#linuxcnc | Logs for 2014-06-28

[01:58:10] <Deejay> moin
[06:56:29] <ssi> being awake in the morning is weird
[07:28:21] <syyl_ws> "in the morning"
[07:28:31] <syyl_ws> like 10 in the morning?
[07:28:35] <syyl_ws> or 4 in the morning?
[09:01:44] <jthornton> 0.1 GB to last the rest of the month... I ain't gonna make it. I should have never updated my Garmin Maps
[09:02:51] <Loetmichel> jthornton: so order a temporary upgrade to your data transfer?
[09:05:42] <XXCoder1> hey
[09:06:01] <XXCoder1> limited bandwidth isp eh
[09:26:19] <JT-Shop> yea satellite 10GB a month
[09:29:56] <Loetmichel> i hope my company gets the ftth soon
[09:30:19] <Loetmichel> we have 2Mbit Sdsl at the moment... for ~10 people ;)
[09:31:02] <Loetmichel> but since last wek when the hit the main gas line with their "dirt rocket" you see nothing of the fiber workers.
[09:31:27] <Loetmichel> ... only about 50 meter left until we can get it... and now they are stalling:-(
[09:32:18] <JT-Shop> I have fiber about 1.6 miles away that is hooked to nothing
[09:33:30] <XXCoder1> good ol' SMBC http://www.smbc-comics.com/index.php?#comic
[09:33:45] <XXCoder1> he found a way for most people on world to feel dirty
[09:36:58] <CaptHindsight> http://www.ebay.com/itm/310702269807 they show up without any docs so you have to reverse how they designed it and what the jumpers are for, the instructions are in Chinglish, and wrong
[09:38:07] <CaptHindsight> http://www.automationtechnologiesinc.com/products-page/breakout-boards/kl-db25-breakout-board same for these
[09:39:04] <CaptHindsight> http://www.ebay.com/itm/111149514180 and these
[09:40:52] <CaptHindsight> the board at automation technology assumes you don't want to isolate one side of the optos from the other since the default jumper ties the 5V to both side of the optos :)
[10:51:34] <archivist> CaptHindsight, one of the silly things is series R on the breakout and inside the longshine driver so the optos dont get driven properly
[10:52:06] <CaptHindsight> http://www.ebay.com/itm/111149514180 5 Axis LPT breakout board + cable $15, the last LPT cable cost me $10
[10:52:46] <CaptHindsight> archivist: so one series resister inside the longshine plus another in series on the breakout?
[10:52:52] <archivist> yes
[10:53:34] <CaptHindsight> I wish they would at least post the value of the resistors
[10:54:04] <archivist> scope the signal at the opto out inside the longshine when the stepper fails to do the right thing, not just timing
[10:54:16] <CaptHindsight> or even a schematic, who's going to bother copying it?
[10:54:59] <archivist> instructions for the users are terrible, no wonder so many have trouble
[10:55:34] <CaptHindsight> I usually skip the instructions look at the traces and measure the resistors
[10:55:46] <CaptHindsight> yeah, they try to dumb it down
[10:56:18] <CaptHindsight> http://www.automationtechnologiesinc.com/wp-content/plugins/download-monitor/download.php?id=240 like this :)
[10:57:02] <CaptHindsight> the "Not Used" are the jumpers to connect power and ground from one side of the optos to the other
[11:00:44] <archivist> today I had a play with a Beck interferometer like top image http://web.physics.ucsb.edu/~lecturedemonstrations/Composer/Pages/84.30.html but used a cheapo laser level to see if it would work
[11:01:07] <Jymmm> jthornton: Can't you get a cell data only service?
[11:01:29] <Jymmm> jthornton: Most are $40/mo
[11:01:37] <archivist> and yes I do see patterns as described there
[11:01:49] <CaptHindsight> http://d1j1kxp9fqehmk.cloudfront.net/catalog/product/cache/1/image/500x500/9df78eab33525d08d6e5fb8d27136e95/s/t/st330.png fuzzy schematic of the http://www.sainsmart.com/cnc-router-single-1-axis-tb6560-3-5a-stepper-stepping-motor-driver-board.html#
[11:02:43] <Jymmm> If you were to describe "monochrome green" to someone that has never seen a monochrome monitor before, what color would it be?
[11:02:54] <CaptHindsight> archivist: I don't see why the laser level won't work
[11:03:03] <archivist> it does work :)
[11:03:11] <archivist> green
[11:03:30] <CaptHindsight> good for night measurements
[11:03:52] <Jymmm> archivist: Try again =)
[11:04:30] <archivist> Jymmm, I was a TV engineer and also made colour printers, it is still green
[11:04:36] <Jymmm> neon green? day-glo green?
[11:04:49] <archivist> no plain green
[11:05:18] <archivist> it is in the middle of all the silly named greens
[11:05:19] <Jymmm> No, the hue of "green" (as in paint for example) wouldn't match.
[11:06:05] <archivist> if you want to be specific there a a frequency of the green/ CIE value
[11:06:37] <Jymmm> I'm trying to match "monochrome green" to paint/material availability
[11:07:00] <Jymmm> archivist: If that has a PANTONE number, that would be great.
[11:07:00] <CaptHindsight> at some point you have to say God green vs facts, logic and science
[11:07:07] <archivist> you will not find an exact match,
[11:07:36] <archivist> pantones are subtractive and a monitor is additive
[11:08:14] <CaptHindsight> people still ask me for resins in RGB so that they can color match :)
[11:08:17] <Jymmm> Well, this isn't MG (Monochrome green)... http://ecx.images-amazon.com/images/I/41DfbXPFVxL._SY300_.jpg
[11:08:43] <Jymmm> This is pretty close to MG... http://images.orgill.com/200x200/2809366.jpg
[11:09:07] <Jymmm> or maybe this... http://www.thediyworld.com/img/Fluorescent-Green-Spray-Paint.jpg
[11:09:15] <archivist> and for more difficulty your eyes can see more greens than you can make
[11:09:16] <Jymmm> somewhere inbetween those teo
[11:09:55] <Jymmm> Just close to this would be good... http://www.technologyuk.net/computing/computer_systems/images/display_adapter_09.gif
[11:09:58] <archivist> go look at a CIE butterfly colour chart
[11:10:52] <archivist> one cannot match from a monitor easily as all monitors are not equal in their greens either
[11:11:20] <Jymmm> It desnt' have to be EXACT, just in the same ballpark
[11:11:26] <archivist> eg LCD grren will not be the same as CRT or LED greens
[11:12:25] <archivist> rofl http://www.google.co.uk/images?hl=en-GB&q=pantone+crt+green&gbv=2&sa=X&oi=image_result_group&ei=CuWuU9elI8ii0QXUkYGwCw&ved=0CCAQsAQ
[11:13:48] <CaptHindsight> http://www.sainsmart.com/cnc-router-single-1-axis-tb6560-3-5a-stepper-stepping-motor-driver-board.html been trying to get rid of these since they day they showed up
[11:14:11] <Jymmm> Tis looks close... http://www.case-scenario.com/1783-thickbox_default/pantone-neon-green.jpg
[11:14:19] <CaptHindsight> they are the noisiest stepper drivers I've ever heard
[11:19:22] <archivist> looks like pantone has changed its numbers since 1963
[11:20:34] <Jymmm> And then some. Just a pantone # would help to tell a vendor what I'm looking for is all.
[11:24:39] <IchGuckLive> hi all
[11:25:26] <IchGuckLive> CaptHindsight: you may not know mine small stepepr mashine with all the buggy drivers at low speed Noicy steppers
[11:27:21] <IchGuckLive> CaptHindsight: https://www.youtube.com/watch?v=1L1VR8U74us
[11:27:30] <Loetmichel> *harhar* german political party "pirates" thanks all sponsors of the convention... -> http://narf-archive.com/pix/f2b4489b0056ee7ce4e5d3ddd334cc7678cc4c29.jpeg
[11:28:11] <IchGuckLive> michel did you got some rain today
[11:28:20] <Loetmichel> no
[11:28:23] <Jymmm> Pirates have corporate spnsors?
[11:28:35] <Loetmichel> but the evening yesterday was quite wet
[11:28:45] <Loetmichel> Jymmm: look at the logos again ;-)
[11:28:48] <IchGuckLive> as here no rain beside a full blue radarmap it is so boaring
[11:29:11] <Jymmm> do ninjas have corp sponsors too?
[11:29:25] <CaptHindsight> IchGuckLive: I'm getting rid of them on a gantry with 0.1mm/step that just moves parts around
[11:29:40] <Jymmm> Loetmichel: Ok, japan/china?
[11:29:48] <CaptHindsight> IchGuckLive: do your motors randomly HISSSS when they stop?
[11:30:01] <Loetmichel> Jymmm: the companys are all fictional
[11:30:05] <Loetmichel> movies or games
[11:30:21] <IchGuckLive> CaptHindsight: no its all clear at speeds above 500mm
[11:30:37] <Jymmm> Loetmichel: ah
[11:30:43] <Loetmichel> CaptHindsight: that is normal for steppers which drivers go into "reduced current mode"
[11:31:14] <Jymmm> CaptHindsight: See if your drivers have an idle noise reduction feature.
[11:31:33] <CaptHindsight> Loetmichel: maybe with the tb6550, everything is dead silent with better drives
[11:31:48] <CaptHindsight> Jymmm: http://www.sainsmart.com/cnc-router-single-1-axis-tb6560-3-5a-stepper-stepping-motor-driver-board.html
[11:31:55] <Loetmichel> CaptHindsight: with all older drivers
[11:32:09] <Loetmichel> l297/l298 do it also
[11:33:24] <IchGuckLive> on mine its the Trapezional spindel moving in bad bronz
[11:33:35] <Jymmm> CaptHindsight: That doens't even have mid band compensation
[11:33:56] <CaptHindsight> I guess if I bothered to design my own TB6550 board it would probably be silent
[11:34:37] <CaptHindsight> Jymmm: https://www.toshiba.com/taec/components2/Datasheet_Sync/201103/DST_TB6560-TDE_EN_27885.pdf here's the data sheet from Toshiba, it's was made for toys and appliances
[11:34:44] <Loetmichel> CaptHindsight: amazing. so you can outwit physics?
[11:34:57] <Loetmichel> or just dont bother to implement current reduction when idle?
[11:35:25] <kfoltman> CaptHindsight: man toys?
[11:35:35] <CaptHindsight> Loetmichel: nope, just the other tb6550 board designers
[11:35:59] <IchGuckLive> CaptHindsight: the tb6560 with 150Pf on the clock are just fine
[11:36:17] <Jymmm> CaptHindsight: Well, then it's gonna hiss, as well as stall if you push it to it's limits
[11:36:26] <kfoltman> IchGuckLive: where do you get your trapezoidal spindles?
[11:36:27] <IchGuckLive> also a change in Diode FR304 to UFD5403
[11:36:45] <IchGuckLive> kfoltman: im in germay
[11:37:26] <kfoltman> IchGuckLive: I've compared prices of ballscrews bought from China and trapezoidal screws bought from UK, and went for ballscrews because they weren't much more expensive, and were simpler to use
[11:37:40] <kfoltman> the trapezoidals are probably more accurate though ;)
[11:37:59] <kfoltman> (yes I know that they shouldn't be, but I'm talking about low-end made-in-China)
[11:38:00] <CaptHindsight> IchGuckLive: I think you're just used to noise, the drives are 10 feet from the motors
[11:38:09] <IchGuckLive> no you got backlash on them so use Ballscrew if you can get them
[11:38:10] <CaptHindsight> ~3meters
[11:38:34] <kfoltman> IchGuckLive: okay, to be fair, those Chinese ballscrews are good enough to have no backlash :)
[11:38:54] <IchGuckLive> kfoltman: all good till 1,5m then you go rack pinion
[11:39:00] <kfoltman> IchGuckLive: :)
[11:39:23] <kfoltman> IchGuckLive: are there any problems with rack and pinion on smaller machines? (0,5m or so)
[11:39:25] <IchGuckLive> kfoltman: even they got some its better then the TR
[11:39:46] <IchGuckLive> kfoltman: not cost eficcent
[11:40:05] <kfoltman> IchGuckLive: if the backlash of the ballscrew is much less than backlash of the rest of the mechanism, then I don't have to worry ;)
[11:40:18] <IchGuckLive> Right
[11:40:24] <CaptHindsight> these don't hisss every stop, just randomly
[11:40:47] <IchGuckLive> what does hiss mean
[11:40:51] <kfoltman> sssssssssssssss
[11:41:00] <CaptHindsight> the sound of SSSSSSSSSSSSSSSSSSSSSSSSSSSS
[11:41:01] <kfoltman> IchGuckLive: a noise that snake makes
[11:41:03] <IchGuckLive> stall
[11:41:08] <Loetmichel> no
[11:41:13] <Loetmichel> IchGuckLive: zischen
[11:41:19] <kfoltman> IchGuckLive: high frequency noise
[11:41:29] <Loetmichel> weisses rauschen
[11:41:36] <IchGuckLive> i never got that sound and i got plenty of drives and mashine setup
[11:41:43] <CaptHindsight> when the motors are stopped, not stalled, they just randomly "SSSSSSSSSSSSSS"
[11:42:00] <kfoltman> CaptHindsight: I get that a lot with green Chinese driver boards
[11:42:04] <IchGuckLive> or i dedent regionise it at all
[11:42:10] <kfoltman> not loud enough to be annoying though
[11:42:20] <Loetmichel> IchGuckLive: you are an older guy
[11:42:21] <CaptHindsight> if you bump the output shaft it might become quiet
[11:42:32] <Loetmichel> maybe your hearing doesent go that far up.
[11:42:40] <IchGuckLive> i only got one red tb6560 and then used the Blue ones
[11:42:55] <IchGuckLive> right michel its the age
[11:43:06] <kfoltman> IchGuckLive: I think it depends on the motor current and the excitation setting I think
[11:43:10] <IchGuckLive> 2month to go
[11:43:25] <CaptHindsight> they step/move fine, they just make too much noise when stopped
[11:43:30] <kfoltman> but, yes, many people can't hear high frequencies when they get old
[11:43:37] <Loetmichel> kfoltman: ut usually occures in low current mode
[11:44:06] <Loetmichel> i would rather its the PWM switching to "random mode"
[11:44:20] <kfoltman> there is PWM random mode? :D
[11:44:29] <Loetmichel> i.e: firing not ar regular intervals but leave out some pulses
[11:44:40] <kfoltman> ahh
[11:44:40] <IchGuckLive> kfoltman: on chiise drivers shure
[11:44:40] <Loetmichel> to get the current low enough
[11:44:46] <kfoltman> lol
[11:45:01] <IchGuckLive> chinese
[11:45:10] <CaptHindsight> they get noisier if you lower the max current output
[11:45:19] <IchGuckLive> they ofen use rekonfigured parts
[11:45:26] <kfoltman> Loetmichel: like, current limiting/chopping?
[11:45:29] <Loetmichel> its a well known effect on smps. they have a minimum PWM widht
[11:45:39] <IchGuckLive> ssi: online ?
[11:45:59] <CaptHindsight> they also get noiser if you lower the decay
[11:46:14] <Loetmichel> if you draw less current than this minimum widh will provide the smps controller switch to "aperture mode"
[11:46:29] <Loetmichel> where they leave ot one or more pulses
[11:47:40] <IchGuckLive> hi dnaleromj
[11:47:46] <Loetmichel> which will appear as "white noise" because it isnt any defined frequency any more, but a mix of a dozen frequencies
[11:49:00] <SpeedEvil> White noise is an infinite number of frequencies.
[11:49:10] <CaptHindsight> but these aren't consistent every stop, random Hisss noise
[11:49:44] <Loetmichel> SpeedEvil: man "appear as"
[11:54:31] <CaptHindsight> http://www.youtube.com/watch?v=XJKodmZihbk video on how to modify the tb6560 boards to behave better
[11:54:37] <CaptHindsight> still junk though
[11:54:57] <IchGuckLive> 2USD L297/298
[11:55:05] <IchGuckLive> will do the same job
[11:56:01] <CaptHindsight> I haven't looked that closely at the small stepper driver IC's since I usually use servos or >5A stepper motors
[11:56:34] <CaptHindsight> I see the L297/298 on all the toy printer boards
[11:58:27] <Loetmichel> i dont
[11:59:07] <Loetmichel> on the 3dprinters are usually A4988
[12:08:11] <IchGuckLive> iv seen alot of 620x chips in use
[12:49:54] <CaptHindsight> heh http://www.ebay.com/itm/111149514180 arrived to day marked "NEEWER" breakout board
[12:51:03] <CaptHindsight> with mystery switch marked "SW"
[12:55:57] <SpeedEvil> Press it, and it makes the board explode
[13:02:03] <zeeshan|2> http://www.kijiji.ca/v-hand-tool/oakville-halton-region/machinists-tools-usa-canada/1000732416
[13:02:07] <zeeshan|2> is this lot worth 70$? :/
[13:02:10] <zeeshan|2> can't figure it out
[13:02:13] <zeeshan|2> i see like 2 carbide end mills
[13:02:21] <zeeshan|2> and a whole shit load of tapping stuff
[13:03:27] <IchGuckLive> im off BYE
[13:05:01] <CaptHindsight> ah the mystery SW switch is for USB 5v+ power vs external 5v+ via screw terminal connector nearest the db25
[13:21:15] <kfoltman> Hot 5 axis board? As in, they underspecced it and it suffers from thermal runaway?
[13:21:44] <kfoltman> Then explodes and flies off spinning across the room?
[13:21:47] <kfoltman> hence, 5 axis
[13:23:40] <CaptHindsight> kfoltman: it's just a breakout board for LPT
[13:25:00] <kfoltman> CaptHindsight: never underestimate their ability to screw up a design ;)
[13:25:19] <CaptHindsight> or write up a simple explanation
[13:26:25] <kfoltman> many times I think "I'll just order a cheap low-end $THING, how could they possibly screw that up?" (be it music gear or a devboard) and then the reality proves me that yes, they can, in many ways :D
[13:26:46] <CaptHindsight> I've been buying them since they are under $20 and come with cables, so the boards are <$10
[13:26:57] <kfoltman> I once bought a really cheap resistor pack (one of those multi-packs where you get 50 pcs of many different values)
[13:27:18] <kfoltman> then had to spend an evening relabelling the tapes, because the original labeling was totally unreadable :)
[13:27:29] <CaptHindsight> what did you actually get?
[13:27:35] <kfoltman> and also, the distribution of values was... less than optimal :)
[13:28:24] <kfoltman> as in, not E24 or something evenly distributed in log-scale
[13:28:27] <CaptHindsight> 20 were under 1k and the rest >100K
[13:28:37] <kfoltman> not THAT bad :)
[13:28:52] <kfoltman> but you get the idea
[13:29:38] <CaptHindsight> I used them for other interfacing to other mystery boards as buffers
[13:30:48] <kfoltman> makes sense :)
[13:31:15] <kfoltman> except, if shit hits the fan, you can't really tell which of the boards was to blame
[13:31:15] <CaptHindsight> sometimes I find a decent board after REing them and checking their part numbers since like you said "how could they screw that up"
[13:37:38] <kfoltman> yeah, if they just implemented a reference design, the only thing to worry about is component quality
[13:37:53] <CaptHindsight> http://www.automationtechnologiesinc.com/products-page/digital-stepper-motor-driver/digital-stepper-driver-kl-4042d-heat-sink-is-included is Leadshine http://www.leadshine.com/productdetail.aspx?type=products&category=stepper-products&producttype=stepper-drives&series=DM&model=DM442
[13:38:46] <CaptHindsight> Automation Technology KL-4042D is Leadshine DM442
[13:45:55] <zeeshan|2> CaptHindsight:
[13:46:50] <zeeshan|2> http://www.automationtechnologiesinc.com/products-page/kl-stepper-drivers/microstepping-driver-kl9082
[13:46:53] <zeeshan|2> which one is that? :P
[13:51:38] <CaptHindsight> http://www.leadshine.com/productdetail.aspx?type=products&category=stepper-products&producttype=stepper-drives&series=EM&model=EM806 unverified,
[13:52:22] <CaptHindsight> http://www.leadshine.com/UploadFile/Down/EM806d_V1.0.pdf
[13:55:12] <CaptHindsight> or maybe the http://www.leadshine.com/UploadFile/Down/M880Am.pdf since the keiling doesn't have serial inputs
[14:04:09] <somenewguy> is anyone in here using heekscad/cnc in linux?
[14:09:22] <somenewguy> can i get a mic check here?
[14:14:27] <tecan__> http://i.imgur.com/Ipc1oZa.jpg
[14:24:37] <Tecan> "/allchan say "hi" testing"
[14:25:05] <archivist> good way to get kicked off the network
[14:25:17] <Jymmm> what archivist said
[14:25:33] <Tecan> im only in 4 chans
[14:26:28] <Jymmm> Tecan: And it only takes one to get K-Lined
[14:26:51] <Tecan> issuing the command or spamming wrong place ?
[14:26:59] <Jymmm> Yes.
[14:27:22] <Tecan> so anyway todays the day i print something in plastic hopefully
[14:27:38] <Tecan> if i can get the heatbed workign without burning the transistor apart this time
[14:31:40] * Jymmm hands Tecan the 99ยข glue gun, same diff.
[14:34:39] * Jymmm has only seen ONE useful use of DIY grade 3d printer... prostethics
[14:50:17] <somenewguy> was that command aimed at me?
[14:51:40] <somenewguy> tecan?
[15:47:03] <ssi> :)
[15:55:56] <MrHindsight> Jymmm: http://www.3ders.org/articles/20140628-unyq-raises-taking-pre-orders-for-3d-printed-below-knee-fairings.html
[15:56:40] <MrHindsight> decorative prosthetic
[16:02:22] <MrHindsight> http://sculptify.com/pages/david at least it prints direct from pellets vs filament
[16:15:56] <Tecan> it maybe true you can do some pretty awesome work with hotglue it just wont make the pico turbine i want
[16:18:41] <MrHindsight> what people should take advantage of is 3D hot melt printing, but they don't
[16:20:59] <SpeedEvil> Tecan: http://3dtopo.com/lostPLA/
[16:21:08] <SpeedEvil> Tecan: nothing says you have to use aluminium :)
[16:22:45] <Deejay> gn8
[16:24:58] <syyl_> i think i can make that model in wood faster with normal woodshop tools and cast it then ;)
[16:25:23] <Tecan> awesome link i may have to try that
[16:26:04] <MrHindsight> for that shape
[16:26:26] <MrHindsight> but think of a more complex model that couldn't be made with cuttings tools
[16:26:43] <syyl_> everything can be made from multible parts
[16:28:05] <MrHindsight> but you mentioned speed
[16:28:32] <syyl_> i watched a model builder that did that kind of work for a living
[16:28:40] <syyl_> making models for aluminum casting
[16:28:58] <syyl_> table saw and diskgrinder where his main tools
[16:29:21] <syyl_> incredible fast building of complex contours
[16:30:08] <syyl_> ok, and i am no fan of 3d printing ;)
[16:30:19] <MrHindsight> I can SLA that part in 2 minutes
[16:30:48] <syyl_> crap ;)
[16:30:52] <syyl_> ok thats realy fast
[16:31:01] <MrHindsight> FDM would be like milling that with the feed rate set at 0.1mm/min
[16:31:22] <MrHindsight> FDM has its uses but not for that example
[16:32:12] <syyl_> its not my world for some reason ;)
[16:33:06] <MrHindsight> http://3dtopo.com/lostPLA/Thumbnails/19.jpg this part could be made in seconds, since every layer is identical
[16:33:29] <syyl_> in better quality?
[16:33:41] <syyl_> that surface finish is a bit horrible
[16:33:47] <MrHindsight> XY could be 500-100um
[16:34:14] <MrHindsight> http://3dtopo.com/lostPLA/Pages/20.html this part <5 minutes XYZ 100um
[16:34:52] <syyl_> .1mm surface roughness?
[16:35:00] <syyl_> or overal accuracity
[16:35:33] <MrHindsight> 100um smallest 3d feature
[16:36:42] <MrHindsight> you could have XY at 25um and do Z at 100um
[16:37:17] <MrHindsight> 100um layers take ~1 sec
[16:39:26] <MrHindsight> FDM is 100x slower for that part
[16:40:02] <syyl_> we call those homeshop fdms "plastic pooper"
[16:40:03] <syyl_> ;)
[16:49:59] <SpeedEvil> For making castings, where you're going to be finishing them anyway - lost PLA seems a good match
[16:56:17] <ssi> yeah I've wanted to set up a small foundry for awhile
[16:56:21] <ssi> lost pla would be a good way to go
[16:56:26] <ssi> and lost foam
[16:56:49] <ssi> I'd love to be able to make larger machine castings by gluing up and shaping foam plugs
[16:56:56] <syyl_> theres nothing like playing with sand and molting aluminum
[16:56:56] <syyl_> https://dl.dropboxusercontent.com/u/24396704/IMG_0628.JPG
[16:56:57] <syyl_> ;)
[16:57:06] <ssi> nice
[16:57:19] <ssi> when I was seriously thinking about it, the stumbling block was finding fireclay and firebrick
[16:57:22] <ssi> I dunno where to get it!
[16:58:14] <syyl_> ebay!
[16:58:24] <ssi> ha
[16:58:50] <syyl_> or in doubt, amazon ;)
[16:59:33] <CaptHindsight> http://www.ebay.com/itm/170988778068 only $9.46 and EPP works Parallel Port DB25 LPT Printer to PCI-E / NOT PCI
[16:59:46] <CaptHindsight> works well with http://www.ebay.com/itm/231175428172 PCI Express (PCI-E) 1X Slot Riser Card
[16:59:59] <CaptHindsight> so you don't have to cable out of the enclosure when PC and motor drivers are in the same enclosure
[17:00:12] <CaptHindsight> http://www.automationtechnologiesinc.com/products-page/breakout-boards/kl-db25-breakout-board beware it comes with a FEMALE DB25 vs male, so you have to use a Male to Male adapter or cable :(
[18:14:26] <ssi> JT-Shop: my buddy is gonna give me a 50gal plastic drum; I think it might work for a sump
[18:14:35] <ssi> going to try to fetch it this evening
[18:14:50] <ssi> and if it doesnt' work out as a sump, I'll cut the top off and I'll have a swarf bucket :D
[18:17:11] <Tom_itx> might be a bit big ehh?
[18:17:27] <ssi> I need at least 35gal, so it'll be fairly too big
[18:17:34] <ssi> but I think I can make a cradle and tuck it under the table
[18:17:54] <Tom_itx> 35?
[18:17:55] <ssi> or you mean as a swarf bucket? dude I have four 5-gal buckets full of swarf right now
[18:18:04] <ssi> yea the table holds 35 gal
[18:18:07] <ssi> plasma water table
[18:18:16] <Tom_itx> doesn't he run his dry though?
[18:18:17] <ssi> and I need to be able to dump it all into the bucket and then raise it with air pressure
[18:18:22] <ssi> I don't think so
[18:18:27] <Tom_itx> hmm
[18:18:36] <Tom_itx> it doesn't have to be full though does it?
[18:18:46] <ssi> ideall you want the water touching the bottom of the bplate
[18:18:51] <ssi> some people even run the plate submerged
[18:19:00] <Tom_itx> yeah i've seen that
[18:19:03] <ssi> but I wonder if that'd screw up ohmic sensing
[18:19:13] <Tom_itx> likely so
[18:19:22] <ssi> seems like a reasonable conclusion :)
[18:19:34] <Tom_itx> distilled water is nonconductive
[18:19:38] <Tom_itx> tap water is
[18:19:49] <ssi> yeah but it has to stay pretty pure
[18:19:53] <ssi> which plasma quench DOESNT
[18:28:40] <SpeedEvil> easy enough to refit the ohmic sensing for AC
[19:37:25] <CaptHindsight> what causes the error: Can not find -sec MOT -var MOT -num 1 Can not find -sec IO -var IO -num 1 Can not find -sec LINUXCNC -var NML_FILE -num 1 Can not find -sec EMC -var NML_FILE -num 1
[19:37:42] <CaptHindsight> and running from command line gives no further error info
[19:39:01] <CaptHindsight> I was trying new configs .ini and I could get Axis to work with only 2 Axis, X and Y, if I try to have just X and Z I get the above errors
[21:47:53] <Jymmmm> MrHindsight: WTH, thats still a waste of a glue gun; they can run around on a rod so we can all chastise and mock them within hear shot =)
[21:51:12] <somenewguy> can someone help me with plunge rates?
[21:51:41] <somenewguy> my minimill is always running fairly close to its capacity if I have ferrous metals in there, but even plastics can fight back if I try to do too much DOC
[21:52:05] <somenewguy> but I can never figure out how much to slow down hte cutter for the ramp down into hte part vs average cutting
[21:53:11] <somenewguy> say I am pocketing a slot .2 wide with a .15 endmill, going thru my speeds and feeds I want a (made up) feed of 12 ipm
[21:53:14] <Jymmmm> half the diamter
[21:53:25] <somenewguy> I never even go that hard, I run 10-25%
[21:53:41] <somenewguy> its only a taig
[21:54:13] <Jymmmm> if you have a 1/4" mill, the dpeth is half as a rule
[21:54:42] <somenewguy> my slot routine ramps down along the first leg of the slot, then cuts at depth for the remainder
[21:55:12] <somenewguy> when I am working in steel I manually drop the feed rate along that ramp to like 40% and then go back to full and get best results
[21:55:35] <somenewguy> working in steel I can actually end out loosing steps on a short slot, since that translates to a faster ramp down, even tho I am using a plunging endmill
[21:56:43] <somenewguy> I want to add to my code generator a smarter ramp section, ie make the ramp angle shallower and/or slow down the cutting operation for hat portion
[21:56:54] <somenewguy> but I can't figure out what kind of parameter I would need to use
[22:16:54] <Tom_itx> can you specify the ramp speed as part of the tool op?
[22:17:14] <Tom_itx> i generally go 50% but you could go 1/3 or so
[22:17:33] <Tom_itx> or use a different entrance approach
[22:19:24] <Tom_itx> you could zig zag to depth if your plunge angle is too great
[22:38:06] <PetefromTn_> evening folks
[22:55:32] <XXCoder1> hey PetefromTn_
[23:13:51] <PetefromTn_> hey XX
[23:14:04] <XXCoder1> whats up man
[23:14:11] <PetefromTn_> ah not much.
[23:14:38] <XXCoder1> cool. I'm bit sad because I changed dept at work now. :( no more cnc router fun
[23:14:47] <PetefromTn_> I am trying to sell my wife's Compound bow so I can use the money to buy her a scope for her new target air rifle.
[23:14:57] <PetefromTn_> oh that sucks.
[23:15:19] <XXCoder1> had additional day today though :D and she said she will ask me to work there once a while at saturadays to catch up so in least i work there sometimes :D
[23:15:37] <XXCoder1> interesting. comound bow
[23:15:38] <PetefromTn_> I know how that goes.
[23:15:44] <XXCoder1> hunting what?
[23:15:44] <PetefromTn_> yeah Compound bow..
[23:16:05] <PetefromTn_> Oh it is a target bow...but you could hunt with it. That is if you remove all the pink bits.
[23:16:22] <XXCoder1> lol ok. what about the rifle
[23:16:24] <PetefromTn_> It is a real nice smooth shooting solocam PSE bow
[23:16:25] <XXCoder1> oh target
[23:16:59] <XXCoder1> cool. not much of bow or rifle fan lol
[23:16:59] <PetefromTn_> The bow itself is actually all black but we outfitted it with a bunch of pink vibration absorbing pieces etc. etc.
[23:17:19] <PetefromTn_> Really I love shooting.. Targets mostly.
[23:18:16] <XXCoder1> guess it can be fun
[23:18:20] <XXCoder1> my hobby is cnc lol
[23:18:24] <XXCoder1> and also lego
[23:18:28] <PetefromTn_> http://imgur.com/6yQxLW2
[23:18:38] <XXCoder1> both sales and once a while set building. not much of MOCer here
[23:18:47] <PetefromTn_> Oh its a blast....especially competition shooting.
[23:19:11] <PetefromTn_> CNC is a nice hobby too I guess but I am into it more to make cool parts and sell them.
[23:19:14] <XXCoder1> :)
[23:19:22] <XXCoder1> I'm pondering artworks
[23:19:31] <XXCoder1> but dunno I just wanna build one and have fun
[23:20:07] <PetefromTn_> then do it man...
[23:20:24] <XXCoder1> indeed
[23:20:42] <XXCoder1> my biggest problem so far is how to source pile of cheal bolts typically used in cnc
[23:20:48] <zeeshan|2> some people use it for a hobby, some people for a living, why not combine both? ive been making sex toys on my cnc lathe
[23:21:02] <XXCoder1> and how to find correct bolts for cnc parts :(
[23:21:51] <PetefromTn_> what kinda bolts ya need...Mcmaster carr has about anything you might want and get it to you quick..
[23:22:14] <zeeshan|2> mcmaster carr is a rip off for bolts!
[23:22:14] <zeeshan|2> :P
[23:22:15] <XXCoder1> thats issue, I dont really know
[23:22:26] <PetefromTn_> disagree...
[23:22:36] <zeeshan|2> i pay half on avg
[23:22:40] <zeeshan|2> locally
[23:22:59] <PetefromTn_> why don't you know?
[23:23:25] <XXCoder1> I dont know how to figure threads yet
[23:23:40] <PetefromTn_> threads for what..
[23:23:55] <XXCoder1> nema23, bearing blocks, so on
[23:24:38] <PetefromTn_> you can just download the nema 23 mounting details and decide which bolts would fit the best in the holes.. Might want to order your motors first just in case.
[23:24:49] <XXCoder1> I have everything but bolts
[23:25:33] <PetefromTn_> Then take your motor down to the local hardware store and figure out which screws fit snugly into the holes and determine how long they need to be based on the motor and mounting plate thickness.
[23:25:34] <XXCoder1> http://www.glacern.com/photos/blueprint_sbr20.jpg
[23:25:36] <XXCoder1> "m6"
[23:25:48] <zeeshan|2> when its just m6
[23:25:57] <zeeshan|2> you assume 'coarse thread'
[23:26:00] <zeeshan|2> which is 1mm pitch for m6
[23:26:36] <XXCoder1> interesting
[23:26:51] <XXCoder1> so I know SBR20 standard lemme check others
[23:56:37] <XXCoder1> strange
[23:56:39] <XXCoder1> canyt find any