#emc | Logs for 2011-12-31

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[00:14:08] <skunkworks_> http://cnczone.com/forums/machines_running_mach_software/134694-feedrate_do_not_change_before.html
[00:15:31] <Tom_itx> well it's supposed to finish it's current line isn't it?
[00:15:52] <gene76> Got nuther dumb Q guys, cutter comp this time
[00:16:36] <tom3p> robin_sz open the file in read binary mode?
[00:17:29] <gene76> I have a tool table entry on position 1 says it is .511 long, diameter .125 for an 1/8" end mill
[00:18:03] <gene76> first move in code it to z0.500
[00:18:21] <tom3p> robin_sz, FILE *fp = fopen("myfile", "rb");
[00:18:39] <tom3p> robin_sz, (maybe;)
[00:19:37] <gene76> reloading code throws error, length of entry move not greater than tool raduis. Height isn't mentioned. Need a clue here.
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[00:22:00] <rob_h> look at ur comp drive on line for that tool, sounds like it is not longenougth to drive it on
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[00:27:19] <gene76> I set x=0.0625, y=0.0625, diamter = 0.125, what more does it need. I erased the Z=.511 box, reloaded table, same error
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[00:31:52] <gene76> From the appearance of the tool table in edit mode, the machine is in lathe mode, that display is much more complex than mill mode in the manual
[00:32:53] <gene76> How is that changed back to mill mode?
[00:34:37] <tom3p> jthornton, the links to the 2.5beta are broken here (404) http://www.linuxcnc.org/index.php/english/component/kunena/?func=view&catid=24&id=16
[00:35:22] <robin_sz> tom3p, que?
[00:35:58] <tom3p> robin_sz, the file (serial device , whatever) will trim the 8th bit unless you open in binary mode
[00:36:03] <robin_sz> ah
[00:36:26] <robin_sz> c_flag &= ~ISTRIP cured it
[00:36:29] <tom3p> but it looked like you got some configure work around anyway
[00:36:31] <tom3p> yep
[00:36:45] <robin_sz> i ahd troubel with CRTSCTS too
[00:37:08] <robin_sz> but that turned out to be setting std=c99
[00:37:25] <tom3p> on M$? or a *nix?
[00:37:35] <robin_sz> linux
[00:38:02] <tom3p> well good on you, got it working
[00:38:04] <robin_sz> setting some compiler options eg c99 removes some odd defintions
[00:38:16] <robin_sz> CRTSCTS being one of them
[00:38:42] <robin_sz> I suspect the fun will all start again when I compile it on arm9 ;)
[00:39:55] <tom3p> if it aint in my old K&R book it aint real c ( notc :)
[00:43:17] <gene76> That is if your copy has a big red C on the cover I assume?
[00:43:58] <tom3p> i thought it was white with blue letters hehe look at it in a bazillion languages http://cm.bell-labs.com/cm/cs/cbook/
[00:44:34] <gene76> That is the original, I have both
[00:44:49] <tom3p> and moor'es book on forth was blue and the pl1 book was.... hey i'm trying to untangle python here
[00:44:58] <gene76> edition 2 they call it.
[00:45:45] <gene76> Python? Rotsa ruck. Now, why can't i set a tool and excute a g41 d1?
[01:00:30] <archivist> 2nd ed has one joke in it, look up recursion in the index
[01:03:48] <Tom_itx> what about it?
[01:05:02] <archivist> have you tried to look up each page
[01:06:20] <Tom_itx> :)
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[03:54:44] <clytle374> I seem to have --run-in-place-only-as-root set permanently
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[04:13:45] <A2Sheds> whats the lowest cost single axis USB stepper motor controller?
[04:14:49] <Tom_itx> maybe that thing from sparkfun?
[04:14:58] <Tom_itx> err, not usb
[04:15:29] <A2Sheds> http://www.robotshop.com/sfe-eiboard-usb-stepper-servo-motor-robot-controller.html?utm_source=google&utm_medium=base&utm_campaign=jos ~$50
[04:15:43] <A2Sheds> I don't get why it so high priced
[04:16:57] <Tom_itx> cause they want to take your money
[04:17:03] <A2Sheds> http://www.robotshop.com/sfe-easydriver-bipolar-stepper-motor-driver.html is only $15, why $35 more for a USB slave controller?
[04:17:18] <A2Sheds> yeah, there must be a China special
[04:18:16] <Tom_itx> looks like sparkfun has the same board
[04:18:28] <Tom_itx> maybe
[04:19:09] <Tom_itx> 2 channel
[04:19:46] <A2Sheds> http://www.ebay.com/itm/USB-DB25-6-Axis-Stepper-Motor-Driver-Breakout-Board-Interface-Adapter-High-Speed-/180785130435?pt=LH_DefaultDomain_0&hash=item2a17a22bc3
[04:20:41] <A2Sheds> http://www.ebay.com/itm/USB-DB25-5-axis-Breakout-Board-Interface-Adapter-PC-Stepper-Motor-Driver-/220917804617?pt=LH_DefaultDomain_0&hash=item336fba2e49
[04:20:50] <A2Sheds> is the USB only for power?
[04:21:30] <Tom_itx> kinda looks like it
[04:22:52] <A2Sheds> do i have to build everything? again!
[04:23:06] <Tom_itx> does it have to be usb?
[04:23:38] <A2Sheds> well, most PC's have USB, serial and PP have gone away
[04:24:09] <Tom_itx> http://dlnmh9ip6v2uc.cloudfront.net/images/products/10267-01b.jpg
[04:24:30] <Tom_itx> http://www.sparkfun.com/products/10267
[04:24:33] <A2Sheds> I'm working out the lowest cost stepper controller for an open DIY photopolymer printer
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[04:24:51] <Tom_itx> ask maxbots in #seattlerobotics
[04:24:55] <Tom_itx> he has mendlemax
[04:25:09] <Tom_itx> for a reprap
[04:25:20] <Tom_itx> using nema17 iirc
[04:25:31] <A2Sheds> EasyDriver Stepper Motor Driver just needs a USB interface
[04:25:41] <Tom_itx> so use lufa
[04:25:47] <A2Sheds> USB slave device is cheap and easy
[04:26:04] <Tom_itx> and an avr usb breakout
[04:26:20] <A2Sheds> I'm just a bit surprised that there isn't a $25 solution for hobby
[04:26:32] <Tom_itx> you just haven't found it yet
[04:28:01] <A2Sheds> http://www.sparkfun.com/products/9147
[04:28:48] <FinboySlick> A2Sheds: So you weren't kidding when you said you had ideas for a STL printer.
[04:29:06] <Tom_itx> http://tom-itx.dyndns.org:81/~webpage/boards/USB_Breakout/USB_Breakout_index.php
[04:29:42] <A2Sheds> FinboySlick: I'm putting together two different designs, one based on DLP and the other on TFT LCD
[04:29:54] <A2Sheds> only the z-axis moves
[04:30:23] <FinboySlick> A2Sheds: UV? I thought you said those were too dangerous.
[04:30:48] <A2Sheds> the stage starts on the bottom of a vat of monomer, it just steps up 0.01mm for each slice to be exposed and polymerize
[04:31:33] <A2Sheds> I decided on a 385-390nm UV, it cures with the same UV energy as a sunny day
[04:31:53] <A2Sheds> it's long UV, just outside visible
[04:31:59] <A2Sheds> and low power
[04:32:00] <Tom_itx> short pot life?
[04:32:07] <FinboySlick> A2Sheds: So sort of like the DIY DLP one I talked about a while back but safer?
[04:32:21] <A2Sheds> nots, it only cures with UV light
[04:32:32] <Tom_itx> i got some uv paint i used on some enclosures
[04:32:34] <A2Sheds> nots/no
[04:33:02] <A2Sheds> yeah, DLP ad also a TFT LCD version like a projection unit
[04:33:40] <Tom_itx> http://tom-itx.dyndns.org:81/~webpage/boards/USBTiny_Mkii/silkscreen/silk_batch_cure.jpg
[04:33:52] <Tom_itx> old fistank bulbs to cure it
[04:33:57] <Tom_itx> fishtank*
[04:34:05] <A2Sheds> two or three other photopolymer printers started out open, then they decided to close them up
[04:34:47] <A2Sheds> Tom_itx: yes, if you wanted to cure the whole vat you could just use a tanning bed lamp
[04:35:07] <FinboySlick> A2Sheds: Spinning mirrors and laser would be too tricky, right? I'd be thinking of using the innards of a laser printer but with an orthogonal spinning mirror for scan.
[04:35:24] <A2Sheds> but since we are 3d printing at 0.01-0.015mm res, we add the DLP or TFT
[04:35:53] <A2Sheds> that would also work, I'm just keeping it simple for DIY
[04:37:35] <FinboySlick> A2Sheds: So the compromise in your case is the number of pixels? Or are you sort of working around that too?
[04:38:01] <A2Sheds> AFAIK, the other projects don't even sell the photopolymers
[04:38:30] <A2Sheds> HD res for DLP
[04:39:10] <A2Sheds> having the stage move x-y would allow for larger prints, but v1 is just z-axis movement
[04:39:48] <A2Sheds> so 180 x 100mm print area, maybe 300mm in z
[04:40:26] <FinboySlick> A2Sheds: If the DLP was square, you could just have it pivot 90 degrees four times with each pass and get four times as many pixels with minimal trouble.
[04:41:14] <A2Sheds> it's all open design, so knock yourself out
[04:41:31] <A2Sheds> http://reprap.org/wiki/Lemon_Curry it will all be here
[04:42:44] <FinboySlick> Planning on photo-polymer recipes too? I asked a chemist friend who works with the DoD and apparently not all of them would get us on a terrorist watchlist ;)
[04:43:38] <A2Sheds> I have a few formulas now
[04:44:22] <A2Sheds> I have to be careful what I open since I have NDA's for almost everything I touch
[04:45:15] <A2Sheds> but resins will sell for $40 - $150/L based on chemistry
[04:45:34] <A2Sheds> I buy monomers in bulk 55gal drums
[04:45:58] <A2Sheds> and tankers are only 30K liters
[04:46:45] <A2Sheds> not the $300/L and up typical
[04:46:46] <Tom_itx> job related?
[04:47:01] <A2Sheds> nah, just a hobby :)
[04:49:08] <A2Sheds> http://www.chemshapes.com/ started open, then he went quiet
[04:49:44] <FinboySlick> A2Sheds: If you go very rich but quiet, we'll know what happened ;)
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[04:51:04] <A2Sheds> nah, time to open this up, there's enough $ in polymers and applications
[04:51:36] <A2Sheds> there are over 10K repraps or similar running now
[04:52:20] <Tom_itx> how is this better than reprap?
[04:52:26] <A2Sheds> DIY photopolymer printer is going to be $500-600 in parts min.
[04:52:37] <A2Sheds> it's different
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[04:52:55] <A2Sheds> it depends on your application
[04:52:56] <FinboySlick> Tom_itx: Potentially much higher resolution and surface finish.
[04:53:08] <FinboySlick> But it's typically very different material.
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[04:54:09] <A2Sheds> like cnc mill/vmc vs cnc punchpress/brake
[04:54:40] <Tom_itx> it would be nice to take a solidworks solid and some intermediate software that sliced it into layers and printed it
[04:54:52] <A2Sheds> already done
[04:55:14] <A2Sheds> reprap has a slicer and there are a few others
[04:55:25] <Tom_itx> what output?
[04:55:32] <A2Sheds> 3d model to slice to gcode
[04:55:46] <Tom_itx> is reprap limited gcode?
[04:55:59] <A2Sheds> yeah
[04:56:24] <A2Sheds> http://reprap.org/wiki/G-code
[04:57:06] <A2Sheds> EMC is overkill for my printers
[04:57:23] <A2Sheds> and it doesn't need realtime
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[04:57:47] <A2Sheds> but I could run EMC without RTAI
[04:57:58] <Tom_itx> it free so what the hey
[04:58:40] <A2Sheds> I expose the slices to the DLP or LCD onto the resin, then step the z-axis, pretty simple
[04:58:49] <Tom_itx> heh they went nuts with the M codes
[04:59:40] <A2Sheds> FinboySlick: is that a European thing? :p
[05:00:36] <A2Sheds> he can see Ireland from his front window
[05:01:30] <Tom_itx> what consistency is the polimer?
[05:01:45] <A2Sheds> if I can find DLP projectors without lamps i might be able to keep the price under $500
[05:01:47] <Tom_itx> can you lay down a layer then expose the whole thing at once?
[05:02:07] <FinboySlick> A2Sheds: European?
[05:04:03] <A2Sheds> the resin is like industrial coatings and paints, thicker than water but not like syrup
[05:04:33] <Tom_itx> so layer at a time wouldn't do so well
[05:05:03] <A2Sheds> v1 will be just that, expose a full layer, blank the screen, step Z, expose a layer, step Z etc etc
[05:05:15] <Tom_itx> ahh ok
[05:05:44] <Tom_itx> i'm being summoned.
[05:05:49] <Tom_itx> gnite
[05:05:59] <A2Sheds> if you want more print area without losing res then you need to add mirrors or move the stage x-y
[05:06:08] <A2Sheds> nite
[05:07:06] <Tom_itx> why not make your own stepper board?
[05:07:19] <A2Sheds> lazy
[05:07:24] <Tom_itx> or open source the files or whatever
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[05:07:38] <A2Sheds> was hoping to find one
[05:07:53] <Tom_itx> allegro i'm sure has a decent driver chip
[05:08:01] <Tom_itx> and a usb avr
[05:08:05] <Tom_itx> about all you need
[05:08:21] <A2Sheds> epp to stepper is $35es
[05:09:05] <A2Sheds> I just can't believe there isn't already one out there for $25-30
[05:12:05] <A2Sheds> http://www.gizmag.com/epson-2160p-lcd-projector-panel/13333/
[05:12:34] <A2Sheds> 4096 x 2160 pixels and only 1.64 " diag
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[05:24:42] <A2Sheds> http://www.pc-control.co.uk/osc/index.php?cPath=21
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[05:26:06] <clytle374> A2Sheds, all that 3d printer stuff is pretty cool.
[05:26:15] <clytle374> Can any do wax?
[05:26:50] <A2Sheds> I know there are pro units, not sure of DIY
[05:27:36] <A2Sheds> I can also print with inkjet powder+binder 1L/hr with one printhead, you could print molds for wax
[05:28:23] <clytle374> thinking of investment casting
[05:28:31] <A2Sheds> http://www.avrusb.com/
[05:29:17] <A2Sheds> http://dicks.home.xs4all.nl/avr/usbtiny/ maybe Tiny with $15 stepper driver
[05:31:16] <clytle374> I liked programming Atmels.
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[05:35:52] <clytle374> Are there any tools, other than the compiler, for Atmels in LINUX
[05:36:36] <A2Sheds> http://www.adafruit.com/products/296
[05:36:54] <clytle374> I'm going to rip the caps lock key off this tiny keyboard soon
[05:37:28] <A2Sheds> not sure, i try to avoid coding as much as possible, I'd rather hold the wrong end of a soldering iron than program
[05:38:35] <A2Sheds> http://www.adafruit.com/products/199
[05:39:12] <A2Sheds> http://pjrc.com/teensy/index.html
[05:39:27] <A2Sheds> http://pjrc.com/teensy/teensyduino.html
[05:40:10] <clytle374> I like assembly, C is okay. for visual C I made up new bad words
[05:40:26] <A2Sheds> haha
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[05:54:30] <clytle374> latency-test running, time for sleep and see if it gets over 5000 overnight
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[06:41:10] <automata> Hi PCW_home
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[10:26:46] <Loetmichel> mornin' out of the bathing tub ;-)
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[10:49:33] <Loetmichel> *dribb*
[10:50:17] <Loetmichel> <- back at the PC
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[11:20:09] <jthornton> tmi
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[12:10:48] <Loetmichel> jthornton: hihi
[12:11:01] <jthornton> hidy ho
[12:28:23] <mazafaka> i finally think it's more convenient to leave the inlet open while I am in the garage for the heat out of the wood stove to go easily into the room. When I leave the garage, I close it but the burning goes. When it stops, the air of the room heats up the air in the pipe and it goes out to the street. This way the garage cools down and there's no condensation which exists when you heat it up only from time to time.
[12:28:35] <mazafaka> jthornton: <
[12:50:21] <Loetmichel> hmmmm... being 2012 coming: mybe i should buy a little genset and a woodburner for the house? (and some ammunition ;-)
[12:50:55] <jthornton> forgetting one thing I think
[12:51:20] <Loetmichel> which?
[12:51:35] <jthornton> something to use with the ammo
[12:51:42] <Loetmichel> harhar, right
[12:52:02] <Loetmichel> but i wouldnt get a weapon, living in germany...
[12:52:44] <Loetmichel> maybe i have to settle for a compound Bow and some carbon hunting arrows ;-)
[12:53:59] <Loetmichel> ore more likely: build a quad crossbow like the one in the van helsing film ;-)
[12:55:38] <Loetmichel> hmm, the wrences for the ER11 are milling niceley, now that i switched from a 1mm TC bit to a 2mm
[12:56:21] <Loetmichel> looks like the moment of contact to the steel is to much for the 1mm... broke three :-(
[12:59:07] <jthornton> 1mm is a tiny thing
[13:02:36] <jthornton> I hate using a 1/8" endmill on steel
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[13:07:31] <Loetmichel> jthornton: i have 0,4mm end mills in TC
[13:07:32] <Loetmichel> ;-)
[13:07:45] <Loetmichel> and used them in brass
[13:07:59] <jthornton> I have a 6k spindle :/ but can have up to 3" diameter tools
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[13:28:26] <archivist> Loetmichel, are you reducing feeds on steel compared to other materials
[13:28:39] <Loetmichel> hmmm
[13:28:41] <Loetmichel> tell me
[13:29:01] <Loetmichel> i just hurried the 2mm 2 flute through the steel with 600mm/min
[13:29:30] <Loetmichel> and 18kRPM
[13:30:18] <archivist> its a tougher material and work hardens, also sticks to the tool (built up edge) use the right lubricant to stop that
[13:31:14] <archivist> although carbides can be used dry in the right conditions
[13:31:42] <Loetmichel> no lubricant
[13:32:11] <Loetmichel> but at the end i t got dull, red hot and now i have to "dremel" the tip out of the end of the slot ;-)
[13:33:15] <jthornton> chips too small?
[13:33:31] <archivist> or cant clear chips
[13:33:42] <Loetmichel> no, just got a used (dull) bit
[13:33:42] <jthornton> most of my inserts for steel call for dry or air only
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[13:34:50] <archivist> the one useful thing I learnt from the new owner of mach was about carbide cracking due to poor cooling
[13:34:54] * jthornton loves the microscope for looking at tool edges, much better for old tired eyes
[13:35:20] <archivist> dry means less cracking often
[13:35:48] <jthornton> yea, thermal shock is bad for carbide
[13:36:20] <archivist> micro cracks being caused by heating when the coolant in not flooded correctly
[13:39:20] <jthornton> how do you flood correctly?
[13:40:29] <archivist> I think that is a bit of an art form :)
[13:41:12] <archivist> gun drills being the extreme
[13:45:23] <jthornton> I've never used a gun drill, how does it stay straight?
[13:47:27] <archivist> partly by the design of the tip(it has support built in) and the pressure of the coolant clearing chips because the cause the wandering
[13:47:51] <archivist> the chips cause wandering
[13:48:30] <archivist> I seem to remember exceedingly high pressures of the coolant
[13:49:42] <TekniQue> I once had a hand grinder carbide tool snap in half when I dunked it in water to be able to handle it when I was going to take it out of the grinding tool
[13:49:47] <jthornton> can you view this ok? http://www.gnipsel.com/ballista/videos/test-fire-1.wmv
[13:50:11] <archivist> http://www.gundrillingsolutions.com/Pages/param.html
[13:50:56] <archivist> lower pressure mentioned there than I remember from a show
[13:51:35] <jthornton> interesting stuff
[13:54:43] <archivist> I see 1800 psi on another page there
[13:55:07] <jthornton> that's pretty serious pressures
[14:07:27] <jthornton> how about this one? http://www.gnipsel.com/ballista/videos/test-fire-1.mov
[14:08:10] <jthornton> wow that is a huge file now at 34mb
[14:15:18] <Loetmichel> so, got it. no i just have to find the missing collets ;-) -> http://www.cyrom.org/palbum/main.php?g2_itemId=12638
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[14:19:36] <archivist> time to sort the bench sweepings
[14:21:10] <Loetmichel> correct ;-)
[14:22:00] <archivist> I have been known to keep boxes of sweepings for a long time knowing some screws/bits from something are in there
[14:23:35] <Loetmichel> harhar
[14:26:55] <archivist> and then later rebuilt the item with no missing parts, then thrown the sweepings
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[15:32:00] <Nick001> on a lathe - how do I keep the spindle from stoppng during a tool change?
[15:40:53] <JT-Shop> only if you want to
[15:41:05] <JT-Shop> oh missed the how to part
[15:41:19] <JT-Shop> M5 works for me
[15:42:18] <JT-Shop> seems the default should be off
[15:42:36] <JT-Shop> Nick001: http://linuxcnc.org/docview/html/config_ini_config.html#sub:[EMCIO]-Section
[15:43:01] <Jymmm> Any math wiz wanna help me fight a ticket?
[15:43:17] <JT-Shop> that leaves me out Jymmm
[15:43:21] <Jymmm> I dont quite understand accelration and distances
[15:43:40] <Jymmm> like 2- to 50 mph in x seconds
[15:43:44] <Jymmm> 20
[15:44:48] <Jymmm> JT-Shop: I dont know that it actually does. I t seems like acceleration in cnc to me
[15:47:18] <JT-Shop> acceleration is the rate of change
[15:49:54] <Jymmm> correct; but if I'm in rush hour traffic that's moving 30MPH, and I have to pass-thru a carpool lane that traffic in this lane is going 50MPH to get to the right-turn lane in a safe manner, can I get from 30mph to the flow of traffic speed at 50mph, then deaccelerate back down to a safe right-turn speed within 200 feet?
[15:52:04] <JT-Shop> I can on my GL1800
[15:52:48] <Jymmm> Sure, I could too. But this is in a car, and in my case an SUV that does 0 to 60 in 21.5 hours
[15:53:11] <Jymmm> | 1 | 2 | D | RT |
[15:53:12] <Jymmm> | 30 | 30 | 50 | 30 |
[15:53:43] <Jymmm> assuming the RT lane is safe to go 30MPH
[15:54:10] <Jymmm> and not slower
[15:54:32] <Jymmm> D being the diamond (carpool) lane
[15:58:01] <Loetmichel> *grrr i HATE it... had my cellphone on my nightstand... empty... for 3 days.. now it wont charge... had to dismantle the battery and "jumpstart" it. (charge the Lipo battery directly over 3,5V for the protection circuit to switch on the external contacts)
[15:59:12] <Jymmm> Decceleration rate of 14.8ft/s^2
[15:59:34] <Loetmichel> which enginneer is so dumb to disconnect the cell completly when completly discharged? it would have been enough to have a simple diode in it over the fet to recharge it from the outside!
[16:00:00] <Jymmm> Braking distance = 1.075(V^2 / a) = 1.075 (50^2 / 14.8) = 182 feet
[16:03:16] <Nick001> <JT-Shop> thanks for the info - looked all last night and could'nd find it no matter what keyword I used
[16:05:08] <JT-Shop> Nick001: np
[16:14:06] <jdhNC> Loetmichel: a not so smart charger might over-current a really dead battery and lithium doesn't usually like that.
[16:26:47] <Loetmichel> jdhNC: granted, but than it is a diode in series with a little resistor will do the trick
[16:27:12] <Loetmichel> it only needs some means of trickle charging to get the battery back over the magical 3,0V
[16:27:37] <jdhNC> they would rather piss you off than read about 'cell phone battey explodes'
[16:28:14] <Loetmichel> lithium polymer doesent explode. just burn... VIOLENTLY ;-)
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[16:28:40] <jdhNC> my daughter has a digital camera that does that too. The contacts are spaced so that you can stick a 9v battery on it and bump it up.
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[16:31:39] <Loetmichel> neat solution
[16:31:57] <Loetmichel> but the dell streak has a battery which is completely sealed
[16:32:28] <Loetmichel> ... and has NO connection to the outside if the protect circuit has hit.
[16:32:54] <Loetmichel> i checked it before dismantling the plastic /steelfoil shell
[16:34:27] <jdhNC> it's 2012, time for a new phone :)
[16:36:23] <jdhNC> http://www.tomsguide.com/us/Samsung-Smartphone-Galaxy-Tablet-Note,news-13703.html
[16:43:34] <Jymmm> maybe in your part of the world, here it's still 2011 for another 16 hours or so
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[16:50:40] <skunkKandT> is that tonight?
[16:50:46] <skunkKandT> heh
[16:56:59] <Loetmichel> jdhNC: close to what i have: dell streak
[16:57:04] <Loetmichel> 5" display ;-)
[16:58:22] <Loetmichel> just a little less cpu power, it has only a 1ghz cpu
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[17:41:06] <skunkKandT> remember to take into account acceleration when running a program at full speed...
[17:43:53] <skunkKandT> I was counter sinking some holes with a 3/8 mill - and it ran great with mv slowed down.. but at top speed it cut the corner enough to mill a angle at the top of each hole.. ';)
[17:45:09] <skunkKandT> nothing g64p.005 can't fix
[17:45:14] <Tom_itx> add more z clear?
[17:45:20] <skunkKandT> yes dad
[17:45:21] <Tom_itx> or slow down
[17:45:23] <skunkKandT> ;)
[17:45:30] <Tom_itx> figure which is quicker
[17:45:53] <skunkKandT> dad said the same thing....
[17:46:00] <Tom_itx> heh
[17:46:17] <Tom_itx> i think the z clear would be quicker
[17:47:22] <skunkKandT> probably - but adding g64 was quicker programmically... I only have 16 parts (4 holes per part)
[17:47:38] <JT-Shop> does g64 p do anything during a rapid move?
[17:47:42] <Tom_itx> the thing i run into (literally) is taking into account for clamps or holddown screws etc in the model and hitting them irl
[17:47:59] <Tom_itx> and still being able to run most efficiently
[17:48:27] <Tom_itx> i suppose alot of you don't use cad cam though
[17:48:40] <Tom_itx> for some things
[17:49:03] <skunkKandT> right
[17:49:55] <skunkKandT> I don't think there is any difference in trajectory planning between rapids and cutting. If I under stand it correctly in emc
[17:50:17] <skunkKandT> I can tell you in a few minutes though ;)
[17:50:19] <Tom_itx> probably not
[17:50:38] <Tom_itx> but in a model you don't always remember to look for that
[17:50:59] <Tom_itx> especially when you reorder cuts for efficiency
[17:52:04] <skunkKandT> well - looking at the other rapids - they all look pretty square now..
[17:52:44] <skunkKandT> yep - fixed it
[17:52:59] * skunkKandT hugs emc again
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[18:02:31] <JT-Shop> only thing left for the BP is an air drop :)
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[18:45:27] <rob_h> its nice to fit things after stripping most of it out.. :) http://linuxcnc.org/index.php/english/component/kunena/?func=view&catid=30&id=14077#16159
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[18:46:21] <IchGucksLive> hi all and happy new yeart to all ho joint already
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[18:57:30] <JT-Shop> rob_h: looking good mate :)
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[19:11:27] <Tom_itx> JT-Shop, link to your new gcode help?
[19:12:00] <JT-Shop> Tom_itx: I'm confused... what's new
[19:12:43] <Tom_itx> the one we were critiquing
[19:13:53] <JT-Shop> ah, yes it looks much better I think now... might take another gander at it if you have time
[19:14:52] * JT-Shop goes to play with with the other children... and blow things up
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[19:31:25] <skunkKandT> rob_h: Very nice1
[19:31:27] <skunkKandT> !
[19:31:43] * skunkKandT really needs to get the lathe up and runnning
[19:35:01] <rob_h> i cant wait to get making a mess on it again :)
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[19:49:17] <emcrules> JT-Shop: 1 100 mf start cap
[19:50:33] <emcrules> I can email you a pic of the enclosure
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[20:11:19] <mazafaka> heh, already a 3:00 AM of 2012 :)
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[20:27:42] <A2Sheds> mazafaka: are you sure, it's supposed to be the end of the world
[20:27:57] <A2Sheds> again
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[21:45:56] <Tom_itx> JT-Shop, let me rephrase that. can i have the link to the gcode file
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[23:03:26] <Nick001-Shop> How do I make an incremental (0.0001) change to a lathe tool offset for tool wear?
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[23:14:48] <i_tarzan> manual?
[23:15:33] <Nick001-Shop> yes
[23:17:33] <i_tarzan> that measure is used for tool feed, not for tool sharpening
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[23:27:39] <Nick001-Shop> If the dia need to go down 0.001, is the an easy way of changing the value in the tool table
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[23:30:29] <rob_h> u have to work out new value your self, no inc change button on tool table program afrade dont forget if u in radius or diamiter mode
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