#linuxcnc | Logs for 2012-11-26

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[00:31:46] <Aero-Tec> is there any way to display the tool that is loaded?
[00:32:20] <Aero-Tec> I have looked in the axis GUI and see no way to show the active or loaded tool
[00:32:54] <Aero-Tec> just wondering it such a thing exists or if I am missing something
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[00:37:58] <Nick001-Shop> bottom of the screen - on a lathe anyway
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[00:42:09] <Aero-Tec> really I must have missed that, and I am running lathe, maybe there is some setting to get it to display
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[00:42:55] <Aero-Tec> I found linuxcnc status display also shows it and gets updated
[00:43:25] <Aero-Tec> will look closer at the bottom of the screen
[00:45:23] <Aero-Tec> wow, not sure how I missed it but your right
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[00:54:18] <Nick001> Been running the hardinge for a while and that's where I check tool # and offset values
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[01:40:14] <KimK> cradek: Thanks, your advice was very helpful, as always. I didn't stick with the install script, I found a -sim deb mentioned on the wiki, and that installed and worked. But it gave a similar error during software update searches, it turned out I had to change the software sources from linuxcnc2.5 to linuxcnc2.5-sim, and then it was happy.
[01:40:22] <KimK> I'm not sure if that was an error both times (installs) or just the first time or what. I'll try to repeat the error for you later on if I have time, we'll see. But it was just a vanilla Ubuntu 10.04 install (not our LinuxCNC version), then install LinuxCNC sim-only by the two above methods (script was first, then deb). That should make it show up, if it's going to.
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[01:42:37] <KimK> I'll check back later
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[01:45:29] <KimK> BTW, the latency test on that particular PC (a fairly recent model) is awful, so good thing it's sim-only, it's showing around 2,000,000-3,000,000 ns!
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[02:07:35] <roh> KimK: i have a similar machine.. not that new, but also >1ms jitter on a 1ms thread
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[02:07:52] <roh> will replace it with a good old asus a7v board these days and try again
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[03:00:08] <Jymmm> SWPadnos: VA Police can detect illegal radar detectors http://www.youtube.com/watch?v=s4vC4aoHJf4&feature=related
[03:00:32] <Jymmm> http://www.youtube.com/watch?v=nDYcfycWVOk&feature=endscreen&NR=1
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[03:24:46] <Aero-Tec> when one is setting up tool table using touch off tool table
[03:25:46] <Aero-Tec> is it the norm to have to do it 2 times for the DRO to indicate the right reading?
[03:26:45] <Aero-Tec> I have had to redo the tool table touch off to get things reading properly
[03:26:56] <Aero-Tec> not sure if I am messing up or what
[03:28:02] <Aero-Tec> even reloaded the tool table to see if that helped
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[04:06:51] <Aero-Tec> my lathe spindle speed is acting up again
[04:07:03] <Aero-Tec> not sure why
[04:07:11] <Aero-Tec> looking into it
[04:07:27] <Aero-Tec> it looks great on the scope
[04:07:50] <Aero-Tec> but keeps acting up
[04:08:01] <Aero-Tec> the speed bounces
[04:08:18] <Aero-Tec> even if the spindle is standing still
[04:08:56] <Aero-Tec> it will bounce, but some times it is good
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[04:09:22] <Aero-Tec> not sure whats up with it
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[04:32:42] <Aero-Tec> looks like it is the Pport cable at fault, the connection at the CNC
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[06:27:05] <Loetmichel> mornin'
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[07:33:40] <Aero-Tec> morning
[07:33:48] <Aero-Tec> well night here
[07:34:06] <Aero-Tec> anyone here good with gcode?
[07:34:21] <Aero-Tec> I am having a problem
[07:35:11] <Aero-Tec> when running the gcode, everything seams fine till I do a tool change
[07:35:31] <Aero-Tec> then I am way off where I should be
[07:35:51] <Aero-Tec> yet when not running code
[07:36:23] <Aero-Tec> when testing where zero is things are fine
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[07:38:10] <Aero-Tec> does one need to do a g43 for the offsets to work?
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[08:16:17] <DJ9DJ> moin
[08:21:37] <Aero-Tec> morn
[08:21:57] <toastydeath> Aero-Tec, are you running emc
[08:22:13] <Aero-Tec> so does anyone know the best pport setting in the bios?
[08:22:14] <toastydeath> i can't help you in specifics, but in general, you have to call g43 Hxx Dxx
[08:22:17] <Aero-Tec> trying to
[08:22:36] <Aero-Tec> got the tool offset working
[08:22:56] <Aero-Tec> still having problem with the spindle speed
[08:23:03] <Aero-Tec> not sure why
[08:23:13] <Aero-Tec> thought I had it fixed a few times
[08:24:07] <Aero-Tec> H is tool number but what is D?
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[08:26:28] <Aero-Tec> I am using pin 11 as spindle index
[08:26:54] <Aero-Tec> not sure if that is a good choice, looks like it is a inverted input
[08:27:04] <Aero-Tec> not sure if that should matter any
[08:27:44] <toastydeath> d is tool radius/diameter
[08:27:53] <toastydeath> which is also tool number
[08:28:07] <toastydeath> i'm not an emc guy, i am a machinist in general
[08:28:27] <toastydeath> if you call H01, also call D01
[08:28:32] <toastydeath> that way cutter comp offset works
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[08:39:45] <Aero-Tec> cool
[08:45:24] <Jymmm> Tom_itx: Don't ever divide by zero on AVR atmega32! http://www.youtube.com/watch?v=mZ7pUADoo58&feature=fvwrel
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[09:11:15] <Vq> Jymmm: What?!?
[09:11:37] <Jymmm> ¿
[09:16:42] <DJ9DJ> only chuck norris can divide by 0
[09:16:52] <Jymmm> lol
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[09:23:12] <Aero-Tec> not sure 100% yet
[09:24:09] <Aero-Tec> but it looks like putting the keyboard on the lathe bed is somehow messing with my spindle speed
[09:24:14] <Aero-Tec> go fig
[09:24:42] <Jymmm> torroids to the rescue!
[09:24:47] <Aero-Tec> the keyboard has a steel bottom
[09:27:29] <Aero-Tec> after the lathe bed being my favorite place to put keyboard for years the paint is getting scratched some
[09:28:30] <Aero-Tec> I was messing with the port cable and unplugged the board
[09:28:44] <Aero-Tec> spindle speed was rock solid
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[09:29:16] <Aero-Tec> found board unplugged, plugged it in and spindle not good
[09:29:39] <Aero-Tec> lifted board good, set it down, not good
[09:30:16] <Aero-Tec> after a few time like that I thought this is nuts but it look like I have the answer
[09:30:34] <Aero-Tec> would have never guessed
[09:31:24] <Aero-Tec> still not 100% sold, I have thought I had it fix to many times, time will tell
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[11:15:42] <Aero-Tec> not liking EMC so far
[11:15:57] <Aero-Tec> frustrated
[11:16:18] <Aero-Tec> I am working on tool table for lathe
[11:16:58] <Aero-Tec> I zero t1
[11:17:10] <Aero-Tec> g54 work offset
[11:18:31] <Aero-Tec> now I load a new tool, that touch off should be tool table, right?
[11:19:20] <Aero-Tec> and the DRO should now say the location of the tool
[11:19:24] <Aero-Tec> right?
[11:21:25] <Aero-Tec> toastydeath: are you still around?
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[11:24:09] <Aero-Tec> is any of the EMC guys here?
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[11:29:34] <jthornton> all the EMC guys left only LinuxCNC guys now
[11:30:17] <jthornton> how are you "loading a new tool"
[11:35:54] <Aero-Tec> t1 m6 g43
[11:36:04] <Aero-Tec> found problem I think
[11:36:16] <jthornton> ok
[11:36:22] <Aero-Tec> touch off fixture was active
[11:36:35] <Aero-Tec> should have been touch off work
[11:36:42] <Aero-Tec> that is my guess
[11:36:42] <jthornton> I made some pyvcp buttons to touch off to material
[11:37:02] <jthornton> makes it a one click operation to touch off Z to the material
[11:37:06] <Aero-Tec> so what is the right way to set up tool table?
[11:37:33] <Aero-Tec> I use t1 for the zero for z and x
[11:38:04] <Aero-Tec> so touch off fixture for setting t1?
[11:38:06] <jthornton> well I set mine up by touching off to a fixture and usually use T1 to touch off to the material as it is the correct shape to do so
[11:38:24] <Aero-Tec> and touch off g54
[11:38:31] <jthornton> I touch off all tools to a fixture, in my case the face of the chuck
[11:38:50] <jthornton> then touch off g54 with t1 loaded
[11:38:54] <jthornton> to the material
[11:39:19] <jthornton> make any sense?
[11:39:45] <Aero-Tec> say one wants to set t1 as the zero, and ref all tool offsets from that
[11:40:00] <Aero-Tec> it would if I ran one chuck
[11:40:55] <jthornton> http://www.gnipsel.com/linuxcnc/g-code/gen05.html
[11:41:47] <jthornton> actually I use the face of my spindle as it is a chucker lathe and on my mill I use the top of the vise
[11:44:24] <Aero-Tec> I have quick change chucks, the colet type
[11:44:48] <Aero-Tec> 3 jaw, 6 jaw and a second 3 jaw
[11:45:39] <Aero-Tec> 2 of them have the 2 piece jaws
[11:46:03] <Aero-Tec> not to mention the 4 jaw as will
[11:46:39] <Aero-Tec> I think I know what I am doing wrong
[11:46:55] <jthornton> cool
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[12:08:56] <Aero-Tec> thought I had it, now not sure
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[13:27:02] <r00t4rd3d> http://imgur.com/a/QrDLw
[13:27:13] <r00t4rd3d> Pi mini mame
[13:27:58] <r00t4rd3d> http://spritesmods.com/?art=rpi_arcade
[13:28:01] <r00t4rd3d> plans and stuff
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[16:25:29] <Jymmm> ve7it: Hopefully... By Thusday evening I'll have HF!!!
[16:25:43] <ve7it> yea
[16:26:19] <Jymmm> ve7it: cross fingers, they guy has flaked (justified) on me a few times so far.
[16:26:43] <ve7it> cyber monday here is a bust... wanting a new depth sounder for the boat and nada for sale
[16:27:04] <Jymmm> heh
[16:27:48] <Jymmm> ve7it: I got my Extra in October if I didn't say.
[16:28:25] <ve7it> nice... not sure of US classes... what are they now?
[16:28:54] <Jymmm> Tech General, Extra. Used to be Novice, Tech, General, Advanced, Extra.
[16:29:14] <Tom_itx> that's quite a title
[16:29:32] <Jymmm> Novice and Advanced are just grandfathered
[16:29:50] * Jymmm lol @ Tom_itx
[16:29:59] <Tom_itx> :)
[16:30:08] <Tom_itx> ham?
[16:30:11] <Jymmm> yeah
[16:30:39] <Tom_itx> do you still gotta know the dot dit dit dot stuff?
[16:30:45] <Jymmm> No
[16:30:49] <Jymmm> Not for years.
[16:31:11] <Jymmm> It's still popular though, just not a requirement for any license class.
[16:31:11] <Tom_itx> but do you know it?
[16:31:33] <ve7it> they messed with the Canadian designations a few years back..... used to be amateur(10wpm) and advanced(15wpm) now there is basic, basic+, advanced.. no code now
[16:31:41] <Jymmm> some, need to learn more. Especially after thursday (hopefully)
[16:32:14] <Jymmm> ve7it: Working on my fishtenna this week
[16:32:56] <Jymmm> ve7it: FT-890AT
[16:33:18] <ve7it> can one get 23' fishing rod blanks? I would like to make a rotatable dipole with 2 and an AH-4 tuner
[16:33:31] <Jymmm> ve7it: 32ft actually
[16:33:56] <Jymmm> ve7it: I got two 16.5ft shipped for $27
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[16:34:37] <ve7it> a 32'*2 dipole would be a big unit
[16:35:15] <cncbasher> wish i had the space
[16:36:42] <Jymmm> ve7it: --- 31ft pole http://www.jackite.com/product_info.php?cPath=41_44&products_id=132&osCsid=7599def16249698166b1b6147e5f439a
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[16:37:35] <Jymmm> ve7it: 16ft $11 http://www.cabelas.com/spinning-rods-cabelas-classic-crappie-pole-1.shtml
[16:39:05] <Jymmm> ve7it: I'm plagerizing the one shown here in the red pipe http://i46.tinypic.com/2rc7cb4.jpg
[16:39:16] <ve7it> why would anyone buy a crappie pole :}
[16:39:52] <Jymmm> ve7it: Because my arms aren't that long.
[16:40:52] <ve7it> nice kit.... I recognize the ceramic tuning coil..... from a ww2 antenna tuner
[16:41:01] <ve7it> I have one in the garage
[16:41:14] <Jymmm> ve7it: actually a defun radio tuner
[16:41:32] <Jymmm> well, that's where he got it from that is
[16:42:24] <Jymmm> ve7it: I picked up some ABS pipe, I still need to figure out how to layout a "thread" pattern on it using the laser.
[16:43:19] <Jymmm> ve7it: Since I dont have a rotary axis on the laser, I can't do a full 360, but I figured I could do a //////// pattern on four sides for the wire to sit into
[16:43:54] <awallin> some company in eastern Finland went bankrupt and they are selling lots of machines: http://www.go-dove.com/en/event-17167/UM-Koneistus-Oy-Finland-Engineering-Facilities-%28In-Bankruptcy%29/lots if I only had the space for those :) ...
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[16:44:37] <Jymmm> ve7it: that kit is what he uses aboard ship.
[16:46:15] <Jymmm> cncbasher: space for what?
[16:46:34] <ve7it> http://www.go-dove.com/en/event-17167/lot-14/Cincinnati-Milacron-TT-15-1500-6-Horizontal-CNC-Machining-Centre wow, big machine with 43000hours
[16:47:47] <awallin> just need to fetch that 10ton machine home... :)
[16:49:15] <ve7it> a challenge for the postal service
[16:49:32] <cncbasher> jymmm: a decent rotary hf dipole
[16:50:19] <Jymmm> cncbasher: vertical rotary dipole
[16:51:07] <cncbasher> max dipole i can get up is around 26'
[16:51:48] <Jymmm> what do you, a tower?
[16:51:53] <cncbasher> these people who can manage 6 and 8 ele hf
[16:52:06] <Jymmm> bah
[16:52:28] <Jymmm> no challenge in that =)
[16:52:50] <cncbasher> have a 60' strumech tower but the hf swings over next doors roof
[16:53:21] <Jymmm> and?
[16:54:28] <cncbasher> and thats just a 2 element , just need a to find a farm somewhere rather than in town
[16:59:17] <JT-Shop> cncbasher: I forgot to start my mail program back up after a cold boot last week LOL
[17:00:07] <cncbasher> JT-Shop: u must have felt isolated with no mails .. .haha
[17:00:57] <JT-Shop> that was just on the one computer that I do the docs on so very little traffic anyway
[17:02:04] <skunkworks> wow - vista has a good day or more of updates - starting with sp1... Yeck
[17:02:36] <skunkworks> and that is downloading the network install of sp2
[17:03:06] <cncbasher> catch you next week when the updates have finished ..
[17:03:51] <skunkworks> right
[17:06:28] <Tom_itx> if it still boots
[17:06:44] <skunkworks> so far so good.............
[17:07:52] <skunkworks> get to see if I can activate it... the vista home premium code on the back of the laptop didn't work with the windows home premium cd that I had... go figure
[17:08:07] * skunkworks hugs linux
[17:08:25] <cradek> doctor doctor! it hurts when I do this!
[17:08:44] <skunkworks> if I thought they would use ubuntu....
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[17:49:09] <IchGuckLive> hi all
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[17:53:07] <IchGuckLive> how woudt you connect a Rs232 PC cable to the servo drive connector ? ->http://foengarage.de/rs232-omron.jpg
[17:53:29] <IchGuckLive> thewre are lots of TXD and RXD but no other DTR ...
[17:53:46] <IchGuckLive> is there only RXD TXD and GND needed
[17:54:51] <awallin> yes 3 wires is the minimal one
[17:55:04] <awallin> no handshaking or hardware flow-control
[17:55:33] <awallin> that picture seems to show differential signals
[17:57:02] <IchGuckLive> do you thik there is a ic in the cable
[17:57:19] <awallin> see the first image here http://www.ethernut.de/en/documents/rs232primer.html that's for devices with a "normal" 9-pin rs232 connector
[17:58:20] <awallin> hm, are you sure they describe that as rs232 and not 422 or something
[17:58:47] <IchGuckLive> the setup is com1 no more
[17:59:25] <awallin> well try a cable that looks like the first pic in my link..
[17:59:37] <awallin> do you have a program for sending stuff to the drive?
[17:59:53] <IchGuckLive> yes xtraware
[18:00:01] <awallin> all the -TX etc. (with a bar) can be connected to GND I guess..
[18:00:59] <IchGuckLive> the 3wire strait cable awallin
[18:01:37] <awallin> yes, but you need to ground /TX /RX also on the servodrive side I think
[18:01:44] <IchGuckLive> that is what i woudt do but on what pin of the 14pin connector
[18:02:21] <IchGuckLive> the pin layout of the 14pin servo drive connector showes npo RX TX
[18:02:59] <awallin> PC(2) to drive(RXD 3 and 10)
[18:03:22] <awallin> and PC(3) to drive(TXD 1 and 8)
[18:03:41] <awallin> but that is just a guess... you never know with these things untli you try..
[18:04:24] <IchGuckLive> ok i did a mail to omron as they provided today also a setup for the Drive and the servo
[18:04:36] <IchGuckLive> maybe i get a layout of the cable
[18:05:45] <IchGuckLive> bevor i pull the servo on this time i will download trhe file to the Driver maybe then i get movement
[18:15:39] <IchGuckLive> soldering on this miniconnectors is quite a hell of work
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[18:25:22] <tom3p> mevon_: i got the EMCarduino code but dont know what mods you've made to the Linuxcnc code body.
[18:25:29] <tom3p> I cant imagine how it could respect realtime ( be in position on time/prevent dwells/achieve smooth motion).
[18:25:30] <tom3p> Do you halt the system from the usb or expect Linuxcnc to halt when ferror is too great?
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[18:31:02] <skunkworks> just seems like a bad idea
[18:37:39] <tom3p> well, fine for tool changers/proportional valves/chip removal conveyers/ lotsa non-time critical operations
[18:37:40] <tom3p> ( 90% of what you see on a cnc mill/lathe doesnt need realtime, but 10% has to have it )
[18:41:15] <mrsun> http://www.youtube.com/watch?feature=player_embedded&v=IULLSmhsB6M heh =) cool =)
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[18:51:34] <IchGuckLive> mrsun: the monitors are qwuite Dark O.O
[18:52:46] <mrsun> IchGuckLive, huh ?
[18:53:29] <IchGuckLive> the blind man in the vid
[18:54:04] <mrsun> yeah but i dont get the "the monitors are quite dark" ?
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[19:30:13] <JT-Shop> how do you make refractory cement?
[19:32:47] <cncbasher> www.backyardmetalcasting.com
[19:33:07] <JT-Shop> LOL I was reading that site
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[19:33:50] <cncbasher> i usualy buy refactory
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[19:34:20] <cncbasher> and get the stuff rated for 1700 deg
[19:34:45] <JT-Shop> I'm looking at casting some aluminum for fun
[19:34:49] <cncbasher> i found the homemade stuff ok for a while , but didnt last long
[19:35:25] <cncbasher> it's great fun
[19:35:58] <JT-Shop> what fuel do you use?
[19:36:03] <cncbasher> i bought a kiln too and use that for aluminium
[19:36:24] <JT-Shop> I have a huge kiln that's never been used for anything
[19:36:31] <cncbasher> gas and air blower ,,, but oil is good too
[19:37:13] <cncbasher> some kilns will go higher and will melt aluminium fine
[19:38:34] <cncbasher> i have fancied making an oil burner , but not got round to it as yet
[19:39:12] <JT-Shop> this is the kiln http://imagebin.org/237245
[19:39:27] <cncbasher> nabertherm ?
[19:39:45] <JT-Shop> it goes to 2350F
[19:39:58] <cncbasher> that should do aluminium ok
[19:40:20] <JT-Shop> Olympic Electric Kiln Co.
[19:40:57] <JT-Shop> I'm thinking of taking the top and bottom sections out and just use the center section
[19:40:58] <cncbasher> if anyting it may be one section too high
[19:41:28] <cncbasher> yea i thought it looked as if it split in layers
[19:41:50] <JT-Shop> it's 27" inside height
[19:41:56] <tom3p> the unused section becomes backyard pizza parlor
[19:42:00] <cncbasher> you'll probably need 2 sets of elements to get the temp up
[19:43:17] <cncbasher> i use the kiln for small aluminium jobs , and the furnace for larger and also cast iron
[19:43:37] <cncbasher> i'll send you some stuff by email
[19:43:44] <JT-Shop> ok thanks
[19:44:07] <cncbasher> need to dig it out first
[19:44:44] <cncbasher> then i'll send you some download links
[19:44:56] <JT-Shop> thankw
[19:44:58] <JT-Shop> s
[19:45:42] <mrsun> JT-Shop, for alu casting you can use just about any refractory .. go to a place that makes chimneys or something :P
[19:45:50] <mrsun> or what they are called =)
[19:45:59] <mrsun> just get something rated like 1100 degree C or someting
[19:46:07] <JT-Shop> the red flue things
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[19:46:14] <mrsun> mix it with vermaculite and ram it into shape =)
[19:47:53] <Loetmichel> mrsun: bah, doent that SMELL awful when burning from the molten alu?
[19:48:03] <Loetmichel> doesent
[19:48:09] <mrsun> what smells ?
[19:48:17] <Loetmichel> vermaculite
[19:48:36] <mrsun> its for getting insulating properties in the refractory
[19:48:40] <mrsun> its not supposed to be in the alu :P
[19:49:39] <Loetmichel> ah, sorry.... read that as vegemite
[19:49:41] <Loetmichel> ;-)
[19:49:59] <mrsun> http://en.wikipedia.org/wiki/Vermiculite
[19:50:17] <Loetmichel> and thought you wanted to "glue" the sand for casting
[19:50:41] <Loetmichel> mrsun: yeas, read that the second time... ;-)
[19:51:48] <mrsun> refractory isnt realy rocket science until you need to melt steel :P
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[19:55:23] <mrsun> i think the lowest grade of furnace cement i can find here is for 1200 or 1300 degrees C =)
[19:55:47] <mrsun> JT-Shop, furnace cement was the word i was looking for :P
[19:55:51] <mrsun> i think ;P
[19:55:56] <mrsun> or fireclay
[19:55:59] <mrsun> works also
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[19:56:50] <ds3> you do have a battery on there right?
[19:56:56] <mrsun> getting powder coating off without doing it mechanicaly is rocket science it seems tho :P
[19:57:02] <ds3> blah
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[19:59:56] <L84Supper> thermosets tend to be that way
[20:00:14] <djdelorie> ah, the benefits of having a cnc machine handy... needed a new house number sign for the driveway, just had the machine carve me one :-)
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[20:01:04] * djdelorie needs to find a better paint-resistant film to stick on though, besides paper and spray glue :-)
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[20:02:00] <Loetmichel> mrsun: steel underneath? oder aluminium?
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[20:02:12] <mrsun> steel
[20:02:16] <L84Supper> mrsun: do you know what kind of powdercoat it is? polyester, epoxy ?
[20:02:20] <mrsun> dont know
[20:02:29] <mrsun> could ask the firm that has painted it :P
[20:02:32] <Loetmichel> steel is simple: NaOh 30% in water, at 80°c or so
[20:02:42] <mrsun> tried 2 different commercial paint strippers, one water based and one solventbased
[20:02:46] <Loetmichel> half an hour-> powder coatoing gone
[20:02:51] <Loetmichel> coating
[20:03:22] <mrsun> Loetmichel, tried NaOH tho not at 80 degrees but mixed with something so it wont dry, been sitting for 24 hours and nothing
[20:03:32] <mrsun> not a single dent
[20:03:33] <L84Supper> yes, it's not paint, it's actually polymerizes when it cures, so you're trying to dissolve a polymer
[20:03:47] <L84Supper> or an epoxy
[20:03:59] <djdelorie> Note: NaOH is an organic solvent. Your skin is organic...
[20:03:59] <Loetmichel> mrsun: you have seen the concentration?
[20:04:11] * Loetmichel seconds taht note strongly
[20:04:22] <mrsun> Loetmichel, 30g to 100g water i had
[20:04:34] <L84Supper> what was the powder coated metals intended use? that might be a clue as to what type it is
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[20:04:38] <Loetmichel> that sounds about right
[20:04:39] <mrsun> djdelorie, burned a bit to get it on me :P
[20:04:46] <Loetmichel> and hot is has to be
[20:04:57] <mrsun> L84Supper, its for cabinets etc for tools
[20:04:59] <mrsun> indoor use
[20:05:10] <L84Supper> might be an epoxy then
[20:05:15] <Loetmichel> most likely polyester
[20:05:19] <mrsun> haha
[20:05:29] <djdelorie> In the USA, NaOH is found under "drain cleaners" in hardware stores, just make sure you get the NaOH variant and not the "safe" variant
[20:06:06] <Loetmichel> DJ9DJ: and be sure to sieve the aluminium particles out, the produce oxygen but weaken the naoH
[20:06:12] <Loetmichel> grr
[20:06:14] <L84Supper> polyester tends to be used for outdoor apps
[20:06:15] <Loetmichel> djdelorie
[20:06:27] <mrsun> djdelorie, yes i have NaOH i use it when i make pcbs
[20:06:39] <djdelorie> me too, that's why I know where to buy it :-)
[20:06:44] <L84Supper> epoxy is tougher but does not do well over extended periods in UV (outdoors)
[20:07:12] <djdelorie> "making pcb's: the art of using all the very dangerous but easily obtainable home chemicals" :-)
[20:07:14] <mrsun> the paint stripper i used "worked" but it would cost me more in paint stripper and work to get it off then to go buy new tubing ...
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[20:07:32] <mrsun> had to apply, then scrape off a layer, then apply again etc etc
[20:07:38] <L84Supper> mrsun: was it an acid type stripper?
[20:07:41] <mrsun> i want something that works like all the youtube videos
[20:07:55] <mrsun> L84Supper, not sure realy ...
[20:07:56] <djdelorie> if NaOH fails, try Goof Off (xylene/tolulene). Also extremely dangerous to humans, but a strong solvent
[20:08:22] <mrsun> djdelorie, thing is that im in sweden ... they ban everything that works good in this country
[20:08:32] <mrsun> and its almost impossible to get good stuff in stores ..
[20:08:42] <mrsun> stupid country
[20:09:06] <mrsun> "lets make something that is 1/3 as dangerous as this but make it work 1/6 as good" .. well done
[20:09:29] <mrsun> a more dangerous product due to the fact that you need to use lots and lots of it, but per volume its alot less dangerous then the previous version
[20:09:37] <djdelorie> around here, you can by hazardous chemicals at the local hardware store, firearms at Wal*Mart, but you can't legally get anything to help you lose weight or watch BluRay disks you already own.
[20:09:55] <cradek> or clear your sinuses?
[20:10:02] <djdelorie> (well, unless you buy into the cartels, of course)
[20:11:07] <L84Supper> the non-polar solvents won't do much to reduce the epoxy
[20:11:19] <djdelorie> acetone for epoxy?
[20:11:20] <Jymmm> Goof Off isn't xylene, but naphatha
[20:11:57] <Jymmm> If it's lithium/grease, use charcoal lighter fluid.
[20:13:15] <djdelorie> all it says on the can wrt ingredients is "Warning: contains xylene"
[20:13:29] <Jymmm> cigar lighter fluid is also naphtha, good for removing adhesive sticker residue.
[20:13:39] <djdelorie> afaik, it's the xylene that makes it a wicked solvent
[20:14:02] <Jymmm> for grease?
[20:14:18] <djdelorie> for pretty much everything I've tried it on :-)
[20:14:53] <Jymmm> xylene is just a slow evaporating acetone.
[20:15:47] <Jymmm> But to remove adhesive residue, naphatha works great, which is also Cigar lighter fluid.
[20:16:09] <Jymmm> For grease, bbq charcoal fluid.
[20:16:33] <Jymmm> is the only thing I found (other than gasoline) that works well.
[20:17:02] <djdelorie> I first experienced goof-off when a relative used it to remove "road tar" off a car. That's also when I noted it removed the paint if you weren't careful ;-)
[20:17:27] <Jymmm> I stay away from Toulene, that shit will easily fuck you up.
[20:17:50] <djdelorie> I have a bunch of different solvents to go with all the woodworking stuff, but goof-off is the "last-ditch" option for stubborn stuff
[20:17:51] <Jymmm> Yeah, xylee will do that, naphtha won't
[20:18:17] <djdelorie> naptha will take wax off a wood finish, without taking the finish off. Useful stuff.
[20:18:32] <Jymmm> naphatha will soften road tar and the like
[20:18:52] <Jymmm> so will 180F water =)
[20:18:54] <L84Supper> Methylene chloride (dichloromethane) for epoxy
[20:19:14] <Jymmm> L84Supper: Fuck you!
[20:19:17] <djdelorie> water messes up the wood, though, if it gets through. Typically you use organics if you can.
[20:19:19] <mrsun> L84Supper, been looking for something here with that in but cant find anything
[20:19:28] <Jymmm> L84Supper: dont be fucking with ckrlo shit =)
[20:19:33] <L84Supper> NMP and MEK
[20:19:49] <djdelorie> who knew woodworking required a chemistry background? ;-)
[20:20:00] <L84Supper> not that you'd want to use any of these without proper safety precautions
[20:20:34] <Jymmm> djdelorie: Sulfuric acid for aging wood
[20:20:49] * djdelorie normally only uses new wood
[20:21:07] <L84Supper> Sulfuric acid will also cut many epoxies well
[20:21:16] <Jymmm> brn wood is hard and harder to find these days
[20:21:19] <Jymmm> barn
[20:21:53] <Jymmm> L84Supper: o, I don't want to wear a hazmat suit to do hobby tyvm
[20:22:00] <Jymmm> s/o/No/
[20:22:11] <L84Supper> you can also burn it off, but it produces lots of nasty things as it decomposes
[20:22:35] <mrsun> ive been welding close to it, not very plesant smoke :P
[20:22:40] <mrsun> thats why i want it removed
[20:22:49] <Jymmm> mrsun: what?
[20:22:51] <L84Supper> best bet is to not use epoxy coated metal
[20:22:55] <Jymmm> mrsun: what removed?
[20:22:59] <mrsun> powder coating
[20:23:16] <mrsun> L84Supper, i got a buttload of 50x50x2 profiles with it :/
[20:23:27] <Jymmm> it's a polymer, soooooooooo
[20:23:55] <Jymmm> mrsun: I'd suggest a big field and a bond fire to remove it
[20:24:33] <Jymmm> or LN2
[20:24:35] <L84Supper> yeah, the powdercoat was designed to stay on
[20:25:19] <mrsun> well i guess the wirebrush will have to make the parts i need to weld clean so i can weld it without inhaling that shit
[20:25:27] <mrsun> then just fix it up and paint over it :P
[20:25:54] <jdh> I need a 1/4" female BSPP to 1/4" Male NPT. Anyone have one laying around?
[20:25:55] <L84Supper> and a fan + ventilation, stay upwind when you weld
[20:25:58] <Jymmm> gasket remover??? http://www.choppersurplus.com/global/articles/howtoremovepowdercoating.html
[20:26:25] <jdh> why do you boot?
[20:26:27] <mrsun> Jymmm, tried to find it around here, cant find anything .. sure they can take it home but as its not a normal product for them i get to wait etc :/
[20:27:08] <L84Supper> really really powerful UV lamps will do it as well, but it might take a few weeks
[20:28:52] <Jymmm> mrsun: Dichloromethane?
[20:29:40] <Jymmm> oh, Freon
[20:30:56] <Jymmm> It's banned in EU since 2010
[20:31:11] <Jymmm> mrsun: Got Field?
[20:31:24] <Jymmm> or just torch it off
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[20:33:17] <L84Supper> http://www.aerochem.net/dekote-af
[20:34:49] <L84Supper> Benzyl Alcohol, Aromatic Hydrocarbon, Hydrogen Peroxide, Dioxolane
[20:38:31] <L84Supper> they don't break the polymer chain but try to get underneath the coating and break the bond to the substrate
[21:06:12] -!- _abc_ [_abc_!~user@unaffiliated/ccbbaa] has joined #linuxcnc
[21:06:38] <_abc_> Good evening. Has anyone here tinkered with case hardening small mill bits to be used in the linuxcnc context?
[21:06:45] <_abc_> Carburizing, specifically
[21:07:10] <_abc_> I found a quite detailed paper on carburization of small bits and I would like to try it
[21:07:46] <_abc_> But has anyone tried this? The purpose is to sharpen, carburize, and temper broken off expensive small (<1mm) mill bits for reuse.
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[21:18:21] <sliptonic> I'm getting ready to replace the motherboard for my mill controller. Someone was recommending this one not long ago: http://www.newegg.com/Product/Product.aspx?Item=N82E16813128452 but it's discontinued. Anyone have a suggestion?
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[21:24:15] <JT-Shop> might read the computer part of the forum
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[21:57:01] <sliptonic> Thanks JT-Shop. I will. Also, I recall someone posting a link to a drive. IIRC it was a solid state sata drive that plugged directly into the sata port without a cable. I haven't been able to find it though so I'm probably using the wrong googleons.
[21:58:06] <JT-Shop> I think andypugh uses something like that
[21:58:28] <andypugh> Someone just sent me this link. I think the URL is fairl self-explanatory. http://scanlime.org/2012/11/hacking-my-vagina/
[21:58:30] <JT-Shop> I remember some discussion of late on diffrent mother boards
[21:59:02] <andypugh> sliptonic: http://www.ebay.com/itm/Kingspec-8GB-SATA-DOM-MLC-Flash-SSD-Disk-On-Module-Network-PC-Solid-State-Drive-/310421036909?pt=US_Solid_State_Drives&hash=item4846891f6d
[22:00:28] <sliptonic> Thanks andypugh. That's the one.
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[22:09:15] <DJ9DJ> gn8
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[22:27:07] <tjb1> Evening all
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[22:45:37] <tjb1> Im gonna dump all homing and just use my switches as limits
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[22:48:03] <JT-Shop> not having any luck?
[22:48:48] <JT-Shop> I thought you had some extra parallel port inputs?
[22:52:29] <tjb1> I dont home really so doesnt matter to me
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[23:33:17] <tjb1> JT-Shop: What is the purpose of homing a stepper setup?
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[23:35:49] <JT-Shop> so my rapid to home button works and the soft limits work
[23:35:52] <icee> tjb1: you have to set up your coordinate system somehow
[23:36:15] <tjb1> icee: I can do that with touch offs
[23:36:21] <tjb1> Which I do every time I run it anyway
[23:36:42] <icee> tjb1: that will get you work coordinates, but not machine coordinates.. i prefer not to bump limit switches
[23:36:59] <JT-Shop> jep, jog to the start position and fire in the hole
[23:37:43] <tjb1> If the time comes I will work out how to do it with 1 input…just gonna be limits for now
[23:41:34] <tjb1> Oh JT-Shop, I have to invert the arc_ok signal in thcud or maybe change the probing to L3?
[23:43:11] <JT-Shop> qu
[23:43:58] <tjb1> If I set arc_ok to -not, thcud works but the M66 doesnt
[23:44:28] <tjb1> I remove -not, M66 works and thcud doesnt
[23:44:43] <JT-Shop> I don't think they are related unless you did something in hal
[23:45:51] <tjb1> The M66 is waiting for digital input from arc_ok before it starts motion
[23:46:29] <Tom_itx> icee are you icee from years back?
[23:46:35] <Tom_itx> in #electronics?
[23:49:17] <tjb1> I dont know if changing it from L4 to L3 will work or if I am going to have to go into the comp file and put !arc_ok instead
[23:49:24] <JT-Shop> what does M66 have to do with probe input?
[23:50:24] <Tom_itx> waits for input?
[23:50:40] <JT-Shop> oh I'm confused now
[23:51:29] <JT-Shop> M66 P0 L1 Q2 (Wait 2 seconds for Arc OK from Torch)
[23:51:31] <tjb1> sorry I didnt mean probe
[23:51:37] <tjb1> I meant arc_ok
[23:52:20] <icee> Tom_itx: yes, yes i am
[23:52:34] <Tom_itx> i thought you were
[23:52:36] <Tom_itx> wb
[23:52:46] <Tom_itx> how long have you been hangin out in here?
[23:52:47] <icee> :) thx
[23:52:51] <icee> hmm, a few days
[23:52:52] <JT-Shop> net start-motion-input motion.digital-in-00 <= hm2_5i25.0.7i76.0.0.input-04
[23:52:57] <JT-Shop> net start-motion-input => thc-pid.arc-ok
[23:53:05] <icee> i've had emc2 for quite awhile on my mill, but i'm contemplating doing new/fancier things with it so lurking
[23:53:10] <JT-Shop> tjb1: that's what I use
[23:53:25] <Tom_itx> icee, i didn't realize you were into cnc
[23:54:00] <Tom_itx> it's come a long ways
[23:54:18] <tjb1> JT-Shop: My arc_ok sinks the signal so its coming back false in LinuxCNC if I dont invert it. I have M66 watching the signal go low(L4) which works when its not inverted…if I invert it, would L3 watching it go high now work?
[23:55:44] <JT-Shop> what does the manual say?
[23:56:42] <JT-Shop> maybe I should use L3 too
[23:57:11] <tjb1> "Better not tell you now" :)
[23:57:24] <tjb1> "Reply hazy, try again"
[23:58:09] <JT-Shop> I did get my edge radius subroutine sorted out for the lathe
[23:58:19] <Tom_itx> well is it waiting for a rising or falling edge?
[23:58:57] <tjb1> high or low
[23:59:18] <JT-Shop> the manual seems to imply that mode 3/4 are for dio and mode 1/2 are for aio
[23:59:47] <tjb1> 0 is only allowed on an analog