#linuxcnc | Logs for 2013-03-01

[01:30:05] <Jymmm> What do you mean you cant catch a shark with it?! http://dx.com/p/fish-everywhere-pocket-pen-style-fishing-rod-and-reel-kit-silver-extended-length-90cm-58567
[01:51:46] <Jymmm> Not bad for $6 http://dx.com/p/solar-powered-sporty-wrist-watch-6020
[02:12:34] <DJ9DJ> moin
[02:33:13] <Loetmichel> mornin'
[09:45:37] <IchGuckLive> hi all around the world B)
[09:53:01] <Vq> hi specific place in the world :o)
[09:58:13] <IchGuckLive> wher ever you are O.O
[10:09:48] <IchGuckLive> ok by till later
[10:58:36] <Loetmichel> re @ home
[11:09:21] <R2E4> woohoo.... received my 5i25 and 7i77 cards.
[11:24:58] <Jymmm> R2E4: Well, have them all connected up, configed, and running yet?
[11:28:33] <cradek> R2E4: are you retrofitting a bridgeport r2e4?
[11:58:13] <R2E4> yes I am refitting a Bridgeport series 1 R2E4 boss 9
[12:07:08] <R2E4> Jymmm: well, i made a mistake of asking for low profile, and my computer with low profile is not good with latency. I had to change computers, I now have a good one but it's not low profile.
[12:07:39] <cradek> that's just a matter of the bracket, right?
[12:08:08] <jthornton> yea, just a different bracket
[12:08:10] <cradek> and that's cool, seb & I did one with those NC400 drives, it works nicely
[12:08:42] <R2E4> I just have to figure out where I cutout the controller on the Bridgeport.
[12:09:07] <cradek> we had all our ducks in a row, and we ran our first test cuts 11 hours after we started the retrofit. it was late. :-)
[12:09:13] <R2E4> IS there docs somewhere or someone that has documented this? i checked the drawings.
[12:09:29] <cradek> we had full wiring diagrams for the machine
[12:09:44] <cradek> this was a boss8, not boss9. difference is just a crt??
[12:09:55] <R2E4> I have all the diagrams, but don't know what I need and dont need. re: FMDC boards etc...
[12:10:35] <R2E4> I have to study the scenario. I have two weeks before the Bridgeport gets here so i have some time.
[12:11:21] <jthornton> on my Anilam converted BP I kept the drives and the power supply
[12:11:55] <R2E4> Thats what I am going to attempt.
[12:11:56] <jthornton> I added the 5i25 7i77, 24vdc and 5vdc power supplies and a computer.
[12:12:13] <jthornton> oh I also kept the MPG but ditched the serial board from it
[12:12:44] <cradek> on seb's machine we replaced the 3phase main transformer with a huge single phase, and ran the spindle on a vfd, so the result was all single phase 240
[12:13:07] <R2E4> I allready purchased my vfd....
[12:13:23] <IchGuckLive> hi all B)
[12:13:50] <jthornton> mine is only 1 1/2HP so a 240v automation direct GS-2 vfd was used so I have spindle control
[12:14:33] <R2E4> Mine is setup for 480 3 phase. i have that in my shop, should I use that or go 220 single phase?
[12:15:00] <cradek> heh, certainly use the 3 phase then. this was for a home shop.
[12:15:00] <jthornton> if you have 480 3 phase use that
[12:15:26] <cradek> I worked pretty hard to find the appropriate transformer in this case.
[12:15:35] * jthornton is jealous for sure with home made phase converters for the 3 phase
[12:16:46] <R2E4> I was going to convert my colchester student lathe to a vfd also. Didnt think about using the existing 3 phase.
[12:17:43] <andypugh> The Student has enough gears that a VFD might not be needed. Though CSS is easier with a VFD
[12:22:16] <IchGuckLive> is the gs2 from automotion available in europ ?
[12:23:10] <jthornton> I don't know if you can get them over there or not
[12:24:45] <R2E4> I wasnt going to do it for the speed, I was thinking of the 480v 3hase motor.
[12:27:16] <IchGuckLive> jthornton: http://linuxcnc.org/docs/html/man/man1/gs2.1.html speed-command (float, in) isent it out as speed sent to VFD
[12:33:23] <andypugh> Gah! The Homeplug network to my garage has stopped working. My CNC machine doesn't understand USB flash drives. I wonder how I can get round this?
[12:34:12] <cradek> the advice for technical problems 100 years ago was "get a horse"; today it's "get a wire"
[12:34:31] <andypugh> A very long wire.
[12:34:48] <IchGuckLive> andypugh: NAS
[12:35:04] <andypugh> Not sure how a NAS would help
[12:35:08] <R2E4> I dont know if I have a bracket to makde the low profile into normal pci card. Will have to check the computer graveyard in my basement.
[12:35:56] <IchGuckLive> R2E4: mashine at your garage ?
[12:36:09] <andypugh> Wierdly, ssh can communicate
[12:36:15] <R2E4> it will be in two weeks. the 16th.
[12:36:23] <andypugh> ls
[12:36:30] <IchGuckLive> ao you order parts without mashine in hand
[12:36:49] <R2E4> yes.
[12:37:08] <R2E4> why? bad idea?
[12:37:15] <IchGuckLive> cand await the first part to be milled ;-)
[12:37:50] <R2E4> hehe.... something like that.
[12:38:28] <IchGuckLive> get 3 steppers and some pipes and tomorrow you are on millng
[12:38:55] <AR_> lol
[12:38:58] <R2E4> I have a cnc router I built so i have a fix..... at least.
[12:39:13] <IchGuckLive> O.O
[12:39:26] <R2E4> https://www.youtube.com/watch?v=FadI53SivOg
[12:39:26] <IchGuckLive> so hevy chipping is the future
[12:40:04] <R2E4> yeah, I'm throwing some light dust around now, but plan on throwing .25" chips soon.
[12:40:13] <R2E4> metal ones at that.
[12:41:05] <R2E4> I have a chance at a hitachi sieki vm40II, if all goes well with the bridgeport.
[12:41:37] <IchGuckLive> r2e4 bad boy mach3 :-(
[12:42:11] <R2E4> I tried emc2 and couldnt get the kin to work. I have two motors on y axis.
[12:42:56] <R2E4> They were working on it and I couldnt find anyone who has done it at that time, so I fell back on mach3
[12:43:36] <R2E4> I will change once I get the bridgeport up and runing on linuxcnc and I learn it better.
[12:44:56] <IchGuckLive> you can output the signal to more then one pin
[12:45:13] <IchGuckLive> or even with servos use brigeport kinetics
[12:45:34] <IchGuckLive> R2E4: is it a timing belt or a tread system at that speed
[12:45:53] <R2E4> acme lead screws
[12:46:09] <R2E4> 8-8 .5"
[12:46:22] <R2E4> 425oz/in steppers at 48volts.
[12:46:33] <rizo> I am getting the "Exceeded positive limit on joint 0". My position is 29.9 and The max_limit is 400 and min_limit = -5. Any idea why?
[12:47:00] <IchGuckLive> rizo G92 is cleard
[12:48:00] <IchGuckLive> metric/inch problem G21/G20
[12:49:32] <rizo> will check that, thank you
[12:49:51] <IchGuckLive> move G53 to your axis zeros if you can reatch it
[12:50:05] <IchGuckLive> rizo: then in mdi get G92.1
[13:05:00] <R2E4> The 5i25 and 7i77 are really nicely done boards. I was surprised....
[13:05:51] <Tom_itx> those are mesa boards right?
[13:05:58] <R2E4> yeah....
[13:06:01] <Tom_itx> then why the surprise?
[13:06:23] <R2E4> I've never used them.... didn't know what to expect.
[13:06:43] <Tom_itx> everything else is just second rate
[13:06:59] <rizo> now i get the joint following error, even though the min_ferror and ferror are set to 500, which is far more than actual following error.
[13:14:32] <andypugh> Does the "machining time" estimator struggle with CSS mode on a lathe? 25,000 minutes seems a long time to wait.
[13:15:25] <Tom_itx> what's the rush?
[13:15:34] <Tom_itx> mine doesn't work that well either
[13:16:24] <R2E4> 17.3 days is long?
[13:16:35] <Tom_itx> mine says 700.54 min andy
[13:16:36] <andypugh> I need it done by saturday night!
[13:16:37] <cradek> yeah it probably doesn't know about css.
[13:16:56] <andypugh> And the last one fitted into a 3minute Youtube video :-)
[13:17:31] <Tom_itx> this one is shorter
[13:17:32] <R2E4> I'm fitted to go home. Friday yoohoo......
[13:17:39] <Tom_itx> the other one says 1187 min
[13:17:44] <Tom_itx> for reference
[13:18:35] <Tom_itx> i haven't tweaked the acutal run time factor in the cam though
[13:19:36] <andypugh> But I took the surface speed to 400 and cut to 0.1mm per rev :-)
[13:20:20] <Tom_itx> i'm not real familiar with lathe speeds yet, especially metric
[13:20:38] <Tom_itx> i probably have a slide rule here somewhere for it though
[13:21:06] <andypugh> 100 is aluminium. I normally run .15 cut per rev.
[13:21:17] <Tom_itx> that's movin right along
[13:21:37] <Tom_itx> i had .15 at first and jt suggested that was a bit much
[13:22:33] <andypugh> I think the file says 0.015?
[13:22:36] <Tom_itx> we only had a handfull of lathe jobs to run so once they were set, we just ran the code
[13:22:38] <Tom_itx> yes
[13:22:50] <Tom_itx> it originally was .15
[13:23:22] <andypugh> 0.015 is very small. You might run that on a big lathe in Imperial.
[13:23:41] <Tom_itx> maybe a bit more even
[13:23:44] <andypugh> Right, off to the shop.
[13:23:45] <L84Supper> tjtr33: ~$60K for a trunnion and rotary table for EDM with 10 arc sec accuracy or better
[13:24:45] <R2E4> Is the 5i25 included now in the PncConf?
[13:25:21] <L84Supper> http://www.haascnc.com/we_spec1.asp?id=TR310&sizeID=310MM_ROTARY ~$50K for a beefier one with 30 sec accuracy
[13:26:35] <andypugh> R2E4 I don't think so, but you can add it: http://www.linuxcnc.org/index.php/english/forum/39-pncconf/21670-5i25-firmware-xml-files-for-pncconf
[13:26:40] <L84Supper> http://www.haascnc.com/we_spec1.asp?id=TRT210&sizeID=210MM_ROTARY only $26K but not enough clearance
[13:28:16] <andypugh> L84Supper: Probably far too strong for EDM too.
[13:28:47] <R2E4> yeah, I was in that thread. I noticed the dates was middle last year so I was wondering if they added it. but I can read....:-)
[13:28:47] <L84Supper> andypugh: I'm using it for contactless 3d printing
[13:28:47] <andypugh> (Not that that is a disadvantage, but you would trade mass/stiffness for angular accuracy I expect?)
[13:29:03] <R2E4> thanks
[13:29:50] <R2E4> I think I read I can upgrade to the latest in the buildbot page and that would house it correct?
[13:30:29] <L84Supper> andypugh: just comparing prices, but for the size parts we are planning 10 arc sec is the repeatabilty needed, but there no real off the shelf units available with so little loads in mind
[13:30:50] <tjtr33> L84Supper, mmk japan? didja ask Pete @ hman?
[13:31:00] <L84Supper> ours are only 3Kg vs maybe the 200Kg they all seem to support
[13:31:18] <L84Supper> tjtr33: yeah, they had the highest prices :)
[13:31:27] <tjtr33> haha, sorry
[13:31:39] <L84Supper> no problem, they are nice units
[13:31:54] <tjtr33> wait > 50K no way! want me to ask?
[13:32:04] <L84Supper> the best accuracy except for something custom from Aerotech
[13:32:18] <tjtr33> want an aerotech 32 axis control?
[13:32:39] <L84Supper> tjtr33: they even invited me to their showroom in Schaumburg
[13:33:03] <tjtr33> hman? aerotech is in the wilds of PA last visit
[13:33:22] <L84Supper> aerotech is way under 1 arc second for repeatability
[13:33:32] <tjtr33> all laser stuff, yep
[13:33:47] <tjtr33> the ctl was crap for edm, spent a lot on that project
[13:34:25] <L84Supper> http://www.aerotech.com/product-catalog/stages/rotary-stages/axr.aspx?p=%2fproduct-catalog%2fstages%2frotary-stage.aspx%3fpage%3d3
[13:34:46] <tjtr33> theres a noce german unit at Mitsubishi in EGV, not near 50K, a tiny trunnion, 'one armed'
[13:35:00] <L84Supper> well 1 arc sec anyway
[13:35:38] <L84Supper> i need to clear 370mm / 2 = 185mm radius
[13:36:06] <tjtr33> joe, the professor behind aero is a nice guy, but we couldnt get good results
[13:36:34] <tjtr33> lemme ask at mits about 370m dia
[13:39:07] <L84Supper> no rush
[13:39:09] <tjtr33> answers slow ( friday at a big co... )
[13:40:15] <tjtr33> dang found a stuck bit on an avr, cant prescale at one, try 0, haha still runs, so stuck bit damnit
[13:40:31] <L84Supper> nobody has a solution to take a system like this into production, >1000 systems a year
[13:40:45] <L84Supper> at least not one that people will pay for :)
[13:41:52] <tjtr33> at that qty, you might get 3R/Erowa/Hman to make custom, anyway, i'd find a good house in Taiwan to make 'em to spec
[13:42:43] <L84Supper> don't laugh, but we'd have to make them in China, Taiwan is considered an import there
[13:44:28] <tjtr33> ? oh your mfctr is China based
[13:44:54] <L84Supper> production yes, R&D is in the USA
[13:45:24] <L84Supper> unfortunately it's difficult to make anything like this here
[13:47:16] <L84Supper> we actually it's easy to make in the USA but hard to sell it here
[13:47:34] <L84Supper> it's difficult to make in China but easy to sell there
[13:48:06] <L84Supper> and it's difficult for Chinese manufacturers to import from the USA
[13:49:02] <tjtr33> thats bad! US makes money by selling to other countries!
[13:49:29] <tjtr33> else we are just redistributing the cash inside our borders
[13:50:30] <L84Supper> go back 30 years and tell the Reagan administration that :)
[13:52:03] <L84Supper> patents stifle innovation here, China protects itself by taxes on imports and controls the export of money, the USA doesn't ..
[13:52:08] <tjtr33> maybe of use: most Taiwan mfctrs are money hungry as any others, so have mfctring in China as well
[13:52:19] <L84Supper> 0 import duties to the USA from China
[13:52:51] <tjtr33> ? i pay for Taiwan imports! like 12% iirc
[13:52:58] <L84Supper> they have the same exact machine tools in China as anywhere else
[13:53:29] <L84Supper> it's just their work ethic doesn't include consistent quality
[13:54:45] <L84Supper> Taiwan to US?
[13:55:04] <L84Supper> China to US for most things is 0%
[13:55:16] <tjtr33> TW->US as parts
[13:55:56] <tjtr33> sorry, as new good, label it parts and get in free
[13:57:04] <tjtr33> i'll get you info on any small precise one-armed trunnions, l8r
[13:57:21] <L84Supper> oh and USA to China is generally 10%
[13:57:35] <L84Supper> if they allow the purchase there
[13:58:21] <L84Supper> the banks in China are government owned, so they make it very difficult for funds to leave China
[14:00:44] <L84Supper> Carter was right back then, but nobody listened and most don't believe in facts today
[14:03:07] <pcw_home> So much for free trade
[14:03:18] <R2E4> free trade?
[14:04:18] <R2E4> I bought a stepper motor for 49.00 from Keling in the US. I am ion Canada. Free trade was for Canada/US/Mexico, I paid 63.00 in taxes and customs, over and above the 49.00 for the motor.
[14:04:34] <R2E4> Thats fre enterprise for someone, certainly not free trade.
[14:07:07] <L84Supper> China --> USA --> Canada
[14:07:35] <R2E4> China wasn't in the free trade agreement....
[14:07:55] <L84Supper> yeah, NAFTA
[14:08:41] <R2E4> North America Free Trade Agreement....... Since when is China in North America?
[14:08:42] <L84Supper> whenever I hear the name of some new proposed legislation I assume it to mean just the opposite
[14:08:50] <R2E4> haha
[14:09:46] <R2E4> Whatever, whomever, It is far from FREE!!!
[14:11:14] <pcw_home> unless you have the right lobby
[14:35:39] <R2E4> hostmot2 latest to get the 5i25 configs?
[14:37:13] <pcw_home> HOSTMOT2 is the generic name of the firmware set for HOST based MOTion control
[14:38:27] <L84Supper> R2E4: it's similar to unlimited internet.. with limits
[14:38:29] <R2E4> The manual is saying upgrade the hostmot2 firmware images or continue using an allready-installed emc2-firmware-mesa *2.3 package
[14:38:46] <pcw_home> If you ordered a 5I25 with a daughter card, it will aready have the firmware installed
[14:38:55] <R2E4> ah, ok
[14:39:27] <pcw_home> the 5I25/6I25/7I80 are differernt in that thay have on card firmware storage
[14:39:58] <pcw_home> so unless you need to change/update the firmware you dont need any firmware files
[14:40:07] <R2E4> So the only thing I have to worry about is getting the latest config files
[14:40:26] <pcw_home> For pncconf, yes
[14:41:04] <R2E4> which I can get on the buildbot site
[14:41:36] <pcw_home> there are also some example stepper and servo HAL/INI files for the 5I25 if you want to cobble up your configuration by hand
[14:42:47] <R2E4> What would you suggest?
[14:43:55] <R2E4> I originally thought I was going with JT's configs, but found out he is using 7i37 or something different.
[14:43:59] <pcw_home> pncconf can save a lot of time for people just starting but at some point you will likely need to learn HAL
[14:44:45] <pcw_home> especially for servo configs, machine with tool changers etc
[14:44:57] <R2E4> I downloaded and printed the HAL manual..... along with the getting started manual.
[14:45:42] <R2E4> because I am am at the point where I dont see the 5i25 or 7i77 in the manual....hehe
[14:45:48] <pcw_home> that and a example HAL file may be all you need (some people get along better with HAL than others)
[14:46:59] <R2E4> I will be singing HALlelujah when I get this completed......
[14:47:46] <pcw_home> Theres nothing really special about the 5I25,7i77. the HM2-servo demos will work for the combo except for a few signal names and 2 lines in the .ini file changed
[14:49:10] <R2E4> In the config selector when I first startup? Thats a good place to start then.
[14:51:45] <pcw_home> freeby.mesanet.com/7i77.zip is a hm2-servo based demo (if you have the hostmot2 stuff installed, you can unzip this in ~/linuxcnc/configs/hm2-servo/)
[14:52:52] <pcw_home> but you can also try pncconf (get the lastest and install the appropriate xml files)
[14:59:55] <L84Supper> http://tinyurl.com/agaydsd I just don't see paying ~$45K for this and having to wait 12+ weeks
[15:00:57] <L84Supper> million count encoder and some nice bearings is most it
[15:24:34] <andypugh> L84Supper: Would servo control and very good feedback work? 1 arc-second: http://www.renishaw.com/en/resolute-rotary-angle-absolute-encoder-options--10939
[15:25:29] <andypugh> I can't read: The RESA offers impressive accuracy with resolution to 0.00075 arc second
[15:25:30] <cradek> "resolute" is a great name for an encoder.
[15:26:10] <L84Supper> andypugh: I think so
[15:27:00] <L84Supper> $5k in materials tops
[15:27:21] <L84Supper> why pay somebody $35k more to deliver in 3 months
[15:28:08] <L84Supper> even if the materials are $10k
[15:28:50] <L84Supper> plus they have an office 30 minutes from me
[15:29:12] <L84Supper> Hoffman Estates
[15:29:27] <L84Supper> actually 3 minutes from Keling
[15:33:24] <L84Supper> China office is also nearby
[15:34:00] <pcw_home> I'll make the BISS HM2 interface work if someone 'loans' me a Resolute encoder
[15:34:03] <L84Supper> that's another smart thing about China, they are keeping lots of the tech in the same area
[15:36:44] * JT-Shop checks his desk for a Resolute encoder...
[15:37:09] <pcw_home> REXA preferred :-)
[15:37:12] <andypugh> They are strangley sexy, aren't they?
[15:37:49] <andypugh> Serious suggestion. why not ask Renishaw for one?
[15:37:53] <pcw_home> Yes absolue and +-0.22 arc second accuracy
[15:38:35] <cradek> I've successfully asked for hardware gifts in order to add support and then continue to use it myself...
[15:39:05] <cradek> sometimes it's really good business to give stuff away
[15:39:59] <pcw_home> Well these are multi K$ encoders but I guess it would not hurt to ask
[15:41:23] <pcw_home> They must have used/blems/demos around
[15:42:42] <andypugh> And your interfaces are a natural for the sorts of uses they are intended for.
[15:43:13] <andypugh> I am currently using the oven to solder some pewter...
[15:43:22] <andypugh> It seems to be working.
[15:43:29] <pcw_home> For L84Suppers app you probably want encoder like that and 1:1 torque motors
[15:44:01] <pcw_home> (linear motor bent into a large ring)
[15:44:05] <andypugh> cradek: I hate to admit how many "sample" Mesa cards I am using.
[15:44:37] <pcw_home> Isnt pewters melting point very close to solder?
[15:48:15] <andypugh> Yes, which is why I am using the oven and a thermocouple rather than a blowtorch
[15:56:09] <pcw_home> is this the replacement tankard lid?
[15:59:20] <andypugh> Indeed it is.
[15:59:42] <andypugh> _nearly_ there, just soldering on the crown/handle
[16:07:49] <Tom_itx> andypugh, get both halves spun?
[16:09:26] <andypugh> aye.
[16:10:10] <Tom_itx> apparently the 2nd gcode ran ok..
[16:12:08] <andypugh> Indeed it did. Things would have gone better if my block of wood had been big enough.
[16:12:19] <andypugh> But I muddled through.
[16:14:45] <andypugh> I also now know that my oven is badly-calibrated.
[16:17:32] <DJ9DJ> gn8
[16:27:48] <Jymmm> JT-Shop: http://www.youtube.com/watch?v=NJlyMFCX9CA
[16:33:30] <andypugh> Tom_itx: https://plus.google.com/photos/108164504656404380542/albums/5849768999973574065?banner=pwa
[16:47:11] <tjtr33> L84Supper, if you want extreme accurate position ( not motion ) NASA loved these hurth gear indexers http://newbould.com/stainlessindexer.htm
[16:47:41] <tjtr33> they talked about an nc version ( stop, unclamp plates, index, reclamp )
[16:48:03] <tjtr33> curvic/hirth
[16:53:10] <L84Supper> tjtr33: those look nice
[16:54:31] <L84Supper> I can also spend the $30K saved on a VMC to make more
[16:57:42] <tjtr33> maybe a newbould with encoders and motors, you could talk to him http://www.youtube.com/watch?v=OQKieek9Jrg his stuff is good
[16:59:57] <L84Supper> much of what I've looked at and used is what is also used in the semiconductor industry for submicron work
[17:00:52] <andypugh> Spinning the lid inner: http://youtu.be/IOBxmGZR3j0
[17:01:00] <tjtr33> yeh precise and small dia is ok, but your 15 inch dia... is touchy
[17:01:20] <andypugh> (I didn't use the one I videoed)
[17:04:19] <L84Supper> http://imagebin.org/248619 it will end up looking similar to this, only with the rotary table up higher
[17:07:16] <L84Supper> skunkworks: what board is this on? http://imagebin.org/248609
[17:07:18] <andypugh> L84Supper: How about a lever arm and a preloaded ballscrew. Working closed-loop on a good encoder, you don't even need kinematics.
[17:08:11] <L84Supper> oh yeah, all closed loop with good encoders
[17:08:37] <L84Supper> there's also going to be a camera with 2um res for alignment
[17:09:12] <skunkworks> L84Supper: it peaked at about 5k after a few hours
[17:09:29] <skunkworks> L84Supper: let me find it
[17:10:00] <L84Supper> skunkworks: is that with the 3.5 kernel and RTAI?
[17:10:37] <skunkworks> yes
[17:10:58] <skunkworks> it isn't quite stable yet - But it has worked on 2 systems I have tried
[17:11:42] <Loetmichel> L84Supper: hmm, seems like a slow graphics board...
[17:11:44] <Loetmichel> http://www.cyrom.org/palbum/main.php?g2_itemId=12334&g2_imageViewsIndex=1
[17:11:44] <L84Supper> nice, RTAI, xenomai and RT
[17:12:01] <Loetmichel> mine with onboardgrapics...
[17:12:13] <Loetmichel> seems sufficient ;-)
[17:13:50] <skunkworks> L84Supper: F1A75-M PRO R2.0 Motherboard with the amd
[17:13:52] <skunkworks> A4 3400 apu
[17:14:07] <skunkworks> That was with idle=poll boot param
[17:14:25] <skunkworks> without it 30+k
[17:15:36] <tjtr33> andypugh, i expected to see your face reflected, http://s3.amazonaws.com/rapgenius/300px-Hand_with_Reflecting_Sphere.jpg
[17:16:05] <skunkworks> the video seems quite good - the gears at full screen are smooth
[17:16:15] <L84Supper> we have been getting <5K with everything AMD for the past few years even with integrated graphics
[17:16:27] <andypugh> L84Supper: In your picture, drop the mystery motor down about a foot, and put a lever on the pivot end. You need to mount the motor on a pivot, and have another pivot on the end of the lever, and those might take some engineering to be completely lash-free.
[17:17:39] <skunkworks> L84Supper: recently - I have not seen that without tweeking
[17:17:58] <L84Supper> andypugh: that was just a stock file
[17:23:36] <L84Supper> http://www.newport.com/XM-Series-Ultra-Precision-Linear-Motor-Stages/369840/1033/info.aspx#tab_Specifications
[17:25:27] <andypugh> No indication of stiffness, but then you probably don't care.
[17:28:11] <L84Supper> the load of the other parts of the stage are more than the parts being made
[17:29:42] <L84Supper> making one of these isn't too hard, it's the making 100+ that is like shopping for the best Lego's
[17:31:55] <L84Supper> it usually ends up being the supplier that sells the most. So for this it's probably whoever supplies the semiconductor wafer foundries with automation
[17:41:34] <andypugh> This is so lilluminating: http://www.youtube.com/watch?v=mRuSYQ5Npek
[17:48:59] <andypugh> This went for real money: http://www.ebay.com/itm/Bridgeport-Romi-EZ-Path-CNC-Lathe-/190803529045?_trksid=p2047675.l2557&ssPageName=STRK%3AMEWAX%3AIT&nma=true&si=RGj8BoJc8UEIThJUQzrXMMTaeE0%253D&orig_cvip=true&rt=nc
[17:49:37] <andypugh> Despite being in Thurso. https://maps.google.co.uk/maps?q=thurso&hl=en&ll=56.267761,-3.493652&spn=13.754682,32.739258&sll=51.79671,0.638411&sspn=1.909317,4.092407&hnear=Thurso,+Highland,+United+Kingdom&t=m&z=6
[17:49:52] <andypugh> I know the UK is relatively small, but that is still the middle of nowhere.
[17:50:20] <andypugh> Piy, it would have amused me to have a Bridgeport lathe and a Harrison Mill :-)
[17:56:56] <PCW> Andy: dont power up new 8I20
[17:57:36] <PCW> Assembly person made big mistake on last 25
[17:58:03] <andypugh> Luckily I have been otherwise engaged :-)
[17:58:14] <Connor> Eek. What did they do?
[17:58:15] <andypugh> Wil I see sparks and smoke?
[17:58:42] <PCW> left out shoulder washer and silpad on brake transistor
[17:59:44] <andypugh> That sounds like sparky-time
[17:59:49] <PCW> the anodization makes is sort of isolated (ohmmeter wise)
[17:59:58] <PCW> but not safe
[18:02:39] <andypugh> That's Q2 (the Q previoulsy known as Q1)?
[18:05:05] <PCW> Yes
[18:06:02] <andypugh> I can get the parts from RS and retrofit
[18:07:47] <andypugh> http://uk.rs-online.com/web/p/thermal-gap-pads/1692177/ ?
[18:08:33] <andypugh> Hmm, though I end up with 50 of them...
[18:10:27] <andypugh> Aha! A cheaper alternative; http://www.ebay.co.uk/itm/TO220-power-transistor-mount-kits-x-2-sets-/181084179179?pt=UK_BOI_Electrical_Components_Supplies_ET&hash=item2a29754aeb
[18:12:10] <ReadError> is there a pretty gui tool that will let me rotate/move gcode?
[18:12:31] <ReadError> im using grecode right now but it wont let me keep the same origin
[18:12:58] <tjtr33> andypugh, mica :)
[18:14:35] <andypugh> Interesting fact (possibly only to me). Formica is a contraction of "Formable Mica" and has no connection to the latin name for ants, or to formic acid, at all. It was originally created as an alectrical insulation, and only later became a worktop (etc) material.
[18:15:04] <tjtr33> find it under big old transistors ( or rocks )
[18:15:53] <andypugh> Formic acid and Ants (formica) and the hillariously-missheard word "formication" are all related though.
[18:16:37] <L84Supper> spoken like a true formicator
[18:16:52] <tjtr33> under control of the king
[18:18:41] <L84Supper> you could mix carbon black with a resin to make your own thermal gad pads
[18:19:13] <andypugh> something non-conducting might be wiser
[18:20:15] <L84Supper> it is, you just need the proper carbon black
[18:20:34] <andypugh> Nan-diamond?
[18:20:42] <andypugh> (Nano)
[18:21:14] <L84Supper> carbon blacks are cheap, few $/lb
[18:21:30] <andypugh> Actually, dimond dust would be ideal, as it has a very high thermal conductivity. Especially isotopically pure C14 diamond.
[18:21:59] <L84Supper> just higher priced
[18:22:10] <r00t4rd3d> british port http://i.imgur.com/hZVSbcm.gif
[18:22:22] <r00t4rd3d> err porn
[18:23:49] <andypugh> I prefer Port
[18:23:58] <tjtr33> pour-n
[18:25:02] <L84Supper> we use carbon blacks in polymers to make them more thermally conductive than aluminum without being electrically conductive
[18:27:41] <andypugh> I tried it for this: http://link.springer.com/article/10.1007%2FBF00275452?LI=true but decided that TiO2 was better (and nicer)
[18:51:38] <Tom_itx> andypugh, how'd it all turn out?
[18:51:45] <andypugh> Grand
[18:52:07] <andypugh> Did you see the picasaweb link?
[18:52:27] <andypugh> https://plus.google.com/photos/108164504656404380542/albums/5849768999973574065?banner=pwa
[18:52:28] <andypugh> [10:33pm]
[18:52:33] <Tom_itx> the one you keep adding to yes
[18:52:47] <andypugh> Last two pics are the new lid
[18:53:08] <Tom_itx> did the halves fit ok?
[18:53:39] <andypugh> I manually tweaked the inner shape. I think I under-pushed the outer.
[18:54:11] <Tom_itx> looks good from here
[18:55:27] <andypugh> Aye. The next one would be better, but I hope not to do a next one.
[18:56:10] <andypugh> It's lot stronger than the previous one.
[18:56:29] <PCW> Looks good but too shiny!
[18:56:41] <Tom_itx> yeah you need to tarnish it now
[18:56:55] <andypugh> Given that on a 200-person dinner it is placed and removed 400 times, by drunkards, it has a hard life.
[18:57:36] <Tom_itx> i may try a tap cycle with that template some time if i could get you to shove it into some wood or something
[18:57:47] <Tom_itx> just to see if it works ok
[18:58:20] <Tom_itx> i'm in no hurry to try it though
[18:58:31] <andypugh> Yeah. should be OK. I have some unbreakable taps (7/8 BSP)
[18:59:30] <Tom_itx> it has a groove cycle but i haven't set it up yet
[19:02:58] <andypugh> The pot ritual is that the chap to your right attracts your attention, and bows. he passes the pot, you bow, he takes the lid. You drink. you bow, he replaces the lid. you bow to your left, he takes the pot, you take the lid...
[19:03:58] <andypugh> This would be classed as "binge drinking" except we wear dinner-jackets :-)
[19:04:05] <Tom_itx> confusing
[19:06:10] <Tom_itx> must be getting used tomorrow then
[19:06:20] <andypugh> I think it is meant to be. if you get it wrong, you have to drink more :-)
[19:06:27] <Tom_itx> haha
[19:06:50] <andypugh> Yes, tomorrow evening. I wasn't actually going to attend, but I might have to now.
[19:08:00] <andypugh> Right, time to sleep in the hope of waking up without this annoying cough.,,
[19:29:39] <uw> there we are
[20:14:22] <ReadError> http://www.youtube.com/watch?v=UQ3Lisz1PMc
[20:14:28] <ReadError> little video i just made of my new machine
[20:18:03] <jdh> who is chris h?
[20:18:22] <ReadError> oh some troll
[20:19:02] <jdh> what's the material?
[20:19:05] <ReadError> g10
[20:19:18] <ReadError> i have some waste since i didnt rotate my gcode but im good now
[22:50:52] <Tecan> a bop bop a lubop a lop bam boo ?
[23:42:24] <R2E4_> Did the install ask me for root password?
[23:42:39] <R2E4_> I don remember and I need root access....:-)
[23:44:09] <R2E4_> I cant gain access via su -
[23:50:09] <ds3> found a ready to go D525 box for $200...hopefully, it will really be as good of a drop in as people hinted
[23:50:46] <Connor> should be.
[23:50:52] <Connor> what make is the D525 box ?
[23:51:20] <R2E4_> got it.