#emc | Logs for 2010-07-13

[00:54:00] <Valen> lots of sirens
[02:02:31] <k0sh> o hai 'yall :)
[02:02:59] <Valen> oh snap ;->
[02:03:14] <Valen> nice nick my man
[02:03:53] <k0sh> :)
[02:05:23] <k0sh> any pointers on where to get hardware to controller, im looking for as much cots-approach as possible, so if ready-assembled thingies like http://www.piclist.com/techref/io/stepper/linistep/index.htm#kits would be out there im happy to use them, but im looking for some good list of such things to know from what to chose from
[02:05:42] <Valen> I use mesa hardware
[02:05:51] <Valen> wiki.linuxcnc.org/cgi-bin/emcinfo.pl?JakeAndRussells
[02:09:25] <k0sh> looks pretty, i aim at 4 axis, but i guess im after 2 things at momemnt, readymade solution to controll axis motors that will run emc2, some motors - preferably the one i can recycle from electronics scrapyard or new if those are cheap
[02:09:43] <k0sh> motors i think i can find myself, but i have problem with controller
[02:10:59] <Valen> mesa have everything off the shelf for servo style motors
[02:11:07] <k0sh> the most headache free controller solution out there would be the best to handle 4 axis with potential for 6
[02:11:19] <Valen> mesa can run a buttload lol
[02:11:34] <Valen> depends on how much you want to spend and what power you want
[02:11:48] <k0sh> i guess 2a per motor will do
[02:12:04] <Valen> mesa and the quad 100W driver sounds about right then
[02:12:20] <Valen> this is for servo though, not stepper
[02:12:37] <k0sh> i only know blackmesa and mesa-graphoics diver for linux, any links for mesa youre refering to?
[02:12:41] <k0sh> :)
[02:12:52] <Valen> http://www.mesanet.com/
[02:12:55] <k0sh> thx
[02:14:34] <k0sh> hmm.. i was thinking on gumstix (since im thinking on using it as brains for other projects), but i havent found if it is supported by emc
[02:14:54] <Valen> a 5i23 and a 7i30 with perhaps a 7i22 for some additional IO
[02:15:13] <Valen> use an intel atom board, they seem to be the best platform currently
[02:21:34] <k0sh> hmm..
[02:22:28] <k0sh> i kinda look after a blackbox that i can plug some cable to connect to pc to feed it with data, and to connect wires from motors from other side :)
[02:28:52] <Valen> you plug the 5i23 into the computer
[02:28:59] <Valen> plug the ribbon cable into it
[02:29:08] <Valen> into the 7i30
[02:29:13] <Valen> plug motors into there
[02:29:49] <Valen> continue the ribon cable (or use another one) to the 7i22 and use it for turning spindles and water on/off
[02:30:03] <k0sh> hmm.. :)
[02:32:01] <k0sh> ill think on that ones and use them if i wont come up with something more together, thx for pointing them out, they look as a good solution if i wont gogle up anything else :)
[02:32:24] <Valen> your not going to find something more integrated than that
[02:32:40] <Valen> everybody seperates motor drivers from everything else
[02:32:41] <k0sh> yeah, so far i noticed
[02:34:53] <k0sh> hmm.. sounds like a good idea
[03:52:22] <ries> hello, I am modifying QCad to allow for simple profile operations, do you think it's ok to save a additional file next to the main dxf with the cam operations data?
[03:52:31] <ries> I don't see any place where else to store it...
[04:57:31] <alex_chally> a seriously OT question, anyone here playing the SC2 beta/
[04:59:17] <k0sh> i know some ppl who do if you wanna contcat, but theyre not from here
[05:08:34] <k0sh> alex_chally: plus, springrts.com is so far superior than sc2 than it just hurts when i see people talking about it :) there is more human interaction in spring and more team play, sharing resources, keeping eachothers backs, and its more dynamic :)
[05:09:00] <k0sh> oh, and its completly free as in gpl/opensource :)
[05:09:18] <alex_chally> right, but it is not starcraft :D
[05:09:24] <alex_chally> * alex_chally loves him some protoss
[05:10:31] <k0sh> alex_chally: try some spring, if you like playing closely with others as a team then its for you, if you wanna race with yourself against tech tree and occasionally attack somone than sc is for you :)
[05:10:45] <k0sh> i liked sc, but spring won me with awesome team play
[05:12:12] <k0sh> alex_chally: http://netcore.mine.nu:60000/_share/2009-12-05-184100_1280x961_scrot.png
[05:13:01] <k0sh> battle pans before game: http://netcore.mine.nu:60000/_share/2009-12-22-041511_1280x961_scrot.png each color is each player
[05:13:43] <elmo40> springrts looks interesting. never heard of it before
[05:14:06] <alex_chally> k0sh, is it all micro?
[05:14:11] <alex_chally> or is there a macro element?
[05:15:38] <k0sh> alex_chally: no, its like pachinko mostly, you set up paths along which you send units, and then operate on army level, you can micro to the level of playing an unit in fps way if you want, there are also micro-ai's that do microing for you :)
[05:16:06] <k0sh> its more about being in right place at right time for your teammates
[05:17:01] <elmo40> hrmm, the only game I wanted to play and it says no longer being developed :( http://springrts.com/wiki/War_Evolution
[05:18:28] <k0sh> elmo40: it was kinda weak mod, best one is CA
[05:22:21] <k0sh> there is also more fun to it, like occasionally sth like this shows up :P http://netcore.mine.nu:60000/_share/2009-12-09-211912_1280x961_scrot.png
[05:24:23] <k0sh> elmo40: ca: http://www.youtube.com/watch?v=2mKhQD2SVqw
[05:24:30] <elmo40> scrot is a great screen shot app.
[05:26:34] <Valen> last time I looked at spring it was basically Total Annihilation in GPL form
[05:26:51] <k0sh> Valen: now its like in that link i posted :)
[05:27:28] <k0sh> http://www.youtube.com/watch?v=T7V3SqrO2aU
[05:28:02] <Valen> giant penises?
[05:28:09] <Valen> not seeing that as an improvement really ;-P
[05:28:10] <k0sh> yup :)
[05:28:50] <k0sh> thats the teamplay element, that draw feature is often also used to do instant planning of what to do, where to setup defences
[05:29:16] <k0sh> but i rather ment those youtube links :)
[05:30:24] <k0sh> Valen: it engine evolves, it can do something like: http://www.youtube.com/watch?v=lgMRwVyR-20
[05:31:59] <Valen> I have played it before
[05:32:11] <Valen> hawk rush ftw
[05:32:29] <k0sh> :0
[05:32:31] <k0sh> :)
[05:33:39] <Valen> < porcupine
[05:34:52] <k0sh> i liked dropping t2 aa near somones fighter lines, and then advancing aa party with some heavy tanks, and sending small t2 bomber raid on exposed fcilites when figher guy lost all fighers or pulled them out :D
[05:35:17] <Valen> I never bothered with fighters
[05:35:28] <Valen> bomb the crap out of something and run for home
[05:36:01] <k0sh> well, fighter lines are there to prevent that :)
[05:36:23] <Valen> only works if you don't have enough bombers
[05:36:39] <Valen> keep in mind I play defensive, sit and build
[05:36:48] <Valen> then go blow up the commander in one hit ;->
[05:37:04] <Valen> with 200 or so T2 bombers
[05:37:09] <k0sh> :)
[05:37:23] <k0sh> it doesnt work on balanced 8 vs 8 player games :)
[05:38:07] <Valen> well it becomes 8 V 7 pretty quick then ;-.
[05:38:41] <k0sh> lol.. i dont think you would manage to assemble 200 bombers before fighter screen would be up :D
[05:39:08] <Valen> fighter screen isn't going to block a massed attack
[05:39:12] <Valen> on a single target
[05:39:23] <Valen> sure it might take out 20-40% of the rush
[05:39:25] <k0sh> 200 bombers takes a lot of time
[05:39:44] <Valen> hence the defensive porcupine strategy ;->
[05:40:08] <k0sh> nope.. you would have to push your own figher screen to break through, and it wouldnt solve the on land aa :)
[05:40:10] <Valen> pisses people off who like fast games I'll grant you
[05:40:28] <Valen> I've used it successfully many times
[05:40:42] <k0sh> Valen: not really, it pisses of your teammates who will complain youre playing simcity :P
[05:41:06] <Valen> if I play in a team I generally do defence
[05:41:36] <k0sh> one combomb and your defence is down, with synchornized land attack afterwards :)
[05:42:01] <Valen> that is why god invented long range artellery
[05:42:28] <k0sh> you wont have time to build all of this on normal 8 vs 8 game
[05:42:43] <Valen> if you say so
[05:42:50] <Valen> sounds like I wouldn't like it much
[05:43:19] <k0sh> you have to play well with others in spring :)
[05:43:39] <Valen> sounds like all the games last about 5 minutes
[05:43:47] <k0sh> lol
[05:43:57] <k0sh> games last usually 45min-1hr
[05:51:52] <k0sh> that is why i dont play anymoe, i dont have time atm for it :)
[05:52:11] <k0sh> but if you have some spare time and wanna play something fun spring is for you:)
[05:54:56] <k0sh> http://pics.kuvaton.com/kuvei/redneck2.jpg
[08:47:20] <Fox_M|afk> Fox_M|afk is now known as Fox_Muldr
[10:37:25] <darren> darren is now known as redwizard-kde
[13:54:06] <elmo40> http://www.cs.uiowa.edu/~jones/step/highlevel.html
[13:55:31] <elmo40> http://www.buildyouridea.com/cnc.html
[14:10:07] <elmo40> now this is a different way to turn a part... http://www.youtube.com/watch?v=wbfXXeiSHsw
[14:11:35] <JT-Hardinge> somebody has too much time on their hands this morning :)
[14:34:00] <cradek> as long as you don't need a tailstock, a mill can make a decent lathe
[14:49:27] <skunkworks> tail stock? I am sure you could rig something up... ;)
[14:50:52] <skunkworks> cradek: if you would have added a g64pmumble to the threading program you made - would it blend better?
[14:51:03] <skunkworks> (at the fest)
[14:55:48] <skunkworks> * skunkworks still thinks if the accelleration was set to something reasonable.. it would have worked better. ;)
[15:12:44] <Jymmm> Morning
[15:13:18] <dimas> morning
[15:13:32] <Jymmm> * Jymmm passes a note to SWPadnos in skool
[15:13:47] <SWPadnos> shhh. the teacher is watching
[15:14:00] <Jymmm> is she hawt?
[15:14:09] <SWPadnos> can't see that far
[15:14:11] <elmo40> 'too hot for teacher'
[15:15:38] <Jymmm> SWPadnos: the paperwork and 2000 Lbs of lead weights are on the way.... COD
[15:15:46] <SWPadnos> thanks
[15:15:49] <SWPadnos> I love lead
[15:16:36] <Jymmm> beter than asbetos
[15:16:49] <SWPadnos> well, asbestos with lead sauce is the best
[15:17:11] <Jymmm> asbestos with mercury sauce
[15:18:37] <archivist> asbestos with mercury sauce cooked in lead
[15:18:59] <JT-Work> in a closed room
[15:19:30] <archivist> add arsenic to taste
[15:19:56] <Jymmm> asbestos with mercury sauce cooked in lead, with a touch of nuclear waste sprinkled on top
[15:20:04] <JT-Work> and some heat treating salts to bring out the favor
[15:20:27] <elmo40> don't forget the magnesium sparklers ;)
[15:21:09] <Jymmm> and THC on the side!!!
[15:22:04] <archivist> tool height control on the sparklers?
[15:22:07] <elmo40> :O
[15:22:14] <elmo40> lol
[15:22:29] <Jymmm> JT-Work: Tell archivist what THC is
[15:23:04] <Jymmm> Whats the common name for shower board? It's the same stuff white boards are made from.
[15:27:05] <cradek> it's usually some kind of coating on masonite
[15:27:46] <Jymmm> Yeah, I'm just trying to find a more common name for it to find it on HD website
[15:28:27] <elmo40> http://cncteknix.com/portal/index.php
[15:28:47] <Jymmm> I know they have it, I just saw it in the store for $12, just can't find it on the website.
[15:32:30] <elmo40> http://web.gramlich.net/projects/cnc/index.html
[15:41:44] <JT-Work> Jymmm: Melamine tile wall panel
[15:42:08] <JT-Work> THC = Torch Hand Clobber
[15:42:40] <Jymmm> * Jymmm smacks JT-Work with a gopher carcass
[15:42:54] <Jymmm> http://en.wikipedia.org/wiki/Tetrahydrocannabinol
[15:44:47] <Jymmm> JT-Work: HD website is worthless, thanks though.
[15:45:19] <JT-Work> yea, pretty much... same as the store... but if that is all you got...
[15:46:32] <Jymmm> Well, the HD closest to me is worthless, but a couple of the others in the area are great.
[15:46:40] <tom3p> the generic name for the water resistant board is Melmac :) http://en.wikipedia.org/wiki/Melmac_(planet)
[15:47:10] <Jymmm> Sorry, we could not find any matches for "melmac" Please check your spelling or search for a different key word.
[15:51:44] <tom3p> maybe some copy & paste 'feature' http://en.wikipedia.org/wiki/Melmac
[15:52:12] <elmo40> http://www.gloomy-place.com/cnc.htm
[15:55:05] <skunkworks> elmo40: emc just works..
[15:55:41] <elmo40> just works indeed...
[15:56:08] <elmo40> only pasting random cnc links... give people ideas
[16:08:27] <tom3p> updated pycam http://sourceforge.net/projects/pycam/
[16:29:00] <awallin> tom3p: someone was blogging that pycam takes 10hours+ to calculate fairly simple paths...
[17:05:16] <elmo40> http://code.google.com/p/cam-occ/
[17:27:07] <Jymmm> elmo40: Instead of pasting various links here, why not add them to the wiki?
[17:32:48] <elmo40> I rarely frequent the wiki... but don't tell anyone that
[17:33:46] <Jymmm> elmo40: Well, it's kinda a waste to just toss links here without a way to reference/categorize them and to refer someone to a page with them
[17:34:58] <elmo40> true. odds are one person would find them helpful
[17:34:59] <elmo40> ;)
[17:35:43] <Jymmm> elmo40: I never said they weren't helpful, just not randomly pasting them in IRC is
[17:37:05] <Jymmm> sorta kinda.
[17:42:10] <Jymmm> SWPadnos: Finally getting down there... http://newspaperads.mercurynews.com/ROP/ads.aspx?advid=32664&adid=9580194&subid=30343575&type=
[17:44:20] <Jymmm> SWPadnos: YEAH BABY! 24GB RAM... http://newspaperads.mercurynews.com/ROP/ads.aspx?advid=32664&adid=9578511&subid=30339413&type=
[17:45:04] <elmo40> damn... only for $899 :/
[17:45:10] <Jymmm> alex_joni: http://newspaperads.mercurynews.com/ROP/ads.aspx?advid=32664&adid=9578511&subid=30339417&type=
[17:46:41] <jthornton> is there a cheap way to connect to a game cam about 400' from the house?
[17:46:48] <jthornton> it has USB
[17:48:36] <skunkworks> Jymmm: I have had bad luck with wd
[17:48:55] <skunkworks> * skunkworks looks at his box of bad hd...
[17:50:06] <jthornton> I didn't know your supposed to save the bad ones... I've been tossing them out
[17:51:18] <skunkworks> I save them for the maganets.
[17:51:31] <jthornton> I didn't think of that...
[17:52:15] <skunkworks> (we like to destroy them just in case someone is energetic)
[17:59:16] <alex_joni> Jymmm: doesn't work for me
[17:59:19] <alex_joni> the link I mean
[18:00:01] <alex_joni> ah. it does, but my ad-block removed the pic :D
[18:00:05] <alex_joni> cool
[19:17:53] <Jymmm> alex_joni: =)
[19:43:48] <archivist> well lots of links from everyone today...my contribution http://therevolvinginternet.com/
[19:48:16] <Jymmm> did oyu search and click on a link?
[19:48:51] <archivist> I did a search or two but didnt follow a link
[19:58:40] <skunkworks> youtube videos don't play rotating ;)
[20:07:20] <JT-Hardinge> * JT-Hardinge wonders why my Z offsets were messed up...
[20:13:24] <skunkworks> cradek: when you get a chance you should take a video of your tool changer. :)
[20:15:37] <cradek> oh have I never done that?
[20:15:55] <JT-Hardinge> skunkworks: I have one of mine on the forum
[20:16:07] <JT-Hardinge> I think it is the same as cradek
[20:16:18] <cradek> I've got a problem lately though - my Y tach has a bad spot on it
[20:16:31] <JT-Hardinge> oww
[20:16:36] <cradek> JT-Hardinge: I think he means the mill?
[20:17:05] <cradek> JT-Hardinge: yeah it goes bang-bang-bang-bang during rapids (I turned it down to 100ipm so it doesn't beat itself up)
[20:17:22] <cradek> it comes and goes - and I've had the tach apart and it looks fine
[20:18:06] <JT-Hardinge> oh, I thought he was talking about the lathe
[20:23:01] <cradek> duh
[20:23:17] <cradek> I was trying to figure out how to find the dead/trouble spot
[20:23:31] <cradek> it only does it when moving fast(ish)
[20:23:37] <archivist> cable fault?
[20:23:40] <cradek> if it's moving fast how the heck am I supposed to stop it in the right orientation?
[20:23:51] <cradek> archivist: no, it's exactly one bang per screw revolution
[20:24:26] <cradek> obviously I can do it with halscope (plot banging (velocity) and axis position)
[20:28:24] <SWPadnos> is the screw directly driven (or at a 1:1 ratio)?
[20:28:55] <andypugh> I might have a bargain eBay purchase, I might not.
[20:29:09] <cradek> yes directly
[20:29:39] <andypugh> It is a dead Point-of-Sale terminal. Basically a Mini-ITX motherboard, 15" LCD touchscreen, hard drive, PSU, magnetic card reader etc etc.
[20:29:56] <andypugh> Looks like the PSU is dead.
[20:30:00] <SWPadnos> hmm. so it's hard to tell if it's a screw problem or a motor problem (unless you've already answered that question to your satisfaction)
[20:30:25] <cradek> it comes and goes, and when it's doing it, a (real) scope shows a problem on the tach output
[20:30:40] <cradek> but yeah, I guess it's maybe possible the screw is doing it
[20:30:50] <cradek> that's the screw (nut) I rebuilt
[20:30:51] <SWPadnos> ok, so you can see that the tach changes before the PWM/command changes
[20:31:29] <JT-Hardinge> isn't the tacho an analog output of some kind?
[20:31:39] <cradek> yes
[20:32:02] <cradek> SWPadnos: say again?
[20:32:24] <cradek> hey look! http://timeguy.com/cradek-files/emc/IMAG0105.jpg
[20:32:27] <SWPadnos> well, if you see that the tach feedback changes before the PWM output changes, then the tach is likely at fault
[20:32:32] <cradek> this is hooked directly to the tach
[20:32:54] <cradek> SWPadnos: I don't have an easy way to tell that...
[20:33:15] <SWPadnos> hmmm, yeah, the tach output would change first anyway, even if it's a physical issue with the screw/mount/bearing ...
[20:33:27] <SWPadnos> well, a 2-channel storage scope would be one way
[20:33:31] <SWPadnos> you can see what happens first
[20:33:48] <cradek> I used up both channels (difference mode) for the tach
[20:34:08] <SWPadnos> ah
[20:34:15] <cradek> the PS on this machine is not isolated - I'm super careful not to blow the whole works up
[20:34:28] <SWPadnos> that's a good plan
[20:34:51] <cradek> well I can always turn it off and turn the screw by hand
[20:35:15] <SWPadnos> true
[20:35:47] <SWPadnos> or use HAL to drive the motor at (what should be) a constant rate, and see what happens
[20:36:00] <SWPadnos> no PID in HAL, just a constant output to the servo drive
[20:36:57] <cradek> kinda scary - it has to go 200-300 ipm to do it, and there's only about 18" of travel
[20:37:03] <SWPadnos> mmm
[20:37:18] <SWPadnos> maybe a limit3 could help
[20:37:33] <cradek> I could turn the whole works off, scope the tach output, and lean on the table until it moves
[20:37:39] <SWPadnos> yeah
[20:37:51] <cradek> if it feels smooth but the scope shows the disturbance it's probably real
[20:38:32] <cradek> I wouldn't even have to take anything apart for that - I can scope at the amp
[20:38:36] <cradek> yes I'll do that test
[20:38:48] <cradek> I may have to get help leaning on it hard enough :-)
[20:40:12] <SWPadnos> heh
[20:41:45] <cradek> hope it's still doing it tonight, now
[20:42:03] <cradek> it only does it moving one direction
[20:44:35] <SWPadnos> bbl
[20:49:14] <skunkworks> Yes - I meant the mill.
[20:50:48] <andypugh> I am beginning to conclude this Point-of-sale unit was a non-bargain.
[20:51:24] <andypugh> The LCD is LVDS, and the touchscreen part appears proprietary
[21:42:21] <JT-Hardinge> is there an easy way to have a cycle timer in Axis?
[21:46:10] <ds2> do a fast (~100-120MHz) 486 have any chance of doing something useful with EMC?
[21:47:15] <JT-Hardinge> ds2: pop the livecd in and see if it runs...
[21:57:06] <ds2> JT-Hardinge: it isn't that simple
[21:58:34] <alex_joni> ds2: unlikely
[21:58:54] <alex_joni> RT won't work on < 586, because of a missing TSC
[21:59:02] <ds2> thanks
[21:59:13] <alex_joni> maybe with a very old version of emc
[21:59:19] <ds2> the reason I ask is there are these embedded boards with a 486 core on them
[21:59:20] <alex_joni> but it's not worth the trouble
[21:59:42] <alex_joni> get an atom miniITX or such
[22:00:05] <ds2> those boards are sub $50
[22:00:30] <ds2> I'll stick with my dual PII til I find something better at teh right price
[22:02:52] <alex_joni> ds2: http://www.newegg.com/Product/Product.aspx?Item=N82E16813130281&cm_re=intel_atom_mini_itx-_-13-130-281-_-Product
[22:03:41] <ds2> I'd need 3 of those to replace my single dual PII
[22:05:21] <redwizard-kde> am i right in thinking i can only run emc on 1 port at a time? i cant e.g. run 2 ports?
[22:06:16] <alex_joni> redwizard-kde: what kind of ports?
[22:06:27] <redwizard-kde> parallel ports
[22:06:39] <alex_joni> you can control up to 8 parports in emc2
[22:06:45] <redwizard-kde> ooo
[22:06:46] <redwizard-kde> nice
[22:06:52] <redwizard-kde> thats rather nice
[22:07:30] <ds2> AFAIK, you can only control 1 machine at a time regardless of the number of parallel ports
[22:07:40] <alex_joni> ds2: right
[22:07:45] <alex_joni> but up to 9 axes
[22:08:02] <ds2> but 1 spindle?
[22:08:11] <alex_joni> define spindle?
[22:08:15] <redwizard-kde> nice
[22:08:23] <ds2> the thingie that M03/M02 effects
[22:08:34] <alex_joni> you can have more than one
[22:08:41] <alex_joni> but it's harder to control from g-code
[22:09:11] <ds2> so I can control a lathe, mill, and laser cutter at once (2axis, 4 axis, 2 axis)... it'd just get really nonstandard G-code wise?
[22:09:25] <alex_joni> hmm.. nope
[22:09:33] <alex_joni> you can only do circles for XYZ
[22:09:40] <alex_joni> harder to do code on UVW, ABC
[22:09:45] <alex_joni> ABC are rotaries usually
[22:09:46] <ds2> Oh
[22:10:11] <ds2> but if I convince my cam software to generate a polar based posted, it might work?
[22:10:31] <alex_joni> I wouldn't think so
[22:10:38] <redwizard-kde> i have some salvaged motors i'm going to be using and its a mix of 4 pin steppers and other combinations of pins for the encoded dc motors
[22:10:41] <alex_joni> it's really hard to control 3 machines
[22:10:53] <redwizard-kde> so knowing i have more than 1 port available is good
[22:11:41] <redwizard-kde> e.g. i have a motor in front of me that has 11 pins into it
[22:12:38] <andypugh> JT-Hardinge: Cycle timer?
[22:13:29] <JT-Hardinge> andypugh: yes
[22:13:48] <andypugh> http://wiki.linuxcnc.org/emcinfo.pl?SimpleCycleTimer
[22:14:16] <roberth_> go for it JT-Hardinge i always need to know how long my parts take to make, and you can never find where you lst layed down the stop watch
[22:14:31] <andypugh> Let me edit the page so that a search actually finds it...
[22:14:35] <JT-Hardinge> LOL
[22:16:04] <Valen1> somebody be hijackin mah nick
[22:16:08] <Valen1> we'll see about that
[22:16:27] <Valen1> Valen1 is now known as Valen
[22:16:44] <Valen> that'll learn em
[22:17:51] <andypugh> Anyone know how to drive LVDS panels from a VGA port?
[22:18:22] <andypugh> Annoyingly some Atom boards have LVDS built-in, but not the one I have on order.
[22:19:37] <andypugh> Alternatively, how well will a 1.2GHz Celeron run EMC2?
[22:20:10] <JT-Hardinge> neat timer andypugh
[22:20:29] <alex_joni> andypugh: http://emea.kontron.com/products/boards+and+mezzanines/embedded+motherboards/motherboard+graphic+adaptor+cards/addlvds.html?searchterm=lvds
[22:20:35] <andypugh> I bought one of these for £10.50 on eBay http://www.racoindustries.com/pt6800.htm
[22:21:15] <andypugh> No AGP, I don't think.
[22:21:46] <alex_joni> there's also an older board CRTtoLCD-2-JILI from kontron
[22:21:52] <alex_joni> which converts a VGA to LVDS
[22:21:57] <alex_joni> maybe on fleabay?
[22:22:37] <alex_joni> http://cgi.ebay.com/Kontron-aFLAT-Series-CRTtoLCD-MTA1-LC-LCD-Controller-/260515784912
[22:23:43] <andypugh> Yes, thanks, but, that makes it cheaper to throw this panel away...
[22:23:51] <alex_joni> probably twice the cost of a new atom
[22:24:35] <andypugh> The existing motherboard bolted to the back of the panel is a 1.2GHz Celeron. I guess that might run EMC2?
[22:24:43] <cradek> andypugh: it might run it adequately if you put in plenty of ram
[22:25:07] <andypugh> There is a P-port on a breakout board.
[22:25:10] <cradek> real P3 works great - but celerons are a lot worse than real P3s
[22:25:22] <andypugh> (Or a mini-PCI, I guess that is no good?)
[22:25:49] <andypugh> Ah, that reminds me. A good question on CNC Zone. Let me find it.
[22:26:20] <JT-Hardinge> nice write up on the cycle timer andypugh
[22:27:12] <alex_joni> SWPadnos: here's a cutie for you http://emea.kontron.com/products/boards+and+mezzanines/embedded+sbc/pitx+25+sbc/pitxsp.html
[22:27:38] <andypugh> Post 7 here: http://www.cnczone.com/forums/showthread.php?postid=798957
[22:28:23] <JT-Hardinge> alex_joni: finds all the neat stuff on the web
[22:28:26] <andypugh> LVDS and backlight too....
[22:28:26] <alex_joni> andypugh: no reason pci-e parport cards shouldn't work
[22:28:38] <alex_joni> no parport though, only 4 IOs
[22:28:41] <alex_joni> and SDIO..
[22:43:14] <Jymmm> SWPadnos: and REAL headers too! Not to mention 6 USB ports.
[22:44:10] <Jymmm> SWPadnos: And look, no specialized PS either - FSCK VIA's PicoITX
[22:44:21] <Jymmm> alex_joni++
[22:46:04] <andypugh> Actually, for LVDS, all might not be lost. Look at the bottom right hand corner of http://www.insanelymac.com/forum/lofiversion/index.php/t208425.html
[22:46:47] <andypugh> I wonder what the chances are that only the header is missing?
[23:04:55] <DaViruz> andypugh: i use a intel d945gsejt miniitx atom board to drive my lvds panel
[23:05:41] <andypugh> How hard was it to get it working?
[23:06:17] <DaViruz> i had to use intels custom drivers to use the lvds output
[23:06:46] <DaViruz> "intel embedded graphics drivers", was a little work to get them up and running but i think it's way easer in ubuntu
[23:07:11] <DaViruz> easier
[23:07:40] <DaViruz> http://daviruz.meeep.net/gallery2/v/eye-fi-dump/IMG_1859.JPG.html
[23:07:43] <DaViruz> http://daviruz.meeep.net/gallery2/v/eye-fi-dump/IMG_1856.JPG.html
[23:07:46] <DaViruz> something like that
[23:07:52] <andypugh> I am wondering if it will be a lot harder if the headers aren't on the board, ie is there BIOS and chip support needed too.
[23:08:55] <andypugh> Looks good.
[23:08:56] <DaViruz> actually the stock bios on the d945gsejt does not support lvds, the feature is reserved for embedded developers and intel is reluctant to share information
[23:09:14] <L84Supper> how do multiple cores effect latency jitter with the Phenom-II's?
[23:09:29] <L84Supper> have there been many comparisons?
[23:10:18] <andypugh> DaViruz: So, I might be better off just looking for a VGA panel, and throwing this one away?
[23:10:45] <L84Supper> I see that Intel D945GCLF2 has one of the best scores with SMP and isocpus=1
[23:10:51] <DaViruz> no idea
[23:11:31] <DaViruz> if you want to use a lvds panel i believe the best bet is to get a board with lvds support
[23:12:19] <DaViruz> i had to use a 10" maximum screen, that pretty much limits you to laptop panels
[23:13:12] <andypugh> Well, some versions of the board I have (Intel D510MO) do have LVDS support, and it is mentioned in the silkscreen. However the header isn't soldered on..
[23:13:38] <DaViruz> oh
[23:13:57] <DaViruz> then i'd say it's definitely worth a try
[23:14:15] <DaViruz> there are three way to enable the darn thing after that
[23:14:35] <DaViruz> the IEGD linux driver (which is kind of fiddly)
[23:14:40] <DaViruz> the IEGD windows driver
[23:14:53] <DaViruz> and dos terminate and stay resident-executable
[23:15:12] <andypugh> Sounds like not much fun.
[23:15:31] <DaViruz> i found the dos executable to be the wasiest way to experiment
[23:15:54] <andypugh> I wonder if I can use the existing motherboard as a rather oversized graphics card?
[23:16:02] <Valen> andypugh: is it a normal LCD monitor you have?
[23:16:06] <DaViruz> the intel iegd tool can generate custom video bioses also to enable the port permanently
[23:16:15] <Valen> oh nvm its a magic thing
[23:16:45] <andypugh> And how much does that tool cost?
[23:16:54] <DaViruz> it's entirely free
[23:18:59] <DaViruz> do you actually have the board in your hands to confirm the connector is not there?
[23:19:11] <DaViruz> the datasheet is very similar to the one for my board
[23:19:38] <andypugh> No, the board is strangely delayed (ordered from Amazon on the 3rd, shipped on the 8th, still not here)
[23:19:56] <DaViruz> chanses are the connector will be on the board, with a piece of tape over it
[23:20:06] <andypugh> But the Web seems to indicate the D510MO does not have it, but D510MOV does
[23:20:14] <DaViruz> that's how oh.
[23:20:17] <DaViruz> oh.
[23:22:57] <DaViruz> intel have a utility called "intel integrator toolkit" you can try
[23:23:09] <DaViruz> it can enable hidden configuration options in the bios setup
[23:23:31] <DaViruz> with luck all they've done is hidden it
[23:25:25] <DaViruz> i doubt there are significant hardware differences with and without lvds, the signal(s) is pretty much generated entirely in the chipset
[23:25:45] <DaViruz> if anything maybe somethign in the inverter driver is missing
[23:26:10] <andypugh> I need to wait until the board is in my hands, clearly
[23:26:17] <DaViruz> i'd say
[23:26:51] <andypugh> I am not sure that the integratot toolkit will help, a copy of Windows to run it costs more than a less troublesome monitor
[23:27:30] <DaViruz> i see
[23:28:05] <DaViruz> you don't need to run it on the actual machine though, it makes changes to the bios images
[23:29:04] <andypugh> OK.
[23:29:27] <andypugh> Not that I have ever messed with a BIOS image either, but there is a first time for everything.
[23:29:52] <DaViruz> it's pretty foolproof
[23:30:20] <DaViruz> not sure it's possible to brich a board even with intent
[23:32:47] <andypugh> Is that a challenge?
[23:32:54] <skunkworks> heh
[23:33:19] <skunkworks> I have only bricked a couple motherboards.... and that is over many years
[23:34:28] <DaViruz> i have bricked one bios by flashing, and one by unknown process
[23:35:04] <DaViruz> managed to borrow a eprom writer for the first, and the motherboard manufacturer was nice enough to reflash the second one
[23:35:08] <DaViruz> for free, i might add
[23:35:11] <JT-Hardinge> andypugh: is this part of the cycle timer example or an orphan addf stepgen.update-freq servo-thread
[23:35:30] <andypugh> Sounds like an orphan
[23:36:44] <JT-Hardinge> it crashed me till I took it out :)
[23:37:08] <andypugh> It's gone from the Wiki now
[23:37:19] <JT-Hardinge> :)
[23:37:34] <JT-Hardinge> I don't have a base thread so I run it all on the servo-thread
[23:37:47] <DaViruz> this heat will be my undoing
[23:37:51] <andypugh> Yes, I was looking at that just now.
[23:37:57] <DaViruz> normally we get one or two days like this every summer
[23:38:02] <andypugh> I will add a comment.
[23:38:06] <DaViruz> now it's been like this for two weeks straight
[23:39:14] <andypugh> Move to the UK, we don't really get a summer
[23:39:42] <DaViruz> the same goes for sweden, normally..
[23:39:43] <JT-Hardinge> been in the mid to high 90's for 2 months now
[23:40:52] <DaViruz> we have 32 celsius here, which is about 90 farenheit i believe
[23:41:59] <genehacker> where I live, we're having a cold day
[23:42:12] <JT-Hardinge> andypugh: any reason you use a float for pyvcp, encoder counts are s32
[23:42:22] <genehacker> it's only 32 celsius
[23:42:44] <andypugh> does pyvcp support S32?
[23:42:48] <JT-Hardinge> 379 seconds cycle time :)
[23:42:49] <JT-Hardinge> yes
[23:42:56] <JT-Hardinge> change number to s32
[23:43:02] <JT-Hardinge> <s32>
[23:43:05] <andypugh> Your turn :-)
[23:43:24] <JT-Hardinge> lol
[23:43:39] <JT-Hardinge> I'm changing my .xml file :P
[23:45:09] <andypugh> I tried running my milling machine with my servo drive and a different PWMgen earlier. With little success.
[23:45:55] <andypugh> I am wondering if the problem is that the 3 pairs of PWM generators don't necessarily run in perfect phase with each other.
[23:46:33] <andypugh> I have a feeling that there is no point having one high-side driver on, if there isn't a low-side driver also on at the same time.
[23:47:12] <JT-Hardinge> ah your using position which is a float
[23:47:42] <andypugh> You could probably use rawcounts
[23:48:14] <andypugh> But as it is, you could change PWM rate and scale to get arbitrary timer precision.