#emc | Logs for 2011-05-13

[00:00:01] <ssi> l0st1nsp4c3: yea it'll be fine
[00:00:34] <Jymmm> you could pull it you if you want to
[00:01:09] <archivist> ssi top middle is another tool, straight sided gear mill, A is leaning, B not yet fitted
[00:02:07] <ssi> what machine are you using to hob?
[00:02:14] <ssi> is it a dedicated hobber?
[00:03:09] -!- theorbtwo has quit [Read error: Operation timed out]
[00:04:00] -!- theorbtwo [theorbtwo!~theorb@] has joined #emc
[00:06:45] <archivist> that was a hobber at work, i didnt get thet to come home
[00:06:46] -!- emcrules_laptop [emcrules_laptop!~IceChat77@CPE001310e6c94f-CM001bd71cb794.cpe.net.cable.rogers.com] has joined #emc
[00:06:50] <ssi> aw
[00:06:59] -!- skunkworks1 [skunkworks1!~skunkwork@184-158-19-92.dyn.centurytel.net] has joined #emc
[00:07:02] <archivist> I did get a smaller one
[00:07:16] <ssi> I have too many different things to work on
[00:07:20] <skunkworks1> so - does anyone know how the renishaw pickup works?
[00:07:22] <ssi> I don't know where to focus :(
[00:07:34] <toastydeath> skunkworks?
[00:07:40] <JT-Shop> skunkworks1: it's magic
[00:07:46] * skunkworks1 got a renshaw probe knockoff
[00:08:07] <skunkworks1> JT-Shop: crap
[00:08:10] <skunkworks1> ;)
[00:08:20] <toastydeath> it's not really a pickup, it's just a switch
[00:08:37] <andypugh> 6 ball bearings and 3 pins.
[00:09:03] <emcrules_laptop> its actually quite simple
[00:09:13] <skunkworks1> yes - I know that end. I am taking about the magic potted part that contacts the sensor on the machine.
[00:09:23] <toastydeath> oh
[00:09:34] <toastydeath> no clue, sry
[00:09:36] <skunkworks1> heh
[00:09:47] <emcrules_laptop> the reader head?
[00:09:51] <skunkworks1> yes
[00:09:58] <emcrules_laptop> mp? type
[00:10:27] <emcrules_laptop> optical or radio
[00:10:34] <skunkworks1> not really sure. (And I don't know if it is exactly the same)
[00:10:37] <skunkworks1> I think radio
[00:10:38] <skunkworks1> hold on
[00:11:24] <emcrules_laptop> i just finished installing one on a robot
[00:13:07] <skunkworks1> it is actually one of these - but it seems to be some sort of renisaw knockoff http://cgi.ebay.com/BIG-CAT-50-Zero-Sensor-type-ZS1-Spindle-Probe-/310098398900?pt=BI_Tool_Work_Holding&hash=item48334e0eb4
[00:13:13] <emcrules_laptop> I cheated on my mill and use a cmm probe tip due to size. It's hard wired right now but was thinking i could mod a rf kefob and relay kit to make it wireless
[00:13:36] <skunkworks1> we have it appart - so if all else fails - the actual sensor head seem to work... (simple on - off)
[00:14:38] -!- andypugh [andypugh!~andy2@cpc2-basl1-0-0-cust1037.basl.cable.virginmedia.com] has parted #emc
[00:18:29] <emcrules_laptop> are there any ir eyes on it
[00:18:56] <emcrules_laptop> spot for a battery?
[00:19:03] <skunkworks1> nope
[00:19:16] <skunkworks1> I figured it was some sort of inductive thing. but just guessing
[00:19:39] <skunkworks1> http://www.electronicsam.com/images/KandT/probe/DSCF1507%5b1%5d.jpg
[00:20:41] -!- stormlight [stormlight!~jasonandt@c-71-202-13-101.hsd1.ca.comcast.net] has joined #emc
[00:21:08] <emcrules_laptop> where did the wires connect?
[00:22:17] <skunkworks1> getting another picture ;)
[00:22:41] <emcrules_laptop> oh on the pickup of the holder right
[00:23:13] <skunkworks1> correct
[00:23:42] <skunkworks1> this is the other end http://www.electronicsam.com/images/KandT/probe/DSCF1508.jpg
[00:23:53] <skunkworks1> what the probe is wired into
[00:24:09] <emcrules_laptop> yeah then i would expect its inductive
[00:25:02] <skunkworks1> can't find any info on it so far.
[00:25:27] <emcrules_laptop> can you load the holder in the machine in the same spot every time
[00:26:20] <skunkworks1> yes
[00:26:47] <skunkworks1> we have keyed tooling - plus we can spindle lock it
[00:26:59] <emcrules_laptop> maybe 86 the pickup and use a mechanical connection with pogo pins or something
[00:27:08] <skunkworks1> that is the plan for now.
[00:28:32] <emcrules_laptop> http://www.renishaw.com/en/imm-imp-inductive-transmission-modules--6156
[00:31:40] -!- skunkworks1 has quit [Ping timeout: 250 seconds]
[00:32:03] <Tom_itx> Connor
[00:33:12] <Tom_itx> http://tom-itx.dyndns.org:81/~webpage/eagle/pendant_lcd_sch.png
[00:35:29] -!- skunkworks1 [skunkworks1!~skunkwork@184-158-19-92.dyn.centurytel.net] has joined #emc
[00:35:47] <skunkworks1> wow - got disconnected
[00:36:12] <emcrules_laptop> did you check out that renishaw link?
[00:36:31] <skunkworks1> missed it - could you re-paste it?
[00:36:37] <emcrules_laptop> http://www.renishaw.com/en/imm-imp-inductive-transmission-modules--6156
[00:39:56] <skunkworks1> neat - might just have to find one to try
[00:40:36] <skunkworks1> They don't go into the nuts and bolts of it. - darn :)
[00:41:30] <emcrules_laptop> did you check out the pdf datasheet
[00:41:46] -!- stormlight has quit [Quit: stormlight]
[00:43:06] <skunkworks1> yes - quickly - pretty much how to mount and spacing
[00:46:11] <l0st1nsp4c3> hey guys i'm pretty sure i got this right but i'm just gonna ask on my g540 i have phase A and phase /A (motor has A+ and A-) i use phase A for A and phase /A for A- and same for Phase B?
[00:46:37] <JT-Shop> yep
[00:47:02] <l0st1nsp4c3> just so i don't have to rewire in case i've inverted it and it turns backwards lol
[00:48:30] <JT-Shop> to reverse just invert the direction pin
[00:50:51] -!- mhaberler has quit [Quit: mhaberler]
[00:55:40] <JT-Shop> dang aluminum inserts work well with delrin too
[00:56:26] <emcrules_laptop> is that a bad thing?
[00:58:21] -!- pjm [pjm!~pjm@uhfsatcom.plus.com] has joined #emc
[00:59:07] <JT-Shop> nope
[01:00:27] <emcrules_laptop> keen thread inserts work well in delrin as well
[01:03:32] <JT-Shop> Sweet! the pickup is going to be awesome now
[01:04:32] -!- theorbtwo has quit [Ping timeout: 276 seconds]
[01:05:08] <emcrules_laptop> JT-Shop found a thread milling macro http://pastebin.ca/2057661 think i might try it out with ngcgui
[01:05:50] <JT-Shop> Sweet! from HAAS
[01:06:03] <emcrules_laptop> yep
[01:06:08] <JT-Shop> lakeshore carbide has one too
[01:06:19] <emcrules_laptop> cool i will look
[01:06:32] <JT-Shop> I'll get the link
[01:08:07] <Valen> why turn look ahead off?
[01:08:31] <JT-Shop> cause HAAS can't keep up with EMC :)
[01:08:37] <Valen> lol
[01:08:37] <emcrules_laptop> lol
[01:09:01] <JT-Shop> hmmm not loading for me http://www.lakeshorecarbide.com/
[01:09:13] <Valen> seems dead
[01:09:29] <emcrules_laptop> same here!
[01:09:37] <JT-Shop> my favorite place to get end mills
[01:09:54] <emcrules_laptop> work's mine lol
[01:10:00] <JT-Shop> oh well when it comes back on they have a couple different thread milling g codes
[01:10:53] <Tom_itx> werks fer me
[01:11:21] * JT-Shop carries another bundle of itch up to the attic
[01:11:22] <JT-Shop> just came up for me
[01:11:42] <JT-Shop> http://www.lakeshorecarbide.com/technicalresources.aspx
[01:12:37] <emcrules_laptop> got it
[01:15:33] -!- l0st1nsp4c3 has quit [Ping timeout: 252 seconds]
[01:15:42] <emcrules_laptop> thats must of been where the program on the wikki came from
[01:18:04] <JT-Shop> could be
[01:19:01] <Gensor> pwc: hello?
[01:19:31] <Gensor> whoops.... pcw?
[01:20:47] <JT-Shop> it's pcw_home today
[01:21:41] * JT-Shop listens to Cheap Day Return... a classic
[01:23:20] <Valen> anybody have links to a cheap thread mill? ones I've seen look like a gear cutter
[01:23:47] <emcrules_laptop> you mean single point?
[01:24:15] <Valen> i probably do lol
[01:25:12] <emcrules_laptop> sometimes i just use a ground carbide boring bar
[01:33:42] -!- stormlight [stormlight!~jasonandt@c-71-202-13-101.hsd1.ca.comcast.net] has joined #emc
[01:34:59] -!- skunkworks_ [skunkworks_!~chatzilla@str-bb-cable-south2-static-6-78.dsl.airstreamcomm.net] has joined #emc
[01:36:54] <Valen> I was after something a little more precise than that
[01:37:05] <Valen> or easily precise anyway
[01:37:21] <emcrules_laptop> kbc?
[01:37:48] <emcrules_laptop> mcmaster carr?
[01:42:50] <skunkworks_> I really need to try ngcgui - this is cool too http://www.youtube.com/watch?v=lnytFtjeTfs
[01:43:11] <Valen> i'm an ecil furriner, cant buy from mcmaster
[01:43:22] <emcrules_laptop> ha ha ha thats mine
[01:44:35] <skunkworks_> emcrules_laptop: great! nnice job!
[01:46:00] <emcrules_laptop> thanks!!! ngcgui is simple and easy to use.
[01:46:32] <skunkworks_> logger[psha]:
[01:49:25] <jdhNC> any avr/arduino people?
[01:49:36] <Tom_itx> maybe
[01:49:59] <Tom_itx> more avr than arduino
[01:50:02] -!- nicko has quit [Ping timeout: 276 seconds]
[01:50:20] <jdhNC> avr question... do you know how low you can set AREF for the analog inputs?
[01:50:35] <Tom_itx> i have one working on internal reference at 1.1v
[01:50:59] <Tom_itx> i think it varies from chip to chip on the reference v
[01:51:12] <jdhNC> 1.024v would be nice, 0.1024 would e beter
[01:51:22] <Tom_itx> not that low i doubt
[01:51:49] <jdhNC> I have a sensor that puts out 10-100mV
[01:52:05] <Tom_itx> you might need an op amp
[01:52:26] <jdhNC> that would lose the precision
[01:52:40] <jdhNC> teh 10 bits is enough, if they are all in range
[01:53:26] <Tom_itx> avr adc aren't the best
[01:54:16] <Tom_itx> anything with mixed signals won't be
[01:59:35] <jdhNC> I have them hooked up directly to some 0-5v 16bit ADC's via i2c now but want to simplify
[02:01:48] -!- skunkworks_ has quit [Ping timeout: 240 seconds]
[02:04:20] -!- pjm__ [pjm__!~pjm@uhfsatcom.plus.com] has joined #emc
[02:04:22] -!- theorbtwo [theorbtwo!~theorb@] has joined #emc
[02:04:59] -!- pjm has quit [Ping timeout: 260 seconds]
[02:06:01] <Tom_itx> how much current do the sensors need?
[02:06:51] <jdhNC> none, it's a galvanic cell, puts out 10-100mV, needs a 10k load
[02:13:41] -!- Tom_L [Tom_L!~Tl@unaffiliated/toml/x-013812] has joined #emc
[02:14:03] <Tom_L> http://www.atmel.com/dyn/resources/prod_documents/doc2559.pdf
[02:14:07] <Tom_L> dunno if that will help or not
[02:16:53] -!- pjm__ has quit [Ping timeout: 276 seconds]
[02:18:51] -!- stormlight has quit [Quit: stormlight]
[02:20:18] <jdhNC> heh... I don't know if it helps either
[02:20:27] -!- pjm [pjm!~pjm@uhfsatcom.plus.com] has joined #emc
[02:21:09] <jdhNC> I don't know where I would get a stable low voltage source for the AREF either
[02:21:28] <Tom_itx> voltage divider
[02:21:36] -!- ries [ries!~ries@] has joined #emc
[02:22:26] <jdhNC> too bad you can't use a voltage divider on the internal ref
[02:22:56] <Tom_itx> it's possible it has an internal calibration bit
[02:23:46] <Tom_L> http://www.atmel.com/dyn/resources/prod_documents/doc8060.pdf
[02:25:39] <Tom_itx> that's more on liion cell measurement
[02:26:07] <jdhNC> they should make one with half as many ADC's with a little more resolution
[02:26:33] <Tom_itx> some may be 12bit
[02:26:42] <jdhNC> haven't seen any
[02:27:32] -!- emcrules_laptop has quit [Quit: Light travels faster then sound, which is why some people appear bright, until you hear them speak]
[02:27:35] <jdhNC> there are cheap 1.025vdc voltage reference chips
[02:28:12] <jdhNC> 1mV res is about the minimum I need and I bet the LSB isn't really useful on these
[02:28:29] <Tom_itx> xmega has 12bit
[02:28:54] <Tom_itx> i've heard they've had problems with xmega adc though
[02:29:57] <jdhNC> I guess I'll stick with an external ADC
[02:36:27] -!- rooks has quit [Quit: So long, and thanks for all the fish.]
[03:32:55] -!- mikegg [mikegg!~mike@c-71-56-61-208.hsd1.ga.comcast.net] has joined #emc
[04:05:29] <Tom_itx> Connor, tentative board layout for the lcd interface to the pendant: http://tom-itx.dyndns.org:81/~webpage/eagle/pendant_lcd_brd.png
[04:06:00] <Tom_itx> needs some cleanup
[04:06:07] -!- stormlight [stormlight!~jasonandt@c-71-202-13-101.hsd1.ca.comcast.net] has joined #emc
[04:06:07] -!- Tom_L has quit [Read error: Connection reset by peer]
[04:43:26] <Connor> Tom_itx: Your using surface mount..
[04:44:41] <Connor> Switch Out? That for the switches ?
[04:44:47] <Connor> like pause, run, etc ?
[04:45:43] <Connor> and you got ADC0 and ADC1 for the encoder?.. I was using them on pins 2 & 3
[04:45:51] <Connor> interrupt based.
[05:05:14] -!- WesBaker has quit [Ping timeout: 276 seconds]
[05:06:41] -!- MattyMatt_ has quit [Quit: ⊚)(⊚]
[05:10:14] -!- ve7it has quit [Remote host closed the connection]
[05:12:52] <awallin> nice hexapod, triaglide vids...
[05:27:52] -!- stormlight has quit [Quit: stormlight]
[05:28:29] -!- toastyde1th [toastyde1th!~toast@c-69-140-223-139.hsd1.md.comcast.net] has joined #emc
[05:29:14] -!- Gensor555 [Gensor555!Gensor@] has joined #emc
[05:30:01] -!- Gensor has quit [Ping timeout: 252 seconds]
[05:31:55] -!- toastydeath has quit [Ping timeout: 260 seconds]
[05:42:03] -!- JT-Shop has quit [Read error: Connection reset by peer]
[05:42:37] -!- JT-Shop [JT-Shop!~chatzilla@216-41-156-49.semo.net] has joined #emc
[05:54:43] -!- awallin_ [awallin_!~quassel@2001:708:110:1020:224:7eff:feda:7c7d] has joined #emc
[05:56:54] -!- mhaberler [mhaberler!~mhaberler@extern-184.stiwoll.mah.priv.at] has joined #emc
[06:31:27] -!- e-jones [e-jones!~jkastner@nat/redhat/x-emorgmsrpjmjaacy] has joined #emc
[06:46:02] -!- vladimirek [vladimirek!~vladimire@bband-dyn166.178-41-220.t-com.sk] has joined #emc
[06:54:27] -!- pjm__ [pjm__!~pjm@uhfsatcom.plus.com] has joined #emc
[06:57:50] -!- pjm__ has quit [Client Quit]
[06:57:54] -!- pjm has quit [Ping timeout: 264 seconds]
[07:06:44] -!- capricorn_one has quit [Remote host closed the connection]
[07:07:08] -!- JustinXJS [JustinXJS!~Justin@c-98-232-177-150.hsd1.or.comcast.net] has joined #emc
[07:14:14] -!- mhaberler has quit [Quit: mhaberler]
[07:17:56] -!- mhaberler [mhaberler!~mhaberler@imac.stiwoll.mah.priv.at] has joined #emc
[07:17:58] -!- mhaberler_ [mhaberler_!~mhaberler@macbook.stiwoll.mah.priv.at] has joined #emc
[07:24:26] -!- emcrules_mill has quit [Read error: Operation timed out]
[07:27:23] -!- emcrules_mill [emcrules_mill!~jp1@CPE001310e6c94f-CM001bd71cb794.cpe.net.cable.rogers.com] has joined #emc
[07:59:16] -!- psha [psha!~psha@] has joined #emc
[08:01:21] -!- e-jones has quit [Quit: Ex-Chat]
[08:10:54] -!- e-jones [e-jones!~jkastner@nat/redhat/x-wjycmzzoxjnuqjkf] has joined #emc
[08:19:33] <Tom_itx> Connor, me too
[08:19:38] <Tom_itx> pin change interrupts
[08:21:54] <Tom_itx> instead of int0 int1
[08:28:33] -!- nullie [nullie!~nullie@dhcp249-214.yandex.net] has joined #emc
[08:43:45] -!- Guest763 [Guest763!~Guest763@host202-194-static.119-2-b.business.telecomitalia.it] has joined #emc
[08:47:54] -!- Guest763 has quit [Client Quit]
[10:00:57] -!- elmo40 [elmo40!~Elmo40@CPE0017ee09ce6d-CM001bd7a89c28.cpe.net.cable.rogers.com] has joined #emc
[10:58:19] <The_Ball> emcrules_mill, sweet probe, what kind is it?
[11:05:24] -!- WesBaker [WesBaker!~wes@] has joined #emc
[11:16:40] -!- mhaberler has quit [Quit: mhaberler]
[11:16:40] mhaberler_ is now known as mhaberler
[11:21:29] -!- mhaberler has quit [Ping timeout: 260 seconds]
[11:45:29] -!- Valen has quit [Quit: Leaving.]
[11:51:49] -!- servos4ever [servos4ever!~chatzilla@173-87-55-88.dr01.hnvr.mi.frontiernet.net] has joined #emc
[12:42:59] -!- skunkworks_ [skunkworks_!447329d2@gateway/web/freenode/ip.] has joined #emc
[12:52:16] -!- toastyde1th has quit [Quit: Leaving]
[13:19:12] -!- JustinXJS3 [JustinXJS3!~Justin@c-98-232-177-150.hsd1.or.comcast.net] has joined #emc
[13:22:13] -!- JustinXJS has quit [Ping timeout: 240 seconds]
[13:24:01] -!- JT-Shop has quit [Read error: Connection reset by peer]
[13:24:34] -!- JT-Shop [JT-Shop!~chatzilla@216-41-156-49.semo.net] has joined #emc
[13:26:03] -!- skunkworks1 has quit [Ping timeout: 250 seconds]
[13:26:41] <skunkworks_> huh
[13:27:07] <awallin_> uhu
[13:29:21] <anonimasu> pcw_home: I got the answer that th encoder is a stegmann srm encoder
[13:29:53] -!- JT-Shop has quit [Read error: Connection reset by peer]
[13:30:38] -!- JT-Shop [JT-Shop!~chatzilla@216-41-156-49.semo.net] has joined #emc
[13:32:29] -!- e-jones has quit [Quit: Ex-Chat]
[13:32:53] <anonimasu> looks like internally they interpolate the sine/cosine
[13:36:18] -!- FinboySlick [FinboySlick!~shark@] has joined #emc
[13:39:38] <pcw_home> do you have the exact specs for your model?
[13:39:58] <anonimasu> no, it's the absolute one of the SRM
[13:41:21] <pcw_home> so if they interpolate internally the absolute should be high res
[13:41:51] <anonimasu> the datasheet says 32768 counts rev
[13:43:39] <pcw_home> well thats pretty decent so it basically ideal for a brushless motor, since you get commutation and fine position at once
[13:46:25] <anonimasu> and with a 5mm screw that's a reolution of 0.00015 per count
[13:47:19] -!- awallin_ has quit [Remote host closed the connection]
[13:49:44] <anonimasu> pcw_home: how can you figure out commutation details of the motor?
[13:52:27] <anonimasu> without data on that from mfg?
[13:54:24] <pcw_home> Since its an absolute encoder, 32768 counts is 360 degrees, that plus maybe a fixed offset is all you need to commutate the motor
[13:56:20] <anonimasu> I see
[13:56:24] <anonimasu> :)
[13:57:18] <pcw_home> you can figure out the offset by applying current to one winding to align the rotor. This offset must be common for all those motors
[14:00:47] <pcw_home> so for example for a trapezoidal drive that needs Hall signals, EMC could easily synthesize them from the angle
[14:00:49] <pcw_home> for something like an 8I20, the angle could be used as is (with scaling and offset)
[14:02:43] <skunkworks_> pcw_home: new toy http://electronicsam.com/images/KandT/probe/DSCF1507%5b1%5d.jpg
[14:03:42] <skunkworks_> pcw_home: and the decking is finally going in. (we never had it in - ever) http://electronicsam.com/images/KandT/conversion/decking2.jpg
[14:06:30] -!- kb8wmc has quit [Quit: ChatZilla [Firefox 3.6.17/20110422054454]]
[14:07:19] <Gensor555> PCW: for an ac servo do you recommend 5i23 7i44 and 8i20 per servo?
[14:08:33] <pcw_home> Yes plus and encoder interface of some kind.
[14:08:53] <Gensor555> these servos have encoder and hall
[14:09:07] <cradek> skunkworks_: cool - is that a manufactured device or did you make it?
[14:09:23] <skunkworks_> cradek: I think it is a renisaw knockoff.
[14:09:43] <pcw_home> skunkworks: is that a mechanical switch type probe? (looks like its from outer space)
[14:10:26] <skunkworks_> yes - it feels like the 6 ball, 3pin style. - 2 wires come out that open up when the probe is touched
[14:10:30] <Gensor555> pcw: do you have a power supply circuit for the 8i20 I can model mine after?
[14:10:33] -!- e-jones [e-jones!~jkastner@ip-84-242-102-36.net.upcbroadband.cz] has joined #emc
[14:10:36] <cradek> yes - plucked from orbit in 1955 and stored in area 51 until now
[14:10:42] <skunkworks_> heh
[14:13:58] <cradek> skunkworks_: have you thought of a way to put it through your tool changer?
[14:14:28] <skunkworks_> cradek: I think for starters - there will have to be a plug on it.
[14:14:40] <skunkworks_> so - you call the tool - then plug it in.
[14:14:46] <cradek> that's sure easiest
[14:14:50] <skunkworks_> http://cgi.ebay.com/BIG-CAT-50-Zero-Sensor-type-ZS1-Spindle-Probe-/310098398900?pt=BI_Tool_Work_Holding&hash=item48334e0eb4
[14:15:04] <skunkworks_> that is pretty much it. we just have to mount it in our tooling
[14:15:08] -!- JT-Shop has quit [Read error: Connection reset by peer]
[14:15:17] <skunkworks_> if we could find a pickup...
[14:15:53] -!- JT-Shop [JT-Shop!~chatzilla@216-41-156-49.semo.net] has joined #emc
[14:16:12] <cradek> a plug wouldn't be a big hardship. I manually loaded mine for a while - it was fine
[14:16:23] <skunkworks_> rigth
[14:16:27] <skunkworks_> right
[14:16:29] <cradek> usually you're doing something manual anyway
[14:16:58] <cradek> once I had a program load the boring head, run one pass, then load the probe and measure the resulting bore size - that would not be quite so easy
[14:17:11] <cradek> but that's a rare kind of usage for me
[14:17:24] <skunkworks_> no - but for us - it will work great (even if we have to plug it in)
[14:17:54] <cradek> wonder if they're springy enough to work well horizontally
[14:18:03] <skunkworks_> feels like it.
[14:18:23] <cradek> mine is very touchy and I think it would certainly trigger if moving up and down while horizontal
[14:18:46] <skunkworks_> but it should be easy to test. (we could always replace the spring tension if it was a problem...
[14:18:52] <cradek> yep
[14:19:06] <skunkworks_> cradek: our accelleration isn't as high as yours ;)
[14:19:32] <cradek> I have some of the super-fast opto22 input modules - yell if you need one - they're not too easy to find
[14:20:05] <cradek> the normal one is several ms delay, iirc
[14:20:14] <skunkworks_> I think we have some - but I will have to look. dad had been on a ebay opto22 buying spree
[14:22:33] -!- psha has quit [Quit: Lost terminal]
[14:30:38] <skunkworks_> cradek: we have for sure some 75us ones I think
[14:31:04] <skunkworks_> that sounded wishy washy
[14:31:47] <cradek> that's plenty fast for normal emc probing
[14:32:11] <skunkworks_> yes - through the 1ms base thread for sure.
[14:36:32] <pcw_home> Gensor: We will have a suggested power supply schematic, Its pretty simple but needs NTC surge suppresors , MOVs on input and should have a discharge/brake relay
[14:36:34] <pcw_home> to dump the capacitor charge iin < 1 second or so
[14:44:22] <Gensor555> pcw: what is your timeline for suggested ps?
[14:46:27] <pcw_home> Ill try and get it sketched up sometime next week
[14:47:25] <Gensor555> PCW: I must leave for work now.... and look forward to your design. Next week! That would be awsome! Here is my attempt at getting help on the circuit, however I still like Any's setup with the NTC surge suppressor
[14:47:29] <Gensor555> http://forum.allaboutcircuits.com/showthread.php?t=53801
[14:58:09] <pcw_home> Thats about it except I would use a DPDT relay with external 24V DC enable input. One NC contact is used for discharging the capacitor(s), the other poles NO contact switches the AC primary power
[14:59:24] <Gensor555> where would you post your design when completed?
[15:00:25] <pcw_home> Not sure, maybe on our website
[15:01:18] -!- dgarr [dgarr!~dgarrett@adsl-75-61-78-208.dsl.pltn13.sbcglobal.net] has joined #emc
[15:01:47] <pcw_home> You also want a independent bleeder ( 1 minute or so time constant) wired directly across the capacitors
[15:02:35] <Gensor555> God Speed and thank you! Must go since late for work :(
[15:15:43] -!- rooks [rooks!~rooks@102-bem-18.acn.waw.pl] has joined #emc
[15:21:37] -!- capricorn_one [capricorn_one!~capricorn@zima.linwin.com] has joined #emc
[15:31:03] -!- WalterN [WalterN!~walter@tiwake.com] has joined #emc
[15:42:32] <skunkworks_> http://www.youtube.com/watch?v=5MOSnFSx8JQ
[15:47:28] -!- psha [psha!~psha@] has joined #emc
[15:47:50] -!- ve7it [ve7it!~LawrenceG@S0106009027972e37.pk.shawcable.net] has joined #emc
[15:47:56] <cradek> skunkworks_: I want
[15:49:59] <cradek> are there worms on the servos?
[15:51:14] <cradek> they stuck a laser on it!!
[15:51:35] <skunkworks_> cool huh? I want to make one some day
[15:51:40] <skunkworks_> (hexapod)
[15:51:43] <cradek> that's so awesome
[15:53:44] <skunkworks_> cradek: I see a small machine like that and you buckling down and working on joint/axis branch :)
[15:53:56] <skunkworks_> the challenge of it all ;)
[15:54:26] <The_Ball> ah sweet
[15:54:44] <cradek> I can picture some simple ball bearing + delrin joints
[15:55:17] <cradek> struts could be balls epoxied onto the ends of simple rods
[15:55:25] <The_Ball> oh cool, he uses the magnetic encoder ics, i've got a few samples of them laying around
[15:55:38] <cradek> (if I were much cooler, I could use edm to tap them)
[15:55:52] <skunkworks_> heh
[15:56:33] <skunkworks_> friction weld!
[15:57:05] <cradek> with my lightweight high speed spindle, I wonder if I could do PCBs with a setup like this
[15:57:25] <cradek> not sure if I could make it all tight enough to work well
[15:58:16] <cradek> (easier strut would be to turn balls on the end of rods, duh)
[15:58:21] <Tom_itx> i toyed with the idea of making one of those for pick n place
[15:58:23] -!- isssy [isssy!~isssy@78-83-51-185.spectrumnet.bg] has joined #emc
[16:01:10] -!- aggrav8d [aggrav8d!~aggrav8d@S0106000b6a15cda1.vc.shawcable.net] has joined #emc
[16:01:38] <The_Ball> you could drive that as five axis right?
[16:02:01] <Tom_itx> 3
[16:02:04] <cradek> no, it has only 3 DOF as built
[16:02:07] <aggrav8d> any recommendations for online mill bit ordering?
[16:02:25] <Tom_itx> yes, ask JT-Shop
[16:03:16] <Tom_itx> http://www.lakeshorecarbide.com/
[16:03:20] <Tom_itx> that's the place
[16:03:37] <aggrav8d> note i am in canuckistan, I do not want to wait an extra week every time something has to go over the border. :P
[16:03:51] <Tom_itx> move
[16:05:22] <aggrav8d> i like my stronger dollar, good weed, and free health care.
[16:06:18] <cradek> eh stick it in your ear
[16:06:45] <cradek> we like our strong oil company tax subsidies
[16:07:42] <aggrav8d> I like them, too. gas prices rise any higher I'll be able to fill up over the border, come back, and still save money.
[16:08:29] <Tom_itx> take a mail box with you and stick in in the ground there
[16:08:48] <psha> but till there is good weed nobody cares about gas prices :)
[16:14:27] -!- nullie has quit [Quit: Ex-Chat]
[16:15:49] -!- emc2-buildmaster has quit [Ping timeout: 246 seconds]
[16:17:16] <lilalinux> which post processor can i use in Freemill for EMC?
[16:17:42] <cradek> probably none of them without modification, if none of them are for EMC
[16:18:11] <cradek> you can probably start with a fanuc postprocessor, and will probably need to make minor modifications
[16:19:57] <lilalinux> too bad
[16:21:15] <lilalinux> cradek: Sherline EMC is something different I guess?
[16:26:16] <cradek> sherline has used both emc and emc2 through the years
[16:26:25] <cradek> so it's hard to say what 'sherline emc' is
[16:28:50] -!- isssy has quit [Quit: Visitor from www.linuxcnc.org]
[16:33:50] <lilalinux> does anyone know that units Freemill uses? inches or mm?
[16:34:29] <archivist> should you read the manual and set units
[16:38:21] <cradek> we can sure help you with questions about what gcode emc needs (if you are trying to configure a post), but this is probably not the best place to get freemill tech support
[16:38:36] <cradek> (hm, and google for freemill seems to show a dozen different products with that name)
[16:38:44] <cradek> not a very creative name
[16:39:19] <Tom_itx> any idea where flashcutcnc aka sherline came from?
[16:39:55] <cradek> flashcut and sherline are not related are they?
[16:40:03] <Tom_itx> i don't think so
[16:40:09] <Tom_itx> they retrofit though
[16:40:31] <cradek> ok, you said 'flashcutcnc aka sherline' which made me wonder if you know something I don't
[16:40:45] <Tom_itx> well what do you know?
[16:40:59] <cradek> I don't know of any relationship between flashcut and sherline
[16:40:59] <Tom_itx> i'm just curious where it originated
[16:41:04] <cradek> sherline makes machines and uses EMC
[16:41:16] <cradek> flashcut is some windows based control thingy
[16:41:38] <Tom_itx> their early products were sherline retrofits
[16:41:41] <jdhNC> while fleshcut is some emo teen thing
[16:42:24] <cradek> "If you see your machine stutter at higher speeds, you can increase the DRO and Viewport Display Update Periods (to 1.0 and 0.2 seconds, respectively) on the Configuration > System > Performance Configuration Panel."
[16:42:39] <skunkworks_> yikes
[16:42:51] <cradek> good ole non-realtime usb based systems
[16:43:00] <jdhNC> that way, the update time is so slow you don't see the stutter?
[16:43:31] <cradek> no, it makes the nonrealtime windows program more likely to be able to keep the queue full on the usb thingy
[16:48:53] <bzzzz> so um
[16:49:00] <lilalinux> fanuk2 seems to work, thx cradek
[16:49:08] <cradek> yay
[16:49:35] <bzzzz> is there some way to get a stepper to turn at 1700rpm while retaining some semblance of torque?
[16:50:16] <Connor> depends on the stepper and voltage probably..
[16:50:17] -!- WesBaker has quit [Read error: Connection reset by peer]
[16:51:12] -!- WesBaker [WesBaker!~wes@] has joined #emc
[16:52:33] <bzzzz> hm
[16:52:54] <skunkworks_> servos would fix your problem... :)
[16:53:16] <bzzzz> they'd fix my cash surplus problem too :>
[16:54:19] <bzzzz> just tried pushing a pump with a stepper to 1700; the motor crapped out @ 1400, so i'm guessing that my torque is "non-existent," like cradek said :\
[16:54:56] <cradek> if it went 1400, it'll probably go 1700 if you double your voltage
[16:55:41] <cradek> that's the only way to win the stepper battle (except: the only winning move is not to play)
[16:56:41] -!- motioncontrol [motioncontrol!~i@host227-27-dynamic.20-87-r.retail.telecomitalia.it] has joined #emc
[16:57:53] -!- WesBaker has quit [Ping timeout: 240 seconds]
[16:58:01] <bzzzz> lemme read up that, thanks cradek + Connor
[16:59:10] -!- WesBaker [WesBaker!~wes@] has joined #emc
[17:03:50] <bzzzz> the driver is already getting 70V, and its rated max is 80
[17:04:12] <cradek> you probably can't improve it significantly, then
[17:05:26] <bzzzz> not with this particular driver, anyway
[17:06:38] -!- mhaberler [mhaberler!~mhaberler@h081217056015.dyn.cm.kabsi.at] has joined #emc
[17:07:08] <cradek> right
[17:07:24] -!- motioncontrol1 [motioncontrol1!~i@host214-4-dynamic.7-87-r.retail.telecomitalia.it] has joined #emc
[17:08:51] <FinboySlick> While on the topic of stepper RPM... I read about resonant frequencies and how they are to be avoided. There is functionality to avoid them with EMC, right?
[17:08:55] -!- motioncontrol has quit [Ping timeout: 246 seconds]
[17:09:39] -!- motioncontrol1 has quit [Client Quit]
[17:10:53] <anonimasu> usually with the drives
[17:11:27] <anonimasu> and it might be worth buying a small servo and gearing it down alot instead of a stepper in that kind of application
[17:11:30] <anonimasu> like ebay
[17:12:09] <FinboySlick> anonimasu: Well, I already have the mill purchased and I'd want to gain a bit more experience before I attempt that kind of retrofit.
[17:12:37] <anonimasu> well, steppers = forget anything about high speed
[17:14:03] <FinboySlick> anonimasu: Given what I figure to be the pitch on the worm gears and the size of the machine, I don't really think it'd be realistic to expect anything above 1000RPM.
[17:15:05] <FinboySlick> Or that such would be useful anyway. Biggest travel is about 10"
[17:24:41] -!- dgarr has quit [Ping timeout: 240 seconds]
[17:26:15] <ssi> a lot of the time people oversize their steppers
[17:26:33] <ssi> assuming you don't need the huge low-speed torque of a big stepper, a smaller stepper will have more torque at high speed than a bigger one
[17:28:08] -!- andypugh [andypugh!~andy2@cpc2-basl1-0-0-cust1037.basl.cable.virginmedia.com] has joined #emc
[17:28:12] -!- mhaberler has quit [Quit: mhaberler]
[17:29:40] -!- skunkworks_ has quit [Ping timeout: 252 seconds]
[17:30:32] <andypugh> JT-Shop: Do you recall what the circle-centre positions were (in each orientation) of those CAM files you kindly made for me? I think I need to set up locating pegs, then flip the parts.
[17:34:21] <FinboySlick> ssi: That might be something I face. The machine is all linear bearings with ballscrews so there isn't much 'sticking'. Plus, it's a high speed spindle so it doesn't require a lot of torque. Steppers are fairly large, rated at 3.5Nm.
[17:35:41] -!- AC-130U [AC-130U!~Martian@] has joined #emc
[17:36:05] <AC-130U> hi all :) i was looking for a channel thats for machining in general... this is the closest ive found so far
[17:36:15] <ssi> building gunships?!
[17:36:22] <AC-130U> hahahaa no :)
[17:36:24] <ssi> awww
[17:36:35] <cradek> there are a lot of people who think they are kind of like machinists here (including me!)
[17:36:37] <AC-130U> though.... theres an idea
[17:36:43] <AC-130U> a model gunship...
[17:36:56] <FinboySlick> AC-130U: Full-size or don't bother.
[17:36:57] <AC-130U> well. im looking at getting a bridgeport mill, good start, i'd say
[17:37:33] <AC-130U> and... one of the models im considering getting is a boss series machine with fubar'd controls, because i'd be upgrading the controls to current anyway
[17:37:43] <cradek> which boss?
[17:37:47] <AC-130U> 6 or above
[17:37:50] <AC-130U> servo motors
[17:38:09] -!- WesBaker [WesBaker!~wes@] has parted #emc
[17:38:11] <cradek> Seb & I retrofitted one of those a year ago april
[17:38:11] <AC-130U> though, if i get a boss 2 i can upgrade the motors to servos, right?
[17:38:28] <cradek> theoretically yes
[17:38:35] <AC-130U> ok
[17:38:37] <cradek> but get the servo machine to start with
[17:38:43] <AC-130U> yeah, its better, less work
[17:38:46] <ssi> where are you located?
[17:38:51] <cradek> they make a VERY easy retrofit
[17:38:53] <FinboySlick> AC-130U: First advice I have for you. Do make sure you have a good place to put it and the facilities to move it around.
[17:39:09] <AC-130U> im in utah, and im looking for someone who can teach me machining. the mill is a longer term project
[17:39:11] <cradek> we had ours homed and making chips in 11 hours from starting
[17:39:24] <cradek> I think it was 11:15
[17:39:31] <AC-130U> finboy: garage is most logical place... and when i get one ill be sure to put it on dunnage
[17:40:10] <AC-130U> i noticed that the non cnc mills are usually r8 tooling and the cnc ones are 30 taper tooling... which one is better?
[17:40:20] <anonimasu> 30 taper
[17:40:23] <cradek> 30 taper
[17:40:28] <AC-130U> whys that
[17:40:30] <ssi> R8 isn't inherently repeatable
[17:40:33] <cradek> repeatable tool lengths
[17:40:35] <ssi> and not ATC friendly
[17:40:40] <AC-130U> ohhh gotcha
[17:40:45] <ssi> but it's cheap and everywhere
[17:40:56] <cradek> with CNC, you want to be able to measure your tool lengths, put them in the tool table, and then have them repeat when you load the tool again
[17:40:57] <FinboySlick> AC-130U: Yeah. Just mentioning it because mine kind of stumped me when it got there. I had sort of reserved a room in the house for it and found out that these little buggers are a bit of a handful to move around.
[17:40:57] <AC-130U> 30 taper is more spendy?
[17:41:04] <andypugh> Not by much
[17:41:13] <andypugh> 30 taper is also a _lot_ shorter.
[17:41:14] <ssi> 30 taper is plenty common
[17:41:19] <anonimasu> the rigidity of 30 taper is alot better
[17:41:19] <AC-130U> hmmm ok
[17:41:25] <AC-130U> a lot to learn on my side :)
[17:41:27] <ssi> and you'll quickly wish you had a 30 taper if you get R8 :P
[17:41:34] <AC-130U> all good though, i NEED that edumacation
[17:41:35] <anonimasu> it's inversely proportional to tool holder length
[17:41:38] <andypugh> That's a big help when it comes to swapping tools, especially on machines with a short stroke.
[17:41:41] <cradek> the boss machine will have QC-30 which is a special type of 30 taper with a precise flange
[17:41:41] <anonimasu> (stiffness)
[17:41:48] <AC-130U> oh?
[17:42:02] <anonimasu> also they are have more material in the holder
[17:42:04] <cradek> it's best if the machine comes with tooling, but it's available if not.
[17:42:24] <ssi> AC-130U: you already have a line on machines to buy?
[17:42:27] <cradek> a couple years ago you could buy QC-30 end mill holders new from enco
[17:42:31] <ssi> I'm curious what a boss 6 with a bad control costs
[17:42:34] <cradek> they may still have them.
[17:42:47] <AC-130U> ssi: not yet, im looking for a duplex apt WITH a garage
[17:42:52] <ssi> hahaha
[17:42:57] <ssi> you really are starting at ground zero, huh
[17:42:58] <ssi> :D
[17:43:03] <AC-130U> once i get that lined up, then i can get the mill and use the garage as my shop
[17:43:03] <andypugh> All the 30 tapers (CAT30, 30INT, QC30, BT30) are the same size, just different retention methods. I am using BT30 in my 30INT mill, with a home-made pneumatic drawbar.
[17:43:09] <AC-130U> i mean, i have a house already with a garage
[17:43:15] <AC-130U> but im wanting to move to a cheaper place
[17:43:21] <ssi> I would also suggest that you start with a manual machine and learn manual work before you tackle CNC
[17:43:29] <AC-130U> ssi: yes, what i want to do
[17:43:33] <ssi> k good
[17:43:34] <AC-130U> you can run the boss in manual, no?
[17:43:42] <cradek> sorta sorta
[17:43:55] <AC-130U> hahaha, ok then ill get a bridgeport manual first
[17:44:03] <ssi> that's probably a good idea
[17:44:04] <AC-130U> easier to move than those heavy assed bosses too
[17:44:12] <cradek> when I started I took a machining 101 (manual machines) class at my local community college.
[17:44:29] <anonimasu> I'd suggest a used cnc
[17:44:37] <AC-130U> but i dont know ANYONE in this area who can teach me how to machine
[17:44:42] <anonimasu> things get crazy expensive fast if you want a decent retrofit
[17:44:49] <andypugh> Maybe get a little cheap manual, and wait for the right Boss to come round?
[17:44:51] <AC-130U> im considering going to a couple machine shops in the area and asking around
[17:45:00] <ssi> yea I did it backward
[17:45:02] <AC-130U> andy: yeah, im thinking of same
[17:45:08] <ssi> I bought a bridgeport manual first
[17:45:14] <cradek> just to be clear - don't get a manual and expect to cnc it
[17:45:15] <AC-130U> bridgeport for like 2200 at the most
[17:45:16] <anonimasu> I regret spending money on a manual(tho I got good resell value)
[17:45:16] <ssi> and I'm doing a retrofit on a cheapy grizzly mill
[17:45:20] <AC-130U> get a NICE manual that way
[17:45:27] <andypugh> The little, cheap, manual will also make you _really_ appreciate the quality of the real thing.
[17:45:34] <cradek> heh true
[17:45:38] <anonimasu> tho, I guess the schaublin of mine is a exception....
[17:45:39] <anonimasu> :)
[17:45:47] <cradek> get a seig and then a bridgeport cnc later :-)
[17:45:47] <anonimasu> as I just cant buy better iron
[17:45:54] <AC-130U> seig?
[17:46:05] <cradek> tabletop manual machine
[17:46:06] <archivist> anonimasu, you had to buy :)
[17:46:10] <AC-130U> hm
[17:46:13] <andypugh> I am converting a manual Harrison. It's not easy, but then it's a hobby :-)
[17:46:24] <anonimasu> archivist: yeah :D I got 2 for the price of a hf mill
[17:46:30] <archivist> anonimasu, I have one at home too
[17:46:36] <anonimasu> sv13's
[17:46:49] <anonimasu> only issue is a heavy knee
[17:47:00] <anonimasu> but I marvel at the scraping everyday
[17:47:03] <andypugh> The CNC-converted mini-mill is just about up to the job of making patterns for the castings to convert the Harrison.
[17:47:08] <anonimasu> they are +/-0.0000 something
[17:47:18] <anonimasu> i dont know how they did
[17:47:22] <archivist> mines a lathe
[17:47:27] <AC-130U> i know that on manual bridgeports it is easy to convert to cnc if yo uhave power feed... IN THEORY. me, i'd just convert to a dro'd machine if it doesnt already come with a dro and call it good
[17:47:32] <AC-130U> oh, and a vfd head
[17:47:46] <cradek> AC-130U: that is not the case. a power feed is not at all suitable for cnc control.
[17:47:54] <anonimasu> I'd just stick around and wait and save cash for a cnc with broken control
[17:48:02] <cradek> yes
[17:48:03] <anonimasu> maybe get a mini mill for playing around
[17:48:08] <andypugh> A neat quill conversion is not easy on a manual machine (heck, it is pretty clunky when Bridgeport do it)
[17:48:20] <AC-130U> i noticed on the bosses.
[17:48:30] <anonimasu> but I have servos that's powerful enough to throw the knee to the roof now :)
[17:48:31] <AC-130U> like a couple big warts on the side of the head
[17:48:51] <ssi> I've been debating whether to put a VFD on my bridgy clone
[17:48:53] <ssi> manual mill
[17:49:01] <ssi> it's got a 2-speed 3 phase motor setup
[17:49:06] <ssi> and I'm running it on a static converter
[17:49:13] <ssi> I'm not sure how the 2 speed thing would work with a vfd
[17:49:15] <ssi> or if it should go away
[17:49:15] <AC-130U> oh. someone on a different network has a bridgeport that has a little problem
[17:49:20] <AC-130U> everything works... except the ram.
[17:49:29] <archivist> ssi you have to get the righ vfd
[17:49:31] <AC-130U> its frozen with rust, and he cant get the ram loose at all
[17:49:33] <archivist> right
[17:49:34] <andypugh> I'll give him $50 for it, delivered.
[17:49:38] <cradek> heh, I replaced the ram in my boss8
[17:49:46] <cradek> it was quite hard to find
[17:49:47] <anonimasu> bbl
[17:49:48] <ssi> archivist: ok, how do I identify the right vfd?
[17:49:51] <anonimasu> gonna align the spindle of the lathe
[17:49:51] <anonimasu> :)
[17:49:52] <AC-130U> he wants to keep the machine :)
[17:50:05] <AC-130U> im thinking he has no choice but to replace the ram
[17:50:09] <andypugh> OK, $500 then. (still delivered)
[17:50:16] <archivist> ssi the voltage
[17:50:22] <cradek> I can't imagine what you mean by the ram being rusty
[17:50:24] <AC-130U> and its a jhead
[17:50:36] <AC-130U> i'll have to have him get pics of it so i can see
[17:50:40] <cradek> oh the ram (moving part), not the ram (memory chips in a cnc)
[17:50:47] <cradek> funny
[17:50:54] <andypugh> cradek == geek
[17:50:55] <ssi> archivist: I don't really fully grasp what the 2-speed thing is doing
[17:50:56] <AC-130U> hahaha cradek :D
[17:51:22] <archivist> ssi has to be the full 3 phase voltage, no rewiring to delta/star
[17:51:28] <cradek> I replaced the ram (memory chips) in my boss8 - they were hard to find
[17:51:38] <cradek> I have never replaced the ram (moving part) on a mill
[17:51:42] <AC-130U> ahhh
[17:51:45] <AC-130U> gotcha
[17:51:50] <AC-130U> 30pin simms?
[17:52:08] <andypugh> I could believe SIPS
[17:52:14] <archivist> long before sims I think
[17:52:16] <cradek> haha, no, about 15 years older than that
[17:52:34] <Connor> oh geez.. XT style chip ram.
[17:52:36] <AC-130U> ok, like DIP chips like the old 74 series logic chips
[17:52:36] <archivist> I do have some odd ram chips here
[17:52:45] <AC-130U> i see what youre talking about now
[17:53:07] <cradek> boss8 was made in '84 or so
[17:53:11] -!- kb8wmc [kb8wmc!~chatzilla@] has joined #emc
[17:53:26] <AC-130U> yeah. almost the same vintage as the amiga 1000 i had
[17:53:30] <AC-130U> couple years older in fact
[17:53:41] <cradek> boss1-2? are PDP
[17:53:45] <ssi> ew
[17:54:01] <AC-130U> |d|i|g|i|t|a|l|
[17:54:05] <AC-130U> i miss that logo.
[17:54:40] <andypugh> They retired the last of the PDP-11s at work last year. Sad.
[17:54:41] <AC-130U> so if i get a manual, can i convert it to use 30 taper?
[17:54:58] <cradek> no
[17:55:00] <archivist> andypugh, there are collectors for those
[17:55:10] <andypugh> Yes, in the "all things are possible" sense.
[17:55:11] <cradek> the quill on the QC30 is much bigger around
[17:55:27] <AC-130U> hmm ok
[17:55:32] <cradek> you'd have to replace the whole head, except the base casting is totally different
[17:55:35] <andypugh> archivist: I think our support guy was the collector. L-)
[17:55:40] <AC-130U> yeah...
[17:55:51] <archivist> saved at least
[17:55:53] <cradek> don't try to make a cnc out of a manual - buy the machine you need to start with
[17:55:55] <AC-130U> makes better sense to keep it r8...
[17:56:02] <cradek> you won't have ballscrews on your manual either
[17:56:10] <AC-130U> just acme leadscrews?
[17:56:13] <cradek> yes
[17:56:17] <AC-130U> ok
[17:56:26] <AC-130U> the thing that most appealed to me with the bosses are the box ways
[17:56:34] <cradek> they don't have box ways
[17:56:35] <AC-130U> no worries about crap clogging up the screws
[17:56:46] <cradek> they are dovetail
[17:56:48] <AC-130U> i thought i read about em having them
[17:57:03] <cradek> well - series 1 is dovetail - I don't know about series 2
[17:57:21] <ssi> archivist: ok so with the 2 speed switch that is on it now, low speed is star, and high speed is delta... is that accurate?
[17:57:37] <ssi> something like this: http://www.practicalmachinist.com/vb/attachments/f11/11576d1238618371-3-phase-2-speed-motor-wiring-help-2-spd_c-h_c-p_motor.jpg
[17:57:42] <andypugh> There is a ballscrew version of my mill on sale on that eBay. Almost tempting. http://cgi.ebay.co.uk/Harrison-Milling-Machine-spares-repair-/330562377710
[17:58:07] <archivist> ssi and some series parallel jiggery
[17:58:12] <ssi> right
[17:58:29] <andypugh> ssi: Could be switching between pole configurations.
[17:58:48] <archivist> ssi so I think you leave them at one speed once on a vfd
[17:59:00] <Connor> Any good general machiniest websites/books ?
[17:59:02] <AC-130U> WRT vfd control: i know i saw a single phase in to 3 phase out vfd unit out there for $200something for a 2hp version... i dunno if its ideal for running the motor on a bridgeport
[17:59:23] <ssi> archivist: from what I've read, it may have trouble starting in high speed
[17:59:24] <cradek> AC-130U: yes those are just fine for that
[17:59:34] <ssi> so I may be limited to running it low speed only
[17:59:41] <ssi> and maybe running it with 120hz max or something
[17:59:55] <AC-130U> and i want to have a jhead with vfd control
[18:00:02] <archivist> ssi no the vfd will probably get you all the speed you need anyway
[18:00:12] <cradek> AC-130U: but your 2hp boss head has varispeed which you'll probably want to keep using. the vfd is just a nice replacement for the phase convertor you'd need otherwise.
[18:00:12] <ssi> yeah, probably so
[18:00:29] -!- jv4779 [jv4779!~jv4779@c-98-201-6-55.hsd1.tx.comcast.net] has joined #emc
[18:00:32] <AC-130U> cradek: yeah, jhead+vfd on a manual
[18:00:50] <AC-130U> but on the boss, keep the head, clean itup, relube it, the whole 9 yards, and then vfd it
[18:03:17] <AC-130U> thanks for helping me get a lot of info straight in my head, all the info out there was a bit confusing and i didnt know some of which was which
[18:03:26] <AC-130U> im on cnczone too
[18:06:18] <ssi> I need an extra couple thousand square feet
[18:06:27] <ssi> and an extra couple hundred thousand dollars to fill it with machines :(
[18:06:42] <AC-130U> heh, interesting how this guy got his seig x3 mill up onto the bench
[18:08:27] <AC-130U> im wondering where all the machining people from utah are... seems like not all that many of them are on cnczone, heh
[18:09:08] <jdhNC> does anyone live in utah?
[18:09:23] <AC-130U> heh.
[18:09:27] <ssi> at least one person does, clearly!
[18:09:34] <AC-130U> i do... just because they had more jobs available than in IL
[18:09:42] <ssi> what do you do?
[18:09:56] <AC-130U> electronics technician/assembler/tester
[18:09:58] <jdhNC> goes door to door spreading the word?
[18:10:12] <AC-130U> im wanting to change careers though, get into either diesel mechanics or machining
[18:10:29] <AC-130U> schooling for machining looks to be cheaper than diesel mechanics though, like $1150 all told
[18:10:43] <ssi> http://www.teckmachinetool.com/used_milling/Avey%206%20Spindle%20Drill%20Press.jpg
[18:10:44] <ssi> whoa that's cool
[18:11:18] <AC-130U> looks like a machine used to hone out inline-6 engines
[18:11:28] <ssi> hahah it's just a 6-spindle drill press
[18:11:35] <AC-130U> yeah i know :)
[18:12:03] <AC-130U> i ran across something where you can turn a 3-bearing spindle into a 5-bearing spindle on a bpt... worth it?
[18:12:26] <jv4779> Is there a way to configure EMC2 so that synconization of the axis can be offset slightly. Such that the A axis moves slightly ahead of the X/Y travel. The problem I have is the response of the A axis has some some lag because of an elastic effect in the material.
[18:12:48] <jv4779> I could not think of a way to do this in the gcode
[18:12:51] <cradek> jv4779: just do it in your gcode
[18:13:58] <jv4779> the modification to the gcode seemed every complex when you consider the path optimization and acceleration that emc2 will also be doing
[18:14:22] <cradek> yeah, it depends on what kind of motions you're making
[18:14:53] <jv4779> to do this in gcode with a single move is eacy, but when there is more than one move back to back, the offet needs to be kept
[18:14:54] <archivist> jv4779, for problems in my A i only cut in one direction eg clockwise
[18:14:59] <cradek> strictly the answer to your question is no - combined motion is coordinated (starts and stops exactly together).
[18:15:26] <cradek> perhaps you can concentrate on better fixturing etc instead?
[18:15:41] <andypugh> AC-130U: Where do the extra bearings go? The more bearings you add, the more likely they are to disagree with each other about where the spindle axis really is.
[18:15:43] <archivist> backlash removal etc
[18:16:40] <andypugh> logger[psha]:
[18:17:55] <AC-130U> ihd have to look again, i didnt bookmark it i dont think
[18:19:05] <AC-130U> here ti is, http://www.cm-spindle.com/services.html
[18:23:00] <andypugh> I wouldn't bother if the spindle is good. If you need to replace the bearings then it might be worth it for the extra $75 on top. But Bridgeport probably knew what they were doing...
[18:23:16] <AC-130U> ok
[18:23:47] <AC-130U> friend of mine told me about his neighbor friend who has a bridgeport in her garage... her husband died and left her it and a metal brake
[18:24:01] <AC-130U> seems like she cant seem to find a buyer for it, doesnt know anyone that machines
[18:24:17] <ssi> sounds like you have your machine then
[18:24:25] <andypugh> Hmm. Widow, own home, Bridgeport. I think I am in love.
[18:24:31] <AC-130U> very possible
[18:24:32] <ssi> get the bridgy and send me the brake :D
[18:24:35] <AC-130U> andy: shes in her 70s
[18:24:56] <AC-130U> i know i also want a lathe but not sure which lathe to get also
[18:24:58] <andypugh> What model Bridgeport?
[18:25:00] <AC-130U> dont want one too big
[18:25:17] <AC-130U> not sure, ill have to ask him for details, it sounds like a 8x42
[18:25:18] <AC-130U> er
[18:25:19] <AC-130U> 9x42
[18:25:55] <andypugh> Don't ask on my account, I am just joking from 4000 miles away.
[18:26:05] <AC-130U> yeah, im asking for myself really
[18:26:17] <AC-130U> ok, imma cook up something for me and wife
[18:26:47] -!- e-jones has quit [Quit: Ex-Chat]
[18:27:31] <ssi> holy crap
[18:27:38] <ssi> monarch 42x108" lathe
[18:27:43] <ssi> 35" chuck
[18:31:16] <anonimasu> anyone here good at python?
[18:31:23] <anonimasu> how do you handle bytes/bits and operations like that?
[18:34:16] <AC-130U> hmmm.
[18:34:57] <AC-130U> if i get that mill, itll be like this: fly out, look at it make sure it works (i have no reason to doubt that itll work), get a forklift, put it on dunnage, ucrawl it back
[18:35:24] <ssi> or... pay a rigger
[18:35:31] <ssi> I've moved three big machines now
[18:35:42] <ssi> at this point, I think I'm just gonna call a rigger from now on :P
[18:35:44] <anonimasu> also, go with a dial gauge.
[18:35:49] <ssi> it always ends up being more work and hassle than it's worth
[18:36:09] <AC-130U> i've helped a bit with rigging before
[18:36:17] <AC-130U> have never done rigging all by myself though
[18:36:29] <ssi> last machine I moved was my grinder
[18:36:37] <ssi> I drove a truck and trailer to mobile, al from atlanta
[18:36:48] <ssi> seller loaded it on the trailer with a forklift
[18:36:55] <ssi> got it home ok, but I had no way to unload
[18:36:57] <AC-130U> helping on the rigging, that was on a farm where i worked for a year
[18:37:02] <ssi> ended up costing me $500 to rent a forklift to unload it
[18:37:20] <ssi> I dunno what it would have cost to haev a rigger move it
[18:37:23] <AC-130U> wonder how much a skid steer loader with forklift tines woulda cost
[18:37:35] <ssi> but I imagine with what I spent on the forklift rental plus the trip, it probably would have been worth it just to pay a rigger
[18:37:47] <ssi> plus, that machine is still on a pallet, and I have no clue how I'm gonna get it off the pallet
[18:37:55] <ssi> the rigger would have put it in place and probably leveled it for me :P
[18:37:57] <AC-130U> keep it on the pallet, imho
[18:38:16] <ssi> that's what I've done so far, but it's a pain
[18:38:18] <AC-130U> build a ramp going up to the pallet with a place for you to stand on
[18:46:26] -!- Connor has quit [Ping timeout: 252 seconds]
[18:46:52] <ssi> so, to embark on my scraping journey
[18:47:00] <ssi> I'm thinking I should start by making an angle template
[18:47:18] <ssi> my end goal is to restore my clausing 6300
[18:47:23] <ssi> which has a lot of way wear
[18:47:36] <ssi> I have a 1x3x12" piece of durabar
[18:47:52] <ssi> thinking I might try to somehow rip it in half lengthwise and then machine it into an angle template blank
[18:48:21] <ssi> only way I can think of to really rip it in half though is to put a cutoff disk in my surface grinder
[18:52:10] <AC-130U> ok... how do i change tooling on a bridgeport, i wonder? is there a video somewhere of it?
[18:52:22] <ssi> what kind of bridgeport
[18:52:25] <ssi> manual, R8 spindle?
[18:52:26] <cradek> which spindle?
[18:52:53] <ssi> loosen the drawbar, whack it with a deadblow hammer to release the taper
[18:53:04] <ssi> unthread the drawbar from the collet, take out the collet, put a new one in, tighten drawbar
[18:55:44] <AC-130U> yeah manual with r8
[18:56:00] <AC-130U> what other tapers can manuals have?
[18:57:35] <ssi> usually just R8 or MT
[19:03:43] <lilalinux> Is there something like arrays for g-code?
[19:04:09] <cradek> you can use numbered variables as arrays with a little creativity
[19:04:28] <cradek> call 1000 your array base, #[1000+10] is the 10th item
[19:04:43] <lilalinux> is there an upper limit?
[19:04:54] <lilalinux> and can the values be read from a file?
[19:04:55] <AC-130U> MT?
[19:04:57] <AC-130U> like morse taper?
[19:05:15] <ssi> yes
[19:05:25] <lilalinux> i.e. I have a file with 1000 values
[19:05:29] <cradek> sure, if your file has lines like #1001=1.234
[19:05:31] -!- connor [connor!~Connor@] has joined #emc
[19:05:46] <AC-130U> hmm. no real difference in quality between the two toolings?
[19:05:48] <cradek> there is an upper limit - I think it's 5000 or so
[19:05:52] connor is now known as Connor
[19:06:02] <ssi> I haven't dealt with an MT spindle on a mill... and I don't think I'd want to
[19:06:05] <lilalinux> ok
[19:06:08] <lilalinux> thank you
[19:06:17] <ssi> cradek: hey that's not a bad way to do profiling actually
[19:06:25] -!- DaViruz [DaViruz!daviruz@c-e585e455.26-0042-74657210.cust.bredbandsbolaget.se] has joined #emc
[19:06:33] <AC-130U> if it has MT can i convert to r8? (i think its r8 but just wanted to cover all bases)
[19:06:48] <ssi> AC-130U: replacing a spindle isn't trivial
[19:06:51] <ssi> it's probably not MT
[19:07:14] <AC-130U> ok cool
[19:07:16] <cradek> of course you can have a counter to access your array: say the counter is in #10. #[1000+#10]
[19:07:44] <cradek> or #[1000+#<i>] if you want to use a named variable
[19:19:33] <lilalinux> can I have named variables?
[19:20:04] <lilalinux> I'm using numbers only, because I thought i can't use numbered variables
[19:20:32] <ssi> just gotta put named vars in <>
[19:20:35] <ssi> #<myvar>
[19:20:51] <lilalinux> wow, thx
[19:21:24] <ssi> you bet
[19:21:30] <ssi> here's another one that'll change your life
[19:21:38] <ssi> (debug, myvar's value is #<myvar>)
[19:21:39] <lilalinux> rtfm?
[19:21:42] <lilalinux> :-)
[19:21:58] <lilalinux> yeah, found that out last week :-)
[19:22:11] -!- HazardX [HazardX!~HazardX3@pool-96-237-60-90.bstnma.fios.verizon.net] has joined #emc
[19:22:33] <AC-130U> ah. i may have found a suitable vehicle to take the bridgeport home if i buy it
[19:22:54] <AC-130U> enterprise, rent a pickup truck with 3-4k lb payload capacity and drive it home
[19:22:56] <ssi> I hope it's an AC-130
[19:23:00] <ssi> aw :(
[19:23:41] <AC-130U> ya i know
[19:23:55] <lilalinux> what's the scope of named variables? numbered variables <=30 are always local, what about named ones?
[19:23:59] <AC-130U> i know that if i flip the head upside down itll make the machine not so top heavy
[19:24:05] <AC-130U> itll put the CG lower
[19:24:15] <ssi> yea and drop the knee all the way down
[19:24:23] <ssi> although I did neither when I moved mine
[19:24:28] <ssi> just strapped it down real good
[19:24:38] <ssi> I did have to take the table off and flip the head over to get it through a doorway tho
[19:25:01] <ssi> I moved mine on a rollback, which was awesome because when I got it home, he was able to extend the bed out and down onto my garage floor
[19:25:07] <ssi> winch the machine down til the edge was on the concrete
[19:25:11] <ssi> then pull the bed out from under it
[19:25:24] <AC-130U> ohh thats right, ill want a tommy lift on the truck
[19:25:40] <L84Supper> yeah, flatbed tow trucks
[19:25:43] <ssi> I dunno that I'd want to move a bridgeport on a liftgate
[19:25:43] <AC-130U> i have a friend who has such a pickup outfitted, maybe i can ask him
[19:26:03] <AC-130U> he has a moving service, hes moved 2k lb gun safes before
[19:26:04] <ssi> they have a tendency to tip down a bit when they're in motion
[19:26:10] <ssi> and the mill is very topheavy
[19:26:13] <ssi> that'd scare the piss out of me
[19:26:28] <AC-130U> ill have to ask him what capacity his lift is
[19:27:08] <ssi> I have a pretty big gun safe, and it's only 660lb
[19:27:13] <ssi> the mill will be closer to a ton probably
[19:28:22] -!- mhaberler [mhaberler!~mhaberler@h081217056015.dyn.cm.kabsi.at] has joined #emc
[19:28:52] <AC-130U> if his lift is only 1500 lb capacity thatll rule him out
[19:29:17] <ssi> how are you going to move it from the bed to the lift?
[19:29:48] -!- mhaberler has quit [Client Quit]
[19:30:04] <AC-130U> he has like an appliance dolly... i dunno what other moving related equipment he has
[19:30:12] <AC-130U> but if its on dunnage i will want a pallet jack
[19:30:21] <AC-130U> one that has a 3k lb rating
[19:38:12] <AC-130U> hm. thts what i was afraid of, his lift can only take 1500 lbs max
[19:38:26] <ssi> yeah, I really wouldn't recommend it
[19:38:36] <ssi> the rollback worked pretty well
[19:38:43] <ssi> a forklift at the receiving end would be best probably
[19:38:47] <L84Supper> we have just used 1" steel rods as rollers to move machines
[19:38:49] <AC-130U> i just thought of something
[19:38:59] <ssi> yeah I used rods to move machines too, but that doesn't get it off the truck :)
[19:39:45] <L84Supper> I picked up a Bridgeport from an old machinists garage with a tiltbed tow truck, the old guy moved the mill himself in 5 minutes
[19:40:15] <L84Supper> you can roll them off as well, but i have a forklift
[19:40:46] <ssi> I want to get a forklift of my own
[19:40:50] <ssi> but I have no clue where I'd keep it :(
[19:41:25] <AC-130U> i thought about ABF moving cubicles
[19:41:36] <Jymmm> SWPadnos: I FINALLLY found a use for the artigo!!!
[19:41:38] <AC-130U> i dunno how i'd secure the machine inside a cube like that though
[19:46:40] <L84Supper> 100 cans of spray foam?
[19:47:10] <ssi> if there are eyes or some sort of tie point near the floor, would be pretty easy to strap down
[19:48:22] <AC-130U> hmm
[19:48:58] <AC-130U> hell, i might just buy a beater truck there for $300 and rent a uhaul trailer and haul that sucka home, heh
[19:49:33] <Jymmm> buy a trailer too, then sell when you get home
[19:49:57] <AC-130U> or make one, im looking for the article where a guy made one, gimme a few mis
[19:49:59] <AC-130U> mins*
[19:50:49] <AC-130U> ah yes, here it is http://bridgeport.askmisterscience.com/bridgeport.htm
[19:57:59] -!- vladimirek has quit [Ping timeout: 240 seconds]
[20:00:52] <ssi> hah lord
[20:01:05] <AC-130U> what
[20:01:19] <ssi> that's taking diy to extremes
[20:01:22] <ssi> and coming from me, that says something
[20:01:24] -!- vladimirek [vladimirek!~vladimire@bband-dyn166.178-41-220.t-com.sk] has joined #emc
[20:01:35] <AC-130U> yeah...
[20:01:38] <AC-130U> i found this
[20:01:43] <AC-130U> http://sarasota.craigslist.org/cto/2377903127.html
[20:01:48] <AC-130U> prolly a better bet
[20:02:03] <AC-130U> uhaul rental is $1200ish, so whats another $300 to OWN that setup? :)
[20:02:41] <ssi> yep
[20:03:15] <ve7it> take it for a test drive.... and move the mill!
[20:03:17] <AC-130U> says the trailer has a winch, that could come in handy
[20:03:23] <Jymmm> and has an electric winch too
[20:03:40] <AC-130U> only DIY i might have to do is a derrick
[20:03:49] <AC-130U> which then can be broken down and taken along on the trailer
[20:05:05] <Jymmm> Just find out how bad the transmission REALLY is first.
[20:05:43] <Jymmm> or a junk yard in the area and just swap it out
[20:05:54] -!- OoBIGeye has quit [Ping timeout: 260 seconds]
[20:05:59] <AC-130U> yeah
[20:06:07] <Jymmm> Or, that's a Ranger, not a F150
[20:06:12] -!- OoBIGeye [OoBIGeye!~kent@194-237-167-11-no48.tbcn.telia.com] has joined #emc
[20:06:16] <Jymmm> Ranger == Mazda
[20:06:22] <AC-130U> mazda b2000
[20:06:23] <AC-130U> yeah
[20:06:27] <AC-130U> very similar body style
[20:06:45] <Jymmm> interchargable akaik
[20:07:11] <Jymmm> wonder if a 4 banger will pull all that
[20:07:11] <AC-130U> engine and trans is different though
[20:07:16] <Jymmm> you sure?
[20:07:21] <AC-130U> yeah, i worked on both
[20:07:23] <AC-130U> theyre different
[20:07:24] <Jymmm> ah
[20:07:48] <Jymmm> Well, just signup for the premium AAA membership =)
[20:08:05] <AC-130U> hahah yeah
[20:08:06] <Jymmm> That'll get you 4 x 100 mile tows
[20:08:12] <Jymmm> in a year
[20:08:12] <AC-130U> how much does the table itself cost?
[20:08:17] <AC-130U> er i mean
[20:08:20] <AC-130U> how much does it weigh
[20:08:24] <AC-130U> *brainfart*
[20:08:38] <ssi> prolly 400lb or so
[20:08:50] <AC-130U> can it be taken off easily?
[20:08:56] <ssi> yeah, with two people it's not bad
[20:09:05] <ssi> I've done it alone with a sawhorse, but it's not fun
[20:09:33] <AC-130U> ok, and the head is like 300ish lbs?
[20:10:18] <Jymmm> http://www.harborfreight.com/500-lb-capacity-hydraulic-lift-table-94822.html
[20:10:59] <ssi> depends where you take the head off, I suppose :)
[20:11:07] <AC-130U> hahaha, where?
[20:11:18] <AC-130U> the friend says he can move it if the machine is taken apart some
[20:11:25] <ssi> well the head comes off the ram
[20:11:28] <AC-130U> get the main part to be at or under 1500 lbs
[20:11:30] <ssi> ram comes out of the turret
[20:11:33] <ssi> turret comes off the base
[20:11:47] <Jymmm> http://www.harborfreight.com/1-ton-capacity-foldable-shop-crane-93840.html
[20:11:56] <Jymmm> there ya go... crane to go!
[20:12:17] <ssi> I'm not sure how easy it'd be to move a bridgeport with a 1 ton engine crane
[20:12:28] <ssi> they're only 1 ton capacity with the arm all the way in
[20:12:30] <Jymmm> in pieces?
[20:12:34] <ssi> in pieces it'd be easy
[20:12:44] <Jymmm> thats what I meant
[20:12:45] <AC-130U> hmm
[20:12:45] <ssi> in enough pieces you could move it with two strong guys
[20:13:02] <AC-130U> how much does the base+knee weigh?
[20:13:25] <ssi> dunno!
[20:17:39] <AC-130U> hm
[20:18:07] <bzzzz> units "2 strong guys" "lb"
[20:18:34] <Jymmm> + hernia + beer
[20:18:48] <AC-130U> hahaha
[20:20:04] -!- Calyp has quit [Quit: Leaving]
[20:21:38] <AC-130U> friend thinks its doable with his setup
[20:22:00] <AC-130U> now, whether hes willing to drive to FL and back, thats another story
[20:23:22] <ssi> that's a hell of a trip
[20:23:25] <ssi> sure you can't find something closer? :P
[20:23:29] <AC-130U> i know
[20:23:35] <AC-130U> all overpriced
[20:23:38] <AC-130U> in this area
[20:23:45] <ssi> define overpriced
[20:23:53] <AC-130U> way out of my budget
[20:24:03] <Jymmm> AC-130U: You mean buying from FL + truck + trailer is cheaper than local?
[20:24:07] <ssi> but $2500 to move the machine is in your budget?
[20:24:12] <AC-130U> yes
[20:24:15] <Jymmm> and fuel
[20:24:19] <AC-130U> here theyre wanting 4k+ for th emachine
[20:24:29] <Jymmm> where's here?
[20:24:31] <ssi> who's "they"?
[20:24:33] <AC-130U> utah
[20:24:44] <AC-130U> the people selling their bridgeports
[20:25:13] <ssi> a local machine for $4k in known condition sounds like a far better deal than trying to move some random machine in a widow's garage 3000 miles
[20:25:14] <andypugh> https://picasaweb.google.com/bodgesoc/Gibbs#5600023926512887810
[20:25:29] <andypugh> Is how I have been taking the too-heavy bits off of my mill.
[20:26:41] <andypugh> 30INT is not unusual for a manual machine, by the way. My Harrison and an Elliot I know of are bot manual drawbar 30 INT machines.
[20:27:04] <AC-130U> hmmm....
[20:27:55] <AC-130U> i see a boss 1 cnc for 3500
[20:28:02] <AC-130U> that machine is *old*.
[20:28:24] <ssi> where are you looking
[20:28:29] <AC-130U> ksl.com
[20:28:34] <AC-130U> in the classifieds
[20:28:39] <AC-130U> the machine is located in roy UT
[20:30:21] <AC-130U> cant find anything either denver or phoenix
[20:30:25] <AC-130U> doesnt mean they arent out there
[20:30:33] <ssi> I got my machine word of mouth
[20:30:39] <ssi> my lathe came off craigslist
[20:30:46] <ssi> grinder from ebay
[20:30:50] <AC-130U> yeah, the mill is word of mouth
[20:30:50] -!- vladimirek has quit [Remote host closed the connection]
[20:30:53] <AC-130U> but fuck, in florida?
[20:30:54] <andypugh> JT-Shop: Sorry, I ought to say I found the info in an email from you.
[20:31:07] <ssi> yea well mine was word of mouth 30 miles away
[20:31:09] <ssi> not 3000 :D
[20:31:23] <AC-130U> see above :)
[20:31:28] <AC-130U> <AC-130U> but fuck, in florida?
[20:31:39] <AC-130U> i really wish i can find one much closer
[20:31:46] <ssi> you can
[20:31:50] <ssi> just keep looking
[20:31:52] <ssi> it doesn't happen overnight
[20:31:54] <AC-130U> yeah
[20:32:28] <AC-130U> hell if i found one in IL that'd work too because i got some shit in storage in IL anyway that i can pickup
[20:34:22] <L84Supper> AC-130U : i might have a Cincinnati manual mill for sale near Chicago
[20:34:50] -!- e3m [e3m!~IceChat7@] has joined #emc
[20:35:39] -!- West0n [West0n!~West0n@unaffiliated/west0n] has joined #emc
[20:35:54] -!- WalterN has quit [Read error: Connection reset by peer]
[20:36:28] <West0n> Anyone here use camworks (cam plugin for solidworks)?
[20:36:44] <AC-130U> hm
[20:37:22] <AC-130U> err... the cincy's look like bridgeport copies, no?
[20:37:28] <L84Supper> yes
[20:37:32] <ssi> oshi want
[20:37:33] <ssi> http://atlanta.craigslist.org/atl/tls/2372551903.html
[20:38:09] <L84Supper> http://ozarkwoodworker.com/images/AdPhotos4/toolmad.jpg like the one on the left
[20:38:18] <AC-130U> specs are similar to the bpts?
[20:38:41] <L84Supper> pretty much
[20:39:30] <L84Supper> I think i have a set of the dual taper collets as well ~25-30pcs
[20:39:37] <AC-130U> hmmm
[20:40:01] <andypugh> ssi: Nice lathe
[20:40:06] <ssi> yeah
[20:40:13] <ssi> i don't need another lathe and I'm thinking about buying it :(
[20:47:08] <jdhNC> send me one
[20:47:21] <ssi> send me money and I will
[20:47:30] <ssi> I'd sell my clausing to get that P&W
[20:47:50] -!- psha has quit [Quit: Lost terminal]
[20:54:45] -!- FinboySlick has quit [Quit: Leaving.]
[21:12:58] -!- eca [eca!~eca@24-197-144-97.dhcp.gwnt.ga.charter.com] has joined #emc
[21:13:22] -!- eca [eca!~eca@24-197-144-97.dhcp.gwnt.ga.charter.com] has parted #emc
[21:23:14] -!- e3m has quit [Quit: Copywight 2007 Elmer Fudd. All wights wesewved.]
[21:23:32] <bzzzz> apparently using a bipolar parallel connection doesn't help
[21:26:03] <andypugh> With?
[21:26:28] <bzzzz> trying to force my 400oz stepper to run @ 1.7krpm
[21:26:56] <ssi> higher voltage or smallers steppers :)
[21:27:01] <bzzzz> it's weird, because it's rated @ 6a, but i'm pumping 8a through
[21:27:09] <bzzzz> and i still see it stall at the same freq
[21:27:24] <bzzzz> ssi: yeah, trying to dig my way out before i buy something new
[21:28:55] <bzzzz> bbl, 2nd lunch time
[21:29:34] <andypugh> Higher voltage is normally the only way. You could try lower microstepping.
[21:29:45] <andypugh> What is your base thread frequency?
[21:39:05] -!- crazy_imp has quit [Ping timeout: 260 seconds]
[21:41:02] -!- crazy_imp [crazy_imp!~mj@a89-182-4-131.net-htp.de] has joined #emc
[21:54:41] -!- Fox_Muldr has quit [Ping timeout: 276 seconds]
[21:55:47] -!- Fox_Muldr [Fox_Muldr!quakeman@frnk-5f742d1f.pool.mediaWays.net] has joined #emc
[21:58:26] -!- kb8wmc has quit [Quit: ChatZilla [Firefox 3.6.17/20110422054454]]
[22:04:00] <bzzzz> andypugh: i think it's adequately high because i see the pulse train spaced properly on my scope
[22:06:51] <andypugh> Do the maths though, see how many base periods there are per step at your max speed.
[22:11:05] -!- HazardX2 [HazardX2!~HazardX3@pool-96-237-60-90.bstnma.fios.verizon.net] has joined #emc
[22:14:11] -!- HazardX has quit [Ping timeout: 240 seconds]
[22:22:54] -!- Tom_L [Tom_L!~Tl@unaffiliated/toml/x-013812] has joined #emc
[22:24:48] -!- Tom_L has quit [Read error: Connection reset by peer]
[22:25:11] -!- Tom_L [Tom_L!~Tl@unaffiliated/toml/x-013812] has joined #emc
[22:27:35] <Tom_itx> ok, what are these little plastic thingies that come with the 7i47? i'm sure they're really important
[22:32:20] <mikegg> haha, I've been wondering the same thing
[22:32:37] <mikegg> I don't think they are important
[22:35:20] <Tom_itx> i'm not sure but they may be something to tighten the unused screws against
[22:36:09] <Tom_itx> i could look the connector up and see if the data sheet shows but i'm too lazy
[22:36:14] <mikegg> oooooh, that sounds plausible
[22:36:47] <mikegg> I've seen them in catalogs next to those terminal blocks etc.. alas, no explanation
[22:37:15] <Tom_itx> so not to scar the bottom of the connector with the screw
[22:40:15] -!- Tom_L has quit []
[22:40:18] -!- Tom_itx has quit []
[22:41:45] -!- Tom_shop [Tom_shop!~Tl@unaffiliated/toml/x-013812] has joined #emc
[22:42:01] Tom_shop is now known as Tom_itx
[22:45:51] <mikegg> so you went with a 7i43 I guess?
[22:46:02] <Tom_itx> yup
[22:46:06] <mikegg> cool
[22:46:41] <Tom_itx> i gotta finish some stuff before i can use it but i can wire it up and get it ready
[22:47:09] <mikegg> it's pretty hard to beat in terms of bang/buck
[22:47:47] -!- servos4ever has quit [Quit: ChatZilla 0.9.85 [SeaMonkey 2.0.11/20101206162726]]
[22:48:05] <JT-Shop> Tom_itx: they are to "key" your plugs
[22:48:43] <Tom_itx> that was my 2nd guess
[22:48:59] <JT-Shop> they kinda fall out sometimes...
[22:49:32] <Tom_itx> meh, i probably won't use em
[22:50:25] <Tom_itx> oh, on the front edge of the bottom half of the plug?
[22:50:28] <Tom_itx> the socket part?
[22:50:42] <JT-Shop> I forget exactly
[22:51:03] <JT-Shop> they slide in somewhere and you break something off...
[22:51:12] <Tom_itx> you'd have to be pretty stupid to get those backwards
[22:51:26] <JT-Shop> a touch of instant glue might hold them in...
[22:52:20] <Tom_itx> i'll probably spend the evening figuring out what pins are for the steppers
[22:53:10] <JT-Shop> clear dmesg, run a config that loads the 7i43 then dmesg to see the pin out
[22:53:45] * JT-Shop wonders if pcw_home is around
[22:53:51] <mikegg> after you load a firmware with some stepgens... I think
[22:53:53] <Tom_itx> i whipped out a board for my lcd/pendant interface
[22:54:00] <Tom_itx> did you see it?
[22:54:14] <JT-Shop> I saw the eagle print I think
[22:54:20] <Tom_itx> i might make some revisions to it before i commit it
[22:54:57] <Tom_itx> i went with his analog in for the switches and added a place for digital out to the 7i43 for them
[22:55:50] <Tom_itx> i sorta did the schematic in my head. i suppose i should breadboard it and test it but meh...
[22:57:26] <JT-Shop> http://www.linuxcnc.org/component/option,com_kunena/Itemid,20/func,view/catid,27/id,9793/lang,english/#9793
[22:57:26] <Tom_itx> the board'll only cost me $5 anyway i think
[22:57:43] <Tom_itx> and i'll get 3
[22:57:44] <JT-Shop> cheaper than filling up your lawn mower
[22:58:38] * JT-Shop wanders off to fetch dinner for me and the missus
[22:58:41] <Tom_itx> $5 / sq in and it's right at a sq in
[22:58:44] <Tom_itx> http://dorkbotpdx.org/wiki/pcb_order
[22:58:53] <Tom_itx> if you like purple
[22:59:43] * Tom_itx just had chinese
[23:22:23] <Jymmm> Connor: http://www.weirdstuff.com/cgi-bin/item/382052
[23:22:24] <Jymmm> Connor: http://www.weirdstuff.com/cgi-bin/item/382052
[23:22:25] <Jymmm> Connor: http://www.weirdstuff.com/cgi-bin/item/382052
[23:22:43] <Connor> woho
[23:22:44] <Connor> huh?
[23:22:49] * Tom_itx clicks on one per monitor
[23:23:00] <AC-130U> .
[23:23:02] <Jymmm> Tom_itx: 3D vision
[23:23:29] <Tom_itx> ok the lcd board should cost me about $5
[23:24:14] <Jymmm> MAKE OFFER http://cgi.ebay.com/PRI-Automation-TTR-300-Robot-Teach-Pendant-/320679346058
[23:24:36] <Connor> Interesting.
[23:24:41] <AC-130U> for a short while i thought about trying to get a pick and place machine (for SMT electronic parts) and modifying it to do cnc machining... but then realized that the axis drives are gonna be puny
[23:25:37] <Jymmm> Connor: i just saw that and thought of you, do with it as you please =)
[23:25:43] <Connor> Chuckle.
[23:25:59] <Connor> I'm working on the python/arduino code right for the DRO part of my pendant..
[23:26:15] <Connor> Just about have the protocol figured out.. and well be doing some testing shortly
[23:31:36] -!- stormlight [stormlight!~jasonandt@c-71-202-13-101.hsd1.ca.comcast.net] has joined #emc
[23:33:21] -!- stormlight has quit [Client Quit]
[23:35:14] -!- dgarr [dgarr!~dgarrett@adsl-75-61-78-208.dsl.pltn13.sbcglobal.net] has joined #emc
[23:38:14] <andypugh> I need a house miles from neighbours, so I can machine after midnight and not feel guilty.
[23:38:26] <AC-130U> hahahaaha
[23:38:29] <AC-130U> dude, i know the feeling
[23:38:48] <AC-130U> i wanna blacksmith as well... and while i havent bought any blacksmithing stuff im always thinking of the noise
[23:39:15] <Tom_itx> it would be just like living by the train tracks. eventually they wouldn't even notice
[23:39:26] <Tom_itx> it's the getting up to the 'eventually' that might kill it
[23:39:31] <AC-130U> yeah.
[23:39:40] <AC-130U> or blasting my heavy metal music
[23:43:55] <HazardX2> Or just start off with a really huge project to give to your neighbor(s)...so they can't complain about your awsome.
[23:44:07] <HazardX2> :P
[23:44:56] <AC-130U> hahahaah
[23:46:13] HazardX2 is now known as HazardX