#emc | Logs for 2005-09-07

[00:07:00] <robin_sz> ooh, lots of goodies!
[00:16:18] <alex_joni> heh, check this version out: http://winterson.com/2005/06/episode-iii-backstroke-of-west.html
[00:19:31] <robin_sz> tee hee
[00:19:43] <robin_sz> chinglish!
[00:19:52] <alex_joni> ka-ching
[00:20:31] <robin_sz> * robin_sz tries to work out exactly what system the timcode is being generated by
[00:23:53] <robin_sz> probably an Avitel .. seems familair
[00:24:37] <robin_sz> how I used to hate those ... how can you make s imple job of reading timecode so damn difficult?
[00:26:04] <robin_sz> anyway ...
[00:26:27] <robin_sz> as I had the motor off the compressor .. I decided to change the poxy leaking seal
[00:27:20] <robin_sz> I ordered a full seal kit .. though I maight as well do the lot .. but only actually needed one ...
[00:27:37] <robin_sz> and which fscking seal is missing from the kit huh? can you guess?
[00:27:56] <robin_sz> * robin_sz prepares the death ray
[00:37:12] <alex_joni> * alex_joni prepares for bed
[00:37:14] <alex_joni> night guys
[00:54:26] <Jacky^> ywansss
[00:54:33] <Jacky^> *_*
[00:55:17] <Jacky^> Jymmm:
[00:56:01] <Jacky^> if the wife was a right thing
[00:56:18] <Jacky^> also jesus crist would have one
[00:56:24] <Jacky^> or not ?
[00:56:44] <Jacky^> * Jacky^ umpf
[00:56:52] <robin_sz> difficult to say as does not exist ;)
[01:03:20] <Jacky^> :\
[01:04:52] <robin_sz> usually best to leave any religous stuff out of technical channels, leads to fighting.
[01:05:14] <Jacky^> right ..
[01:07:03] <Jacky^> tryng to PID a woman .. hard hard hard ! :((
[01:07:14] <robin_sz> pid?
[01:07:38] <robin_sz> as in control?
[01:07:41] <Jacky^> pid tuning
[01:07:46] <robin_sz> I would say imnpossible
[01:08:23] <robin_sz> it is only possible to apply control loops to devices where the output is related to the input
[01:08:52] <Jacky^> :D
[01:12:40] <Jacky^> bah ..
[01:12:45] <Jacky^> G night
[01:12:50] <robin_sz> indeed
[02:02:56] <mrallen> can someone help with a little apt upgrade?
[02:03:17] <mrallen> i appear to be running 0.0.1-18 and pauls repository has 1.0-25.
[02:03:33] <mrallen> when i 'apt update; apt upgrade' it says 'emc' is being held back
[06:04:00] <cradek> mrallen: you will have to wait until tomorrow and ask paul_c
[07:29:53] <Jymmm> I am utterly surprised the huge differnce there is just by reworking the return tube of a thomson ballnut.
[07:38:07] <anonimasu> mm
[07:38:23] <Jymmm> in
[07:38:31] <anonimasu> how's things?
[07:38:54] <Jymmm> not bad I guess, still waitigng for parts.
[07:39:01] <anonimasu> hm ok
[07:40:22] <Jymmm> I rebuilt rhe ballnut and it's a BIG difference
[07:41:02] <anonimasu> ok
[07:41:04] <anonimasu> in what way?
[07:42:35] <Jymmm> anonimasu: the return tube is two 'shells', I cleaned up all the edges with a couple files.
[07:42:59] <Jymmm> it seems they are stamped out and dont seat as well as they should.
[07:44:31] <anonimasu> ah
[07:44:31] <anonimasu> :/
[07:45:35] <anonimasu> well I need to go..
[07:46:03] <anonimasu> got to weld some alu..
[07:46:12] <alex_joni> you do that
[07:46:28] <anonimasu> I hope I can get the torch in a position where I can weld..
[07:46:28] <anonimasu> :D
[07:46:36] <anonimasu> I havent seen the job yet..
[07:46:55] <anonimasu> apparently it was _tricky_
[07:47:14] <anonimasu> well laters anyway
[07:47:16] <alex_joni> tig?
[07:47:21] <Jymmm> later anonimasu
[07:48:29] <Jymmm> hi alex_joni
[07:48:41] <alex_joni> hey jepler
[07:48:43] <alex_joni> Jymmm
[07:48:47] <Jymmm> =)
[07:48:50] <alex_joni> darn.. not fully awake yet :)
[07:49:00] <Jymmm> and I'm almost in bed
[07:49:57] <Jymmm> Well, thought I'd say hi, then g'night at least =)
[07:50:16] <alex_joni> heh.. yeah
[07:50:18] <alex_joni> g'night
[07:50:24] <Jymmm> =)
[13:12:06] <Jacky^> morning
[13:13:52] <Jacky^> anyone know how to calculate correct values for R1-2 on an optocoupler circuit ?
[13:45:00] <AchiestDragon_> depends on where r1-2 is shown ,, on the input side of the optocoupler (drives a internal LED ) and you would use the same value as if driving a 20ma led
[13:47:07] <Jacky^> hi AchiestDragon_ , i'm reading at this page http://homepages.which.net/~paul.hills/SpeedControl/Optos.html but can't understand :\
[13:47:41] <Jacky^> i just need to add 3 PC187 sharp optocouplers on parport ..
[13:48:17] <alex_joni> hey Jacky^
[13:48:21] <Jacky^> looking at the datasheet i seen RD for input RL for out..
[13:48:27] <alex_joni> get the pdf for the PC187
[13:48:28] <Jacky^> hi alex_joni
[13:48:33] <alex_joni> got a link for that?
[13:48:45] <Jacky^> http://www.google.it/url?sa=U&start=3&q=http://www.ce.chalmers.se/undergraduate/D/EDA230/datablad/pc817.pdf&e=747
[13:48:54] <AchiestDragon_> ok, use a 4k7 for the parallel port side
[13:49:09] <Jacky^> i also don't know wich vcc to use..
[13:49:20] <Jacky^> 5 V its ok ?
[13:49:21] <AchiestDragon_> and that is not the correct wireing for the input side
[13:49:36] <Jacky^> alex_joni: see page 4 of 5
[13:50:17] <AchiestDragon_> dia 2 shows it better or
[13:52:30] <AchiestDragon_> but the input can be any votage (just calacualte the risistor as if you where driving a led for r1 and if the output is driving an imput to the paralell port then a 4k7 for r2
[13:52:40] <alex_joni> AchiestDragon_: don't think we have met before..
[13:52:43] <alex_joni> hello ;)
[13:52:44] <AchiestDragon_> (with r2 getting power from 5v
[13:52:52] <AchiestDragon_> hi
[13:53:06] <alex_joni> where from?
[13:53:23] <AchiestDragon_> UK, wales
[13:53:58] <alex_joni> nice
[13:54:02] <alex_joni> * alex_joni is from .ro
[13:54:28] <Jacky^> AchiestDragon_: as R2 you mean RD on input side ?
[13:56:23] <alex_joni> Jacky^: yes
[13:56:28] <AchiestDragon_> need to call shop ,, you may find better discripton , and the fomulars should be in manufactures dat sheets
[13:56:47] <alex_joni> Jacky^: what do you want to drive?
[13:56:55] <alex_joni> parport -> opto -> device?
[13:57:01] <alex_joni> or the other way around?
[13:57:14] <Jacky^> alex_joni: yes, my l297-298 drivers
[13:57:16] <alex_joni> device -> opto -> parport?
[13:57:31] <alex_joni> AchiestDragon_: are you using emc?
[13:57:33] <Jacky^> parport -> drivers
[13:57:35] <alex_joni> ok
[13:57:40] <alex_joni> so parport is input
[13:57:45] <alex_joni> and drivers is output
[13:57:47] <Jacky^> yes
[13:58:15] <Jacky^> on drivers side ive a small 5V ps
[13:58:15] <AchiestDragon_> alex_joni: no not yet , still sorting out a machine and cnc for it
[13:58:22] <alex_joni> cool
[13:58:28] <alex_joni> what are you planning to do?
[13:59:16] <alex_joni> Jacky^: I'd do it like in the picture on page 5, but with some modifications
[13:59:19] <AchiestDragon_> alex_joni: http:/www.whipy.demon.co.uk
[13:59:36] <AchiestDragon_> back in 30 mins need to call shop
[14:00:18] <Jacky^> alex_joni: good.. but i don't know how to calculate RL in output
[14:00:30] <alex_joni> 1. Rl should be below the opto (in order not to invert the signal)
[14:00:36] <alex_joni> what do you want to drive?
[14:00:40] <jepler> if 2mA is enough current, then (5-1.4) = 3.6 V / 2 mA gives a 1900 ohm resistor on the input
[14:01:05] <alex_joni> 2k7 should be ok on the input (Rd)
[14:01:22] <alex_joni> and a bit more current on the output
[14:01:31] <alex_joni> that means a smaller resistor
[14:01:31] <Jacky^> hi jepler , no idea on required current by drivers..
[14:01:41] <jepler> for the output, you might want to look at Fig 11 compared to your intended max step rate.
[14:01:45] <alex_joni> * alex_joni suggests the L297 datasheet ;)
[14:02:10] <alex_joni> jepler: if it's emc driven then 25 kHz is pretty much ;)
[14:02:28] <alex_joni> so 1k might be ok
[14:02:47] <Jacky^> sure, is emc
[14:02:56] <alex_joni> but a resistor is kinda cheap, so you might try a few till it suits you best
[14:03:04] <alex_joni> Jacky^: got a scope around?
[14:03:13] <Jacky^> analogic
[14:03:19] <Jacky^> not digital
[14:03:23] <Jacky^> 20 mhz
[14:03:37] <alex_joni> should be ok
[14:03:38] <jepler> should be fine
[14:03:44] <jepler> dual trace?
[14:03:49] <Jacky^> yeah
[14:03:54] <alex_joni> place it on the output and look at the signal
[14:04:02] <alex_joni> if it's kinda rectangular, then it's ok
[14:04:16] <jepler> trigger on the input signal
[14:04:20] <alex_joni> AchiestDragon_: www.juve.ro
[14:04:24] <Jacky^> should i see a square wave ?
[14:04:46] <jepler> if you have a square wave on the input, you should see roughly a square wave on the output too
[14:05:12] <Jacky^> i could use cal wave of scope , maybe..
[14:05:37] <alex_joni> if the opto is too slow, or the resistor is too big, then the output might not look square
[14:05:39] <jepler> that's usually a small voltage, like 200mV
[14:07:58] <Jacky^> well, thanks a lot guys
[14:08:15] <Jacky^> i'm going to assembly all in a breadboard and test it..
[14:08:21] <Jacky^> lets see..
[15:12:58] <Jymmm> Yo!
[15:33:52] <alex_joni> yo
[15:38:24] <alex_joni> * alex_joni goes home
[15:38:26] <alex_joni> later
[15:47:25] <AchiestDragon> net split again
[15:58:25] <AchiestDragon> Jacky^: this may be better for you
[15:58:29] <AchiestDragon> http://www.electronicsurplus.com/commerce/catalog/product.jsp?product_id=71126
[15:59:20] <AchiestDragon> data at http://www.datasheetcatalog.com/datasheets_pdf/6/N/1/3/6N137.shtml
[15:59:35] <dmwaters> {global notice} Hi all! One of our staffer used brackets in a kline, and this caused the servers to crash. We're working on an immediate fix for this problem, and hopefully will have something as soon as possible. I'm very sorry for the interuptions that this has caused, and thank you all for your patience.
[15:59:38] <Jacky^> AchiestDragon: yeah, nice, 10 mb
[15:59:58] <AchiestDragon> rather than the transistor for the output , thay have a built in logic gate with ttl compatable outputs
[16:00:24] <Jacky^> i know, we talked about it with paul_c time ago ..
[16:00:40] <AchiestDragon> thay tend to be faster also
[16:00:57] <Jacky^> i just want to get this pc187 working for some time..
[16:01:06] <Jacky^> i will change the drivers soon
[16:01:45] <Jacky^> i'm having a lot of issues, some day ago a parallel port pci burned :\
[16:01:50] <Jacky^> i'm testing ..
[16:02:12] <AchiestDragon> well once i got my cnc working i am planning on building a new set of stepper controls
[16:02:34] <Jacky^> AchiestDragon: i decided for geckodrive
[16:03:04] <Jacky^> after tried many homebuilt circuits..
[16:03:23] <AchiestDragon> going to use a pic i think and want to be able to get it to drive the steppers in eather unipolar or bipolar mode
[16:03:53] <Jacky^> i'm not sure if i will use steppers
[16:04:03] <Jacky^> probably, i will switch to servos
[16:04:36] <Jacky^> or .. microstep driving with high speed steppers
[16:04:56] <Jacky^> but i'm 90% sure about servos ..
[16:05:12] <AchiestDragon> dc motors and optical encoders ,, ok but can be a pain to get them to stop where you want them
[16:05:16] <Jacky^> so, i'm just playng with a toy for now :)
[16:05:51] <Jacky^> AchiestDragon: i think its not a prob with geckodrive..
[16:06:17] <Jacky^> will see
[16:07:20] <Jacky^> i want to get this 'toy' i've full working now ..
[16:07:37] <Jacky^> waiting to get a better cnc
[16:07:55] <AchiestDragon> :)
[16:08:14] <Jacky^> at the same time, i'm tryng to learn something more..
[16:08:44] <AchiestDragon> k , kool , so worth the time and trubble
[16:08:51] <Jacky^> :))
[16:09:33] <Jacky^> you've no idea what is happening here ..
[16:10:55] <AchiestDragon> im just debating wether to use dual lead screws for the x axis , think i will but looking at best way to impliment it on my machine with the materials avalable
[16:11:25] <Jacky^> i build a box for the machine, and it wont work now..
[16:11:28] <Jacky^> lol
[16:11:46] <Jacky^> take a look to my room.. http://it.pg.photos.yahoo.com/ph/gcsoftware2001/album?.dir=ea2b&.src=ph&store=&prodid=&.done=http%3a//it.pg.photos.yahoo.com/ph//my_photos
[16:12:19] <Jacky^> i'm surfing trough the cables ..
[16:12:25] <Jacky^> * Jacky^ ghghghg
[16:13:04] <Jacky^> my mother just want to kick me out of the house..
[16:13:28] <Jacky^> and she have right
[16:13:31] <AchiestDragon> :) had the same problem
[16:13:35] <Jacky^> :\
[16:14:31] <AchiestDragon> got a diferent problem at the moment , having a 2year old son , ment that i had to stop most of my electronics , not save having little bits kicking around
[16:15:01] <Jacky^> ouch ..
[16:15:36] <Jacky^> robin_sz have the same prob :D
[16:15:52] <Jacky^> i've not son or wife for now ..
[16:16:31] <Jacky^> but i live with my mother ..
[16:16:35] <cradek> you guys do know what causes that, right?
[16:16:46] <AchiestDragon> so i got whats left of my parts in storage , and need to do things when hes not arround , and tidy away
[16:17:12] <Jacky^> cradek: hi.. what ?
[16:17:24] <cradek> I mean kids
[16:17:28] <cradek> you know what causes that, right?
[16:17:46] <Jacky^> i suppose..
[16:18:05] <AchiestDragon> storks bring them dont thay :D
[16:18:18] <Jacky^> hehe
[16:18:35] <cradek> that might be what they teach in health class now in the US, I don't know
[16:18:50] <AchiestDragon> lol
[16:18:57] <Jacky^> i really need a garage .. but dont have it
[16:19:07] <Jacky^> to do these things
[16:19:24] <AchiestDragon> making kids ?
[16:19:36] <Jacky^> nahh
[16:19:41] <Jacky^> :)
[16:19:41] <AchiestDragon> lol
[16:20:37] <Jacky^> AchiestDragon: http://www.androidworld.com/prod29.htm
[16:20:37] <Jymmm> cradek: Eating watermelon seeds, right?
[16:21:22] <Jymmm> Jacky^: Hey, you DO have a scope!!!
[16:21:48] <Jacky^> Jymmm: :D
[16:22:22] <Jacky^> aniway, tried to test optocoupler,
[16:22:46] <Jacky^> sending a square wave to input, get nothing on aoutput :\
[16:23:22] <AchiestDragon> well , managed to get the basis for a driven deviding head , got a masive bearing mounted holding a 2" solid shaft with a 4" face plate , and mor interestingly a 480 tooth driving gear and worm drive
[16:24:01] <Jymmm> AchiestDragon how big a machine are you making?
[16:24:05] <Jacky^> 2 " shaft !! O_O
[16:24:27] <AchiestDragon> well it wont be for this machine ,
[16:24:53] <Jacky^> for a shuttle ?
[16:25:06] <AchiestDragon> was thinking of using it as a headstock for a lathe
[16:25:26] <Jacky^> ah.. lathe, good
[16:25:43] <Jymmm> Jacky^: On your desktop, you have Tux on a trampolean?
[16:25:57] <Jacky^> Jymmm: i've about ..
[16:26:05] <Jymmm> ?!
[16:26:11] <Jacky^> 130-140 penguins here
[16:26:14] <Jacky^> :D
[16:26:36] <Jymmm> Jacky^: No, I mean in the photos... your desktop image is Tux bouncing in the air?
[16:26:37] <Jacky^> yes, the better is that youve seen
[16:26:50] <Jacky^> in the air ?
[16:26:54] <Jacky^> nah ..
[16:26:57] <Jacky^> :)
[16:27:04] <Jymmm> Jacky^ with clouds, sun, green earth
[16:27:12] <Jacky^> hahaha
[16:27:13] <Jymmm> http://it.pg.photos.yahoo.com/ph/gcsoftware2001/detail?.dir=0491&.dnm=41d3.jpg&.src=ph
[16:27:19] <Jacky^> i know..
[16:27:46] <Jymmm> Jacky^: The person who drew that is on freenode... klowner.com
[16:27:56] <Jacky^> ah..
[16:28:07] <Jacky^> thats an old old screenshot ..
[16:28:36] <Jymmm> Jacky^: Well, just thought you might like to see his other work is all.
[16:29:19] <Jymmm> Man, where's les when yu need him!
[16:29:33] <Jacky^> my actually desktop look like this: http://www.roboitalia.com/modules.php?name=coppermine&file=displayimage&album=random&cat=12775&pos=-1274
[16:29:58] <Jacky^> using evilwm as window manager
[16:30:12] <Jacky^> i done kde ..
[16:32:18] <Jacky^> well.. time to buy cats food ..
[16:32:21] <Jacky^> later
[17:01:15] <Jymmm> les!!!!!!
[17:01:58] <les> hi jymm
[17:02:14] <Jymmm> les how ya doin?
[17:02:43] <les> ok. just cleaning some machines today and changing some stuff around in the shop
[17:02:57] <les> toothbrush and kerosene
[17:03:05] <Jymmm> les : well, better than me I suppose =)
[17:03:35] <les> Having business guests from Chicago soon
[17:04:01] <Jymmm> ah, they agreed to the 4 TRILLION dollars huh?
[17:04:04] <les> bunch of people coming down about that air generator thing
[17:04:25] <les> well, I got another purchase order
[17:04:36] <Jymmm> awesome!
[17:04:57] <les> " to play around with the fluid dynamics"
[17:05:21] <les> basically to machine a bunch of different nozzles on mill and lathe
[17:05:31] <Jymmm> heh... there ya go.
[17:05:47] <les> I have to order some tiny reamers
[17:06:05] <les> .01" holes etc
[17:06:16] <Jymmm> order soem for me too =)
[17:06:20] <Jymmm> lol
[17:06:22] <les> heh
[17:06:50] <Jymmm> actually, I guess I need to get some 1/16 and 1/8 end mills
[17:07:10] <les> These guys are from our spray gun divisions....they know how to make small holes in air caps!
[17:07:24] <les> smallest end mill I have is .01
[17:08:00] <les> they are a bit expensive
[17:08:02] <Jymmm> I have some BIG PCB mills, but that's about it.
[17:08:20] <les> yeah, I have lots of those
[17:08:32] <les> down to .02
[17:08:54] <les> I need more room
[17:09:10] <les> getting bigger machines and running out of space
[17:09:22] <Jymmm> you have 30 acres?!
[17:09:29] <les> bunch more stuff for the electronics lab
[17:09:40] <les> about 35 or so
[17:10:09] <les> do I build another structure?
[17:10:22] <les> do I want to live at a factory?
[17:10:28] <Jymmm> Gotta be cheaper in the long run than renting.
[17:10:39] <les> yeah
[17:10:54] <Jymmm> You live at the factory already. If you rented and had some nice eye candy, then that's another story.
[17:11:04] <paul_c> build on the local golf course
[17:11:14] <les> ha yeah
[17:11:39] <Jymmm> golf course?! then the only thing you'll see is old farts in funky clothing!
[17:11:54] <les> I would just expand the shop building...but remember that big oak tree behind it?
[17:12:00] <Jymmm> Now an office overlooking a tannis court might be another story.
[17:12:07] <les> no MY golf course jymmm
[17:12:13] <Jymmm> Ah, ok.
[17:12:16] <les> haha
[17:12:32] <paul_c> No Les - Build on the one across town.
[17:12:45] <les> ha
[17:13:33] <les> lets see....vmc to come in...bigger table saw, much bigger jointer
[17:13:36] <les> need room
[17:13:41] <paul_c> Tiger isn't big enough for two courses..
[17:13:49] <les> heh
[17:14:54] <Jymmm> what do you call those nuts with the plastic in them?
[17:15:25] <les> and still trying for that atc spindle...but the guy is not answering email
[17:15:35] <les> nuts with plastic?
[17:15:40] <les> nyloc nuts
[17:15:40] <paul_c> Jymmm: Nylocs
[17:15:45] <les> haha
[17:15:51] <Jymmm> might not have a house, much less an internet connection.
[17:15:56] <paul_c> or fake brazils
[17:16:14] <Jymmm> metal nuts, but the plastic on the end to lock in place.
[17:16:24] <les> yeah...gonna try again today to rech him
[17:16:46] <les> and if I get it fool around with emc auto tool change I guess
[17:16:57] <les> not a lot functional there
[17:18:20] <les> I think I could get what I need by stealing a parport lube off/on or something
[17:18:44] <les> actually that is part of the tool change logic anyway
[17:18:59] <les> need this:
[17:18:59] <cradek> remember there is motion-coordinated arbitrary digital IO
[17:19:17] <les> hi chris. Where?
[17:19:24] <cradek> umm
[17:19:36] <paul_c> M62-5
[17:19:51] <les> oh cool
[17:19:54] <cradek> yes, m62 m63
[17:19:57] <les> I could work with that
[17:20:17] <les> logic might go like this:
[17:20:26] <les> spindle off command
[17:20:33] <les> confirm spindle off
[17:20:45] <les> move to some xy
[17:20:54] <les> z move
[17:21:00] <les> release drawbar
[17:21:03] <les> confirm
[17:21:10] <les> move again
[17:21:17] <les> pick up tool
[17:21:22] <les> confirm
[17:21:27] <les> spindle on
[17:21:48] <les> something like that
[17:22:19] <les> I could put the tools in a small part of the work envelope
[17:22:27] <les> just in a row or something
[17:24:04] <les> anyway, I sure would like to not do the 24 manual tool changes a day when the turkey stuff is running
[17:24:07] <les> and
[17:24:33] <Jymmm> Can anyone think of a reason why a ballscrew would sorta bind when turn in one direction, but not the other?
[17:24:43] <les> it would be 48 or 72 a day with the bigger spindle motor
[17:25:02] <les> bind?
[17:25:11] <les> no lube or junk in the nut
[17:25:47] <Jymmm> Well, it's stalling the stepper when jogged, but in only one direction. It's lubed and no junk in the nut/threads.
[17:26:04] <les> just one little sliver will cause binding
[17:26:15] <Jymmm> but in only ONE direction?
[17:26:25] <les> could yeah
[17:26:32] <Jymmm> hmmm, ok.
[17:26:39] <paul_c> is it a double nut ?
[17:26:55] <Jymmm> I rebuilt the ballnut last night (single), so maybe that help things.
[17:27:24] <les> rebuilt? larger balls?
[17:27:45] <Jymmm> No, I cleaned up the ruturn tube so it seats better
[17:27:54] <les> oh
[17:28:04] <Jymmm> they seem to be punched and a bit rough.
[17:28:27] <les> If you do change ball size remember many use spacer balls
[17:28:34] <les> every other one is smaller
[17:28:51] <Jymmm> all these are 0.124"
[17:28:57] <les> did you tsake out the balls?
[17:29:03] <Jymmm> all 67 of them =)
[17:29:24] <les> what did you measure them with?
[17:29:30] <Jymmm> dial calipers
[17:29:59] <Jymmm> a yardstick =) lol
[17:30:06] <les> yeah
[17:30:42] <Jymmm> I found a place that offer chrom alloy grade25 balls in whatever size I need, but I didn't know about the spacer balls.
[17:30:49] <les> ball size is usually good to .000025
[17:31:06] <les> yeah the spacers might be only a tiny bit smaller
[17:31:15] <les> get a mic
[17:31:26] <Jymmm> Well, I dont know what size I should buy to preload the nut
[17:31:56] <les> you don't want to preload...just remove most of the play
[17:32:19] <Jymmm> yeah, but I still dont knwo what size.
[17:32:21] <les> to preload you need gothic arch type screws
[17:32:43] <les> how much backlash right now?
[17:32:48] <Jymmm> .004
[17:32:53] <les> yikes
[17:33:16] <Jymmm> these are the cheapest thomson ballscrews/nuts
[17:34:16] <les> well an .004 larger ball would still have a little play since the contact is a chord
[17:34:48] <les> so .1280 sounds in the ballpark
[17:35:34] <les> At HIWIN people have little trays with different sizes
[17:35:54] <les> and sit at tables with tweezers loading the nuts
[17:36:40] <les> they are cheap...get some .127, .128, .129
[17:37:45] <les> well...better get back to the shop
[17:39:07] <Jymmm> eeeesh
[17:39:34] <Jymmm> This one company has sizing kits, but I can't get ahold of the engineer yet to get any details.
[17:39:57] <Jymmm> les you know of any place to buy sizing kits?
[17:48:57] <AchiestDragon> yay ,, my new steppers just arrived
[17:49:21] <Jymmm> if they fit in you r hand closed, you go tthe wrong ones =)
[17:50:17] <AchiestDragon> no and thay are about 1kg each 2.2lb in weight
[17:53:33] <Jymmm> oh no, wrong ones... you need the one that weight 1200 POUNDS each =)
[17:53:56] <Jymmm> SOB! $125 for a zero-backlash ballnut?!
[18:03:39] <Jymmm> maybe I'll hit the industrial surplus store and see if they have any. I hate going to that place.
[18:34:38] <lilo> [Global Notice] Hi all. Apparently this was the last fallout from our previous crash. We think we've resolved the issue. Thank you for your patience.
[19:29:37] <christel> [Global Notice] Hi all! Are you waiting for a group contact form to be verified and approved? I have a large number of forms with incomplete contact details, if you believe one of these might belong to your group/project please re-submit. Also, remember that you can bump your priority by "squeeky wheeling" me either by PM or e-mail (christel@freenode.net). Thank you and have a great day!
[19:44:34] <Jymmm> In respect to Z axis... what are most setting 'zero' to be? The top of the material, or the top of table? In either case, is there gcode that signifies theither one by chance?
[19:44:57] <cradek> usually top of material
[19:45:02] <cradek> then you can control the cut depth
[19:45:20] <cradek> I set the absolute Z 0 as (slightly above) the table
[19:45:27] <cradek> and the offset Z 0 as the top of material
[19:45:39] <Jymmm> offset ?
[19:45:40] <cradek> then limits prevent an errant program from milling the table
[19:45:48] <cradek> G54 offset
[19:46:00] <Jymmm> oh, guess I'll have to read up on that.
[19:46:14] <Jymmm> is having an offset common?
[19:46:29] <cradek> if you have meaningful limits, it's pretty much mandatory
[19:46:55] <Jymmm> ok, good to know.
[19:47:41] <Jymmm> I want to toss in a ballpoint pen and at least try something (no dust guards up right now)
[20:17:40] <Jymmm> I feel so lost right now, lol. I got the machine to a semi-functioning point, and I jsut dont know where to go from here!
[20:42:57] <alex_joni> evening all
[20:46:42] <robin_sz> eveny
[20:46:55] <alex_joni> got a bugo?
[20:48:42] <robin_sz> not yet
[20:48:49] <alex_joni> :)
[20:49:32] <robin_sz> saw how the other guys weld tanks up ...
[20:49:37] <robin_sz> stick welder
[20:49:57] <alex_joni> stick? yuck :P
[20:50:08] <robin_sz> well .. you should see the weld ...
[20:50:11] <robin_sz> perfect ...
[20:50:29] <robin_sz> I think they must have been practicing
[20:50:41] <alex_joni> probably ;)
[20:51:01] <alex_joni> but then again.. it's enough to have a welder after a trashy night
[20:51:07] <alex_joni> and there goes your quality
[20:51:08] <alex_joni> :D
[20:51:14] <robin_sz> yeah
[20:51:19] <robin_sz> robots dont get drunk
[20:51:24] <alex_joni> right
[20:51:27] <alex_joni> usually not
[20:51:28] <alex_joni> :)
[20:52:05] <robin_sz> well, a robot will happily weld a nice bead along the seam, and then straight across the middle of a panel without thinking too
[20:52:35] <alex_joni> I guess ;)
[20:52:38] <alex_joni> didn't try it yet
[20:52:44] <alex_joni> but I did try some fancy stuff :)
[20:53:01] <alex_joni> there are some welding parameter lists in the control
[20:53:06] <alex_joni> about 30 params
[20:53:11] <robin_sz> he, have you seen www.bonsaikitten.com?
[20:53:14] <robin_sz> coo.
[20:53:16] <robin_sz> 30
[20:53:20] <alex_joni> smthg like: LIST 1 = (1,2,3,4,5,6,7,8,9,10,11...)
[20:53:30] <alex_joni> and there's a special editor to modify it
[20:53:34] <robin_sz> right
[20:53:38] <alex_joni> in order not to remember what each does
[20:53:46] <alex_joni> but you can modify it by hand too
[20:53:49] <alex_joni> takes less time
[20:53:57] <alex_joni> so I did that one time
[20:54:05] <alex_joni> but mixed up welding speed with wire speed
[20:54:24] <alex_joni> so I set up a welding speed of 10 cm/min with 40 m/min wire
[20:54:42] <alex_joni> usually (manual welding) you go up to 7-10 m/min max
[20:54:49] <alex_joni> this is on 1.2 MIG
[20:55:03] <alex_joni> so at 40 m/min you're WAY out of range ;)
[20:55:07] <robin_sz> 7m / min?
[20:55:22] <alex_joni> wire speed
[20:55:22] <alex_joni> not welding speed
[20:55:26] <robin_sz> right
[20:55:30] <alex_joni> 7m is about 150 Amps
[20:55:44] <alex_joni> and 40m was about 550Amps or more
[20:55:52] <robin_sz> yeah
[20:55:55] <robin_sz> spray transfer
[20:55:56] <alex_joni> max the power source could give
[20:56:09] <alex_joni> at more than 15-18 m/min it's not spray anymore
[20:56:16] <robin_sz> probably not
[20:56:17] <alex_joni> you get a rotary arc
[20:56:27] <robin_sz> probably makes a mess :)
[20:56:29] <alex_joni> not very stable
[20:56:40] <alex_joni> yeah :D
[20:56:42] <alex_joni> anyways
[20:57:02] <alex_joni> 500A+ and 10 cm/min did leave some BIG holes in the workpiece :))
[20:57:37] <robin_sz> heh
[20:57:38] <alex_joni> that's called MIG cutting :D
[21:26:53] <Jymmm> If I push PGDN, and Z moves up, what setting do I need to change?
[21:27:13] <alex_joni> change the OUTPUT_SCALE
[21:27:16] <alex_joni> make it negative
[21:27:17] <alex_joni> iirc
[21:27:27] <alex_joni> this is emc1 I guess
[21:27:33] <Jymmm> yeah
[21:28:16] <Jymmm> I still need to read up on input and output scale
[21:30:07] <Imperator_> Hi Alex
[21:30:21] <alex_joni> hey Martin
[21:30:40] <Imperator_> how was your holiday ??
[21:30:46] <alex_joni> nice
[21:31:04] <Imperator_> good
[21:31:18] <Imperator_> now we have also a very fine weather here
[21:31:22] <alex_joni> nice
[21:31:27] <alex_joni> I'll be there next week
[21:31:31] <alex_joni> going to essen :)
[21:31:38] <Imperator_> ah
[21:31:42] <Imperator_> nice
[21:32:13] <Imperator_> but they say the weather will chance close before weekend of cause
[21:33:57] <Imperator_> at the moment im fighting with servos and amps at work
[21:34:16] <Imperator_> I try to calculate the movements exactly
[21:35:33] <Imperator_> but every manufacturer of servos and amps has his own style of what he is writing to the datasheets.
[21:40:19] <mrallen> howdy. is there gcode that instructs EMC stop and wait for a tool change?
[21:40:29] <cradek> there's pause
[21:40:47] <mrallen> it's a timed pause, right? or does it wait to be restarted?
[21:40:55] <cradek> it waits for you to hit resume
[21:41:01] <cradek> M0
[21:41:05] <mrallen> great. thanks
[21:41:07] <cradek> that's what I use for manual tool changes
[21:55:23] <LawrenceG> /msg NickServ IDENTIFY 123456
[21:55:31] <LawrenceG> /msg NickServ IDENTIFY 123456
[21:55:37] <cradek> ha
[21:55:50] <cradek> /msg NickServ IDENTIFY that's not a very good password
[21:56:45] <alex_joni> heh
[21:57:31] <Jacky^> i use enter as passwd ..
[21:57:38] <Jacky^> ]:)
[21:57:43] <alex_joni> * alex_joni uses Esc
[21:57:49] <Jacky^> lol
[21:57:56] <AchiestDragon> should use a mixture of small and CAPS with some numbers mixed in and maybe even some punctuation
[21:58:16] <AchiestDragon> 8 to 12 digits long is recomended
[21:58:59] <alex_joni> best would be to use Unicode chars ;)
[21:59:10] <AchiestDragon> and diferent ones for each site
[22:00:22] <LawrenceG> too many passwords.... I'm running out of places to write them down!
[22:00:38] <AchiestDragon> but you find you need to have a small note book with them all listed in
[22:00:54] <alex_joni> lol
[22:00:58] <alex_joni> and lose that ;)
[22:00:59] <LawrenceG> black books are good until the wife finds it :}
[22:01:15] <alex_joni> btw.. did you guys hear that ATA drives have passwords?
[22:01:28] <LawrenceG> ?
[22:01:38] <alex_joni> there
[22:01:46] <alex_joni> there's somespecial ATA commands
[22:01:50] <AchiestDragon> best to have about 3 that you use for non important sites , and ones that invlove money like banking ect to have individual ones for
[22:01:51] <alex_joni> to lock the disk
[22:02:15] <alex_joni> usually laptop BIOS'es use that
[22:02:50] <AchiestDragon> yes , and things like xboxes also
[22:02:53] <alex_joni> but the desktop BIOS'es usually don't know nothing about that
[22:02:59] <alex_joni> and that's a big security flaw
[22:03:19] <alex_joni> theoretically a virus could be able to lock it
[22:03:25] <alex_joni> and there goes the drive
[22:03:37] <AchiestDragon> but if a drive has the pasword set then its locked when put in a desktop machine
[22:04:03] <alex_joni> AchiestDragon: yes, and you can't unlock it without the passw
[22:11:17] <AchiestDragon> think my g/f has the record for getting computer viruses , she managed 52 in one day
[22:11:28] <alex_joni> nice :D
[22:13:27] <Jymmm> http://www.rockbox.org/lock.html
[22:13:43] <cradek> I'm sure that's easy: use an unpatched windows machine, surf porn
[22:13:47] <cradek> with IE
[22:14:43] <AchiestDragon> well the machine had xp sp2 , and was not porn she was surfing
[22:15:08] <alex_joni> u sure? *g*
[22:15:22] <alex_joni> kidding :)
[22:15:38] <Jymmm> AH, here we go... http://www.faqs.org/faqs/pc-hardware-faq/enhanced-IDE/part2/
[22:16:49] <Jymmm> I wonder if I should try it =)
[22:17:01] <alex_joni> I wouldn't
[22:17:02] <alex_joni> :P
[22:17:19] <alex_joni> you can a).be lucky, and the BIOS already locks it
[22:17:24] <alex_joni> or b). unlucky
[22:17:29] <alex_joni> then you get to change the hdd :D
[22:17:31] <Jymmm> Could you imagine being in an office setting and someone just pisses you off to no end, toss in a boot disk and password their hdd! LOL
[22:17:40] <alex_joni> yeah
[22:18:01] <alex_joni> but you can be evil and user password the hdd
[22:18:03] <Jymmm> Like most IT flunkys are gonna have a clue! ROTF
[22:18:15] <alex_joni> that way they can still use it, but only after erasing it completely
[22:18:17] <alex_joni> =))
[22:23:45] <Imperator_> alex_joni: I think there was a news message half a jear ago, that there is a virus that sets a random passwd on your Hd :-)
[22:25:39] <Imperator_> http://www.heise.de/newsticker/result.xhtml?url=/newsticker/meldung/58166&words=Passwort%20Festplatte
[22:25:45] <alex_joni> yup
[22:27:33] <Imperator_> and for the english folks : http://www.heise.de/ct/english/05/08/172/
[22:30:19] <Jymmm> hi Imperator_
[22:30:35] <Jacky^> i build this circuit this afternoon: http://www.talkingelectronics.com/html/SquareWaveOsc.html
[22:31:03] <Jacky^> to test my optocouplers
[22:31:50] <Jacky^> the square wave its quite fine on 1 khz
[22:32:19] <Jacky^> with a small rounded cornel on left top of the wave
[22:32:26] <Jacky^> corner*
[22:32:51] <Jacky^> if i select 10 khz , thw wave looks like a triangle
[22:33:01] <Jacky^> any idea ?
[22:33:25] <Jacky^> what the range of frequency used by emc ?
[22:33:27] <alex_joni> a few
[22:33:31] <Imperator_> Hi Jymmm
[22:33:35] <alex_joni> max is 25 kHz
[22:33:44] <alex_joni> Jacky^: use faster opto's
[22:33:52] <alex_joni> use a smaller resistor on the output
[22:34:02] <alex_joni> but triangle might also work on the drives
[22:34:04] <Jacky^> actually is 4k7
[22:34:05] <alex_joni> gotta test it ;)
[22:34:15] <alex_joni> output?
[22:34:18] <alex_joni> is 4k7?
[22:34:20] <Jacky^> yeah
[22:34:28] <alex_joni> try 2 of them in paralel
[22:34:30] <Jacky^> too much high ?
[22:34:33] <Jacky^> ok ..
[22:34:34] <alex_joni> and see what happens
[22:34:43] <robin_sz> you know .. that test is not what you want to do ...
[22:34:47] <Jacky^> 10 khz are ok ?
[22:35:03] <Jacky^> i can switch from 10 to 100 khz..
[22:35:08] <robin_sz> really, you do not care how well that little oscillator can drive the optos ..
[22:35:14] <robin_sz> it is not important
[22:35:29] <robin_sz> what matters is how well the paralell port can drive the optos!
[22:35:38] <Jacky^> robin this paproprt is driving me crazy :\
[22:35:44] <alex_joni> yeah.. but first the opto's need to work ok
[22:35:49] <alex_joni> to have that out of the way
[22:35:51] <robin_sz> sure ..
[22:35:52] <alex_joni> next: parport
[22:35:55] <alex_joni> next: drives
[22:35:58] <alex_joni> etc
[22:36:06] <robin_sz> but all that proves is the oscillator has a bad output stage
[22:36:32] <robin_sz> infact ...
[22:36:49] <robin_sz> to be any real test, he needs a transistor on the output of that oscillator
[22:36:54] <robin_sz> open collector
[22:36:58] <Jymmm> robin_sz: Jacky^ has been having problemd with the optos, se he's gone to the simplest method to test them for errors/issues.
[22:37:09] <Jacky^> you mean the optocouples isnt good ?
[22:37:38] <robin_sz> Jacky^: I mean, that the waveform you are seeing ios the output of that oscilaltor
[22:38:04] <Jacky^> sure..
[22:38:28] <alex_joni> jepler: around?
[22:38:33] <robin_sz> so, the problem *might* not be the optos at all .. it is probably that the oscialtor cannopt drive them OK
[22:38:48] <alex_joni> he could scope the signal before the optos
[22:38:55] <robin_sz> indeed
[22:38:58] <alex_joni> if that looks ok, then it might be the optos
[22:39:02] <robin_sz> correct
[22:39:08] <Jacky^> its what i'm doing !
[22:39:15] <alex_joni> before the optos?
[22:39:20] <Jacky^> in the input ive a perfect wave square
[22:39:20] <alex_joni> then it's the oscilator
[22:39:24] <alex_joni> ahhh
[22:39:25] <Jacky^> sure..
[22:39:33] <robin_sz> right
[22:39:39] <alex_joni> so it's smthg to do with the opto/resistor comb.
[22:39:46] <alex_joni> try smaller resistors on the output
[22:39:48] <Jacky^> not in the output.. at some frequency
[22:39:50] <alex_joni> and try faster optos
[22:39:59] <robin_sz> if the oscillaotr produces a good sqaure wave, even with the optos connected to it
[22:40:05] <robin_sz> then yeah, its the optos
[22:40:32] <Jacky^> i don't know if you can see this page: http://www.cncitalia.net/index.php
[22:40:48] <Jacky^> it probably require to register..
[22:41:09] <Jacky^> in the electronic section theres a driver schematics using l297-8
[22:41:18] <Jacky^> it use same optocouplres :\
[22:41:24] <Jacky^> i've ..
[22:41:32] <robin_sz> although, I cant imagine ANY opto being so bad as to crap out at 10khz ...
[22:41:47] <Jacky^> ok..
[22:41:57] <Jacky^> i want to change the resistor value..
[22:42:04] <Jacky^> or.. may better,
[22:42:20] <Jacky^> what if I use a variable resistor ?
[22:42:25] <robin_sz> mmmm ...
[22:42:29] <Jacky^> 5 k
[22:42:32] <robin_sz> probably not the answer
[22:42:48] <Jacky^> ok .. let me try a second..
[22:44:01] <robin_sz> * robin_sz cannot access that silly site
[22:44:12] <robin_sz> some javascript nonsense in the links
[22:44:19] <alex_joni> lol
[22:44:46] <anonimasu> hm..
[22:44:50] <anonimasu> * anonimasu yawns
[22:45:33] <alex_joni> hey anders
[22:46:10] <robin_sz> Jacky^: I presume there is some pull-up resistor and the opto pulling down to ground .. the signal then goes into the 297?
[22:46:23] <alex_joni> yeah
[22:46:56] <robin_sz> I see what you mean, pull up might be two slow to pull the gate back up again
[22:47:11] <Jacky^> the wave look much better with 1k resistor on out, but its seem not enough yet..
[22:47:37] <robin_sz> is the R in series with the output? or pull up?
[22:48:19] <Jacky^> robin_sz: here is the schematic i followed
[22:48:20] <anonimasu> what's up?
[22:48:24] <alex_joni> pull up afaik
[22:48:24] <Jacky^> http://www.google.it/url?sa=U&start=3&q=http://www.ce.chalmers.se/undergraduate/D/EDA230/datablad/pc817.pdf&e=747
[22:48:34] <alex_joni> going to bed
[22:48:37] <alex_joni> ;)
[22:48:37] <Jacky^> page 4 of 5
[22:48:41] <Jymmm> G'Night alex_joni
[22:48:44] <Jacky^> hehe
[22:48:47] <alex_joni> not that fast ;)
[22:48:48] <Jacky^> night alex_joni
[22:48:52] <alex_joni> preparing too
[22:48:53] <alex_joni> to
[22:49:03] <alex_joni> but the decision process takes a while :D
[22:49:10] <alex_joni> * alex_joni looks at some reviews
[22:49:16] <alex_joni> I spotted a nice camera
[22:49:17] <Jymmm> alex_joni Well, please inform us in advance when you PLAN on taking a shit too =)
[22:49:18] <robin_sz> right .. a pull up
[22:49:19] <alex_joni> eos 20D
[22:49:33] <alex_joni> Jymmm: will send you a sample too
[22:49:41] <Jacky^> robin_sz: i'm using Test Circuit for Respone time .. page 4
[22:49:44] <Jymmm> alex_joni thats ok
[22:49:51] <Jymmm> alex_joni Nikon D70
[22:50:03] <robin_sz> so ... 5V on vcc?
[22:50:04] <alex_joni> * alex_joni looks
[22:50:19] <Jacky^> RD-RL are 1K, Vcc is 5V
[22:50:34] <robin_sz> so 5mA ... probably less
[22:50:34] <Jymmm> alex_joni http://www.kenrockwell.com/nikon/d70.htm
[22:51:53] <robin_sz> yeuw ... I just seen the freq graph ... fig 11
[22:52:04] <anonimasu> alex_joni: set your filter to off please
[22:52:17] <Jacky^> i'm looking it right now
[22:52:21] <robin_sz> yuk
[22:52:24] <alex_joni> what filter?
[22:52:54] <robin_sz> so .. those optos?
[22:53:00] <robin_sz> do you have a bin?
[22:53:15] <Jacky^> what's a bin ?
[22:53:16] <robin_sz> une poubelle?
[22:53:24] <Jacky^> :\
[22:53:31] <alex_joni> lol
[22:53:36] <Jacky^> * Jacky^ nods
[22:53:42] <Jacky^> :D
[22:54:00] <anonimasu> /msg nickserv set unfiltered on
[22:54:03] <robin_sz> they look a little slow ....
[22:54:20] <Jacky^> robin probably true..
[22:54:29] <Jacky^> my machine is slow too
[22:54:40] <robin_sz> try 100ohms resistor .. but check that the output transistor can go "low" enough when turned on to be a logic 0
[22:55:20] <Jacky^> 100 homs for RDa nd RL too ?
[22:55:29] <alex_joni> Jymmm: hmm, I like the Canon 350D Digital Rebel better
[22:55:39] <robin_sz> no .. not for Rd
[22:55:47] <Jacky^> ok
[22:55:55] <alex_joni> anonimasu: done
[22:56:00] <robin_sz> Rl nneds to be around 100R
[22:56:23] <robin_sz> for 10khz you need good 3rd and 5th harmonic to look "square"
[22:56:38] <robin_sz> so 30 and 50 khz need to be there ...
[22:57:54] <robin_sz> really, a 2530 or other modern opto might work better ...
[22:58:07] <robin_sz> they go to 0.5mhz or more
[22:58:10] <alex_joni> http://www.dpreview.com/reviews/CanonEOS350D/Images/NewFeatures/bge3.jpg
[22:59:50] <Jacky^> robin_sz: its seem ok at 10 khz now ..
[23:00:03] <robin_sz> I have to say, Ive not seen an opto that slow in a while ...
[23:00:19] <alex_joni> robin_sz: :P
[23:00:26] <alex_joni> * alex_joni send robin_sz a bag full of them
[23:00:27] <robin_sz> Jacky^: and the output of the opto, it goes down to 0.2V or so?
[23:00:27] <alex_joni> :D
[23:00:44] <Jacky^> robyn yes
[23:00:52] <Jacky^> it seem 1/5 of input
[23:01:28] <robin_sz> ok, if it pulls down to 0.2V you'll be OK ... if it only pulls down to 1V then ... you might hav had problems
[23:02:01] <Jacky^> it seem so .. around 1V
[23:02:08] <robin_sz> oh ... 1V?
[23:02:14] <robin_sz> hmmm ....
[23:02:16] <Jymmm> alex_joni: how come? (just curious)
[23:02:16] <Jacky^> yeah
[23:02:31] <alex_joni> Jymmm: how come what?
[23:02:37] <Jymmm> alex_joni the canon
[23:02:43] <robin_sz> hmmm ... a bit high .. maybe the 297 will not think it is low enough
[23:03:08] <alex_joni> a bit cheaper
[23:03:14] <alex_joni> and performs better (from the specs)
[23:03:16] <robin_sz> Jacky^: thats the trade off ... smaller resistor = faster, but also does not pull down so low ...
[23:03:24] <alex_joni> and it's got a battery pack :D
[23:03:28] <alex_joni> notsure about the nikon
[23:03:32] <Jymmm> alex_joni what performs better?
[23:03:46] <Jacky^> robin_sz: understood :(
[23:03:59] <robin_sz> try it and see!
[23:04:08] <Jacky^> i cannibalized these optos from a surplus board
[23:04:15] <robin_sz> right
[23:04:18] <robin_sz> might be OK
[23:04:18] <Jacky^> probably an old copier..
[23:04:34] <Jymmm> alex_joni: The BP in the Nikon works great, and lasts a LONG time.
[23:04:34] <alex_joni> Jymmm: the EOS than the Nikon
[23:04:36] <robin_sz> yo can always put a Scmitt trigger gate betwween them and the 297 right?
[23:04:49] <Jymmm> alex_joni: what specifically?
[23:04:51] <Jacky^> i think so..
[23:04:54] <robin_sz> Schmidt
[23:04:54] <alex_joni> fps
[23:05:19] <alex_joni> robin_sz: but an HC one at least
[23:05:25] <alex_joni> or ALS
[23:05:37] <robin_sz> why?
[23:05:54] <robin_sz> the gate is being driven by the opto ... not driving an opto
[23:05:54] <Jymmm> alex_joni Nikon does 3FPS,
[23:06:13] <robin_sz> yeah you need an ALS to drive an opto, agreed
[23:06:25] <LawrenceG> ok
[23:06:42] <alex_joni> I meant a fast schmidt trigger
[23:06:53] <robin_sz> but just to square up from the opto to the L297? shrug .
[23:06:56] <alex_joni> not some scrappy old schmidt trigger that can't keep up
[23:07:01] <robin_sz> well, most manage 10khz :)
[23:07:34] <robin_sz> which is what I find strange about that opto ...
[23:07:41] <robin_sz> how did they make it soooo sloooooow?
[23:08:02] <Jacky^> :)
[23:08:22] <Jacky^> np, i will buy some 6N ..
[23:08:47] <Jacky^> at least, this afternoon, i learned how to test it with a scope ;)
[23:08:47] <robin_sz> so ... now to try the same test from parallel porg
[23:09:20] <Jacky^> you mean to test pin2-8 ?
[23:09:38] <robin_sz> now connect it up to a PC
[23:09:42] <alex_joni> Jymmm: 8MP vs 6MP
[23:09:52] <robin_sz> and run some G0 moves at 10Khz
[23:10:00] <robin_sz> make sure it is still square and nice
[23:10:13] <alex_joni> Jymmm: CMOS vs CCD
[23:10:50] <Jacky^> robin :\ i've no idea how to run it at 10 khz ..
[23:11:10] <robin_sz> well, just run it at G0 speed .. thats as fast as it will ever go
[23:11:31] <alex_joni> Jacky^: use HAL
[23:11:42] <alex_joni> start a stepgen
[23:11:46] <alex_joni> and set the period
[23:11:48] <alex_joni> amplitude
[23:11:49] <alex_joni> etc
[23:11:49] <robin_sz> is he on EMC2?
[23:11:57] <alex_joni> and connect it to the pin you need
[23:11:57] <Jacky^> nope..
[23:12:02] <Jacky^> emc1
[23:12:05] <alex_joni> well.. he could be ;)
[23:12:10] <robin_sz> :)
[23:12:30] <robin_sz> is the interpolator fixed in emc2 now?
[23:13:08] <robin_sz> or did the fixes only happen in emc1?
[23:13:32] <alex_joni> both
[23:13:36] <robin_sz> nicey!
[23:19:35] <Jymmm> alex_joni: Um, dont let MP's fool you now.
[23:20:09] <alex_joni> :P
[23:20:12] <Jymmm> Higher MP doesn't always mean better.
[23:20:23] <alex_joni> I know ;)
[23:20:39] <alex_joni> D50 looks ok too
[23:20:44] <alex_joni> and it uses SD
[23:20:59] <Jymmm> alex_joni: Well, you said 8 vs 6, but canon sensor is 22.2x14.8, where Nikon is 23.7x15.6
[23:21:10] <robin_sz> istn there a D50S ... studio edition?
[23:21:24] <alex_joni> Jymmm: that means bigger lenses :D
[23:21:30] <alex_joni> now seriously
[23:21:39] <alex_joni> is there a batt pack for it?
[23:22:12] <Jymmm> alex_joni I can take 300 shots and never replace the battery yet.
[23:22:33] <Jymmm> I carry a spare, but never have to swap out.
[23:23:04] <Jymmm> Now, my Caona S10... well that's another story.
[23:23:21] <Jymmm> Canon
[23:27:46] <Jacky^> robin_sz: what about this: http://www.captain.at/rtai-fusion-parallel-port-interrupt.php
[23:28:11] <Jacky^> can be used to test ?
[23:29:13] <robin_sz> probably but not needed
[23:29:26] <robin_sz> what is worng with a G0 move in EMC?
[23:30:47] <Jacky^> how many time it give to look at the scope ?
[23:30:53] <Jacky^> few seconds ?
[23:31:00] <robin_sz> depends how long you make the move!
[23:31:12] <robin_sz> write 200 line gcode
[23:31:13] <Jacky^> withou connect the driver..
[23:31:17] <robin_sz> g0 X0
[23:31:24] <robin_sz> g0 X500
[23:31:41] <robin_sz> of course connect driver !
[23:31:49] <robin_sz> you need to see it driving the optos
[23:32:39] <Jacky^> understood
[23:35:36] <robin_sz> so ... just take the same readings like you did with the oscilator ... look t the input signal and the output signal of the optos
[23:35:48] <robin_sz> and use your scop probe on x10 too!
[23:36:23] <robin_sz> although at 10khz probably not an issue come to think of it
[23:41:42] <Jacky^> yeah..
[23:43:11] <alex_joni> Jymmm: so you own a D50?
[23:47:15] <alex_joni> will talk tomorrow about that
[23:47:16] <alex_joni> night guys
[23:47:20] <alex_joni> * alex_joni is gone
[23:50:27] <Jacky^> robin_sz: you know geckodrivers ?
[23:51:08] <Jacky^> they come with internal optocouplres ?
[23:54:43] <les> higuys!
[23:54:55] <Jacky^> hi les
[23:55:11] <les> talking with law dogs about patent claims
[23:55:38] <Jacky^> mmhh
[23:55:45] <les> But I was trying to rearrange the shop too
[23:55:46] <Jacky^> how much/year ?
[23:55:49] <les> need more room
[23:56:04] <les> how much?
[23:56:07] <les> me?
[23:56:17] <Jacky^> cost of patent
[23:56:47] <les> oh.... about $US 15,000 to start
[23:56:55] <les> but
[23:56:59] <Jacky^> ah.. its ok
[23:57:24] <les> patents are in US, EC, japan
[23:57:37] <les> all industrialized countries
[23:57:51] <Jacky^> mmm..
[23:57:57] <Jacky^> :)
[23:58:12] <les> including Italy!
[23:58:18] <Jacky^> hehe
[23:58:28] <Jacky^> good
[23:59:41] <les> We have divisions in Italy
[23:59:48] <les> ITW Italia