#linuxcnc | Logs for 2014-09-09

[02:21:39] <Deejay> moin
[05:33:51] <jdh> Connor: I'm using 0.0029 compensation. I am still using a built-up delrin ballnut mount though that has some flex
[05:54:06] <Jymmm> "built up"? 3d printed?
[07:06:14] <jdh> made out of 0.375 delrin
[07:06:27] <jdh> 4 pieces, bolted together
[07:06:55] <jdh> I've been planning on making a better one out of 6061 ever since then but I haven't gotten around to it.
[07:47:38] <jdh> Connor: when you make the ballnut mount, make an extra!
[10:00:06] <JT-Shop> I have a bunch of 3/4 aluminum angle to cut to 1/2" long parts, any suggestions how to cut them to size efficiently?
[10:01:24] <jdh> hard stop = bandsaw?
[10:01:27] <PetefromTn_> I would probably just bandsaw cut them to length plus a bit extra and then batch mill them with a facemill to finished length vertically
[10:08:25] <JT-Shop> how would you hold a bunch of them at the same time?
[10:08:51] <archivist_herron> horizontal mill and slitting saw :)
[10:13:20] <PetefromTn_> I usually put as many as will fit in the vise and use a thin strip of cardboard to equalize the thicknesses and try to square them to the spindle with an machinist square. Of course this would depend on the thickness of the angle extrusion. also depends on how many you need to make.
[10:15:00] <jdh> how close do you have to be
[10:15:26] <JT-Shop> not very close, I just need a finished edge
[10:16:17] <Jymmm> rasp file finish =)
[10:16:56] <Jymmm> for that fresh from the chop saw feel
[10:17:06] <jdh> belt sander
[10:20:44] <stt_michaelz> auto-bandsaw and finish in mill with jig :p
[10:23:48] <jdh> chop saw is probably faster and cleaner than a bandsaw
[10:24:55] <JT-Shop> hmm, I have a sudo cold saw
[10:25:54] <archivist_herron> sudo make the pseudo cold saw work for a living
[10:26:20] <JT-Shop> http://www.dewalt.com/tools/metalworking-multi-cutter-saws-dw872.aspx
[10:26:26] <archivist_herron> a little wax on the saw for a clean cut
[10:26:35] <JT-Shop> good idea
[10:27:41] <archivist_herron> back in the 1970's a DeWalt overarm saw was my day job cutting aluminium extrusions for tipper lorry bodies
[10:29:25] <Jymmm> Icut aluminum extrusion with my table saw, leaves a damn fine finish
[10:36:08] <ssi> JT-Shop: cut the length in half several times so you double up to a bundle, then run that bundle against a hard stop in the bandsaw
[11:04:37] <CaptHindsight> I use a 12" miter saw with a great non-ferrous blade for aluminum shapes and extrusions http://www.tenryu.com/pra.html
[11:07:00] <CaptHindsight> probably go 14" when the motor dies beyond just brush replacement
[11:08:55] <CaptHindsight> I just deburr by hand a bit if it needs it
[11:15:23] <JT-Shop> you use the TCG grind blade?
[11:16:14] <JT-Shop> Helpful Cutting Tip: Apply stick wax, bee fs wax, or other lubricant to carbide tip area frequently to prevent chip build-up in blade gullets or galling of the non-ferrous metal to the surfaces of the carbide tips.
[11:16:55] <CaptHindsight> yes, cut's through t-slot and other extrusions like butter
[11:17:40] <CaptHindsight> the blade cost more than the saw
[11:19:06] <JT-Shop> http://www.amazon.com/Tenryu-PRA-355100DN-Carbide-Tipped-Blade/dp/B000G1OWQ6
[11:19:15] <SpeedEvil> After lots of people told me new sawblades cut like butter, I cast a new sawblade out of butter.
[11:19:16] <SpeedEvil> Lies!
[11:19:18] <SpeedEvil> All lies!
[11:19:49] <CaptHindsight> I use the 12" version
[11:20:09] <JT-Shop> http://www.amazon.com/Tenryu-PRA-305100DN-Carbide-Tipped-Blade/dp/B00286TOAQ
[11:20:33] <JT-Shop> just a few more dollars for the 14" one
[11:20:44] <CaptHindsight> PRA-305100DN2
[11:22:30] <CaptHindsight> I even cut plate with it using a compound slide miter saw
[11:22:37] <JT-Shop> 5/8" arbor
[11:24:26] <CaptHindsight> I use it with an adapter
[11:24:46] * SpeedEvil wishes he had a jet cutter.
[11:24:53] <SpeedEvil> I would so try cutting steel with butter.
[11:25:08] <CaptHindsight> butter jet
[11:26:28] <CaptHindsight> butter with boron nitride
[11:27:16] <SpeedEvil> As a plus - hydraulic injection of natural oils for non-surgical enhancement.
[11:38:55] * Loetmichel states: using the first gear of the battery drill when cutting m3 threads in Pertinax(TM) saves a bit money in thrhead cutter bits...
[11:39:32] <Loetmichel> <- has killed 3 bits today, not broken but gone blue and very ductile now ;-)
[11:40:18] * SpeedEvil quacks.
[11:40:45] <SpeedEvil> you could try retempering them
[11:40:53] <Loetmichel> <- (after a dozen or so trheads in second gear) *sniff* *sniff* "that smells familliar..." *ouch, another one gone blue*
[11:41:49] <Loetmichel> i think a M3 thread cutter isnt desinged to be driven in at 2500 rpm ;)
[11:42:13] <Loetmichel> ... especially not in a heat isolating material ;-)
[11:43:33] <Loetmichel> SpeedEvil: it not worth the hassle
[11:43:45] <SpeedEvil> ah
[11:43:46] <SpeedEvil> :)
[11:43:47] <Loetmichel> If i remember correctyl one of these bits cost 7 eur
[11:44:06] <CaptHindsight> http://en.wikipedia.org/wiki/FR-2 = Pertinax?
[11:44:15] <Loetmichel> CaptHindsight: right
[11:44:46] <Loetmichel> but in 1/4" thickness
[11:44:54] <Loetmichel> made 12 of these:
[11:45:28] <Loetmichel> http://www.cyrom.org/palbum/main.php?g2_itemId=10886
[11:45:33] <Loetmichel> http://www.cyrom.org/palbum/main.php?g2_itemId=10883
[11:45:41] <Loetmichel> http://www.cyrom.org/palbum/main.php?g2_itemId=10880
[11:45:49] <Loetmichel> http://www.cyrom.org/palbum/main.php?g2_itemId=10877
[11:46:30] <Loetmichel> ... they are stacked of 6 sheets of 1/4" pertinax clad with melamin
[11:47:03] <Loetmichel> and then screwed together ;-)
[11:48:52] <Loetmichel> (we have front doors on our PCs, and a warning tweeter when the door is open and the system running, so the customers demanded a solution to put a stick in and close the door so the annoying buzzer is quiet ;-)
[11:49:05] <Loetmichel> that thing fits into an 5.25" drive slot
[11:50:43] <cradek> that is the most over-engineered solution I've ever seen
[11:50:46] <cradek> it's wonderful
[11:51:38] <Loetmichel> over engineered?
[11:51:40] <Loetmichel> why?
[11:52:18] <cradek> sidecutters on the beeper would have fixed the problem in 5 seconds -- instead you machine many cubic inches of aluminum
[11:53:49] <jdh> does anyone ever plug in a usb device the right way the first time?
[11:54:00] <cradek> half the time!
[11:54:02] <jdh> I would have assumed I'd have a 50% success rate, but it seems more like 5
[11:54:07] <cradek> haha
[11:54:08] <Loetmichel> the new ones have a 4mm steel ball and a spring in the drum and two 2.5mm holes in the bottom plate also, so it clicks in place in the inner and outer position. And a shitload of venting holes for the PC because all other slots are occupied so no more air intake otherwise ;-)
[11:54:20] <Jymmm> jdh: Sure, the drop of nail polish goes up =)
[11:54:28] <Loetmichel> for me its more like 30% success rate
[11:54:50] <Loetmichel> i dont use nail polis, i mark my drives miore permanently
[11:54:59] <Loetmichel> http://www.cyrom.org/palbum/main.php?g2_itemId=15108
[11:55:00] <Loetmichel> :-)
[11:55:25] <jdh> you need a laser engraver
[11:55:34] <Loetmichel> (tascheninhalt= contents of (trusers) pocket)
[11:55:37] <Loetmichel> +o
[11:55:55] <Loetmichel> why? the V bit works well on the mill ;-)
[11:55:56] <Jymmm> Loetmichel: WTF is the stick withthe screw terminal block?
[11:56:08] <Loetmichel> usb_> RS485
[11:56:15] <Jymmm> ah
[11:56:20] <Loetmichel> for my LinuxCNC Mill
[11:56:39] <Loetmichel> so i can use linuxCNC to command the VFD ;-)
[11:56:55] <Loetmichel> just have to mount it there... since about march or so
[11:57:01] <Jymmm> Loetmichel: I'm surprised you haven't made a bandolear (sp) for them
[11:57:02] <Loetmichel> ... its still in my pocket ;-)
[11:57:20] <Loetmichel> a WHAT?
[11:58:10] <Loetmichel> there is a slight fluctuation in my pockets: http://www.cyrom.org/palbum/main.php?g2_itemId=15032&g2_imageViewsIndex=1
[11:58:26] <Loetmichel> but all that is smewhere in my trousers
[11:58:28] <Loetmichel> ;-)
[11:58:54] <Jymmm> Loetmichel: http://acecase.com/images/P/bandoleer_rifles-01.jpg
[11:59:48] <Jymmm> Loetmichel: http://www.cuttingedgetactical.com/ProductImages/p_BDL-56.jpg
[11:59:49] <Loetmichel> ah
[12:00:05] <Loetmichel> i know that as "bandoliner"
[12:00:44] <Jymmm> Loetmichel: HERE YA GO... http://content.answcdn.com/main/content/img/getty/9/2/1834792.jpg
[12:01:02] <CaptHindsight> Loetmichel: your success rate should be 100% soon http://www.theverge.com/2013/12/4/5173686/usb-type-c-connector-specification-announced
[12:03:40] <Jymmm> "OMG It's *SO* big!" Really? WTF!!! http://www.theverge.com/2013/9/5/4696874/galaxy-note-3-usb-3-0-power-connector-explained
[12:04:08] <Jymmm> If they keep at this, it'll be so fucking small that it's gonna snap off
[12:04:20] <Loetmichel> btdt
[12:04:24] <Loetmichel> ant my note1
[12:04:35] <Loetmichel> just repaired the cable last week
[12:04:43] <Loetmichel> because the plug snapped off ;-)
[12:05:11] <Loetmichel> was a bit of work the get the snapped off part out of the phone ;-)
[12:05:47] <jdh> you shoudl make a rotating adapter for your phone like your usb stick thing.
[12:07:00] <ssi> last night I made this little pick box for my friend
[12:07:01] <ssi> https://fbcdn-sphotos-h-a.akamaihd.net/hphotos-ak-xpa1/v/t34.0-12/10660636_10100474406308462_464329254_n.jpg?oh=752503d42eb11fd9c6f4858b2175ce01&oe=5411211A&__gda__=1410397259_b81d419f361ab1af8136f7564709a5f0
[12:09:38] <Loetmichel> ssi: laser?
[12:09:41] <ssi> ya
[12:09:45] <Loetmichel> nice
[12:09:55] <ssi> Loetmichel: I have the 100W RECI tube now
[12:09:59] <Loetmichel> nice
[12:10:12] <ssi> https://pbs.twimg.com/media/BwtW8w4CQAAJDh6.jpg:large
[12:10:15] <ssi> it's a big bastard
[12:10:58] <Loetmichel> cradek: the beeper is there for a reason: the front door is part of the emi shielding. so it shouldnt do encrytping work when the door is open. hence the beeper to remind you
[12:11:23] <Loetmichel> and because the PCs are sealed with one-time-labeps: cutomer ios not able to cut the wires ;-)
[12:11:36] <Loetmichel> ( it would be enough to pull a jumper btw ;-)
[12:11:44] <Loetmichel> labels
[12:13:31] <Loetmichel> http://cordsen.com/images/CE_Media/_img_pdf/ATS-5550T-27A_eng.pdf <- these boxes, just a bit "modernized" with i7 cpus and more ram and bigger HDD
[12:16:59] <Loetmichel> ssi: MarkusBec has a 80W co2. and he lives near me so i saw that in use a few times
[12:17:10] <Loetmichel> its scary without proper glasses, though ;)
[12:19:12] <Loetmichel> http://bambuser.com/v/2270235 <- thats his lasercutter ;-)
[12:49:42] <CaptHindsight> Loetmichel: are CO2 laser tubes regulated there similar to laser pointers?
[12:49:53] <Loetmichel> no idea
[12:49:58] <Loetmichel> but i would think so
[12:50:13] <Loetmichel> its as deadly as a big laserpointer for your eyes
[12:50:18] <cpresser> Loetmichel: http://media.ccc.de/browse/conferences/mrmcd/mrmcd14/MRMCD2014_-_6027_-_de_-_tiefbaustelle_s21_-_201409061730_-_safer_spielen_mit_lasern_-_sarahj.html
[12:50:20] <Loetmichel> if not deadlier ;-)
[12:50:36] <cpresser> i have seen MarcusBec at that event, but i am not sure if he watched this talk
[12:51:29] <cpresser> as long as your doing it inside the house, the house acts as safety compartment.
[12:51:36] <CaptHindsight> http://fashionablygeek.com/wp-content/uploads/2009/12/brick-glasses.jpg
[12:52:27] <Loetmichel> cpresser: i've seen i nice sing in a laser lab at an university: "protect your remaining eye!"
[12:52:33] <Loetmichel> sign
[12:52:57] <cpresser> http://ledmuseum.candlepower.us/sixth/bsl.gif
[12:53:25] <Loetmichel> yeah, like that ;-)
[12:53:28] <cpresser> http://www.threadsquad.com/products/square/219155.png
[12:53:46] <cpresser> http://static.fjcdn.com/pictures/lasers_466f6f_308428.jpg
[13:01:09] * likevinyl is away: stalkeando gorilas punk rock!
[13:03:59] <skunkworks_> cpresser, nice video!
[13:04:08] <skunkworks_> (although I cannot speak german)
[13:41:42] <ssi> Loetmichel: it's not that bad :)
[14:30:16] <Loetmichel> *eboot
[14:30:26] <Loetmichel> *reboot
[16:03:38] <Deejay> good night
[16:10:01] <asah> AC motor brake schematics help please!
[16:10:03] <asah> https://www.dropbox.com/s/03ujc2rnz0xdqlv/maho_400e_schematics_10.png?dl=0
[16:10:18] <asah> 1Y1 is the brake setup on the motor
[16:10:36] <asah> also from the motor side: https://www.dropbox.com/s/o3seghxeooyyxf6/maho_400e_schematics_03.png?dl=0
[16:10:54] <asah> I should be applying 110v to release brake no?
[16:12:32] <asah> not releasing when I apply voltage.
[16:12:39] <asah> perhaps I am applying to wrong terminals.
[16:13:37] <asah> son schematics 10.png, what are the symbols above “motor brake” one looks like a variable resistor, the other near the ground symbol I don’t rec.
[16:20:12] <asah> nevermind.
[16:20:15] <asah> got it.
[16:56:13] <maZer`-> hi all
[16:56:25] <maZer`-> i got a problem with my machine i cannot solve since 2 months :(
[16:57:11] <maZer`-> every time my axis changes the direction i got a high oscilation in hal scope
[16:57:21] <maZer`-> can someone tell me what this can be?
[17:00:34] <maZer`-> it feels like a backlash, but doesnt matter what value of backlash i use, the f-error goes up on every direction change
[17:00:49] <JT-Shop> servo?
[17:01:58] <maZer`-> yes
[17:02:00] <maZer`-> is dc servo
[17:02:19] <Loetmichel> hmmm, it seems i didnt need to buy a new psu... a cap at the P8 adapter stabilizes it enough for no further psu shutoffs... it still chirps when massive load, though ;-) -> http://www.cyrom.org/palbum/main.php?g2_itemId=15268
[17:06:29] <maZer`-> nobody idea ? :(
[17:10:37] <JT-Shop> did you tune the axes with halscope?
[17:10:44] <maZer`-> yes i did
[17:10:47] <maZer`-> also i tried to do
[17:11:08] <JT-Shop> did you get the following error down to level that works for you?
[17:11:20] <maZer`-> yes i did
[17:11:29] <Tom_itx> PID could cause oscilations couldn't it?
[17:11:32] <maZer`-> also the line is very good until i change direction
[17:11:42] <maZer`-> my current stup is
[17:11:49] <maZer`-> p=40, i=0, d=0,8
[17:13:31] <maZer`-> and FF1=1.1 FF2=0.01
[17:17:14] <maZer`-> But im a really n00b in the cnc things, its my first machine and i cannot give warranty that my values are good for my machine :(
[17:17:26] <asah> mazer, can you share a screenshot of your halscope trace?
[17:18:10] <JT-Shop> you don'r use backlash for a servo machine, you should have almost 0 backlash or your ballscrews or thrust bearings are shot
[17:19:22] <JT-Shop> maZer`-, are your drives velocity or torque drives?
[17:20:04] <JT-Shop> velocity tut http://www.gnipsel.com/linuxcnc/tuning/servo.html
[17:20:19] <maZer`-> yes
[17:20:22] <maZer`-> i can do screenshot
[17:20:40] <maZer`-> yes i used your tutorial
[17:20:56] <maZer`-> and i tuned based on your tutorial
[17:25:14] <maZer`-> http://www.directupload.net/file/d/3741/8uj2doe2_png.htm
[17:25:59] <maZer`-> http://www.directupload.net/file/d/3741/26hlfdqd_png.htm
[17:27:19] <JT-Shop> use http://imagebin.org/ so we don't have to look at all the spam and ads
[17:27:38] <maZer`-> ok should i reupload?
[17:28:16] <JT-Shop> I closed directupload before I got to your screenshot
[17:28:21] <maZer`-> http://imagebin.org/319222
[17:28:31] <JT-Shop> to many popup windows and crap on there
[17:28:51] <maZer`-> http://imagebin.org/319223
[17:29:02] <maZer`-> yes i see but didnt know about imagebin before :)
[17:29:10] <JT-Shop> is the spike a direction reversal?
[17:30:33] <maZer`-> yes
[17:30:49] <maZer`-> and i got always a spike if direction is changed :(
[17:31:15] <JT-Shop> that's a lot of error
[17:31:31] <JT-Shop> you might revisit http://www.gnipsel.com/linuxcnc/tuning/servo.html
[17:31:47] <JT-Shop> it doesn't look tuned to me but hey I'm just a beginner
[17:32:08] <maZer`-> yes but i tried all i see in your link :(
[17:32:26] <maZer`-> without any success
[17:32:42] <maZer`-> P - Tune to maximum stiffness without oscillation.
[17:33:33] <maZer`-> i can use 200 as p value and still have not really high oscilation :(
[17:33:42] <maZer`-> what p value i should start?
[17:35:51] <JT-Shop> keep turning it up till you find what is too much
[17:36:00] <JT-Shop> 0 everthing else first
[17:36:36] <JT-Shop> maybe you skipped this line "Adjust P until the axis oscillates after a jog then back off till stable."
[17:40:00] <maZer`-> ahm
[17:41:52] * JT-Shop notices the pile of parts to machine is down to 4 and it's 5 o'clock here
[18:13:02] <Tom_itx> JT-Shop, it's always 5 o'clock somewhere...
[18:13:14] * Tom_itx hands JT-Shop a cold one
[18:22:31] <JT-Shop> thanks Tom_itx
[18:26:37] <Tom_itx> it's been a monday
[18:39:10] <JT-Shop> been busy here too
[18:39:18] <JT-Shop> last part is in the lathe YEA!
[18:42:46] <zeeshan> hey guys
[18:42:52] <zeeshan> what kind of hand cleaner do you use?
[18:42:58] <zeeshan> i've used a bunch of different kinds
[18:43:03] <zeeshan> but im trying this new one and its awesome!!
[18:43:19] <zeeshan> http://vertexequipment.com/cart/images/P/Hand%20Cleaners.JPG
[18:43:24] <zeeshan> has no petroleum products in it
[18:43:26] <zeeshan> no pumice
[18:43:30] <zeeshan> and it works good!
[18:46:22] <JT-Shop> I use squirrel oil... you really have to squeeze them to get the oil out
[18:46:49] <zeeshan> rofl
[18:47:06] <PetefromTn_> JT-Shop Hey man I got a question for you do you mind a PM?
[18:48:52] <JT-Shop> np
[19:01:33] <XXCoder> JT-Shop: you doing it wrong, their fat is oil. Just cook em as steaks and oil that come out is squirrel oil. good eatin' too lol
[19:04:27] <JT-Shop> LOL
[19:04:39] <JT-Shop> I guess I can retire the wringer then
[19:05:14] <XXCoder> yep lol
[19:12:02] <XXCoder> crazy skills https://www.youtube.com/watch?v=Ilax16LIMJo
[19:32:05] <CaptHindsight> 35.5 × 25.0 × 3.9 mm (1.4 × 1.0 × 0.15 inches) max Edison board https://communities.intel.com/servlet/JiveServlet/previewBody/23139-102-2-27268/edison_PB_331179-001.pdf so small you might forget where you left it
[19:33:18] <CaptHindsight> why is the IO board (with not much IO) so much larger?
[19:33:27] <CaptHindsight> http://www.intel.com/content/www/us/en/do-it-yourself/edison.html
[19:35:32] <CaptHindsight> 12 GPIO and SPI, I wonder how fast they toggle read/write/read
[20:06:07] <PCW> if its anything like the Galileo, not very fast because its I2C
[20:37:18] <tjtr33> i thought singapore had a lot of rules, but in taiwan, they are even tougher http://ibin.co/1ZnhN6ryWLVN http://ibin.co/1ZnhgmORYvpk
[20:37:45] <DrLEcter> hi just for learning purposes somebody already done some cheap project like this youtube/watch?v=Z0vQIaUZGu4
[20:49:19] <tjtr33> its a good cheap intro to a cnc system. just a few old cd drives, maybe linuxcnc and a parport drive with cheap chip drivers.
[20:49:20] <tjtr33> BUT its really wiggly, and that part may be a bad thing to label as 'ok' in any way to a student of a real discipline.
[20:54:57] <DrLEcter> ok I understand you about label as 'ok' project
[20:56:27] <tjtr33> I've thought about doing that exact for my 5 yr old nephew though.
[20:59:51] <tjtr33> this is simple, and fun too, just 2 steppers, string and a solenoid to control the spray paint http://www.youtube.com/watch?v=V4aXw0Zotzw
[21:04:29] <DrLEcter> jaja graffiti robot rocks
[21:05:08] <tjtr33> make it really big, and put a seat instead of spray can ... wheeeeee!
[21:06:06] <DrLEcter> but don´t let de subway go jaja!!
[21:06:48] <asah> anyone have advice about using mesa 24v io to control a device (vfd) expecting closed contact switching as opposed to 24v input.
[21:06:49] <asah> ?
[21:07:42] <asah> should I use small relays?
[21:11:23] <asah> unless serial control is working well for some people?
[21:13:09] <jdh> My plan is to use serial-485 for speed, but discrete for start/stop
[21:13:33] <zeeshan> asah what vfd model
[21:13:53] <asah> hy, cheep. =)
[21:14:01] <zeeshan> jdh why not keep them both on serial
[21:14:10] <zeeshan> and just have e-stop run through discrete
[21:14:32] <jdh> 'because'
[21:14:42] <zeeshan> tell me!
[21:14:42] <asah> is serial reliable in linuxcnc for vfd control?
[21:14:44] <zeeshan> thats how i have it
[21:14:54] <zeeshan> asah it's been working for me
[21:15:03] <zeeshan> it's all about how you implement it
[21:15:20] <zeeshan> my vfd has a charge pump kind of deal
[21:15:25] <zeeshan> if linuxcnc crashes, or the computer shuts
[21:15:32] <zeeshan> and the signal is broken
[21:15:40] <zeeshan> the vfd goes in fault mode and everything shuts down
[21:15:57] <zeeshan> most vfds have this type of thing
[21:16:26] <asah> I like the reliability of just going with the logic.
[21:16:35] <asah> ie, digi io.
[21:16:41] <asah> for now.
[21:17:02] <asah> later, when I care more about other features, I can go to serial.
[21:17:18] <asah> but it looks like I can’t just drive the thing with 24v
[21:20:49] <asah> guess I have to run to radio shack… back in a bit. =)
[21:27:25] <jdh> what mesa IO?
[21:28:19] <jdh> and c'mon... how many people don't have at least 10 different kinds of relays laying around.
[21:29:00] <jdh> onlinemetals.com 25% off any* online order $100 or more.
[21:33:10] <zeeshan> !
[21:33:13] <zeeshan> interesting...........
[21:33:22] <zeeshan> starrett digital mics are made in china
[21:33:33] <zeeshan> http://i.ebayimg.com/00/s/NjAwWDgwMA==/z/qnMAAOSw-jhUDviZ/$_35.JPG
[21:39:47] <WalterN> hmm
[21:40:04] <WalterN> I cant seem to get envelope deformation to work?
[21:41:29] <WalterN> and, can I do it do a group of objects? like say I'm making a wall with a bunch of stuff on it and want to bend everything so it looks better from a certain perspective
[21:42:26] <WalterN> derp
[21:42:30] <WalterN> wrong chat
[21:42:37] <WalterN> next channel up...
[21:42:47] * WalterN uses the elevator
[21:47:12] <asah> jdh, ha! I have relays on mill I could use, but… you know, I want to have some solid state ones.
[21:47:25] <asah> the SSRs I have will only switch AC.
[21:49:21] <asah> the mesa io is a 7i71
[21:49:33] <asah> I also have a 7i83
[21:51:42] <SpeedEvil> Almost al SSRs wil only switch AC off
[21:53:47] <asah> the small ones I just bought are 15v max! =(
[21:53:52] <asah> ack.
[22:26:22] <tjtr33> check if you need just a contact closure, ssr is not 'just a contact closure', some things need no power, just a connection between 2 pins
[22:27:11] <tjtr33> urf dc ssr may be a contact closure, the ac are not
[22:32:53] <pcw_home> the 7I83 enable outputs are DC contact closure equiv
[22:45:30] <asah> ok, thanks peter.
[22:45:47] <asah> I am wiring up these relays, they seem to have worked at 24v.
[22:45:56] <asah> we shall see how long they last.
[22:46:28] <asah> I don’t have the 7i83 involved in the mill yet, but I suppose I could add it to the mix, and use the analog outs for spindle speed.
[22:46:42] <asah> spun the spindle today for the first time!
[22:47:15] <asah> big win for the single phase folks.
[22:48:00] <asah> 240V single phase -> transformer to step up to 380V single phase. -> VFD -> three phase.
[22:48:12] <asah> driving the ac induction motor.
[22:48:23] <asah> looked good on paper. nice to see it work out in reality.
[22:49:02] <zeeshan> nice asah
[22:49:14] <zeeshan> theres some vfds that'll step up the voltage also
[22:49:49] <zeeshan> ive been looking at running a 110V single phase in 1HP to 220V 3~ 1HP
[22:49:58] <zeeshan> well its actually not in @ 1HP
[22:50:03] <zeeshan> it draws a lot more current
[22:50:16] <zeeshan> i think sqrt3 times!
[22:55:20] <asah> sounds like a nice clean solution zeeshan.
[22:55:44] <zeeshan> you avoid the humming transformer!
[22:55:44] <zeeshan> :D
[22:55:50] <asah> prob quite a bit more expensive than my el cheapo solution. we will see how long the HY lasts.
[22:56:26] <asah> Ill scour ebay in the meantime for a more pro VFD… see what pops out.
[22:58:15] <zeeshan> if you dont mind me asking
[22:58:22] <zeeshan> how much did the 240V to 380V xformer cost
[22:58:26] <zeeshan> and how many watts
[22:58:37] <asah> the transformer came with the mill. =)
[22:58:49] <zeeshan> oh
[22:58:54] <asah> I have another one lying around.
[22:59:00] <zeeshan> cause when i was looking for 220V to 575V transformers
[22:59:03] <zeeshan> they're stupid expensive
[22:59:05] <zeeshan> even at 5HP
[22:59:23] <zeeshan> i couldnt find them on the used market either
[22:59:27] <asah> where are you located?
[22:59:34] <zeeshan> near toronto , canada
[22:59:35] <asah> they are super heavy so shipping is rough..
[22:59:38] <asah> =)
[22:59:53] <asah> otherwise I could sell it cheap. =)
[22:59:57] <zeeshan> hehe
[23:00:29] <asah> it came off an industrial robot from detroit.
[23:00:54] <zeeshan> nice
[23:01:06] <zeeshan> i'd like to own an abb robot
[23:01:07] <asah> they auction off old robots (motoman, fanuc) for cheap
[23:01:07] <zeeshan> for home use
[23:01:24] <asah> and those cabs have all kinds of great automation parts in them.
[23:01:32] <zeeshan> cabs?
[23:01:35] <zeeshan> cabinets?
[23:01:39] <asah> and usually have isolation tranformers.
[23:01:42] <asah> cabinets.
[23:01:53] <zeeshan> my last job at eaton
[23:01:53] <asah> colloqual for us robot nerds.
[23:02:04] <zeeshan> my boss hooked me up with a lot of stuff when i was done my coop
[23:02:06] <zeeshan> but no robots
[23:02:23] <zeeshan> only vfds , ssr and some contactors and switches
[23:02:38] <zeeshan> these guys used to throw away anything used for lab testing purposes
[23:02:44] <zeeshan> after doing product evaluation
[23:02:45] <zeeshan> ..!
[23:03:59] <asah> nice to have the money to pull that off.=)
[23:11:15] <SpeedEvil> http://www.ebay.co.uk/itm/321507497743?_trksid=p2055119.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT
[23:11:34] <zeeshan> lol
[23:11:35] <zeeshan> !
[23:11:40] <zeeshan> too bad its in uk
[23:11:49] <zeeshan> that would be so bad ass to own.
[23:12:43] <asah> I have two. =)
[23:12:58] <SpeedEvil> asah: two of similar arms?
[23:13:06] <MC500> I put a negitive number in my P of the PID loop in the tuning app with all other values 0, the axis now moves more or less correctly, somthing must be backwards.. anyone have an idea?
[23:13:07] <SpeedEvil> Or do you mean the bio ones
[23:13:11] <asah> I have a large arm, a fanuc 420
[23:13:18] <zeeshan> how much did you pay
[23:13:28] <asah> and a very small motoman.
[23:13:36] <asah> motoman was $500
[23:13:40] <asah> fanuc was free
[23:13:41] <zeeshan> thats not bad
[23:13:48] <zeeshan> i really want one for welding.
[23:14:08] <asah> I paid more in shipping for the motoman.
[23:14:09] <asah> =)
[23:14:16] <SpeedEvil> how much would the above arm weigh? I'm guessing 300kg?
[23:14:18] <asah> but I got a bunch of really nice cable.
[23:14:37] <asah> my fanuc is around 2500-3000 pounds
[23:14:41] <zeeshan> asah are you in detroit?
[23:14:46] <asah> california
[23:14:48] <zeeshan> oh
[23:14:48] <pcw_home> MC500: if the DRO reads the correct direction the PID output device scale is backwards
[23:15:13] <MC500> pcw_home is that a setting or a cable?
[23:15:22] <asah> the motoman is more like 100 pounds.
[23:16:08] <pcw_home> MC500: what drives and what controller hardware?
[23:17:01] <asah> the motoman used to live its life at the huffy factory making bicycles.
[23:17:13] <MC500> stg isa card, baldor amplifiers, baldor A/C servo motors quad linear scales and one rotary scale hooked directly to the axis not motor
[23:17:41] <pcw_home> does the DRO read correctly?
[23:17:46] <MC500> yes
[23:18:38] <MC500> well... rotary... so + is right - is left but no home so I guess im not sure
[23:18:44] <pcw_home> so you need to reverse the DAC outputs in your HAL file
[23:18:55] <MC500> ok will do thank you
[23:19:29] <pcw_home> not sure how thats done for STG (probably some DAC scale parameter needs to have ist sign changed)
[23:25:01] <MC500> sorry got disconnected is it stg_motion.hal
[23:25:27] <MC500> net Aoutput => stg.3.dac-value
[23:27:04] <pcw_home> yeah that the DAC output but what sets the DAC scale?
[23:27:23] <MC500> yea how do I reverse it
[23:27:52] <MC500> oh Im not sure what sets the DAC scale
[23:27:55] <MC500> what file is that in
[23:28:23] <pcw_home> probably there or the ini file
[23:29:13] <MC500> dac is not mentioned in the stg.ini file
[23:29:36] <pcw_home> output scale?
[23:31:12] <MC500> INPUT_SCALE = 1000 OUTPUT_SCALE = 1 OUTPUT_OFFSET = 0
[23:31:17] <MC500> thats in the .ini
[23:31:57] <pcw_home> might try
[23:31:58] <pcw_home> OUTPUT_SCALE = -1
[23:32:29] <MC500> k will do thank you
[23:32:50] <pcw_home> beware of runaways!