#linuxcnc | Logs for 2013-11-11

[00:40:57] <MacGalempsy> my servo amplifier has a tach +/- and it has one going to negative and the other goes to a ground signal, or + terminal on the motor. do I plug the + into the controllerboard and set it as a tach?
[00:51:37] <kwallace> My guess is that the the tach on the motor should go only to the tach input in the amp. LinuxCNC will provide a velocity command, the amp will try to make the tach match the command.
[00:52:48] <MacGalempsy> ok, that sounds good to me
[00:53:24] <MacGalempsy> thanks
[00:53:45] <MacGalempsy> also, is it better to power endstops with the controller board, or external 5v?
[00:55:04] <kwallace> The amp velocity gain will need to be tuned to match your motor and tach characteristics before doing the LinuxCNC velocity loop tuning. Usually there is an amp tuning procedure in the the amp manual.
[00:55:48] <MacGalempsy> the amps should be pre tuned
[00:56:05] <MacGalempsy> because the machine was previously set up and running
[01:02:01] <MacGalempsy> just making sure to plug the amps back to the original motors
[01:07:49] <RyanS> If I wanted to add a VFD to a drill press, is it pretty much a no-brainer to hook it up to a three phase drill press? ie no need to change the motor
[01:08:14] <kwallace> The polarity of the tach and amp input need to match. If they don't match the amp will think that that the motor is going slower when you increase the command, which will tell the amp to go faster until it hits a limit.
[01:10:29] <FreezingCold> I haven't used LinuxCNC, but what exactly is the reason of "selling" it as a distro instead of just Debian/Ubuntu packages?
[01:10:41] <kwallace> RyanS: That sounds good too me, but I haven't seen any three phase drill presses before.
[01:13:21] <RyanS> They seem to be sold as 'industrial', I was thinking of a good secondhand three-phase. Although I don't know if it's possible to abuse a drill press the same as used milling machine
[01:16:20] <RyanS> I guess you could stuff up the bearings
[01:19:43] <kwallace1> Oops, back on line in time to say goodnight.
[01:57:39] <_DJ_> moin
[02:06:13] <archivist> RyanS, often the internal wiring has to be changed in the motor, from star(440) to delta (220) depends on what vfd and your local voltages etc what you actually have to do
[02:07:09] <archivist> assuming you want to run a 440 3 phase on 220(240) single and a vfd
[02:12:08] <RyanS> 415V 3PH, to 240V 1PH , but mainly because I want electronic variable speed
[02:21:43] <Loetmichel> mornin'
[02:34:01] <archivist> RyanS, note not all motors have easy to modify internal connections, the label should show 440 and 220 ratings if it can be connected both ways
[02:35:54] <archivist> the brave will unwrap the winding end connections and modify, the timid buy the expensive 240 single phase in 440 3 phase out inverter (costs a lot more)
[03:15:18] <RyanS> They don't seem too expensive http://www.ebay.com.au/itm/1-5KW-2HP-single-to-3-phase-VFD-Freq-To-400Hz-Motor-Control-VSD-Dual-display-/281199466703?pt=AU_B_I_Electrical_Test_Equipment&hash=item4178cb58cf
[03:17:21] <RyanS> 1.5kw/2hp is actually a pretty serious drill press right?
[03:19:58] <RyanS> Granted thatis a Chinese VFD
[03:22:14] <Loetmichel> RyanS: it is
[03:22:26] <Loetmichel> the cheap chinese ones have 350 to 500W
[03:23:44] <Loetmichel> but you have to have a fitting motor with 3 phase ac
[03:24:10] <Loetmichel> normally there are cheap single phase motors with starter cap on these cheap chinese drill presses
[03:30:13] <RyanS> I think it's an ex-demo.. http://www.wotol.com/1-machtech-bd35-drilling-machine/second-hand-machinery/prod_id/982862
[04:44:25] <archivist> 4 morse taper is more than serious for a drill
[04:44:45] <MacGalempsy> morning
[04:58:11] <RyanS> You could almost mill with a MT4 collet chuck
[05:00:05] <archivist> the bearings in the spindle wont be adjustable for milling probably
[05:00:51] <archivist> is the drill too big for the work you normally do
[05:02:31] <RyanS> Possibly , but 3ph, 415v can be easily converted for variable speed
[05:04:14] <archivist> but if making small stuff the concentricity of chucks is often not as good
[05:05:15] <archivist> they even cannot hold very small drills, so you would need a small chuck and some morse adapters
[05:06:20] <RyanS> am I to understand that with belt drive, let's say you want to step drill *properly* you need to change belts 'thrice'? Normally I just use the target speed for the final drill
[05:07:38] <RyanS> With VFD you can even tap because you can reverse. I think
[05:08:43] <archivist> often one uses a tapping head on a drill, it has the reverse internally geared
[05:09:40] <archivist> while a vfd can reverse its reaction is not really quick enough for tapping
[05:10:26] <archivist> you will need to add braking resistors and adjust the vfd for maximum braking
[05:14:13] <RyanS> I just need more z travel than the current bench drill really and not to piss around with belts
[05:15:04] <archivist> having more than one drill for different jobs can be useful too
[05:16:49] <archivist> I have a high speed drill for small holes, and a bench for middle sized work, currently lack a working floor drill for big work
[05:17:42] <MacGalempsy> when ready to test pins, do I need to have a hal file setup, or can I just test pins in halmeter directly?
[05:20:40] <RyanS> hmm well, I mounted a compound table to the bench drill press, it's okay clearance wis for drilling flat objects, but I have a project that requires reaming. no way it will fit chucking reamers
[05:33:19] <RyanS> I guess in mass production, they don't tend to have dedicated drilling machines these days because the task gets done in a machining centre
[05:34:53] <archivist> yup, they are often just a general workshop tool these days, with a drop in quality which goes with that
[05:37:15] <Loetmichel> who has time to center-punch, predrill and countersink in production these days anyway?
[05:40:45] <RyanS> considering CNC machines can blast through steel plate in 2 seconds
[05:51:16] <RyanS> I want one of those magnetic-base drills, otherwise known as a safecracking drill :p
[06:13:37] <jthornton> mini mag they are called in the ship yard
[06:17:11] <kengu> zero results on search "mendel" or "mendel90" on youmagine
[06:21:22] <kengu> uuh.. here is the missing line. i lost that for a while
[06:21:24] <MacGalempsy> morning jthornton
[06:21:30] <kengu> it did end up on wrong channel
[06:21:50] <jthornton> morning MacGalempsy
[06:23:06] <MacGalempsy> I am trying to determine if it would be better to run powers outs for sensors through the mesa card, or through a external psu?
[06:23:20] <MacGalempsy> any tips
[06:23:27] <MacGalempsy> will be appreciated
[06:27:37] <jthornton> scroll down to the bottom figures http://www.gnipsel.com/linuxcnc/configs/7i77.html
[06:30:00] <MacGalempsy> ok. I figured out the relay coil part. but it was a 50/50 on the ins
[06:30:28] <MacGalempsy> should be easy enough, I got one more 5v phone charger to hack up
[06:31:25] <MacGalempsy> they what is the purpose of being able to put in 24v dc to fieldpower?
[06:32:32] <jthornton> that powers up the 7i7- card and the I/O
[06:36:58] <MacGalempsy> so after testing all the pins in halmeter, and getting everything to work manually, what is the next step?
[06:37:23] <MacGalempsy> would really like to get the axes moving this week
[06:38:41] <jthornton> I usually test the estop, the limit switches then start with the axes
[06:39:47] <MacGalempsy> sounds like a good method. i'll leave you guys alone and get to bed. Thanks for the help, and i'm sure there will be a few more questions tomorrow.
[06:40:03] <jthornton> manually move an axis to the middle and energize one axis then test it
[06:40:14] <jthornton> http://www.gnipsel.com/linuxcnc/tuning/index.html
[06:41:14] <RyanS> I don't get people dicking around with a bunch of clamps on a drill press, just use a compound table and vice and be done with it
[06:41:16] <MacGalempsy> been lurking your site, it seems more helpful than the manual
[06:41:32] <MacGalempsy> again, thanks a bunch.
[06:41:35] <jthornton> lol, I work on both
[06:42:31] <jthornton> sometimes I feel the stuff I put on my web site might be suitable for the manual but try and keep the manual as LinuxCNC specific as possible
[09:08:11] <pzpz> hii
[09:08:24] <pzpz> kwallace: hi
[09:08:50] <kwallace> Good Morning
[09:09:16] <pzpz> i was dream about cnc...
[09:09:30] <pzpz> hi dhoovie|2
[09:09:48] <dhoovie|2> hi pzpz
[09:10:27] <pzpz> what is the difference between mist and coolant?
[09:11:54] <kwallace> Mist is like using a paint sprayer to paint coolant on to the cutting area.
[09:13:23] <Loetmichel> hmm, any ham radio here? i need a schematic for a half decent "comb" generator/transmitter to test our measurement chamber from 10 khz to 1ghz simultaneously ;-)
[09:13:23] <kwallace> Here is a fancy version: http://www.datron.com/accessories/coolant-systems.php
[09:13:26] * JT_Shop has never seen a CNC machine with both and wonders why there is a choice
[09:13:50] <pzpz> so mist is cooling better then flood?
[09:14:15] <Jymmm> Loetmichel: Get a a couple DDR's off ebay
[09:15:01] <Jymmm> Loetmichel: err DDS
[09:15:17] <pzpz> JT_Shop: what do you mean?
[09:16:31] <Loetmichel> Jymmm: too expensive
[09:16:43] <Loetmichel> i would suggest a simple square wave oscillator with a 10khz or 100khz signal and then some filters to straighten the overtones (level)... should work
[09:16:47] <Jymmm> Loetmichel: $4 is too expensive?! you cheap bastrd!
[09:16:55] <Loetmichel> but i havnt seen something like that in a lionmg time, especially not with antennae and groundplane
[09:17:11] <Loetmichel> and dds up to 1ghz is a bit tricky
[09:17:25] <kwallace> I have used mist because my coolant system isn't hooked up. There is much less coolant flow so it drains into a can. The down side is that the mist fills the air and gets on everything including lungs.
[09:17:44] <archivist> Loetmichel, just drive a diode hard to make a comb generator
[09:18:34] <archivist> there is one in my frequency counter :)
[09:18:47] <Jymmm> Loetmichel: Fine, use one of these... https://www.ettus.com/product/details/UN210-KIT
[09:19:20] <jdh> kwallace: http://en.wikipedia.org/wiki/Lipid_pneumonia
[09:19:42] <Loetmichel> Jymmm: ouch
[09:19:47] <archivist> I dont think Jymmm knows what a comb generator is
[09:20:06] <Loetmichel> archivist: seems that way
[09:20:42] <Jymmm> archivist: Nah, Loetmichel was just bitching about $4 being too expensive, figured I show him what expensive really is =)
[09:21:15] <kwallace> Another coolant system uses alcohol, I think, so that the mist evaporates and leaves a clean part.
[09:21:22] <pzpz> what the USRP do?
[09:21:26] <archivist> Loetmichel, sbl1 from minicircuits driven hard may just do it, may need a broadband amp after it
[09:21:41] <Loetmichel> i just want to chec our measurement chabers for plausibility, so the 1 million R&s Spectruim analyzers tend to have problems with bad cantenna cables... abnd we wondered some times in the past few months how the measurements are so erratic good/bad
[09:21:42] <Jymmm> pzpz: It's a SDR
[09:22:22] <archivist> Loetmichel, seen some crappy rf connectors in my time
[09:22:29] <pzpz> kwallace: alcohol - can make fire very easy
[09:22:44] <Loetmichel> archivist: thats exactly my problem, i know how to make a comb generator out of a semiconductor... i DONT know how to straighten out the frequency response fropm "bell shaope" to "more or less linear"
[09:22:53] <pzpz> milling metals make alot of heat
[09:24:38] <kwallace> http://www.cnccookbook.com/CCCNCMillFeedsSpeedsCoolant.htm
[09:24:49] <archivist> Loetmichel, iirc the way they are driven makes them reasonably level or maybe just pass it through a pair of back to back diodes to level it
[09:26:23] <kwallace> http://www.mmsonline.com/articles/alcohol-based-coolant-offers-environmentally-friendly-machining
[09:26:30] <pzpz> kwallace: from the table i see that water is the best coolant?
[09:26:51] <pzpz> kwallace: how the metal / macine not rust?
[09:29:11] <kwallace> In my opinion, the machine needs to be made from the start to tolerate water based coolant. My mill was a filthy rusty mess when I got it, so it will never see water again, as long as I can say so.
[09:30:26] <kwallace> My lathe has only seen neat oil coolant and is in much better shape.
[09:30:48] <pzpz> kwallace: i build an in door machine so evaporate alcohol at the middele of the house...
[09:31:53] <archivist> Loetmichel, I shall look in the manual for one of the counters to see what they did, note these go to 18ghz
[09:32:37] <kwallace> Yeah, a full enclosure and proper ventilation comes in handy.
[09:33:04] <Loetmichel> the r&s SA go up to 7ghz and 10 ghz
[09:33:12] <Loetmichel> but we only have to measure up to 1ghz
[09:33:30] <pzpz> kwallace: there is a coolant that is also can use as lubricat?
[09:33:48] <Loetmichel> its just to test occasionally that all plugs/connectors/preselectors are working and we dont "measure shit" ;-)
[09:34:58] <CaptHindsight> why not reclaim the ethanol? Condense the vapor and collect it back coolant tank. You don't want to breath the vapors anyway.
[09:35:47] <Loetmichel> CaptHindsight: or to smoke nearby
[09:35:50] <Loetmichel> :-)
[09:38:33] <kwallace> The CNCcookbook link above talks about cooling and lubrication. I just pretend to know what I'm talking about.
[09:40:02] <kwallace> I also check the Coromant site when I'm looking for answers, but they don't seem to have much on coolants: http://www.sandvik.coromant.com/en-gb/Pages/search.aspx?q=coolant
[09:40:48] <CaptHindsight> the other problem is the tax on straight ethanol, if it's mixed with ~5% methanol to denature it, the tax may be avoided but then you really don't want to breath the vapors
[09:42:44] <CaptHindsight> http://www.datron.com/ but I see that they make machine that are fully enclosed
[09:43:45] <kwallace> CaptHindsight: A condenser seems like a good idea. Which reminds me that I need to make one to get rid of the water from my compressor air.
[09:45:16] <kwallace> I think the automatic spray direction makes for good youtube videos.
[09:46:30] <CaptHindsight> http://www.datron.com/cnc-machines/m10pro.php I wonder what the price tag is on this?
[09:47:31] <kwallace> Fortunately my lathe came with an enclosure, but I need to find a source for neat oil. No one seems to use it any more.
[09:52:41] <CaptHindsight> http://www.koolrite.com/Koolrite_2290MAX.html I've been using this the past few months. No mold/milder odor but I get sick of how it smells anyway.
[09:58:28] <kwallace> The coolant I have in the lathe is like way oil, with no odor, and has been in the machine for around twenty years with no maintenance. I just need to find more. http://www.youtube.com/watch?v=Zxw7HaD_kxk
[09:58:30] <Tecan> (Zxw7HaD_kxk) "Hardinge HNC Rigid Tapping 2" by "wallacecompany" is "Tech" - Length: 0:01:47
[10:09:34] <archivist> Loetmichel, from what I can see they just drive the step recovery diode with about 1w of power, but they dont show internal circuit of the microwave assembly, nor show any filter between comb gen and mixer
[10:09:48] <archivist> looked in two counter manuals
[10:14:03] <CaptHindsight> kwallace: "Texaco Almag Oil is a straight mineral oil" http://bbs.homeshopmachinist.net/archive/index.php/t-36085.html does it use this?
[10:16:41] <CaptHindsight> kwallace: maybe one of these? http://catalog.mooreballiewoil.com/Asset/pds-127.pdf
[10:34:31] <CaptHindsight> http://www.kickstarter.com/projects/flykly/flykly-smart-wheel
[10:37:00] <CaptHindsight> no pics of the coil, just the magnets
[10:39:37] <kwallace> CaptHindsight: Thanks for the neat oil link. The previous owner, I think said the oil was Chevron 504, but this may be it.
[10:44:41] <kwallace> I would prefer to see the Smart Wheel use an induction motor -- no rare earth to worry about.
[10:46:14] <pcw_home> An no real time regenerative braking from hand controls is a mistake
[10:48:15] <CaptHindsight> not sure if it's just fir people new to electric bikes or if the phone app gimmick is what attracts people
[10:48:34] <pcw_home> Yeah the I-bike
[10:50:07] <kwallace> pcw_home: Do you have any plans on website updates. Passing links to your website is not ideal.
[10:58:12] <archivist> pcw_home, html frames are the problem
[11:01:06] <skunkworks__> (I usually right click on the frame and pass the url from that frame..
[11:03:59] <archivist> wee after some link following http://www.collection.archivist.info/archive/grabs/Screenshot-Mesa%20Electronics%20-%20Mozilla%20Firefox.png
[11:05:51] <kwallace> I usually do a "open frame only" and pass that link, but then the navigation goes away.
[11:06:32] <skunkworks__> right
[11:07:47] <skunkworks__> archivist: I think at the fest he said they are working on a new site
[11:08:46] <archivist> skunkworks__, he mentioned in here one day and one sees it in that screenshot I just did
[11:09:49] <archivist> its the inner window with two outer frames
[11:10:33] <jdh> I remember that happening a lot in the 90s
[11:11:14] <jdh> but, if you had to choose between product engineering and web site design....
[11:11:25] <archivist> then we all stopped using frames :)
[11:11:46] <jdh> yeah, except for those people that had .sigs with links to their Home Page!
[11:12:06] <archivist> and M$ front page users
[11:16:43] <ReadError> thank god MS killed frontpage
[11:18:32] <kwallace> Oops. I tried it again and actually I do this, open main page, right click a link in the nav frame, open in new tab, move to new tab and copy the link which gives: http://wallacecompany.com/tmp/mesanet_screen.png
[11:57:10] <pcw_home> Fixed the frame within-a frame on the store link
[12:08:20] <IchGuckLive> hi all B)
[12:28:16] <JT_Shop> pcw_home, the new store?
[12:29:04] <andypugh> whho! It almost looks like you can buy stuff :-)
[12:29:47] <pcw_home> Kind of cut/pasted our old website into open cart...
[12:30:06] <andypugh> It makes it much easier to give people links to individual cards.
[12:30:40] <andypugh> I will say that the URL blue on the grey background isn't as contrasty as one might like.
[12:33:07] <kengu> pcw_home: i am just putting up an opencart.. starting pretty much today
[12:33:41] <kengu> it is the first time I try with open cart
[12:34:21] <kengu> it is most likely open cart this week and then with the plasma cutter next week
[12:34:39] <pcw_home> opencart seems ok you need a lot of add-ons for an operational store though
[12:35:14] <pcw_home> it nice that you can play with it on a local linux box
[12:36:21] <kengu> i had trouble understanding seo urls but then when I was told (read somewhere) that you need to add manually seo keywords to all things (products, categories, ..) it started to work a lot better.
[12:36:54] <JT_Shop> I use open cart too http://gnipsel.com/spyderstore/
[12:37:15] <JT_Shop> lunch time here
[12:41:28] <kengu> i was looking at http://www.mycashflow.fi/english/ also as a simple solution but as I have some needs for some idling stores with own domain the 49e/month is a bit too much. for active shop that would not be a problem at all.
[12:41:29] <pcw_home> Looks nice JT
[12:41:33] <IchGuckLive> pcw_home: thanks for the hint on timing
[12:41:41] <jthornton> thanks
[12:41:59] <IchGuckLive> pcw you shoudt consider to sell the PNP kits also with a 10ft cable
[12:42:14] <jthornton> I didn't have to add any add ons what did you see that you needed to ad on pcw_home
[12:50:54] <IchGuckLive> pcw_home: is there a loss in sped from 6 to 10ft
[12:55:43] <pcw_home> No but you have to be more careful if you have electrical noise issues
[12:57:24] <IchGuckLive> ok but its not available in germany of your dealer
[13:03:55] <Tom_itx> JT_Shop how's your site going for you?
[13:08:28] <pcw_home> all the credit card stuff, stuff for international orders etc
[13:09:05] <IchGuckLive> pcw_home: will y<ou go for paypal
[13:09:14] <Tom_itx> no
[13:09:20] <Tom_itx> i asked that before
[13:09:27] <IchGuckLive> ok
[13:09:32] <Tom_itx> would be nice if he would
[13:09:40] <kwallace> Bummer.
[13:09:41] <IchGuckLive> agree on that also
[13:09:44] <pcw_home> We will never use paypal
[13:09:54] <Tom_itx> told ya :)
[13:10:14] <pcw_home> as far I am concerned they are a bunch of crooks
[13:10:17] <IchGuckLive> to many costs i know
[13:10:33] <Tom_itx> there are costs associated with CC pay as well
[13:10:55] <pcw_home> too slimy for my tastes
[13:11:11] <IchGuckLive> Ghostbusters !
[13:11:24] <IchGuckLive> O.O
[13:11:26] <kwallace> I like that the payment comes out of my checking account and it's all done, no bill later.
[13:12:17] <kwallace> Is there a way to pay by checking account?
[13:12:38] <Connor> pcw_home: You revamping your website ?
[13:12:59] <IchGuckLive> Connor: he is
[13:13:20] <jdh> I like paypal, but I don't want them taking any money out of my checking account.
[13:13:22] <Connor> Cool. If he needs help or anything. That's what we do.
[13:16:48] <IchGuckLive> hi Nekosan is your mill runnning
[13:21:20] <Nekosan> IchGuckLive: the 3d printer?
[13:21:46] <IchGuckLive> oh id be wrong on that
[13:22:07] <Nekosan> the cnc router mill project is next...
[13:22:30] <IchGuckLive> ah id be right on that ! ;-)
[13:22:30] <Nekosan> just calibrating the 3d printer this morning
[13:25:31] <IchGuckLive> im off BYE its late here
[13:34:36] <JT_Shop> Tom_itx, slow
[14:11:11] * JT_Shop loves to see "it don't work" as a description of a problem...
[14:13:26] <cradek> it's like those people have never had to answer a question before
[14:14:54] <Jymmm> cradek: that may be true.
[14:21:11] <pcw_home> Maybe I was a bit testy
[14:22:37] <pcw_home> It would be nice on home to index systems that you could re-home and check any count errors
[14:23:37] <pcw_home> or I guess any system (check-home)
[14:23:45] <cradek> you can
[14:24:00] <jdh> home, save coords, home again?
[14:24:56] <pcw_home> OK so thats what I should have suggested
[14:25:07] <cradek> I think it's axis.N.motor-offset
[14:25:27] <cradek> record it, home to index again, compare
[14:25:41] <cradek> it should not change, if your encoder works
[14:25:57] <cradek> (untested)
[14:29:16] <PetefromTn> Well I got the package from Digikey today where they said I was being sent a new encoder to replace the one that was missing the base plate. They sent me a new base plate instead LOL Oh well It is what I wanted but I was kinda hoping to have two encoders here one just in case. Gonna have to ante up....
[14:32:24] <kwallace> Does anyone know off hand how 'probe_tripped' from the Python interface gets cleared?
[14:32:59] <cradek> isn't there a CLEAR_PROBE canon call?
[14:35:11] <kwallace> I have no idea. I think I should 'print' its status to see when it sets and clears.
[14:51:17] <CaptHindsight> http://www.kickstarter.com/projects/cartesianco/the-ex1-rapid-3d-printing-of-circuit-boards this will end up being a disappointment
[14:54:08] <andypugh> Well bother! I crasehd the tool on the last operation on that toolholder.
[14:57:59] <CaptHindsight> silver precipitate + used HP cartridges
[14:58:44] <pcw_home> Ouch! hope you didn't damage your work
[14:58:59] <andypugh> Yes, of course I damahed the work.
[14:59:10] <pcw_home> crap
[14:59:29] <andypugh> Ah well, only about 20 hours and £20 wasted :-(
[15:00:16] <andypugh> I can't be bothered to make another one, I will just try not to notice the damage.
[15:01:14] <SadMan> any idea if there's a build of camview-emc for 12.04?
[15:01:22] <pcw_home> bulk it up and use it as a pattern for a casting...
[15:01:59] <andypugh> https://picasaweb.google.com/lh/photo/42LycK8iT2SCpoytNJJhZNMTjNZETYmyPJy0liipFm0?feat=directlink
[15:02:36] <cradek> argh.
[15:02:58] <cradek> anywhere else you'd just file it off.
[15:03:01] <andypugh> I put in a safe radius to make sure that I had fixed the mirror image effect that you see in the 80degree mark. I should have put in a safe diameter.
[15:05:03] <kwallace> cradek: I found emc_probe_clear in emcsh.cc. I just need to figure out what that means. thank you.
[15:06:28] <kwallace> andypugh: I'm feeling your pain, well a little bit.
[15:11:35] <CaptHindsight> http://www.youtube.com/watch?v=Rs6xscd5NIA#t=22 3D-printed disposable panties
[15:11:37] <Tecan> (Rs6xscd5NIA) "Cosyflex - production process (cuts)" by "Tamicare - Textile Reinvented" is "Tech" - Length: 0:00:23
[15:14:40] <CaptHindsight> I predict that in the next decade most clothing will be printed this way vs weaving, cutting and stitching
[15:15:27] <CaptHindsight> and similar to the clothing in Idiocracy without complicated buttons, snaps or zippers
[15:15:42] <kwallace> The next step would be no clothing at all.
[15:16:15] <CaptHindsight> they will have to figure out a way to make money on that
[15:16:21] <jdh> that's probably not such a good idea
[15:16:37] <CaptHindsight> maybe a tax on % of skin exposed
[15:17:01] <jdh> or square meter instead of %
[15:24:56] <CaptHindsight> http://3dprintingindustry.com/2013/11/12/snowing-3d-prints-victorias-secret-swarovski/ must 3D underwear week
[15:30:12] <WalterN> http://www.practicalmachinist.com/vb/cnc-machining/where-does-fanuc-16-hide-loop-counter-121650/
[15:30:43] <WalterN> why are so many people in that thread saying that if programs are edited, said person that edits gets fired?
[15:31:59] <cradek> a lot of people are the smartest people they know
[15:32:13] <WalterN> what?
[15:32:15] <cradek> a lot of people are the smartest person they know? not sure how to say it.
[15:32:52] <toastyde1th> WalterN, because there's a massive, massive difference between how you have to treat untested vs tested code
[15:33:26] <WalterN> tweaking a program to me is the same as tested program
[15:33:51] <toastyde1th> re-read the types of changes they're objecting to
[15:34:02] <toastyde1th> and yes, on big machines, a tweak can take a program that runs fine to crashed
[15:34:25] <toastyde1th> some of the bigger tools i've used are very sensitive to load and chatter
[15:34:36] <WalterN> making a loop thing... no big deal
[15:35:09] <toastyde1th> in a small shop with cheap parts and small machines, sure
[15:35:34] <toastyde1th> confidence isn't worth much if you stand to scrap a bigger part, which a lot of the guys on practicalmachinist are concerned with
[15:36:39] <toastyde1th> there are also issues of altered tool life, which can lead to a crash when nobody's expecting it
[15:37:43] <toastyde1th> if i'm going to start a machine and walk away, i don't want anyone messing with any paramater, anywhere, because I have to babysit that machine for a few hours if any of the cutting parameters change
[15:50:12] <tjb1> lol practical machinist
[15:51:23] <tjb1> More like practical dickheads
[16:03:09] <WalterN> herm
[16:11:53] <WalterN> trying to make a fanuc program loop a certain number of times (say 13 times, for 13 parts in a bar), do I need to set up a do while loop with a variable? or is there an easier way?
[16:12:56] <dougztr> a loop sounds reasonable
[16:13:43] <dougztr> unless there is a canned cycle right?
[16:13:49] <WalterN> I recall in the haas machines, you can do something like goto <sub program #> L<number of loops>
[16:14:10] <_DJ_> gn8
[16:14:18] <WalterN> but thats not fanuc
[16:15:16] <WalterN> the book I'm looking at says P for number of repetitions, but I'm not finding how to do that
[16:15:37] <dougztr> i'm working with haas gear
[16:17:50] <WalterN> I guess I'll just define a variable, add one to it every time, and use a while do loop
[16:20:24] <WalterN> seems like you can with fanuc
[16:20:33] <WalterN> the L thing
[16:28:34] <skunkworks> andypugh: how did you generate the gcode for your rivott tool post?
[16:28:43] <WalterN> can I say something like M98 P25 L13
[16:29:04] <WalterN> where N25 is a line number later on in the program
[16:32:12] <skunkworks> that looks very fanuc like
[16:33:04] <WalterN> I know it will work if the program O25 is defined
[16:33:16] <rob_h> u need a M99 also
[16:33:52] <rob_h> erm, wrong control lol... u need a N number thats not used again some where to loop to, then u put a call later on in the program to loop back to if that makes sence
[16:33:54] <WalterN> but I dont want to define and use the O25 program, I want to just jump to line number 25
[16:35:11] <rob_h> line 25 u need, N1000 ur code... later on, M98 P1000
[16:35:38] <rob_h> N1000 can = any number btw just never needs to be used some where else ur it will jump there or somethign worse
[16:35:50] <rob_h> its so long ago i had to think
[16:38:29] <rob_h> not sure about counting but ur probly into varable programing there... also M99 will jump u back a line after the M98 call btw
[16:38:44] <WalterN> http://www.emastercam.com/board/index.php?showtopic=65434
[16:38:57] <WalterN> they are saying you cant do that?
[16:39:23] <WalterN> internal subprogram
[16:39:25] <andypugh> skunkworks: I used MeshCAM. It seems pretty good.
[16:40:29] <andypugh> WalterN: There is no "GOTO" in LinuxCNC G-code
[16:40:45] <WalterN> thats fine
[16:40:54] <rob_h> should be fine i did it a few weeks back
[16:41:01] <rob_h> can you post a sample of the program?
[16:42:12] <andypugh> rob_h: I take it you are not talking about LinuxCNC G-code?
[16:43:20] <WalterN> rob_h: I'm just trying to figure out all the different ways I can loop with the fanuc controller
[16:43:44] <WalterN> the book I'm going through seems to not have a list
[16:43:46] <rob_h> i talking abotu fanuc as walter aked yes
[16:43:57] <rob_h> dam i cant type
[16:46:47] <rob_h> WalterN, http://pastebin.com/fz3iFNeu hope makes sence was not guna wire a full program
[16:47:44] <rob_h> P does depend on a paramiter i think also but its a standard option P other is Q i think
[16:54:16] <rob_h> for linuxcnc you can just use repeat[] nice and easy :)
[16:58:43] <WalterN> yeah
[16:58:52] <WalterN> it would be nice to have a machine with a modern controller
[17:00:09] <Tom_itx> andypugh, the chip on the base is the only issue?
[17:00:13] <Tom_itx> too bad it happended...
[17:01:14] <andypugh> Well, it wrote off the engraving bit so I couldn't finish the engraving, too.
[17:01:33] <andypugh> And it is more than a chip, it has gouged all along the underside.
[17:01:50] <andypugh> It's functional, but I really was trying for "pretty" too.
[17:01:55] <pcw_home> did it crash in a G0?
[17:02:08] <Tom_itx> ahh
[17:02:46] <Tom_itx> no wood chips before hand ehh?
[17:02:47] <andypugh> pcw_home: Yeah. I put a radius where it should have been a diameter.
[17:06:04] <skunkworks> time to find some more aluminium
[17:06:13] <pcw_home> I wonder is there a way to at least minimize the damage by faulting if you get spindle load or too much axis torque on a G0 move
[17:06:24] <Tom_itx> skunkworks, that's one thing this town has plenty of
[17:06:41] <skunkworks> should send some to andy :)
[17:06:55] <Tom_itx> he could have picked some up when here
[17:07:23] <skunkworks> heh - and as stuarts shop shows - lots of chips
[17:07:24] <Tom_itx> but probably would have cost a fortune to shop
[17:07:27] <andypugh> skunkworks: You or me?
[17:07:30] <andypugh> pcw_home: Maybe, but I doubt that the motor would even have noticed the torque before it was too late, with all the whirling metal.
[17:07:37] <skunkworks> you
[17:07:48] <Tom_itx> pcw_home, by then it's usually too late anyway
[17:07:52] <Tom_itx> the tool is long gone
[17:07:57] <andypugh> skunkworks: That's cast iron.
[17:08:13] <skunkworks> oh - really - wow. I just figured aluminum - it is so shiny
[17:08:22] <Tom_itx> you should invest in some machinable wax
[17:08:35] <Tom_itx> especially for one offs
[17:08:36] <skunkworks> send the patern back off?
[17:08:54] <Tom_itx> yeah he was doing such a pretty job...
[17:09:00] <andypugh> That's why it took 2 x 4 hour machining sessions to make it.
[17:09:59] <Tom_itx> skunkworks, last time i was at the scrap i noticed some 3' rectangular blocks of it
[17:10:11] <somenewguy> ....
[17:10:14] <andypugh> skunkworks: I carved it from a solid block: https://picasaweb.google.com/lh/photo/S8VRD96-azmuEG_DbCnRatMTjNZETYmyPJy0liipFm0?feat=directlink and https://picasaweb.google.com/lh/photo/_G0r_v_xAMLbDRznCRhP-tMTjNZETYmyPJy0liipFm0?feat=directlink
[17:11:11] <somenewguy> anyone here have a mini shriline rotary table?
[17:11:15] <somenewguy> the little 3 or 4 inch version
[17:11:23] <skunkworks> that is what cnc's are for!
[17:11:56] <somenewguy> cause I can't figure out how I am intended to hold things in it
[17:11:59] <mpictor> pcw_home: I want to add SPI to a config that lacks it. which of the 3 spi types do I use?
[17:12:28] <mpictor> pcw_home: and do I need to edit more than the PIN_* file?
[17:13:10] <Tom_itx> somenewguy, no but i do have a cnc sherline
[17:13:23] <Tom_itx> wishing i had one
[17:14:03] <Tom_itx> somenewguy, is the table slotted?
[17:14:11] <Tom_itx> use T slot clamps etc
[17:14:56] <Tom_itx> mpictor are you good at the xilinx software?
[17:15:25] <Tom_itx> i found the logs from when pcw helped with mine
[17:16:11] <pcw_home> mpictor: what you need to edit depends on whether you are using the linuxcnc build scripts or the GUI
[17:16:12] <mpictor> Tom_itx: not too bad
[17:16:17] <mpictor> gui
[17:16:54] <kwallace> emcsh.cc functions are only callable from tcl? "* Description: emcsh.cc
[17:16:55] <kwallace> * Extended-Tcl-based EMC automatic test interface "
[17:17:14] <mpictor> pcw_home: I know I need to edit TopEthernet* to use the PIN file
[17:17:58] <pcw_home> Yes (and with the GUI you need to add-source the PIN_XXX file as well)
[17:18:11] <mpictor> yea I got that
[17:18:35] <mpictor> just trying to figure out how to add SPI to a PIN file that lacks it
[17:18:58] <pcw_home> I think only BSPI is supported in the driver (though DBSPI is pretty much identical)
[17:19:05] <somenewguy> any photos of somethign stuffed into yours? Tom_itx
[17:19:23] <somenewguy> it has 4 tslots, not sure what I am supposed ot make to stick into them
[17:19:35] <mpictor> all I've seen in the files is DBSPI, not BSPI
[17:19:46] <somenewguy> I have ideas obviously, but usually people do it a certain way cause it has been proben to be a lot better than whatever you make up beofre ever actually using the tool lol
[17:19:48] <pcw_home> there are a few PIN_xxx files with SPI
[17:19:58] <Tom_itx> somenewguy, i don't have a rotary.. just the 3 axis cnc
[17:20:04] <somenewguy> oh I misunderstod
[17:20:14] <Tom_itx> wish i did
[17:20:19] <somenewguy> I have a taig, came w/ the rotatary
[17:20:25] <mpictor> yea, but is there anything in particular I need to do to ensure that the spi pins don't overlap with something else?
[17:20:30] <pcw_home> you can grep for them (the pin file with 7I65 in the name use BSPI)
[17:20:34] <kwallace> http://www.cnccookbook.com/CCRotabToys.html
[17:20:35] <mpictor> how they get their numbering is not obvious to me
[17:20:40] <somenewguy> and some parts for a 3 jaw vice that are completly wrong for the setup, which lead to quite a bit of confusion for me for a wile lol
[17:20:42] <somenewguy> while
[17:20:55] <archivist> somenewguy, google t slot nut
[17:20:55] <mpictor> this has spihttps://github.com/mpictor/7i80-hostmot2/blob/master/pin/sp/PIN_SP4_34.vhd#L76
[17:21:03] <mpictor> this has spi https://github.com/mpictor/7i80-hostmot2/blob/master/pin/sp/PIN_SP4_34.vhd#L76
[17:21:19] <kwallace> somenewgut: see my link above.
[17:21:21] <Tom_itx> mpictor i had to map the sserial to certain pins so they would fit the actual IO functions of the board
[17:21:29] <kwallace> Oops.
[17:22:29] <mpictor> Tom_itx: I'm not limited by the hardware, just the fpga configuration - I have a breakout board not a smart serial device
[17:22:39] <archivist> somenewguy, not the same rotary but you can see them in use http://www.archivist.info/cnc/stage6/P1010026.JPG
[17:22:54] <Tom_itx> pcw_home, typo on the sserial add to cart page
[17:23:10] <Tom_itx> 7i84 description is for a 7i70
[17:23:17] <pcw_home> That particular config has 4 instances of DBSPI, each with one channel but you could have 1 instance with 16 channels
[17:23:47] <mpictor> I just want one instance with one channel, along with servo and stepper instances
[17:23:59] <somenewguy> I did, I see how he mounted the 3 jaw onto it using tslots
[17:24:12] <somenewguy> I just figured there must be a "normal" way of mounting the work directly to the rotary face
[17:24:17] <pcw_home> thz tom_itx, I'll tell Lily
[17:24:27] <somenewguy> I don't have any kind of 3 or 4 jaw
[17:24:44] <archivist> somenewguy, same t slot nuts and whatever clamping the job needs
[17:24:49] <somenewguy> and I am obvously not a machinest, so just tryign to figure out if there is a normal way of doing this
[17:25:17] <somenewguy> clamping straight down is fairly obvoius, although the table is so tiny I figure most all work will enver fit on it
[17:25:24] <somenewguy> is there a way of holidng parts radially on it?
[17:25:30] <somenewguy> like how a 4 jaw would
[17:25:35] <mpictor> pcw_home: if I paste those 4 pin lines into another config and delete the 4 they replace, as well as adding to ModuleID, is that enough?
[17:25:54] <mpictor> I'm really confused as to how the pin numbers are determined by ise
[17:25:59] <archivist> somenewguy, yes mount a chuck
[17:26:23] <pcw_home> Pretty much
[17:26:40] <mpictor> ok, thanks :)
[17:26:57] <pcw_home> the pin number are determined by where the pin desc is on the physical IDrom record
[17:28:11] <pcw_home> that is the PINDesc section of the PIN_XXXX file starts at GPIO 0 and goes to the last GPIO on the card (GPIO71 on a 7I80HD for example)
[17:28:29] <mpictor> by the way, the 7i80.zip I downloaded a week or so ago was missing some files - 7i80hd.ucf, i80hd_x*card.vhd
[17:28:35] <kwallace> T-Slot clamps with side force http://www.industrydepot.com/TSlotClamps.htm
[17:28:59] <mpictor> and I assume that there's supposed to be a TopEthernet25* to go with the TopEthernet16*
[17:29:08] <Tom_itx> kwallace, that or camlocks
[17:29:18] <mpictor> ok, that explaination of pin assignment makes sense
[17:29:57] <pcw_home> for a single channel DBSPI and BSPI are basically the same so chose BSPI since its supported
[17:30:18] <pcw_home> TopEthernet16 is for all Ethernet cards
[17:30:33] <mpictor> oh ok
[17:32:21] <pcw_home> (16 bit CPU)
[17:32:38] <mpictor> pcw_home: and how do I set the BSPI frequency for that instance?
[17:32:52] <mpictor> oic - I thought it was fpga size
[17:33:13] <pcw_home> I have no idea how the driver works i presume its a parameter
[17:33:28] <mpictor> oh, it's configurable from the pc?
[17:34:13] <mpictor> pcw_home: thanks for your help!
[17:35:12] <andypugh> mpictor: BSPI is supported in a slightly half-hearted way.
[17:35:30] <pcw_home> sure, Ethernet support for SPI will be even more interesting than other things
[17:36:38] <pcw_home> The SPI interfaces need some work as well to support autosend and DPLL triggered autosend
[17:36:52] <andypugh> mpictor: You basically have to write your own comp that calls functions provided by the Hostmot2 driver.
[17:37:23] <pcw_home> I'm actually using the 7I80 SPI to test the SPI Hostmot2 host interface
[17:37:24] <andypugh> There is a possibility that in the future I might make it work like SSI and BISS (which in turn copy elements of Smart Serial)
[17:38:14] <mpictor> andypugh: ok
[17:38:20] <pcw_home> bbl
[17:38:29] <mpictor> I assume the B means buffered?
[17:38:48] <andypugh> Yes.
[17:39:38] <andypugh> If you look at the mesa_7i65 driver file, that is an example of a comp that uses BSPI. You can probably just modify that for your purposes.
[17:40:17] <mpictor> I've been wondering... what architecture is the cpu synthesized in the fpga? custom?
[17:40:27] <mpictor> ok, I'll take a look at the 7i65
[17:45:21] <somenewguy> stupid network
[17:51:33] <andypugh> pcw_home: I don't think I have a firmware with your new BISS regmap in it. Makes testing hard.
[18:05:42] <JT_Shop> dang near got QCad CAM to produce a working G code file
[18:31:44] <Jymmm> Microwave died yesterday... CL first hit $25, BRAND NEW and not even a mile away... WOOHOO
[18:58:11] <kwallace> Jymmm: It might be easy to fix.
[18:58:38] <kwallace> or at least have some good parts.
[18:58:42] <Jymmm> kwallace: doens't heat, controls work though =)
[18:59:48] <kwallace> The transformers are popular for all sorts of things.
[19:00:13] <Jymmm> Yeah, fingured I'd strip it for what parts it can offer at least.
[19:01:10] <kwallace> http://www.home-workshop.com/MOTWelder.htm
[19:02:11] <Jymmm> heh
[19:02:13] <kwallace> I need a band saw blade welder, but I have been able to fix the ovens I have.
[19:02:57] <pzpz> hi all!
[19:03:22] <micges> hi
[19:03:23] <Jymmm> Well, this one was rusting (cheap paint) below the turntable anyway, so it was expected.
[19:05:00] <kwallace> http://www.searspartsdirect.com/partsdirect/part-model/Sharp-Parts/Microwave-Parts/Model-R530AW/0958/0123245/P9100281/00004
[19:05:49] <pcw_home> mpictor: CPU is custom, (d16W.vhd) Ethernet code is all in etherhm2.zip
[19:08:36] <kwallace> http://mods-n-hacks.wonderhowto.com/how-to/scavenge-high-voltage-components-from-your-neighbors-trashed-microwave-0139278/
[19:13:07] * mpictor wonders what assembler pcw_home uses
[19:34:32] <pcw_home> TASM
[19:37:22] <MacGalempsy> evening
[19:39:55] <pcw_home> mpictor: if you look at d16w.tab, thats the table of instructions for the table driven assembler
[19:40:20] <mpictor> oh, I did see that before. thanks
[19:44:15] <PetefromTn> Evening folks.
[20:09:00] <dougztr> I'm working on my first cnc programming assignment :D
[20:20:19] <tjb1> dougztr: Have fun!
[20:20:22] <tjb1> Gets boring with CAM
[20:23:19] <dougztr> not much tinkering huh?
[20:24:22] <tjb1> I only do plasma cutter now
[20:24:31] <tjb1> or 3d printer but I dont play with that gcode, too long
[20:27:03] <dougztr> i have used plasma cutters by hand
[20:28:16] <dougztr> argh. peck drill cycle bite size ... 3 * diameter?
[21:24:23] <Jymmm> kwallace1: So, I remove the security screws, pop off the cover and there is a sealed envelope attached. Inside... the entire wiring/troubleshooting diagrams =)
[21:26:14] <WalterN> pain in the butt
[21:32:38] <kwallace1> Jymmm: So you are going to give fixing it a try?
[21:59:27] <WalterN> has anyone used drills from FMW fasteners? the price seems pretty good... http://www.fmwfasteners.com/products/High-Speed-Jobber-Drills
[22:07:02] <pzpz> look very expencive
[22:09:24] <Tom_itx> yeah that might be a bit high at least to local prices
[22:09:30] <pzpz> http://www.homedepot.com/p/Ryobi-31-Piece-Drilling-and-Driving-Accessory-Kit-A983101/100671746
[22:09:37] <pzpz> 10 bucks..
[22:10:17] <Tom_itx> those are probably not much better quality wise
[22:10:27] <WalterN> donno, I priced #41 drills and FMW fasteners is a fair bit cheaper than you can get from MSC
[22:10:36] <pzpz> http://www.homedepot.com/p/DEWALT-21-Piece-Titanium-Drill-Bit-Set-DW1361/202279642
[22:11:52] <pzpz> the pilot point look intresting
[22:32:38] <Jymmm> kwallace: Normally I usually do, but the base is rusted out
[22:34:04] <dougztr> for tapping cycles, do I use the regular drilling spindle RPM then calculate the feed rate from that?
[22:42:54] <Jymmm> kwallace: Well shit... I have a uber timer relay, I could make a spot welder for SS . http://www.home-workshop.com/MOTWelder.htm
[22:45:04] <dougztr> I have a whole tube of tri-state buffer chips. you guys probably like those
[22:45:42] <kwallace> I have a couple saws sitting idle because I can't weld blades. I may have to cruise the local thrift shop for a broken oven.
[22:46:17] <dougztr> you bake them?
[22:46:41] <Jymmm> kwallace: CL
[22:47:25] <somenewguy> I like the "it bites" warning
[22:50:22] <kwallace> http://woodworkerspost.com/Forum/viewtopic.php?p=1111
[22:54:54] <somenewguy> well done
[22:55:18] <pzpz> ?
[22:55:23] <tjtr33> the welder is missing the grinding wheel ( and that weld will break _
[22:56:20] <dougztr> do you sharpen them too?
[22:57:27] <tjtr33> kwallace, hey i use the same fm tuner, had to write a python script with an array of buttons to tune different stations. i use a recorder to snag songs.
[22:57:51] <tjtr33> dougztr, you grind the weld down to same thx as blade
[22:58:40] <dougztr> i'm stuck on my hw. 3/8-16 HSS tap into aluminum. how do i find the RPM? treat it like a drill?
[22:59:22] <Tom_itx> slower probably
[22:59:23] <dougztr> i don't have a special speed chart for taps
[23:01:15] <Tom_itx> http://zero-divide.net/index.php?page=fswizard&shell_id=199&load_tool_id=27011
[23:01:28] <Tom_itx> you could try that and use a 'thread mill' as the tool maybe
[23:01:44] <Tom_itx> not sure if that would be accurate or not
[23:01:58] <kwallace> I set my FM tuner this way: http://ubuntuforums.org/showthread.php?t=1991579 and use gnomeradio for the UI.
[23:03:08] <MacGalempsy> can you guys tell me the line I wiould use to set my estop pin to read a voltage for halmeter?
[23:03:13] <Tom_itx> http://www.cheboygantap.com/technical/speeds-feeds/tapping-feed-speed-chart.html
[23:03:25] <tjtr33> kwallace, is the result consistant? arecord fails half the time for me ( i use 'audio-recorder' yes thats the app name )
[23:03:50] <MacGalempsy> how about this?
[23:04:35] <tjtr33> kwallace, i thought that page was familiar, esp after seeing so many of my own posts :) (tomp)
[23:04:39] <Tom_itx> dougztr that last link might get you close
[23:04:58] <MacGalempsy> net estop_sig hm2_5i25.0.7177.0.0.input-00
[23:05:57] <dougztr> Tom_itx: super! thats what i needed
[23:07:14] <Tom_itx> we also used tapping fluid
[23:07:22] <Tom_itx> works better than regular lubricant
[23:27:39] <dougztr> this problem has us plunging an end mill straight into aluminum 1" deep O_o
[23:30:43] <dougztr> my program is essentially complete now. gonna load it into the emulator and see what happens.
[23:51:04] <dougztr> it runs! couple misc typos aside. it looks like it might be reasonably correct too