11:05:02] <jthornton> I'd google for parallel port or something that you might do with python or other languages to control the parallel port
[11:05:41] <BrainDamage> basically, I just wanted to test if emc2 could drive my 3 axis cnc mill
[11:05:59] <BrainDamage> if it'd have worked, I might get a dedicated machine for it
[11:06:10] <jthornton> if it takes step and direction there is no doubt it can
[11:06:36] <BrainDamage> yup
[11:07:19] <archivist> just get a dedicated pc, mine are old freebees for machine use
[11:08:06] <jthornton> has anyone used the parallel port header on the D510MO?
[11:09:05] <fragalot> sigh. it takes longer to burn the new EMC2 disk than it took to download >.>
[11:09:20] <jthornton> BrainDamage: the main thing you want to do is to boot from the LiveCD and run the latency check
[11:09:46] <jthornton> fragalot: are you complaining or bragging?
[11:10:17] <BrainDamage> I'll see if I can scavange an old machine to dedicate for it, I guess that'd save me some headaches
[11:11:39] <jthornton> what do you have running the cnc now?
[11:11:42] <fragalot> jthornton: both. :D
[11:11:48] <fragalot> multitasking++
[11:13:05] <anonimasu> atom1: now I am
[11:16:05] <anonimasu> jthornton: tell me your results with that im planning to get one
[11:16:43] * fragalot vaguely wonders if his livecd is actually booting now or not
[11:16:44] <fragalot> :/
[11:17:25] <jthornton> anonimasu: a D510MO?
[11:17:39] <anonimasu> yes
[11:17:46] <anonimasu> or d510 I didnt figure out the difference yet
[11:18:00] * fragalot takes this as a "maybe"
[11:18:27] <anonimasu> I were supposed to order 2 last week but I forgot
[11:18:31] <jthornton> dunno what that might be but D510MO is the motherboard that I bought
[11:18:49] <jthornton> I've put three together
[11:18:58] <fragalot> HOly crap this laptop still has a floppy drive o.O
[11:19:28] <anonimasu> mo = mount olive the chipset...
[11:19:42] <anonimasu> did you use the parport on any of them
[11:19:43] <anonimasu> ?
[11:19:54] <jthornton> no, I was just wondering about that
[11:20:02] <jthornton> it has the header
[11:20:18] <jthornton> where would you get a cable?
[11:20:29] <anonimasu> just order one from where I buy stuff
[11:21:12] <anonimasu> or buy cable and add connectors myself
[11:21:32] <fragalot> Right this one is going in the bin.
[11:21:56] <anonimasu> if it's a pin header
[11:22:49] <jthornton> yea, it is a pin header
[11:23:19] <anonimasu> it should be standard like other pin headers I think
[11:24:11] <jthornton> out of the box the latency test has run for weeks and never goes past 9k ns
[11:24:40] <anonimasu> is that good?
[11:24:48] <anonimasu> it's been a long time since I tested anything
[11:24:58] <jthornton> yes that is good
[11:25:21] <anonimasu> using a ssd drive?
[11:25:59] <jthornton> no, just a cheap hard drive green and quiet ones
[11:28:17] <jthornton> it has a 26 pin header with one pin missing
[11:28:47] <anonimasu> any chance that it might just fit the mesa boards without doing anything at all?
[11:28:50] <anonimasu> :)
[11:29:42] <jthornton> like a 5i20?
[11:34:09] <jthornton> found a place that has com port cable and header...
[11:34:37] <Jymmm> jthornton: GET OUT OF MY JUNK BOX!
[11:36:03] * anonimasu nods
[11:36:25] <anonimasu> jthornton: no not the 5i20
[11:36:32] <anonimasu> the 7i43
[11:38:03] <jthornton> I recall reading something about the 7i43 and the 510... on the mailing list
[11:39:52] <anonimasu> I better find that before i order
[11:40:36] <jthornton> your wanting the 7i43 cause it is cheap? and only has 2 headers?
[11:43:00] <anonimasu> no, because it serves my purpose
[11:43:13] * jthornton wonders when pcw_home will come up with a SATA3 device with anything io
[11:43:25] <anonimasu> it can handle 4 axes for the servos with 2 boards on the same header
[11:43:36] <jthornton> it was something about EPP I think
[11:43:56] <Jymmm> With ThunderBolt, there won't be any need.
[11:44:03] <anonimasu> and then a io board with the 7i37
[11:44:16] <anonimasu> 16 inputs and 8 outputs
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[11:44:55] <Jymmm> jthornton: http://www.apple.com/thunderbolt/
[11:45:16] <anonimasu> three outputs for vfd, one for coolant, one for part unclamp
[11:45:19] <fragalot> does anyone here know of a freeware tool to engrave single vector text?
[11:45:26] <anonimasu> and 16 in for limit switches and home
[11:45:56] <Jymmm> yes
[11:46:02] <jthornton> ttt?
[11:46:14] <Jymmm> inkscape + plugin
[11:48:01] <jthornton> does the parallel port limit your speed vs the pci card?
[11:48:10] <Jymmm> And there is a plugin to output gcode too (iirc)... http://www.evilmadscientist.com/article.php/hershey
[11:48:26] <Jymmm> fragalot: ^^^^^^^^^^^^^^^^^^^^^^^^^^
[11:48:53] <jthornton> fragalot: http://www.linuxcnc.org/component/option,com_kunena/Itemid,20/func,view/catid,31/id,1650/limit,6/limitstart,12/lang,english/#7919
[11:49:37] <jthornton> anyone need a refill while I'm going up to get mine?
[11:49:56] <Jymmm> jthornton: a short stack if you could
[11:50:17] <Jymmm> fragalot: http://wiki.inkscape.org/wiki/index.php/ExtensionsRepository#gcodetools
[11:50:58] * fragalot looks at the above suggestions
[11:52:34] <Jymmm> fragalot: http://www.timeguy.com/cradek/truetype
[11:53:03] <Jymmm> fragalot: http://www.timeguy.com/cradek/01276453959
[11:55:15] <fragalot> I have looked at ttt but I couldn't get it to do letters in a single pass
[11:55:31] <fragalot> about to try the inkscape thing
[11:55:39] <jthornton> I think you have to use a stick font
[11:56:20] <fragalot> all fonts I found were still done in 2 passes
[11:56:50] <fragalot> as for ttt, I have bought a copy of Cut2D which already does normal fonts just fine
[11:57:03] <fragalot> but still no single stroke engraving
[11:57:49] <jthornton> let us know if you get the inkscape thing to work
[11:57:55] <fragalot> Will do
[11:58:06] <jthornton> I tried for a short time but got confused
[11:59:15] <fragalot> lol
[12:01:00] <jthornton> might have been self induced confusion at that time of the evening
[12:07:51] * fragalot now wonders how to go from inkscape -> gcode
[12:08:06] <Jymmm> scroll up fragalot
[12:09:12] <Jymmm> jthornton: did you read thunderbolt?
[12:09:13] <fragalot> whoop smissed that :D
[12:09:58] <jthornton> Jymmm: does your laser use g code?
[12:10:22] <jthornton> I looked at it briefly
[12:10:40] <Jymmm> jthornton: HPGL/2 I believe. Basically the laser acts like a glorified printer
[12:11:30] <psha> fragalot: there is inkscape extension for this
[12:11:50] <Jymmm> jthornton: plotter specicifally. mapping colors to laser settings
[12:12:33] <Jymmm> jthornton: Thunderbolt *IS* PCI-E over a cable
[12:12:59] <jthornton> ?
[12:13:30] <Jymmm> jthornton: And there are bridges to go from thunderbolt to usb,firewire,DVI,HDMI,sata, etc
[12:13:48] <Jymmm> jthornton: Think External PCI-E
[12:14:31] <jthornton> what am I thinking about?
[12:14:52] <Jymmm> jthornton: No more having yo plug in a card into the PCI-E bus, you can use an external cable and get 10Gbps
[12:16:19] <Jymmm> jthornton: With thunderbolt you can have 4 external displays on yout laptop if you wanted =)
[12:17:32] <jthornton> but, I don't want a laptop
[12:18:08] <Jymmm> It was an example, laptops dont have PCI-E SLOTS to plug a card into
[12:18:36] <jthornton> oh
[12:19:27] <Jymmm> jthornton: You could have a thunderbolt to I/O bridge and get 10Gbps speed
[12:19:37] <Jymmm> no need for mesa cards
[12:20:26] <Jymmm> Image one tiny I/O bridge per axis, all talking across Thunderbolt
[12:20:43] <Jymmm> as thunderbolt allows daisychaining
[12:24:44] * fragalot is fighting to get gcodetools to work
[12:26:08] * jthornton hands fragalot a hammer
[12:26:17] <jthornton> how far did you get?
[12:26:50] <fragalot> opening the plugin & getting a traceback error
[12:26:50] <fragalot> :p
[12:27:19] * jthornton is installing inkscape down here atm
[12:29:06] <fragalot> Traceback (most recent call last):
[12:29:06] <fragalot> File "gcodetools.py", line 4601, in <module>
[12:29:06] <fragalot> e.affect()
[12:29:06] <fragalot> File "C:\Program Files\Inkscape\share\extensions\inkex.py", line 215, in affect
[12:29:06] <fragalot> self.effect()
[12:29:08] <fragalot> File "gcodetools.py", line 4549, in effect
[12:29:11] <fragalot> self.engraving()
[12:29:14] <fragalot> File "gcodetools.py", line 3919, in engraving
[12:29:16] <fragalot> x1,y1 = csp_at_t(csp[-2],csp[-1],1)
[12:29:19] <fragalot> IndexError: list index out of range
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[12:36:02] * fragalot gives up for the day
[12:36:32] * Jymmm SERIOUSLY WANTS ONE OF THESE http://www.promise.com/storage/raid_series.aspx?region=en-US&m=159&rsn1=3&rsn3=43
[12:36:51] <Jymmm> It can PXE boot VM's!!!!!
[12:37:12] <Jymmm> It can be a PXE boot server for VM's!!!!!
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[12:38:35] <psha> Jymmm: what's problem? everthing may be pxe boot server, even asus wl500gp wireless router
[12:38:52] <Jymmm> psha: for VM's ???/
[12:39:08] <psha> VM's on NAS?
[12:39:17] <Jymmm> yep
[12:39:25] <psha> VM == virtual machine?
[12:39:29] <Jymmm> yes
[12:39:50] <psha> specs say that it's atom, vm's would be turtle speed
[12:39:59] <Jymmm> nevermind
[12:40:19] <psha> so rephasing you...
[12:40:27] <psha> Jymmm: VM's on NAS ???/
[12:40:27] <fragalot> it's just the boot server, not where the vm actually runs
[12:41:16] <psha> what's problem with pxe boot? it's just a BOOTP response with subsequent feeding of kernel/root
[12:41:38] <fragalot> yeah
[12:41:43] <psha> we have PXE boot of debian installer at work :)
[12:42:03] <psha> so if you get empty computer there without OS it kindly suggests you to install debian :)
[12:42:33] <fragalot> lol
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[12:52:08] <jthornton> fragalot: are you running inkscape on Ubuntu?
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[12:54:12] <fragalot> jthornton: neg, i'm on my XP lappy atm
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[12:59:14] <jthornton> I have it installed out in the shop on my winblows7 computer
[12:59:54] <jthornton> just trying to figure out the proper sudo command to unpack the tar.gz in the usr/inkscape/extensions directory
[13:00:15] <fragalot> lol
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[13:14:12] * jthornton gives up trying to copy the files to usr/share/inkscape/extensions with the file browser
[13:21:35] <jthornton> finally!
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[13:49:58] <SWPadnos> jthornton, if you really want to see how fast that computer is, try installing Ubuntu on another hard drive :)
[13:50:29] <SWPadnos> bbl
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[14:19:19] <fragalot> http://www.27bslash6.com/missy.html lol'd
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[14:43:59] <atom1> what sort of output should a jog wheel output? if i make one i may as well conform to what's already supported
[14:44:37] <atom1> .1, .01, .001 res probably
[14:44:44] <pcw_home> Laptops already have PCIE slots (Express slot)... Not that laptops are good EMC targets...
[14:45:08] <atom1> atom does as well
[14:45:19] <atom1> at least the 525 does
[14:46:08] <pcw_home> Yep
[14:48:14] <JT-Shop> atom1: jog wheel as in MPG?
[14:48:45] <atom1> not sure what MPG is but probably so
[14:49:34] <atom1> i've got some 500 count encoders i thought about adapting
[14:51:05] <JT-Shop> Manual Pulse Generator
[14:51:21] <JT-Shop> usually 100 counts per rev
[14:51:29] <atom1> pendant i guess it's called
[14:51:36] <atom1> yeah i know
[14:51:43] <atom1> i can adapt that with an avr pretty easy
[14:53:26] <atom1> all part of a ghetto mill i'm thinking about building
[14:54:57] <JT-Shop> the distance moved per "click" can be set in hal with a rotary switch or some buttons
[14:55:16] <atom1> oh so i don't need to divide it down first?
[14:56:18] <atom1> if that's the case i might even get it done with a little sot23-6 attiny10
[14:56:50] <pcw_home> We have our pendant interface card working pretty well now, it will probably be released in a month or so
[14:56:52] <pcw_home> still have to decide on the "terminal emulation" for the LCD
[14:57:23] <atom1> is it a 50% duty square wave out or just a short pulse per count?
[14:57:37] <pcw_home> quadrature
[14:58:27] <pcw_home> so 2 ~square waves with 90 deg phase shift
[14:58:32] <atom1> right
[14:58:46] <atom1> the only thing i'd need then is to get the count down to 100 cpr
[14:58:51] <atom1> instead of 500
[14:59:33] <atom1> at ttl or 3.3v level?
[14:59:47] <JT-Shop> pcw_home: what does the pendant interface card plug into?
[14:59:50] <atom1> i'm guessing either would be valid
[14:59:51] <pcw_home> its a little awkward without a real MPG as you want the counts to occur between detents
[15:00:33] <pcw_home> any of our FPGA cards with SSERIAL firmware
[15:01:05] <atom1> right now i'm looking at a 7i43 and maybe a 7i37. would that allow input for one?
[15:01:53] <pcw_home> It needs 2 free FPGA pins and a 1 channel RS-422 adapter
[15:07:59] <pcw_home> or a 7I34, 7I44, 7I47 or 7I52 in the system or 7I42TA and the one channel RS-422 adapter...
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[15:31:51] <atom1> is there an open source pendant project already available?
[15:32:57] <atom1> i'm all about not reinventing the wheel.
[15:33:38] <pcw_home> There may be a Arduino based one around
[15:34:07] <atom1> i'm not a big arduino fan
[15:34:31] <pcw_home> We did our own because we really wanted real-time
[15:35:26] <pcw_home> especially for the MPG dial
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[15:36:29] <atom1> it shouldn't be hard to make it realtime since it's a hand wheel
[15:36:57] <atom1> at least that's my first glance opinion
[15:38:38] <pcw_home> whats hard is the parallelism (supporting keypad, MPGs A-D, LCD all in realtime)
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[17:37:46] <Jymmm> pcw_home: Are you the freak wanting to use STAT for I/O?
[17:37:52] <Jymmm> SATA
[17:39:55] <SWPadnos> no, he's the one making a pendant for use with Mesa FPGA cards
[17:40:03] <SWPadnos> and I think it was PATA
[17:40:06] <SWPadnos> not STA
[17:40:09] <SWPadnos> SATA
[17:40:38] <anonimasu> isnt that problematic as chipset's are always different?
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[17:41:16] <SWPadnos> the PATA interface is pretty standard AFAIK, but you still need external hardware if you want to do anything with it
[17:41:45] <SWPadnos> somebody made a n adapter that could program AVRs using (unmodified) avrdude, which is cool
[17:42:02] <psha> yes, it was IDE, not SATA
[17:42:07] <pcw_home> I've considered ESATA (we use a SATA-PATA bridge already) with PATA interface in FPGA
[17:42:21] <atom1> SWPadnos are you talking about PCI?
[17:42:45] <SWPadnos> atom1, no, I'm talking about IDE, which is also known as PATA or Parallel ATA (vs SATA = Serial ATA)
[17:43:40] <atom1> rue did one
[17:44:02] <SWPadnos> ?PARSE ERROR
[17:44:36] <pcw_home> I may yet try ESATA on the 7I80 (7I80 has overlayable host interface PCB modules)
[17:44:46] <atom1> i'm looking for it
[17:45:11] <atom1> i suggested he post it on hackaday
[17:45:17] <SWPadnos> haven't seen the 7I80 ...
[17:45:45] <SWPadnos> ah, a 3-connector 7I43
[17:46:10] <atom1> i've got one that works with dude as well
[17:46:27] <pcw_home> Its a 7I43 replacement but built in 3 overlayable PCB modules: Host FPGA and I/O
[17:46:49] <pcw_home> the direct I/O one does have 3 connectors
[17:47:18] <pcw_home> Spartan6
[17:48:27] <SWPadnos> pcw_home, it pains me to ask, but are there any LabView drivers for your FPGA and I/O cards?
[17:48:39] <pcw_home> No
[17:48:58] <SWPadnos> lucky you. but there are idiots who could probably use some :)
[17:49:32] <pcw_home> I honestly hate windows enough that I really dont venture that direction any more than I need to
[17:50:01] <SWPadnos> yeah. I'm in the same boat, and I hate LabView even more than Windows
[17:50:18] <SWPadnos> LabView does run on Linux and Mac as well as Windows though
[17:50:20] <atom1> http://eds.dyndns.org/~ircjunk/circuits/ide2isp.png
[17:51:55] <atom1> http://eds.dyndns.org/~ircjunk/tutorials/elex/ata2isp/main.html
[17:52:01] <pcw_home> I think of HAL as text mode Labview...
[17:52:04] <atom1> that's probably better
[17:52:09] <SWPadnos> yes, me too
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[17:53:18] <pcw_home> How does Labview handle real time?
[17:54:23] <SWPadnos> poorly
[17:55:06] <SWPadnos> but there are a lot of non-realtime applications that could use the configurable I/O, and your cards are actually very inexpensive compared even to dumb acquisition cards
[17:55:38] <SWPadnos> things like test systems, where the FPGA could do the really realtime stuff (output or capture a waveform ...)
[17:56:13] <pcw_home> We had a customer Using our SoftDMC motion control with some real time windows variant but it had dreadful latency (>2 ms)
[17:56:45] <SWPadnos> even the custom LabView "realtime" hardware sucked badly when I used it a few years ago
[17:57:26] <SWPadnos> they have an FPGA board and associated software as well (you can make LV diagrams and compile them to FPGA instead of PC code), but it sucked balls
[17:57:33] <pcw_home> Yes if we were bigger and could do more support it would be nice but...
[17:57:41] <SWPadnos> heh, indeed
[17:58:01] <SWPadnos> that's probably why all the acquisition cards are so expensive ;)
[17:59:03] <pcw_home> with the FPGA stuff it hard to guess what people will want, we have a chance a a good opportunity with the USPS but they need QNX support...
[17:59:21] <pcw_home> chance of a
[17:59:40] <SWPadnos> QNX seemed pretty easy to work with when I looked at it a long time ago
[18:01:32] <pcw_home> yea they can use most linux things as examples, but they need LVDS to a sensor --> DMA I can do the firmware but dont have much to give them on a DMA driver
[18:02:31] <pcw_home> QNX DMA driver
[18:02:31] <SWPadnos> well, I'd help but (a) I haven't actually used QNX and (b) I'm swamped :)
[18:03:08] <pcw_home> Yea we hand them a bunch of data books and hope they dont give up...
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[18:07:57] <pcw_home> There's even a demand mode DMA example in HostMot2, written for DAQ application thats pretty close to whats needed
[18:07:59] <pcw_home>
[18:10:43] <SWPadnos> is this for the weather monitoring thing they talked about recently? (if you can say)
[18:12:01] <pcw_home> I dont Know what its for (but maybe a linear optical sensor of some kind) I do know it need 45 MB/sec host transfer rate
[18:12:20] <SWPadnos> ouch, OK. it's trying to read my handwriting :)
[18:13:08] <pcw_home> The original DAQ code was written for a company scanning DNA "chips"
[18:14:10] <Jymmm> SWPadnos: better than reading your mind
[18:14:23] <SWPadnos> yes, and nearly as difficult
[18:14:29] <Jymmm> eh
[18:15:02] <Jymmm> not that hard
[18:15:10] <pcw_home> bbl got some wild artichokes to have at with pick and shovel
[18:15:43] <Jymmm> I prefer garlic and steam basket
[18:16:49] <pcw_home> Well these were originally the edible kid but have reverted to wild form (very nasty perennial week in Calif)
[18:16:57] <pcw_home> kind
[18:17:02] <Jymmm> ah
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[18:17:06] <pcw_home> weed
[18:18:11] <Jymmm> yield for home growing not very good either
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[18:55:27] <brendanjerwin> Hi all. I'm trying to resurrect a python HAL component. It worked about 2 years ago... :) Anyway, it never goes "ready". What should I do to begin debugging this?
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[18:56:04] <brendanjerwin> I am calling .ready() on my hal component, after defining a new pin.
[18:56:44] <micges> brendanjerwin: can you show it for us?
[18:57:03] <brendanjerwin> yeah, dumping to gist right now
[18:58:11] <brendanjerwin> https://gist.github.com/889471
[18:59:19] <brendanjerwin> when I run `halrun` and load this manually, I do see "READY" being printed to stdout. but then it just spins waiting for it to become ready.
[18:59:33] <brendanjerwin> ("READY" is my own debugging print)
[18:59:48] <SWPadnos> what is the name of the .comp file?
[18:59:54] <SWPadnos> (and the resulting executable)
[19:00:15] <brendanjerwin> SWPadnos: RE: me?
[19:00:19] <SWPadnos> yes
[19:00:43] <brendanjerwin> I'm sorry. I don't understand the question...
[19:00:56] <SWPadnos> what is the name of the file you uploaded?
[19:00:56] <brendanjerwin> I'm loading the python script via loadusr -W
[19:01:17] <SWPadnos> something.py - what's the "something" :)
[19:01:38] <brendanjerwin> gotcha. reprap-extruder
[19:01:55] <SWPadnos> ok, and what is the exact line you use to load the component when testing with halrun?
[19:02:32] <brendanjerwin> btw, the file doesnt actually end in .py, I chmod +x it and us !# to load python
[19:02:37] <SWPadnos> ok
[19:03:42] <brendanjerwin> loadusr -W /home/brendanjerwin/emc2/configs/my-mill/reprap-extruder /dev/ttyUSB0
[19:04:52] <SWPadnos> ok
[19:05:29] <SWPadnos> well, I'm not sure how smart halcmd is at determining what the resulting component name is, but it may be waiting for "/home/brendanjerwin/emc2/configs/my-mill/reprap-extruder" to become ready
[19:05:34] <SWPadnos> or the first 41 characters of it
[19:05:53] <SWPadnos> try loadusr -Wn reprap-extruder /home/brendanjerwin/emc2/configs/my-mill/reprap-extruder /dev/ttyUSB0
[19:06:15] <SWPadnos> the n option to loadusr lets you tell halcmd what component to wait for
[19:07:06] <brendanjerwin> I'll try that
[19:07:17] <brendanjerwin> btw, just updated the gist with the output I see. as a comment
[19:08:33] <brendanjerwin> That looks better
[19:08:44] <brendanjerwin> thanks, I think it'll work
[19:09:07] <SWPadnos> cool
[19:09:23] <SWPadnos> you could also put the program somewhere on the path
[19:09:40] <brendanjerwin> yeah, I think that must be what I did 2 years ago...
[19:09:56] <brendanjerwin> which is why I did the chmod instead of .py
[19:10:06] <SWPadnos> there's probably somewhere that emc looks for programs too, but I don't know where it is if so
[19:10:06] <brendanjerwin> n would have been clearer...
[19:10:28] <SWPadnos> halcmd help loadusr should tell you all about it, I think (or man halcmd)
[19:12:32] <brendanjerwin> ok, I'll read up on it
[19:15:28] <jthornton> Whoot! My ardunio temperature control works...
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[19:23:05] <brendanjerwin> jthornton: shouldn't I be saying that?
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[19:28:27] <jthornton> could be, but I don't know...
[19:31:57] <jthornton> I just woke up from my nap and thought I would test my smoker controller
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[19:54:43] <pcw_home> jthornton: does the thermocouple muxing work?
[19:58:03] <jthornton> yes
[19:58:21] <pcw_home> Neat!
[19:58:24] <jthornton> I only have one thermocouple connected at the moment to the ADG609
[19:59:10] <jthornton> but it works... I had to pull the select lines low for it to work with just the enable high which gives you the first pair out
[19:59:39] <jthornton> when I left A0 and A1 floating I got nothing :/
[20:00:50] <pcw_home> Thermocouples are a pain to interface but ideal once interfacing is solved (cheap and rugged)
[20:01:18] <jthornton> yes, and can take some high temperatures too boot
[20:02:40] <pcw_home> Yep, you can even measure the temperature rise of a thermocouple as you hit it with a hammer (not suggested with other sensors)
[20:03:44] <jthornton> I don't think I want to try that with mine
[20:04:33] <pcw_home> I mean bare wire TCs
[20:05:08] <jthornton> :)
[20:05:37] <pcw_home> kind of hard on one in a housing...
[20:06:12] <jthornton> LOL
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[20:16:43] <atom1> PT100 sensors are cheap and fairly linear
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[20:20:01] <pcw_home> still hard to beat a length of TC wire for price
[20:20:08] <jthornton> http://www.virtualvillage.com/thermocouple-temperature-probe-pt100-003820-034.html?utm_source=googlebase&utm_medium=shcomp
[20:20:18] <jthornton> like that ^^
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[20:21:36] <pcw_home> Thats really good for a probe with housing
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[20:24:10] <jthornton> but they call it a thermocouple
[20:24:17] <TekniQue> wait what
[20:24:27] <TekniQue> that is a pt100 sensor
[20:24:29] <TekniQue> not a thermocouple
[20:25:49] * jthornton wishes he understood what the MAX6675 SPI returned
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[20:26:47] <atom1> you don't need any fancy op amps with the pt100
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[20:27:01] <jthornton> http://cgi.ebay.com/Thermocouple-Temperature-Control-Sensor-Probe-PT100-1m-/260730909290?pt=LH_DefaultDomain_0&hash=item3cb4c5f26a
[20:27:15] <jthornton> how do you drive one?
[20:27:25] <atom1> i read mine with an avr adc input
[20:27:30] <TekniQue> atom1: neither do you with the thermocouple
[20:28:19] <jthornton> is it fun like a thermistor?
[20:28:28] <TekniQue> PT100 is a thermistor
[20:28:33] <atom1> http://tom-itx.dyndns.org:81/~webpage/toaster_oven/PT100_a.jpg
[20:28:34] <TekniQue> positive temperature coefficient
[20:28:53] <atom1> that's what i got on my toaster oven
[20:28:54] <TekniQue> basically a piece of platinum wire
[20:28:59] <jthornton> a bit small for me
[20:29:02] <atom1> yeah
[20:29:12] <atom1> they have enclosed ones like the previous links
[20:29:30] <jthornton> do you need the steinhart-hart calculations?
[20:29:42] <jthornton> and a dividing resistor?
[20:29:50] <atom1> i didn't
[20:29:58] <atom1> but i didn't need dead on accuracy either
[20:30:08] <atom1> use a 1v reference
[20:30:25] <atom1> 1.1v internal iirc
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[20:31:17] <jthornton> do you have a circuit diagram?
[20:31:35] <atom1> http://tom-itx.dyndns.org:81/~webpage/toaster_oven/toaster_oven_index.php
[20:31:55] <atom1> http://tom-itx.dyndns.org:81/~webpage/toaster_oven/control_sch.png
[20:32:06] * jthornton doesn't know what "dead on accuracy" is unless it is the torque wrench used to tighten the faucet knob in the hotel
[20:32:48] <atom1> err you mean pipe wrench with cheater bar?
[20:33:35] <atom1> the data sheet for mine is on that link somewhere
[20:33:57] <atom1> http://tom-itx.dyndns.org:81/~webpage/toaster_oven/DM-508_Temp_Sensor.pdf
[20:33:57] <jthornton> from "My Cousin Vinnie"
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[20:34:16] <mike__> Tom: what is that for? an SMT oven?
[20:34:21] <atom1> yes
[20:34:25] <mike__> heh, cool
[20:34:40] <atom1> first link shows it
[20:36:16] <jthornton> what did you use to convert the analog voltage to temperature?
[20:36:35] <atom1> atmega168
[20:37:02] <pcw_home> http://www.virtualvillage.com/1m-3-3ft-k-type-thermocouple-temperature-sensor-probe-003820-033.html is a Thermocouple
[20:37:05] <pcw_home> the PT100 is a RTD I guess
[20:37:06] <jthornton> I meant the code
[20:37:08] <atom1> just a sec, i'll post it
[20:37:12] <jthornton> ok
[20:37:53] <atom1> it was a shared project with an aussie. he did most of the coding
[20:40:23] <atom1> ahh, it's already posted
[20:40:44] <atom1> http://tom-itx.dyndns.org:81/~webpage/avr/Toasteroven/
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[20:44:17] <atom1> JT-Shop what are you measuring?
[20:44:34] <jthornton> smoker temp and food temp
[20:44:48] <atom1> we didn't need real close accuracy
[20:44:54] <atom1> it should do ok for that
[20:45:06] <jthornton> how close is it?
[20:45:46] <atom1> i haven't put another sensor on it to test it but it melts solder when it's supposed to
[20:46:33] <atom1> i'm not sure how much he tested it
[20:46:41] <atom1> he uses his on a daily basis
[20:51:22] <atom1> the code will fit on any of the 8 48 88 168 chips
[20:51:35] <atom1> whatever is cheapest. i just had the 168
[20:51:51] <atom1> i think he used a 48
[20:52:06] <jthornton> I looked at it but didn't understand how he got the temperature :/
[20:52:17] <atom1> it's a define at the top
[20:52:44] <atom1> #define ADC_TEMP(x) ((x)+447)
[20:52:44] <atom1> #define REAL_TEMP(x) ((x)-447)
[20:52:54] <atom1> i'm not sure where he arrived at the number
[20:53:50] <jthornton> so the PT100 must be pretty linear
[20:53:55] <atom1> it is
[20:54:09] <atom1> that's the simplicity of them
[20:54:17] <atom1> and for our purpose it is plenty accurate
[20:55:05] <jthornton> cool, well I need to get out to the shop and try and get some wiring done
[20:55:24] <atom1> i'd see if you can get a data sheet for that cheap ebay sensor
[20:56:16] <pcw_home> jthornton dont you have A MAXIM TC chip? if so the PT100 wont work
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[20:56:18] <fragalot> anyone here happen to know wether EMC2 can compensate for a machine bed that isn't completely level?
[20:56:37] <pcw_home> rats just missed him...
[20:56:48] <fragalot> timing++
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[20:56:49] <atom1> why won't it work without a max chip?
[20:57:13] <fragalot> JT-Shop: you're quite clever - do you happen to know wether EMC2 can compensate for a machine bed that isn't level?
[21:01:02] <pcw_home> The max6675? chip is for thermocouples not RTDs
[21:01:12] <JT-Shop> pcw_home: right, but I have been also playing with another thermistor trying to get that to work on a different shield
[21:01:13] <atom1> ok
[21:01:45] <pcw_home> OK
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[21:01:59] <atom1> the platinum resistance sensors are fairly linear
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[21:02:50] <JT-Shop> I never could get the calculations right and this was not a platinum one I'm sure so I put it aside for a while and worked with the MAX6675 and some type k thermocouples
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[21:05:04] <JT-Shop> dang women are needy... bbiab gotta go exploring with the dog so she is happy
[21:05:20] <JT-Shop> fragalot: I'm thinking on that atm
[21:05:25] <atom1> hehe
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[21:19:50] <atom1> anonimasu you around?
[21:21:51] <JT-Shop> fragalot: I can think of ways to do it in my cam program but not in EMC
[21:24:52] <fragalot> JT-Shop: :'(
[21:25:06] * fragalot reckons this should go up as a feature request
[21:25:06] <fragalot> :p
[21:26:41] <fragalot> well i'm off, gnite
[21:36:29] <danimal_garage> hi
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[21:38:31] <JT-Shop> hi Dan, how goes it?
[21:40:11] <danimal_garage> pretty good, you?
[21:40:46] <danimal_garage> i got my encoders!
[21:41:12] <danimal_garage> still gotta make the new mounts for the servos before i put them on
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[21:42:41] <JT-Shop> cool, just piddling with the wiring in the shop
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[21:42:54] <danimal_garage> almost done?
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[21:49:11] <JT-Shop> almost started lol
[21:49:44] <JT-Shop> I have the panel installed in the shop and 4 outlets... working on the lighting circuits atm
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[21:58:59] <danimal_garage> cool, yea, lighting is important so you can see what you're doing with the rest of the wiring!
[21:59:51] <JT-Shop> unfortunately the lights go up last after everything is finished
[22:00:43] <JT-Shop> when they are all on I'll have about 95 candle power in the shop
[22:08:00] <danimal_garage> nice!
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[22:08:41] <danimal_garage> i might throw a few more in here, although it isnt bad
[22:09:49] <JT-Shop_> I'm using 6500k cool white T8's in Wally World fixtures
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[22:11:44] <danimal_garage> yea i may pick some of those up myself
[22:12:09] <danimal_garage> i just got one of those harbor freight imitation Kennedy 11 drawer roll away tool boxes
[22:12:20] <danimal_garage> it's actually halfway decent
[22:16:04] <JT-Shop> cool
[22:16:31] <JT-Shop> the bulbs were 2x higher at wally world than homo depot if you get the 10 pack
[22:17:46] <JT-Shop> I found some roll around wood top SS cabinets at Sams that I plunk a wannabe Kennedy tool box on for the mill and lathe
[22:18:07] <danimal_garage> nice
[22:18:21] <JT-Shop> even has a towel rack when you get a coolant bath
[22:18:25] <JT-Shop> you can dry off
[22:18:43] <danimal_garage> i have a Kennedy roll away as well, i just wanted one for in front of the hardinge
[22:18:49] * JT-Shop wonders why coolant can't taste like beer instead of crap
[22:18:58] <danimal_garage> ha
[22:20:43] <JT-Shop> I think if I try real hard I can get one more 4-square box put up tonight
[22:21:21] <danimal_garage> are you using romex or conduit?
[22:30:07] <JT-Shop> both, conduit from the box to the attic and romex for wire... that way if I change my mind what I want in that box I can pull it out and replace it very easy
[22:31:54] <JT-Shop> for horizontal runs conduit and thhn from box to box
[22:33:23] <danimal_garage> ah cool
[22:33:46] <danimal_garage> i have conduit but only because the walls arent covered
[22:36:05] <JT-Shop> I'm insulating the hell out of the shop and covering the walls with OSB and sheetrock on the ceiling
[22:38:01] <danimal_garage> that's my goal sometime soon as well
[22:42:28] <danimal_garage> why osb?
[22:42:34] <danimal_garage> for oil resistance?
[22:49:42] <JT-Shop> just so I can screw things to it and it will have more holding power than sheetrock
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[22:50:21] <danimal_garage> ah
[22:50:24] <danimal_garage> good idea
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[23:02:41] <JT-Shop> it's m/l the same price per sq ft so it don't matter from that standpoint'
[23:03:29] * JT-Shop listens to Wall of Voodoo
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[23:06:26] <danimal_garage> i wonder how the noise insulation of osb is?
[23:06:42] <danimal_garage> i was planning on getting soundproof drywall
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[23:07:57] <danimal_garage> i'm listening to The Band
[23:08:04] <JT-Shop_> nice
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[23:09:21] <danimal_garage> playing musical usernames?
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[23:11:20] <JT-Shop> hmm, I don't have any of The Band's music
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[23:13:45] <Jymmm> JT-Shop: how thick are the walls?
[23:13:49] <JT-Shop> winblows media player sucks
[23:13:54] <JT-Shop> 6" Jymmm
[23:14:09] <Jymmm> JT-Shop: blown or rolls?
[23:14:16] <JT-Shop> bats
[23:15:21] <danimal_garage> baseball or softball?
[23:15:31] <JT-Shop> hardball
[23:15:37] <atom1> winged
[23:15:39] <Jymmm> they say to foam-in-a-can seal holes and gaps on the walls and outlets
[23:16:01] <atom1> foam in a can doesn't go very far
[23:16:06] <JT-Shop> they say that cause their walls leak
[23:16:11] <atom1> :D
[23:16:25] <Jymmm> leak?
[23:16:31] <JT-Shop> yea air
[23:16:51] <danimal_garage> i leak air too
[23:16:51] <JT-Shop> if you don't seal the holes the walls leak
[23:16:52] <Jymmm> Yeah, even foam seal outslets and wall switches too
[23:16:58] <danimal_garage> should i use foam in a can?
[23:17:13] <JT-Shop> na, seal the holes in the plates and the OSB
[23:17:15] <Jymmm> danimal_garage: 50lb bag of quickset
[23:19:21] <atom1> anyone have any experience with PTFE coated linear bearings?
[23:19:34] <JT-Shop> yea
[23:19:41] <atom1> good bad ugly?
[23:20:00] <atom1> better than linear ball?
[23:20:09] <JT-Shop> smooth, not quite as tight as linear balls but cost effective if that is all you need
[23:20:35] <JT-Shop> spaced out correctly you can get some rather tight slides
[23:21:16] <JT-Shop> I used some last week to build a pick and place or rather a pick and chuck
[23:21:30] <atom1> what sort of cost?
[23:21:43] <atom1> i'm looking at some 5/8" mounted rail
[23:21:59] <atom1> from pbclinear
[23:22:09] <JT-Shop> http://www.mcmaster.com/#linear-motion-guide-rails/=bmcw9x
[23:23:18] <atom1> i keep forgetting about them
[23:23:37] <atom1> and i've got an old catalog sitting on the shelf
[23:24:05] <atom1> err this one is Carr Lane
[23:25:11] <JT-Shop> I used the 9728K3 one
[23:25:43] <JT-Shop> doesn't look like the pic on that page has V ways and rulon liners
[23:27:15] <JT-Shop> ahh some Buffalo Springfield...
[23:29:25] <danimal_garage> U2
[23:30:53] <JT-Shop> nice
[23:31:14] <danimal_garage> boston
[23:31:29] <JT-Shop> Pink Floyd
[23:34:39] <danimal_garage> still boston lol
[23:34:42] <danimal_garage> long ass song
[23:36:08] * atom1 queues up some styx after boston
[23:36:58] <JT-Shop> Alison Krauss
[23:37:03] <danimal_garage> how do you do that talking in third person thing? i forgot
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[23:37:26] <atom1>  /me ?
[23:37:41] <JT-Shop> I got a F in math so I don't know
[23:38:02] * danimal_garage queues up a new endmill after breaking one
[23:38:06] <danimal_garage> thanks
[23:39:29] * JT-Shop had to use a CNC lathe and a MIG welder to change the handlebars on the Honda XL200R today :/
[23:40:34] <danimal_garage> ouch, how come?
[23:42:17] <JT-Shop> it has some things on the end of the bars that screw into the bars so I had to make one and weld it in place
[23:42:38] <danimal_garage> ah
[23:43:42] <JT-Shop> they look like medieval helmets
[23:44:31] <danimal_garage> lol
[23:45:01] <danimal_garage> it would be cool if you could do math in the tool table
[23:45:32] <danimal_garage> i know you can do it in the touch off box, but it would be cool if you can do it in the tool table as well
[23:45:42] <danimal_garage> or can you?
[23:45:58] <JT-Shop> I don't think you can
[23:46:18] <JT-Shop> I don't even edit the tool table any more
[23:47:46] <danimal_garage> i have to since you can't use the touch off box if you're touching off an offset other than the tool number
[23:48:19] <cradek> you could use mdi g10
[23:48:41] <cradek> (I don't edit the tool table either - no way to do it without a keyboard - I just use G10 or touch off)
[23:48:55] <danimal_garage> ah
[23:49:06] <danimal_garage> good idea, thanks
[23:49:31] <JT-Shop> how do you use MDI with touchy?
[23:49:31] <danimal_garage> wait doesnt that effect the work offset?
[23:49:56] <cradek> it's easier for you to try it than for me to explain
[23:50:15] <cradek> I'd point you to the docs ... if I had previously written them
[23:50:17] * JT-Shop wheels around to try it
[23:50:40] <cradek> touchy needs some more docs, including how to use the Macro button
[23:50:43] <cradek> I just haven't done it yet.
[23:50:56] <cradek> brb
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[23:53:55] * JT-Shop turns out the lights and does a "stage left babblouie"
[23:54:43] <JT-Shop> talk to you later Dan
[23:54:57] <danimal_garage> bye John
[23:55:22] * JT-Shop leaves Dan with some Moody Blues to listen to...
[23:55:54] <danimal_garage> thanks!