#linuxcnc | Logs for 2012-06-07

[01:20:54] <uw> hi again
[02:14:00] <DJ9DJ> moin
[02:25:52] <jd896_fabshop> morning people
[02:27:03] <jd896_fabshop> does anybody have any views on inverse deadband? if found that my old anologe amps dont respond til around 0.15volt will this sort it
[02:36:06] <archivist> jd896_fabshop, didnt you say your amps are velocity mode? as that comp mentions torque mode
[02:36:18] <archivist> you need to ask awallin
[03:14:28] <jd896_fabshop> yeah in does say that but my drive dont respond the are velocity i've spoken to the esab engineer i know and he wasn't surprised buy this, maybe they do it for noise immunity?
[03:16:42] <archivist> could try it
[03:17:23] <Valen> i'd be concerned about it oscilating
[03:28:12] <jd896_fabshop> butim getting spikes the my following error that i cannot get out i think its down to the drives not responding due to the low dac output
[03:28:47] <Valen> looked at it with halscope?
[03:32:39] <jd896_fabshop> yeah
[03:33:36] <jd896_fabshop> untill output reaches above 0.15 i get no velocity
[03:36:43] <Valen> i meant your ferror
[03:53:24] <jd896_fabshop> yeah
[03:53:32] <jd896_fabshop> that too
[03:57:03] <jd896_fabshop> theres a scope shot on the forum esab ultrarex
[04:34:07] <jd896_fabshop> is big john aruond
[06:00:18] <jthornton> 4:25 is way too early for him
[06:00:41] <jthornton> and he over slept this morning too
[07:03:00] <Tom_itx> jthornton, what about 6:52?
[07:03:22] <Tom_itx> sleep much more and the day will be over
[07:04:02] <archivist> probably got woken by the dog whining about breakfast
[07:04:21] <jthornton> I'm usually up at 5:01
[07:04:23] <Tom_itx> cut my first parts off using linuxcnc last night after fixing the manual tool change code
[07:04:31] <jthornton> nice
[07:04:34] <Tom_itx> thanks to you and others here
[07:05:46] <Tom_itx> finally got my cam post tweaked the way i want it and figured out what the tool table expects for tool offset entries etc
[07:06:16] <Tom_itx> apparently most here who use manual tool change use touch off
[07:08:21] <jthornton> I'm sure I don't understand the last statement
[07:09:12] <Tom_itx> setting one tool at a time during machining instead of setting them all at once and entering them in the tool length offset in the tool table
[07:09:32] <Tom_itx> with some sort of touch off device
[07:10:32] <Tom_itx> unless of course they have a tool changer
[07:11:50] <jthornton> the problem is if you don't have some magic Z touch off switch that you probe to after the tool change it doesn't make sense to even use the tool table if your spindle is a collet one
[07:13:53] <Tom_itx> i think that's been brought up here
[07:16:52] <Tom_itx> for example being able to change a tool if it breaks or gets dull then continuing where you left off
[07:18:03] <jthornton> yea, there has been a lot of discussion on that subject
[07:18:30] <Tom_itx> it's one thing i see lacking over conventional cnc's
[07:20:20] <archivist> conventional users can afford a stack of pre set tools in holders
[07:20:32] <Tom_itx> yup
[07:21:12] <Tom_itx> those are not typically your hobyist machines
[07:21:16] <archivist> and some tools defy easy touch off
[07:21:59] <Tom_itx> yeah, i've had some cutters i wasn't really sure how to code for in my cad cam too
[07:22:17] <Tom_itx> at least to make the model look right
[07:22:25] <jthornton> what kind of cutters?
[07:22:30] <Tom_itx> tapered cutters
[07:22:34] <archivist> gear cutters
[07:23:30] <Tom_itx> or radius cutters
[07:23:42] <Tom_itx> is another one that makes you stop and go hmmmm
[07:24:18] <jthornton> you mean like convex radius end mills?
[07:24:30] <Tom_itx> not ball nose
[07:25:00] <Tom_itx> for outter corner radius
[07:25:30] <Tom_itx> on some parts we would let the cnc help us debur
[07:25:33] <jthornton> yea, you gotta know the tip diameter of them
[07:26:20] <archivist> on a gear cutter you want the centre line and pcd
[07:26:30] <Tom_itx> it's one of those things that just doent look right in the cad model
[07:27:44] <Tom_itx> then you go back 6mo later and look at it and wonder wtf that tool path is for
[07:29:10] <jthornton> lol
[07:29:46] <jthornton> I usually just create new tool paths unless it is a part that I do often and I've not found one of them yet
[07:29:55] <Tom_itx> sometimes you just hope the operator is smart enough to make adjustments at the machine
[07:31:01] <Tom_itx> when we did work for experimental it was like that. just make sets of 6 of every part and you may never see it again
[07:32:06] <archivist> mass production! /me usually making one offs
[07:32:30] <jthornton> I have one thing that I make that is up to 10 sets now! the rest are usually 1
[07:33:05] <Tom_itx> the gravy is when you can just shove the file out to the machine and turn it over to the operator
[07:33:58] <Tom_itx> in which JT-Shop's case he would just change hats and take a few steps
[07:35:06] <jthornton> I gave up on the hats a long time ago and just do everything myself with the one hat on
[07:35:19] <Tom_itx> heh
[08:47:23] <jdhNC> I need a X limit switch mount/cover for my G0704. Anyone have anything similar to save me the inspiration & design time?
[08:51:19] <archivist> I never had the inspiration for switches never mind covers for them
[09:04:09] <jdhNC> you never accidentaly hit hard end-of-travel things?
[09:21:44] <mrsun> hmm, when the material sparks sometimes, is it safe to assume the material is hardened? ... i find it very tough to run in the lathe :/
[09:21:52] <archivist> no, I use the hard end to set the machine home, then the software limits keep work inside usable limits
[09:21:56] <mrsun> (its from an axle .. dont know if they are hardened or not .. 60mm diameter)
[09:24:08] <archivist> carbide tool or blunt tool
[09:24:28] <mrsun> im trying to get to use the carbide tooling ... making new T nut :P
[09:24:57] <mrsun> got some small carbide cutters, they cut it .. but hss newly ground tool can take a cut like 5mm then it just wont cut anymore =)
[09:24:58] <jdhNC> so every startup, you manuall jog to one end and home?
[09:31:36] <archivist> jdhNC, yes (ran out of parport pins for switches really)
[09:32:50] <jdhNC> I have plenty of mesa pins to waste. I'd do them all separate if it wasn't such a pain to wire.
[10:27:36] <JT-Shop> jd896_fabshop: you still need my help?
[10:30:24] <archivist> any one need a big mill? https://www.apexauctions.co.uk/auction/itemDetails.htm?lotId=74159&utm_source=ActOn&utm_medium=Email&utm_campaign=Eaves
[10:35:50] <JT-Shop> can you email it to me?
[10:37:52] <jdhNC> I need a manual one that size.
[10:38:07] <archivist> I would email it to me first :)
[10:40:16] <archivist> JT-Shop, do you have the space to make a shed for it?
[10:40:38] <JT-Shop> I'm sure I do with 9 acres
[10:48:11] <jdhNC> you're going to need a bigger phase converter
[10:49:24] <JT-Shop> LOL
[11:04:49] <Jymmm> First thing you gotta mill is a new car just so you can say you did
[11:06:19] <Jymmm> And it has PANDUIT! lol
[11:06:40] <jdhNC> I bought panduit, and got some panduit with my enclosure... but had no room for it.
[11:23:32] <Connor> jdhNC: Got those covers boxed up.. I'll try to get them sent out today.
[11:23:44] <Connor> Gotta have the wife print the label and postage.
[11:24:16] <jdhNC> thanks!
[11:24:44] <jdhNC> I can paypal postage/materials/etc.
[11:24:58] <Connor> materials isn't a biggie.
[11:25:15] <Connor> Not sure about postage yet.
[11:26:15] <jdhNC> how did you attach your front estop box?
[11:26:58] <Connor> I clamped it to the main box and drilled two holes.. and then tapped them.
[11:27:29] <jdhNC> I was hoping to avoid drilling, but I don't think anything else will hold it securely enough.
[11:27:42] <Connor> drilling the pass-through hole was fun.. I just drilled a spot hole on both parts and drilled them bigger separately.
[11:28:06] <Connor> No real way around it.
[11:28:34] <jdhNC> pass-through what?
[11:28:41] <Connor> When I make my full enclosure, it, along with the main control box will move.
[11:29:29] <Connor> I'm using a DB9 cable up to main e-Stop box. I have a break-out inside to pass pwm into it.. and I need to bring the 120v line down into it for the AC relay.
[11:30:17] <Connor> pwm/5v/gnd/ccw relay + 120v from the chip guard switch.
[11:30:37] <Connor> Oh. and the spindle encoders too.
[11:31:40] <jdhNC> I have an separate SSR mounted in the enclosure for spindle A/C but I haven't hooked it up yet. I'm just going to power an outlet via the SSR.
[11:34:17] <Connor> Ah, okay. Yea, I used a Radio Shack Relay inside the e-Stop box for it.
[11:34:47] <Connor> running the +12v line up from the secondary charge pump relay.
[11:36:27] <jdhNC> I had scavenged a nice sub-panel with terminal strip, SSR and 4PDT relay. Used those for the estop circuit and added another SSR for spindle. It will be energized via an output pin through one of the 4p relay contacts
[11:36:35] <Connor> When/If I decide to do spindle CCW relay.. I'll have a 12v source I can run into the contact on the C43 board to trip it.
[11:37:28] <jdhNC> I'm not sure I care about reversing anymore. A tap head seems like it would be better/safer for tapping and I can't think of any other use.
[11:37:46] <Connor> probably true.
[12:05:55] <jdhNC> connor: do you have a Z switch mounted?
[12:06:04] <Connor> No. Just the X right now.
[12:06:14] <jdhNC> got pics of X?
[12:06:56] <jdhNC> it looks like the obvious places for a Z flag would be on top of the gibs
[12:08:08] <Connor> http://www.cnczone.com/forums/attachment.php?attachmentid=160579&amp;d=1338155034
[12:08:17] <Connor> http://www.cnczone.com/forums/attachment.php?attachmentid=160580&amp;d=1338155042
[12:08:44] <Connor> I need to cover it, because chips can land on top of it.. and cause a pre-mature endstop event. Had it happen already.
[12:09:54] <jdhNC> I saw a pic somewhere that someone had milled out a pocket for the switch and mounted it open-side to the mill for a combo cover/holder
[12:10:36] <jdhNC> my prox switches are too tall (or wrong orientation) to fit on X.
[12:11:05] <Connor> http://www.g0704.com/Projects.html
[12:11:18] <Connor> look for Home and LImit switches on Hoss page.. that's what I want to do for the Z.
[12:12:16] <Connor> I don't like how he's done the Y though.
[12:12:39] <jdhNC> http://www.cnczone.com/forums/attachment.php?attachmentid=153054&d=1329557652
[12:12:54] <IchGuckLive> Connor: as you know evervone makes its own build
[12:13:22] <Connor> IchGuckLive: Yup. :) To each his own as we say.
[12:14:03] <jdhNC> I think I will have to take the X back off to mount anything
[12:14:04] <IchGuckLive> what RPM you want at the spindle
[12:14:28] <Connor> IchGuckLive: ? For the 4th Axis ?
[12:14:46] <IchGuckLive> you can go flex with a blet 1inch wide over 2 cones
[12:15:28] <IchGuckLive> Belt !
[12:16:24] <Connor> probably somewhere between 2500-3000 RPM on the 4th Axis spindle. Probably 2 modes, one for indexing (low gear) and one for turning high gear
[12:17:04] <IchGuckLive> as on a real lathe
[12:17:08] <Connor> yea.
[12:17:26] <Connor> I'll probably use a 4 or 5" Chuck on it.
[12:17:39] <IchGuckLive> good to go
[12:18:28] <Connor> I have a 4" on a R8 that, once I get 4axis built.. I'll remove the R8 arbor from it.. and use it on 4th axis
[12:19:51] <IchGuckLive> so 1HP is a litel low with the MY1020
[12:20:36] <Connor> From my understanding.. Rotary carving isn't hard to do.. You just use the 4th axis as if it's the Y axis.. center the Y axis up correctly and your good to go.
[12:21:29] <IchGuckLive> agree on that
[12:21:46] <IchGuckLive> also the motor is goot to handle by the electronics
[12:22:26] <IchGuckLive> do you got a mesa atattched ?
[12:22:26] <Connor> I only have a 48v PSU.
[12:22:35] <Connor> No. Just ParPorts ATM
[12:23:38] <IchGuckLive> Heavy Thunder hedding my way its gettig dark outside by the seconds
[12:23:53] <Connor> That's not good.
[12:24:16] <IchGuckLive> if i feel the first lightning i will close down
[12:24:24] <Connor> Heard that.
[12:24:45] <IchGuckLive> http://www.wetter.com/wetter_aktuell/niederschlagsradar/deutschland/ RADAR
[12:25:07] <Connor> Wowsers.
[12:25:39] <Connor> Hmm.. 36v with 48v PSU..
[12:25:55] <Connor> http://www.automationtechnologiesinc.com/products-page/nema23-m-dc-servo-motor/skewed-servo-dual-shaft-3
[12:26:18] <IchGuckLive> i woudent go with only one PSU at the spindle and all the axis that will force trouble
[12:27:07] <Connor> http://www.ivdc.com/cnc/conversion/enclosure.JPG
[12:27:30] <Connor> I've got room for another PSU in top right if I remove the usless CDROM
[12:27:58] <IchGuckLive> nice price and the driver from Gecko ?
[12:28:25] <IchGuckLive> The speed is good if you go for Direct
[12:28:35] <Connor> http://www.automationtechnologiesinc.com/products-page/dc-servo-motor-driver
[12:28:42] <IchGuckLive> with a 1000Encoder its perfect
[12:28:54] <Connor> Either the G32-X or that Dugong
[12:29:01] <Connor> G320X
[12:29:08] <IchGuckLive> as i said yesterday
[12:29:09] <jdhNC> the gecko only does step/dir?
[12:29:19] <IchGuckLive> yes step dir
[12:30:08] <Connor> So, it handles the encoders directyly.
[12:30:34] <IchGuckLive> does automotion sell on ebay via paypal or amazon
[12:30:42] <jdhNC> so you have to have a stepgen for speed?
[12:30:56] <Connor> IchGuckLive: They take paypal direct from the site.
[12:31:03] <jdhNC> Ich: they are keling's new name
[12:31:27] <Connor> jdhNC: I think so, you treat it just like a stepper at that point??
[12:32:45] <Connor> 42 oz-in constant torque good enough for 1:1 drive ?
[12:33:18] <IchGuckLive> leadscrew pitch ?
[12:33:31] <Connor> this for spindle drive
[12:33:43] <Connor> driving that 4" chuck.
[12:33:50] <IchGuckLive> no way
[12:34:29] <Connor> Rated at 230 oz-in peak torque / 42 oz-in constant torque
[12:37:26] <IchGuckLive> Blue sky ahad here no lightning at all
[12:38:30] <Connor> 4th axis is going to have to wait a while.
[12:39:09] <Connor> maybe I just use stepper on my rotary table and use the mini lathe for turning.
[12:40:29] <Jymmm> For the record... JB-Weld *DOES* contain iron particles. But they are saying as it cures, the polymer "encapsulates" these particles. That is still yet to be determined as still curing.
[12:41:00] <Connor> Jymmm: You STILL going on about that? :)
[12:41:27] <Jymmm> Connor: I just got off the phone with the General Manager of JB-Weld.
[12:42:09] <TekniQue> nice
[12:52:45] <Tom_itx> Jymmm did he send you some free samples?
[12:53:43] <Jymmm> Tom_itx: Not yet, but might after the product cures and I let him know the results.
[12:55:27] <TekniQue> what are you fixing?
[12:55:40] <TekniQue> I think jb weld is too runny
[12:55:42] <TekniQue> too liquid
[12:55:49] <TekniQue> great product otherwise
[12:55:51] <Jymmm> hardly
[12:56:24] <Jymmm> it's as thick as axel grease, at least for me.
[12:56:32] <TekniQue> I've had problems with it running away before it cures
[12:56:40] <syyl> tried warming it up?
[12:56:44] <TekniQue> nope
[12:56:49] <syyl> then it should get liquid like water :D
[12:57:51] <TekniQue> if I wait 10 minutes after mixing it, then it's easier to make it maintain its shape
[12:58:32] <TekniQue> jb weld also cures the slowest of all these steel epoxies I've been using
[12:58:57] <Jymmm> TekniQue: it's not crazy glue
[12:58:59] <TekniQue> some of them will be rock hard in 10 minutes
[12:59:19] <andypugh> The 2-part eppoxy putties can be very useful.
[12:59:29] <syyl> many of the "slow" epoxies can be cured faster using heat
[12:59:45] <Jymmm> andypugh: I haven't seen those on the shelf anymore, I even looked for them the other day.
[12:59:47] <syyl> or slowed down with the fridge
[13:00:19] <Jymmm> andypugh: I'l ask the GM when I speak to him next.
[13:02:28] <andypugh> Jymmm: http://www.uktoolcentre.co.uk/Shop/p~40752~Plumber~Fix-Leak-Fixer-Single-64g.html?utm_campaign=googleshopping&utm_source=GoogleBase&utm_medium=Product+Search&gclid=CO7PosDYvLACFUdlfAodhEz_pw
[13:02:44] <andypugh> (I have no way to do a US-specific search, so you will have to find it yourself)
[13:37:17] <alex4nder> hey
[13:38:09] <Jymmm> andypugh: it's all good. JB-Weld *USED* to have the putty, just not sure if this store didn't stock it, or it's no longer made is all.
[13:38:16] <andypugh> http://www.ppauctions.com/eshots/20120621/
[13:40:02] <Jymmm> andypugh: archivist found this for you https://www.apexauctions.co.uk/auction/itemDetails.htm?lotId=74159&utm_source=ActOn&utm_medium=Email&utm_campaign=Eaves
[13:41:02] <archivist> I found it for me but lack of space and money stops me from playing!
[13:41:12] <andypugh> It a bit small for my needs.
[13:41:25] <archivist> lies
[14:41:01] <andypugh> Currently designing a Hexapod camera "tripod" for a friend. He wants a star-tracker.
[14:41:30] <andypugh> I know it is trivial to achieve with 2 bits of wood, a hinge and one stepper, but that's no fun.
[14:42:24] <Jymmm> andypugh: replace the hinge with duct tape, and the sticks with EPS =)
[14:43:19] <Jymmm> andypugh: or hell, make it ALL out of duct tape, there's a challenge for ya
[14:50:59] <mhaberler> like so? http://www.youtube.com/watch?v=b61f6bAuytw
[15:11:18] <andypugh> 1294381 days 20 hours remaining - 7.90 GB of 7.03 GB. Something wrong there
[15:14:25] <micges> andypugh: windows?
[15:14:46] <andypugh> Yes. Autodesk Inventor download, in fact.
[15:15:57] <micges> heh
[15:16:25] <andypugh> This is the Autodesk Download Wizard thingy that is messing up downloading its own file.
[15:22:42] <Jymmm> mhaberler: Ya know... That would be kinda interesting to do.
[15:23:27] <mhaberler> he's 'Duct Tape Ambassador' for 3M
[15:29:41] <Jymmm> really?
[15:30:10] <Jymmm> It make perfect sense marketing wise.
[15:30:41] <Jymmm> But I mean the whole head-to-head car thing.
[15:31:55] <Jymmm> hydraulic steering would deal with the inverse thing.
[15:32:53] <Jymmm> just have to deal with the in drive / neutral thing transmission wise.
[15:34:41] <Jymmm> and the gas tank right behind the driver thing too =)
[16:04:15] <DJ9DJ> gn8
[16:25:14] <jd896> Evening all
[16:25:32] <JT-Shop> evening
[16:25:44] <JT-Shop> rather late for you I suppose
[16:25:56] <jd896> 10:15 here
[16:27:03] <JT-Shop> you get your MDI commands to working?
[16:28:07] <jd896> I did not John could you point me to some useful manuals
[16:28:20] <jd896> As.
[16:29:15] <JT-Shop> it just takes a few things, do you have your pyvcp button working?
[16:30:22] <jd896> Yeah the botton is there but where are the pin links
[16:31:10] <JT-Shop> do you have the MDI command in your ini file in the HALUI section?
[16:31:35] <jd896> Yes I have done that
[16:31:42] <andypugh> Hmm, 2220 here too. I ought to make my dinner.
[16:32:39] <jd896> Come to think of it I tried to add two command buttons that maybe where I've gone wrong
[16:32:45] <JT-Shop> open up the show hal configuration window and look for the names of your pyvcp pin and the mdi pin
[16:33:02] <JT-Shop> you can have more than one
[16:33:05] <jd896> Anypugh are you uk based
[16:33:44] <jd896> Ah im at home now left my laptop at the shop next to the profiler
[16:33:59] <jd896> Carnt get to a pc ATM
[16:34:25] <JT-Shop> the pin reference http://linuxcnc.org/docview/html/gui/halui.html
[16:34:50] <JT-Shop> read the MDI section it should be clear
[16:35:41] <andypugh> who was looking at Tormachs a while ago?
[16:35:46] <JT-Shop> so a net my-mdi halui.mdi-command-00 <= pyvcp.mybuttonname
[16:35:57] <andypugh> logger[psha]:
[16:35:57] <logger[psha]> andypugh: Log stored at http://psha.org.ru/irc/%23linuxcnc/2012-06-07.html
[16:36:22] <jd896> That's where I've gone wrong with the numbering
[16:36:28] <JT-Shop> I think andypugh missed your question while cooking his bubbles and squeak
[16:36:45] <JT-Shop> the manual clear it up for you?
[16:37:29] <jd896> Yes mate spot on its just nowing where too look
[16:37:54] <andypugh> jd896: Yes, I am her Brittanic Majesty's United Kingdom. Basildon, in fact.
[16:38:08] <JT-Shop> :)
[16:38:32] <andypugh> Gigs-: Were you looking at Tormach?
[16:38:53] <jd896> Ah Got a spanner monkey friend down there
[16:39:39] <jd896> Basildon I mean
[16:39:41] <andypugh> How terribly working class!
[16:40:11] <jd896> Pah my previous job title that
[16:40:44] <jd896> That and "Hgv technician"
[16:41:14] <andypugh> "Lorry Wrangler"?
[16:41:34] <andypugh> Up to 13.5GB of my 7.3 GB now
[16:41:38] <jd896> Yeah
[16:42:20] <jd896> Really enjoyed it as it goes
[16:49:15] <frallzor> its odd how one operations works like a charm one day
[16:49:18] <frallzor> * -s
[16:49:29] <frallzor> then the same type the next day = crap
[16:50:15] <jd896> Can I set a feed rate be set till further notice in a sub routine ?
[16:50:55] <jd896> #and it stay set after the sub has finished
[16:51:18] <Gigs-> andypugh: yes
[16:54:08] <jd896> Sorry got disconnected there poor iPhone lime chat
[16:58:09] <jd896> Did any one reply is it possible?
[16:59:38] <Gigs-> no one answered
[17:00:53] <jd896> Bugger
[17:01:12] <JT-Shop> jd896: yes, use global or named
[17:01:29] <JT-Shop> http://linuxcnc.org/docview/html/gcode/overview.html#_parameters_variables_a_id_sec_parameters_a
[17:01:36] <frallzor> I hate tools sometimes =(
[17:02:44] <JT-Shop> I hate when I can'
[17:02:49] <JT-Shop> t find a tool
[17:03:15] <frallzor> yesterday my alu-cutter was doing terrific
[17:03:24] <frallzor> today, all hell broke loose
[17:03:28] <frallzor> and the tool aswell =)
[17:05:19] <jd896> Would that be a named vale stays in the sub and a global stays after the sub
[17:06:11] <jd896> Could I get the feed from say a pyvcp box?
[17:08:08] <JT-Shop> afaik the only local variables in a subroutine are 1-30
[17:08:33] <JT-Shop> like a spin box to set the F numer?
[17:08:44] <jd896> Yeah
[17:08:49] <JT-Shop> hmmm
[17:08:59] <andypugh> Gigs-: Have you seen the Smithy machines?
[17:09:10] <jd896> Sounds like a nice touch
[17:09:17] <andypugh> A complete LinuxCNC / Mesa setup all ready to go,
[17:11:48] <JT-Shop> jd896: I can't think of a way to do that off the top of my head
[17:12:43] <frallzor> even though one fails its fun to see what things could have been =) http://www.lolz.se/uploader/pics/test%20fotos.jpg allmost a chassis
[17:12:49] <andypugh> frallzor: That was the one-flute?
[17:12:53] <JT-Shop> you wanting to change the F while a program runs?
[17:13:04] <frallzor> andypugh indeed
[17:13:18] <frallzor> worked like a charm yesterday, not a single sign of wear and tear
[17:13:40] <frallzor> but like 2nd cut today, like 40mm cuts, smearing alu
[17:14:12] <andypugh> I guess it needs a clean?
[17:14:22] <frallzor> nah it was clean, checked before use
[17:14:30] <frallzor> since it was first time yesterday i used it
[17:14:39] <jd896> No just to set at start of cut then in the end cut sub change back to rapid
[17:14:43] <andypugh> Spindle running the right direction?
[17:14:50] <frallzor> yup, same like yesterday
[17:14:58] <frallzor> no changed at all
[17:15:00] <frallzor> *S
[17:15:17] <frallzor> except bad piece and tool is now in tool-heaven
[17:16:02] <JT-Shop> jd896: you can pass the F info to your sub when you call it
[17:16:10] <frallzor> but I noticed some lifting of the sheet i was machining, I assume it was that that casued it
[17:16:53] <jd896> So how would we do that
[17:17:21] <jd896> With the box ?
[17:19:27] <andypugh> O100 CALL <sub> [1000]
[17:21:12] <jd896> That would be in the gcode wouldn't it Andy
[17:22:23] <andypugh> Yes. Sorry, I misunderstood the question
[17:22:41] <jd896> No worries
[17:25:17] <Tom_itx> JT-Shop what other useful MDI commands have you 'buttonized'?
[17:27:28] <JT-Shop> touch off
[17:27:46] <Tom_itx> what are you using as a touch pad?
[17:27:55] <jd896> Jt looking at your touch off sub don't you pull values front some ware outside the sub
[17:27:55] <JT-Shop> 0.375" dowel
[17:28:07] <Tom_itx> how does that work?
[17:28:20] <Tom_itx> i mean, i know what you do with the dowel...
[17:28:24] <JT-Shop> I pass the values to the touchoff sub yes when I call it
[17:28:28] <Tom_itx> the routine i'm talking about
[17:28:56] <JT-Shop> hmmm G10 something
[17:29:06] <jd896> Could I have the va
[17:30:06] <jd896> Feed in a box like we said then have an enter button that makes axis reload the nc file
[17:31:01] <JT-Shop> z touch off MDI_COMMAND = G10 L20 P1 Z0.375
[17:31:03] <jd896> That could then pass the entered feed to the sub when called could it not ?
[17:40:26] <jd896> Ha
[17:40:32] <jd896> Woops
[17:41:13] <jd896> Can we hold this thought till morning Jt? Gotta get some sleep
[17:41:17] <jd896> Night all
[17:43:56] <JT-Shop> oknight
[17:55:46] <Jymmm> What to google for so see an example (video?) of a mechanical directional change, much like a winder going back and fourth?
[17:56:42] <JT-Shop> fishing reel
[17:57:20] <Jymmm> TY!!!
[17:57:29] <JT-Shop> but that would be a good application for your stepper as you could change pitch with different rope diameters
[17:58:13] <Jymmm> JT-Shop: Hell, I might just buy some reels as is, KISS
[18:00:13] <Jymmm> JT-Shop: I'm still working on how to cut and start the winding of a new hank. I have an idea, but it requires a tube in a tube where one of the tubes not only rotates, but moves along it's linear axis as well. Much like a slide whistle
[18:06:46] <Jymmm> I like the crown... http://www.youtube.com/watch?v=b-fqDz5ouyM&feature=related
[18:06:49] <JT-Shop> we cut mesh wire with one stationary tube and one moving tube with tight fit to shear off the wire
[18:07:38] <JT-Shop> we used a mixmaster to make deep see fishing reels on the rigs
[18:07:59] <Jymmm> JT-Shop: I was thinking something along those lines, with the "cut" operation initiated by a reversal of one of the tubes
[18:09:04] <Jymmm> I still need to fit in there of the clamp and cut so it can begin the next hank after the cut operation.
[18:10:05] <andypugh> Jymmm:
[18:10:06] <andypugh> http://youtu.be/3aobPgGzB-U
[18:11:40] <Jymmm> andypugh: interesting, seems simple enough. just have to figure out how to 1) tell it when it's at the end(s), and 2) it's speed of going back and forth.
[18:11:45] <Jymmm> andypugh: ty
[18:13:25] <Jymmm> http://www.youtube.com/watch?v=9qEhyQfbImY&feature=endscreen&NR=1
[18:13:31] <Jymmm> square hole
[18:15:00] <andypugh> Easier with CNC and spindle-synchronised motion :-)
[18:16:45] <Jymmm> http://www.youtube.com/watch?v=5ISj3Ad4vBU&NR=1&feature=fvwp
[18:17:02] <Jymmm> andypugh: =)
[18:18:27] <Jymmm> http://www.youtube.com/watch?v=guTSrF7J6Y0&feature=related
[18:20:19] <andypugh> Hmm, midnight. I should have made dinner earlier.
[18:20:32] <Tom_itx> make breakfast early
[18:20:54] <Jymmm> andypugh: Macho Beef burrito with extra cheese and sour cream =)
[18:21:22] <andypugh> On the plus side, I have made the PWM to voltage board for my milling machine VFD
[18:21:32] <JT-Shop> cool!
[18:21:42] <Tom_itx> what cad package did you use?
[18:31:04] <andypugh> Hmm?
[18:31:19] <andypugh> I used stripboard and surface-mount
[18:32:43] <Tom_itx> oh
[18:33:54] <andypugh> It's very simple once you realise that you need to use a totem-pole output opto
[18:33:56] <pfred1> andypugh did you see the box of junk I scored last weekend?
[18:34:07] <andypugh> Yes
[18:34:17] <PCW> I'm happy, I can now program totally blank 6I25 with a PCIE utility (something not possible with the 5I25)
[18:34:21] <pfred1> it had a piece of strip board in it
[18:34:45] <pfred1> nice shiny new and untouched
[18:35:20] <pfred1> it has some mystery etched board too
[18:36:02] <andypugh> Is the 6i25 on the market yet? I accidentally bought a PCIe motherboard.
[18:36:35] * JT-Shop wonders what to wipe the top of the anvil down with now that it is not rusty
[18:36:45] <pfred1> paste wax
[18:36:53] <PCW> Yep its available now
[18:37:01] <Tom_itx> any pics of it?
[18:37:04] <JT-Shop> ok
[18:37:07] * pfred1 likes Mothers
[18:37:15] <pfred1> though Johnsons is OK too
[18:37:18] <r00t4rd3d> perfert
[18:37:25] <r00t4rd3d> or pervert
[18:37:25] <JT-Shop> I have some Mothers tire black
[18:37:42] <pfred1> I fly cut my anvil
[18:38:12] <pfred1> http://img26.imageshack.us/img26/1415/anvilspark.jpg
[18:38:30] <PCW> andypugh did you buy a DN2800?
[18:38:46] <pfred1> I did the horn with an angle grinder and flap wheels
[18:39:00] <pfred1> it wasn't as bad as I thought it'd be
[18:39:49] <andypugh> PCW Yes. I can't remeber why, but it seemed a good idea at the time.
[18:40:09] <PCW> it nice with its built in power supply
[18:40:36] <pfred1> I want to get into making switching PSUs
[18:40:48] <Tom_itx> how big?
[18:40:52] <pfred1> I read so much about them they're kind of exciting
[18:40:59] <PCW> and alexander had really good latency results
[18:41:35] <Jymmm> andypugh: you dont like the mobo?
[18:41:41] * JT-Shop went shopping in the automotive section of the garage but sadly found no paste wax
[18:42:03] <pfred1> in PC PSUs the 110-220 switch on the back takes a voltage doubler out of circuit
[18:42:16] <djdelorie> in our local hardware store, it's with floor cleaners
[18:42:20] <pfred1> JT-Shop I live in a swamp now so I'm constantly battling rust
[18:42:20] <Tom_itx> JT-Shop look for your old surfboard and the sexwax by it
[18:42:21] <PCW> Andy we shipped a 6I25 to you yesterday I think
[18:42:23] <JT-Shop> pfred1: nice
[18:42:35] <pfred1> paste wax is a god send
[18:42:39] <Jymmm> djdelorie: JT's garage
[18:42:54] <pfred1> thouth I clear coat lots of stuff too
[18:42:54] <Jymmm> djdelorie: JT's Commesary
[18:43:07] <djdelorie> yeah, but it's not in the automotive section of our hardware store. JT needs to look in the floor cleaner section of his garage...
[18:43:10] <JT-Shop> I use LPS 2 and 3 most of the time and 3 has some wax in it
[18:43:32] <pfred1> i wax my pliers
[18:43:35] * djdelorie uses Butcher's Bowling Alley Wax
[18:43:38] <pfred1> so they don't rust up on me
[18:43:41] <Jymmm> djdelorie: JT-Shop went shopping IN HIS GARAGE, in it's automotive section.
[18:43:55] <pfred1> I got tired of wire wheeling them all twice a year
[18:44:05] <djdelorie> I know. He needs to look IN HIS GARAGE, in the floor cleaner section. Wow, it's hard to get a joke in edgewise around here.
[18:44:12] <JT-Shop> I know I had a tub of it somewhere...
[18:44:37] <Jymmm> djdelorie: It doesn't exist, he never cleaners the floor! DUH!
[18:44:43] <Jymmm> cleans
[18:44:52] <JT-Shop> floor cleaner section only has mops, brooms, floor sweep and vacuum cleaners
[18:44:59] <pfred1> djdelorie http://www.instructables.com/id/Under-Shelf-Dual-Monitor-Support-Arms/
[18:45:11] <Jymmm> JT-Shop: and layers of cobwebs
[18:45:24] <pfred1> check out that mad woodworking!
[18:45:26] <Tom_itx> Jymmm, the can should be full then
[18:45:30] <JT-Shop> not many Jymmm
[18:45:56] <djdelorie> hmmm... I hadn't considered using wood for monitor supports. I always figured the last bits needed to be steel
[18:46:20] <pfred1> I used oak from stair treads it might as well be steel
[18:46:27] <Jymmm> See all those toxic cleaners are bad for you... bobcat and a dumpster is the way yo clean the floors, desk, etc
[18:46:36] <djdelorie> oak is soft compared to some of the woods I've used
[18:46:49] <djdelorie> but red oak is my preferred wood anyway
[18:46:52] <pfred1> this was well seasoned
[18:46:58] <djdelorie> even so :-)
[18:47:01] <Jymmm> red oak? for what?
[18:47:04] <djdelorie> everything
[18:47:09] <Jymmm> ew
[18:47:13] <pfred1> oak checks too much
[18:47:16] <r00t4rd3d> i like oak too
[18:47:34] <pfred1> poor man's wood
[18:47:35] <Jymmm> I like oak too, but there are lots of others out there too
[18:47:47] <r00t4rd3d> like morning
[18:47:52] <djdelorie> http://www.delorie.com/wood/desk/photos/img_1986.html
[18:48:02] <pfred1> mahogany is nice
[18:48:10] <r00t4rd3d> yeah but expensive
[18:48:29] <r00t4rd3d> pine, now there some good stuff
[18:48:37] <pfred1> djdelorie mill that yourself?
[18:48:39] <Jymmm> for kindling
[18:48:51] <djdelorie> I buy it rough and dry, and do the finish milling myself
[18:49:02] <djdelorie> otherwise it's not flat enough
[18:49:02] <Jymmm> djdelorie: thats what she said
[18:49:13] <r00t4rd3d> Jymmm, or for building the house your currently living in.
[18:49:23] <pfred1> djdelorie http://i.imgur.com/QPZtB.jpg
[18:49:36] <pfred1> I cut that down myself
[18:49:51] <pfred1> we got awesome oak here
[18:49:56] <djdelorie> a little *too* rough for my taste, but cool anyway. I have a few small bits I milled myself, but nothing big
[18:50:31] <pfred1> yeah not my usual style I was channeling Nakashima
[18:50:57] <pfred1> to think in the 70s I could have bought his stuff for peanuts
[18:51:12] <pfred1> I used ot see him on the sidewalk in New Hope all the time
[18:52:24] <pfred1> he holds the worlds record today for a woodwork piece selling at auction
[18:54:03] <JT-Shop> gnipsel.com/shop/videos/IMG_0232.MOV
[18:54:12] <pfred1> http://www.skinnerinc.com/blog/2010/10/why-do-people-pay-so-much-for-nakashima-furniture.php
[18:55:19] <pfred1> JT-Shop I bet they don't misplace their paste wax
[18:56:33] <JT-Shop> lol, last time I remember it was two houses ago in LaPlace Louisiana
[18:57:13] <JT-Shop> but I'm working at better orginization now
[18:57:22] <djdelorie> did you check behind the couch?
[18:57:25] <pfred1> I don't think my house is worth what that table sold for
[18:57:28] <JT-Shop> crap my dad had a table that looked like that
[18:58:00] <pfred1> did it say George Nakashima on it?
[18:58:37] <pfred1> I think if they guy coughed in a napkin it's be worth thousands today
[19:00:08] <JT-Shop> I have an oak tree that is about 4' across and burled from top to bottom
[19:00:22] <pfred1> get out the chainsaw!
[19:00:24] <JT-Shop> I hope it out lives me
[19:00:52] <Tom_itx> don't aim your cannon at it
[19:00:57] <JT-Shop> lol
[19:01:00] <Tom_itx> it may have a chance
[19:01:19] <pfred1> there is a house here with a cannonball in it
[19:01:35] <djdelorie> every time I mention my metal lathe to friends, they always ask if I've made a cannon yet.
[19:01:38] <pfred1> called the cannonball house of course
[19:01:41] <JT-Shop> a better shot gnipsel.com/shop/videos/IMG_0233.MOV
[19:03:25] <pfred1> make a miniture 88mm flak gun
[19:04:17] <andypugh> Well, while we are on "things we made out of wood" http://www.bodgesoc.org/Slaithwaite2/end_stairs.JPG
[19:04:20] <JT-Shop> I want to make a potato gun that looks like a WW2 Mortar
[19:04:41] <JT-Shop> nice Andy
[19:05:16] <Jymmm> http://v6.tinypic.com/player.swf?file=2zhk1h0
[19:05:33] <pfred1> andypugh that beam in the back looks a bit old
[19:05:37] <JT-Shop> I stayed in a hotel in Amsterdam on the river that was a warehouse during the sailing days and had some huge timbers that made up the frame work
[19:05:37] <andypugh> stud walls take a lot longer when they are made out of oak and mortice and tennoned, you can see a bit of one top left.
[19:05:44] <r00t4rd3d> JT-Shop, find a way to mortar an egg
[19:05:49] <r00t4rd3d> without breaking it
[19:06:05] <JT-Shop> trebuche
[19:06:12] <r00t4rd3d> lol
[19:06:12] <andypugh> pfred1: Yes, that second beam back might well be 400 years old.
[19:06:16] <pfred1> someone is using my street as a drag strip again
[19:06:32] <Jymmm> JT-Shop: There ya go, your own personalize cannon url... http://tinyurl.com/jtcannon
[19:06:32] <r00t4rd3d> GET OFF MY LAWN!
[19:06:58] <pfred1> r00t4rd3d they'd be little more than fertilizer by the time they hit my lawn
[19:07:14] <andypugh> I made the door and partition here too: http://www.bodgesoc.org/Slaithwaite2/Hall2.JPG
[19:07:39] <r00t4rd3d> house we just got done with : http://imgur.com/a/xmYiX
[19:07:47] <r00t4rd3d> roof trusses will be here in a couple weeks
[19:08:22] <pfred1> ah the woods aren't too thick at this angle http://img139.imageshack.us/img139/5026/p4110020.jpg
[19:08:38] <andypugh> I am going to guess that took less than 20 years, and will be warm and dry.
[19:08:56] <JT-Shop> dinner time and I'm the head chef today... so off I go
[19:09:08] <JT-Shop> good night
[19:09:17] <Jymmm> Cya groucho
[19:09:19] <r00t4rd3d> mac and cheese?
[19:09:31] <r00t4rd3d> w/ hotdogs
[19:09:38] <r00t4rd3d> and ketchup
[19:09:50] <pfred1> r00t4rd3d what did we all do before OSB?
[19:10:12] <Jymmm> with REAL processed imitation cheese food.
[19:10:17] <pfred1> r00t4rd3d out of season that stuff drops to $5.24 a sheet here!
[19:10:38] <r00t4rd3d> not much osb in that house
[19:11:15] <pfred1> stuff is horrible to cut though isn't it?
[19:11:27] <andypugh> I placed an order with Crucual at 6pm yesterday for next-day delivery. They sent me an email at 9pm today saying they had packed it.
[19:11:52] <r00t4rd3d> ive gotten crucial orders the next day, free shipping
[19:12:09] <r00t4rd3d> if you order early enough
[19:12:25] <andypugh> I didn't really epect it today, but I was kind of thinking they might catch todays post...
[19:12:55] <pfred1> when I order stuff next day it takes 3 days when I order it ground it is here by the next day
[19:12:57] <r00t4rd3d> pfred1, not too bad. I cut that arch out in the "basement".
[19:13:04] <r00t4rd3d> with a jig saw
[19:13:17] <pfred1> the dust off OSB nakes me itchy
[19:13:22] <r00t4rd3d> http://i.imgur.com/8CdR6.jpg
[19:13:44] <r00t4rd3d> looks goofy now with no pillars installed yet.
[19:14:08] <pfred1> I have the same broom
[19:14:17] <r00t4rd3d> the green POS?
[19:14:18] <Jymmm> pfred1: Stop buying natural OSB made from poison ivy/oak =)
[19:14:19] <andypugh> Looks properly roomy.
[19:14:20] <pfred1> home depot special
[19:14:43] <r00t4rd3d> we go through 10 brooms a year
[19:14:44] <pfred1> I don't use it much it's OK I guess
[19:14:44] <Jymmm> r00t4rd3d: what the height?
[19:14:59] <pfred1> IU don't have much floor to sweep anymore
[19:15:23] <Jymmm> pfred1: bobcat + dumpster would resolve that =)
[19:15:42] <r00t4rd3d> Jymmm, im not sure of the exact number, 6 rows is like 9 feet
[19:15:53] <pfred1> my days of resolving those sorts of things are behind me now
[19:15:58] <Jymmm> r00t4rd3d: k, looks short =)
[19:17:01] <pfred1> we'd scrap floors with an H beam in a grabber bucket
[19:17:13] <pfred1> bobcats are for amateurs
[19:17:46] <Jymmm> pfred1: I was being kind to your walls =)
[19:18:02] <r00t4rd3d> 3 of us built that
[19:18:17] <pfred1> that job went south when we couldn't recover a wall sample to lab test
[19:18:27] <pfred1> so they all had to go
[19:18:32] <r00t4rd3d> was not fun at all. normally we do wood framing.
[19:19:46] <r00t4rd3d> those nudura blocks suck for cut up walls
[19:20:03] <r00t4rd3d> a square building they would be great
[19:20:21] <pfred1> want suck swing 18" custom split face block all day
[19:20:40] <r00t4rd3d> im an animal
[19:20:53] <r00t4rd3d> ill swing 2
[19:21:09] <pfred1> they're 80 pounds a piece
[19:21:16] <r00t4rd3d> lol
[19:21:22] <r00t4rd3d> okay 3
[19:21:24] <pfred1> well they are
[19:21:53] <pfred1> a few pallets of those will tame you
[19:22:27] <r00t4rd3d> you see that deck, 150 sheets of 3/4 advantec, like 100 pounds a piece
[19:22:32] <pfred1> I worked for a scaffolding company that used custom laminated planks
[19:22:49] <pfred1> they imported them by the boat load from Sweeden
[19:22:54] <r00t4rd3d> lol
[19:22:58] <pfred1> no joke
[19:23:02] <r00t4rd3d> bet that was cheap
[19:23:04] <pfred1> whole boat
[19:23:21] <pfred1> yeah well they were kinda big time like they did the statue of liberty
[19:23:27] <pfred1> the olympics
[19:23:39] <pfred1> things you may have yeard of
[19:23:42] <pfred1> heard of
[19:24:02] <r00t4rd3d> i cant stand the olympics
[19:24:06] <pfred1> one job the scaffolded burnt to the ground
[19:24:15] <pfred1> but the place didn't collapse
[19:24:20] <pfred1> because of the scaffolding
[19:24:27] <r00t4rd3d> laminated beams burn great
[19:24:41] <pfred1> I never did find out how that got resolved
[19:24:43] <r00t4rd3d> we use triple lams all the time and save the scraps for camp wood
[19:25:28] <pfred1> http://www.safway.com/
[19:26:57] <pfred1> http://i.imgur.com/jvC9r.jpg
[19:28:42] <jdhNC> anyone try knife sharpening with a cnc mill?
[19:29:23] <pfred1> jdhNC I'm partial to Arkansas stones myself
[19:29:35] <jdhNC> you are not sufficiently lazy
[19:29:38] <pfred1> medium and hard
[19:30:10] <pfred1> I have knives that cost over $100
[19:30:29] <pfred1> cryo Solingen
[19:30:46] <pfred1> stuff is amazing
[19:31:34] <pfred1> I want to check out that ceramic stuff though
[19:34:22] <pfred1> for now the best knives i have are black twins Henckels though
[19:37:29] <r00t4rd3d> ebay link?
[21:09:45] <r00t4rd3d> or not
[21:17:50] <pfred1> the missing link
[21:18:41] <r00t4rd3d> im going to work on my rig
[21:18:55] <pfred1> I'm going to sit here and get drunk
[21:19:39] <r00t4rd3d> thats not very productive or morning friendly.
[21:19:50] <pfred1> I got plenty done today
[21:20:24] <pfred1> only wine and sometimes hard liquor hangs me over
[21:20:40] <r00t4rd3d> drink everynight?
[21:22:54] <r00t4rd3d> must be to busy drinking to answer
[21:23:25] <pfred1> I was deeply engrossed reading a webpage sorry
[21:23:40] <r00t4rd3d> lol
[21:23:45] <pfred1> r00t4rd3d did you see my project?
[21:24:04] <r00t4rd3d> couldnt say
[21:24:09] <r00t4rd3d> perhaps
[21:24:09] <pfred1> http://www.instructables.com/id/Under-Shelf-Dual-Monitor-Support-Arms/
[21:25:08] <r00t4rd3d> thats one dirty keyboard
[21:25:19] <pfred1> yeah well it is out in my garage
[21:25:24] <r00t4rd3d> haha
[21:25:49] <pfred1> gets kinda dusty out there when I'm wire wheeling or sawing wood
[21:26:36] <r00t4rd3d> i havent gotten to dust removal yet
[21:26:48] <r00t4rd3d> dust/debris/etc
[21:26:51] <pfred1> pfft my lungs are dust extraction
[21:27:16] <pfred1> its worked for 48 years
[21:27:48] <pfred1> actually I've noticed with a high seiling dust doesn't circulate as much
[21:27:52] <pfred1> ceiling even
[21:28:00] <r00t4rd3d> i want to get a new shopvac but them cock suckers are too loud.
[21:28:07] <pfred1> my old shop had a much lower ceiling and the stuff would go everywhere
[21:28:08] <Jymmm> pfred1: But your only 17
[21:28:23] <pfred1> my only 17 what?
[21:28:37] <pfred1> my mill is older than 17
[21:28:47] <r00t4rd3d> lol
[21:28:51] <pfred1> I bought it new too
[21:28:55] <r00t4rd3d> re-read
[21:29:05] <Jymmm> pfred1: That 48yo sucker you see in the mirror is really 17. So your dust filtration FAIL!
[21:29:06] <pfred1> you're
[21:29:09] <r00t4rd3d> <pfred1> its worked for 48 years
[21:29:14] <r00t4rd3d> Jymmm> pfred1: But your only 17
[21:29:29] <pfred1> your is the possessive
[21:29:41] <pfred1> my what?
[21:29:56] <r00t4rd3d> i use the opposite all the time just to piss people off
[21:30:08] <Jymmm> r00t4rd3d: I think he has achieved drunkness!
[21:30:20] <pfred1> I got a good buzz going
[21:30:21] <r00t4rd3d> its worked for 48 years
[21:30:56] <pfred1> the stain fumes help
[21:31:16] <r00t4rd3d> smoke a joint
[21:31:39] <Jymmm> stain fumes from urinating on yourself?
[21:31:52] <pfred1> nah my arms aren't fully cured yet
[21:32:08] <pfred1> they're kinda wafting a bit
[21:32:20] <Jymmm> I dont know what that means, but ok!
[21:32:22] <Jymmm> =)
[21:32:39] <pfred1> Jymmm http://www.instructables.com/file/FSKI8H9H2WET4QH/?size=ORIGINAL
[21:32:47] <pfred1> fresh stain
[21:33:24] <Jymmm> pfred1: Ah. single bolt holding it to the shelf?
[21:33:39] <pfred1> yeah a 1/2x13 carrige bolt
[21:33:59] <Jymmm> pfred1: But no large 2-3" diameter washer to offset the weight?
[21:34:17] <pfred1> no just the right size washer for that bolt
[21:34:27] <pfred1> it'd take about a ton of wweight
[21:34:45] <pfred1> the shelf bracket will give out long before it does
[21:34:46] <Jymmm> Sure, but will the wood is qhat I was questioning
[21:34:51] <Jymmm> what
[21:35:00] <pfred1> oh the 3/4 plywood?
[21:35:10] <Jymmm> or the oak
[21:35:18] <pfred1> yeah no
[21:35:50] <pfred1> it's pretty sturdy
[21:36:19] <Jymmm> cool
[21:37:28] <pfred1> I just extended them
[21:37:34] <pfred1> now you're closer
[21:37:59] <r00t4rd3d> http://www.ebay.com/itm/Computer-Industrial-Rack-Mountable-Waterproof-Keyboard-/370619414705?pt=LH_DefaultDomain_0&hash=item564aa378b1
[21:38:32] <pfred1> I have one of those roll up keyboards
[21:38:44] <pfred1> but it is horrible to type on
[21:38:51] <r00t4rd3d> shitty beyond shit
[21:39:04] <r00t4rd3d> you can get nice ones though
[21:39:09] <ReadError> mechanical or bust
[21:39:17] <pfred1> ah I got it for a buck at a yard sale
[21:39:23] <ReadError> sounds like a tommy gun at work when i start peckin hard ;)
[21:39:35] <r00t4rd3d> http://www.ebay.com/itm/Silicone-Industrial-Waterproof-USB-Mini-Keyboard-Compatible-Windows-7-KB-88-/400298262005?pt=PCA_Mice_Trackballs&hash=item5d33a2bdf5
[21:39:41] <r00t4rd3d> industrial lol
[21:40:01] <jdhNC> I have a $5 rubber one from monoprice.com
[21:40:16] <pfred1> yeah mine was probably about $5 new
[21:40:20] <r00t4rd3d> i bet its a dream to type on also
[21:40:43] <pfred1> just throw a regular keyboard in a plastic bag
[21:40:52] <jdhNC> it's a dream to spill cutting fluid on
[21:41:02] <pfred1> I did that with a cordless drill working on my pool
[21:41:08] <jdhNC> sucks for everything else
[21:41:15] <pfred1> then I broke out my pneumatic tools
[21:41:25] <pfred1> used it underwater
[21:41:32] <pfred1> was cool
[21:42:43] <pfred1> man that skimmer was a pain in the ass
[21:42:56] <pfred1> I had to make studs for it to get it to seat
[21:43:20] <ReadError> i got a 20$ wireless MS kb/mouse combo at microcenter on sale
[21:43:33] <ReadError> for the basement
[21:43:38] <pfred1> I have cordless upstairs but the range sucks
[21:43:50] <pfred1> I kinda wanted to use it a bit like a remote
[21:43:56] <ReadError> ya well im sure it exceeds the range of your eyes ;)
[21:44:01] <Jymmm> ReadError: Your $129 to my $6 http://www.ebay.com/itm/Clear-Silicone-Cover-Skin-for-Apple-imac-G6-Wired-Keyboard-US-Version-Desktop-PC-/260880978223?pt=US_Keyboard_Protectors&hash=item3cbdb7d12f
[21:44:02] <pfred1> it doesn't remote much past 3 feet
[21:44:41] <ReadError> lol you got a bunk kb
[21:44:48] <ReadError> Jymmm, its all about finger pleasure
[21:44:49] <pfred1> logitech
[21:44:53] <ReadError> i enjoy the finer things in life
[21:44:58] <ReadError> nice keyboards and good beer
[21:45:17] <Jymmm> ReadError: EXCELLENT kayboard, replaces my IBM Keyboard
[21:45:38] <pfred1> like I said throw it in a plastic bag
[21:46:02] <Jymmm> The silicon cover is great
[21:46:05] <ReadError> i hate mac keyboards
[21:46:13] <pfred1> I hate macs
[21:46:13] <ReadError> not tactile at all
[21:46:22] <Jymmm> ReadError: Have you tried it?
[21:46:29] <ReadError> i have an apple kb
[21:46:36] <ReadError> i only use it to fix synergy
[21:46:39] <ReadError> and thats all ;)
[21:46:40] <pfred1> I have a couple pear trees
[21:47:00] <pfred1> least I did the last time Iwas in my back yard
[21:47:16] <Jymmm> Was an easy transition from my IBM clicky to the Apple wired
[21:47:17] <ReadError> i run hackintosh pfred1
[21:47:19] <ReadError> works great ;)
[21:47:19] <pfred1> I gotta go check on them again someday
[21:47:20] <r00t4rd3d> check out this panic button
[21:47:20] <r00t4rd3d> http://www.ebay.com/itm/Vintage-sealed-PANIC-BUTTON-for-computer-keyboard-gag-gift-novelty-moc-new-/380445422964?pt=LH_DefaultDomain_0&hash=item5894507574
[21:47:57] <pfred1> I want to get an easy button for my CNC
[21:48:29] <ReadError> my mechanical keyboards support aftermarket keys ;)
[21:49:16] <pfred1> I think an easy estop would be cool
[21:49:30] <Jymmm> short out the circuit breaker
[21:50:17] <r00t4rd3d> http://www.ebay.com/itm/Batteries-Included-STAPLES-TALKING-EASY-BUTTON-International-Ship-/140758749606?pt=LH_DefaultDomain_0&hash=item20c5e011a6
[21:51:15] <r00t4rd3d> im sure you could rewire that into a estop
[21:51:23] <pfred1> I'm sure I'll pick one up in my travels
[21:51:39] <Jymmm> In Spanish http://www.ebay.com/itm/STAPLES-en-espanol-boton-facil-SPANISH-EASY-BUTTON-Asi-de-facil-w-Batteries-/140693570299?pt=LH_DefaultDomain_0&hash=item20c1fd82fb
[21:51:47] <pfred1> I find everything else
[21:52:07] <r00t4rd3d> http://www.ebay.com/itm/Swearing-BS-Button-much-funnier-than-that-easy-button-/310326039135?pt=LH_DefaultDomain_0&hash=item4840df925f
[21:53:10] <r00t4rd3d> ebay needs better sharable links
[21:54:07] <r00t4rd3d> by better i mean shorter
[21:55:26] <Jymmm> r00t4rd3d: http://search.ebay.com/310326039135
[21:55:42] <roycroft> hey folks
[21:55:53] <pfred1> hay horses
[21:55:54] <roycroft> so i have multiple bit of better news today
[21:56:10] <roycroft> i got another touch screen display for $12, and it works great
[21:56:17] <pfred1> sweet
[21:56:26] <roycroft> i got the touch screen calibration utility compiled finally, and it works great
[21:56:26] <pfred1> I been paying $5 for non touch screens
[21:56:44] <roycroft> and i disabled hyperthreading on the cnc computer, and my jitter is way down now
[21:56:57] <roycroft> i still don't understand the difference between base jitter and servo jitter, though
[21:57:03] <pfred1> no one likes a hyper computer
[21:58:00] <Connor> roycroft: How big touchscreen ?
[21:58:07] <roycroft> today's is 15"
[21:58:13] <roycroft> i have a 17" one as well
[21:58:19] <Connor> for $12.00 ??
[21:58:24] <roycroft> yes!
[21:58:28] <roycroft> it's a dell
[21:58:33] <roycroft> with an elo touch screen
[21:58:38] <roycroft> usb interface
[21:58:46] <Connor> I want one for my 22 inch.
[21:58:50] <roycroft> it was on sale for half off at the goodwill
[21:58:57] <roycroft> 15" is plenty big for linuxcnc
[21:59:13] <Connor> Oh, you got a whole monitor.
[21:59:21] <Connor> I'm using a 22" already.
[21:59:24] <roycroft> even the fattest of fingers can operate a 15" touchscreen monitor
[21:59:27] <roycroft> yes, i got the whole thing
[21:59:30] <roycroft> plug and play
[21:59:39] <jdhNC> I have a 19" on the mill. I would prefer 22
[21:59:44] <roycroft> why?
[21:59:54] <roycroft> 15" looks huge running the touchy interface
[22:00:02] <jdhNC> I like to see more than just the UI
[22:00:06] <roycroft> at some point i'll want to customise that interface, though
[22:00:39] <Connor> geez. 112.00 for a overlay kit..
[22:01:52] <roycroft> i plan on having multiple cnc machines
[22:02:14] <roycroft> so collecting touch screen displays when they're a good deal is a good thing to do
[22:04:47] <pfred1> to a point
[22:05:09] <pfred1> at some point I stop buying stuff
[22:05:30] <pfred1> like don't ask me how many Weller ray gun soldering guns I own
[22:05:50] <pfred1> I mean I have them MIB
[22:05:53] <Connor> pfred1: How many do you own ?
[22:06:09] <pfred1> pfft a half a dozen a dozen I've really no idea at this point
[22:06:38] <pfred1> now even MIB for $3 I won't buy anymore
[22:06:38] <jdhNC> what do you do with them?
[22:06:49] <pfred1> solder heavy stuff
[22:06:56] <pfred1> like chassis
[22:07:13] <pfred1> they're no good for micro electronics but they have their place
[22:07:56] <pfred1> they're the soldering equipment a lot of people buy that don't have the first clue how to solder
[22:08:09] <pfred1> then they decide they can't solder and get rid of them
[22:08:16] <jdhNC> I almost bought one once.
[22:08:28] <pfred1> the cool thing about them is they heat up almost instantly
[22:08:36] <pfred1> less then 3 seconds
[22:09:03] <pfred1> so for doing heavy wiring and stuff they're pretty good
[22:10:13] <pfred1> hammers is another thing I have to slow down with
[22:10:23] <pfred1> and pliers
[22:11:12] <pfred1> I was at an estate sale and I picked up this sweet pair of Utica tools linesmans for 50 cents
[22:11:19] <pfred1> I mean how could i pass?
[22:12:41] <pfred1> never mind I have 10 other pairs of linesmans pliers
[22:15:23] <roycroft> i have an old soldering gun
[22:15:28] <roycroft> it is great!
[22:15:34] <roycroft> i use it to demagnetise tools
[22:15:39] <pfred1> keep the tip clean and tinned
[22:15:48] <pfred1> I have a degausser
[22:15:50] <roycroft> i've never soldered with it
[22:16:01] <pfred1> it is pretty handy
[22:16:13] <pfred1> nothing worse than a magnetized drill bit
[22:16:39] <roycroft> my soldering gun was $2 at a garage sale
[22:16:46] <roycroft> hard to find a proper degausser for that price
[22:16:48] <pfred1> yup that is the going rate
[22:17:04] <pfred1> oh I forget what I paid for my degausser
[22:17:16] <roycroft> probably more than $2
[22:17:21] <pfred1> I think you could chop the secondary off a transformer and have a gegausser
[22:17:28] <pfred1> degausser even
[22:18:07] <pfred1> mine is a plate type not a ring
[22:18:24] <pfred1> so you pass a part over it in an X pattern
[22:18:28] <roycroft> the kind that was made for bulk erasing magnetic tapes
[22:18:47] <pfred1> oh this thing would bulk erase tapes I bet
[22:19:00] <pfred1> it weighs about 30 pounds
[22:19:03] <tronwizard> pfred: leave the secondary on, and add a load, better magnetic field
[22:19:22] <roycroft> it would erase them from a furlong away!
[22:19:27] <pfred1> thing is you want a crappy pagnetic field
[22:19:33] <pfred1> magnetic field even
[22:22:21] <pfred1> I'll have to take mine apart someday and see what makes it tick or hum
[22:26:09] <uw> hi stepper motor question. Ive ran one of the example files fine, but when i ran it again one of the axis missed steps (quite a bit). I dont know why this is happening. Has anybody else seen this?
[22:26:27] <pfred1> heh
[22:27:10] <jdhNC> check step timings, acceleration, max velocity
[22:27:17] <pfred1> what drive and what speed are you running?
[22:31:33] <uw> running a opti driver (3 steppers) and speed is about .7in/s
[22:31:45] <uw> machine is a sherline mini mill
[22:32:05] <uw> the opti-driver says it supports up to 27khz
[22:32:15] <pfred1> not familiar with that driver but seems reasonable
[22:32:48] <pfred1> so 27 KHz step input?
[22:33:32] <uw> also, i cannot go lower than 1.0in^2/s for acceleration for some reaoson. if i lower it, as soon as i click away, it pops back to 1.0
[22:33:38] <pfred1> what is the lead pitch on a sherline?
[22:33:46] <pfred1> I'd imagine it is pretty tight
[22:34:05] <uw> 20 threads / inch
[22:34:10] <pfred1> hmm yes
[22:34:39] <uw> yes max step rate is less than the 27Khz spec of the driver
[22:35:01] <uw> is 20tpi pretty tight?
[22:35:07] <uw> sorry im pretty new to these systems
[22:35:28] <pfred1> that is the pitch of an imperial micrometer
[22:35:39] <pfred1> or are they 40?
[22:35:45] <cradek> for a small light machine you can probably accel at 10-25 ips2. your max speed will be very limited though.
[22:36:34] <uw> i think all sherline inch machines are 20TPI unless they've been changed
[22:36:37] <cradek> it's not surprising that stepconf has a minimum of 1 ips2 because that's really much slower than anybody ought to need
[22:36:54] <pfred1> is my math right .7 IPS @ 20 TPI = 840 RPM
[22:37:39] <cradek> yeah .3-.5 ips might be your max
[22:37:54] <cradek> I think they even use unipolar drivers
[22:38:09] <uw> pfred1, i believe that sounds correct.
[22:38:15] <pfred1> it is doable but you'd have to be up to snuff
[22:38:52] <uw> cradek, ok thats soo slow, but that might be just waht im dealing with
[22:38:57] <pfred1> like what volts are you running your driver at?
[22:39:00] <uw> i blieve my steppers are unipolar
[22:39:03] <uw> they are from 1994
[22:39:18] <uw> the driver runs at 36v
[22:39:32] <pfred1> to do 840 I'd think you'd have to yeah I was going to say at least 36
[22:39:57] <pfred1> are you microstepping?
[22:40:21] <pfred1> like what mode do you have your driver in?
[22:40:39] <pfred1> 1/2 1/4 1/8th?
[22:40:58] <uw> umm, honestly, i dont know. if i were to guess, i dont believe the opti-driver supports microstepping, only differnt currrent modes. (25% 50% 100%)
[22:41:07] <pfred1> hmm it has to
[22:41:42] <uw> ok to calibrate it...using stepper mill configureation tool...
[22:41:45] <pfred1> personally I've never gotten full step to ever run too well for me at speeds
[22:41:50] <uw> i have driver microstepping to 2.0
[22:41:59] <uw> this yields accurate table travel
[22:41:59] <pfred1> OK so half stepping
[22:42:13] <pfred1> half isn't bad
[22:42:25] <pfred1> but 1/4 may be better
[22:42:43] <pfred1> it is certainly worth trying out if it is available to you
[22:43:23] <pfred1> I know I would
[22:43:32] <uw> the opti driver is pretty old. i cant find any information on it.
[22:43:45] <uw> what would the benfits of 1/4 stepping be?
[22:43:47] <pfred1> is there a driver IC?
[22:43:56] <pfred1> it might run smoother less resonance
[22:44:20] <pfred1> resonance is often what knocks stepeprs out
[22:45:54] <pfred1> I'm waiting for the new toshiba IC to really enter the pipeline
[22:45:56] <uw> the driver ICs are covered with heat sincs
[22:46:08] <uw> i have a picture of the device that im uploading right now
[22:46:28] <uw> just so everyone can see this crazy thing which aparently doesnt exist on the internet
[22:46:50] <pfred1> right now thse are unobtanium http://simewang007.en.ec21.com/Toshiba_Thb6064ah_Engraver_Machine_Step--5804224_5887880.html
[22:47:02] <pfred1> but they're hotrods!
[22:48:06] <uw> oh ive heard of these
[22:48:19] <pfred1> uw I made my own drivers based on the earlier IC http://www.instructables.com/id/TB6560-Microstepping-Bipolar-Chopper-Stepper-Motor/
[22:48:55] <uw> theres a new project that someone made with these. wanted $50 for package that supported 3 motors. was on kickstarter i believe
[22:49:16] <pfred1> $50 3 axis is pretty good if it performs
[22:49:37] <uw> it seemed like a pretty good deal. My motors are pretty old though so i couldnt use it
[22:49:49] <pfred1> mine was $10 an axis but performance is a bit lackluster
[22:49:49] <uw> i just am using this free mill to learn the ins and outs
[22:50:06] <uw> have you ever heard of linstepper
[22:50:11] <pfred1> yes
[22:50:22] <pfred1> I've chatted with roman
[22:50:46] <uw> i was thinking about that one too, however the IC again isnt for unipolar motors
[22:50:59] <uw> professional schematic
[22:51:03] <pfred1> their driver isn't for past 1.5 amps
[22:51:07] <uw> just curious, what did you use to create it?
[22:51:23] <pfred1> my schematic?
[22:51:26] <pfred1> Eagle
[22:51:55] <pfred1> maybe someday DJ will teach me how to use PCB :)
[22:52:04] <djdelorie> it's easy!
[22:52:08] <pfred1> heh
[22:52:22] <djdelorie> as long as you want to do things pcb's way :-)
[22:52:22] <pfred1> easy for you
[22:52:35] <djdelorie> I've had practice
[22:52:42] <pfred1> that is what it takes
[22:52:48] <djdelorie> http://www.delorie.com/pcb/docs/gs/
[22:52:52] <uw> i use cadence at work and that was a royal pain to learn
[22:52:56] <pfred1> thing is I've had too much practice using eagle
[22:52:57] <uw> and im still not good at it
[22:53:23] <pfred1> I still suck making library parts though
[22:53:58] <uw> i hear you
[22:54:09] <pfred1> that to me is the true trst if PCB design soft is any good how good is the lib creation module
[22:54:11] <djdelorie> I have scripts to make them for me
[22:54:13] <uw> i just try to find similar parts online then modifiy them
[22:54:17] <djdelorie> google "djboxsym"
[22:54:34] <djdelorie> and "dilpads"
[22:55:02] <pfred1> I had to make the lib for my TB6560 with its stupid zip footprint
[22:55:28] <pfred1> which I had to modify because it was still too tight to route easily was easier to bend pins
[22:56:17] <pfred1> initially i made it so the part dropped right in
[22:56:25] <pfred1> I was very proud of that
[22:56:39] <pfred1> it didn't work well in practice though
[22:57:17] <pfred1> I'm going to firebomb whoever wrote nepomuk
[22:57:44] <pfred1> they should have named it runamok
[22:59:11] <pfred1> uw like a lot of things in life with CNC speed costs
[22:59:42] <uw> yea thats exactly what i wasnt hoping lol
[22:59:51] <pfred1> nope very true here
[23:00:06] <pfred1> and to go a little faster it can cost a lot more too
[23:00:18] <uw> also your inscrutable is pretty cool. nice job man. I wish i could get my shit together and do something for the comunity
[23:00:32] <uw> you were saying you werent happy with the performance
[23:00:35] <pfred1> ah you can buy chinese boards for cheaper
[23:00:37] <uw> what is lacking or whatever?
[23:00:49] <pfred1> it tops out at about 24 volts
[23:00:59] <pfred1> so you can only get so much watts tehre
[23:01:52] <pfred1> I need a current probe for my scope so I can really see what is going on
[23:02:21] <uw> oh i see
[23:02:46] <uw> the chip can handle more than that right?>
[23:02:54] <pfred1> yeah i may be able to get a litte more out of it but I don't know
[23:03:01] <pfred1> well that is debatable
[23:03:19] <pfred1> toshiba claims it can do more but when people push it that far it has a habit of blowing up
[23:03:51] <pfred1> I blew one up but I shorted it out
[23:04:10] <uw> hmm even majorly heat sinked?
[23:04:27] <pfred1> back emf seems to kill them
[23:04:57] <pfred1> your input volts may not be your max system volts at all times
[23:05:26] <pfred1> due to the nature of stepper motors
[23:05:55] <pfred1> them being big coils in close proximity to rotating magnetic fields etc.
[23:05:55] <uw> yea and i guess they arent protected or whatever
[23:06:19] <pfred1> they are but they aren't protected enough
[23:06:40] <pfred1> the chinese boards have protection diodes on them the IC is supposed to have them built in as well
[23:07:15] <pfred1> in any event I'm holding out a lot of hope for the improved IC
[23:07:34] <pfred1> it looks like it'll be close to a drop in for my board from what I've seen of it
[23:07:39] <uw> does the datasheet recommend external protection diodes or other spike protection?
[23:07:46] <pfred1> not really
[23:09:03] <uw>
[23:09:15] <uw> btw this is the board im using
[23:09:24] <uw> vaporware i swear
[23:10:10] <pfred1> unipolar drive?
[23:10:36] <uw> yes i believe the motors are unipolar
[23:10:44] <pfred1> how many wires?
[23:10:56] <pfred1> come out of one motor
[23:11:53] <uw> 4 wires
[23:11:58] <pfred1> bipolar
[23:12:03] <uw> 2A 6V 5ohm they say
[23:12:33] <pfred1> unipolar motors have 6 wires universal motors have 8 4 wire is bipolar
[23:13:10] <uw> oh ok. i remember reading all about them and how much one sucks compared to the other, but cant remember anything else
[23:13:17] <pfred1> ah
[23:13:19] <uw> or even which one was better
[23:13:20] <uw> lol
[23:13:33] <pfred1> they can all be good or suck
[23:14:19] <pfred1> 2 amp motors should be good for your sherline
[23:14:43] <pfred1> this driver does look a little cheesy though I can't quite place the driver ICs
[23:15:07] <pfred1> probably some old allegro stuff
[23:15:16] <uw> http://uwonfire/img/P1030190.JPG
[23:15:31] <uw> theres another picture. they they put stickers over the amtel jobs
[23:15:52] <uw> and those heatsincs (bent pieces of metal) are soldered in place
[23:15:52] <pfred1> not found
[23:16:14] <uw>
[23:16:17] <pfred1> I had a job where we sanded the numbers off ICs
[23:16:38] <uw> LOL i totally belive it
[23:16:51] <pfred1> oh we did
[23:17:06] <pfred1> sat there and sanded numbers off day in day out
[23:17:49] <pfred1> they were common 4000 series CMOS ICs too
[23:17:53] <uw> wow knowledge is power hate to say it. keeping those devices a secret probably kept everyone getting paid though right?
[23:18:24] <pfred1> well I asked Ed about it and he was like I don't want the chip swappers messing with my boards
[23:19:31] <uw> makes sense
[23:19:32] <pfred1> you know pwoplw who don't have a whole lot of knowledge but they figure if the ycan swap the ICs maybe they'll get something working
[23:19:50] <pfred1> he'd rather they just returned them
[23:20:07] <uw> true, especially when they are programmable
[23:20:09] <pfred1> and he was probably right
[23:20:17] <uw> heres a related story...
[23:20:25] <pfred1> the hardest thing to troubleshoot is the human factor
[23:20:57] <uw> we opened up a vendor's box once trying to fix a problem. then we kept blaming them for using a certain IC that was misbehaving
[23:21:14] <uw> turns out it was something else and we wasted a bunch of the vendor's time lol
[23:21:36] <pfred1> assumptions can chew up a lot of resources
[23:22:04] <pfred1> I always try to keep an open mind
[23:23:07] <pfred1> I wonder if your drivers aren't 297/298 pairs?
[23:23:29] <pfred1> paired packages and the right vintage too
[23:23:47] <pfred1> look that up and compare the pin counts
[23:24:06] <pfred1> if they are then you're not going to get a whole lot of performance out of them
[23:24:12] <uw> indeed. if there ever was such an example for "wild goose chase"... I'm my defense (blame pushing) I was being pressured by the uppers to do such a thing.
[23:24:18] <uw> 297/298 pair?
[23:24:28] <pfred1> yes they are classic stepper drives
[23:24:47] <pfred1> just google 297 298 a million pages should return
[23:25:13] <pfred1> http://anivo.com/reed/L297_L298/L297_L298.htm
[23:25:33] <pfred1> I bet that is what you have
[23:25:49] <pfred1> old skule
[23:25:54] <uw> (looking)
[23:26:43] <pfred1> I never actually messed with them have read about them some though
[23:27:10] <pfred1> one id the sequencer the other is the driver IC
[23:27:36] <pfred1> though why they heat sinked the sequencer is anyone's guess
[23:28:27] <uw> hmm, it looks like the middle of the IC is pinless for the heatsink
[23:28:39] <uw> i dont see a L297 298 that has that package
[23:28:42] <uw> but maybe they do?
[23:28:52] <pfred1> yeah that threw me too
[23:29:03] <pfred1> the one IC looks like it has heat fangs
[23:29:48] <pfred1> but 297 sequencers only do full and half stepping if memory serves me
[23:32:37] <pfred1> I think they use bipolar transistor technology
[23:32:54] <uw> yea just checked again, they are soldered down
[23:33:23] <pfred1> well with your driver I think you may have to scale back your speed expectations some
[23:33:55] <uw> sadly...might be the thing i need to do.
[23:34:15] <pfred1> hey its a sherline how much travel do you have anyways?
[23:34:33] <pfred1> not like you're rapiding across a 4x8 sheet you know?
[23:34:39] <uw> 8"x 3" y
[23:35:21] <pfred1> my drives with a 10 TPI thread I'm lucky to get 1.3 IPM
[23:35:23] <uw> true, i just want to learn the program with this. i have anotehr bigger mill i am looking to convert to cnc that i have servos for
[23:35:31] <pfred1> IPS I mean
[23:35:49] <pfred1> yeah servos higher performance
[23:35:49] <uw> what kind of machine do you have?
[23:36:13] <pfred1> none yet just a Z axis I've been busy with other projects I mean to get back to it eventually
[23:36:47] <pfred1> it is a little further along than this http://www.youtube.com/watch?v=fHPKaHLzXes
[23:36:57] <uw> i hear you with the projects LOL
[23:37:39] <uw> its funny, all i want to do is make stuff to play with. turns out i spend all my time playing with the tool to make the stuff i actually want to play with
[23:38:00] <pfred1> I spend a lot of time improving my workshop
[23:38:17] <pfred1> I just finished this http://www.instructables.com/id/Under-Shelf-Dual-Monitor-Support-Arms/
[23:38:30] <pfred1> that took me a couple of days to do
[23:38:45] <uw> nice in that video are you using the driver you made?
[23:38:51] <pfred1> yes
[23:38:59] <uw> looks pretty good
[23:39:02] <pfred1> thanks
[23:39:11] <pfred1> my own PSU and break out board too
[23:39:32] <pfred1> I made everything but the PC
[23:39:44] <pfred1> well and the software
[23:40:20] <pfred1> I did build the software though
[23:40:42] <pfred1> I'm none too keen on Ubuntu
[23:40:43] <uw> nice. yea i went with hanging monitors too soo much better
[23:41:07] <pfred1> it is more flexible
[23:41:27] <pfred1> I had a huge CRT in this spot
[23:41:44] <pfred1> I'm hoping to reclaim some of the space
[23:42:14] <uw> http://www.kickstarter.com/projects/ajquick/cnc-building-blocks?ref=live
[23:42:38] <uw> this is that stepper driver iwas talking about
[23:42:43] <pfred1> pretty boring design
[23:42:56] <uw> accept its not tohshiba
[23:43:05] <uw> SLA7078
[23:43:17] <uw> oh yea the project itself sucks
[23:43:28] <pfred1> I've made a driver with an SLA7026
[23:43:29] <uw> but i see a bunch of stuff using that SLA7078
[23:43:45] <pfred1> which is basically the same without a built in sequencer
[23:43:45] <uw> for some reason i thought it was toshiba for some reason
[23:43:52] <pfred1> allegro
[23:44:16] <uw> they seem like they have good specs
[23:44:32] <pfred1> they're unipolar
[23:45:25] <uw> the driver i was going to make was based off that, but then i realized the whole unipolar/bipolar problem and ended up where i am now, using what came with it
[23:45:31] <uw> which is nice that it works anyway
[23:45:39] <pfred1> this is one of my SLA boards http://img697.imageshack.us/img697/7711/pict0789w.jpg
[23:46:01] <pfred1> I like how they do their current limiting
[23:46:13] <pfred1> just adjust that pot
[23:46:53] <pfred1> my schematic http://img695.imageshack.us/img695/5841/tb6560ahqa.png
[23:47:01] <pfred1> ack no not that
[23:47:32] <Jymmm> Wow, that's bad
[23:47:53] <uw> lol
[23:47:57] <pfred1> yeah where's your better one?
[23:48:41] <Jymmm> anone that doesnt use bronze bushings, or crappy mold injection design and materials
[23:49:54] <uw> hey if it works, i guess just use it
[23:50:03] <pfred1> this is the schematic for my SLA7026 http://img692.imageshack.us/img692/646/hsoptos.png
[23:50:06] <Jymmm> I heard him thunk the plastic; brittle as shit
[23:50:28] <Jymmm> should be glass impregnated glass at the very least
[23:51:15] <uw> howd that perform?
[23:51:20] <Jymmm> err glass impregnante nylon
[23:51:42] <pfred1> well I'm only running it at the same volts as my TB but not bad
[23:51:44] <Jymmm> It make the parts VERY STIFF and solid.
[23:52:12] <Jymmm> little to no thermal expansion
[23:52:13] <pfred1> it can take a lot higher voltage but I don't have a PSU for it
[23:52:39] <pfred1> well the on board regulator would limit it to 35V
[23:52:57] <pfred1> but the driver IC itself is good to 40V?
[23:54:40] <pfred1> the newer ICs are very easy to work with because they have built in sequencers