#linuxcnc | Logs for 2014-02-13

[02:19:39] <Deejay> moin
[05:33:59] <archivist_herron> hazmat http://youtu.be/FG1LGKieTxY
[07:33:32] <Jymmm> "The developer formerly known as jepler, jepler"
[07:58:25] <quitte> Hi. anyone got an idea what to do about that: http://imgur.com/Jr82vMe ?
[08:12:01] <eric_unterhausen> quitte: there is some problem with your real time kernel vs the build of linuxcnc
[08:20:11] <quitte> okay thanks. i did a git clean -dfx and will rebuild on a system as clean as it gets. hopefully that changes something
[09:30:16] <CaptHindsight> http://www.youtube.com/watch?v=IukDWhf7U9I 'Priceless Corvettes swallowed by massive sinkhole at Kentucky museum'
[09:36:01] <archivist> some restoration required
[09:39:02] <eric_unterhausen> I'm not even a big fan of corvettes and that is horrible
[09:54:37] <cradek> CaptHindsight: http://www.nbcnews.com/news/us-news/gas-pipeline-blast-kentucky-burns-houses-leaves-huge-crater-n29206
[09:55:32] <cradek> so kentucky is in the news a lot today
[09:56:12] <eric_unterhausen> sinkholes in bowling green are not exactly news
[09:56:25] <eric_unterhausen> it's like whackamole
[09:56:29] <cradek> what does it? is that a mining area?
[09:56:36] <eric_unterhausen> underground caves
[09:56:47] <Jymmm> eric_unterhausen: Hole in one for the blind?
[09:57:14] <eric_unterhausen> they have barriers set up pretty quickly when one penetrates the surface
[09:57:32] <eric_unterhausen> if you read the story, the fire department came and put up barriers in the museum
[09:57:44] <eric_unterhausen> and the pictures of the barriers looked pretty stout
[09:58:01] <JT-Shop> if you have a bunch of subroutine files to choose from is there an easy way to pass that to a main G code file?
[09:58:05] <eric_unterhausen> there are rivers running through the underground caves, so there is erosion
[09:58:33] <Jymmm> Ah, a fishing HOLE!
[09:59:13] <Jymmm> So, if it's underground, does that mean no fishing license in needed?
[09:59:26] <eric_unterhausen> good question
[09:59:31] <Jymmm> =)
[09:59:53] <eric_unterhausen> I think the fish are sightless, and protected
[10:00:07] <eric_unterhausen> my bro did some undergrad research down there
[10:00:49] <Jymmm> ah
[10:03:03] <eric_unterhausen> I'm trying to figure out if I can travel to Virginia
[10:03:15] <eric_unterhausen> looks like the lanes are clear, but there is almost zero traffic
[10:04:00] <MrHindsight> oh, I thought there was some competency test you had to fail first
[10:10:41] <eric_unterhausen> my family members failed that competency test long ago
[10:11:09] <eric_unterhausen> I feel compelled to visit them
[10:21:39] <64MAADMG8> hi guys
[10:22:23] <zeeshan> im trying to mount the pcbs on the aluminum mounting plate i made
[10:22:39] <zeeshan> do you guys use 1 computer standoff or two
[10:22:45] <zeeshan> to space the board from the aluminum
[10:22:56] <zeeshan> and do you guys use some sort of insulation on the back?
[10:23:11] <PetefromTn> Morning folks..
[10:23:54] <PetefromTn> Depends on the board and the distance I guess.
[10:24:23] <zeeshan> at work we had to space 600v bus bars 1" away minimum
[10:24:34] <zeeshan> im not sure what the spacing requirement is for 24v =P
[10:24:37] <jdh_> vs. the 24vdc you are using now?
[10:24:41] <zeeshan> yea
[10:24:59] <PetefromTn> I made my own standoffs when the board had isolation at the holes and have used PC style ones made from nylon in other cases.
[10:25:03] <zeeshan> anything less than 1" required mylar or ppe film
[10:25:18] <jdh> I used like 3/8" hollow standoffs and 4-40 bolts
[10:25:40] <zeeshan> so thats like 1 computer standoff
[10:25:42] <PetefromTn> The Mesa cards I used have some nice Din mount setups you can buy for them for reasonable price and they are sweet..
[10:25:46] <zeeshan> i think these at 6-32 not 4-40
[10:26:06] <jdh> I thought I tried 6-32 and the holes were too small.
[10:26:21] <jdh> I might have misremembered though.
[10:26:43] <jdh> they have mechanical drawings in the manual with hole size
[10:26:45] <zeeshan> lemme measure the holes
[10:26:52] <zeeshan> jdh not the cnc4pc ones
[10:26:57] <zeeshan> they give you the bolt hole placement but not diameter
[10:26:59] <zeeshan> its stupid
[10:27:06] <zeeshan> or im stupid, cause i've checked them a bunch of times and havent seen it
[10:27:08] <zeeshan> ill just measure it
[10:27:11] <jdh> oh I thought you were talking about real cards
[10:27:24] <zeeshan> =D
[10:27:40] <PetefromTn> LOL
[10:27:45] <jdh> I used the cnc4pc card drawing for my mounting... should have checked since only 2 of them actually lined up with the drawing
[10:28:09] <zeeshan> 1 thing about electrical people
[10:28:13] <zeeshan> they fail at mechanical things
[10:28:19] <zeeshan> i've learned this repeatedly at work
[10:28:22] <jdh> the mesa ones are good
[10:28:48] <PetefromTn> Ya sure the drawing was right side up done that before LOL..
[10:29:07] <jdh> in my case, he rev'ed the board but not the drawing.
[10:29:35] <PetefromTn> I made a template of my Atom board to drill and tap into the enclosure for it and drilled the holes only to find out it was upside down so only some of the holes lined up LOL
[10:30:09] <jdh> mount it upside down, with really big standoffs
[10:30:36] <zeeshan> .145 roughly
[10:30:45] <zeeshan> so a 6-32 bolt would work since it has a major of .136
[10:30:50] <PetefromTn> That pissed me off because I thought I was being careful and wanted it right the first time. Luckily I was able to just drill another two holes and it worked .
[10:31:03] <PetefromTn> jdh: hehe
[10:31:04] <zeeshan> the index card uses 4-40 bolts though
[10:31:10] <jdh> and you did those free-hand?
[10:31:58] <jdh> I plotted the layout 1:1 with center marks, taped it down and punched the centers
[10:32:21] <PetefromTn> yeah me too.. only I made the template by hand with drafting tools..
[10:33:01] <zeeshan> did you guys put insulation behind your boards?
[10:33:18] <PetefromTn> Had some success drawing with Freecad last night thanks to NormandC....
[10:33:37] <PetefromTn> Learned how to render a spring too which I never did before.
[10:33:54] <PetefromTn> zeeshan: Mine did not need it.
[10:34:13] <zeeshan> i think im just over thinking it
[10:34:22] <zeeshan> if we placed 600v 1" away and it was fine
[10:34:33] <zeeshan> ill be fine with a 12v puny board .5" away
[10:39:10] <PetefromTn> Mine is inside my pendant.. http://imagebin.org/293113
[10:41:03] <zeeshan> ;D
[10:41:15] <zeeshan> jdh: where did you find 4-40 stand offs?
[10:41:21] <zeeshan> thats the only thing i don't know where to get
[10:41:30] <zeeshan> the 6-32 standoffs are typical at a computer shop
[10:41:54] <PetefromTn> I bought a little kit awhile back that had all sorts of standoffs for PC stuff in it for like ten bucks...
[10:42:04] <zeeshan> just at a regular comp store?
[10:43:03] <PetefromTn> no online.
[10:43:23] <PetefromTn> It had brass and plastic standoffs of different sorts and all kinda screws for it.
[10:43:39] <skunkworks> doesn't everyone have a box full of computer fasteners?
[10:43:44] <PetefromTn> It also had the little coupler nuts to add boards atop boards.
[10:44:03] <PetefromTn> skunkworks: LOL yeah its a rite of passage
[10:44:08] <eric_unterhausen> I used to have an infinite number, but I stopped collecting them and they seem to have gotten used up
[10:44:40] <PetefromTn> I use them for all sorts of stuff even beyond PC they come in handy.
[10:44:43] <zeeshan> i have tons of 1" bolts
[10:44:51] <zeeshan> cause i deal with structural stuff
[10:44:52] <jdh> skunk: I have tens of bags full of them
[10:44:54] <zeeshan> not little stuff ;[
[10:45:18] <pcw_home> pretty sure PC standoffs are M3 not 6-32
[10:45:25] <zeeshan> pcw i measured
[10:45:29] <jdh> mine were just hollow aluminum that fit over the bolt
[10:45:39] <zeeshan> not all pc standoffs are the same ;p
[10:45:57] <cpresser> mine are also M3.
[10:46:35] <cpresser> i just bought a bunch of them for pcb-mounting
[10:46:48] <pcw_home> bracket screws are 6-32
[10:47:33] <PetefromTn> http://www.ebay.com/itm/230-Pc-Large-Computer-Standoff-Kit-w-Screws-more-/370604587688?pt=US_Computer_Case_Accessories_Tool_Kits&hash=item5649c13aa8
[10:47:42] <PetefromTn> Mine is not that one but similar.
[10:47:46] <zeeshan> i aint waiting 10 years :P
[10:47:49] <zeeshan> i need em now!
[10:48:02] <zeeshan> that kit shows theres both 3 mm and 6-32 standoffs :P
[10:48:57] <pcw_home> and probably 4-40 jackposts for brackets
[10:49:25] <zeeshan> im going to go to my local bolt supplier
[10:49:29] <zeeshan> hopefully they have the stand offs
[10:49:47] <Zaarin> anyone in here good at stick welding?
[10:50:12] <PetefromTn> I have done it a good bit but I love the TIG!!
[10:50:37] <Zaarin> Funny, we had a play with my new GYS machine today, apparently it will do TIG albeit only in DC mode
[10:50:58] <Zaarin> but I was only doing stick flux arc welding today
[10:51:03] <PetefromTn> Dc tig is most smooth anyways just can't really do Aluminum..
[10:51:06] <zeeshan> yo guys
[10:51:07] <zeeshan> one quick question
[10:51:14] <zeeshan> do wires come in single wire shielded form?
[10:51:24] <zeeshan> or is it a minimum of 2 wire shielded
[10:51:35] <zeeshan> something like an 18 or 20 gauge
[10:51:45] <PetefromTn> If you have a DC power supply you should try DC stick welding... very smooth.
[10:51:56] <archivist> single shielded is called coax
[10:52:16] <zeeshan> yea but that stuff has a big ass plastic piece
[10:52:18] <PetefromTn> AC stick is HARSH IMHO.
[10:52:25] <Zaarin> Listen I've been welding pipe today, is it better to do 3 tacks and 3 beads or 4 tacks and 4 beads? I noticed when you're trying 2/2 when you pull the rod to the bit of the pipe that's closest to you the bead's fine but when you're going round and away from you you only make the puddle closest to you bigger and you don't weld the curve going away from you
[10:52:25] <archivist> but are you sure you want that
[10:52:31] <zeeshan> no i don't want that
[10:52:42] <Zaarin> We got to start somewhere
[10:52:47] <zeeshan> http://mahadevtelelink.com/images/product/Coaxial%20Cable.jpg
[10:52:54] <zeeshan> i want something like this
[10:53:06] <zeeshan> small and flexible
[10:53:12] <archivist> that is coax
[10:53:15] <jdh> I have some spools of that.
[10:53:27] <archivist> there are various sizes
[10:53:27] <Zaarin> I never welded before 2 weeks ago now I got my own welding table in some abandoned incomplete concrete house
[10:53:28] <zeeshan> see i think that kind of cable would be easier to route
[10:53:49] <zeeshan> for layout purposes
[10:53:56] <archivist> not sure you need coax in a cnc though
[10:54:18] <PetefromTn> zeeshan: you need to move with the weld around the pipe. Pipe welding is an artform in itself. There are lots of youtube videos of it and it depends a lot on the type of metal and the diameter and thickness of the pipe.
[10:54:38] <archivist> me notes mechanical guys over do the cabling
[10:54:42] <Zaarin> inch diam pipe, 3mm thickness
[10:54:44] <zeeshan> archivist: ROFL
[10:55:06] <zeeshan> im thinking about ease of routing
[10:55:08] <zeeshan> if i use 2 wire shielded
[10:55:20] <zeeshan> the second wire isnt necessarily going to the same location
[10:55:21] <zeeshan> know what i mean?
[10:55:36] <PetefromTn> Zaarin: personally I would not weld that pipe with stick LOL...
[10:55:42] <zeeshan> it might need to be mounted 6-7 inches further away
[10:55:43] <archivist> you dont always need shielding
[10:55:59] <Zaarin> I type pipe welding into youtube, they're using tig and they are pulling this wire over the join and going over the wire like a blowtorch
[10:56:06] <zeeshan> well from what i've read you want shielded wire for all your low voltage control wire
[10:56:23] <PetefromTn> is it stainless?
[10:56:29] <archivist> shielding for encoder wires is sensible
[10:56:36] <zeeshan> so basically my 0-10v signal, my signals for cw/ccw, pul+ pul-, etc
[10:56:44] <zeeshan> even the charge pump control wire should be shielded
[10:56:52] <Zaarin> mild steel, had a chance to pick up stainless today, but I was advised to use offcut and scrap to practice on
[10:57:02] <PetefromTn> good advice.
[10:58:16] <Zaarin> I got a respirator, autodarkening helmet, headphone defenders, a sheet of mdf and a sheet of mild steel 3mm that I stacked on some old bricks, had a go today after class using the 50m extension lead, I'd say I'm better at welding than grinding because I don't have a vice at the moment, but for now it's just a place I can practice my beading
[10:58:17] <archivist> zeeshan, you can get it down to about 1/8" overall dia
[10:58:23] <PetefromTn> http://www.youtube.com/watch?v=is0BP39XZLw This may help and this guy is a great source of information about welding.
[10:58:28] <Zaarin> cheers
[10:58:31] <zeeshan> fak
[10:58:34] <zeeshan> that's still bulky
[10:58:59] <archivist> zeeshan, there are some thinner but they are going to cost
[10:59:09] <zeeshan> what gauge is the 1/8 one roughly
[10:59:12] <zeeshan> 18?
[10:59:18] <archivist> no idea
[10:59:29] <eric_unterhausen> brother google knows
[10:59:33] <zeeshan> okay, i will ask for coax cable at the local electronic store
[10:59:35] <PetefromTn> I would recommend you get the Tig out for this one DC and practice on some scrap. Follow this video for ideas.
[10:59:44] <eric_unterhausen> it's more like 10, I think
[11:00:11] <eric_unterhausen> oh, sorry, coax
[11:00:20] <Zaarin> petefromTn, I'll need an AC machine for that, my GYS only outputs DC and I only got mild steel sticks ATM
[11:00:21] <zeeshan> man im just tempted to buy 18 gauge regular cable
[11:00:27] <jdh> coax sounds overkill, is expensive, and harder to terminate
[11:00:27] <zeeshan> and stick aluminum foil around all the control wires
[11:00:37] <zeeshan> jdh: whatd you use?
[11:00:49] <eric_unterhausen> twisted pair would work, shielded twisted pair would definitely work
[11:00:50] <Zaarin> 33 pulses per second
[11:01:01] <PetefromTn> Zaarin: No man Mild steel loves DC...
[11:01:10] <jdh> plain 18 or 22 gauge shielded 2 or 4 conductor from Lowes
[11:01:17] <PetefromTn> AC tig is mostly for aluminum etc.
[11:01:40] <zeeshan> jdh: did you have one wire that needed to go some where else for your 2 conductor shielded cable?
[11:01:49] <jdh> no. why do you?
[11:02:24] <zeeshan> okay for example, for my vfd control wiring, the 0-10v signal goes to one end of the c6 board
[11:02:33] <zeeshan> and the ccw/cw wires go to the other end of the c6 board
[11:02:52] <jdh> strip more outher sheath
[11:03:00] <zeeshan> so if i were to run a 4-wire shielded conductor, about 5" of it would be unshielded
[11:03:00] <archivist> zeeshan, for cheap shit thin shielded look at audio cable
[11:03:10] <zeeshan> which defeats the purpose of shielding
[11:03:24] <jdh> and dont' worry about it, you will quit using that card soon anyway.
[11:03:24] <Zaarin> My teacher only knows stick and MIG, knows nothing of TIG, it's before his time, he advised me to get a good arc welding machine to practice on, picked up the GYS for 250, dude in the shop said it was his finest machine from France, my teacher said it can do TIG albeit only on DC mode, everyone online highly recommends TIG, loads of the vids I've seen says the moment you get the Tungsten rod
[11:03:24] <Zaarin> (which I don't have) inot the puddle you gotta grind the rod down or else it won't weld properly
[11:03:30] <zeeshan> jdh LOL why
[11:03:55] <zeeshan> lots of people use it?!
[11:04:08] <jdh> for mach
[11:04:14] <zeeshan> they have a hal file for it
[11:04:26] <zeeshan> http://cnc4pc.com/Files/EMC2.txt
[11:04:32] <jdh> I know
[11:04:49] <Zaarin> I've been warned aluminium is a pain, heats up well quick, got to use loads of amps because the heat spreads well quickly, said the gas aluminium gives off is really bad for you and UV burns are commmon because it is very reflective, he said we'd only be working with mild steel for this course
[11:05:42] <zeeshan> ok ill be back later, thank you for the help :P
[11:05:44] <eric_unterhausen> cnc4pc obsoleted my bob and no longer even has files for it. I see no reason to do something like that
[11:05:52] <PetefromTn> yeah well that is mostly true but it is not as bad as it sounds. If you have DC tig and whatnot you are much better off welding the tube that way.
[11:06:36] <PetefromTn> Yeah if you dip your tungsten you contaminate it and will need to regrind it but that is pretty easy. It just takes practice to keep from accidentally dipping it and you will still occasionally dip it once you do it enough.
[11:07:02] <jdh> and don't inhale while grinding thoriated electrodes
[11:07:45] <jdh> and don't use that grinder for anything except tungsten electrodes
[11:07:45] <PetefromTn> I try to not use thoriated... there are better alternatives now...
[11:07:59] <PetefromTn> yeah.
[11:08:40] <PetefromTn> I use a handheld pneumatic belt sander and a cordless drill to grind mine most of the time.
[11:09:31] <roycroft> i got a circular saw blade sharpener from harbor freight a while back - it has a little diamond-dust wheel
[11:09:40] <roycroft> i ripped most of it apart and made a jig to hold electrodes
[11:09:52] <roycroft> and i bought a wheel for every type of electrode
[11:09:57] <roycroft> it was cheap and works great
[11:10:32] <roycroft> and if i'm going to worry about handling thoriated electrodes then i need to stop eating bananas too :)
[11:11:20] <Zaarin> Should I practice loads with the stick for now or should I go out tomorrow and get a tungsten rod?
[11:11:32] <jdh> do both.
[11:11:37] <Zaarin> and I'll need a gas setup won't I?
[11:11:44] <Zaarin> argon CO2 which I don't have
[11:11:53] <jdh> jsut a bottle of pricey gas, and a reg, and hoses, and...
[11:12:15] <Zaarin> a tig holder, it looks totally different to the clamp I got ATM
[11:12:35] <jdh> it is
[11:12:42] <Zaarin> My teacher was advising me to jack in my clamp with the 2m lead for a 3m lead because it's handier
[11:13:16] <PetefromTn> Oh sorry I thought you already had the DC tig setup there. Yeah you will need a bunch of stuff and it won't be too cheap.
[11:13:52] <Zaarin> I got a GYSmi 315T
[11:15:32] <Zaarin> 131T sorry
[11:15:35] <PetefromTn> It looks like that machine is just an arc welder..
[11:15:58] <Zaarin> It arc welds nicely
[11:17:02] <PetefromTn> I am sure it does. You can of course tig weld with an arc welder but you have to setup the torch outside the unit. Kind of a PIA.
[11:17:07] <Zaarin> It says in the manual this: TIG WELDING * This machine can be used in a TIG mode with a scratch ignition, what does that mean?
[11:17:24] <PetefromTn> You won't have auto start you will need to scratch start.
[11:17:30] <PetefromTn> Also kind of a PIA.
[11:17:41] <Zaarin> PIA?
[11:19:07] <Zaarin> oh just scrape the rod on the metal then lift a mm or so above the puddle?
[11:20:02] <archivist> some sticks can remain in contact at an angle the flux holds the arc distance
[11:20:15] <PetefromTn> Pain in Ass..
[11:20:17] <Zaarin> In the safety bit it says in TIG welding, manipulate the gas bottle carefully, Indeed, there are risks if the bottle or the bottle valve are damaged
[11:20:28] <Zaarin> :)
[11:20:46] <Zaarin> So it CAN be used in TIG configuration but it is not ideal for TIG?
[11:20:57] <PetefromTn> Yeah but it is an inert gas non explosive. But you do need to be careful with any high pressure cylinder.
[11:21:14] <Zaarin> yeah don't throw it from a height onto concrete :)
[11:21:20] <Zaarin> Don't weld the cylinder
[11:21:30] <Zaarin> don't put the cylinder into a bonfire
[11:21:32] <PetefromTn> don't weld your forehead..
[11:22:10] <Zaarin> yeah that's the sort of common sense stuff
[11:23:11] <archivist> yes be careful with cylinders http://youtu.be/FG1LGKieTxY
[11:23:39] <jdh> archivist: I just watched that about 10 mins ago
[11:24:16] <archivist> one of the best safety vids
[11:24:46] <jdh> someone posted it on a few diving sites this morning.
[11:26:49] <Zaarin> Holy shit! bad driver, poorly secured cargo
[11:26:59] <jdh> or, typical russian driving.
[11:27:15] <Zaarin> I'd like to make a toast... to Russian driving
[11:27:26] <PetefromTn> Jeez Oxygen can be really dangerous in an accident like that...
[11:28:00] <jdh> I've seen some oxygen booster fires in florida. The steel burned.
[11:29:18] <PetefromTn> Well oxygen is a catalyst to combustion so...
[11:32:26] <PetefromTn> Watching that video the cameraman is simply NOT far enough away LOL.
[11:32:46] <cradek> neither is the idiot cop at the end
[11:32:59] <jdh> they never are in russian dashcam videos... search for others, they are pretty amusing.
[11:33:04] <cradek> man those cylinders could fly. I wouldn't be anywhere near that.
[11:33:41] <Zaarin> The guy ducked as another one went up in flames and he ran whilst on his phone in the middle of the autobahn
[11:34:41] <PetefromTn> What is scary is those pieces that are flying thru the air are presumably whole sides of steel cylinders that grenaded and probably weigh 20lbs or more each...
[11:35:58] <PetefromTn> I got a full cylinder here on my tig and it is all a man wants to carry by himself in one piece...
[11:37:21] <jdh> Pete: I swap o2 and helium bottles in my yukon at the gas place. 5 per trip is a pain.
[11:39:03] <Zaarin> Seems to me like Russias economy is only still flowing because they're still cutting corners re health and safety even in the 21st century
[11:41:37] <eric_unterhausen> reminds me of the time Oregon blew up the whale
[11:41:40] <IchGuckLive> hi all B)
[11:41:57] <IchGuckLive> zeeshan: add on more golden
[11:42:47] <PetefromTn> jdh: Im sure.
[11:43:07] <jdh> anyone know if I can run NM-B wire in my crawlspace, anchored to floor joists? Or does it need to be protected?
[11:43:40] <eric_unterhausen> there was certainly a time when you could do that
[11:44:45] <PetefromTn> Depends on code in your area I have certainly seen that kind of Romex run unprotected around here..
[11:45:02] <eric_unterhausen> around here too, they are way behind on code
[11:45:11] <PetefromTn> Doesn't mean it is code tho LOL..
[11:45:52] <PetefromTn> Just get some plastic conduit or flexcon to be safe I guess.
[11:46:19] <eric_unterhausen> I use cmt for my own gratification
[11:46:32] <jdh> I would think, but don't know, that conduit might be worse for retaining heat?
[11:47:09] <eric_unterhausen> don't run romex through undersized conduit
[11:47:34] <eric_unterhausen> I'm sure there is derating, and conduit is cheap
[11:49:26] <jthornton> how can I prompt an operator to enter in a file number and pass that to a subroutine?
[11:51:06] <Zaarin> jthornton, you got the source code and a sane compiler handy?
[11:51:28] <jthornton> I don't know about sane but yes I have the source code
[11:51:42] <Zaarin> lol
[11:52:11] <jthornton> I'm guessing at this point I need to use GladeVCP for this task
[11:54:00] <Zaarin> What are you trying to do exactly? Get your machine to sequentially cut multiple parts?
[11:55:10] <jthornton> different parts
[11:55:23] <jthornton> let me think how to word this...
[11:56:03] <jthornton> I have one main file that I need to pass the subroutine number to when it is ran
[11:56:05] <Zaarin> what CAD/CAM app are you using? I'm thinking wouldn't it be easier just to merge the two models together and just have an extruded cube abridging the two with merged vertices?
[11:56:29] <Zaarin> Are you cutting it off the same sheet?
[11:56:51] <jthornton> no, it is one fixture but different parts
[11:57:33] <Zaarin> You want to send me the two files and I'll abridge the two for you in Blender if you like then it's all one file you get around the problem of scripting and recompiling
[11:57:34] <Zaarin> ?
[11:58:00] <jthornton> I don't think we are talking about the same thing
[11:58:57] <jthornton> I want to have say a drop down box that lists the part subroutines and select one from the list. Then when I press run pass that subroutine number to the main file like a MDI command
[11:59:22] <Zaarin> Oh right you don't want to batch process, you want to selectively process
[11:59:30] <jthornton> yes
[12:00:02] <Zaarin> You want to go say Gear3m10mm bang it cuts, or you want to click M16A2receiverLeft click bang it cuts
[12:00:09] <jthornton> hmm maybe a mdi command...
[12:00:43] <jthornton> well yes select a file then it cuts 24 from the staging area one at a time
[12:01:05] <jthornton> I like your M16A2 example LOL
[12:01:33] <Zaarin> If you can't buy them, make them, they'll never take away the 2nd ammendmet, only thing stopping good ol USA from becoming a Crown colony
[12:02:22] <Zaarin> But yeah anyway, I'd still advise you to have a 3d model of 24 templates abridged into the same object with a totally enclosed mesh and then work on the coding
[12:03:04] <Zaarin> Just so the cuts are within the sheet area
[12:03:43] <jthornton> it's a pick and place with 24 staging spots and the machine loads a part into the mill like device and it mills it
[12:04:32] <jthornton> then unloads the part and puts it back in the staging area, gets a new one etc
[12:05:17] <jthornton> maybe ngcgui can solve this easy
[12:06:03] <Zaarin> Actually I'd have thought you could script this quite easily with python
[12:06:59] <jthornton> I could write a python script to read the directory and have a combo box with descriptions to pick from
[12:07:24] <archivist> needs building into gcode so one can read a sensor and decide which routine to run
[12:07:31] <Zaarin> Sure but how are you going to say cut the same file but start the head in a different place?
[12:07:52] <jthornton> I don't understand the question?
[12:08:10] <jthornton> the cutting is in one spot only
[12:08:35] <Zaarin> So you're cutting 24 different sheets of metal? Or 24 parts from the same sheet of metal?
[12:08:45] <jthornton> the subroutines in the main file load and unload the machine and then run the part program
[12:09:15] <Zaarin> Because say I make a cut that is 3 inch by 1 inch but I got a 4 foot by 6 foot sheet, you'll only have one cut in the top left corner done 24 times
[12:09:19] <jthornton> no, 24 parts loose and placed in nests on a pick and place
[12:09:30] <PetefromTn> Got a question guys.... Anyone have a linear bearing with some Thompson shaft running thru it?
[12:09:42] <jthornton> this is not done on a large sheet of material
[12:09:50] <PetefromTn> I am wondering if there is electrical contact between the shaft and the bearing housing..?
[12:10:01] <jthornton> bad idea
[12:10:18] <Zaarin> Are you changing the sheet of metal every time or is that process automated already?
[12:11:00] <jthornton> the parts are changed by the pick and place, the mill like machine mills a part then the pick and place changes it out
[12:11:04] <archivist> who said a sheet was involved
[12:11:14] <jthornton> Zaarin, did
[12:11:24] <archivist> I realise that :)
[12:11:28] <Zaarin> I only know 2 axis sorry :)
[12:11:32] <jthornton> I know
[12:12:05] <Zaarin> well 3 if you inclde the depth
[12:12:18] <jthornton> I will do it with ngcgui it is simple enough to use that
[12:12:24] <PetefromTn> I know that some of these housings are aluminum so I doubt that the bearings have any contact with the housing.
[12:12:47] <jthornton> bbl
[12:13:29] <Zaarin> Just a suggestion PetefromTn, disassemble the machine and where it bolts on, put a layer of PVC insulation tape between the washers and reassemble, take it or leave it but if you're sure it's arcing, it'll eliminate that problem
[12:13:35] <archivist> PetefromTn, using bearings for contact may not work well
[12:14:19] <PetefromTn> Guys this is not for a machine it is something else and I don't actually want contact I want it isolated for this application.'
[12:14:39] <jdh> I'd go with "maybe"
[12:14:39] <PetefromTn> I was hoping someone would have a linear bearing with a thompson shaft running thru it and a voltmeter handy..
[12:14:49] <jdh> I have some at home
[12:17:28] <PetefromTn> I figured someone here might have a machine or router build or something that used linear Thompson shafts and could do a quick check for me. Have not ordered them yet and the fact that they do or do not conduct electricity between the shaft and the bearing will determine the design parameters a bit.
[12:17:40] <jdh> lack of continuity on mine wouldn't really prove move much though
[12:18:06] <archivist> I would expect intermittent contact
[12:18:29] <PetefromTn> the concept I am using will work either way but it would be nice to know for sure. Of course not all linear bearings will be the same either.
[12:18:51] <PetefromTn> http://www.ebay.com/itm/4X-SBR16UU-16mm-Aluminum-Open-Linear-Router-Motion-Bearing-Shaft-Pillow-Blocks-/360783896193?pt=BI_Heavy_Equipment_Parts&hash=item5400655e81
[12:19:22] <archivist> I am not aware of any built in insulation as that would make them poor bearings
[12:19:50] <PetefromTn> this is a cutaway pillow block linear bearing and trying to look at it up close I don't really see any contact between the inner bearing sleeve and the plastic surround to the housing.
[12:20:21] <Zaarin> PetefromTn, lemme guess, you paid more in shipping and tax than you did for the part?
[12:20:23] <archivist> that plastic hold the balls
[12:20:43] <PetefromTn> yeah I know but I seriously doubt the balls contact the aluminum housing...
[12:20:51] <archivist> the balls are metal to metal
[12:21:09] <PetefromTn> Zaarin: Have not bought anything yet.
[12:21:09] <archivist> the bearing outer is metal
[12:21:38] <PetefromTn> Dunno...
[12:21:56] <archivist> the only possible insulation is the anodizing and grease
[12:22:00] <PetefromTn> I am sure the bearings must be metal to metal but I am unsure if there is an insulator housing in between.
[12:22:16] <Zaarin> Wouldn't you be better off with an all stainless steel linear bearing?
[12:22:37] <PetefromTn> Zaarin: How can you aske me that when you don't know the application LOL?
[12:23:55] <PetefromTn> Preferrably I would not want any electrical contact it would make the project easier but if there IS contact that is fine too just makes things more interesting designing it.
[12:24:13] <IchGuckLive> Zaarin: where in the world are you
[12:24:14] <Zaarin> Educated guess, you're building/modifying a custom made CNC machine and that is going to be used on some trapezoid thread and a stepper motor to go back and forth seemlessly, however looking at it, aluminium is a soft metal and plastic breaks easily, I'm just saying that linear shaft you ebay'd looks cheap, nasty and won't last
[12:24:55] <IchGuckLive> Zaarin: small and cheep http://foengarage.de/cnc4.jpg
[12:25:10] <PetefromTn> Zaarin: That is AMAZING man... I am not sure if it would be possible to be farther from what I am doing than you are there LOL...
[12:25:12] <IchGuckLive> homemade
[12:25:43] <Zaarin> not bad!
[12:25:45] <PetefromTn> IchGuckLive: You got a piece of linear thompson shaft with a linear bearing riding on it there with you?
[12:26:16] <IchGuckLive> the bearing is about 15USD in total in this mashine
[12:26:42] <PetefromTn> hehe is that a yes or no?
[12:27:05] <IchGuckLive> and it is now "WORKING" almost 2years at 4hr a day
[12:27:42] <IchGuckLive> standard china stuff
[12:27:50] <Zaarin> petefromTN, these will last a lifetime: http://www.stainlesslinearbearings.com/stainless_linear_slides.htm
[12:27:56] <Zaarin> much better quality
[12:28:15] <IchGuckLive> stainlew is crap
[12:28:15] <Zaarin> pricier tho
[12:28:19] <PetefromTn> Zaarin: Hey man thanks appreciate your help but trying to determine just one thing here..
[12:28:21] <jdh> pete: a few ohms on 3 sets of thompsons.
[12:28:32] <IchGuckLive> use standard ones SBR and you are done
[12:28:50] <IchGuckLive> or is it a Stone polish mashie that runs in water
[12:28:51] <PetefromTn> jdh: oh yeah ..
[12:29:31] <IchGuckLive> pete did you feel the snow today
[12:29:42] <PetefromTn> We got like five inches here.
[12:29:45] <IchGuckLive> ive seen lots of sliding cars on cnn
[12:30:05] <jdh> pete: check some 1.5" rails, .75" rails, some funky double rail thing
[12:30:07] <IchGuckLive> in atlanta they need some more grinders now
[12:30:08] <PetefromTn> We've seen a few here today with Welding gas bottles on them LOL...
[12:30:12] <jdh> err... checked.
[12:30:48] <PetefromTn> jdh: So the .75 rails with fully encapsulated bearings on them are closed circuit then?
[12:31:29] <PetefromTn> from shaft to bearing housing.
[12:31:47] <jdh> these were big pillow block bearings. from the shaft to the housing
[12:32:17] <jdh> but, now that I think about it... the shaft is not isolated from teh frame, neither is the bearing block.
[12:32:35] <jdh> so... no clue... they are installed on a machine
[12:32:38] <PetefromTn> Oh so we are measuring the whole frame then.
[12:32:49] <jdh> but, I do have some at home in a box
[12:34:00] <PetefromTn> Okay. Maybe when you get home you could give a quick check for me I appreciate it. thanks man.
[12:34:29] <jdh> yep
[12:35:55] <PetefromTn> Well I gotta get my ass back to work here. thanks guys.
[12:36:12] <Zaarin> np cyl
[13:21:45] <IchGuckLive> hi reksio1 how is the milling
[13:28:37] <IchGuckLive> im off its late and we got gold today
[14:07:48] <PetefromTn> Making Progress... Still needs some more deburring and finishing but looks decent whaddya guys think? http://imagebin.org/293145
[14:09:54] <Jymmm> Gawd that's fugly!!!
[14:10:08] <Jymmm> Oh, wait, should I look at the pic now?
[14:10:12] <PetefromTn> yup.
[14:10:36] <Jymmm> Beer holder?
[14:10:55] <Jymmm> shiny beer holder?
[14:11:09] <PetefromTn> ;)
[14:23:26] <Deejay> lol
[14:24:18] <eric_unterhausen> that looks dangerous, don't spin it
[14:27:12] <jdh> Pete: same results on unmounted thomsen rails/bearing blocks.
[14:28:21] <jdh> and Thomson for that matter...
[14:28:57] <Connor> jdh: Yea.. I confirmed on my mill.. made out of MDF.. conductive from shat all the way to the pillow block.
[14:29:14] <jdh> oh, well.. nevermind :)
[14:29:24] <PetefromTn> Thanks man I have been wondering.
[14:29:44] * jdh ponders an MDF mill.
[14:29:44] <PetefromTn> eric_unterhausen: Agreed... Looks like it'll take a finger off hehe
[14:29:58] <PetefromTn> It's an MDF router. hehe
[14:30:14] <jdh> unless you are selling them then they are mills
[14:30:26] <Connor> would make sense.. the housing is metal, the ball bearings run in a circuit inside the metal housing with a plastic retainer.. and run on the rod..
[14:30:44] <Connor> Sorry, my CNC Router made out of MDF.
[14:31:40] <jdh> my router linuxcncbox is not booting after all the power outages.
[14:32:00] <Connor> oh ho..
[14:32:12] <Connor> blown PSU ?
[14:32:17] <jdh> disk not found... hope I stashed a copy of the config somehwere
[14:32:24] <Connor> Oh.
[14:32:42] <Connor> This the fireball v90 box ?
[14:32:54] <jdh> nah, semi-homemade hdpe thing
[14:33:05] <Connor> you still have the v90?
[14:33:09] <jdh> never had one
[14:33:17] <Connor> I thought you did...
[14:33:35] <jdh> nope, just my plasticy thing.
[14:34:04] <jdh> I'm going to buy a chinese one when it warms up enough
[14:34:23] <Connor> I like my little router.. I would love to convert it to alumn.
[14:35:47] <jdh> mine's pretty lame, but it works ok for plastics
[14:36:00] <Connor> Who the heck had the v90 then....
[14:36:20] <Connor> maybe it was someone from the 3dprinter group that had one...
[14:47:19] <Connor> OKay, it was os1r1s who had it..
[14:56:44] <JT-Shop> yikes, I uninstalled the buildbot master and now I forgot how to put 2.5 back on this computer
[15:15:02] <PetefromTn> WTG...
[15:17:27] <JT-Shop> momentary loss of memory
[15:17:43] <PetefromTn> I love my little 50kRpm pencil die grinder...
[15:17:54] <JT-Shop> sidetracked by splitting the tracks on the crawler and taking the front idler out
[15:18:16] <PetefromTn> Makes poslishing the tiny nooks and crannies a little less cumbersome.
[15:18:23] <PetefromTn> JT-Shop: What kinda crawler?
[15:18:32] <JT-Shop> JD350
[15:18:37] <JT-Shop> crawler/dozer
[15:19:25] <JT-Shop> you could get them as a loader or dozer
[15:19:27] <Jymmm> aka, Shop-cleaner-upper
[15:19:27] <PetefromTn> Like a skid steer on steroids..
[15:19:27] <JT-Shop> lol yea
[15:19:39] <JT-Shop> http://www.gnipsel.com/images/JD350B/350-10pre.jpg
[15:21:58] <PetefromTn> Tons O fun.
[15:22:41] <PetefromTn> Well apparently my ER32 collet wrench will be here today. Need that bastard to lock down my new holders.
[15:23:37] <JT-Shop> yea, 6 tons of fun
[15:26:08] <PetefromTn> jeez... Expensive toys man.
[15:28:07] <JT-Shop> I have a lot of dirt work to do on my property so cheaper to buy one do the work then sell it
[15:39:45] <PetefromTn> Yeah probably would be those things are expensive to rent like $150.00 a day plus diesel etc.
[15:42:53] <Tom_itx> PetefromTn use ceramic bearings for your non contact issue
[15:44:20] <PetefromTn> Tom_itx: Meh we are going to use these linear bearings import from ebay due to cost as the application is not that critical. The design can be changed if there is contact to work around it and we are already talking alternatives that would be simple to machine.
[15:44:58] <Tom_itx> JT-Shop slap some paint on it when you're done and turn a profit on it
[16:17:35] <Deejay> gn8
[17:49:44] <PetefromTn> Well this place is dead today hehe
[17:51:04] <JT-Shop> $60 - $100 an hour to rent one
[18:01:34] <PetefromTn> to rent what?
[18:05:43] <Tom_itx> dozer
[18:06:27] <PetefromTn> aah.
[18:07:09] <Tom_itx> doubt you're gonna get a D-10 for that
[18:25:17] <zeeshan> jdh: are you running 22gauge for your control wiring?
[20:08:19] <os1r1s> Connor: I have one
[20:11:05] <os1r1s> Connor: Did you need something related to a v90?
[20:11:36] <jdh> how is it?
[20:26:42] <os1r1s> jdh: Its works fine for a router
[20:26:54] <os1r1s> It rips the hell out of wood/plastic
[20:29:20] <jdh> is that a good thing?
[20:31:37] <os1r1s> jdh: Yeah. Its very fast at milling wood/plastic. No issues with it whatsoever. Fast rapids. Good precision
[20:31:37] <os1r1s> I won't use it for PCBs or metal, but thats personal choice
[20:33:28] <jdh> someone was looking for info on one the other day
[20:36:26] <PetefromTn> Man I just found out that the guy I was going to be doing some work for on the mill will not be needing parts for another month or so. Kinda was hoping that I could do some work for him sooner but it is what it is.
[20:43:41] <CaptHindsight> we actually made it above freezing today
[20:44:36] <Tom_itx> gonna be near 60 by the weekend
[20:46:18] <PetefromTn> We got like five inches of snow.
[20:50:42] <Tom_itx> you gettin your tool changer sorted out?
[20:51:53] <PetefromTn> Me?
[20:52:12] <Tom_itx> uh huh
[20:54:01] <PetefromTn> Not right now, I am drawing another part I need to machine. I do have a fellow sending me a part that he wants me to reproduce and it looks interesting. Same guy I machined this wheel for.
[20:55:20] <PetefromTn> Also working on this little drawing for something for the machine working with Connor on it LOL.
[21:18:26] <zeeshan> jdh: wake up!!
[21:18:26] <zeeshan> ;D
[21:18:39] <jdh> ?
[21:19:05] <zeeshan> what gauge wire are you running for your control side wiring?
[21:19:23] <jdh> 18-22
[21:19:28] <zeeshan> i ended up buying 22 awg 4 conductor, and 2 conductor
[21:19:45] <zeeshan> the price difference was 60 cents for 20 m long spool for shielded vs unshielded lol
[21:19:48] <zeeshan> why 18?
[21:19:59] <jdh> because I had some
[21:20:14] <zeeshan> 22awg looks kinda tiny.. apparently it can handle 5 amps?
[21:20:23] <jdh> I wouldn't do 5 amps
[21:20:37] <zeeshan> looks safe to handly 1-1.5 amp at most
[21:20:41] <zeeshan> *handle
[21:21:10] <jdh> I have lots of wire of various sizes and colors...sometimes color is important. sometimes having a piece laying there is.
[21:21:15] <zeeshan> hah
[21:21:29] <zeeshan> well the standard shielded cable with cover comes in black red yellow white
[21:21:33] <zeeshan> and the 2c is black and white
[21:21:46] <zeeshan> but since it'll have its own grey cover, ill just label
[21:22:11] <zeeshan> jdh you don't think i can get the c6 running with linuxcnc?
[21:22:21] <jdh> you could be the one!
[21:22:23] <zeeshan> haha
[21:22:34] <zeeshan> i really don't want to waste a lot of time wiring it in just to have it fail
[21:22:46] <jdh> the pwm one has mostly teh same wires.
[21:22:47] <zeeshan> i hope the pwm version has the same bolt pattern
[21:23:07] <zeeshan> and i know what you meant earlier about cnc4pc cards
[21:23:15] <zeeshan> you can clearly see the mounting holes have been hand drilled
[21:23:19] <zeeshan> so they're in slightly different positions
[21:23:26] <zeeshan> in comparison to the drawing
[21:23:58] <zeeshan> im about to get started on mounting the pcbs =d
[21:25:48] <jdh> I think connor tried that card?
[21:26:11] <zeeshan> hopefully he can help
[21:26:15] <zeeshan> man im going through the stuff i bought
[21:26:20] <zeeshan> i knew i was forgetting something :{
[21:26:24] <zeeshan> i forgot the cable tie mounts. fuck.
[21:54:34] <Connor> what card?
[21:55:33] <Connor> Speed control card? I had issues with the C6, swapped it out for the C41. PWM Better.
[21:57:11] <Connor> os1r1s: Someone asked about one a few weeks ago.. and I remembered someone in this channel had it.. thought it was jdh till I remembered that they were in the makergear channel also.. checked my logs and found it was you. :)
[21:57:28] <os1r1s> haha
[21:57:30] <os1r1s> Long ago
[21:57:40] <os1r1s> I haven't been in that channel in quite a while
[21:57:48] <Connor> Yes.. very long ago.. and you was saying you got it for PCB work, but, didn't work very well for it.. I think..
[21:57:52] <Connor> me either.
[21:58:18] <Connor> Also thought you said your were thinking of selling it...
[22:01:03] <os1r1s> I debated on it, but never did
[22:01:13] <os1r1s> Now I've added a bit more to it
[22:01:32] <os1r1s> So it is very unlikely I will sell
[22:01:34] <Connor> You may have been the one who told me about the g0704, I was looking for a small mill at the time..
[22:02:03] <Connor> I'm glad that's the one I got.. the Mini Mill sucks.
[22:02:25] <os1r1s> Prolly wasn't me. I use a Taig for cutting metal
[22:02:32] <Connor> Hmm..
[22:02:33] <Connor> okay.
[22:02:56] <Connor> Was a toss between the mini, G0704, and the S3
[22:03:00] <Connor> err X3
[22:03:10] <jdh> or sx3
[22:03:35] <Connor> I think that one was out of price range.
[22:03:49] <jdh> yeah, and all the good parts get tossed for cnc
[22:04:26] <Connor> You seen all of Hoss's 3D prints of all the different sized Mills ?
[22:04:35] <jdh> nope
[22:04:41] <Connor> He just did the Tormach 1100, damn that thing is bigger than I thought.
[22:04:48] <jdh> where are they?
[22:05:19] <Connor> http://www.youtube.com/watch?v=ewKmAgR7oWE
[22:05:23] <os1r1s> Connor: I'd like a tormach
[22:05:36] <Connor> I would too.. but, based on the size.. I wouldn't have room.
[22:05:46] <Connor> http://www.cnczone.com/forums/attachments/benchtop_machines/223634d1392313815t-hosss_g0704-100_4971_cropped_1000x510.jpg
[22:05:51] <Connor> http://www.cnczone.com/forums/attachments/benchtop_machines/223636d1392313815t-hosss_g0704-100_4973_cropped_1000x599.jpg
[22:05:56] <Connor> http://www.cnczone.com/forums/attachments/benchtop_machines/223638d1392313815t-hosss_g0704-100_4977_cropped_1000x430.jpg
[22:08:42] <Connor> He's getting some good prints..
[22:08:51] <jdh> that looks like a lot of work.
[22:09:04] <Connor> He has nothing but time..
[22:10:08] <jdh> heh, his g0704 model is pretty cool
[22:11:01] <jdh> geez... he's up to 445 vids
[22:13:35] <PetefromTn> who?
[22:13:42] <jdh> hoss
[22:13:53] <PetefromTn> aw jeez.
[23:37:19] <jesseg> Howdy Folks!
[23:37:57] <jesseg> So an arc -- is 0 degrees of starting angle mean that it's X=1,Y=0, or X=0,Y=1 ?