#linuxcnc | Logs for 2013-10-30

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[02:52:33] <_DJ_> moin
[04:17:55] <Loetmichel> soo... modified my CNC router from vertical to horizontal to mend a few sdub plugs (to small)... how to change the coordinate system in linuxCNC? -> -> http://www.cyrom.org/palbum/main.php?g2_itemId=14483 -> http://www.cyrom.org/palbum/main.php?g2_itemId=14486
[04:18:14] <Loetmichel> ... preferably temprotaily
[04:18:25] <Loetmichel> temporarily
[04:23:46] <archivist> copy your ini and hal so you can edit edit them separately
[04:26:34] <Loetmichel> wasnt there a gcode for that?
[04:27:55] <archivist> I never used the plane shifting gcode yet :)
[04:29:17] <archivist> g17 g18 g19
[04:31:43] <Loetmichel> hmm... and which one is to flip a contour in xy to yz?
[04:32:44] <archivist> experiment in air
[05:57:05] <archivist> hmm direct drive rotary http://www.astrosurf.com/cavadore/technical/Directdrives/
[06:18:28] <awallin> archivist: nice! a few of those DIY builds have been around, and one or two commercial
[06:18:41] <awallin> is the encoder DIY, or a bought renishaw?
[06:21:48] <awallin> http://www.youtube.com/watch?v=bKPenUtjjJk
[06:22:03] <awallin> the small versions of those 2-axis mounts start at about 5-6keur I think
[06:41:44] <archivist> awallin, I think it looks renishaw
[06:42:10] <awallin> those aren't exactly cheap.. at least as new
[06:42:41] <awallin> I think they have quite high counts/rev, but then they have analog interpolation within one count iirc
[06:43:18] <archivist> what I dont know is how they deal with the disjoint of the tape that gets stuck on the mount
[06:50:21] <awallin> I think the magnetic strip is delivered as a ring, complete from renishaw
[06:50:35] <awallin> a cheap DIY solution would ofcourse use magnetic tape...
[06:51:44] <archivist> I think renishaw did have a tape version, cannot find it at the moment
[06:55:00] <archivist> hmm might have to go and see them at a local ish show in a couple of weeks
[07:04:39] <archivist> awallin, I wonder if we could take one of the methods in theodolites and apply it, the old microptic optical system looked at both sides of the scale at the same time
[07:05:11] <awallin> do you have a link for that?
[07:06:42] <awallin> at some point we brainstormed this, and if you could read the bit-pattern on a DVD or a blu-ray disc then you could get 1M counts/rev or more
[07:06:51] <awallin> not sure how to get two counts in quadrature
[07:12:32] <PetefromTn> Mornin' folks!!
[07:12:39] <archivist> may have to scan a page, I thought I had scanned the optical part somewhere but cannot find it
[07:19:01] <archivist> awallin, I think this is another companies copy of the method, they call it double reading, http://www.collection.archivist.info/archive/manuals/IM209_Cooke_Troughton_Simms/page0003.jpeg
[07:20:11] <archivist> basicly averaging out and eccentricity
[07:20:16] <archivist> any
[08:19:14] <MacGalempsy> morning.
[08:19:35] <MacGalempsy> archivist: you have any leads on some old rockwell automation software?
[08:19:56] <archivist> like what
[08:20:18] <MacGalempsy> its called ultra master for ultra series 100 digital drives
[08:20:57] <archivist> no
[08:20:57] <MacGalempsy> i found a reference to the software on the wayback machine. named MASTERDU v1.60
[08:22:01] <archivist> I dont have much http://www.collection.archivist.info/searchv13.php?searchstr=rockwell
[08:24:34] <Jymmm> MacGalempsy: You will have to sign-up to download the help file (zip) in this forum, but the download link for the Ultra_Master software is valid http://www.plctalk.net/qanda/showthread.php?t=29763
[08:26:21] <Jymmm> Could be a virus for all I know =)
[08:30:25] <Jymmm> Or download the HELP file from here without signing up: http://www.plcs.net/downloads/index.php?action=downloadfile&filename=ultra_master_host.zip&directory=Other_PLC_Brands&PHPSESSID=jwtihhuy&PHPSESSID=jwtihhuy
[08:36:16] <MacGalempsy> thanks. now I need to figure out how to get a computer able to run it
[08:37:18] <Jymmm> the HELP file is valid too.
[08:37:43] <MacGalempsy> there are instructions in the manual, but now I need to figure out if my wifes windows xp machine will run it
[08:38:15] <Jymmm> So, gonna fuck up the wife's machine huh?
[08:38:55] <MacGalempsy> heh. hopefully not
[08:39:10] <MacGalempsy> it comes down to one function I cannot figure out
[08:39:46] <Jymmm> Just grab a spare hdd, install XP on it, and then you have it for whenever.
[08:39:53] <MacGalempsy> so if the software will data dump like it claims, then all I got to do is get to wiring and then its on to programming
[08:39:58] <PetefromTn> Yup that function is NEVER mess with the wife's computer LOL.
[08:40:36] <MacGalempsy> well, it is an old laptop. I hooked her up with a new alienware desktop
[08:41:11] <PetefromTn> Ooh then carry on....Can I have an Alienware Desktop man?
[08:41:13] <Jymmm> Hours installing XP on a hdd > DONT FUCK UP THE WIFE'S MACHINE, PERIOD, UNDER NO CIRCUMSTANCES, EVEN IF YOU BOUGHT HER 20 MACHINES
[08:42:02] <PetefromTn> Actually looking for a decent cheap desktop right now as my current design computer in the office has taken ill.. sigh.
[08:42:19] <Jymmm> MacGalempsy: She's gonna have some "precious" photos, memories, or something... DONT DO IT, You've been warned!!!
[08:43:03] <Jymmm> MacGalempsy: I've done IT for 20+ years, I'm telling ya...
[08:43:17] <Jymmm> MacGalempsy: DONT FUCK WITH IT =)
[08:44:48] <Jymmm> relicate her hdd, and work off that. At least you're SEMI-safe =)
[08:45:40] <MacGalempsy> hah it worked
[08:46:15] <Jymmm> the virus?
[08:46:17] <PetefromTn> Agreed...there is ALWAYS a ton of pics and files on there you forget about and then once its wiped it is GONE FOREVER!! I know I have a laptop in my desk upstairs that has a ton of stuff but the laptop died and I have not gotten around the removing the hard drive and copying it onto some other media.
[08:46:56] <MacGalempsy> its not like that. she was using this one that her cousin gave up to type papers. she migrated to the new pc and uses this one to take exams because there is some software for testing
[08:47:39] <Jymmm> MacGalempsy: So now it's infected with a virus and she cant take those exams???
[08:47:43] <MacGalempsy> this is perfect. I can go to bed now and get up and run the spindle diagnostics.
[08:47:47] <MacGalempsy> there is no virus
[08:47:54] <Jymmm> Uh Huh
[08:48:16] <Jymmm> Did you virus scan the download?
[08:48:52] <MacGalempsy> nope, but it was already infected
[08:49:05] <Jymmm> You know, the one from the mega virus download site you got it from?
[08:50:10] <MacGalempsy> it made it through microsoft security essentials
[08:50:25] <Jymmm> HAHAHAHAHAHAHAHAHAHAHAHAHA
[08:50:28] <MacGalempsy> so im sure its not going to be a problem. ciao
[08:51:07] <Jymmm> archivist: Did you grab those files at least?
[09:09:51] <archivist> Jymmm, no
[09:10:18] <Jymmm> archivist: You dont archive that stuff?
[09:10:48] <archivist> I tend to stick to the dead tree stuff I have
[09:10:55] <Jymmm> ah
[09:11:19] <archivist> that being a big enough problem
[09:11:26] <Jymmm> heh
[09:11:36] <archivist> also a bunch of microfiche
[09:11:47] <Jymmm> ewwwwwww
[09:12:31] <archivist> experimenting with camera scan method for them http://www.collection.archivist.info/archive/DJCPD/PD/2013/2013_10_22_PM852/IMG_1680.JPG
[09:13:35] <Jymmm> Whats the biggest issue you are having with that?
[09:15:33] <archivist> camera shutter life and discomfort adjust to middle, focus fiche reader, look through camera focus maybe take pic
[09:16:39] <awallin> archivist: u sure that's worth archiving? :)
[09:16:41] <archivist> that fiche example nearly 40 images and 9 minutes work
[09:16:50] <Jymmm> archivist: Maybe consider looking at what they are doing now for scanning books using smartphones.
[09:17:05] <Jymmm> at least might give you some ideas
[09:17:20] <archivist> awallin, yes, I got a request from someone at a museum
[09:17:39] <archivist> Jymmm, camera phones are crap
[09:17:53] <Jymmm> I know, but I mean the methods
[09:18:38] <archivist> fiche is not a book though
[09:19:12] <skunkworks> awallin, did you ever get back to your reprap?
[09:20:09] <awallin> skunkworks: nope... to much other things to do.. :( although I'm still not entirely sure what a 3D printer is good for other than "wow" toys
[09:20:29] <Jymmm> Fully automatic microfiche digitisation solution http://www.youtube.com/watch?v=g5uiMLT2VwI
[09:22:11] <archivist> Jymmm, does it deal with multiple docs on a fiche with differing sizes of image (I have to reboot firefox to see vids)
[09:23:20] <Jymmm> archivist: It does a FULL fiche image, then software does the rest
[09:23:56] <Jymmm> archivist: reboot later
[09:25:58] <archivist> commercial ...on my earnings !
[12:12:10] <Loetmichel> well, done it... sounding REALLY awful, not very safe, but works, the "horizontal mill conversion"... -> http://www.youtube.com/watch?v=FGNbgkg9O2Y
[12:15:02] <PetefromTn> Loetmichel: Nice man, I was expecting a HUGE OLD Horizontal mill converted to CNC but that seems to be some kinda router with a horiz head. Nice work and it appears to be doing the job LOL...
[12:15:33] <Loetmichel> before: http://www.cyrom.org/palbum/main.php?g2_itemId=14483
[12:15:46] <Loetmichel> after "conversion" -> http://www.cyrom.org/palbum/main.php?g2_itemId=14486
[12:17:15] <PetefromTn> That's one way to get those longer Z height ops done huh...
[12:19:43] <Loetmichel> PetefromTn: hat 10 of these housings made of 1mm zinced steel... all with wrong port/key/Led holes
[12:20:01] <Loetmichel> it was faster to desing the conversion than to file the 10 housings by hand
[12:20:19] <PetefromTn> sweet..
[12:21:02] <Loetmichel> made the prototype, send it to the customer... order for 40 pcs followed...
[12:22:07] <Loetmichel> we ordered the housings, a day later the customer called: "can we have a DVI out instead of one of the (usb) Subd9? and some leds and a headset plug would be nice!"
[12:22:32] <Loetmichel> ... *grumble* "can do, will be a bit expensive, though..."
[12:23:03] <t12> is milling becoming standard for panels like that
[12:23:08] <t12> or is punch still the main way
[12:23:16] <t12> or something else?
[12:23:38] <Loetmichel> that is a tempest-proof 24" thin clinet by the way... -> http://www.cyrom.org/palbum/main.php?g2_itemId=14412
[12:24:17] <archivist> tempest yes but NSA !
[12:24:28] <t12> hah
[12:24:42] <Loetmichel> t12: our "sheet metal guy" i.e. the company that makes our housings uses a trumpf CNC punch (and a trumpf cnc brake press)
[12:24:56] <Loetmichel> nsa also
[12:25:12] <t12> is that actually intended for high security use
[12:25:16] <Loetmichel> thats the kind of guys who orders stuff from us ;-)
[12:25:16] <t12> or is it someone just messing around
[12:25:19] <t12> hahah
[12:25:56] <Loetmichel> t12: we make shielded (military) IT equipment
[12:26:18] <jthornton> Loetmichel, what did you figure out for the coordinate system?
[12:26:29] <t12> eventually someone will adpot line encodings that are difficult to snoop on
[12:26:36] <Loetmichel> [18:03] <Loetmichel> texteditor... s/Z/Q; s/Y/Z; s/X/Y; s/Q/X ...
[12:26:39] <t12> theres a bunch of ip floating around for preventing it for ics
[12:26:47] <t12> loetmichel: neet business
[12:26:58] <t12> do you test emissions ?
[12:27:30] <Loetmichel> yes, we have two neasurement chambers. one for Sdip 27 level * and one for german Zone *
[12:28:09] <Loetmichel> jthornton: seen?
[12:29:12] <jthornton> yes, you did a search and replace on the G code file?
[12:29:57] <Loetmichel> right
[12:30:56] <Loetmichel> had to flip the Z- to x+ btw, was a bit mor action thatn just the three, five s&r iirc
[12:32:12] <Loetmichel> so to be correct i made: s/Z/Q; s/Y/Z; s/X/Y; s/Q-/X S/Q/X- ... four search and replace sould be enough i see now ;-)
[12:32:38] <Loetmichel> ... and one should not forget to check "case sensitive" or else the comments look a bit funny afterwards ;-)
[12:35:22] <jthornton> lol so true with global replace
[12:42:12] <Loetmichel> t12: http://cordsen.com/index.php/tempest/tempest-level-a/thin-client/17-tempest/tempest-level-a/thin-client-a/320-ats-2425t
[12:42:30] <Loetmichel> its dreived from our "normal" level A 24" monitor
[12:42:55] <Loetmichel> http://cordsen.com/index.php/tempest/tempest-level-a/monitor/18-tempest/tempest-level-a/monitor-a/45
[12:43:08] <Loetmichel> ... with a builtin wyse thin client
[12:46:27] <tjtr33> i need to move something as quickly as pocketbook allows. Mass about 4.5kg.
[12:46:28] <tjtr33> From hard stop to hard stop. Would acceleration of electric servo or pneumatic be more cost effective?
[12:48:13] <tjtr33> top speed isnt important. moving away NOW and returning very soon _is_ important
[12:48:25] <CaptHindsight> aren't pneumatics typically less expensive
[12:48:59] <Loetmichel> tjb1: every time the same distance?
[12:49:04] <tjtr33> typically, but are they able to produce high acc on such a mass?
[12:49:09] <Loetmichel> yes -> pneumatic ram
[12:49:27] <CaptHindsight> how far is the travel?
[12:49:27] <tjtr33> Loetmichel, yes same distance, nit even precise retract, just precise return :)
[12:49:39] <Loetmichel> with high diameter tubes and probably a local "compressed air accumulator"
[12:49:41] <tjtr33> 12mm to 30mm
[12:49:53] <CaptHindsight> pneumatic
[12:50:06] <tjtr33> ok, i think i have some 100mm dia short stroke Festo
[12:50:10] <tjtr33> thx all :)))
[12:50:13] <Loetmichel> np
[12:50:20] <CaptHindsight> have fun cobbling!
[12:50:37] <tjtr33> CaptHindsight, i got a scuba tank accumulator too (also Festo )
[12:51:03] <tjtr33> where did i put that 12 bar compressor :)
[12:52:38] <CaptHindsight> if you wanted to control the accel and decel or position then linear servo
[12:54:21] <IchGuckLive> hi all B)
[12:54:26] <tjtr33> i may need a soft return to hard stop, some air-pot, but 1st thing is to see it go whack whack w/o tearing up the shop
[12:57:36] <Loetmichel> tjtr33: there are pneuimatic rams with chokes inside a few mm before the end points
[12:58:10] <Loetmichel> so it moves REALLY fast until it reaches the ends, then it brakes ;-)
[12:58:44] <IchGuckLive> i use a axis trigger befor the hardend
[12:58:57] <IchGuckLive> a relay breaks of the poewer for the driver
[13:08:16] <tjtr33> Loetmichel, thx, we call then dash pots or air pots ( like potentiometer ) good idea Thanks
[13:11:21] <Loetmichel> tjtr33: no, there are pneumatic rams with a big hole about 10mm from the end and from there INSIDE the ram a small hole to the end
[13:12:11] <Loetmichel> so the ram can move fast until the plunger hits the big hole, then the air above it hast to go through tha small hole-> decellerating the ram
[13:12:27] <tjtr33> right
[13:13:17] <tjtr33> the speed qat that point is controlled by a thunb screw on a needle valve, we call that a dash-pot, same idea, flow restricted at end of stroke
[14:16:44] <andypugh> Anyone looking for DC servos?
[14:17:26] <andypugh> http://www.ebay.co.uk/itm/3-DC-servo-motors-new-and-unused-1-8Nm-cnc-mill-lathe-mach-3-SEM-110v-/400595739235
[14:18:38] <archivist> looking hmm
[14:19:35] <IchGuckLive> but no adaptiv for the encoder
[14:19:59] <IchGuckLive> and seams that standard gear also does not fit the shaft and diameter
[14:20:16] <IchGuckLive> so lots of turning bevor cnc turn
[14:20:19] <IchGuckLive> O.O
[14:20:23] <awallin> for 2 GBP I could get them :) but we'll see in 4 days..
[14:20:47] <archivist> I wonder where Steyning is :)
[14:20:55] <archivist> cannot afford though
[14:21:02] <IchGuckLive> im off bye todays corn harvest has been 820Tons on 4 tractors not bad
[14:21:40] <andypugh> Steyning is near Washington.
[14:22:22] <andypugh> (Not far from Brighton, where I will be next weekend)
[14:22:24] <awallin> is it code-speak for stonehenge
[14:22:56] <archivist> I was thinking the other Washington tyne and wear
[14:23:47] <andypugh> Ah, yes, I forgot that there was another one.
[14:25:54] <archivist> andypugh, while looking for angular accuracy in rotaries today http://www.astrosurf.com/cavadore/technical/Directdrives/
[14:29:06] <andypugh> Almost certainly the way to go, and I have seen direct-drive motors for CNC axes, but they are not cheap.
[14:29:34] <archivist> LG washing machine motor methinks
[14:29:43] <andypugh> Nor are the Renishaw Resolute encoders (though they are cheaper than you might guess, if you guess high)
[14:30:20] <andypugh> The problem with the washing machine motor is also that I lose the ability to tilt the rotary
[14:30:43] <archivist> tis a little large :)
[14:30:50] <andypugh> Plus, with an encoder it is probably possible to go to belt drive
[14:30:53] <CaptHindsight> even on spin cycle?
[14:31:23] <archivist> I looked for anything on belt drive accuracy and came up blank
[14:31:46] <andypugh> It doesn't matter.
[14:31:53] <archivist> sure it does
[14:32:13] <andypugh> Not if you have a super-high resolution encoder on the axis
[14:32:25] <archivist> well mebe in that case
[14:32:35] <CaptHindsight> some of the Newport rotary stages use a belt drive 2:1 reduction off the motor before the 90:1 worm
[14:33:12] <CaptHindsight> ~0.001 deg accuracy
[14:33:29] <archivist> physical size has been one of my recurring problems with swinging stuff
[14:44:02] <archivist> innerestin http://www.optoresolver.com/help/tutorials/resolver_v_encoder.htm
[14:46:55] <jdh> we use a lot of Parker/Compumotor stuff. If you order the same servo system with a resolver instead of an encoder, it will be rated at slightly higher power.
[14:47:10] <andypugh> I am not sure I agree about resolvers being less accurate
[14:48:00] <andypugh> Given that you can time-average the Resolver signal. Of course you can time-average the encoder too, but it's pointless)
[14:48:26] <andypugh> jdh: Probably better heat tolerance?
[14:48:51] <jdh> perhaps. Never came up with a definitive reason.
[14:49:09] <archivist> I just found a site claiming high accuracy and it had 5 arc minutes for a resolver
[14:49:18] <andypugh> I have become a real fan of resolvers.
[14:49:30] <jdh> given a choice, I'd pick resolvers
[14:49:48] <andypugh> I am even planning to pull the encoder off of a motor and fit a resolver :-)
[14:50:04] <archivist> I am on the fence
[14:50:59] <jdh> sounds highly uncomfortable.
[14:51:00] <andypugh> It's harder to make your own resolvers, though.
[14:51:33] <andypugh> I do have an idea for a resolver-like thing though. SMT inductors and a cam...
[14:51:58] <jdh> that sounds like an analog encoder
[14:52:00] <archivist> the centering mentioned for optical is sort of solved in microptic theodolites by having two images from both sides merged
[14:52:09] <CaptHindsight> jdh: more friction on the encoders than the resolvers? I never noticed the difference in the spec
[14:52:23] <CaptHindsight> jdh: what size servos from parker?
[14:52:36] <jdh> shoudl be no friction for encoders, and less inertia
[14:53:03] <jdh> don't recall the size, but they were smallish.
[14:53:11] <jdh> and yellow!
[14:53:22] <archivist> or newell system with balls around the outer bit like the pins that skunkworks has on the K&T
[14:53:40] <CaptHindsight> we use lots of the size 23 yellow and black ones :)
[14:53:58] <CaptHindsight> all with encoders
[14:54:18] <jdh> these are 23 size, I was thinking watts
[14:54:41] <jdh> gemini drives
[14:55:00] <CaptHindsight> yeah, the same
[14:56:40] <CaptHindsight> they use Remco RCM15 encoders
[14:57:13] <CaptHindsight> http://www.optoresolver.com/resume/Designs/Renco_RCM15.pdf
[15:01:43] <jdh> http://www.compumotor.com/literature/pg187_sm_series.htm
[15:03:49] <jdh> same SM233b, 1.22Nm for resolver, 1.09Nm for encoder version
[15:05:01] <CaptHindsight> I wonder if it's just due to how the drive is programmed
[15:05:26] <jdh> 621w vs. 519w
[15:09:48] <pcw_home> Probably max encoder vs max resolver temperature
[15:11:29] <jdh> and they are sealed
[15:12:25] <pcw_home> Modern insulations (and the right magnets) will let motors and resolvers run pretty hot, but encoders are more limited)
[15:32:33] <CaptHindsight> anyone ever work with ultrasonic welding of metals to metals or polymers?
[15:36:08] <jdh> I do ultrasonic inspection of welded metals
[15:37:02] <Loetmichel> CaptHindsight_ i had made a few welds of PMMA once
[15:37:09] <jdh> seems like metal welding would take a whole lot of power
[15:37:22] <Loetmichel> to test the process at a seller for pmma tools
[15:37:51] <Loetmichel> but i dont know the background behind it
[15:44:10] <Lathe_newbie> what do i need to run a dc servo with an mesa card?
[15:44:16] <Lathe_newbie> it is 90v/7a
[15:47:21] <CaptHindsight> jdh: what size defects? and to what depths? just wondering
[15:51:33] <CaptHindsight> Lathe_newbie: I forget the part numbers but they make a FPGA IO card + servo card. Maybe the 7i29 2KW H bridge for the servo drive
[15:54:11] <Lathe_newbie> capt is a current limiter and a h bridge not enough for the 5i25?
[15:54:22] <Lathe_newbie> or is current limitting with the card possible?
[16:17:39] <andypugh> Lathe_newbie: You need current feedback, and that is in the drive.
[16:18:33] <andypugh> 7i29 might be a bit overkill, but when comparing prices bear in mind that it handles two motors.
[16:20:34] <Lathe_newbie> andypugh so i could use a current limitter, thats all?
[16:20:52] <Lathe_newbie> if current is over max, go down with the pwm
[16:21:03] <Lathe_newbie> just a comp?
[16:22:21] <Lathe_newbie> so a shunt, a comperator and if the comperator says, current is higher than it should, disable pwm input?
[16:26:47] <Lathe_newbie> or do i need something more?
[16:27:51] <andypugh> No, if you are willing to build your own device, then a PWM-controlled H-bridge isn't hard
[16:28:51] <Lathe_newbie> and current limitting how to do it easiest way?
[16:29:02] <Lathe_newbie> just a shunt
[16:29:04] <Lathe_newbie> a comp
[16:29:11] <Lathe_newbie> and disable drive if overcurrent?
[16:30:07] <andypugh> The easiest way is to buy 3 of these: http://www.ebay.com/itm/Advanced-Motion-Controls-Brush-Type-PWM-Servo-Amplifier/181229916982
[16:30:49] <andypugh> I don't think you would be able to buy the parts for that price
[16:31:24] <Lathe_newbie> not enough voltage
[16:31:29] <Lathe_newbie> motors have 90V/7A
[16:32:03] <andypugh> I don't think you will notice the difference between 80V and 90V
[16:33:06] <Lathe_newbie> but a simple H bridge with gate drivers and mosfets would work, too
[16:33:08] <Lathe_newbie> ?
[16:35:35] <andypugh> In theory. In practice you are likely to burn through a lot of components. Do you want to see my pictures?
[16:35:57] <Lathe_newbie> picture of what?
[16:36:12] <andypugh> The parts I blew up trying to make my own drives
[16:36:35] <Lathe_newbie> did you gave up?
[16:36:40] <andypugh> Mainly
[16:36:41] <Lathe_newbie> or does it work now?
[16:39:36] <andypugh> All my machines are running with commercial drives.
[16:40:05] <Lathe_newbie> i think, i will give it a try
[16:40:11] <Lathe_newbie> i can still buy drivers
[16:40:27] <andypugh> There are lots of extra features that are useful, like safety shutdowns and component protection parts.
[16:41:21] <andypugh> This is my home-brew Brushless Servo drive. http://youtu.be/oyeJfNg3NfQ
[16:42:16] <andypugh> But there is a bunch of stuff going on there, including the Arduino reading the resolver to figure out the commutation.
[16:42:50] <andypugh> Then I got some 8i20s to write a driver for, and they just work better.
[16:43:54] <Lathe_newbie> this looks nice...
[16:44:01] <Lathe_newbie> i have a few motors with resolvers
[16:46:46] <andypugh> I am also not using my homebrew resolver converters any more: http://wiki.linuxcnc.org/cgi-bin/wiki.pl?ResolverToQuadratureConverter
[16:47:54] <andypugh> You will se a pattern here. There are lots of things that I can do in a half-assed way, but the Mesa parts have all the wrinkles thought through, and reliability engineered in by an expert.
[16:48:03] <Lathe_newbie> 8MSA2X.R0-18
[16:48:06] <Lathe_newbie> would be one
[16:48:09] <Lathe_newbie> 1.15A
[16:48:12] <Lathe_newbie> 330V
[16:48:16] <Lathe_newbie> 0.8Nm
[16:48:19] <Lathe_newbie> with brake
[16:49:25] <Lathe_newbie> N=6000
[16:50:23] <Lathe_newbie> would be nearly perfekt for my z axis
[16:50:40] <andypugh> PCW: pcw_home: Would you care to opinionate on the pin naming for the hm2dpll function? (Discussion ongoing on -devel).
[16:51:23] <andypugh> Is there any likelyhood of us seeing the gtag 16 dpll? Perhaps the pin name could be a little less unwieldy
[16:53:26] <PCW> I named it hm2dpll to differentiate from the older (and custom and deprecated dpll)
[16:56:17] <andypugh> Aye, I am trying to decide whether our HAL pins need to also make that distinction
[16:59:58] <PCW> I can just drop the old DPLL so feel free to just use DPLL
[17:29:14] <_DJ_> gn8
[18:16:52] <Jymmm> Got Hippo? http://www.godtube.com/watch/?v=00FEJCNU
[18:23:25] <andypugh> Interesting that a hippo can work a door handle.
[18:36:31] <MacGalempsy> evenig
[18:37:12] <MacGalempsy> just about to go connect to the digital drive
[18:38:12] <PetefromTn> Evening Folks...
[18:40:19] <andypugh> Not evening here any more, except with a very liberal interpretation.
[19:11:30] <DrNoboto> ahoy
[19:12:37] <kengu> evening
[19:14:37] <andypugh> Been 30 mins, looks like MacGalempsy electrocuted himself. I hate it when that happens.
[19:16:27] <PetefromTn> where is he electrocuting himself again?
[19:19:50] <MacGalempsy> no client call
[19:21:04] <MacGalempsy> crisis mode on this project. they are getting pissed that the geology is confusing and costing a lot to drill the well
[19:36:33] <PetefromTn> Man I am totally lost...
[19:36:51] <CaptHindsight> kind of like moving near an airport ans then complaining about all the noise
[19:42:26] <MacGalempsy> as they say in the industry, if a well worth drilling once, its worth drilling three times
[19:45:26] <andypugh> PetefromTn:
[19:45:31] <andypugh> ?
[19:45:48] <PetefromTn> andypugh: Yeah man whatsup?
[19:45:57] <andypugh> Why be ye lost?
[19:46:33] <PetefromTn> Not sure what Mac is talking about. Last time I heard he was working on a Benchman mill or something like that..
[19:47:54] <MacGalempsy> the mill is going well, but I am talking about the 9-5 job
[19:48:14] <MacGalempsy> I drill oil and gas wells from 9-5 and redo the cnc inbetween
[19:48:16] <PetefromTn> Oh okay...
[19:48:45] <MacGalempsy> i am hoping the programming is limited, but will do what it takes
[19:49:47] <andypugh> I drive cars for a job and operate CNC for a hobby. I suspect that there are peopls who operate CNC for a job and drive cars for a hobby.
[19:52:35] <MacGalempsy> heh. true, that is one of my hobbies
[19:52:55] <PetefromTn> Sometimes I am not sure just what exactly my job is so ya got me beat. LOL I built custom Cabinetry and run my CNC and do fabrication work in the shop so never know what will come in next. Just finished tig welding a Honda Shadow Fuel tank where someone tried to pull a dent out with a spot welder and managed to rip a small hole in it. Then they tried to weld it back up with a flux core 110volt wire feed welder and made a
[19:52:55] <PetefromTn> horrendous mess of it. I had to cut out a four by five inch panel, beat a patch panel to contour and tig weld it back in. It was a PIA>>
[19:54:53] <andypugh> I hope you didn't under-charge, but suspect you did.
[19:55:16] <andypugh> They would have been a lot better off looking on eBay for a fresh tank
[19:55:23] <PetefromTn> LOL just out of curiosity what do you figure would be a fair price for a job like that..
[19:55:41] <PetefromTn> He told me a new tank is like $600.00
[19:55:47] <andypugh> I am guessing it took you three hours or so?
[19:56:00] <PetefromTn> Actually more like four and a half...
[19:56:16] <andypugh> yeah, so I would be wanting $200 at least
[19:56:37] <PetefromTn> I don't have an english wheel or planishing hammer so I had to beat it out on a pair of leather gloves stacked up.
[19:56:43] <andypugh> And that will buy you a second-hand tank that doesn't need a repaint.
[19:56:52] <PetefromTn> Thats about right....
[19:57:33] <PetefromTn> Apparently this tank is a special edition that has larger capacity and a different shape so it is at least as rare as a Honda shadow tank can be I suppose.
[19:57:45] <andypugh> http://www.ebay.com/itm/Honda-Shadow-500-Gas-Tank-Original-Paint-/231071718525?
[19:58:00] <andypugh> Does he need the extra capacity?
[19:58:00] <PetefromTn> He was pleased and paid me the cash and left smiling telling me he has more work for me to do soon so I am good...
[19:58:21] <andypugh> Yeah, it's good for you, certainly.
[19:58:57] <andypugh> He needs billet yokes and billet rearsets too, of course. If only he know someonw with a CNC mill....
[19:59:22] <PetefromTn> Actually I think this is for a much larger bike like 1000CC or something... He said he bought the new tank from a friend so he can ride longer on the cruises with his friends whose bikes have more range I guess.
[20:00:28] <PetefromTn> LOL I have made a buncha stuff like that. There is a kid who comes around quite often who is building a Cafe racer and he has made me built custom adapters to put larger triple trees on the older frame and also install upside down forks etc..
[20:00:46] <andypugh> Just giving a feel for the going price for one that hasn't been messed with. No offence but your repaired tank will never be as perfact as one that never got crashed, will it?
[20:01:11] <andypugh> It's quite a big market.
[20:01:41] <andypugh> But I suspect quite a well-populated one.
[20:01:45] <MacGalempsy> andypugh: have you setup mesa cards before
[20:01:52] <andypugh> A bit.
[20:02:02] <PetefromTn> LOL no actually that damn metal was razor thin and was a real BEOTCH to weld up with no leaks..
[20:02:17] <PetefromTn> I have...
[20:02:38] <MacGalempsy> so once I get all the leads plugged into the boards, how easy is it to setup the pins? I have been reading the HAL manual, but its getting a bit overwhelming
[20:03:00] <andypugh> Which cards?
[20:03:11] <MacGalempsy> 5i25,7i77,7i84
[20:03:33] <andypugh> Pncconf will probably do the heavy lifting
[20:03:48] <MacGalempsy> perfect. exactly what I needed to hear
[20:04:01] <andypugh> But you have to feed pncconf the XML file for the 5i25 so it knows what to do with it.
[20:04:17] <PetefromTn> Yeah PNCconf gets you going pretty good. Still need to do some tinkering afterwards tho,
[20:04:40] <PetefromTn> Check out what my wife is making for us tonight!!
[20:04:43] <PetefromTn> http://www.cookingwithsugar.com/amazing-halloween-rainbow-party-bundt-cake-recipe/
[20:05:11] <MacGalempsy> mmmm get that sugar rush!
[20:05:19] <MacGalempsy> no sleep til....BROOKLYN!
[20:05:28] <Valen> nice
[20:06:12] <andypugh> MacGalempsy: Starting point: http://www.linuxcnc.org/index.php/english/forum/39-pncconf/21670-5i25-firmware-xml-files-for-pncconf
[20:06:56] <andypugh> (use the last version published)
[20:08:05] <MacGalempsy> thanks! tonight I will hopefully get to look into the digital drive. there is one out I cannot figure out, but once inside, it should reveal the secret
[20:08:24] <andypugh> it still might not know about the 7i84. But that should just plug in (with the right wire) and be auto-detected.
[20:08:51] <Tom_itx> is that the sserial expansion card?
[20:08:55] <PetefromTn> Yeah she is almost done so I am stoked to see it finished.
[20:09:10] <PetefromTn> She is making two actually one for us and one to take to work tomorrow with her
[20:09:22] <andypugh> It only gets auto-detected by HAL/LinuxCNC unfortunately, not by Pncconf AFAIK, but perhaps you wil get lucky :-)
[20:09:54] <andypugh> Right, tme for me to retire. Night all.
[20:10:03] <PetefromTn> Nite Andy...
[20:10:17] <PetefromTn> What is the 7i84
[20:10:51] <PetefromTn> why do you need more than the combo? My entire machine will be run off those two cards with IO to spare..
[20:11:05] <Tom_itx> yeah that's the same one i was looking at
[20:11:15] <Tom_itx> sserial io card
[20:11:52] <Tom_itx> i was gonna move my pendant to it
[20:12:13] <Tom_itx> and to learn how sserial works
[20:12:23] <MacGalempsy> the 7i84 is to run the extras for the ATC and i/o didnt fit on the 7i77
[20:12:48] <MacGalempsy> each servo amplifier has 10i/o plus powers
[20:13:00] <Tom_itx> it's got 2 or 3 field powers too doesn't it?
[20:13:07] <PetefromTn> Really? My machine has the toolchanger and still has enough I0
[20:13:26] <MacGalempsy> the 7i84 is basically the lower half of the 7i77
[20:13:36] <MacGalempsy> sans encoder and motor ports
[20:14:07] <MacGalempsy> what is amazing is that once could daisy chain thousands of additional cards
[20:18:22] <Tom_itx> hardly practical but possible
[20:18:24] <PetefromTn> Yeah that is for sure a nice feature of the smart serial and mesa cards...
[20:20:07] <PetefromTn> I have been VERY happy not only with the cards themselves but also the service from Pete at mesa and OLeg I think his name is. Both are very knowledgeable.
[20:43:53] <Tom_itx> smart serial interface can support as many as 32 7I84 cards for a total of 1024 inputs and 512 outputs, not quite thousands of cards but plenty
[20:46:14] <PetefromTn> You sure love to sweat the details man LOL
[20:46:27] <Tom_itx> the devil is in the details
[20:46:44] <PetefromTn> often along with the nausea
[20:55:59] <Tom_itx> MacGalempsy what are you gonna use the 7I84 for?
[21:30:21] <MacGalempsy> Tom_itx: needed additional outs and ins for the ATC and the front control panel
[21:30:40] <MacGalempsy> the servo drives, and endstops took over the 7i77
[21:30:52] <MacGalempsy> well, also a bunch of other stuff
[22:26:34] <Tom_itx> MacGalempsy, have you wired it in and tested the sserial yet?
[22:26:58] <Tom_itx> i did a custom bit file for my 7i47 for one but don't have the board yet
[22:27:11] <Tom_itx> one was promised but hasn't arrived yet
[22:55:44] <MacGalempsy> Tom_itx: was just out three messing with the mill
[22:57:03] <MacGalempsy> I just attached the computer to the digital drive, but have not gone through the setup process in the manual yet. I came in to check work email and get the manuals.
[23:10:34] <MacGalempsy> Tom_itx: no wiring to the mesa card yet. Just would like to get the last of the major wiring figured out before connecting up the boards