#emc | Logs for 2005-09-12

[00:00:17] <anna_emc> wowww
[00:01:00] <Jacky^> right yestarday whacthing tv, they was talking about the hig temperature of the planet ..
[00:01:42] <robin_sz> anna_emc: if you like kittens, that site explains how to make them grow in glass bottle so they stay small
[00:01:47] <Jacky^> and, many tropical animals are now appearing in south italy ..
[00:01:55] <les> Temperature is rising slowly
[00:01:58] <robin_sz> Jacky^: we have parrots in UK
[00:02:08] <les> wild?
[00:02:11] <robin_sz> sure
[00:02:13] <robin_sz> livid
[00:02:18] <les> hmm
[00:02:40] <robin_sz> seriously ... theres wood in Surrey that has a colony of over 2000
[00:02:52] <les> wow
[00:03:04] <robin_sz> appareently the local peregines find them very tasty :)
[00:03:14] <les> i'll bet
[00:03:40] <les> oh that bug keeps watching me...head swivels 180 degrees
[00:04:09] <Jacky^> robin_sz: we starting to see someting like that: http://it.geocities.com/entomologymelchionda/zanzara.html
[00:04:11] <les> 3 degrees of freedom I think
[00:04:13] <Jacky^> :\
[00:04:48] <robin_sz> http://news.bbc.co.uk/2/hi/uk_news/education/3869815.stm
[00:05:10] <robin_sz> les: its sizing you up for dinner ...
[00:05:20] <Jacky^> doh
[00:05:21] <anna_emc> bleachhhhh
[00:05:24] <robin_sz> actually thats the good news ...
[00:05:24] <les> eats birds...gawd
[00:05:39] <robin_sz> the bad news is it will mate with you first :)
[00:05:55] <Jacky^> :)
[00:06:11] <les> yeah I read that. Female mantis eats mate WHILE mating.
[00:06:48] <robin_sz> I new a girl like that once ...
[00:06:59] <les> I new several.
[00:07:02] <les> ahem.
[00:07:03] <robin_sz> anyway ...
[00:07:15] <robin_sz> today, was another county shoot
[00:07:25] <les> ?
[00:07:25] <robin_sz> or inter-county I should say ...
[00:07:37] <robin_sz> 40 shots at 25yds
[00:08:11] <robin_sz> anyway, out of the 12 in our county team, I had the highest score :)
[00:08:41] <les> I didn't doa thing today....should have gone out and done something like that
[00:08:52] <Jacky^> robin_sz: nice :)
[00:08:52] <robin_sz> 396 ex 400 :), goo dway to start the winter season
[00:08:55] <les> I just cleaned house.
[00:09:08] <robin_sz> but you still left the bugs in
[00:09:30] <les> yeah had the front door open.
[00:09:40] <robin_sz> dont worry, the chicken will eat it
[00:09:48] <les> sweeping out the dust
[00:09:54] <les> haha
[00:10:36] <robin_sz> I have here ... a spike from a "stinger" .. the thing police put in the road to deflate car tyres
[00:10:49] <Jacky^> les: can I give you website url to anna_emc ? :P
[00:11:06] <les> Tommorrow, I have to evaluate a "trapped torsional resonance" touch switch
[00:11:24] <robin_sz> very neat, Ti tube, 3mm dia, with hypodermic style sharpened point
[00:11:30] <robin_sz> hmmm
[00:11:48] <robin_sz> "trapped torsional resonance" ... is that the name the marketing department gave it?
[00:11:52] <les> I was asked to eveluate the technology
[00:12:00] <les> evaluate
[00:12:40] <les> heh
[00:12:56] <robin_sz> im still trying to think what it might mean
[00:13:04] <Jacky^> les: what your url ?
[00:13:15] <les> I should not say too much I guess..... now you are gonna hunt it up
[00:13:50] <les> ok now you have inside information.
[00:14:10] <les> this is on top of the air generator thing
[00:14:38] <les> on that, hordes of patent attourneys are desending upon me
[00:14:44] <robin_sz> well, I found a paper :)
[00:15:38] <robin_sz> wow, the Q values are high too ...
[00:15:54] <les> I am playing with that concept for some stuff
[00:16:02] <les> Qvery high in metals
[00:16:39] <robin_sz> yeah, seems higher in torsional modes than I might have expected ...
[00:16:51] <robin_sz> didnt even condier that before really
[00:17:39] <anna_emc> les compliment for your site!
[00:17:53] <Jacky^> :)
[00:17:54] <robin_sz> Q over 100,000 in aluminium ...
[00:18:01] <les> I think I know the paper you are looking at...out of U. texas....I have to meet that guy I think
[00:18:08] <robin_sz> yep
[00:18:11] <robin_sz> thats the one
[00:19:26] <les> Any way, many possible uses. I'll talk to them.
[00:19:28] <robin_sz> I suppose, its not vastly different from the modes in quartz crystals for oscillators I guess
[00:19:48] <les> yeah
[00:19:57] <robin_sz> interesting
[00:20:22] <les> I think they are labeling me as "mr acoustics"
[00:20:26] <robin_sz> heh
[00:20:36] <les> I don't want to be pigeonholed that way
[00:20:50] <les> I am an aerospace engineer
[00:21:07] <robin_sz> yeah yeah
[00:21:25] <les> ok, I was an audio r&d engineer a while
[00:21:54] <les> but by eduction I am supposed to do rocket science
[00:22:06] <les> education
[00:22:18] <robin_sz> the frequencies in there are quite high ... sound more liek an SAW filter with attitude than anything else ...
[00:22:42] <les> it is not unlike some SAW technology
[00:22:43] <robin_sz> now, a SAW filter with a Q of 100K or more .. that would be interesing
[00:23:47] <les> well 100K Q makes it a very good sensor....breath on it from a meter away and it would change a bunch
[00:24:18] <les> hence ther interest
[00:24:19] <robin_sz> I'm sure you will come up with some novel (and patentable) use for it :)
[00:24:36] <les> I am asked to do that.
[00:24:42] <les> It's a living!
[00:25:45] <robin_sz> maybe some sort of distance sensor?
[00:25:49] <les> where did anna and jacky go?
[00:25:56] <les> I bored them to death?
[00:26:05] <Jacky^> les: here
[00:26:07] <Jacky^> :)
[00:26:09] <les> haha
[00:26:11] <robin_sz> oh, those two? they will be in a dark corner
[00:26:17] <les> heh
[00:27:42] <robin_sz> anyway, bored now looking for a neat H bridge drive design
[00:28:08] <les> over 4 amp 30v?
[00:28:18] <les> i.e. not a power IC?
[00:28:22] <robin_sz> 5amp 60v ideally
[00:28:36] <robin_sz> sort of 4 IRF530 sort of size
[00:29:01] <anna_emc> les I'm here
[00:29:51] <les> ah both anna and jacky are back!
[00:30:03] <Jacky^> :P
[00:30:31] <les> I guess IRF530 is pretty standard
[00:30:46] <les> gecko?
[00:30:59] <robin_sz> sort of
[00:31:08] <robin_sz> but not the control part
[00:31:10] <robin_sz> just the amp
[00:31:15] <les> oh
[00:31:28] <robin_sz> the 200X will do the clever bits
[00:31:32] <les> well plenty of stuff out there I guess
[00:31:38] <robin_sz> and drive the amp with analogue
[00:31:45] <les> yeah
[00:31:48] <robin_sz> well, buggered if I can find it :)
[00:31:52] <jmk_away> +
[00:32:01] <les> makes me think of the chinese iron bit
[00:32:06] <robin_sz> yeah
[00:32:12] <les> oh, those are popping up all over
[00:32:21] <robin_sz> yeah?
[00:32:29] <les> let me dig up a link
[00:33:53] <les> http://cgi.ebay.com/4X8-CNC-Router-Table_W0QQitemZ7545412614QQcategoryZ57122QQrdZ1QQcmdZViewItem
[00:34:12] <robin_sz> looking
[00:34:24] <les> private auction?
[00:34:32] <les> 16 bids?
[00:34:41] <les> guy is a sleazy schill
[00:36:43] <anna_emc> I smoke last cigarette! go to sleep
[00:36:58] <les> goodnight anna
[00:37:14] <anna_emc> night all
[00:37:17] <jmk_away> jmk_away is now known as jmkasunich
[00:37:20] <robin_sz> ok, night from me too
[00:39:21] <paul_c> and back...
[00:42:49] <paul_c> OK... 4.27 is looking good to go.
[00:43:03] <jmkasunich> uploading now? or already on a mirror?
[00:43:17] <paul_c> uploading now.
[00:44:31] <paul_c> what is it, 16:25 over there ?
[00:44:40] <jmkasunich> 1925
[00:45:13] <paul_c> hrmm... wonder where that server is then...
[00:45:43] <jmkasunich> west coast probably, they're 3 hrs behind
[00:45:44] <paul_c> Check back at 03:00 your time..
[00:45:59] <jmkasunich> I'll check tomorrow ;-)
[00:47:38] <paul_c> darn, that Andy H. is getting to be a ....
[00:50:53] <bosone> hello everyone :P
[00:52:14] <bosone> Jacky^: are you here?
[00:52:23] <Jacky^> hi bosone
[00:52:52] <bosone> do you need a controller?
[00:53:26] <Jacky^> probably, yes
[00:53:47] <Jacky^> im tryng to hack some board
[00:54:11] <Jacky^> i'm interesting in servos driver
[00:54:25] <bosone> I made a sequence generator for L298 with ALTERA FPGA
[00:54:54] <Jacky^> coulde be nice :)
[00:55:04] <Jacky^> i've here an old olivetti board
[00:55:21] <Jacky^> i was talking with robin_sz about it
[00:55:37] <Jacky^> it seem have a good control on motors
[00:55:50] <Jacky^> tryng to understand how it work ..
[00:56:01] <bosone> with 297 - 298 ?
[00:56:31] <Jacky^> it has L296 near the power supply area
[00:56:44] <Jacky^> and, two L298
[00:57:03] <Jacky^> near , also have some lm339m
[00:57:21] <Jacky^> with a lot of diodes..
[00:57:31] <bosone> L296 is probably step down converter for +5v
[00:57:39] <Jacky^> yeah..
[00:58:27] <Jacky^> the board is also soubleface pcb
[00:58:39] <Jacky^> it is complex enough :\
[00:58:52] <Jacky^> hard to understand how it work ..
[00:59:11] <bosone> can you give to me a photo?
[00:59:21] <Jacky^> it has a keyboard on the other side
[00:59:36] <Jacky^> i cant take a photos now :(
[00:59:42] <Jacky^> just tomorrow ..
[01:00:25] <Jacky^> it looks like an old writing machine
[01:00:33] <bosone> ok, do you know FPGA's?
[01:00:38] <Jacky^> no idea
[01:01:11] <Jacky^> what is ? a microprocessor ?
[01:01:35] <bosone> no, is a reconfigurable hardware
[01:02:01] <Jacky^> ouch :\ never heard ..
[01:02:56] <jepler> l297/l298 is easy enough to understand. No need to involve an FPGA.
[01:03:08] <jepler> this is the board cradek uses: http://www.pminmo.com/l297-8/L297_8schematic.pdf
[01:03:11] <bosone> ok, now i go to smoke a sigar, at whot time you go to bed?
[01:03:28] <Jacky^> i'm smoking to :)
[01:03:35] <jepler> http://www.pminmo.com/l297-8/l297-8.htm
[01:03:39] <Jacky^> i'm here yet ;)
[01:04:23] <Jacky^> jepler: looking..
[01:05:58] <Jacky^> jepler: yeah
[01:06:06] <Jacky^> simple
[01:06:17] <Jacky^> when use 297-298
[01:06:31] <Jacky^> this case sem a bit more complicated
[01:07:06] <Jacky^> 2 servomotors, 2 l298, 2 lm339m
[01:07:55] <Jacky^> ok, so , l298 can be used also for dc motors ?
[01:08:18] <Jacky^> same circuit of stepper
[01:08:25] <Jacky^> :\
[01:08:27] <Jacky^> ?
[01:08:53] <bosone> 298 is a simle dual h-bridge
[01:09:22] <bosone> nothing else 8 transistor!
[01:09:42] <bosone> the key is 297
[01:10:03] <Jacky^> this board have not 297 :\
[01:10:14] <Jacky^> so.. what drive the 298s ?
[01:10:29] <bosone> the mcu or cpu
[01:11:00] <Jacky^> thats tha hard side
[01:11:33] <bosone> i think you can wire 298 direct to stepmod,
[01:11:45] <Jacky^> my cousin is entusisiast of this board ..
[01:13:24] <Jacky^> bosone: it seem to have a complex encoder too
[01:13:37] <bosone> in one altera epm7128 (about 7 euro) you can fit 3 of 297 whit chopper!
[01:13:52] <jepler> Jacky^: l298 just takes logic-level input
[01:13:53] <jepler> s
[01:15:06] <Jacky^> jepler: i believe..
[01:15:22] <bosone> whot do you mean complex encoder?
[01:15:37] <bosone> of motors?
[01:15:38] <Jacky^> 6 wired
[01:16:10] <Jacky^> where, 2 shoube be +-
[01:16:18] <Jacky^> one is probably common
[01:16:35] <Jacky^> another is a square wave for step
[01:16:47] <Jacky^> another, square wave for revolution
[01:17:01] <Jacky^> and latest seem to be a sinusoidal wave
[01:17:11] <bosone> are optics?
[01:17:38] <Jacky^> i not opened it, but i think not ..
[01:17:58] <Jacky^> do*
[01:18:50] <Jacky^> bosone: do you use servos for your applications ?
[01:19:30] <bosone> at moment no
[01:19:59] <bosone> for stepper i think isn't simple
[01:20:22] <Jacky^> what ?
[01:20:35] <bosone> freqmod is for encoder to, but..
[01:21:38] <Jacky^> ah.. right yestarday i was talking with robin_sz and paul_c about stepper dual shaft with encoder
[01:21:52] <Jacky^> should be very interesting to try
[01:22:07] <Jacky^> to see what happen
[01:22:09] <bosone> you must try, i think the PID isn't so simple to set
[01:22:25] <Jacky^> for stepper ?
[01:22:31] <Jacky^> i gnored them
[01:22:40] <Jacky^> i used only P
[01:22:53] <Jacky^> others to defaults
[01:23:09] <Jacky^> at least in 'my steppers' ..
[01:23:53] <bosone> the top is brushless with encoder
[01:23:58] <Jacky^> i get a lot of differnce changing wiring, instead
[01:24:14] <Jacky^> ah.. brush motor.. i know :)
[01:24:28] <Jacky^> too expensive for me
[01:25:05] <bosone> if you find it in the trash .....
[01:25:16] <Jacky^> bah
[01:25:19] <paul_c> jmkasunich: Still around ?
[01:25:32] <Jacky^> if i can run a good servo i'm happy
[01:26:00] <Jacky^> hi paul_c :)
[01:26:24] <paul_c> Jacky^: Thought you had gone to bed.
[01:26:42] <Jacky^> hehe, not yet
[01:27:13] <Jacky^> talking with a nice friend here :P
[01:27:57] <Jacky^> bosone: never seen some nice schematic for servos online ?
[01:28:26] <Jacky^> excluding vinvezov website..
[01:28:33] <Jacky^> vincenzov *
[01:28:42] <bosone> if i find something, i tell you
[01:29:00] <Jacky^> :)
[01:29:21] <Jacky^> it could be a great thing
[01:29:55] <bosone> if you like electronics, you must know FPGA's! is the revolution!
[01:30:07] <bosone> http://www.df.unipi.it/~flaminio/laboratori/pdf_files/IntroFPGA.pdf
[01:30:12] <Jacky^> sure, let me know
[01:30:23] <Jacky^> looking
[01:31:34] <bosone> we can have the opportunity to make an asic at home, simple as pic programming, but...
[01:33:51] <Jacky^> bosone: it looks nice, like nutchip idea :) but its something i cant understand yet :(
[01:34:24] <Jacky^> i cant understand the convenience
[01:34:57] <Jacky^> maybe re-usable ?
[01:35:32] <paul_c> http://www.theregister.co.uk/2005/09/09/bush_caption.jpg <snigger>
[01:36:07] <bosone> there are a great project site www.opencores.org
[01:36:55] <jmkasunich> paul_c: Yeah, stepped away for a bit, back now
[01:37:08] <Jacky^> paul_c: ba days for president ..
[01:37:16] <Jacky^> bad*
[01:38:34] <bosone> Jaky^:in one chip you can insert a pic mcu, usb port, and everything digital
[01:38:53] <Jacky^> bosone: nice, it sound like hi-tech, i like it
[01:39:03] <paul_c> http://www.google.co.uk/search?hl=en&ie=ISO-8859-1&q=failure&btnG=Google+Search&meta= .... Oh boy, oh hum....
[01:41:06] <bosone> Jacky^: yes, if you see recent hardware there are always reconfigurable logic like ALTERA, XILINX, LATTICE
[01:41:12] <jmkasunich> old hat... google spam (try "french military victories" and hit "I'm feeling lucky"
[01:41:41] <Jacky^> bosone: good thing
[01:41:46] <paul_c> jmkasunich: Just wondering how best to respond to the likes of Jon Elson & Andy H. with regards BDI builds..
[01:42:34] <jmkasunich> andy H seems to want you to regenerate a 700MB iso to change one option, that's just plain silly
[01:42:57] <Jacky^> paul_c: try to send a few trillion dollars in texas
[01:44:12] <paul_c> jmkasunich: The annoying thing... IF he had read the on screen help AND the warning at the root password screen, we wouldn't have all this debate.
[01:45:22] <jmkasunich> your most recent reply seems adequate to me
[01:45:23] <paul_c> How best to put "Read the flippin screen and pay attention." with out coming across as rude.
[01:46:01] <paul_c> with maybe... "You gets what you pay for."
[01:46:29] <Jacky^> politic is dirt everywhere.. no doubt
[01:47:50] <jmkasunich> * jmkasunich does not discuss politics (or religion) on IRC
[01:48:07] <jmkasunich> nothing to be gained from it, except aggravation
[01:48:15] <Jacky^> * Jacky^ agreed with jmkasunich
[01:49:00] <paul_c> * paul_c is >this< far from being banned from the CCED list...
[01:49:29] <jmkasunich> for discussing politics? or for baiting the doze users? ;-)
[01:49:33] <paul_c> seems they don't like my alt. tag line over there..
[01:49:46] <jmkasunich> * jmkasunich stopped reading CCED months ago, too much traffic
[01:50:05] <jmkasunich> what is the tag?
[01:50:18] <Jacky^> bosone: i'm interesting on learn how to program microprocessors
[01:50:38] <bosone> ok, i can help you
[01:50:54] <bosone> Jacky^: FPGA is more simple that you think, you can draw the logic schematic like eagle, and pc do the rest (routing and fitting).
[01:50:56] <paul_c> Proud to be unamerican | A war over oil is immoral, wrong, and illegal.
[01:51:02] <Jacky^> right yesterday i was sayng i've some nice ICs driver but i don't know how to drive it.
[01:51:29] <jmkasunich> * jmkasunich should not have asked
[01:51:39] <paul_c> ;)
[01:52:04] <Jacky^> bosone: it sound coool :P
[01:52:27] <paul_c> Jacky^: You need to look at the datasheets for that chip.
[01:52:51] <paul_c> there is some info on driving it...
[01:53:12] <Jacky^> paul_c: nopes
[01:53:21] <Jacky^> or
[01:53:30] <Jacky^> yes, there's some infos
[01:53:47] <Jacky^> but its a very complex sequence table :\
[01:53:55] <bosone> need more computational power for your old pc? http://www.gpgpu.org/
[01:54:36] <bosone> is usable for realtime?
[01:55:42] <bosone> i think is very interesting to use graphic card for speed up emc
[01:56:16] <Jacky^> bah..
[01:56:34] <Jacky^> really, i dont think emc need to speed up
[01:56:53] <bosone> i think to
[01:56:55] <Jacky^> i need to get better motors !
[01:56:57] <Jacky^> :D
[01:57:19] <Jacky^> an drivers too ..
[01:57:57] <Jacky^> bosone: I also like embedded system
[01:58:12] <bosone> i too
[01:58:24] <Jacky^> a nice thing could be to get emc running on a tiny pda :P
[01:58:46] <Jacky^> i've gpe linux installed on, but not so much time to try ..
[01:58:47] <bosone> mmm
[01:59:33] <Jacky^> its hard
[01:59:56] <Jacky^> hard life :)
[02:00:03] <paul_c> Jacky^: What IO is available on the PDA ?
[02:00:21] <Jacky^> paul_c: probably.. nothing
[02:00:23] <bosone> i think is'nt a right thing
[02:00:32] <Jacky^> just a pcmcia slot
[02:00:59] <Jacky^> BT is excluded, of course..
[02:01:12] <paul_c> That opens up the possiblity of plugging in a parport or 8255 IO card...
[02:01:16] <bosone> but realtime platform can be used on your pda?
[02:01:55] <Jacky^> paul_c: could be nice
[02:02:12] <paul_c> If there is a patch for the CPU, realtime is possible.
[02:02:40] <Jacky^> bosone: thinking.. why not ?
[02:02:50] <Jacky^> cpu 400 mhz
[02:03:20] <Jacky^> the problem is to hack them
[02:04:58] <bosone> beacouse is portable, and probably the cnc not.
[02:05:26] <bosone> is nice, but not indispensable
[02:06:00] <Jacky^> think, if you can use RT on a pda
[02:06:16] <Jacky^> you can drive also other than a cnc
[02:06:20] <Jacky^> everywhere
[02:06:44] <Jacky^> not bad at all, i think
[02:06:45] <Jacky^> :)
[02:06:49] <bosone> is more usefull view the machine status via remote X,
[02:07:09] <Jacky^> this its already possible
[02:07:12] <bosone> no, is nice RT on PDA
[02:07:16] <Jacky^> i can run ssh on my pda
[02:07:23] <Jacky^> as tcl
[02:07:28] <paul_c> no, no... Remote X either direct, or via VNC is evil...
[02:07:42] <paul_c> a waste of bandwidth.
[02:07:50] <Jacky^> paul_c: he probably mean only to see*
[02:08:04] <Jacky^> not do other ..
[02:08:12] <paul_c> EMC can run remote GUIs without using X or VNC
[02:08:31] <Jacky^> :D
[02:08:44] <bosone> yes? i'm intersting on it
[02:09:08] <bosone> there are a client
[02:09:17] <bosone> ?
[02:10:14] <paul_c> Yes.
[02:11:05] <paul_c> All the interfaces are "clients". Just need to set up a config to tell the system what & where.
[02:11:06] <bosone> ok, tomorrow i try something..
[02:11:18] <Jacky^> bosone: there are a lots of interesting things..
[02:11:48] <Jacky^> Jymmm is also working on some touchscreen panel, with remote gui, etc etc..
[02:12:00] <paul_c> * paul_c does a bit of testing with EMC on a box over there ------>
[02:12:12] <paul_c> and a GUI on *this box.
[02:12:28] <Jacky^> hehe
[02:13:17] <paul_c> Have even networked with an EMC running in SoCal
[02:14:21] <bosone> if i put the x server on an other machine, (whitout KDE!) , don't speed up emc?
[02:15:01] <jmkasunich> define "speed up" please? faster GUI response? faster machine movement?
[02:15:04] <paul_c> If you don't install X on the EMC box, it can run faster.
[02:15:14] <paul_c> Higher pulse rates.
[02:16:05] <bosone> whot is SoCal
[02:16:11] <bosone> ?
[02:16:27] <paul_c> South California
[02:16:37] <jmkasunich> USA ;-)
[02:16:42] <bosone> ahh
[02:17:05] <paul_c> like.. 9,000 miles from us in Europe.
[02:17:25] <bosone> ok, ok
[02:17:34] <Jacky^> 18k km ?
[02:17:38] <Jacky^> :D
[02:17:52] <jmkasunich> half a world away, in more ways than one
[02:17:54] <Jacky^> maybe more ..
[02:18:26] <Jacky^> G night guy, see tomorrow
[02:19:09] <Jacky^> *_*
[02:21:18] <paul_c> paul_c has changed the topic to: Welcome to the Enhanced Machine Control forum - Support and development of a linux based CNC control. | Home page www.linuxcnc.org | Regular Developer's meetings every Sunday between 14:00 & 18:00 GMT | General linux discussions and support the rest of the week. | BDI-4.27 released. New stuff added, some taken away.
[02:23:02] <bosone> Good night to all
[02:36:10] <paul_c> Right. I'm gone too.
[05:11:07] <Jymmm> hola A-L-P-H-A
[05:11:39] <A-L-P-H-A> hi
[05:28:03] <Jymmm> whats happein?
[05:41:16] <A-L-P-H-A> uh... nothing
[10:00:46] <Jacky^> morning
[16:41:45] <Jymmm> Wake up and smell the half caf, half decafe, non dairy creamer, cafe mocha latte, in a tall venti cup!
[16:43:01] <cradek> can I have coffee instead?
[16:43:05] <paul_c> Just a coffee for me thanks
[16:55:28] <Jymmm> =)
[17:11:50] <Jymmm> If I setup a headless box to be the controller, and then a laptop to control it, what do I need to do to start things from the laptop?
[17:14:59] <paul_c> plat/nonrealtime/bin/tkemc -ini foo.ini
[17:17:29] <Jymmm> so how would that start things on the headless box?
[17:20:25] <paul_c> that assumes the server side is already up and running.
[17:20:54] <Jymmm> No, just plugged in and turned on.
[17:22:34] <paul_c> riiiggghtt...... So you are wanting a magical command to issue to the headless box to start up stuff there ?
[17:22:51] <Jymmm> yep
[17:23:04] <Jymmm> that's what magical commands are for!
[17:24:57] <paul_c> You'll need to write an inet.d daemon to listen on port 50003 and start up EMC as soon as the client GUI attempts to connect.
[17:25:42] <Jymmm> I'll assume that's not easy todo
[17:26:49] <Jymmm> how would I start some remote X thing on the laptop?
[17:27:03] <Jymmm> (seems easier)
[19:09:29] <robin_sz> meep?
[19:22:12] <ValarQ> °°
[19:30:53] <Jacky^> evening
[20:29:32] <a-l-p-h-a> is there a functionality like google desktop search, but for linux?
[20:31:49] <jepler> I've never used google desktop search. There are full-text search programs, like swish and glimpse, which I find useful daily when searching a million-line software project.
[21:35:38] <Jacky^> anyone know some basic schematic of a servo driver that can work with step-direction in emc ?
[21:52:40] <Jacky^> hehe.. found: http://www.servotogo.com/
[21:52:50] <Jacky^> a little expensive.. :\
[22:26:43] <robin_sz> Jacky^: yeah, for a step/dire servo drive see www.geckodrive.com
[22:27:13] <robin_sz> servotogo are OK for real servo cards ... but as well as the STG card, you need amplifiers too.
[22:27:56] <Jacky^> robin and waht about the first on this page :http://www.jrkerr.com/boards.html
[22:28:07] <Jacky^> ydo you think can work in emc ?
[22:28:47] <Jacky^> this, should be low cost ..
[22:29:42] <robin_sz> with the step/direction convertor, yes ot would work with emc ...
[22:29:52] <robin_sz> is it cheaper than a Gecko servo drive?
[22:30:04] <robin_sz> lower power ...
[22:30:09] <robin_sz> soshould be
[22:30:15] <Jacky^> i prefer gecko, no doubt
[22:30:32] <robin_sz> is this one cheaper?
[22:32:02] <Jacky^> mmh
[22:32:08] <Jacky^> i'm not sure
[22:32:20] <Jacky^> i must ask..
[22:32:22] <robin_sz> ok $150 for the amp board
[22:33:05] <Jacky^> how much the gecko ?
[22:33:07] <robin_sz> I cant see if it will take step/dire directly
[22:33:30] <robin_sz> about the same I think .. 179 .. but is 20A, 70V
[22:34:12] <robin_sz> oh, $114
[22:34:18] <robin_sz> so the gecko is cheaper :)
[22:34:24] <Jacky^> you found it ?
[22:34:30] <Jacky^> :\
[22:35:01] <robin_sz> you'd have to use the G340 drive with EMC, not the G320, so $148
[22:35:24] <robin_sz> emc might struggle to make fast enough pulses for a G320 ...
[22:35:48] <robin_sz> with a good encoder and a decent servo, it might need up to 100Khz
[22:36:03] <robin_sz> a G340 would only need 10Khz as it has a pulse multiplier
[22:37:07] <robin_sz> at the end of the day for small, cheap machines, you have to hand it to Gecko ... they do good value for money
[22:37:29] <robin_sz> not the same as "real" servos, but not the same price either
[22:38:02] <robin_sz> you should look at Jon Elsons servo boards too
[22:39:01] <Jacky^> understood
[22:39:30] <Jacky^> i like how gecko work, but i dont like as it is maded
[22:39:47] <robin_sz> what dont you like about the construction?
[22:39:54] <Jacky^> what if an IC burn ?
[22:40:08] <Jacky^> i have no schematic..
[22:40:19] <Jacky^> i cannot repair it to myself
[22:40:38] <Jacky^> and probably not in italy
[22:41:03] <robin_sz> well, with respect, thats not sensible
[22:41:22] <robin_sz> do you have a schematic for your mobile phone?
[22:41:33] <Jacky^> nope
[22:41:44] <robin_sz> your watch?
[22:41:48] <Jacky^> for this reasin i use very little my cellphone :)
[22:41:56] <robin_sz> your laptop?
[22:42:05] <robin_sz> the video card in your PC?
[22:42:44] <robin_sz> anyway .... you know about the geck guarantee?
[22:43:01] <Jacky^> no idea
[22:43:05] <robin_sz> first time you break it, the repair is free
[22:43:54] <Jacky^> thats is good
[22:44:07] <Jacky^> at least..
[22:44:28] <robin_sz> and anyway, its is mostly SMD, unless you have hot air rework facility, you will have trouble repairing it anyway
[22:45:40] <Jacky^> this couldn be a big problem..
[22:46:13] <Jacky^> the biggest problem is dont having the schematic
[22:46:30] <Jacky^> i dont like to use something without understand how it work
[22:47:07] <Jacky^> and how can i modified (if is possible) ti get it working better
[22:47:19] <robin_sz> well, whatever ...
[22:47:34] <robin_sz> I think you will have to design one yourself from scratch then
[22:47:45] <Jacky^> and, i'm not a 'normal user' who buy a driver connect a motor and finished ..
[22:48:02] <Jacky^> i will stress my driver in all ways :)
[22:48:11] <robin_sz> seems unlikely
[22:48:58] <robin_sz> you need to decide what you want to do. build a machine ... write code or build drivers
[22:49:05] <robin_sz> any one is a big project
[22:49:06] <Jacky^> i i wasnt thinking in this way, i wasnt build anything from myself
[22:49:35] <Jacky^> i love linux just for this reason
[22:50:20] <Jacky^> but at the end, probably, i will end using geckodrivers
[22:50:52] <Jacky^> not 100 % happy
[22:51:05] <Jacky^> and not for the cost
[22:51:11] <robin_sz> well, use something else then
[22:51:23] <robin_sz> buy a baldor for �500
[22:51:53] <robin_sz> or Jon Elsons servo amps
[22:53:24] <Jacky^> ah.. today i received 30 6n137 i ordered 4 days ago :P
[22:53:46] <Jacky^> tomorrow i will try it on my board :))
[22:54:04] <robin_sz> I just boaught a servo amp on ebay ...:)
[22:54:13] <robin_sz> 12A/140V
[22:54:24] <robin_sz> 6A cont, 12A peak
[22:54:27] <Jacky^> could be nice.. to find it
[22:55:02] <Jacky^> latest time was a battle for a servo motor of 14 W in the US
[22:55:09] <Jacky^> :\
[22:55:52] <Jacky^> with the shipping, after .. is not so convenient for me
[22:56:44] <Jacky^> and.. anyway it dont solve the problem i was sayng
[22:57:20] <robin_sz> you still have not decided real servos or step/dire servos
[22:57:36] <robin_sz> until you decide that, you cannot proceed
[22:58:19] <Jacky^> to be honest, these drivers are not for me
[22:58:25] <Jacky^> for my cousin
[22:58:41] <robin_sz> for plasma?
[22:58:45] <Jacky^> yeah
[22:58:58] <robin_sz> how big the table?
[22:59:14] <Jacky^> i've no idea yet
[22:59:23] <robin_sz> well, that is step 1
[22:59:34] <robin_sz> do not even look at drivers until you know how big the table is
[22:59:40] <Jacky^> but around 2-3 mt
[22:59:49] <robin_sz> long, wide?
[22:59:54] <Jacky^> long
[22:59:59] <robin_sz> how wide?
[23:00:07] <Jacky^> i think 1 mt
[23:00:13] <Jacky^> not 100 % sure
[23:00:26] <robin_sz> do you know the standard sizes of sheet metal?
[23:00:40] <Jacky^> few mt, i think
[23:00:44] <robin_sz> ok
[23:00:51] <robin_sz> 2 x 1m
[23:00:54] <robin_sz> or
[23:00:59] <robin_sz> 1.25 x 2.5m
[23:01:03] <robin_sz> or 2m x 3m
[23:01:25] <robin_sz> choose one :)
[23:01:26] <Jacky^> no idea.. i can ask tomorrow
[23:01:42] <robin_sz> well, those are the sizes ...
[23:01:47] <Jacky^> assuming 2x3
[23:01:59] <robin_sz> do not assume
[23:02:01] <anna_emc> hello
[23:02:08] <robin_sz> ask your cousin what size he needs
[23:02:09] <anna_emc> ciao les
[23:02:16] <Jacky^> hi anna
[23:02:19] <robin_sz> 1.25m x 2.5 is doable with steppers
[23:02:28] <robin_sz> 2m x 3m is servos really
[23:03:03] <Jacky^> he dont like steppers.. i'm sure
[23:03:32] <robin_sz> well, he probably has no understanding
[23:04:24] <robin_sz> servos are better usually, but cost a lot more
[23:04:45] <robin_sz> in many cases steppers are fine, sometimes better
[23:04:50] <Jacky^> I know ..
[23:05:20] <robin_sz> for real servos, budget 1000 eur / axis
[23:05:29] <robin_sz> maybe 1500
[23:07:18] <robin_sz> servo card (800 eur) drive amp + motor + encoder
[23:07:31] <Jacky^> he made things like these: http://www.raccordifasano.com/04.htm
[23:07:56] <Jacky^> use plasma tu cut steel
[23:08:00] <Jacky^> to*
[23:08:24] <robin_sz> and he wants to cut the flanges and holes with plasma?
[23:08:25] <Jacky^> yes
[23:08:36] <robin_sz> well, I can save you a lot of time ...
[23:08:49] <robin_sz> dont bother ...
[23:08:50] <Jacky^> he cant ?
[23:09:00] <robin_sz> plasma is terrible for small holes
[23:09:08] <robin_sz> liek 8mm in 6mm steel
[23:09:14] <robin_sz> forget it
[23:09:35] <Jacky^> no.. i think his flanges are at least 10 cm of diameter
[23:09:41] <Jacky^> and more..
[23:09:51] <robin_sz> yes ... but the holes in the flanges
[23:09:59] <robin_sz> the 6mm or 8mm holes
[23:10:03] <Jacky^> oh..yeah
[23:10:17] <robin_sz> cheaper to have them laser cut to be honest
[23:10:40] <Jacky^> i dont think he can afford it
[23:11:05] <Jacky^> probably, its just an 'hobby' ..
[23:11:07] <robin_sz> I said it would be cheaper
[23:11:27] <Jacky^> oh..
[23:11:43] <robin_sz> you know I laser cut steel parts for people?
[23:11:45] <Jacky^> probably
[23:11:54] <robin_sz> say, 6mm steel
[23:12:05] <robin_sz> 100mm dia, 70mm hole
[23:12:14] <robin_sz> say, 8 6mm holes for bolts
[23:12:27] <robin_sz> ... guess .. 1.5 eur?
[23:12:41] <Jacky^> :)
[23:12:55] <Jacky^> cool
[23:13:05] <robin_sz> roughly 2.2 x cost of the metal ... at most commercial laser cutting places
[23:14:12] <Jacky^> nice
[23:14:51] <Jacky^> i've never seen what exactly hes doing yet
[23:15:01] <Jacky^> bat he talked to me about flanges
[23:15:14] <Jacky^> but
[23:15:34] <robin_sz> well, just make sure you know what plasma is capable of and how cheap it can be to have parts laser cut
[23:15:54] <robin_sz> if you appear to be naiive, a laser cutting place might try and charge big $$$
[23:16:22] <robin_sz> but if yoyu look like this is a test order and the real contract is for 100 parts ... they usually charge cheap
[23:16:23] <Jacky^> yeah
[23:16:32] <robin_sz> and if you supply DXF file that helps too
[23:17:24] <Jacky^> understood
[23:18:25] <Jacky^> anyway, coming back for a second to the old discussion
[23:18:46] <Jacky^> it seem there are no many chances for servo drivers..
[23:19:20] <Jacky^> other than commercial products, i mean ..
[23:20:32] <Jacky^> i'm googling and re-googling :\
[23:20:41] <anna_emc> ?
[23:20:53] <Jacky^> anna_emc: eh ?
[23:21:00] <anna_emc> che significa?
[23:21:07] <Jacky^> googlando ?
[23:21:12] <anna_emc> cercavi
[23:21:16] <anna_emc> e ricercavi'
[23:21:21] <Jacky^> sure
[23:23:30] <robin_sz> well, I have not seen many servo amp designs yet .. but maybe from manufacturers application notes for power mosfets
[23:24:15] <Jacky^> yeah, im too ..
[23:24:35] <Jacky^> it seem not enough for a real use with emc
[23:25:33] <robin_sz> well, you first need a STG or Vital motion card ...
[23:25:44] <robin_sz> but you cannot buy them
[23:25:59] <robin_sz> becuase they dont have schematic
[23:26:22] <robin_sz> so, I guess you will have to make your own motion card first ...
[23:26:42] <Jacky^> the hard side seem to be the logic
[23:26:54] <robin_sz> I think Imperator is making one, with CPLD, perhaps you can help him to do that
[23:27:13] <Jacky^> i will try to ask :)
[23:28:03] <Jacky^> bosone: you around ?
[23:46:18] <robin_sz> dude!
[23:46:23] <les> hi
[23:46:33] <anna_emc> les ciao
[23:46:35] <anna_emc> hi
[23:46:40] <les> boring day reading patent aps
[23:46:51] <les> hi anna.
[23:47:17] <les> you know, I caught that big bug and put it in a terrarium.
[23:47:28] <robin_sz> is it happy?
[23:47:29] <les> today I fed it a grasshopper.
[23:47:40] <les> It was hungry!
[23:47:45] <robin_sz> its happy :)
[23:48:03] <les> I think I have been out in the woods too long?
[23:48:53] <robin_sz> that or too much moonshine
[23:48:59] <les> heh
[23:49:20] <robin_sz> a friend of mine went to Masirah island (sp?) for work for two years
[23:49:30] <robin_sz> near Dubai I think
[23:49:33] <les> where is that?
[23:49:36] <les> ah
[23:49:47] <robin_sz> short wave tx station
[23:49:58] <robin_sz> for amusement they had a big glass tank
[23:50:08] <robin_sz> into which went scorpions
[23:50:15] <robin_sz> BIG spiders
[23:50:16] <robin_sz> etc
[23:50:35] <robin_sz> better than telly :)
[23:51:00] <les> I was wild watching that thing grab the grasshopper.
[23:51:27] <robin_sz> quick huh?
[23:51:29] <les> Grabbed it with those giant claws and chewed it's head right off
[23:52:05] <robin_sz> I wonder how many they eat a day?
[23:52:20] <les> I was wondering too
[23:52:49] <les> it is back in the "praying position "waiting for more prey
[23:52:49] <robin_sz> trouble when you introduce a foriegn bug
[23:52:59] <robin_sz> it usually screws some small part of the ecosystem
[23:53:20] <les> from my reading this one has not been bad
[23:53:36] <les> eats good honeybees and hummingbirds though
[23:53:54] <robin_sz> how handy
[23:53:56] <les> but not bad like kudzu or something
[23:54:03] <robin_sz> lizard?
[23:54:24] <les> no, an oriental plant...a vine
[23:54:32] <robin_sz> ahh
[23:54:36] <les> it chokes things out
[23:54:42] <robin_sz> we might have that
[23:54:48] <les> grows half a meter a day
[23:54:55] <robin_sz> red/green hollow stalks
[23:55:02] <robin_sz> about 3/4 inch thinck?
[23:55:22] <les> I think some linux program is named kudzu...because red hat is near here
[23:55:35] <les> i'll get a picture
[23:55:45] <robin_sz> its the hardware detection tool I think
[23:56:26] <robin_sz> ahhm have pic
[23:56:37] <robin_sz> not what we have ...
[23:56:43] <les> http://www.jjanthony.com/kudzu/
[23:57:08] <les> it will cover your house or car!
[23:59:13] <robin_sz> now
[23:59:25] <robin_sz> if ever there was a need for a specific herbicide ...
[23:59:32] <robin_sz> you'd make a fortune!