#linuxcnc | Logs for 2014-07-09

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[01:32:14] <archivist> skunkworks_, you would never stop at two machines :)
[01:43:15] <RyanS> These things only designed to work in pairs? http://www.ebay.com.au/itm/2pc-12mm-KFL001-Pillow-Block-Bearing-Flange-Block-Bearing-/281324890697?pt=LH_DefaultDomain_15&hash=item4180452a49 because they are self aligning
[01:44:22] <archivist> there are almost no bearing that work alone
[01:45:06] <archivist> self aligning bearings allow shoddy mounting
[01:47:27] <RyanS> hmm I want to make chip brush wheel for my bandsaw, I suppose I could put a 30 mm washer in the back to 'lock'bearing at 90
[01:48:00] <RyanS> . I can't be bothered making my own housing, just for that
[01:52:33] <RyanS> Why do have they usually have an oil nozzle? Is not like it has to swivel around all the time,
[01:57:37] <Deejay> moin
[02:01:45] <Loetmichel> mornin'
[02:30:12] <Flipp> I don't know much about leadscrews. Anyone on that has experience with them?
[02:38:25] <archivist> grrr wait for an answer..... 5 minutes is not a proper IRC wait
[02:48:22] <syyl_ws> its not even a proper question
[02:48:23] <syyl_ws> ;)
[02:48:42] <Deejay> ^^
[02:51:31] <RyanS> As is hilarious, there is a place in Australia selling aluminium profile to "hobbyists"For DOUBLE the price of 'proper'suppliers
[02:52:37] <archivist> he will be buying from proper and then there is cost of selling and profit, what do you expect
[02:53:47] <archivist> for abusive profit see jewellery mark up
[02:53:58] <syyl_ws> whats the problem, just dont buy there?
[02:54:31] <RyanS> , for example, I bought some cutting tools and directly from Guhring, and it was cheaper than some cutting tools from model engineering places
[02:55:13] <RyanS> I'm just saying and eBay store and readily accessible prices seem to indicate cheap to people
[02:55:50] <RyanS> Although in Australia, everything is ridiculously priced
[02:56:26] <archivist> your $ is worth less so it will look a higher price
[02:57:10] <RyanS> It's pretty much across the board. Everything is pretty expensive
[03:44:56] <Tom_itx> RyanS, always buy as close to the original source as possible
[03:46:04] <Tom_itx> although most of them have caught on and sell to the public at 'public' prices like the end retailers
[03:46:35] <RyanS> yeah
[08:11:27] <Loetmichel> *gnah*... i should have measured before ordering these couplings. too big. so i had to fire up the late... http://www.cyrom.org/palbum/main.php?g2_itemId=15011 (left turned down, mittle original, right as bought... ) http://www.cyrom.org/palbum/main.php?g2_itemId=15014
[08:12:57] <jdh> what were teh original couplings?
[08:13:14] <jdh> got any pics of stuff clamped to your table?
[08:13:43] <Loetmichel> jdh: thje middle ones
[08:13:48] <jdh> the couplers that came with mine look like pretty plain lovejoy style
[08:13:54] <jdh> yeah, didn't see that pic at first
[08:16:34] <jdh> the breakout board that came with mine doesn't have any physical pins for additional IO
[08:17:25] <Loetmichel> jdh: i dont cclamp
[08:17:27] <Loetmichel> i glue
[08:17:28] <jdh> It has 3 holes marked PWM-IN with GND/SIG/VCC. PWM in to what though?
[08:17:39] <jdh> to the aluminum table?
[08:17:44] <Loetmichel> even the occasional used vice is glued to the tapbe
[08:17:52] <Loetmichel> to the pvc vaccuum table
[08:18:18] <Loetmichel> the vaccum table is screwed to the aluminium
[08:18:23] <jdh> gotcha
[08:19:00] <Loetmichel> http://www.cyrom.org/palbum/main.php?g2_itemId=14682
[08:19:08] <Loetmichel> http://www.cyrom.org/palbum/main.php?g2_itemId=14685
[08:19:18] <Loetmichel> http://www.cyrom.org/palbum/main.php?g2_itemId=14688
[08:19:29] <jdh> your vfd is massive compared to mine
[08:20:22] <Loetmichel> http://www.cyrom.org/palbum/main.php?g2_itemId=14766
[08:20:40] <Loetmichel> its the bigger one
[08:20:46] <Loetmichel> 2.2kw i think
[08:21:43] <jdh> mine was mounted inside the electronics enclosure
[08:23:25] <jthornton> jdh, you get all your stuff finally?
[08:23:25] <Loetmichel> mine came solo
[08:24:06] <Loetmichel> http://www.cyrom.org/palbum/main.php?g2_itemId=14115&g2_imageViewsIndex=1 <- all the parts just unpackaged
[08:24:15] <jdh> yeah. spent last night calibrating/etc
[08:24:34] <jthornton> got a photo of it?
[08:25:12] <jdh> jthornton: http://tinyurl.com/l5uuv8l
[08:26:05] <jthornton> nice
[08:26:53] <jdh> it is all better than I expected. If it had better VFD wire I'd be happier though.
[08:27:37] <jdh> 4 wire connectors to the spindle but no shield and no ground.
[08:29:55] <jdh> and one of the bolt holes for the gantry mounting stripped with no effort
[08:32:37] <jthornton> it came as a box of parts?
[08:33:23] <jdh> not really. Just table + gantry
[08:33:48] <jdh> 5 bolts on each side for the gantry.
[08:57:29] <_methods> it comes with silverware?
[08:57:40] <jdh> yes.
[08:57:48] <_methods> hehe
[09:00:00] <Einar1> What's that at the right? Titanium chopsticks?
[09:01:25] <jdh> some sort of shiny metal.
[09:01:41] <jdh> the spoon looks like it has lead on it.
[09:14:00] <tehcereal> hello can anyone help me identify this metal
[09:14:07] <tehcereal> http://imgur.com/A6U4hX9,8wA6Oqv?#1
[09:14:20] <tehcereal> i know its not quite the place to ask
[09:14:28] <archivist_herron> zinc plated
[09:14:32] <tehcereal> but u guys know this stuff :D
[09:14:47] <archivist_herron> is it magnetic
[09:14:57] <Fuchikoma> Zinc plated steel
[09:15:03] <Fuchikoma> Dip galvanized
[09:15:37] <archivist_herron> we can see the typical zinc crystal structure
[09:15:38] <tehcereal> archivist, will check it out now
[09:16:20] <tehcereal> yes it is
[09:16:55] <Loetmichel> jdh: it helbs a LOT if you bolt the y SBRs down to a flat surface btw... http://www.cyrom.org/palbum/main.php?g2_itemId=14139
[09:17:04] <tehcereal> so its zinc plated steel i guess then?
[09:17:07] <Loetmichel> stabilitiy wise
[09:17:15] <Loetmichel> http://www.cyrom.org/palbum/main.php?g2_itemId=14130
[09:17:17] <Fuchikoma> tehcereal: Almost certainly
[09:17:34] <tehcereal> thank you guys :D
[09:52:15] <jdh> Loetmichel: is there a bearing break-in procedure for these spindles?
[09:54:14] <Loetmichel> not that i know of
[09:54:28] <Loetmichel> just keep it slow unti it reaches 30°vc
[09:54:31] <Loetmichel> -v
[09:54:36] <Loetmichel> +l
[09:54:37] <jdh> a cart like that would make my space problems better.
[09:54:48] <Loetmichel> that was a computer desk
[09:54:50] <Loetmichel> ;-)
[09:55:05] <Loetmichel> just added a spare piece of kitchen counter
[09:55:48] <jdh> I need a NowForever D100 vfd manual. I found an E100 manual that is probably close enough, but...
[09:56:32] <jdh> You only have one limit/home switch for X?
[11:09:38] <zeeshan-laptop> i need to cut 3" to 6" diameter circles out of multiple stacked sheets of 3"x3" and 6"x6" respectively on a 3 axis cnc milling machine. any suggestions for work holding?
[11:10:37] <marmite_> dont know inches really , but sounds large :D but what about dubble sided tape, really strong one, and clamps?
[11:10:47] <marmite_> i usuly build clamps for what iam doing
[11:10:53] <marmite_> with the left over material
[11:11:23] <jdh> are the stacked sheets really a requirement?
[11:12:38] <archivist> you cannot finish the cut without clamping the disk
[11:12:46] <marmite_> stacking is complicated
[11:12:49] <archivist> leaves a pip
[11:13:36] <archivist> just the job for a blanking press
[11:15:17] <archivist> is the disk the product or the hole
[11:18:53] <jdh> E006 - Ambient Temperature is too high. Inverter airiness is badness.
[11:24:03] <agile_netvark> THIS IS BADNESS
[11:24:26] <ssi> ahahah
[11:36:53] <Loetmichel> *GNAH* i HATE this vmware vcenter server... every few months i have to generate a new account to get a new eval license... and EVERY time its after work hours that boss decides "i need that test server tomorrow morning!"... *waiting for the account activation emal so i can renew the ecval license... (boss is a cheapskate.. buying a $1k licens for use every few months? no waay!)
[11:37:50] <ssi> I don't use the vcenter stuff for that reason... I just figured out how to do it all from the esxi command line
[11:37:55] <ssi> it's a hassle, but it's freeeeee :D
[11:39:46] <Loetmichel> ssi: have to
[11:39:57] <Loetmichel> tis "server" is a small box to test our thin clients
[11:39:57] <ssi> whyfor?
[11:40:21] <Loetmichel> that ONLY speak the wyse/teradici protocol
[11:40:27] <ssi> I see
[11:40:42] <ssi> it's been ages since i screwed with thin clients
[11:41:15] <ssi> in 1999 i ran a project where we did thin client networks where the thin client actually ran local Xwin
[11:41:23] <ssi> was much nicer, especially over slow networks
[11:41:53] <ssi> I had to make a full linux system including xwin and netscape all fit in a 4 MB disk on chip
[11:41:59] <Loetmichel> so i had üput an i3-mini-itx board in a box, put a disk in, some ram, and a network kcadr, placed an esxi on it with 5(!) vms: 2 server 2003 for dAD and the host for Vcenter, one Vcenter appliance, and 2 test enviromets with win7 and xp
[11:42:25] <Loetmichel> that i3 is running on the last byte of ram... (8gb is way to small, but the board cant do more)
[11:43:19] <Loetmichel> its the silver box in this pic: http://www.cyrom.org/palbum/main.php?g2_itemId=14412
[12:01:36] <IchGuckLive> hi all B)
[12:57:27] <JesusAlos> hi
[12:57:30] <IchGuckLive> hi
[12:57:48] <IchGuckLive> is the guy still alive today hit very hard
[12:58:05] <IchGuckLive> saw blood al over his face
[12:58:30] <IchGuckLive> and so many girls with luck to not be hit faliled only a inch if
[13:00:50] <JesusAlos> yes they are crazy
[13:01:26] <IchGuckLive> http://www.rtve.es/noticias/san-fermin/
[13:01:39] <JesusAlos> how about hangover
[13:01:44] <JesusAlos> in germany run rivers of beer
[13:01:46] <IchGuckLive> best has been horned in the nacket ass
[13:02:00] <IchGuckLive> oh no they gote work all
[13:03:55] <IchGuckLive> JesusAlos: can you please get me the info on the moving cam if it is a wire or a drone cam
[13:04:17] <IchGuckLive> RTVE does not have a eng side
[13:04:29] <IchGuckLive> hi arturia
[13:05:18] <arturia> hi
[13:05:31] <JesusAlos> you speak about the camera?
[13:05:35] <IchGuckLive> if you got cnc related question just ask
[13:05:56] <IchGuckLive> JesusAlos: yes it sometimes stock so i thought about a drone
[13:06:09] <IchGuckLive> but today it seamed wire movement
[13:06:38] <JesusAlos> no. there are several cameras around the circuit
[13:06:59] <IchGuckLive> from curva Mercadres to estafata
[13:07:10] <JesusAlos> Drone are prohibited with 600€ of fine
[13:07:54] <IchGuckLive> oh they cauth today quatro people with phones making pictures in the bulles range
[13:08:08] <IchGuckLive> there is also a fine on them
[13:09:00] <IchGuckLive> the guy that has been taken a 2 buls full fallover is in navarra with 12 broken bones ! COOL
[13:10:45] <IchGuckLive> @ all full bullrun today http://www.rtve.es/alacarta/videos/sanfermines/muy-peligroso-tercer-encierro-sanfermines-2014-toros-victoriano-del-rio/2650876/
[13:11:54] <IchGuckLive> arturia: where are you from in the world of CNC im in germany
[13:13:23] <arturia> chicago
[13:13:32] <IchGuckLive> the windy city
[13:16:39] <JesusAlos> would be nice to do bulls in Germany
[13:17:04] <JesusAlos> like "bous al carrer"
[13:17:33] <IchGuckLive> i dont think the greens and allt the natures are at your guess
[13:18:04] <IchGuckLive> JesusAlos: more like you got hit by a truck
[13:19:12] <JesusAlos> there are other options http://www.solostocks.com/img/carro-con-cabeza-de-toro-6079752z0.jpg
[13:20:06] <IchGuckLive> the homemade with the milled bull face are more cnc style
[13:22:42] <IchGuckLive> hi kanzure
[13:25:01] <JesusAlos> I still have problems with circle issue
[13:25:32] <IchGuckLive> oh i got over your devfoam code
[13:25:50] <IchGuckLive> he uses ascie shiftings to get th best statmark
[13:25:58] <IchGuckLive> as on a lookap list
[13:25:59] <JesusAlos> I change the g-code http://pastebin.com/FqMWzWKQ
[13:26:08] <JesusAlos> and still fail
[13:26:24] <JesusAlos> I do it with cambam
[13:26:36] <IchGuckLive> G1 F300.0
[13:26:41] <IchGuckLive> no movement
[13:27:16] <JesusAlos> in machine only have XY axis
[13:27:29] <IchGuckLive> so eleminate the Z
[13:27:45] <IchGuckLive> there is a foam POOST in heeks that outputs no Z
[13:27:49] <JesusAlos> I have other gcode without Z
[13:28:11] <JesusAlos> I eliminate the Z but still fail
[13:28:30] <JesusAlos> I thinking in the resolution of Mesanet 7i77 cards
[13:28:43] <JesusAlos> is possible there are problems in low speed?
[13:29:32] <IchGuckLive> no
[13:31:04] <IchGuckLive> T0 is not for use in work
[13:31:25] <JesusAlos> I want to upload a image to show you
[13:31:39] <JesusAlos> but imagebin is bad site
[13:31:49] <JesusAlos> there are other website?
[13:32:08] <archivist> many
[13:32:20] <IchGuckLive> G64P0.5
[13:34:07] <JesusAlos> http://postimg.org/image/94xulp4pp/
[13:34:15] <JesusAlos> this is the effect
[13:34:31] <archivist> that is a mechanical problem
[13:34:38] <JesusAlos> the result is the same with several Gcodes
[13:34:48] <archivist> fix your backlash
[13:35:00] <JesusAlos> the spped converter go to 0 rpm
[13:35:19] <JesusAlos> I fix backlash too
[13:35:46] <archivist> fix it properly and remove backlash compensation from linuxcnc
[13:35:51] <JesusAlos> only happens in vertical
[13:36:02] <JesusAlos> in X axis
[13:36:03] <pcw_home> if that does not show up as ferror, its likely mechanical
[13:36:09] <IchGuckLive> i think the wire is getting behind your movement
[13:38:11] <JesusAlos> ok but I don't undestand why the spped of converter show to 0rpm in display when must be move
[13:39:16] <pcw_home> converter?
[13:39:16] <Flipp_> looking for some general tips on leadscrews; anyone here use any?
[13:40:07] <JesusAlos> i create a var speed in axis with PyVCP and can view move in linuxcnc and not in converter display
[13:40:24] <IchGuckLive> hi Flipp_
[13:40:33] <Flipp_> heya! :)
[13:40:37] <IchGuckLive> metric or inch your mashine
[13:40:43] <IchGuckLive> im in germany
[13:40:48] <archivist> Flipp_, we all use them can you ask a better question
[13:41:00] <IchGuckLive> is it a stepper
[13:41:04] <IchGuckLive> a mill
[13:41:05] <JesusAlos> converter = http://www.mecmod.com/fotos/414/Delta-VFD-EL.jpg
[13:41:24] <Flipp_> haha, sure, I just didn't want to spam the room if nobody was around that used 'em
[13:41:25] <archivist> inverter
[13:41:37] <IchGuckLive> JesusAlos: i did a g-code correction that works fine here
[13:41:38] <archivist> not converter
[13:41:54] <JesusAlos> sorry
[13:41:57] <IchGuckLive> Flipp_: best is to use Ballscrew
[13:42:16] <IchGuckLive> JesusAlos: see querry
[13:42:17] <Flipp_> I've used belts for linear motion before when building a couple 3d printers, but now (I think?) I'm going to need to use some screws for linear motion as I'm building my pick and place
[13:42:26] <pcw_home> look like a VFD ...
[13:42:39] <IchGuckLive> Flipp_: for 3D printers belt is best
[13:42:49] <zeeshan-laptop> regarding circles
[13:42:51] <zeeshan-laptop> i just made a jig
[13:43:03] <IchGuckLive> Flipp_: then you need rack pinion its to expensiv and to hevy to mont
[13:43:03] <archivist> is he using a vfd to drive an axis
[13:43:23] <pcw_home> VFDs do not make good servo drives typically
[13:43:25] <archivist> because they have deadbands
[13:43:34] <Flipp_> IchGuckLive: ? why not use leadscrews or ballscrews?
[13:43:51] <pcw_home> yes rotor flux goes away at reversals
[13:44:01] <IchGuckLive> cause you dont need that fine movement
[13:44:13] <pcw_home> and takes time to build up again
[13:44:16] <Flipp_> IchGuckLive: for a smd pick and place machine?
[13:44:17] <IchGuckLive> Flipp_: most uses 0.254mm
[13:44:28] <IchGuckLive> oh no for that
[13:44:39] <IchGuckLive> you need to go as best as you can
[13:44:42] <IchGuckLive> so Ballscrew
[13:44:48] <pcw_home> a good vector drive should help but its still not a servo drive
[13:44:51] <Flipp_> ah, okay, that's what I figured :D
[13:44:54] <archivist> Flipp_, ballscrew for minimum backlash
[13:45:49] <Flipp_> okay. I've seen leadscrews with anti-backlash nuts. how do those compare to ballscrews (which I assume use recirculating balls in the carriages?)
[13:46:08] <archivist> depends on quality
[13:46:49] <tjtr33> i'm looking for precise ball screw with 10pitch. anyone know of c3 grade for such? only finding c5 (nsk thk hiwin... )
[13:46:56] <archivist> often the cheap screws have inaccuracies in the linear plane that you wont want
[13:47:55] <archivist> Flipp_, but you can map the errors and correct
[13:47:56] <rob_h> We got a C3 afew months back for lathe X screw
[13:48:14] <tjtr33> rob_h, hi pitch?
[13:48:19] <rob_h> 5mm
[13:48:30] <rob_h> but can have 5,10,15,20 etc the normal stock ones
[13:48:32] <kfoltman_> Loetmichel: I've tested the thing with my new 24V power supply
[13:48:51] <kfoltman_> Loetmichel: 2000 mm/min on X, 1500 on Y (due to stupid gearing)
[13:48:53] <rob_h> we had a screw with preloaded single nut, was about 600mm long.. 700 i think off top my head
[13:49:10] <tjtr33> rob_h, got link? max pitch c3 for me was 5pitch
[13:49:15] <rob_h> then we just machined the ends
[13:49:17] <IchGuckLive> Flipp_: the standard will fit your need
[13:49:33] <IchGuckLive> Flipp_: what size is the movement
[13:50:20] <rob_h> give us a sec
[13:50:36] <Flipp_> IchGuckLive: for x/y, probably no more than 40-60cm or so. for Z, probably around 5-10 CM
[13:50:56] <tjtr33> rob_h, :) http://www.youtube.com/watch?v=8-Qwxu_zo8Y
[13:50:58] <Flipp_> archivist: hmm... ballscrews sound way more precise, but are they really an order of magnitude more expensive? I'm seeing $500+ for THK O.o
[13:51:24] <archivist> THK is one of the leading makers
[13:51:38] <IchGuckLive> Flipp_: ok it is best to go servo for best speed if hobbyist it is good to stay steppers with FPGA insted of parport
[13:51:47] <archivist> that would be a ground one, you can get cheap rolled ones
[13:52:17] <tjtr33> Flipp_, beware of used ebay stuff with bearings ( crunchy frog syndrome , maybe rebuildable tho )
[13:52:28] <Loetmichel> kfoltman_: and? metter when milling that PS stuff?
[13:52:59] <rob_h> tjtr33, http://www.jena-tec.co.uk/ballscrews.php
[13:53:06] <archivist> I have a cheap fleabay one ballscrew, it has a little backlash
[13:53:09] <tjtr33> rob_h, thx, will look
[13:53:30] <kfoltman_> Loetmichel: didn't try yet, will need to do some more upgrades before I try again :)
[13:53:54] <rob_h> we gave up with hiwin, nsk etc etc no stock. long wait times also adermant they machined the ends to our drawings
[13:53:55] <Flipp_> archivist: are there any good lists of suppliers? I know of mcmaster, amazon, alibaba and ebay, but aside from mcmaster most of the others probably sell cheaply made stuff
[13:54:55] <Flipp_> IchGuckLive: Ya. I'm designing my own circuitry for the controller board (USB + stepper drivers), likely with parallel port emulation if I use LinuxCNC for control
[13:55:16] <Flipp_> tjtr33: yup. I'm learning pretty quick the "cost" of cheap stuff ;)
[13:55:18] <tjtr33> rob_h, didja see the vid link above ^^^ KSS makes some hi speed stuff, too small for normal machines tho
[13:55:41] <tjtr33> Flipp_, welcome to my garage
[13:55:46] <rob_h> tjtr33, just found our quote it was a 40mm screw OD, 5 pitch, 420 long
[13:55:52] <IchGuckLive> Flipp_: go for ethernet
[13:55:52] <rob_h> 450 +vat and del
[13:55:57] <archivist> Flipp_, there are a number of suppliers to home builders using the lower cost asian sources like http://www.worldofcnc.com/collections/ballscrews
[13:56:04] <kfoltman_> rob_h: 40mm!
[13:56:25] <IchGuckLive> ok im off bye
[13:56:27] <rob_h> yea we looked the hiwin stand at there new range of rails and stuff
[13:56:30] <archivist> good solid meaty machine nourishment
[13:56:42] <tjtr33> rob_h, woot! i can only pray 1/2 length is 1/2 price ( i wish i wish )
[13:56:43] <Flipp_> archivist: AWESOME. thanks, I love collecting supplier lists, and it looks like that one is a goldmine
[13:57:02] <rob_h> u find they price it per 100mm
[13:57:30] <rob_h> Accuracy Grade IT3 (12μm/300mm)
[13:57:30] <kfoltman_> Loetmichel: actually, I brought some ABS sheet too today, will have to try with that
[13:57:44] <Flipp_> IchGuckLive: I might :) I've got a UDoo laying around looking for something to do, and it may be the controller board I build on. sad part is it's 3.3v control logic though :(
[13:57:59] <rob_h> that included a single preloaded (pre solection of balls) nut also, was blank so had to drill it
[13:58:29] <Flipp_> archivist: at the risk of being annoying, do you know any other go-to supplier sites offhand?
[13:58:40] <tjtr33> rob_h, drill flange or what?
[13:58:55] <archivist> I would have to google...Zapp automation
[13:59:20] <archivist> arc euro trade (local to me)
[13:59:21] <rob_h> yea we asked for blank screw and nut so we could machine it our selfs to match... other wise was 1 week wait it hink
[13:59:39] <tjtr33> rob_h, thx, off studying what you linked
[13:59:53] <rob_h> plus its on old Hardinge so all imperial sizes
[14:00:13] <rob_h> nearles to say we changed the bearings to metric while at it, nearly as much as the screw
[14:00:23] <rob_h> quad set each end
[14:00:26] <tjtr33> where did those yanks get that goofy imperial stuff ? :)
[14:00:47] <archivist> I did get a huge ballscrew for a knee off ebay for £50
[14:02:35] <rob_h> tjtr33, screw is out of this on X , https://www.youtube.com/watch?v=r7V57_7H9zw
[14:05:44] <tjtr33> hehe "old Control was aFanuc 6T" old? :)
[14:06:28] <tjtr33> i wrote tui macros on system 6's
[14:06:28] <rob_h> mind u i saw a machine with fanuc 3 other day
[14:06:49] <rob_h> that should be in a musium
[14:06:56] <kfoltman_> Loetmichel: tried a 1mm ABS sheet now, f500 but gcode sent by hand in UGCS, made a very nice rectangle with slight burr
[14:07:49] <kfoltman_> Loetmichel: milling PS = it turns into gummy goo; milling ABS = it turns into powder
[14:09:52] <kfoltman_> archivist: is marchant dice stuff any better than ordinary the Chinese cheapola?
[14:10:19] <JesusAlos> bye
[14:10:21] <JesusAlos> thank
[14:10:25] <archivist> kfoltman_, I think it is normal chinese stuff
[14:10:45] <archivist> I have never used them
[14:10:57] <kfoltman_> archivist: so you reckon I'm better off buying at source? or do they do any extra quality control / vendor verification?
[14:11:11] <kfoltman_> ahh ok
[14:11:27] <archivist> well some suppliers to do some verification some do not
[14:12:17] <archivist> arc euro can do, they also publish docs so you can fiddle your new machine to make it better
[14:13:34] <Tom_itx> udevd-event [1291] run program: '/sbin/modprobe' abnormal exit
[14:13:44] <Tom_itx> trying to run 8.xx live cd
[14:26:36] <kfoltman_> Loetmichel: woohoo 1000mm/min worked with polystyrene :)
[14:44:03] <kfoltman_> Loetmichel: http://i.imgur.com/wgPQJ95.jpg
[15:05:51] <tehcereal> can someone tell me how important are the endstops.
[15:06:02] <tehcereal> so we can know the 0 0
[15:06:18] <tehcereal> or for a safety issue
[15:06:45] <Fuchikoma> Well you'll nede some means for the controller to know where the machine is physically
[15:06:50] <chally_> do you guys have any idea if the Mesa 7i52S can read a qudrature signal from an accurite linear scale like this one: http://www.acu-rite.com/pdf/SENC150_DataSheet_Nov09.pdf and an HEDS encoder like this one:file:///C:/Users/chally/Downloads/AV02-1867EN_DS_HEDS-9x00_2014-03-17%20(1).pdf ?
[15:07:31] <tehcereal> Fuchikoma, cant we just jog the machine close to the end and set it as 0 0 :D im talking about hobby cnc not the industrial
[15:08:20] <Fuchikoma> Okay, so you'll have to be careful to do that properly and not to accidentally tell the machine a comamnd that will take it outside its bounds
[15:08:30] <Fuchikoma> Basically, YOU are the endstops.
[15:08:56] <tehcereal> im just asking why do we usually use only one endstop per axis
[15:09:16] <tehcereal> if its for safety shouldnt we use two
[15:09:19] <tehcereal> :D
[15:09:32] <Fuchikoma> Generally you only need one hard reference, and the machine should know how far each axis can move
[15:09:33] <DaViruz> there is two per axis usually, but they are connected together
[15:10:05] <DaViruz> you can connect all the limit switches together for all axis if you wish too.
[15:10:21] <Fuchikoma> Indeed. The real danger is if something slips and suddenly the machine isn't where the controller thinks it is, in which case endstops on both ends becomes a safety feature
[15:12:13] <tehcereal> one more question :D do every hobbyist manual home the z axis every time?
[15:12:23] <tehcereal> i suppose the do
[15:12:26] <tehcereal> just making sure
[15:12:50] * Fuchikoma shrugs - no reason not to?
[15:16:36] <anarchos> i am installing my limit/home switches on different pins
[15:17:00] <anarchos> well x+/- on one, y+/- on one and z on one
[15:17:19] <anarchos> in theory they can calibrate at the same time, versus one at a time if all on the same input
[15:19:55] <PCW> chally_: as long as the scales are quadrature (and have TTL or differential interfaces) they can be used with the 7I52S
[15:27:49] <ssi> I'm going to start ordering stuff to put together an inexpensive laser cutter
[15:28:00] <ssi> but I don't really know much about lasers :)
[15:41:49] <SpeedEvil> ssi: I recommend a phased plasma one in the 40W range.
[15:41:59] <ssi> phased plasma?
[15:42:02] <ssi> you're over my head already :)
[15:42:14] <ssi> my plan was to buy a cheap 40W co2 sealed tube to get started
[15:42:23] <ssi> and later perhaps upgrade to a decent quality maybe 80W tube
[15:42:30] <SpeedEvil> https://www.youtube.com/watch?v=BIPCn-aYMoM
[15:42:49] <ssi> lol
[15:43:31] <ssi> the longslide in that scene is an AMT hardballer
[15:43:35] <ssi> I had one... they're not real common :P
[15:45:06] <SpeedEvil> There is the right way to do a laser cutter - which involves complex optics, and annoying alignment.
[15:45:31] <ssi> what's the wrong way? :P
[15:45:36] <SpeedEvil> And there is the stupid easy way with a vertical laser, and a x/y table which moves under it
[15:45:55] <ssi> yea I'm gonna do the former :P
[15:46:49] * SpeedEvil realises he has never seen terminator 3.
[15:47:05] * SpeedEvil kinda wants to make a TEA CO2 laser
[15:47:15] <ssi> Iced or Hot?
[15:47:33] <SpeedEvil> ~1kw
[15:47:46] <ssi> so hot then
[15:47:50] <ssi> in a 1000W microwave
[15:48:50] <cpresser> the stupid way sounds really smart
[15:49:19] <SpeedEvil> It's not good for 'proper' machines that you might want to ship
[15:49:40] <ssi> plus it's a lot easier to accelerate a focus head than your whole table and workpiece
[15:49:47] <DaViruz> it's not good if you want to accellerate fast
[15:49:50] <SpeedEvil> True
[15:49:59] <cpresser> true. accelleration is an issue :)
[15:50:09] <SpeedEvil> Cheap lasers never seem to go very fast anyway
[16:16:33] <Deejay> gn8
[16:36:31] <alexchally> I think I am going to order the 5i23, 7i52s and 7i37TA today \o/
[16:58:50] <jdh> why 5i23 in particular?
[17:13:19] <alexchally> jdh, why not?
[17:13:44] <alexchally> jdh, literally, I don't know. it seems to be the biz people are using, and the PCs I have easily available to me have PCI
[17:14:04] <alexchally> is there a more better solution?
[17:53:09] <tehcereal> what cam software is popular for hobbyist
[17:53:20] <tehcereal> i read about bamcam and mashcam
[17:53:46] <tehcereal> meshcam*
[17:54:20] <tehcereal> any good free solutions
[17:54:22] <tehcereal> ?
[18:08:16] <kfoltman_> tehcereal: not that I know of
[18:08:53] <kfoltman_> I'm using cambam (evaluation), don't really like it, but it does the job
[18:14:32] <Tom_itx> alexchally, list your needs and which boards fill them
[18:14:45] <Tom_itx> the most reasonablly...
[18:19:35] <alexchally> Tom_itx, I am converting a Prototrak EMX mill. I have 2 servos with differential HEDS 9000 encoders, that take a pulse width modulated signal instead of the standard analog voltage
[18:20:00] <alexchally> the computer it is all running on is an unknown right now, but it will be a PCI interface
[18:20:20] <alexchally> I also have a Z axis with glass scale, but no servo (yet)
[18:20:29] <alexchally> there are... inifinity choices it seems
[18:20:37] <alexchally> so I found a couple build logs that looked nice, and just copied :D
[18:21:40] <Tom_itx> the 5i25 is a fairly new board you might have a look at
[18:21:50] <Tom_itx> don't know much about it since i don't have one
[19:58:00] <XXCoder> heys
[20:03:42] <anarchos> in my system bios, i have the option to have the parallel port as AT, PS/2, EPP, ECP no DMA, ECP DMA1 or ECP DMA3
[20:03:50] <anarchos> what's gonna be the best option?
[20:10:39] <jdh> anarchos: for what use?
[20:11:30] <anarchos> to interfact with my breakoutboard/drivers
[20:15:17] <jdh> for plain old steppers, it probably doesn't make much difference. My p-port stepper system is EPP
[20:19:55] <somenewguy> does linuxcnc handle rotated axis well if they are not just rotated in the XY plane?
[20:20:55] <somenewguy> if I tilt my head on my 3axis mill, and rotate around the Y axis so that the coridnates are referenced fof the Z axis, will a move in the new XY plane cause all three axis to move properly?
[22:03:54] <skunkworks_> somenewguy: you would have to do some sort of kins