#linuxcnc | Logs for 2013-12-07

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[01:56:07] <Deejay> moin
[02:10:00] <alex_joni> moin
[03:22:04] <justanotheruser> What is the best CNC machine under $500?
[03:22:14] <ReadError> lol
[03:22:33] <ReadError> wont happen
[03:23:57] <justanotheruser> What is the best CNC machine under $1000?
[03:25:54] <ReadError> idk do some research and figure out what you need
[03:27:13] <ReadError> i reprap could be considered a cnc machine
[03:30:29] <archivist> make you machine out of scrap, retrofit a machine
[03:31:45] <archivist> proof scrap can be used http://www.archivist.info/cnc/stage7/
[03:35:20] <archivist> best can be a faulty cnc off ebay that you retrofit with linuxcnc
[03:42:48] <Loetmichel> justanotheruser: a CNC mill (assumming you meant a mill) NEW for under 1000 eur is either a pile of garbage or a "[incomplete] materials set to build a CNC mill/router".
[03:45:36] <archivist> in here CNC needs qualifying with what you are intending to make because there are so many forms
[03:49:04] <Loetmichel> archivist: for a cnc Mill/router one can safely assume that 1000 eur (and $1000 for sure) will get youe either a pile of crap or an inclompete set of parts when bought new.
[03:49:15] <Loetmichel> regardless of intended use
[03:52:52] <archivist> Loetmichel, I do believe I am under that cost some of this being made on it http://gears.archivist.info/
[03:55:40] <archivist> the source lathe cost nothing, the XY £10 another £20 for metal from scrap yard, steppers and drivers were the real cost
[03:56:52] <archivist> even one of the rotaries was "obtained"
[03:57:09] <archivist> loaned actually but I still have it
[04:01:45] <Loetmichel> archivist: i said : NEQ
[04:01:46] <Loetmichel> NEW
[04:04:34] <archivist> use never mentioned new :)
[04:04:37] <archivist> user
[04:09:23] <Loetmichel> archivist: "[10:06] <justanotheruser> What is the best CNC machine under $500?" i read as "machine series" because on single used pieces you cant say "this type is best" because it depends on the actual State of the maschine (i.e younger, older, heavy use, light use, etc)
[04:10:07] <archivist> is this the 5 minute argument or the full half hour
[04:10:53] <Loetmichel> *grmbl* ... just installed xubuntu 13.10 on a gaming machine... no sound indicator/no sound/no sound buttons in the preferences window...
[04:12:07] <Loetmichel> lets not argument about it. its not worth it, user seems to be a cheapskate anyway ;-)
[04:12:35] <archivist> hey I am a cheapskate!
[04:13:44] <toastyde2th> man
[04:13:52] <toastyde2th> my old work had a riiiiidiculous lathe they got for nearly free
[04:14:17] <toastyde2th> it would have been perfect for emc
[04:14:25] <toastyde2th> they got the original control
[04:14:28] <toastyde2th> ...from the late 50s
[04:14:36] <toastyde2th> back when it was just "NC", not "CNC"
[04:15:07] <toastyde2th> vacuum tubes and a bunch of cabinets
[04:15:34] <toastyde2th> thing was ridiculous and had the highest positional repeatability of any machine i've ever worked on
[04:15:42] <toastyde2th> it was repeatable to something like two millionths of an inch
[04:15:55] <toastyde2th> but the ballscrews were either 4" or 5" in diameter
[04:17:05] <toastyde2th> it swung something like 30" and had 20" or so of Z travel
[04:17:07] <justanotheruser> Loetmichel: no, you were right, I meant a mill
[04:17:44] <toastyde2th> they put some dipshit G&L control on it though, which wasn't even a machine tool control
[04:18:23] <Loetmichel> justanotheruser: the electronics and small steppers for a 3 axis cnc router costs about 200-500 eur alone
[04:18:56] <Loetmichel> so you have nothing to less remaining for your mechnanics. -> wont happen
[04:19:44] <toastyde2th> the only real chance you have is an older, larger lathe with a blown control
[04:20:12] <toastyde2th> sometimes they'll go for less than scrap just to get them out of the shop
[04:21:16] <toastyde2th> other downside is you have to have the space for an unenclosed, slightly large lathe
[04:21:37] <archivist> or mill
[04:23:07] <Loetmichel> toastyde2th: AND the load capacity on the floor if it isnt at ground level ;-)
[04:23:20] <toastyde2th> yeah if it's not on ground level you're not fitting an old machine period
[04:23:29] <toastyde2th> they weigh so much more than most equivalently sized things
[04:24:12] <toastyde2th> we had an OKK horizontal mill from either the super early 70s or late 60s, 20" cube envelope
[04:24:19] <toastyde2th> it was like 60k lbs
[04:24:36] <toastyde2th> just this massive thing for only 20" of workspace
[04:25:12] <toastyde2th> never really complained much about heavy facemilling though, I really liked it
[04:25:17] <toastyde2th> nobody else did because no enclosure
[04:25:31] <toastyde2th> but that made it way easy to set up
[04:26:00] <archivist> enclosures make for difficult to use
[04:26:22] <toastyde2th> esp for small run shit where you're making like... two parts
[04:26:30] <toastyde2th> enclosures are nice when you have to make 400 of something
[04:27:13] <toastyde2th> that thing did throw coolant goddamn everywhere, we should have hung a plastic curtain or something
[04:27:26] <toastyde2th> it was like a small lake
[04:27:57] <toastyde2th> we also had a really nice manual lathe that was imported, i forget the brand
[04:28:16] <toastyde2th> but it was based off something like a late model leblond pattern, 20"x80"
[04:28:28] <toastyde2th> wish i had that thing
[04:28:32] <toastyde2th> it ran so, so quiet
[04:28:38] <toastyde2th> lots of power
[05:16:06] <archivist> time to open a parcel, sliding head spindle
[06:31:10] <jthornton> I usually only make one part but sometimes get to make two
[06:35:28] <jthornton> looks like the snow is over with and only a tad of sleet/snow for Sunday
[08:04:27] <awallin_> hi all, anyone around interested in the cutting-simulation discussions on the list?
[08:11:52] <archivist> lots of us want it :)
[08:12:35] <jthornton> lol, yep
[08:12:47] <archivist> my comment seemed to be ignored in that thread
[08:15:37] <awallin_> archivist: and your point was?
[08:16:11] <archivist> add your stuff to vismach
[08:17:02] <awallin_> ok.. can vismach be made to run faster than 'real-time' i.e. programmed g-code speed?
[08:17:16] <archivist> then all machine types become possible not just 3 axis mills
[08:18:01] <awallin_> for big g-code programs its important to simulate them faster than it takes to run them
[08:19:04] <archivist> I suppose that means vismach has to move to a sensible compiled language rather than interpreted
[08:19:40] <awallin_> ? not sure ?, I thought it was driven more or less from AXIS, which runs the g-code as if there was a real machine attached
[08:20:16] <archivist> yes but its still python
[08:20:46] <awallin_> sure, the heavy lifting in terms of cutting-simulation and maybe 3D view need to be fast
[08:22:36] <archivist> it would also allow the users to see fixture problems too
[08:23:46] <awallin_> one problem is that I think the link between AXIS/linuxcnc and vismach is just joint positions, i.e. joint positions are sampled at some (servo) rate, and sent over to vismach. for fast simulation we need to deal with higher level primitives, i.e. complete G1 G2 G3 moves
[08:25:41] <archivist> if you are at the sampled periods would that also speed up the work, not bothering with the intermediate positions
[08:25:59] <archivist> sort of good enough
[08:31:20] <archivist> because the machine is modelled in vismach with the addition of the fixtures, material and tool shapes we could have an open source http://www.cgtech.co.uk/
[08:31:57] <jthornton> cool
[08:32:18] <archivist> that my dream :)
[08:33:16] <awallin_> I still think the commands to the cut-sim need to be complete G-code moves, not sampled positions
[08:33:41] <archivist> I must admit to winding up a vericut sales droid the other week
[08:34:50] <archivist> I can see why you think that too
[08:35:12] <Tom_itx> it is not what you programmed otherwise
[08:35:15] <archivist> but it adds a lot of processing
[08:35:59] <awallin_> well sampled positions adds a lot of processing in the cutsim engine
[08:36:19] <archivist> well as vismach is following what axis is it is the programmed moves
[08:36:48] <archivist> well as vismach is following what axis is, it is the programmed moves
[08:37:37] <Tom_itx> http://www.camsoftcorp.com/prod08.asp
[08:37:44] <Tom_itx> we used to use that
[08:38:22] <Tom_itx> not nearly free though
[08:43:08] <Tom_itx> 11 F
[08:43:13] * Tom_itx stokes the fire
[08:44:48] * jthornton hasn't been out to see if a fire is still going yet
[08:45:48] <jdh> 70F and a little rain.
[08:55:26] <Tom_itx> but... no white stuff to plough
[08:57:08] <kengu> what is the name or term for dustshoe as I cannot find any on ebay
[08:57:13] <jdh> hard to go biking in the snow.
[09:05:34] <Tom_itx> kengu, you mean a way cover or bellows?
[09:06:03] <Tom_itx> http://www.ebay.com/sch/i.html?_odkw=way+cover&_osacat=0&_from=R40&_trksid=m570.l3201&_nkw=way+cover&_sacat=0
[09:34:54] <IchGuckLive> hi all B)
[09:42:00] <CaptHindsight> what's the best way cover for under $100? :)
[09:43:55] <ReadError> whats the best hamburger for under a dollar
[09:44:43] <CaptHindsight> in the present day or throughout time?
[09:44:52] <IchGuckLive> CaptHindsight: grass is always a good thing
[09:46:39] <CaptHindsight> IchGuckLive: plus they have a Tiki vibe http://www.tikiescapes.com/shop/images/Square%20Palm%20Leaf%20Sewn%20Thatch%20Cover_12.jpg
[09:49:57] <CaptHindsight> I'm really happy that the automotive ECU makers don't also make machine controllers
[09:54:56] <Tom_itx> CaptHindsight would they crap out after 5 yrs service?
[09:56:28] <IchGuckLive> CaptHindsight: depends on where the waxy is it coudt be the party place for the hole town
[10:12:48] <CaptHindsight> http://oi39.tinypic.com/xofndu.jpg ECU stepper motor driver without any over current protection
[10:30:53] <Jymmm> CaptHindsight: Mmmmm crunchy =)
[12:42:23] <IchGuckLive> hi all B)
[13:02:40] <jesseg> Mornin' IchGuckLive
[13:03:36] <IchGuckLive> hiu
[16:19:34] <Deejay> gn8
[16:22:30] <kengu> Tom_itx: chip guard or likes
[16:40:41] <mrsun_> anyone here using Aspire ? =)
[16:49:17] <jdh> I have played with aspire
[16:51:03] <andypugh> Lubuntu installer, which language is English
[16:51:06] <andypugh> http://imagebin.org/281099
[16:53:01] <Tom_itx> hope you got better eyes than me
[16:54:07] <andypugh> I don't think eyes help, the font is 4 pixels high (for capitals, 3 for lower case)
[16:54:26] <Tom_itx> who's idea was that?
[16:55:09] <andypugh> I think I blame Intel
[17:01:03] <Tom_itx> hope you know the magic way thru the install to fix it
[17:07:15] <andypugh> Yeah, you need to blunder through, then open a terminal window, then guess your way to setting the terminal window to 128 point fonts, then do this: http://lower-order.blogspot.co.uk/2012/11/font-size-in-lightdm.html
[17:14:44] <Tom_itx> gonna rewire the control this evening i think
[17:32:46] <CaptHindsight> graphical installs are for lewsers anyway :)
[18:29:45] <CaptHindsight> andypugh: http://www.youtube.com/watch?v=S6OZXdRoogY 2014 Ford 3D Printing - Official Promo
[18:32:39] <andypugh> Ihave watched the very machines at work.
[18:33:36] <Tom_itx> anybody have hole spacing dimensions on the 7i47?
[18:33:40] <Tom_itx> it's not in the pdf
[18:33:53] <andypugh> I haven't been to the foundry, but the printer room looked like my workplace.
[18:41:39] <Jymmm> andypugh: is it all printing for lost casting ?
[18:41:59] <Jymmm> well, minus the loss part =0
[18:41:59] <andypugh> it's printing sand cores
[18:42:05] <Jymmm> ah
[18:42:15] <andypugh> They print parts too.
[18:42:16] <Jymmm> andypugh: whats the binder?
[18:42:33] <andypugh> I have driven cars where all the intake ducts were 3D-printed
[18:42:51] <andypugh> No idea what the binder is.
[18:43:05] <CaptHindsight> the binder is a monomer
[18:43:07] <andypugh> I suspect prometal won't say
[18:43:09] <Jymmm> andypugh: thermal? chemical? ultrasonic?
[18:43:13] <Jymmm> ah
[18:43:14] <CaptHindsight> thermal set
[18:44:10] <CaptHindsight> the binder is ink-jetted onto the sand layers
[18:44:28] <Jymmm> ah
[18:44:59] <CaptHindsight> spread a later of sand, inkjet the areas that you want for the mold, repeat....
[18:46:08] <Jymmm> Yeah, I want to try that with sugar in my laser. But I need to iface the Z axis via it's serial port independantly from it's XY and laser
[18:46:24] <CaptHindsight> keep it a secret
[18:46:34] <Jymmm> whys that?
[18:47:44] <CaptHindsight> kidding, things like this tend to be either trade secrets or obscure patents
[18:47:44] <Jymmm> CaptHindsight: whys that?
[18:47:48] <Jymmm> ah
[18:48:35] <Jymmm> Well, I send jobs to the laser via it's paraport, but To control the Z requres it's serial port and I'm not sure how to mix and match them commands wise
[18:48:51] <CaptHindsight> Candyfab used a hot air nozzle
[18:49:10] <CaptHindsight> http://candyfab.org/
[18:49:21] <Jymmm> Eh, I can just fuse the sugar with the laser itself
[18:49:57] <CaptHindsight> sweet sls :)
[18:50:48] <andypugh> Well, what a waste of a day. I have now spent 14 hours installing kernels, compiling LinuxCNC versions and reconfiguring, and I am now only a few hours short of having the same nearly-working system that I started with
[18:51:05] <Jymmm> andypugh: Congrats?
[18:51:19] <Jymmm> andypugh: You have come full circle grasshopper!
[18:51:23] <CaptHindsight> or maybe selective laser sintering of saccharides = SLSS
[18:52:12] <Jymmm> CaptHindsight: I was thinking just various stages of carmel for translucent/obaquiec and color variances
[18:52:43] <andypugh> Selective Laser Using Toffee (SLUT)
[18:52:53] <Jymmm> HAHAHAHAHA
[18:52:56] <Jymmm> andypugh++
[18:55:04] <CaptHindsight> http://the-sugar-lab.com/
[18:56:45] <CaptHindsight> they use sugar + inkjet for binder and color
[18:57:02] <CaptHindsight> http://www.3ders.org/articles/20130910-3d-systems-buys-the-sugar-lab-maker-of-3d-printed-sugar-confections.html
[18:57:06] <Jymmm> Whole Handicrafts Optically Rendered Edible Sugars
[18:58:05] <andypugh> That's my retirement plan, have an idea and get myself bought out by 3D Systems
[18:59:08] <CaptHindsight> printed gummy bears
[18:59:19] <andypugh> I have a 3D-printed V8 engine on my desk made from corn starch.
[18:59:59] <Jymmm> andypugh: does IT use a binder?
[19:00:08] <andypugh> In theory it would make a decent core for a lost-wax casing, to make a 273cc V8.
[19:00:33] <andypugh> Yes, it seems to be bound by a green liquid.
[19:00:37] <Jymmm> starch is a sugar, so it should therma bond, yes?
[19:01:24] <CaptHindsight> it works on pressed shirts
[19:01:28] <Jymmm> Fuck it, brb.... grabs box of corn starch and the torch!
[19:03:52] <andypugh> http://www.youtube.com/watch?v=y5z6LxiUB6A
[19:04:07] <andypugh> He has to be trying to spell that badly!
[19:05:07] <andypugh> http://en.wikipedia.org/wiki/Dust_explosion
[19:06:02] <NickParker> andypugh: where.. where did you find that?
[19:06:33] <Jymmm> Well, it sorta worked. uploading videos now
[19:06:40] <andypugh> I already knew that there had been a custard explosion at the Birds plant. Then I googled and found that.
[19:07:33] <andypugh> We deliberately caused a custard powder explosion in Chemistry at school. It was grate
[19:07:45] <CaptHindsight> things looked different back then
[19:09:09] <andypugh> (I can normally spell, but when talking about skool one is obliged to spell like Molesworth): http://en.wikipedia.org/wiki/Nigel_Molesworth
[19:09:20] <DaViruz_> in hindsight!
[19:13:25] <Jymmm> If I take something ike this, Can I turn it into an accurate thrmometer like wiht an arduino? http://www.ebay.com/itm/Standard-TS172T-Engine-Coolant-Temperature-Sender-/200999023241?pt=Motors_Car_Truck_Parts_Accessories&fits=Year%3A1988|Model%3ACivic&hash=item2ecc79b289&vxp=mtr
[19:14:53] <Jymmm> 1st http://v5.tinypic.com/player.swf?file=ftnfbb
[19:17:48] <andypugh> Jymmm: Probably.
[19:17:53] <CaptHindsight> depends on what you mean by accurate
[19:18:21] <andypugh> I would guess that it changes resistance. A bridge circuit might help
[19:18:34] <Jymmm> 2nd http://v5.tinypic.com/player.swf?file=hvattl
[19:21:06] <Jymmm> andypugh: Yes, resistive. a bridge??? as I understand it: -20c ~= 15000-18000 ohms, 20c ~= 1000-4000 ohms, 80c ~= 200-400 ohms
[19:21:39] <CaptHindsight> Jymmm: what temp range do you need?
[19:22:10] <andypugh> The Wheatstone bridge is a neat way to convert the change in resistance of one or more resistive elements into a voltage that varies from zero to (not zero)
[19:22:10] <Jymmm> CaptHindsight: 40F to 300F
[19:23:00] <Jymmm> CaptHindsight: Maybe a lil higher for fudge factor
[19:23:29] <Jymmm> andypugh: I'll check it it.
[19:23:57] <Jymmm> I'd like an accuracy of one degree
[19:24:03] <andypugh> So, you set up 4 resistors in a square (typically two of them are part of a potentiometer) and then you can zero the output voltage. Then any change in resistance of one of the other legs changes the output voltage. It's very useful because it is much easier to amplify 0-100mV then 10.000 to 10.100V
[19:25:07] <CaptHindsight> http://en.wikipedia.org/wiki/Wheatstone_bridge
[19:25:59] <CaptHindsight> http://www.magnet.fsu.edu/education/tutorials/java/wheatstonebridge/index.html
[19:27:02] <andypugh> it is very common to set up that circuit where all 4 elements are strain gauges (typically with parallel nulling resistors on 2 legs)
[19:28:28] <andypugh> If you arrange it so that opposite pairs are compession and tension, then you automatically get compensation for itemperature variation both in the gauges and the material of the load cell.
[19:29:19] <andypugh> It is pretty easay to make a 1um resolution measurement device that way, using a bit of bent clock-spring and $10 of strain gauges,
[19:34:38] <CaptHindsight> Jymmm: http://www.walmart.com/ip/Taylor-Digital-Cooking-Thermometer/7894646
[19:37:05] <CaptHindsight> -12C and it's not even winter yet
[19:37:42] <andypugh> I am scheduled to spend 2 weeks in Saut St Marie in early February
[19:40:26] <andypugh> (Sault St Marie, when I check)
[19:40:35] <CaptHindsight> thats not far from Frostbite Falls
[19:40:59] <andypugh> The original plan was Thompson, Manitoba.
[19:41:48] <andypugh> But we figured that the cars would have to be put in the fridges to keep them warm enough to start in Thompson.
[19:41:59] <CaptHindsight> yeah
[19:42:58] <CaptHindsight> we still had 30C+ days here 2 months ago
[19:44:00] <andypugh> Looks like Thompson is actually going to warm up a lot in the next week or so: http://www.accuweather.com/en/ca/thompson/r8n/december-weather/49000
[19:44:12] <CaptHindsight> heading back to south China soon anyway, 5-20C depending on how to the coast
[19:44:30] <CaptHindsight> how close
[19:44:41] <andypugh> It was snowing in Qingdao when I left (March)
[19:45:00] <CaptHindsight> yes, up north
[19:45:33] <CaptHindsight> it's like the midwest US, still piles of snow and then 20C
[19:45:46] <CaptHindsight> no real spring or fall
[19:46:06] <andypugh> yes, I suppose it is. For some reason I was equating "being on a south-facing coast" with being in the south.
[19:47:26] <CaptHindsight> wouldn't Greenland be a shorter trip?
[19:48:35] <andypugh> The cars are being made Just In Time in Detroit
[19:48:53] <andypugh> Normally we use Rovaniemi in Finland.
[19:49:46] <andypugh> I actually quite like Rovaniemi. Friendly locals, and after 10 years of annual trips, I know my way around.
[19:50:18] <andypugh> Thompson was described by a colleague as "A town of miners and stripppers and not a lot else"
[19:50:54] <CaptHindsight> sounds about ( A-Boot) right
[19:52:40] <CaptHindsight> do you test them for cold weather behavior?
[19:53:07] <andypugh> Yes, exactly.
[19:53:18] <DaViruz_> in sweden we enjoy mocking the finns for being grumpy, alcoholic and knife obsessed
[19:53:27] <DaViruz_> in reality we are exactly the same and don't mind it at all
[19:53:38] <CaptHindsight> andypugh: what do they use for engine oil?
[19:54:12] <andypugh> We check that they actually start, and we check that they run properly when the intake air is very cold, and that the heaters work. We also accidentally test that the door handles don't become very brittle (they did, one year)
[19:54:18] <CaptHindsight> DaViruz_: how about the Norwegians?
[19:54:36] <DaViruz_> we mock them for being overly happy and athletic, and quite stupid
[19:54:38] <andypugh> DaViruz_: One year we tested in Jokkmokk. It wasn't so very different.
[19:54:59] <DaViruz_> they mock us for being grumpy and stupid
[19:55:18] <andypugh> CaptHindsight: Engine oil is the same as anywhere else. 0W30
[19:55:36] <andypugh> I don't know where we go from 0W oil...
[19:55:50] <CaptHindsight> -5W30?
[19:56:07] <andypugh> Or is it 00W30? Like knitting-needles?
[19:56:45] <DaViruz_> and every other measrring system where they found out that making the largest size zero wasn't such a great idea
[19:59:13] <CaptHindsight> xW-20
[19:59:34] <andypugh> It seems that only UK needles work that way, US needles can't get any smaller. http://en.wikipedia.org/wiki/Knitting_needle#Needle_gauge
[20:00:48] <DaViruz_> but US wires can get larger!
[20:01:18] <DaViruz_> let's just make it 5iW30, because complex numbers are surch fun
[20:34:34] <Jymmm> CaptHindsight: Thanks, but I need to both read and control a heating element
[20:36:08] <CaptHindsight> Jymmm: you can hack the circuit in the display. I used one or similar from wallymart since it beeps at the set temp
[20:36:29] <CaptHindsight> tie the beeper to a controller of choice
[20:37:12] <Jymmm> CaptHindsight: 1) not avaiable from walmart, 2) bad reviews... http://www.amazon.com/Taylor-1478-21-Stainless-Programmable-Thermometer/dp/B001GD1WHU
[20:37:37] <Jymmm> Better http://www.amazon.com/Taylor-1470-Digital-Cooking-Thermometer/dp/B00004XSC5/ref=pd_bxgy_k_img_z
[20:37:50] <Jymmm> better reviews that is
[20:38:22] <CaptHindsight> we used it with a $20 hotplate (pancake maker style) to heat samples
[20:38:40] <Jymmm> http://www.amazon.com/ThermoWorks-Original-Cooking-Thermometer-Timer/dp/B0019R4HQQ/ref=cm_cr_pr_sims_t
[20:39:10] <CaptHindsight> it's around here somewhere
[20:39:41] <Jymmm> CaptHindsight: Yeah, That's kinda what I'm doing. I have an IR gun too, but I'm also looking for a temp controller and abuse-proof sensor
[20:40:08] <Jymmm> I thought a car sending unit could take the abuse
[20:40:25] <Jymmm> and bolt into a contianer
[20:40:39] <CaptHindsight> what are you heating?
[20:41:12] <Jymmm> water, plastics,
[20:47:21] <andypugh> Night folks
[22:23:43] <Tom_itx> updated the control a bit: http://tom-itx.dyndns.org:81/~webpage/cnc/psu/control8.jpg
[22:28:36] <Tom_itx> Jymmm, notice the covered switch now
[22:33:40] <Jymmm> Tom_itx: is that all five sides?
[22:34:39] <Jymmm> Tom_itx: very cool =)
[22:35:48] <Tom_itx> you know those blister packs you rip your finger open trying to get the stuff out?
[22:36:01] <Tom_itx> guess where that cover came from :)
[22:36:23] <Jymmm> HAHAHAHA... *PERFECT* use for em
[23:17:09] <jesseg> Anyone around?
[23:23:11] <jdh> doesn't look like it.
[23:23:58] <jesseg> haha
[23:24:57] <RyanS> I am not here either
[23:24:59] <jesseg> I'm trying to figure out why LinuxCNC is moving the A axis (LINEAR, INCH) an inch when the gcode file is in MM. XY and Z all move correctly
[23:39:16] <Tom_itx> did you set it up in the ini?
[23:39:23] <Tom_itx> TYPE = ANGULAR
[23:40:08] <jesseg> TYPE = LINEAR for axis A
[23:40:16] <jesseg> Oh
[23:40:39] <jesseg> Does Slic3r put out degrees for the extruder (A)?
[23:40:48] <Tom_itx> no clue
[23:40:59] <jesseg> Because we put the extruder to linear, and calibrated it that way in LinuxCNC
[23:41:04] <jesseg> I will go ask that in #slic3r
[23:42:46] <Tom_itx> then you would also want to make sure your SCALE is correct
[23:43:49] <jesseg> Well, within LinuxCNC scale IS correct. Checked that by jogging an inch in 0.1 inch steps, and measuring the distance moved on filament
[23:44:53] <jesseg> Actually, checked it by jogging 10 inches :P
[23:54:22] <jesseg> You know, I think it's a bug in LinuxCNC - only question is it a jesse bug or a LinuxCNC bug :P
[23:54:51] <jesseg> It's like LinuxCNC is forgetting to convert mm to inches for the A axis -- but not for XYZ as they work fine
[23:57:00] <tjtr33> does it seem like A is considered to have rotary units? ( therefore no conversion )
[23:57:39] <jesseg> Slic3r which is producing the Gcode files puts out all mm on all axis. There is no question about that. And that's what it should be doing.
[23:58:16] <jesseg> However, this line: "G0 Z0.400 F12000.000 A-3.00000" is causing the filament axis to move 3 inches.
[23:59:25] <jesseg> Even though LINEAR_UNITS = inch, and [AXIS_3] \n TYPE = LINEAR