#emc | Logs for 2009-05-20

[00:20:36] <Jymmm> http://www.theinquirer.net/inquirer/news/1137385/nvidia-bad-bumps-worse
[01:22:09] <tomp> tomp is now known as tomp4
[01:24:02] <tomp4> tomp4 is now known as tomp
[01:49:59] <skunkworks> shingling done!
[01:50:07] <skunkworks> well - assuming it doesn't leak
[02:22:29] <mozmck> has anyone run a pick and place machine with em2?
[02:22:39] <mozmck> emc2
[02:23:57] <tom3p> ive not heard of it, but... pick and place machines dont usually use gcode, and few use emc2 w/o gcode
[02:25:18] <mozmck> hmm. I wonder if orocos would be a better fit...
[02:26:25] <mozmck> I don't know much yet, but I have a couple of older pick and place that I just got, and have thought of retrofitting one at some point.
[02:27:18] <tom3p> pick&place with linux http://www.msl.ri.cmu.edu/publications/pdfs/Diploma_thesis_C_Niemeyer.pdf
[02:28:11] <mozmck> irc is great. Thanks!
[02:28:29] <tom3p> emc 2 can likely handle th ehardware and make it move, i just meant pick & place didnt usually use gcode
[02:28:54] <tom3p> so you can have a lot of fun with emc2 and your hardware
[02:29:28] <mozmck> yeah. I don't know what these machines take. They have 3.5" floppy drives.
[02:30:17] <mozmck> I was thinking maybe a combination of gcode with some custom components and code would work.
[02:31:18] <tom3p> that thesis is vision driven
[02:32:15] <toastydeath> download some manuals for commerical pick and place and see how they do it
[02:32:19] <toastydeath> programming manuals
[02:32:46] <mozmck> I see that. These are also factory style pick and place. Mine are for SMT electronic components.
[02:32:59] <tom3p> if they got drives, they're likely 'smart'. maybe you can go downstream far enough to find a spot where emc can take control
[02:33:21] <mozmck> I have the manuals for these machines. As far as information on the web, I can't find anything at all.
[02:33:52] <mozmck> That was my thought.
[02:34:08] <mozmck> they use a camera to align components...
[02:34:27] <mozmck> I'll be back in a little bit...
[02:51:34] <steves_logging> steves_logging is now known as steve_stallings
[03:50:20] <steve_stallings> steve_stallings is now known as steves_logging
[05:59:43] <toastydeath> anyone happen to be a dentist
[07:16:07] <Jymmm> toastydeath: ?
[07:55:30] <archivist> alk no more info than lspci -vvv
[07:57:36] <pjm__> morning
[07:57:40] <pjm__> archivist did u suss it?
[07:58:08] <archivist> no went home and just got into work
[08:03:48] <archivist_emc> cat /proc/ioports http://pastebin.ca/1428280 shows its there
[08:12:25] <pjm__> did u try moving the output to pin-01 just to see if it worked?
[08:12:51] <pjm__> it seems odd that parport_pc sees the card and detects the correct base addresses
[08:13:55] <archivist> its annoying that nothing indicates which port is which
[08:14:40] <pjm__> yeah i found the same, i used the hal scope and just waggled a pin whilst checking which parport it was
[08:15:52] <archivist> been waggling pins for hours
[08:18:16] <pjm__> it sounds like the card simply isnt compatible
[08:18:25] <pjm__> as u have gone thru all the usual steps to make it work
[08:18:57] <pjm__> i had a netmos based card 2XSer 1XPar that just would not work
[08:19:32] <archivist> "all the usual steps" thats kinda undefined
[08:20:48] <archivist> as the first of the two new cards stooped a boot and this card has no output, I do lean towards crap cards
[08:21:18] <pjm__> stopped it booting, wow. might be worth trying it in a different pci slot
[08:21:25] <archivist> but getting parport cards is getting less easy
[08:23:30] <pjm__> out of interest, is it possible for u to test the card under windows and print via it etc?
[08:23:37] <archivist> seems these cards have been around for a while http://his.luky.org/ML/linux-kernel.2005/msg23170.html
[08:24:52] <archivist> it takes an 1/2 an hour to get in the pc case to get at the card and another 1/2 to reassemble
[08:25:10] <archivist> not a normal case
[08:32:12] <archivist> the motherboard integral behind the LCD monitor in an industrial case
[08:44:49] <Valen> whats hapening freaky people
[08:45:14] <Vq^> ?
[08:49:09] <Valen> to translate
[08:49:21] <Valen> hello and how are you today my good fellow
[08:53:32] <jmkasunich> tired
[08:53:40] <Valen> thats no good
[08:53:47] <jmkasunich> 4:52 am here
[08:53:48] <Valen> ordered my stuff from mesa today
[08:54:02] <archivist> jmkasunich, awake this hour!
[08:54:08] <Valen> heh I was awake at that time last time i was dealing with magmotor
[08:54:31] <Valen> oh i got a ceramic knife for $6 today, tis somewhat nifty
[08:54:36] <jmkasunich> archivist: not by choice - I have a deadline
[08:54:44] <Valen> So i got a bunch more to give out as presents ;->
[08:54:49] <archivist> hehe get it done!
[08:54:50] <Valen> whatcha workin on?
[08:55:03] <jmkasunich> building a CNC mill
[08:55:21] <archivist> taking to the fest?
[08:55:31] <jmkasunich> I'm planning to take the table assembly to the EMC-Fest in two days, so I can do some critical machining on a large mill
[08:56:11] <jmkasunich> I had to get the frame assembled tonight, so I can do one more machining operation tomorrow, then ship it, before I catch a plane the next day
[08:56:14] <Valen> funky
[08:56:37] <archivist> and catch up on sleep on the plane
[08:56:47] <jmkasunich> yeah
[08:57:08] <Valen> gonna make it?
[08:57:20] <jmkasunich> I think so
[08:57:39] <Valen> thats good then
[08:57:45] <archivist> else carry as baggage :)
[08:58:06] <jmkasunich> its a bit heavy for that
[08:58:13] <Valen> see theres an application for my aluminium mill archivist ;->
[08:58:28] <jmkasunich> not completely out of the question, probably 40-50 lbs
[08:58:52] <Valen> machinists can be productive on their aircraft l-> just like office weenies
[09:01:27] <Valen> how bout you archivist up to much?
[09:01:44] <jmkasunich> frame: http://jmkasunich.com/pics/imgp2931.jpg
[09:02:01] <jmkasunich> table is a piece of 3/4" thick 2024 that goes on top
[09:02:07] <archivist> trying to get a 5th axis working, hardware done but parport is being an utter pain
[09:02:12] <Valen> lookin good
[09:02:33] <jmkasunich> the table is 11.75" wide, the frame is a bit over 8" wide
[09:02:41] <jmkasunich> the linear rails go on the bottom of the table, next to the frame
[09:02:42] <Valen> for a rotary table?
[09:03:12] <jmkasunich> no - the round hole is where the X motor goes
[09:03:31] <jmkasunich> ballscrew underneath, "ring frame" wraps around, Y axis is above the table
[09:03:42] <Valen> archivist thaught about using a mesa board? or not much point for steppers?
[09:04:10] <jmkasunich> and now, sleep
[09:04:12] <archivist> Valen, cost of getting one here compared to parport
[09:04:32] <Valen> $229 isnt *that* much ;->
[09:04:55] <archivist> its a lot on my wages with redundancy on the way
[09:05:06] <Valen> ahh sucky :-<
[09:11:04] <Valen> so whats the parrport doing to you to be no fun?
[09:11:56] <archivist> not outputting
[09:12:17] <Valen> not putting out anything or not enough?
[09:18:47] <archivist> no output
[09:19:06] <Valen> :-< thats no good at all
[09:22:48] <Valen> not using an invalid pin (one that you cant drive) or anything silly like that?
[09:23:28] <archivist> no
[09:24:44] <Valen> :-< that would have been nice in a way
[09:52:41] <archivist> bah cannot download chip data without signing life away http://www.moschip.com/registration.php bunch of bar stewards
[09:52:55] <Valen> thats a new insult to me
[09:53:01] <Valen> tried bugmenot?
[09:56:07] <archivist> wee that "work around" works
[09:56:20] <Valen> bugmenot?
[09:58:21] <archivist> yup
[09:58:41] <Valen> heh its a cool site, lots of "odd" places are listed in it too
[09:59:39] <Valen> like electronics companies ;->
[10:01:17] <archivist> I have been known to put a pile of false info to get around them :)
[10:01:33] <Valen> I dont even feel bad about doing it anymore
[10:02:06] <Valen> I run my own mail server so i setup a temporary email account for the "authentication" email
[10:02:43] <Valen> a place related to bugmenot (or it might even be them) offer 15 minute long email accounts for the purpose of getting past those
[10:03:07] <archivist> hehe good workaround
[10:27:16] <BigJohnT> skunkworks: I get a 404 not found on this link http://timeguy.com/cradek-files/emc/DSCN6290.JPG in your message about the Kearney & Trecker
[11:03:28] <skunkworks> BigJohnT: thanks - I will take a look
[11:04:20] <BigJohnT> np
[11:04:21] <piasdom> g'mornin all
[11:04:33] <BigJohnT> morning
[12:26:08] <skunkworks161> I will have to ask chris if those pictures are still on his website somewhere
[12:50:43] <steves_logging> steves_logging is now known as steve_stallings
[12:51:55] <steve_stallings> forgive me for I am about to sin..... are there any special considerations for installing Wine on an RTAI kernal like EMC?
[12:53:03] <archivist> say 100 hail Maries
[12:53:33] <steve_stallings> can I use a do while loop?
[12:53:57] <archivist> lazy b......
[12:54:25] <steve_stallings> always... 8-)
[13:07:39] <alex_joni> steve_stallings: no special considerations
[13:18:14] <jepler> the same consideration as normal: it's pretty unlikely to work for any app you actually need to run
[13:18:19] <jepler> * jepler hates wine
[13:19:04] <alex_joni> * alex_joni has mixed feelings
[13:19:24] <alex_joni> I once had an win98 install on a hdd, and I pointed wine to that, after that a lot of apps just worked
[13:19:36] <alex_joni> obviously not _very_ advanced stuff
[13:20:20] <archivist> freemill is under wine here
[13:21:59] <Vq^> i'd rather use wine than windows
[13:22:21] <steve_stallings> my schematic capture stuff is known to work under wine, and there are claims that PCAnywhere can be made to work
[13:22:42] <steve_stallings> PCB layout does not, at least in previous attempts
[13:23:11] <steve_stallings> that may be solvable since the issues were with security key stuff
[13:24:49] <archivist> wean yourself off the dark side
[13:25:37] <Optic> oo
[13:27:30] <steve_stallings> cannot, the PCB layout tools available under Linux still come up short and I have two decades of experience with my current PADS tools
[13:45:53] <Valen> eagle is available under linux
[13:46:07] <Valen> its not too bad
[13:47:30] <Valen> kicad is ok, it has a ways to go but its got some funky features
[13:54:19] <archivist> kicad is slow to build up a user base, I started the #kicad channel to make a place to meet
[13:54:45] <Valen> the parts library is the biggiest hole with it
[13:55:27] <archivist> make new parts :) write a converter from other formats
[13:55:43] <Valen> might get in trouble for importing everything from eagle ;->
[14:00:57] <steve_stallings> Eagle is usable but still much less capable than PADS, KiCAD is far short, usable only for simple circuits.
[14:01:32] <steve_stallings> at least by my definition of usable, ie. get the job done now, not fight the tools
[14:01:45] <archivist> Im a 20+years user of PCAD so I realise the shortcomings
[14:03:36] <steve_stallings> it seems all the good low cost tools have gone through multiple buyouts with detrimental results, I still use a version from many years ago in preference to the current stuff with its new bugs
[14:04:24] <archivist> hehe /me still on the dos version
[14:05:21] <steve_stallings> well I don't go that far, just back to the first true Windows version that was stable
[14:06:08] <archivist> dos PCAD was very usable and the windows replacement less so, I stuck
[14:07:42] <steve_stallings> I am a sucker for hi-res graphics and fast processors. My old ISA bus proprietary hi-res graphics cards had to be retired.
[14:09:16] <steve_stallings> Number 9 video cards, about 2k by 1.5k resolution with hardware pan and zoom, cost over three grand when new.
[14:09:43] <Valen> heh
[14:10:11] <steve_stallings> .. and the monitors were not cheap back then either...
[14:10:21] <Valen> I have an old sun one somewhere
[14:10:25] <Valen> weighs about 400kg
[14:10:55] <steve_stallings> the ones we used were typically BNC input, multisync and worked on SUN, Apollo, etc.
[14:11:11] <archivist> I remember the Prices quoted for Elsa Gloria video cards.. boss wouldnt pay
[14:12:56] <steve_stallings> we were doing some boards with up to 200 thru hole chips, without hi-res you spent your whole life panning
[14:17:56] <Valen> I had a 37" 1080P TV as my monitor at one stage
[14:18:10] <Valen> was great for headshots in FPS games ;->
[14:18:55] <Valen> I'm looking at getting some new monitors now, a pair of 23" 1920x1650 or something like that
[14:19:20] <alex_joni> those should be fairly cheap these days
[14:19:21] <archivist> £1000 for 1meg of expanded ram so I could do bigger boards on my AST
[14:19:45] <alex_joni> heh
[14:19:56] <alex_joni> * alex_joni still has a 387 coprocessor somewhere
[14:19:58] <archivist> cant remember if it was a 286 or 386
[14:20:15] <Valen> yeah about $250-300 australian
[14:20:15] <alex_joni> hmm.. seems it's 287
[14:20:30] <alex_joni> 80287/10 MHz
[14:20:39] <Valen> I have a 386Sx that i want to get running linux and PPP over serial for IRC
[14:20:55] <skunkworks161> I am very happy with eagle. The learning curve was a bit bumpy but I am very supprised by what it can do.
[14:21:25] <alex_joni> * alex_joni runs home
[14:21:27] <alex_joni> later all
[14:21:30] <skunkworks161> Have fun
[14:22:18] <alex_joni> http://failblog.org/2009/05/20/city-sign-fail/
[14:23:07] <skunkworks161> Actually - what really got me into what it can do is by looking at others works. (jmk layed out a board for me which really opened up what could be done) (of cource I think it was the first time he used it and took him about 3 minutes to figure it out :))
[14:23:37] <Valen> dont bother too much with the auto router
[14:23:50] <Valen> I use it to get things close to where they should go then run it all by hand
[14:24:24] <skunkworks161> Nope. More of a parlar trick ;)
[14:24:51] <steve_stallings> we do mostly 2 layer SMT stuff, so autorouters are not much help, even the Spectra stuff that costs $$$$
[14:26:05] <archivist> human wins, 99% of the time
[14:26:11] <steve_stallings> it is really all about placement and pin swapping, programmable logic helps a lot
[14:26:14] <skunkworks161> I think it is pretty http://www.electronicsam.com/images/KandT/servostart/schem/latestcurrentlimit/latestboard.png
[14:26:19] <skunkworks161> in a scary sort of way
[14:26:48] <skunkworks161> only 1 via ;)
[14:27:01] <skunkworks161> mainly becaus I gave up ;)
[14:27:56] <jepler> what I'd like to see in eagle is a "pinswap damnit" command
[14:28:03] <jepler> I'm all the time forced to go into the library editor just to make a pad swappable
[14:31:38] <skunkworks161> heh
[14:31:51] <skunkworks161> jepler: when are you guys driving down?
[14:33:16] <cradek> I'm pretty sure I will get there tonight
[14:33:57] <skunkworks161> bus willing? ;)
[14:34:03] <cradek> I'm taking bets on the bus's mileage - winner gets to fill it up!
[14:34:09] <skunkworks161> heh
[14:34:10] <cradek> any guesses?
[14:34:16] <BJT-Work> 500MPG
[14:34:20] <skunkworks161> 7.2
[14:34:42] <cradek> I bet skunkworks161 is closest so far.
[14:34:47] <BJT-Work> skunkworks161: won
[14:34:49] <steve_stallings> any hints as to what the bus is?
[14:34:57] <skunkworks161> heh
[14:35:18] <cradek> steve_stallings: my portable-house project
[14:35:58] <steve_stallings> lets see, Kansas is kind of level isn't it, maybe 9 mpg
[14:36:32] <skunkworks161> cradek: is this anywhere on your website - If I recall it is the servo mount for your little lathe http://timeguy.com/cradek-files/emc/DSCN6290.JPG
[14:36:47] <cradek> brb
[14:42:04] <cradek> skunkworks161: sorry, I can't find that image anywhere.
[14:42:09] <skunkworks161> That is ok
[14:42:30] <cradek> I lied
[14:42:41] <cradek> well, it wasn't a lie at the time.
[14:42:52] <cradek> I put it back at that URL so your link is unbroken
[14:43:05] <skunkworks161> Cool - Thank you\
[14:43:24] <cradek> heh, that's one of the few things I cut out of aluminum on max
[14:43:30] <cradek> so glad I don't have to do that anymore
[14:45:10] <geo01005> Suppose I have three 48 volt switching power supplies, any problems connecting them in series to get 144 volts to power an H-Bridge?
[14:46:44] <archivist> driving steppers or servos or what
[14:47:43] <geo01005> A DC motor.
[14:47:49] <geo01005> brushed.
[14:49:26] <geo01005> I'm just wondering if weird stuff happens when you connect switching power supplies in series.
[14:49:59] <geo01005> I understand that to connect a couple of switching power supplies in parallel, they need to be designed to share the load.
[14:50:21] <geo01005> I'm guessing this is not the case in series.
[14:58:57] <steve_stallings> identical switchers in series should be happy with regulation, but there are other issues
[14:59:44] <skunkworks161> like where ground it.
[14:59:47] <steve_stallings> back EMF that causes the voltage to rise will make them unhappy, and a large cap across the output is good for motor driver but initial charge up may trip current limit on supplies
[14:59:50] <skunkworks161> *is
[15:00:40] <steve_stallings> input/output isolation of supplies will need to be considered, if your stacked supplies approach this isolation limit bad things could happen
[15:05:08] <Valen> there can be issues with the switchers at low loads having weird output ringing causing interaction between the two
[15:10:31] <geo01005> hmm...So an unregulated power supply may be better than the switching supplies in series?
[15:11:14] <cradek> I think it's a pretty sure thing, not a "may be"
[15:11:23] <geo01005> I mean transformer, rectifier and a filter cap.
[15:12:00] <cradek> I think that's the standard way to do it
[15:13:37] <geo01005> are unregulated power supplies usually preferred over switching supplies to servo motors?
[15:13:52] <geo01005> for servo motors...
[15:14:12] <cradek> both my commercial machines use transfomer/bridge/caps for the servo power supply
[15:14:31] <cradek> 3 phase transformer is typical (much lower ripple)
[15:19:31] <jmkasunich> groan
[15:19:52] <archivist> still sleepy
[15:19:57] <jmkasunich> yes
[15:20:20] <cradek> uh-oh, how's progress?
[15:20:21] <jmkasunich> and still much to do
[15:20:28] <jmkasunich> http://jmkasunich.com/pics/imgp2931.jpg
[15:20:40] <archivist> pic looked good this morning
[15:20:53] <cradek> wow!
[15:22:04] <BJT-Work> nice
[15:22:09] <archivist> the camera autofocus liked the soldering iron
[15:22:13] <BJT-Work> 6061?
[15:22:29] <jmkasunich> yeah, I'm a bit underimpressed with my camera's focus
[15:22:41] <jmkasunich> BJT-Work: yes, except for the end plates - they're 7075
[15:22:53] <skunkworks161> jmkasunich: wow - very nice
[15:22:55] <BJT-Work> cool, did you make the bed?
[15:22:56] <jmkasunich> and the table top (not in that pic) is 2024
[15:23:14] <jmkasunich> bed?
[15:23:27] <BJT-Work> the top part
[15:23:57] <archivist> casting or builtup?
[15:24:00] <BJT-Work> is it a weldment or all bolted together
[15:24:04] <jmkasunich> that pic is the "frame" the table itself is a piece of 3/4" plate that will be glued and screwed on top, after I flycut the top flat and parallel at the workshop
[15:24:08] <geo01005> forgive me for asking, but what is it? i'm sure its not an ice cube tray ;)
[15:24:16] <jmkasunich> screwed and glued with structural adhesive
[15:24:34] <jmkasunich> geo01005: table and X axis for a small gantry mill
[15:24:46] <geo01005> Cool :)
[15:24:50] <jmkasunich> what you see is 24" long x a bit over 8" wide
[15:24:54] <BJT-Work> sweet
[15:25:00] <jmkasunich> the table plate is 26" long x 11-3/4 wide
[15:25:23] <jmkasunich> the linear rails will go on the bottom of the table (facing down), just outside the little "lips" on either side of the frame
[15:26:08] <jmkasunich> the gantry will hang from the rails, and be a loop that goes all the way under and arround the top
[15:26:32] <jmkasunich> X ballscrew goes underneath, where you see various bored holes and recesses
[15:32:55] <skunkworks161> That is going to be one nice machine
[15:33:08] <jmkasunich> I sure hope so
[15:33:35] <jmkasunich> as usual, I wind up overbuilding things
[15:34:20] <jmkasunich> won't really know until the first time I try to cut metal with it
[15:36:14] <steve_stallings> sure looks sturdy for a PCB mill 8-)
[15:36:33] <jmkasunich> yeah, I'm definitely aiming for a metal cutting mill that also does PCBs
[15:36:43] <jmkasunich> the spindle will be about 1/2 HP
[15:36:56] <jmkasunich> but small tools only - 1/8" shank
[15:37:13] <steve_stallings> still planning on a wide gantry that can accomodate head tilt like you mentioned at last fest?
[15:37:23] <jmkasunich> not on this machine
[15:37:31] <jmkasunich> strictly 3 axis
[15:37:56] <cradek> jmkasunich: get back to work and don't come back until you have more photos for us
[15:37:56] <steve_stallings> so.... yet more projects in your future
[15:40:18] <piasdom> why are "edit" and "edit tool table" under file grayed out in axis ?
[15:40:23] <archivist> rotate 180 deg on the bench and make into a trunion 5 axis
[15:41:14] <cradek> piasdom: because you have not set [DISPLAY]EDITOR (doc here: http://www.linuxcnc.org/docs/devel/html/config_ini_config.html#sub:%5BDISPLAY%5D-section
[15:41:18] <cradek> )
[15:42:54] <piasdom> cradek: thank you
[15:43:33] <cradek> I wish guis had a "why is this disabled?" feature
[15:43:40] <cradek> I think it would help with discoverability
[15:43:55] <cradek> wonder if something like tooltips could be used for that.
[15:44:15] <BJT-Work> can you have a different tool tip if it is disabled?
[15:44:18] <cradek> (remember the question mark button in windows 95?)
[15:44:34] <archivist> seems a good idea
[15:44:34] <cradek> BJT-Work: not sure.
[15:44:53] <archivist> * archivist expects over the weekend :)
[15:45:35] <cradek> archivist: I don't think you can do it in just one application and have it discoverable. it's hard to do anything that all applications don't already do.
[15:46:18] <cradek> we've had 10 years of pretty much no innovation in GUIs and this is where we're going to be stuck for a while...
[15:46:32] <archivist> dunno, its someting I do in html and in that case I can think of a method to change wording
[15:46:49] <cradek> I guess we got scroll wheels in the last 10 years
[15:47:16] <archivist> just change the hover text on greyed
[15:47:52] <jmkasunich> quick-n-dirty mockup: http://jmkasunich.com/pics/imgp2932.jpg
[15:47:55] <cradek> archivist: sure but I don't know if it would be discovered (because a user doesn't know to hover over a disabled thing to tell why)
[15:48:15] <alSMT> cradek: what HOME_LATCH_VEL do you use on your max and what type of accuracy do you get?
[15:48:16] <jmkasunich> pay no attention to the clamp
[15:48:24] <cradek> jmkasunich: that is going to be so slick
[15:49:08] <BJT-Work> jmkasunich: sweet!
[15:49:08] <cradek> alSMT: since home switches are read in the servo cycle, you should go a speed no faster than a whole or half step per servo cycle.
[15:49:43] <archivist> * archivist notes the clamp for later evidence
[15:49:47] <cradek> alSMT: I get pretty good repeatability (homing to the same step over and over)
[15:50:39] <cradek> jmkasunich: are those 123 or 246?
[15:50:41] <alSMT> thanks
[15:50:48] <jmkasunich> 246
[15:51:16] <jmkasunich> the quill is going to be 1.5" bar - I think that piece I used is the right size
[15:51:17] <cradek> ah I see a roll of paper towels now - I was struggling to get scale
[15:51:51] <jmkasunich> a better representation would be if I had bolted the Y rail to the front of the 246 blocks, instead of on top
[15:51:59] <jmkasunich> that way the Y carriage could use the full length of the rail
[15:52:20] <cradek> you're going to flycut that .750 plate?
[15:52:22] <jmkasunich> and of course, the 246 blocks should be outside the width of the table, and the X rails underneath
[15:52:27] <jmkasunich> yes
[15:52:52] <jmkasunich> at MPM, I will flycut the top of the frame, mate the table to the frame, cut the t-slots in the table, and flycut the top
[15:53:20] <cradek> neat.
[15:53:21] <jmkasunich> seven 1/4" t-slots on 1.5" centers
[15:54:09] <cradek> does that mean for T nuts that take 1/4" screws?
[15:54:13] <BJT-Work> do you think it will warp when you cut the t-slots?
[15:54:14] <jmkasunich> yes
[15:54:19] <cradek> that's a nice size.
[15:54:19] <piasdom> where do i place the EDITOR = gedit in my ini file...it's not listed
[15:54:23] <jmkasunich> bjt - hope not
[15:54:29] <jmkasunich> I think I want to cut the slots first
[15:54:47] <jmkasunich> then flip the table over and flycut the bottom in a zero-stress state (3 point clamping, etc)
[15:54:57] <cradek> piasdom: DISPLAY
[15:55:02] <jmkasunich> then glue the newly flat bottom to the frame, and finally flycut the top
[15:55:11] <piasdom> cradek: thanks again
[15:55:18] <archivist> jmkasunich, are you going to skim both sides of the tabletop
[15:55:24] <jmkasunich> I'm gonna think that thru at MPM, and also ask Stuart's advice
[15:55:33] <BJT-Work> piasdom: http://www.linuxcnc.org/docview/html//config_ini_config.html#sub:[DISPLAY]-section
[15:55:37] <jmkasunich> archivist: yes
[15:56:07] <archivist> going to be one solid pcb mill
[15:56:29] <cradek> BJT-Work: I see that the AXIS-specific section is under the [DISPLAY] section, but maybe it could be more explicit that those things also go in DISPLAY. what do you think?
[15:56:51] <BJT-Work> * BJT-Work goes back to read it again
[15:58:41] <BJT-Work> yea, it is a sub sub section under the display sub section. It would look better if it was a *subsubsection so the axis part is not numbered I think
[16:01:02] <piasdom> i added editor..but it doesn't work(still gray) i restart axis..do i need to restart system ?(don't think so)
[16:02:35] <piasdom> i placed it under PROGRAM_PREFIX
[16:03:48] <piasdom> like this EDITOR = gedit
[16:03:56] <cradek> placed what under PROGRAM_PREFIX?
[16:04:14] <cradek> oh under that line you added the new line, I understand
[16:04:37] <cradek> that's right
[16:04:46] <cradek> did you turn machine on?
[16:05:55] <piasdom> no...just tried to edit a file
[16:06:00] <piasdom> machine works
[16:06:08] <cradek> maybe you edited the wrong ini?
[16:06:38] <piasdom> got it...guess it took time :)
[16:06:47] <piasdom> thanks
[16:06:57] <cradek> what was wrong?
[16:08:19] <piasdom> don't know...i restart emc a number of times
[16:08:31] <piasdom> was only editing the one file
[19:09:26] <steve_stallings> steve_stallings is now known as steves_logging
[20:54:34] <alex_joni> good night all
[20:54:54] <Vq^> g'dnite mr Joni
[21:07:18] <rektide> i'm interested in using a CNC machine to do 4 or 5 DOF laser cutting.
[21:07:24] <rektide> looking at the wiki
[21:07:29] <rektide> the one thing i'm having a hard time discerning
[21:07:36] <rektide> is what kind of hardware linuxcnc is used on
[21:08:00] <rektide> (cutting foam with a fiber coupled 30w diode laser)
[21:08:19] <rektide> (i'd been half intending to build/modify a reprap for the purpose)
[21:10:37] <archivist> hardware? PC of some sort
[21:10:59] <archivist> with as low latency as possible
[21:11:24] <rektide> cnc hardware
[21:12:07] <rektide> i dont own any now-- part of the reason i was considering bui/modifying a reprap
[21:12:21] <archivist> from homebrew to retrofit
[21:13:40] <toastatwork> anything you can hang motors off of, or has motors pre-hung
[21:14:31] <archivist> rektide, some examples http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?Case_Studies
[23:23:18] <archivist> * archivist does a few FIVE axis moves