#linuxcnc | Logs for 2012-04-24

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[00:17:46] -!- cylly2 [cylly2!cylly@p54B1238D.dip.t-dialin.net] has joined #linuxcnc
[00:19:18] <ReadError> hey alex4nder
[00:19:20] <ReadError> you around?
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[00:42:46] <andypugh> Night all
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[00:45:18] <jdhnc> any cheap sources for narrow panduit style wire ducts?
[00:54:21] <Tom_itx> doesn't appear cheap
[00:55:12] <jdhnc> $11/m for thin stuff
[00:55:32] <jdhnc> $19 from mcmaster
[00:56:08] <Tom_itx> http://www.electriduct.com/Cable-Raceways-Wire-Duct.html
[00:56:11] <Tom_itx> what kind?
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[00:57:04] <jdhnc> I was looking at .5x1.0 but 1x1 would be ok
[00:58:00] <Jymmm> jdhnc: self adhesive cable tie mounts
[00:58:20] <jdhnc> stick-ons never stick well, unless you want to remove them.
[00:58:43] <Jymmm> jdhnc: thats whay there is a screw hole in the middle, just grab some self tapping screws
[00:59:36] <Jymmm> jdhnc: you did say cheap now
[01:00:34] <Jymmm> cheaper would be to drill two holes and run cables ties thru them
[01:00:47] <Jymmm> cheaper yet... hot glue gun =)
[01:00:49] <jdhnc> cheaper would be use dental floss from the dentist
[01:01:04] <Tom_itx> yeah wind your own looms
[01:01:15] <Jymmm> yeah, waxed string harnesses are not uncommon
[01:01:21] <Jymmm> used a LOT in aviation
[01:01:28] <Jymmm> way back when
[01:01:39] <Tom_itx> i know
[01:01:46] <Jymmm> I have a roll of the stuff still
[01:01:59] <Tom_itx> maybe you should offer some to jdhnc
[01:02:06] <Jymmm> jdhnc: get the mint flavored though
[01:02:40] <Jymmm> $1 at dollar strore for 150 yards
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[01:16:48] <r00t4rd3d> http://www.ebay.com/itm/50ft-PINK-3-8-WIRE-LOOM-SPLIT-CONVOLUTED-TUBING-/150743865910?pt=LH_DefaultDomain_0&hash=item231908da36
[01:16:52] <r00t4rd3d> use that wire loom
[01:17:12] <r00t4rd3d> its in your color too!
[01:17:33] <Jymmm> No way, it's a PITA. I'd use spiral wrap before split loom tubing
[01:17:43] <jdhnc> I can get 10ft for $13, plus $10.55 shipping
[01:17:48] <Jymmm> oh hey, jdhnc that's an idea spiral wrap
[01:18:11] <jdhnc> I have lots of spiral wrap. It's a pain so I rarely use it.
[01:18:22] <jdhnc> but, it would work for this
[01:18:37] <Jymmm> yeah, mostly for harnesses
[01:18:58] <Jymmm> I have 2" panduit too
[01:19:15] <Jymmm> you want 1" I think
[01:19:25] <jdhnc> or .5"
[01:19:31] <jdhnc> we have tons of 2&3" at work
[01:19:32] <Jymmm> no you dont
[01:19:40] <Jymmm> youdont want 1/2"
[01:19:51] <jdhnc> it looks good in the drawing.
[01:19:52] <Jymmm> worse than spiral wrap at that small
[01:20:02] <Jymmm> lol, EVERYTHING looks good in the drawings
[01:20:17] <r00t4rd3d> u dont
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[01:20:41] <Jymmm> No, I look damn good in a tux though =)
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[01:22:49] <Jymmm> pink tubing, but no pink tape
[01:22:59] <Jymmm> nor pink cable ties
[01:25:01] <r00t4rd3d> http://imgur.com/a/yBVvz
[01:25:09] <r00t4rd3d> all my latest pics :)
[01:26:03] <jdhnc> cool.
[01:26:08] <Jymmm> Um, what are you going to use to support he gantry?
[01:26:27] <jdhnc> any reason for/against putting the metal on the bottom instead of the top?
[01:26:57] <r00t4rd3d> looks cool
[01:27:09] <Jymmm> reduces table surface area
[01:27:26] <Jymmm> metal on top that is
[01:28:13] <r00t4rd3d> the gantry is pretty solid
[01:28:37] <Jymmm> put a paint can on one end
[01:29:09] <r00t4rd3d> for what
[01:29:21] <Jymmm> for whatever
[01:31:45] <jdhnc> 20ft for $32. shipped. But I really only need a few feet.
[01:31:51] <Jymmm> After thinking about it, instead of 1/4" bar, I think I would have used 1/8" wall aluminum angle instead
[01:32:15] <Jymmm> but those blocks dont accomidate that
[01:32:41] <r00t4rd3d> you think my gantry needs more support?
[01:32:59] <r00t4rd3d> i can raise my bars and put another on the inside.
[01:33:03] <r00t4rd3d> another carriage
[01:33:06] <Jymmm> I think the uprigth part does, looks liek it'll fall over.
[01:33:10] <Jymmm> But...
[01:33:35] <Jymmm> the 1/4" bars seem overkill without adding anti-bowing benefits, where angle channel would
[01:33:51] <Jymmm> maybe Z channel, but hard to find
[01:34:04] <jdhnc> you could spread out the bearings a few inches
[01:34:20] <Jymmm> jdhnc: no, he can't. they're fixed
[01:34:29] <jdhnc> oh
[01:34:50] <Jymmm> I'd have prefered at leaast 8" inbetween the bearings myself
[01:35:13] <jdhnc> how about two 1/16" angle bars along the bottom (1/4 width in or so from each side)
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[01:35:22] <jdhnc> he can do that for rev2
[01:35:31] <Jymmm> r00t4rd3d: I think you're table is going to bow over time, you might want to keep an eye on that
[01:36:11] <Jymmm> jdhnc: 1/16" wall by 1/2" angel would do nicely
[01:36:12] <r00t4rd3d> the mdf is basically going to be for testing and a pattern
[01:36:40] <Jymmm> r00t4rd3d: it doens't have to be. MDF is fine, but you have no real support for it.
[01:37:11] <r00t4rd3d> i have steel i beams under it
[01:39:26] <Jymmm> bolted to the MDF ?
[01:39:26] <r00t4rd3d> lol jk
[01:39:26] <Jymmm> r00t4rd3d: when your table gets to one end, it's gonna put a LOT of stress on those bearings and the upper gantry
[01:39:26] <Jymmm> you are going to have to beef up the gantry from tipping over
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[01:39:26] <r00t4rd3d> i might just buy the 9" carriages
[01:39:26] <Jymmm> You've basically created a teeter-totter
[01:39:26] <r00t4rd3d> right now i have the 4.5 ones
[01:39:26] <Jymmm> r00t4rd3d: can you exchange them?
[01:39:40] <r00t4rd3d> ill use the 4.5 on my z
[01:39:46] <Jymmm> ah, ok
[01:39:52] <Jymmm> that sounds good
[01:39:57] <Jymmm> do they have 12" ?
[01:40:05] <r00t4rd3d> I do but they dont
[01:40:07] <Jymmm> or maybe even cut them in haf
[01:40:13] <Jymmm> half
[01:40:47] <r00t4rd3d> ive seen larger machines using these carriages though
[01:40:59] <r00t4rd3d> with normal sized routers
[01:41:04] <r00t4rd3d> and metal parts
[01:41:07] <Jymmm> r00t4rd3d: Mind you, I'm not bagging on what you have done or anything, just telling you what I see is all.
[01:41:21] <Jymmm> r00t4rd3d: take it for what you've paid for it =)
[01:41:46] <Jymmm> grain of salt and all that
[01:42:42] <Jymmm> r00t4rd3d: Also, keep in mind how you are goign to run the cabling to each axis
[01:42:58] <Jymmm> then you can pre-drill holes as needed in advance
[01:43:20] <Jymmm> MDF taps GREAT in it's surface, NEVER tap MDF on the edges though.
[01:44:08] <Jymmm> or you'll just have MDF camel toe
[01:44:12] <r00t4rd3d> i just used 4" screws
[01:44:17] <r00t4rd3d> i didnt tap anything
[01:44:30] <Jymmm> I'm saying you CAN if you want/need to
[01:44:35] <r00t4rd3d> oh okay
[01:45:07] <Jymmm> Like if oyu need one side to be nut free, and screw in a a cable clamp on the flip side
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[01:45:38] <Jymmm> aka a blind tapped hole
[01:46:39] <FinboySlick> Jymmm: Is that a blind date that goes well? (you can push the rimshot button again)
[01:47:18] <Jymmm> FinboySlick: somethign like that =)
[01:47:48] <Jymmm> r00t4rd3d: Oh, 2 coats of PU doesn't hurt MDF either
[01:48:13] <FinboySlick> Gotta make up for my uselessness around here. Won't take too long before I'll be able to charge you for shutting up ;)
[01:49:00] <Jymmm> FinboySlick: NO CREDIT, CASH ONLY
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[01:51:16] <jdhnc> chrome sucks for pdf viewing
[01:51:50] <FinboySlick> I think opening pdf in a browser is always a bad idea.
[01:52:14] <FinboySlick> Almost as bad as opening it in an Adobe product.
[01:53:48] <r00t4rd3d> pu?
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[01:55:06] <r00t4rd3d> polyurethane?
[01:55:50] <r00t4rd3d> i was thinking more of an epoxy based substance
[01:56:05] <r00t4rd3d> like glue
[01:57:17] <jdhnc> two-part epoxy paint
[01:57:28] <r00t4rd3d> yea
[01:57:57] <r00t4rd3d> they make epoxy spray paint too
[01:58:13] <jdhnc> one part epoxy?
[02:00:32] <r00t4rd3d> yeah, its magic
[02:00:32] <r00t4rd3d> i used some on some ammo cans, worked well
[02:00:32] <r00t4rd3d> they sell it at lowes
[02:00:32] <r00t4rd3d> and other fine hardware stores
[02:01:11] <jdhnc> pcw?
[02:01:14] <ThadiusB> hello everyone
[02:02:55] <Valen> r00t4rd3d: what name?
[02:06:20] <pcw_home> ?
[02:08:12] <r00t4rd3d> what name of what
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[02:10:45] <ReadError> hmm
[02:10:51] <ReadError> how exactly should a z axis be set
[02:10:59] <ReadError> i know joe9s had like negatives and such
[02:11:05] <ReadError> but all my others are positive
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[02:12:24] <r00t4rd3d> thats why i am going to use limit switches
[02:12:58] <djdelorie> ReadError: Z's positive direction should be "up"
[02:13:31] <djdelorie> and typically the zero location is at the highest point, so if you accidentally go to (0,0,0) you don't crash the tool
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[02:20:41] <ReadError> i need switches
[02:20:45] <ReadError> such a PITA homing
[02:20:47] <ReadError> then doing touchoff
[02:25:40] <ReadError> think im getting it figured out
[02:25:51] <ReadError> launch, home axis relative to what i set them as
[02:25:55] <ReadError> set
[02:26:07] <ReadError> go to touch off point, set
[02:26:09] <ReadError> run
[02:26:59] <djdelorie> repeat last two for each piece, yes
[02:27:23] <ReadError> but
[02:27:34] <ReadError> i had an issue where it was saying my negative wasnt right
[02:27:35] <ReadError> on the z
[02:27:39] <ReadError> so i need to work on that
[02:27:48] <ReadError> mechanically its fine, just gotta get it configured
[02:28:21] <djdelorie> keep in mind that negative numbers are LESS THAN zero, so your MIN will be negative and your MAX zero
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[02:28:45] <ReadError> 0 would be the highest point then correct?
[02:28:50] <djdelorie> yes
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[03:00:17] <Jymmm> Heh, Z0 is top of material/table to me =)
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[04:02:48] <joe9> i am looking to have 3 holes (to use with dowel pins) in my fixture to help with alignment when I move from front to the back. Any suggestions on what is a good size for such holes?
[04:02:56] <joe9> I do not have any dowel pins lying around.
[04:03:13] <joe9> so, would have to buy them. not sure what is a common size which is good to have around.
[04:03:19] <joe9> any thoughts, please?
[04:03:54] <FinboySlick> joe9: You can typically buy sets that have a bunch of standard sizes.
[04:04:11] <joe9> i checked HarborFreight and they did not have any.
[04:05:46] <FinboySlick> joe9: http://www.fastenal.com/web/products/detail.ex?sku=7041073 Something like this might suit you, though that's probably expensive if you never plan to use more than one or two.
[04:05:47] <joe9> FinboySlick: any recommendations, please? http://www.mcmaster.com/#alignment-dowels/=h8ma6s
[04:06:52] <FinboySlick> http://www.fastenal.com/web/products/detail.ex?sku=11101605 is cheaper.
[04:06:59] <FinboySlick> For a lot more pins.
[04:08:58] <FinboySlick> joe9: I think they're canadian but if they ship to the US, keep them in mind, they're a pretty decent alternative to mcmaster for some stuff.
[04:09:24] <joe9> FinboySlick: thanks a lot. will check up on them.
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[04:10:10] <FinboySlick> joe9: They sell milling cutters too and what not. But keep in mind that they're probably more expensive than you should pay ;)
[04:10:13] <djdelorie> joe9: wire is plentiful and fairly reliable
[04:10:33] <joe9> djdelorie: what do you mean by wire?
[04:10:45] <djdelorie> standard hookup wire - 22 ga solid
[04:10:47] <djdelorie> for example
[04:10:54] <FinboySlick> coathanger ;)
[04:11:09] <joe9> djdelorie: oh, really. you can use that for alignment?
[04:11:13] <joe9> djdelorie: cool,
[04:11:21] <joe9> djdelorie: did not think about it. but that is a good idea.
[04:11:30] <joe9> djdelorie: thanks. will check up on it.
[04:11:36] <FinboySlick> Well, depending on your setup (I wasn't following), it can give you pretty decent results (considering the price).
[04:11:53] <djdelorie> the pcb will be flat against the table, right? So there's no stress on the wire, it's just there to line up the board to existing holes while you clamp it down
[04:11:56] <FinboySlick> I'd make sure I have a way to *check* the result before I trust it though.
[04:12:50] <joe9> djdelorie: yes, there should not be any stress on the wire.
[04:12:58] <joe9> FinboySlick: ok, thanks. will do.
[04:13:17] <FinboySlick> for pcb it's no biggie.
[04:13:37] <FinboySlick> If you were trying to mill a reference block on two sides and using pins to line it up, I'd be more worried.
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[04:14:17] <djdelorie> once it's clamped, take out the wires and use MDI to jog to the holes to check
[04:14:58] <FinboySlick> joe9: Do you have a broken CD or DVD drive?
[04:16:07] <FinboySlick> You might get lucky with a diskette drive too.
[04:16:26] <FinboySlick> They often use fairly accurate steel rods as rails for the read head.
[04:16:52] <joe9> FinboySlick: thanks for that idea. I have a few diskette drives lying around.
[04:17:35] <FinboySlick> The ones I have here are hardened so you might need some sort of grinding implement to cut them right.
[04:17:49] <djdelorie> stright pins and broken drill bits work too
[04:17:53] <djdelorie> straight
[04:18:42] <FinboySlick> The nice thing with the rails is that they're mirror smooth.
[04:19:26] <joe9> FinboySlick: how many rails does each drive have?
[04:19:45] <joe9> that I can use? will I get one or 2 or .. pins out of each.
[04:20:20] <FinboySlick> One or two, depending on the cd/dvd drive. But they're about 4" long.
[04:20:47] <joe9> oh, ok, thanks.
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[04:21:36] <FinboySlick> Plus you get a cool laser.
[04:21:59] <FinboySlick> And a little stepper to make a micro-tiny mill.
[04:22:14] <FinboySlick> For cockroach tooling.
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[04:23:36] <djdelorie> and a tiny bldc motor :-)
[04:23:48] <FinboySlick> Spindle!
[04:24:14] <FinboySlick> Now good luck coming up with a collet/chuck.
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[04:25:09] <djdelorie> just needs a 0.125" hole with a set screw :-)
[04:26:03] <djdelorie> (yeah right)
[04:26:52] <alex4nder> hey
[04:27:13] <FinboySlick> Actually, a micro-tiny lathe might be more fun with CD drive parts.
[04:28:15] <djdelorie> three CD/DVD drives gives you enough stuff to make a jewelry engraver...
[04:29:25] <FinboySlick> Well, bedtime for me.
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[05:04:15] <Connor> Hey guys, need some advise on how to wire in my charge pump on my setup.
[05:05:15] <Connor> I have a C10 BOB, the charge pump and 3 5056 drivers, along with a C41 PWM based speed controller.
[05:06:37] <Connor> When I booted up just a few min ago, the spindle came alive without EMC being on, which is really not cool.
[05:16:27] <Jymmm> what is a "C10 BOB" ?
[05:16:35] <Connor> C10 Break out Board
[05:16:44] <Jymmm> what is "C10"
[05:16:54] <Connor> CNC4PC model number for the BOB
[05:17:08] <Jymmm> and we know that why?
[05:17:25] <Jymmm> and "5056"?
[05:17:37] <Jymmm> and "C41" ?
[05:17:59] <Connor> I thought it was pretty common part among CNC. 5056 is the Keling Stepper Drivers, and the C41 is the speed controller.
[05:18:08] <Connor> http://www.cnc4pc.com/Store/osc/product_info.php?cPath=33&products_id=45 <- C10
[05:18:22] <Connor> http://www.cnc4pc.com/Store/osc/product_info.php?cPath=25&products_id=303 <- C41
[05:18:38] <Connor> http://www.cnc4pc.com/Store/osc/product_info.php?cPath=23&products_id=51 <- C4 Charge Pump
[05:19:19] <Jymmm> I think we looked at cnc4c stuff once a long time ago, and just kept looking.
[05:19:32] <Connor> who is "we"
[05:19:41] <Jymmm> a couple of us on here
[05:20:49] <Connor> *shrug*
[05:21:18] <Connor> I have it all working.. except I'm not sure how to wire the Charge pump in..
[05:21:31] <Connor> well... the better way of saying that, is WERE to wire it in at.
[05:21:39] <Jymmm> if you had that chargepump connected and sindle turned on during power up of the pc. either 1) you wired it wrong, or 2) it's defective.
[05:22:03] <Connor> No. I didn't at the time, that's why I want to wire it in. :)
[05:22:38] <Jymmm> do you even have a mechancal estop setup yet?
[05:22:51] <Connor> not for the steppers, their is one on the spindle.
[05:23:11] <Jymmm> and the difference being?
[05:23:35] <Connor> that it's strictly wired into the spindle.
[05:23:45] <Jymmm> it's not a selective estop, it's an estop... EMERGENCY STOP, as in STOP EVERYTHING, NOW!
[05:23:47] <Connor> it's factory installed in the mill
[05:23:52] <Jymmm> so?
[05:24:25] <Jymmm> if the table is about to crush your fingers, do you want the BRB (big red button) to save you?
[05:25:12] <Jymmm> it's ESTOP, not an "oh shit I made a mistake stop"
[05:25:24] <Jymmm> bbiab
[05:25:32] <Connor> Dude, I know. I'm not their yet. I'm still in the middle of the conversion.
[05:26:55] <Connor> I was saying that the mill was manual, had a E-Stop for the spindle. It's not wired into anything but the spindle.. and most likely will have the Big Red Button taken off and be used as push to start push to stop for the spindle. and a bigger E-Stop button placed else were.. most likely in series with the charge pump, AFTER I figure out were to hook the charge pump up.
[05:27:53] <toastydeath> I've only worked on one manual machine that had a legit estop for the table
[05:28:02] <toastydeath> and that didn't brake the spindle it only turned it off
[05:30:35] <Connor> I don't think it applies breaks to the spindle.. but it slows down pretty quick. but, that's all another subject.. I was just trying to get advise on were to wire the charge pump at.
[05:31:20] <Connor> disable the BOB, which kills all the signals to the machine.. etc etc..
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[06:00:53] <Jymmm> SWPadnos: hey
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[06:03:11] <Jymmm> Connor: a chargepump is added to the physical ESTOP chain
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[06:06:12] <Jymmm> Connor: Think if having a fire alarm on your home. Then you build an addition to your home, and extend the alarm system to cover the new area, the extended part is the chargepump
[06:06:29] <Jymmm> and the original alarm system being the estop chain
[06:07:26] <Jymmm> Connor: you also have to decided what you want it to do when the computer crashes of loses power.
[06:07:49] <Jymmm> if the pc comes back up, do you want it to turn back on?
[06:08:24] <Jymmm> this is where a safety relay comes into play as a main part of the physical estop chain.
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[07:01:46] <DJ9DJ> moin
[07:01:58] <DJ9DJ> Hola Jymmm
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[09:33:14] <Loetmichel> mornin
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[10:14:46] <awallin> hm new i7 processors on the way... must resist upgrade... must...
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[11:45:46] <ReadError> hey
[11:46:01] <ReadError> whats some good endmills (generic) for aluminum and plastics
[11:46:06] <ReadError> for just general cutting
[11:46:45] <jthornton> any with a razor sharp edge will work
[11:47:38] <jthornton> I don't know what you mean by generic
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[12:10:30] <r00t4rd3d> cheap
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[12:12:58] <awallin> ReadError: http://www.ctctools.biz ?
[12:13:45] <jthornton> cheap and good don't go in the same sentence
[12:14:38] <ReadError> like
[12:14:43] <ReadError> something decent
[12:14:48] <ReadError> from amazon
[12:14:56] <ReadError> i ordered a magenetic base + dial indicator
[12:18:03] <Jymmm> There is only ONE for plastic, which also does aluminum too... http://www.plasticrouting.com/
[12:19:35] <Jymmm> Is mineral spirits the same as mineral oil ?
[12:19:51] <jdhnc> not even close.
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[12:25:49] <Valen> good cutters for plastic are quite different to metals
[12:25:57] <Valen> I wouldn't use a plastic cutter on Al
[12:26:04] <Valen> it wont be a plastic cutter after
[12:29:45] <Valen> you can use an Al cutter on plastic, but the finish probably won't be as good
[12:31:31] <Jymmm> Valen: The geometry of onsrud cutters it completely different than typically tooling
[12:31:47] <Valen> onsrud?
[12:32:04] <Jymmm> Valen: the thing youve been commenting about
[12:32:41] <Valen> fairynuff
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[12:43:24] <Jymmm> Valen: http://www.plasticrouting.com/Van.asp
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[13:09:31] <ReadError> http://i.imgur.com/OFAo8.png
[13:09:43] <ReadError> i set z to -5.5 - 0
[13:09:49] <ReadError> home -4
[13:09:57] <ReadError> but it shows it below the work piece ?
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[13:11:07] <DJ9DJ> for my linuxcnc, positive z-values are up...
[13:11:22] <jthornton> yep Z-4 is below the work
[13:11:23] <DJ9DJ> and negative values are below the surface of the work piece...
[13:11:33] <DJ9DJ> so i think its okay
[13:15:23] <joe9> what should the size of the hole be to allow a #10-32 screw to pass through (with close clearance)? I found this article, but, it appears suspicious, hence wanted to check: http://en.wikipedia.org/wiki/Drill_and_tap_size_chart
[13:15:59] <jdhnc> what looks suspicious?
[13:16:52] <DJ9DJ> for non-imperial people... what does #10-32 mean? what do these numbers stand for?
[13:17:06] <jdhnc> #10 size, 32 threads per inch
[13:17:24] <DJ9DJ> 10 what?
[13:17:39] <jdhnc> 10 being less than 12 and bigger than 8
[13:17:43] <archivist> just a number
[13:17:46] <DJ9DJ> lol
[13:17:47] <DJ9DJ> okay ;)
[13:17:55] <DJ9DJ> thats crazy
[13:18:00] <Tom_itx> what does m2 mean???
[13:18:05] <jdhnc> there are crazier
[13:18:06] <Valen> Metric 2MM
[13:18:13] <Tom_itx> :)
[13:18:13] <jdhnc> how about '12 gauge'
[13:18:21] <Tom_itx> that's a shotgun
[13:18:27] <DJ9DJ> m2 is straight forward compared to #10 ;)
[13:18:28] <jdhnc> sure, but it has units
[13:18:30] <Valen> #10 is probably related to how many grains of rice will fit in it or something
[13:18:30] <archivist> which gauge are you referring too
[13:18:45] <jdhnc> shotgun in this case.
[13:19:00] <jdhnc> it at least makes (bad) sense.
[13:19:18] <DJ9DJ> hm
[13:19:43] <Tom_itx> jdhnc well there are gages for wire and sheet
[13:20:08] <jdhnc> sure
[13:21:05] <Tom_itx> 12 gage steel is .105", stainless is .109 and 12 gage wire is .0807"
[13:21:19] <jdhnc> of course.
[13:21:38] <DJ9DJ> lol
[13:21:54] <jdhnc> and a 12 gauge shotgun bore is about 0.729"
[13:22:09] <jdhnc> or, a sphere of 1/12 lb of lead
[13:23:32] <Jymmm> 12ga aluminum is .0808
[13:24:11] <Tom_itx> machine screws are numbered below 1/4" starting with 0-80 which takes a 3/64
[13:24:13] <Tom_itx> drill
[13:24:18] <ReadError> joe9: on your config, the 1st value for Z is -6 ?
[13:24:22] <ReadError> -6 and 0
[13:24:26] <Tom_itx> going up to a #14 screw
[13:24:35] <Tom_itx> then it switches to fractions
[13:24:45] <Tom_itx> confused?
[13:25:38] <jdhnc> I don't think I've ever seen a #14
[13:25:54] <Tom_itx> it's probably not that common
[13:26:01] <Tom_itx> neither is an 0-80
[13:26:42] <jdhnc> neve seen a 1 or 0 either
[13:26:49] <joe9> jdhnc: so, it is just a #10 gauge. If I have 10 gauge hole (in imperial), I should be good.
[13:26:51] <skunkworks> http://www.youtube.com/watch?v=zORLFMsDy5A
[13:27:20] <joe9> ReadError: yes, the travel of Z-axis is 6 inches. and it goes from 0 (top) to -6 (bottom).
[13:27:32] <jdhnc> joe9: tight is usually tight. Why so tight?
[13:27:37] <joe9> and my home is -0.5 inches on Z, iirc.
[13:28:01] <joe9> jdhnc: no need to be tight, what would be a good size for a hole to have?
[13:28:10] <Valen> my home positions are all over the shop
[13:28:12] <joe9> to fit a #10-32 gauge screw to go through.
[13:28:40] <Valen> z is about the middle x is at ~1/3rd and y is riiiight at the back
[13:28:40] <joe9> jdhnc: just enough that it is not a lot of movement in there.
[13:28:47] <Jymmm> joe9: #7 drill bit or 0.201"
[13:28:47] <ReadError> oh so your 1st box is 0 ?
[13:28:52] <ReadError> when you do the stepper config ?
[13:29:08] <awallin> for metric the drill used is smaller by about the pitch of the thread. i.e. M6 has 0.5mm pitch so drill with 5.5mm. fwiw...
[13:29:31] <jdhnc> awallin: makes too much sense, it will never catch on.
[13:30:03] <joe9> ReadError: these are my step configuration values: http://codepad.org/C0wAhJfa
[13:30:10] <DJ9DJ> for M6, the drill size for thread is 5mm
[13:30:24] <joe9> ReadError: and, this is my .ini file: http://codepad.org/Bs7qgMQ8
[13:30:34] <Tom_itx> DJ9DJ what's the clearance size?
[13:30:37] <joe9> ReadError: and, my .hal file: http://codepad.org/WBIm9dJs
[13:30:40] <awallin> DJ9DJ: oh, ok, maybe the pitch is 1mm..
[13:30:41] <jdhnc> I need some flat-head M4's to mount my power supplies
[13:30:56] <Jymmm> Ewwwwwwwwwww
[13:30:56] <joe9> Jymmm: thanks a lot.
[13:30:58] <awallin> M3 might be 0.5mm pitch and drill is 2.5mm ?
[13:30:59] <DJ9DJ> awallin: http://lookass.ch/content_engineering/Kernlochdurchmesser_Gewinde.pdf
[13:31:11] <DJ9DJ> awallin, yes
[13:31:25] <joe9> i prefer metric over imperial, given that I was trained in metric.
[13:31:33] <joe9> but, whatever works.
[13:31:43] <DJ9DJ> Tom_itx, clearance size? dunno, I am not a mechanic engineer or something ;)
[13:31:43] <jdhnc> is there any reason not to power my 7i43 from a 5V disk power cable?
[13:31:47] <Jymmm> joe9: http://www.sizes.com/tools/twist_drills.htm
[13:31:48] <jdhnc> joe9: where are you from?
[13:31:59] <awallin> DJ9DJ: it's nice they have the spindle RPM with five significant figures in that table. just in case you have a spindle that keeps RPM with 0.01% precision..
[13:32:07] <joe9> jdhnc: was not trained in the US.
[13:32:24] <jdhnc> where were you trained? or is it a secret?
[13:32:43] <jdhnc> (you don't need to answer if it is!)
[13:32:49] <joe9> jdhnc: i was not trained in machining at all. but, I am not a native american. an immigrant.
[13:33:00] <joe9> my schooling was not in the States.
[13:33:14] <DJ9DJ> hihi
[13:33:56] <jdhnc> that leaves a lot of places.
[13:34:06] <Jymmm> Yeah, Canada
[13:34:20] <Jymmm> Those damn illegal Canucks!
[13:34:50] <Jymmm> oh yeah, I forgot to say... Eh
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[13:35:33] <joe9> Jymmm: thanks, that url is very helpful.
[13:35:40] <joe9> Jymmm: india
[13:35:47] <joe9> sorry, jdhnc. ^^
[13:36:18] <joe9> there is a lot of anti-indian feeling in the software irc channels. so, just was not sure how it would be received here.
[13:36:26] <Jymmm> joe9: India?! There's only two things come from india... call centers and curry =)
[13:36:30] <jdhnc> really?
[13:36:37] <Jymmm> joe9: http://www.sizes.com/tools/thread_NCNF.htm
[13:37:18] <Jymmm> joe9: That's probably the $5 software developemnt that you are getting vibes from
[13:37:26] <joe9> yes.
[13:38:29] <JT-Shop> I thought India didn't eat curry only the English have curry???
[13:39:26] <Jymmm> JT-Shop: Did you know that Curry doens't have curry in it
[13:39:40] <JT-Shop> lol
[13:39:45] <Jymmm> seriously
[13:40:23] <archivist> the joke on one of the comedies here was lets have an english
[13:40:39] <Jymmm> Curry (the spice blend/sauce) doens't contain curry (the plant)
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[13:43:20] * archivist blames JT-Shop ...../me starts a shed http://www.collection.archivist.info/archive/DJCPD/PD/2012/2012_04_23_shed/
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[13:45:45] <jdhnc> is that a shed by the shed?
[13:46:40] <JT-Shop> archivist: what are the framing material made from?
[13:46:42] <Jymmm> jdhnc: Can't you see archivist waving his hand in the window of his livingroom?
[13:46:45] <archivist> er yes, those are just past the other shed
[13:47:14] <Jymmm> jdhnc: you should see the kitchen! =)
[13:47:25] <jdhnc> I need a shed to get rid of the lawn crap I never use.
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[13:47:31] <archivist> JT-Shop, upvc window frames
[13:47:43] <Jymmm> jdhnc: it's called the curb
[13:47:56] <jdhnc> Jymmm: well, I do use it infrequently.
[13:48:01] <jdhnc> some of it anyway
[13:48:16] <jdhnc> I use the edger every other year and reclaim 2ft of my driveway
[13:48:26] <Jymmm> archivist: 'U' pvc ?
[13:48:27] <archivist> JT-Shop, helps that I know a local window company and those are miss measures
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[13:48:36] <JT-Shop> cool
[13:48:54] <jdhnc> know a paint & shingle shop?
[13:49:15] <Jymmm> archivist: 'u' being UV additives?
[13:49:38] <archivist> no, but got melamine coated plywood for the roof,floow and wall
[13:49:49] <archivist> Jymmm, YES
[13:50:12] <Jymmm> archivist: is that common in UK or more of a speciality thing?
[13:50:21] <archivist> common
[13:50:29] <Jymmm> Hmmm
[13:50:50] <Jymmm> Maybe it's just implied here in the states.
[13:50:59] <archivist> that and double glazed glass units
[13:51:40] <Jymmm> Yeah, only the last 10years or so have double and even tripple glazed have become common
[13:52:52] <Jymmm> archivist: The nice thing about that vinyl is the condensation factor, or lack there of.
[13:54:31] <Jymmm> archivist: Do you know if you have to compensate for thermal expansion?
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[13:56:02] <archivist> not been made aware of any thermal issues and I should have caught on as I sat at the window company doing the website
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[13:57:06] <archivist> window stuff has loads of clearance and gaps filled with flexible silicon
[13:57:41] <Jymmm> archivist: Ok, cool. I've just never seen any THAT large used as walls alone without being framed into something else.
[13:58:29] <archivist> those were for a conservatory and are load bearing
[13:58:39] <Jymmm> Oh, nice!
[13:58:41] <archivist> just a metre too long :)
[13:58:50] <Jymmm> Ooooops ;)
[13:59:16] <archivist> better for me 12ft sides :)
[14:00:18] <Jymmm> do any of the holes allow for a sliding window?
[14:00:19] <ReadError> odd im using the same settings as joe
[14:00:28] <ReadError> and emc thinks the spindle is below the work peice
[14:02:09] <archivist> Jymmm, no
[14:02:26] <jdhnc> did you touch off to some place below?
[14:02:33] <Jymmm> archivist: Bummer, that would have been a nice addition
[14:02:48] <Jymmm> Interesting... http://www.sizes.com/sports/shotguns.htm
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[14:10:12] <alex_joni> heh http://failblog.files.wordpress.com/2012/04/white-trash-repairs-there-i-fixed-it-you-sure-that-gravel-is-secure-dave.png
[14:20:40] <Jymmm> alex_joni: Seen it before. I was thinking it had to be to hold up the side doors, but when the gravel shifts, the straps would loosen so that doens't make sense either.
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[14:26:20] * cpresser bets that there is somthing else hidden under the gravel
[14:27:58] <archivist> probably to stop the remote controlled sides dropping while in transit
[14:28:17] <Vq> Or perhaps it's solid part of a statue and not gravel. :o)
[14:28:25] <Vq> A weird statue...
[14:28:55] <cpresser> 'its art' always is an valid answer^^
[14:30:22] <Vq> Yep, nothing is hard to explain anymore. :)
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[16:29:51] <JT-Shop> who is e-ndy and why does his nick change so much?
[16:30:32] <ReadError> runnin from the law
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[16:33:57] <djdelorie> JT-Shop: "afk" == "away from keyboard"
[16:40:05] <jdhnc> I doubt anyone cares.
[16:40:11] <JT-Shop> yea
[16:40:39] <djdelorie> maybe it does it automatically when his screensaver kicks in...
[16:42:05] <JT-Shop> ah I understand now
[16:45:58] <JT-Shop> dang these crab chips are good
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[16:52:46] <jdhnc> c'mon admit you see nothing factual about 'forgiving student loans'
[16:52:54] <jdhnc> <urk>
[16:53:12] <Loetmichel> re @ home
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[17:21:47] <IchGuckLive> hi all out there in the World
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[17:25:22] <Loetmichel> soo, female snap-in-IEC21-C14 are here, now the back panel of the CNC is complete... -> http://www.cyrom.org/palbum/main.php?g2_itemId=13143
[17:25:53] <Loetmichel> ... just a "bit" of wireing inside and then i can move to the x and z axis hardware ;-)
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[17:53:45] <mhaberler> suggested viewing: http://www.youtube.com/watch?v=yJPLJGdiQWw&feature=plcp&context=C494ebbdVDvjVQa1PpcFOUhIqfm3XcEJtse1eR8fqk7sO0WffoNSU%3D
[17:56:36] <archivist> well done!
[17:56:38] <cpresser> mhaberler: some gantry users will like this. right now i am using a hal-module which intercepts pos-command in hal. only for z to retract the tool.
[17:57:00] <cpresser> it looks like i can drop my ugly code soon and adapt yours :)
[17:57:01] <mhaberler> oh man
[17:57:18] <mhaberler> this just started working, aint ready for prime time
[17:57:24] <archivist> hehe
[17:57:28] <mhaberler> but it will
[17:58:31] <IchGuckLive> mhaberler: why not retract in Axis order Z first
[17:59:02] <mhaberler> I leave that as an exercise for you ;)
[17:59:06] * cpresser quotes: "aint ready for prime time"
[17:59:13] <IchGuckLive> if im down and it retracts crossover and moves back crossover thats in most cases not a planed
[17:59:45] <IchGuckLive> mhaberler: im stil fighting with my G12/G13
[17:59:48] <mhaberler> that isnt the point - the conventional wisdom was this is next to impossible to do with
[18:00:34] <IchGuckLive> but i will wait for the next LTS main streaam support
[18:00:42] <mhaberler> ?
[18:00:50] <IchGuckLive> 2.60
[18:01:07] <mhaberler> whatever lights your candle ;)
[18:01:15] <IchGuckLive> B)
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[18:08:45] <skunkworks> mhaberler: nice work!
[18:08:54] <jdhnc> I can't see the video here. How do you trigger it?
[18:09:24] <mhaberler> the devil is in them details..
[18:09:49] <mhaberler> re video: open the link in your browser, like any youtube video?
[18:10:13] <skunkworks> jdhnc: it is a button on his side panel
[18:10:13] <jdhnc> can't from here.
[18:10:40] <jdhnc> cool
[18:10:51] <jdhnc> instant, or at end of current line or what?
[18:12:38] <skunkworks> mhaberler: how much more to be able to touch-off the tool - change offsets and such then restoart. (that is going to be the next question from people...)
[18:12:45] <skunkworks> restart?
[18:13:03] <mhaberler> uh...
[18:13:11] <mhaberler> let me sleep over it
[18:13:14] <skunkworks> heh
[18:13:34] <skunkworks> Really - I don't miss it (didn't know I was missing it) but people seem to really want it.
[18:17:10] <jdhnc> I'd like to be able to move and clean out, but I guess I could program in two tool changes and jog it out of the way to clean
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[19:11:14] <alex4nder> hey
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[19:42:08] <ThadiusB> finally, everythings in order :)
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[19:48:15] <alex4nder> joe9: hey
[19:48:26] <joe9> alex4nder: hello.
[19:49:02] <ThadiusB> hello
[19:49:13] <joe9> ReadError: can you please check if the mills were delivered a day early, by any chance?
[19:52:11] <ThadiusB> think he said he was in a conference
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[20:31:04] <joe9> ThadiusB: ok, thanks.
[20:31:28] <Tom_itx> JT-Shop some ppl have all the luck.
[20:33:41] <Tom_itx> i stopped by the scrap yard to see if i could find some U extrusion or something to use for a heatsink for the 203v's and would up stumbling on this so i had them slice me of 3' of it: http://tom-itx.dyndns.org:81/~webpage/temp/cnc/psu/heatsink1.jpg
[20:34:09] <Tom_itx> even tagged 'heatsink' on the back
[20:34:17] <Thetawaves> NICE
[20:34:25] <Thetawaves> i have real problems locating heat sinks
[20:34:34] <Tom_itx> i didn't really need all 8'
[20:34:44] <Tom_itx> maybe i should have grabbed it
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[20:36:57] <Tom_itx> i was gonna use a slab of 5/8 alum if i couldn't find anything else
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[21:05:02] <DJ9DJ> gn8
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[21:09:49] <JT-Shop> Tom_itx: how is that?
[21:14:14] <alex4nder> ok.. this board wins the latency tests
[21:16:37] <alex4nder> Max jitter on 1ms thread ... 27 nS
[21:16:45] <djdelorie> wow
[21:17:07] <alex4nder> Max jitter on 25 uS thread ... 15 nS
[21:17:19] * alex4nder does the super RTOS dance.
[21:20:04] <ReadError> hey alex4nder
[21:20:06] <JT-Shop> archivist: do you use any low cost reliable stepper driver boards that are available in the UK?
[21:20:09] <ReadError> what values are you using on Z?
[21:20:14] <ReadError> i set it to -6 -> 0
[21:20:21] <ReadError> but it shows it as below the work piece
[21:20:35] <alex4nder> did you touch off the workpiece?
[21:21:34] <andypugh> alex4nder: That sounds unfeasible.
[21:22:01] <andypugh> JT-Shop: www.zappautomation.co.uk
[21:22:10] <alex4nder> andypugh: it is unfeasible using RTAI on Linux
[21:22:22] <andypugh> Ah, I see.
[21:22:28] <andypugh> What are you using?
[21:23:05] <alex4nder> I've started porting the motion/kins/stepgen/hal to ChibiOS
[21:23:21] <andypugh> Sounds like quite a project.
[21:23:35] <alex4nder> I'm just messing with it right now.
[21:24:00] <andypugh> What's the application? As far as I can see Linux/RTAI is good enough for most CNC purposes?
[21:24:08] <alex4nder> my mill
[21:24:29] <alex4nder> it doesn't 'need' it.
[21:24:37] <alex4nder> but I don't really 'need' a mill either. ;)
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[21:25:58] <andypugh> Now that's just crazytalk!
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[21:28:45] <Tom_itx> JT-Shop did you see the piece of heatsink i found at the scrap today?
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[21:32:13] <ReadError> alex4nder: http://i.imgur.com/OFAo8.png
[21:32:19] <ReadError> thats what it thinks is happening
[21:32:35] <JT-Shop> andypugh: thanks
[21:32:41] <JT-Shop> Tom_itx: yes, good score
[21:33:21] <djdelorie> ReadError: at the same time, take a picture of the mill
[21:33:48] <alex4nder> right
[21:34:17] <alex4nder> you didn't touch off on Z?
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[21:38:33] <andypugh> Interesting, the Glade editor calls some widgets "Dialogue" Is that a bit of localisation?
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[22:24:32] <tom3p> mhaberler, very nice on the interrupt/retract/return/continue. wrote longer email about it, hope it makes it to you. i dont see it on list yet.
[22:24:35] <tom3p> thanks!
[22:25:42] <tom3p> oh, thanks andy!
[22:27:02] <tom3p> argh "fatal: Not a git repository (or any of the parent directories): .git" will try next time i get inet, thx 4 now
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[23:07:16] <Tom_itx> JT-Shop do you happen to have the hole layout for the 203v?
[23:07:21] <Tom_itx> or anyone for that matter
[23:07:43] <JT-Shop> Tom_itx: I think it is in the manual
[23:07:50] <Tom_itx> i didn't see it
[23:07:56] <Tom_itx> or don't have the right manual
[23:07:59] <JT-Shop> if not I can measure my spare one
[23:08:54] <Tom_itx> i was looking at a heatsink on pmdx.com but i don't see all the dimensions given
[23:09:04] <Tom_itx> http://www.pmdx.com/Doc/PMDX-Heatsink-01_Rev_11.pdf
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[23:09:28] <Tom_itx> x is given but not y
[23:09:35] <Tom_itx> at least not that i see
[23:10:12] <JT-Shop> Mounting Pattern: 4 6-32 screws, 1.75” by 2.375” (44.5 mm, 60 mm)
[23:10:24] <Tom_itx> it may be the 1.712 and 4.112
[23:10:31] <Tom_itx> i can't tell for sure
[23:10:53] <JT-Shop> says 1.75x2.375 in the manual
[23:11:22] <Tom_itx> ok i see that. i was looking for a layout :)
[23:11:38] <Tom_itx> how far between drivers?
[23:11:46] <JT-Shop> I thought I saw it in there
[23:11:48] <JT-Shop> let me see
[23:12:01] <Tom_itx> i'll compare it to the website's drawing
[23:12:20] <Tom_itx> do you butt yours together or leave a gap?
[23:12:38] <JT-Shop> mine have quite a gap
[23:12:54] <JT-Shop> I'd leave some space for sure if possible
[23:13:07] <JT-Shop> 2.5 x 2.5 case size
[23:13:07] <Tom_itx> 1/4"?
[23:13:18] <JT-Shop> ?
[23:13:23] <Tom_itx> between drives
[23:13:28] <JT-Shop> yea
[23:14:49] <Tom_itx> that drawing shows them butted against each other
[23:15:48] <JT-Shop> that drawing sucks
[23:16:02] <Tom_itx> sure does but i've dealt with worse
[23:17:50] <JT-Shop> and it seems to be incorrect on the Y measurement if I cyphered it correctly
[23:18:28] <Tom_itx> well i got 1.712 and 4.112 for y
[23:18:35] <Tom_itx> for the drive holes
[23:19:18] <JT-Shop> that is 2.4 and gecko says 2.375
[23:19:33] <Tom_itx> that allows a little slop in the slot
[23:19:52] <Tom_itx> .010 approx
[23:19:54] <Tom_itx> per side
[23:20:05] <Tom_itx> that's not unreasonable
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[23:25:19] <JT-Shop> yea, I guess that is what they wanted
[23:25:46] <Tom_itx> if the 2.375 fits may as well use it
[23:26:06] <JT-Shop> want me to measure my spare?
[23:26:19] <Tom_itx> mine'll be here thur
[23:26:33] <Tom_itx> i won't get to it til then anyway. just drawing a cad file for it
[23:27:28] <Tom_itx> they should know what their own hole pattern is
[23:28:30] <JT-Shop> yea
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[23:43:04] <Tom_itx> JT-Shop, do you have a pic of where you mounted yours?
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