#linuxcnc | Logs for 2013-05-04

[00:00:22] <PetefromTn> Can't go in the shop right now because it stinks of epoxy paint so I am stuck doing something else LOL...
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[00:06:43] <PetefromTn> Connor: Hey man wazzyup?
[00:06:59] <Connor> Working on a website for a client.
[00:07:58] <PetefromTn> Did you get the rigid tap sorted on your CNC?
[00:08:02] -!- ravenlock [ravenlock!~ravenlock@enlightenment/developer/ravenlock] has joined #linuxcnc
[00:08:29] <Connor> It works.. But I need some spiral Flute taps..
[00:09:10] <PetefromTn> I got a couple LOL...
[00:09:49] <Connor> Yea.. I need to get some to test with.. wouldn't want to break yours.
[00:11:19] <PetefromTn> I still have the 3/8-16 spiral flute I used in the RF45 CNC floating tap head videos I made LOL...
[00:11:35] <Connor> how does backlash affect rigid tapping ?
[00:12:59] <PetefromTn> It doesn't like it LOL....
[00:13:10] <archivist> Connor, I would not contemplate rigid tapping with backlash
[00:13:31] <PetefromTn> How much backlash ya got?
[00:13:43] <PCW> probably a big tap would pull the work
[00:13:48] <Connor> I haven't checked it in a whie on the Z
[00:13:48] <archivist> a floating holder would help there
[00:14:27] <PetefromTn> yup floater...
[00:14:38] <Connor> Didn't seam to cause any issues when i tested 1/4-20 on MDF.. but.. then again.. mdf isn't that strong
[00:14:46] <PCW> I mean push on Z when retracting (backlash is sort of floating)
[00:15:06] <PetefromTn> I originally tapped in some 1/4 inch plastic that was not held too rigidly...
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[00:16:37] <Connor> I think I'm going to finish up the PDB mount.. may even try to do it this weekend.
[00:16:48] <Connor> going to use Alum for the lift plate..
[00:17:30] <Connor> I need to do some calculations.. because the design is slightly different than Hoss's.. I'm not going to bother with a top plate since my air cylinder already has one basicly..
[00:17:58] <PetefromTn> forget Hoss....make a CONNOR SPECIAL!!
[00:18:17] <Connor> I use his plans and stuff as "guide lines"
[00:19:22] <PetefromTn> gotta blaze your own trail man...
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[00:20:27] <Connor> I need to cut my draw bar down.. so I don't have 4" sticking up..
[00:20:57] <PetefromTn> yup 4" whippin around can be distracting......and noisy.....and dangerous LOL
[00:21:01] <Connor> I'm not sure I like the idea of using just lock tight to hold the lug nut on it..
[00:21:17] <PetefromTn> I can Tig it on fer ya if ya want....
[00:21:45] <Connor> I was thinking of cross drilling it.. and pinning it.. but,, not sure how hard that would be..
[00:22:19] <PetefromTn> Dunno man never seen the setup. Tig is permanent,obviously
[00:23:35] <Connor> basicly a lug nut on the 7/16 Threaded Rod.. I think it's 7/16.. what ever R8 thread size is..
[00:23:53] <Connor> It's a high grade threaded rod.. not your home depot grade.
[00:24:01] <PetefromTn> yeah I think it is 7/16 as I recall...
[00:24:09] <PetefromTn> well I hope so...
[00:24:34] <Connor> screw the lug nut so that it's flush with the top of the rod.. or just slightly below and call it good.
[00:24:55] <PetefromTn> You can drill it thru the nut and I can button weld it kinda
[00:25:00] <Connor> PetefromTn: What I *DO* need is the pulleys re-done.
[00:25:18] <PetefromTn> How so?
[00:25:29] <Connor> The run-out sucks.
[00:25:51] <Connor> I purchased two new ones so we can turn them down later on on your lathe.. vs my dinky little crap one.
[00:26:17] <PetefromTn> cando...
[00:26:19] <Connor> not to mention, I didn't chuck them right.. I didn't realize the flanges were press fit..
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[00:27:32] <PetefromTn> It's gonna be so cool to see the flood coolant running tomorrow on my monster...
[00:27:52] <Connor> also need to buy a 4" chuck and adapter plate so I can use my little 4' rotary table.. I made one from flat alum kinda for my 3" but could never get it 100% true.
[00:27:57] <Connor> I bet.
[00:28:14] <generic_nick|2> get ready for the mess! lol
[00:28:50] <PetefromTn> Hell I'm used to the mess.... This machine is actually quite easy to clean out thoo..
[00:29:10] <generic_nick|2> nice. what is it?
[00:29:12] <generic_nick|2> http://farm9.staticflickr.com/8395/8704736685_63028c81dd_c.jpg
[00:30:00] <PetefromTn> skateboard truck?
[00:33:25] <generic_nick|2> yes
[00:33:42] <generic_nick|2> i meant what is your mill
[00:33:53] <Jymmm> coffee
[00:34:03] <PetefromTn> mine?
[00:34:23] <generic_nick|2> yes
[00:34:47] <PetefromTn> It is a Cincinatti Arrow 500 VMC 1994
[00:35:09] <generic_nick|2> cool
[00:35:26] <PetefromTn> Yeah I hope it will be soon LOL... so far it has been a PIA.
[00:35:37] <generic_nick|2> lol they all are
[00:36:48] <generic_nick|2> mine is a PITA right now.... just swapped out my 7i33 for a 7i48 and at least one axis is running away.
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[00:37:08] <generic_nick|2> hoping i just reversed the analog out wires
[00:37:14] <generic_nick|2> or encoder wires
[00:37:14] <Connor> generic_nick|2: What do you have ?
[00:37:24] <generic_nick|2> shizuoka ans
[00:37:48] <PetefromTn> love the Shiz..
[00:37:58] <PetefromTn> toolchanger?
[00:38:05] <generic_nick|2> cant complain too much for a knee mill
[00:38:06] <generic_nick|2> yes
[00:38:13] <PetefromTn> SWEET
[00:38:17] <generic_nick|2> quickdraw II
[00:38:32] <generic_nick|2> a little flakey but works most of the time
[00:38:48] <Connor> any pictures ?
[00:39:33] <generic_nick|2> closest i have on this computer to pictures. http://www.youtube.com/watch?v=h_iJe436esA
[00:39:38] <Tecan> (h_iJe436esA) "Shizuoka running on emc2" by "jeepinSD" is "Comedy" - Length: 0:00:51
[00:40:14] <PetefromTn> is that the infamous "tool chucker" LOL
[00:40:20] <generic_nick|2> lol yea
[00:40:31] <generic_nick|2> doesnt chuck tools much anymore
[00:40:31] <Connor> tool chucker ?
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[00:40:56] <PetefromTn> Connor: Yup they were known to sometimes throw toolholders under the original control LOL
[00:41:08] <generic_nick|2> i gutted all the electronics and fitted it with SSR's and did the logic in classicladder
[00:41:16] <Connor> Eep. That's not good
[00:41:31] <PetefromTn> You da man..... Now I know who to talk to about my toolchanger LOL
[00:41:38] <generic_nick|2> replaced the big pneumatic/hydo cylinder with an electric linear actuator
[00:42:06] <generic_nick|2> haha, sure, but i really dont know what i'm doing lol
[00:42:24] <generic_nick|2> i need to upgrade to a vmc.
[00:42:39] <generic_nick|2> moving into a new shop so ill have room for it soon
[00:43:06] <PetefromTn> ya making bicycle parts?
[00:43:14] <generic_nick|2> was
[00:43:29] <PetefromTn> sweet.
[00:44:04] <PetefromTn> I have a SWB USS custom built recumbent bike I ride LOL...
[00:44:18] <generic_nick|2> nice
[00:45:55] <PetefromTn> yup it screams downhill LOL...
[00:46:09] <PetefromTn> that thing cat30?
[00:46:19] <generic_nick|2> nmbt40
[00:46:36] <PetefromTn> huh....does it use retention knobs?
[00:46:48] <generic_nick|2> nope, drawbar
[00:46:55] <PetefromTn> wow...
[00:47:17] <PetefromTn> How is the drawbar actuated, with your linear actuator?
[00:47:26] <generic_nick|2> fairly common
[00:47:46] <generic_nick|2> no, it's like a power drawbar for a bridgeport.
[00:47:53] <generic_nick|2> impact gun and an air cyl
[00:47:55] <PetefromTn> impact?
[00:47:59] <PetefromTn> LOL
[00:48:17] <generic_nick|2> it litterally is an electric impact gun with the handle cut off and hard wired
[00:48:27] <PetefromTn> dja make that?
[00:48:28] <generic_nick|2> i get replacements at harbor freight
[00:48:36] <generic_nick|2> nope, factory lol
[00:48:44] <PetefromTn> cool...
[00:49:01] <generic_nick|2> it works pretty good
[00:49:04] <PetefromTn> Glad my machine came with all that LOL... just gotta figure out how to make it work with LinuxCNC/Mesa
[00:49:28] <generic_nick|2> so did mine, i just changed it some as the years went on and stuff wore out
[00:49:39] <PetefromTn> Need to find a suitable 25 ohm braking resistor for the Z axis on mine...
[00:50:00] <generic_nick|2> stove burner?
[00:50:01] <PetefromTn> Im sure it did, nice machines from most accounts...
[00:50:29] <PetefromTn> Actually I used a water heater element for my Spindle drive brake and it worked great...
[00:50:43] <PetefromTn> Stops right now LOL...
[00:50:43] <generic_nick|2> nice
[00:50:59] <generic_nick|2> i got some huge resistors at the surplus yard down the road
[00:51:09] <generic_nick|2> they're like 2.2kw
[00:52:05] <PetefromTn> Solar Impulse is just southwest of Lake Havasu City...
[00:52:32] <PetefromTn> What's the resistance?
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[00:53:40] <PetefromTn> How many holders ya got ?
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[00:54:38] <Connor> PetefromTn: You still getting the sserial errors ?
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[00:55:05] <PetefromTn> Honestly I dunno have not even turned it on in a week or two... Been futzing with the troughs...
[00:55:32] <PetefromTn> I don't think so tho, only errors are from the spindle noise issues..
[01:01:10] <PetefromTn> Gettin' bored... wish I could mill something LOL
[01:05:09] <generic_nick|2> 24 holders
[01:06:02] <generic_nick|2> hmmm pcw_home: i just swapped out my 7i33 for a 7i48 and now i'm getting heavy occilation
[01:06:12] <generic_nick|2> do i need to completely retune this thing?
[01:08:59] <PetefromTn> damn I hope not ...
[01:12:03] <generic_nick|2> its weird, y seems ok, but x and z dont
[01:12:27] <generic_nick|2> they were fine before
[01:16:59] <generic_nick|2> i have the pwm frequency set at 24000
[01:21:00] <generic_nick|2> it's getting better with tuning. i had to cut the p and i in half basically
[01:21:45] <PetefromTn> man I suck at PID tuning...
[01:22:10] <generic_nick|2> me too
[01:22:12] <r00t4rd3d> http://i.imgur.com/amPSmUb.jpg
[01:22:19] <generic_nick|2> mainly just guess work for me
[01:22:38] <skunkworks> Me too - me too
[01:22:45] <generic_nick|2> cool!
[01:23:19] <skunkworks> But it doesn't have to be perfect....
[01:23:30] <generic_nick|2> got my 4th axis all ready to go. just gotta plug it in and wire the home switch
[01:23:44] <generic_nick|2> was hoping to test it tonight
[01:23:57] <r00t4rd3d> how i use my cnc
[01:24:24] <r00t4rd3d> https://www.youtube.com/watch?v=07Y0cy-nvAg
[01:24:28] <r00t4rd3d> tecan!
[01:24:30] <skunkworks> this was a first try... http://youtu.be/FgOqEz5Tk-Y
[01:24:34] <Tecan> (FgOqEz5Tk-Y) "Kearney and Trecker first closed loop movement with EMC2." by "samcoinc" is "Education" - Length: 0:00:14
[01:24:56] <PetefromTn> sweet.....make me one LL
[01:30:50] <generic_nick|2> i cant put any ff1 into this thing
[01:31:20] <generic_nick|2> even of i have .01 ff1 it over travels
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[01:35:52] <PetefromTn> whats your setup for testing the overtravel?
[01:36:21] <generic_nick|2> watching the motors lol
[01:36:33] <generic_nick|2> i got it somewhat decent, i think i'm going to run with it
[01:36:56] <generic_nick|2> time to set the hal and ini up for the 4th axis
[01:37:35] <PetefromTn> get it done man....and post vids.
[01:42:12] <generic_nick|2> spindle isnt changing rpm's
[01:42:17] <generic_nick|2> hmmm
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[01:50:37] <andypugh> 99% of the controllers in the world have no FF1
[01:51:13] <andypugh> But, depending on the units, 0.000001 might be correct.
[01:51:53] <andypugh> It's just numbers, and sometimes they come out little.
[01:56:24] <generic_nick|2> yea it ran fine without it, i was just told my pcw that it needed it so i thought id try it
[01:57:18] <andypugh> Reading Back. Connor: I wouldn't take Hoss as Gospel. He is certainly self-confident, but there are better engineers.
[02:00:03] <andypugh> Impact gun-drawbars work well, and probably clamp tighter than any of the spring ones. However is it possible to make your own spring-style drawbar that fits down a standard drawbar bore. http://www.youtube.com/watch?v=pxrzJ_KfcQ0
[02:00:06] <Tecan> (pxrzJ_KfcQ0) "Harrison retrofit automatic drawbar" by "andy pugh" is "Tech" - Length: 0:01:27
[02:01:59] <Connor> andypugh: Agreed.. Which is why I said I use his stuff as guide lines.. and sometimes not even then.
[02:02:32] <PetefromTn> That looks amazing and difficult to build at best LOL
[02:03:15] <PetefromTn> Actually looking at it again not so much... sweet setup.
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[02:04:09] <PetefromTn> Just peeled the tape off the troughs, almost passed out from the fumes LOL. Gonna take the tape off the other one in the AM I think.
[02:06:28] <andypugh> PetefromTn: The "clever" bit was making the finger-collet. I clamped 4 pieces of square tool-steel together in a 4-jaw chuck, and machined as one (there was a pressed-on collar for some operartions). So, the collet was split before machining, not after: http://www.youtube.com/watch?v=IJ9qVexXirk
[02:06:31] <Tecan> (IJ9qVexXirk) "Machining a split collet" by "andy pugh" is "Tech" - Length: 0:01:01
[02:07:51] <ssi> evening folks
[02:08:03] <andypugh> Morning
[02:09:47] <Tom_itx> g'day
[02:10:59] <PetefromTn> sup..
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[02:11:22] <PetefromTn> andypugh: Hey man that is just poetry, Nice work.
[02:12:01] <PetefromTn> I think I have a head rush from paint fumes fellas... seeing pink hippos in dancing tutus.
[02:12:38] <andypugh> That paint has to have a "street price"
[02:13:02] <PetefromTn> Yeah man I can hook you up, got about 3/4 gallon left...
[02:13:23] <PetefromTn> Should be enough to lunch your bean for at least a few days if not forever.
[02:13:48] <andypugh> Did I mention that one of my eBay auctions went a bit wierd in the questions?
[02:13:57] <Tom_itx> saw that
[02:14:40] <andypugh> Also, the evidence is that nobody on eBay buys HSK taper tooling
[02:15:59] <PetefromTn> huh?
[02:17:26] <andypugh> I am selling BT40, BT50, DIN40, Din50, 40INT, Flash-change40 and HSK tools that I bought in a job-lot. Only the HSK have no watchers.
[02:19:09] <ssi> it has not been a productive day :(
[02:19:47] <toastydeath> anyone who runs an hsk machine probably doesn't trust used holders
[02:20:06] <toastydeath> i know i wouldn't
[02:20:21] <PetefromTn> ssi: sorry dude..
[02:20:50] <ssi> I just now got home
[02:21:03] <ssi> I want to get the files backed up off my win/mach3 plasma box
[02:21:07] <ssi> and install linuxcnc on it
[02:21:14] <ssi> but I can't get the monitor to wake up on it :(
[02:24:27] <Gamma-x> hey guys
[02:24:47] <ssi> hey gamma
[02:24:50] <Gamma-x> finally got my machine runnin!
[02:24:53] <ssi> woooo
[02:25:06] <Gamma-x> starting to wish I went with the servo route!
[02:25:12] <ssi> why's that
[02:25:39] <Gamma-x> cant seem to get all the settings rite for the stepper configs....
[02:25:52] <Gamma-x> speed/ velocity, length etc.
[02:26:31] <ssi> you think servos are easier? :D
[02:26:34] <jdh> heh
[02:27:06] <Gamma-x> lol
[02:27:31] <ssi> I think a person's first machine being steppers is not a bad thing :)
[02:27:37] <Gamma-x> well im getting a lot of studdering and my delron couplers are not standing up!
[02:27:52] <Tom_itx> use steel couplers
[02:28:04] <ssi> lovejoy couplers
[02:28:07] <Gamma-x> need to find some
[02:28:13] <Gamma-x> Tom_itx, have a source?
[02:28:15] <ssi> mcmaster.ceom
[02:28:19] <Tom_itx> ^^
[02:28:25] <Tom_itx> or sdi
[02:28:30] <Gamma-x> sdi?
[02:28:33] <jdh> lovejoys always seem to have lash in the spider
[02:28:33] <ssi> mcmaster.com should be bookmarked in your browser
[02:28:36] <Tom_itx> stock drive products
[02:28:38] <generic_nick|2> i had lovejoy couplers on my mill for a while
[02:28:39] <ssi> under "buy all your machine parts here plz"
[02:28:41] <generic_nick|2> they worked fine
[02:28:58] <jdh> mcmaster has oldham couplers
[02:29:06] <ssi> the lovejoys I've used have tight spiders that don't have noticable lash
[02:29:07] <Tom_itx> sdp-si sry
[02:29:13] <ssi> certainly less than the screws they're driving in most cases :)
[02:29:18] <ssi> oldham works too
[02:29:24] <ssi> but I think lovejoys are probably more affordable
[02:30:00] <Tom_itx> https://sdp-si.com/eStore/CoverPg/Couplings.htm
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[02:30:32] <jdh> saving $20 on couplings isn't really worthwhile if you are spending a couple $k
[02:31:13] <ssi> oldhams also don't tolerate angular misalignment quite as well
[02:31:21] <ssi> but they do tolerate lateral misalignment well
[02:33:28] <Gamma-x> wow sdp-si has ALOT of couplings...
[02:33:40] <Gamma-x> Tom_itx, which one would have the most grip?
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[02:35:06] <Tom_itx> depends what you need
[02:35:24] <generic_nick|2> hmmm looks like i just have to figure out my enable for the a axis.
[02:36:04] <Tom_itx> mine are hard couplers and i haven't had any problems with them
[02:36:09] <Tom_itx> you need to get them aligned
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[02:53:04] <ssi> hooray
[02:53:08] <ssi> got the stupid winblows box to boot
[02:54:14] <generic_nick|2> cant believe the only thing holding me up on my 4th axis is the enable pin lol
[02:55:55] <generic_nick|2> one other issue, the encoder counts per degree are not a round number. it's like 600.666666666666666666666666666666666666666666666
[02:56:17] <generic_nick|2> anyone have a trick to make it not be off after x amount of revs?
[03:01:37] <Gamma-x> jesus
[03:01:46] <pcw_home> generic_nick|2 on the 7I48 did you set PWM mode to 2?
[03:01:46] <Gamma-x> mcmaster has sooooo many types of couplings.
[03:02:36] <ssi> Gamma-x: yep
[03:02:41] <ssi> Gamma-x: what part of the world do you live in?
[03:02:51] <Gamma-x> ssi, denver co
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[03:07:00] <ssi> you should be able to get stuff from mcmaster 2 day by default, if not overnight
[03:07:45] <Gamma-x> ssi, just gotta figure out what kind of coupler i need!
[03:08:19] <Gamma-x> i want\\ them to fit directly onto partly flattened shaft....
[03:08:27] <Gamma-x> http://www.automationtechnologiesinc.com/products-page/nema-23/nema-23-three_eighths-inch-dual-shaft-with-a-flat-570-oz-in
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[03:09:02] <Gamma-x> and http://www.automationtechnologiesinc.com/products-page/nema-34/nema34-stepper-motor%E2%80%931200ozin-6amp-single-shaftkl34h2120-60-4a-key
[03:09:25] <ssi> anything with a 3/8" bore and a setscrew should be fine
[03:11:19] <Gamma-x> my ball screw is 16mm....
[03:12:15] <ssi> 16mm where the couplers attach?
[03:12:19] <ssi> are the ends turned?
[03:12:27] <ssi> or are you trying to couple directly to ballscrew races?
[03:13:15] <Gamma-x> the ends are turned...
[03:13:20] <ssi> to 16mm?
[03:13:22] <Gamma-x> to 16mm
[03:13:38] <ssi> so the trick is finding a two piece coupler
[03:13:47] <ssi> that offers both 16mm and 3/8 bore sizes
[03:14:09] <ssi> 16mm is pretty close to 5/8"
[03:14:20] <ssi> http://www.mcmaster.com/#standard-shaft-couplings/=mli3gq
[03:14:23] <ssi> olhams
[03:14:28] <ssi> get a 3/8 and a 5/8
[03:14:35] <ssi> you might need to ream the 5/8 out to 16mm
[03:14:39] <jdh> dont' they have metric?
[03:14:39] <ssi> but it's only .004" difference
[03:14:41] <ssi> so should be close
[03:15:31] <ssi> looks like you want the P size
[03:15:44] <generic_nick|2> yes pcw_home
[03:15:51] <generic_nick|2> i just had to retune it
[03:16:15] <generic_nick|2> pcw_home: stumped on enabling my servo drive
[03:16:27] <ssi> generic_nick|2: what's the drive?
[03:17:21] <generic_nick|2> pac sci, but it isnt the drive, it's the enable pin on the 7i48
[03:17:31] <generic_nick|2> it isnt turning on
[03:17:37] <generic_nick|2> it did on the 7i33
[03:18:07] <pcw_home> The 7I48 has 6 uncommitted OPTO outputs for drive enables
[03:18:53] <pcw_home> basically switches though polarized and limited to I think 15 mA
[03:19:07] <generic_nick|2> pcw_home: when i talked to you on the phone a while back you mentioned something about the first and last pins having to be true when i checked them in dmesg
[03:19:20] <ssi> looks like you have to wire a pin to the enable inputs and pull them down?
[03:19:20] <tjtr33> for special sizes, ask the guys at mcmaster, they can get stuff not listed in catalog.
[03:19:38] <generic_nick|2> they are false with emc turned on
[03:19:38] <ssi> oh from the fpga never mind
[03:19:59] <generic_nick|2> it's a config issue, not wiring
[03:20:06] <pcw_home> If you have analog outputs, the enables _are_ on
[03:20:33] <pcw_home> it is most likely a wiring issue
[03:20:37] <generic_nick|2> hmmm
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[03:21:12] <generic_nick|2> oh so the enable pins on the 7i48 do not put out 5v like the 7i33?
[03:21:51] <pcw_home> No they are OPTO outputs (polarized switches)
[03:21:57] <generic_nick|2> ah
[03:22:07] <generic_nick|2> thats the problem then
[03:22:11] <generic_nick|2> thanks
[03:25:16] <ssi> startin to make some progress :D
[03:25:37] <ssi> jthornton: around perchance?
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[03:29:22] <ssi> pcw_home: I really appreciate the fact that you're happy that your customers hack on your products
[03:29:48] <ssi> I'm looking at this THC product I have, and it'd be trivially easy to make it possible to have linuxcnc control and display the arc voltage settings
[03:30:02] <ssi> but I doubt they'll be hacker friendly enough to make it practical
[03:30:15] <ssi> likely because I think they have more expensive products they would rather you buy with those features
[03:30:34] <Gamma-x> too many options...
[03:30:44] <Gamma-x> and som e are toooo expensive!
[03:33:24] <ssi> sweet, this machine has reasonable latency numbers
[03:33:26] <Gamma-x> anyone wanna make some cash by turning me some couplers?
[03:33:29] <pcw_home> Thats why we made a very simple THC for LInuxCNC, so LinuxCNC can do the control and then you can
[03:33:31] <pcw_home> add features as needed, not being locked into what the external hardware can do
[03:33:42] <ssi> pcw_home: I may end up buying that if this thing gives me any trouble
[03:34:06] <ssi> I bought this one because it was inexpensive and I was in mach3 land back then
[03:34:15] <ssi> a land I'm happy I expatriated from :D
[03:34:32] <ssi> oh jeez maybe it doesnt' have decent latency :P
[03:34:46] <ssi> couple of 225us spikes
[03:34:56] <pcw_home> oops
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[03:35:18] <ssi> although that shouldn't be the end of the world with mesa doing the stepgen
[03:35:41] <ssi> mornin mhaberler :D
[03:37:43] <ssi> ugh I should just order another cheapy dell
[03:38:23] <ReadError> ssi: microcenter has refurbs cheap all the time
[03:38:37] <ssi> last one I ordered from tigerdirect, off lease opti 755 for $199
[03:38:47] <ssi> and it has great latency numbers
[03:38:48] <ssi> 17us or so
[03:39:10] <ssi> network doesn't seem to work on this stupid little lenovo box
[03:40:08] <generic_nick|2> yay, the 4th axis works!
[03:40:12] <ssi> sweet :D
[03:41:16] <generic_nick|2> there are a few issues.... first is the pid values are extremely low in order to get rid of occilation. not sure it's going to have the holding torque i need with the values that low.
[03:43:48] <generic_nick|2> secondly, i gotta figure out the velocity and acceleration rates. guess i gotta do some homework on that. the max velocity is set at 300, which is fine for the xy and z axis, but that seems to equate to 300 degrees a minute as well, which is slow as hell
[03:44:17] <ssi> generic_nick|2: there's a master max velocity, and a per axis max velocity
[03:44:50] <ssi> so the network on this thing, the link is flapping up and down
[03:45:04] <ssi> it's a tg3, and I get a link up at 1000mbps, link down over and over in dmseg
[03:45:09] <ssi> extra lame
[03:45:26] <generic_nick|2> yea, i have that set, but the sliders are in ipm so not sure how that will work with the 4th axis
[03:46:11] <ssi> http://www.linuxcnc.org/docs/devel/html/config/ini_config.html
[03:46:19] <ssi> MAX_LINEAR_VELOCITY = 1.0 - The maximum velocity for linear jogs, in machine units per second.
[03:46:23] <ssi> MAX_ANGULAR_VELOCITY = 1.0 - The maximum velocity for angular jogs, in machine units per second.
[03:46:56] <ssi> dunno what the machine units are for angle
[03:46:58] <ssi> but I guess degrees
[03:51:32] <Gamma-x> I think im going to have to make my own couplings...
[03:54:10] <ssi> why
[03:55:38] <generic_nick|2> thanks ssi, thats what i was looking for
[03:55:56] <generic_nick|2> i got the 4th axis spinning at 8500 degrees per minute
[03:56:18] <generic_nick|2> still a bunch of tuning to do, but it's a start
[03:56:40] <ssi> sweet
[03:56:54] <ssi> 140 degrees per second
[03:57:13] <ssi> shit my RV should roll twice that fast ;)
[03:57:16] <Gamma-x> ssi, just no ones with right size....
[03:57:31] <ssi> I told you what to get
[03:58:08] <Gamma-x> the oldhams?
[03:58:11] <Gamma-x> I dont trust em...
[03:58:35] <Gamma-x> and I need one that I can buy 1/2 x 16mm with keyway
[03:58:52] <Gamma-x> I can buy that one ^^^
[04:00:34] <mhaberler> good morning Ian
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[04:02:40] <generic_nick|2> that worked like a charm ssi. now the sliders are right.
[04:03:53] <generic_nick|2> just gotta do some tuning over the weekend and it's good to go. still gotta get it on the mill and wire up the home switch, but that's easy.
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[04:11:49] <Gamma-x> ssi, for 30 bucks I can get machinable couplings.
[04:12:09] <Gamma-x> http://www.mcmaster.com/#standard-shaft-couplings/=mlitnh
[04:14:00] <ssi> have at it
[04:14:09] <ssi> I've done all the helping I care to on that one :)
[04:14:30] <Gamma-x> lol I just want something that WONT slip at all!
[04:14:45] <Gamma-x> I appreciate the assistance
[04:15:02] <PetefromTn> nitey nite dudes....
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[04:28:01] <ssi> build faster, kernel!
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[05:58:31] <ssi> mhaberler: I can blink the userleds by manipulating GPIO1 using /dev/mem mmaped
[05:59:11] <mhaberler> excellent!
[05:59:30] <mhaberler> so you figured the piinmux mysteries
[05:59:44] <ssi> I haven't had to do anything with pinmux yet
[06:00:02] <ssi> I messed around with the export/unexport sysfs stuff
[06:00:05] <ssi> and that all works
[06:00:10] <ssi> can flash the LEDs from sysfs
[06:00:20] <mhaberler> well I guess it's behind the scenes if you use the sysfs exports write method
[06:00:44] <ssi> I'll get to where I can change the direction of the pin using /dev/mem
[06:00:49] <ssi> but I'm not there yet :)
[06:01:19] <ssi> now, when the hal driver is loaded, is there gonna be a conf string that describes all the pins that will be used?
[06:01:23] <ssi> I'm not sure how that'd look exactly
[06:05:15] <mhaberler> I would assume this is the way to go, yes, hex and all :-/
[06:05:36] <mhaberler> maybe choose a default which excludes the stepgen gpio's
[06:05:54] <ssi> we'll need to come up with a couple configurations
[06:05:55] <mhaberler> or a integer pin list
[06:06:04] <ssi> excluding/including stepgens, hdmi, usd
[06:06:23] <ssi> er, emmc rather
[06:06:43] <mhaberler> well stepgen pins might change, but yes I see what you mean
[06:07:03] <ssi> some folks won't want to disable hdmi for instance, but others might
[06:07:11] <mhaberler> I thought one could dig that from sysfs (hdmi, emmc used)
[06:07:53] <mhaberler> (btw xenomai 3.8 kernel in the works; some simple goof on my behalf left to resolve)
[06:08:02] <ssi> oh nice
[06:08:12] <mhaberler> a few days at most
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[06:10:38] <ssi> so it looks like there's no conflicts on P9
[06:10:48] <mhaberler> P9..?
[06:11:08] <ssi> the P9 expansion connector
[06:11:19] <ssi> P8 connector has the MMC0 and the LCD pin conflicts
[06:11:21] <mhaberler> you're using 3.8x now I assume?
[06:11:23] <mhaberler> aja
[06:11:24] <ssi> yes
[06:11:25] <ssi> 3.8.10
[06:11:36] <ssi> P9 has 25 gpios available
[06:11:41] <mhaberler> good, that will be a drop-in then
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[06:13:02] <ssi> so a little tip
[06:13:17] <ssi> if you want to play with GPIOs using the user leds
[06:13:22] <ssi> at least using sysfs
[06:13:30] <ssi> you can't on a kernel that has gpio_leds built in
[06:13:38] <ssi> it grabs them and won't let go
[06:13:44] <mhaberler> I see
[06:13:44] <ssi> I built a kernel with gpio_leds as a module
[06:13:58] <mhaberler> aja, ok, will keep it in mind
[06:13:58] <ssi> I imagine I could probably muck with them directly using memory access
[06:14:03] <mhaberler> nah
[06:14:30] <mhaberler> but that'd be a good test case for the driver, wiggle the leds
[06:14:38] <mhaberler> no wiring required
[06:14:39] <ssi> yeah that's where I'm starting
[06:14:40] <ssi> cause it's easy
[06:14:48] <ssi> although I'm about to put a scope on a pin and wiggle it
[06:15:01] <ssi> and then maybe fly a lead from 3v3 back around and try inputs
[06:15:18] <mhaberler> wiggling a pin from the PRU and scoping that is really impressive ;)
[06:15:25] <ssi> I bet
[06:15:32] <ssi> what is it, 200khz you can get on that thing?
[06:16:06] <mhaberler> ah, direct wiggling, much higher - 25 Mhz or so
[06:16:25] <mhaberler> not sure what the delays are exactly, Charles would know
[06:16:51] <mhaberler> he tends to find the right page in the 3000+pages TRM clunker
[06:18:07] <mhaberler> it depends if one goes through the crossconnect or the directly PRU addressable pins; the latter are a subset of the former but much faster
[06:19:59] <mhaberler> at some point I'll excerpt the linux kernel bitmap library for linuxcnc use; great but kernel-only as-is, so needs massage for userland code
[06:20:39] <mhaberler> http://lxr.free-electrons.com/source/include/linux/bitmap.h , http://lwn.net/Articles/359084/
[06:22:39] <ssi> gah my scope has started making a high pitched tone when it's powered up
[06:22:44] <ssi> usually it goes away after a few minutes
[06:22:46] <ssi> tonight it's persistent
[06:22:54] <ssi> plus the front panel is dying, and fails the fp self-test
[06:24:18] <ssi> there it goes, finally
[06:26:17] <Gamma-x> With my stepper configuration and BOB.... can I hook up a pendant directly to the bob and have the changes be displayed on linuxcnc?
[06:30:21] <ssi> mhaberler: hm according to a blog post I found, you can inspect and set the pinmux modes using a sysfs file
[06:30:24] <ssi> but I don't seem to have it
[06:30:56] <mhaberler> yes, that works but likely you dont have to, yes
[06:31:03] <mhaberler> probably also no dtb magic
[06:31:19] <ssi> i guess I need to dive in and figure out the pinmux memory registers
[06:31:22] <ssi> scary scary stuff :)
[06:32:49] <ssi> ohhh
[06:32:50] <ssi> mount -t debugfs none /sys/kernel/debug
[06:35:08] <mhaberler> and that gives you?
[06:36:00] <mhaberler> ah..
[06:36:16] <mhaberler> intestines
[06:37:39] <ssi> I still don't have the omap_mux stuff
[06:37:42] <ssi> but I have some interesting things
[06:38:47] <ssi> well I wasn't gonna stay up super late tonight
[06:38:48] <ssi> but then I did
[06:38:51] <ssi> so now I sleep :)
[06:40:07] <mhaberler> fair enough; working coffee mug #3 here ;)
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[06:51:45] <DJ9DJ> moin
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[07:41:42] <Loetmichel> mornin'
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[09:33:50] <mazafaka> mornin Loetmichel
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[10:40:10] <carper64_lb_> morning gents
[10:40:28] <jthornton> morning guys
[10:42:46] <mazafaka> morning brothers
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[11:51:14] <carper64_lb_> just looking at either a touch off or optical setting for manual tool changes using a quick change tool block on the lathe
[11:51:44] <carper64_lb_> any body done one ?
[11:54:15] <carper64_lb_> this was one idea i liked
[11:54:19] <carper64_lb_> http://www.youtube.com/watch?v=s4xEo5GcXHk
[11:54:22] <mhaberler> maybe you can adapt the example in master: http://git.linuxcnc.org/gitweb?p=linuxcnc.git;a=tree;f=configs/sim/remap/manual-toolchange-with-tool-length-switch;h=2d643d6390d562766d456d84da8ebe0498b174c0;hb=863a7284dc2eb9e5892aacff8315ae6fdccf8311
[11:54:22] <Tecan> (s4xEo5GcXHk) "Haas Automatic Tool Presetter How To" by "haasautomation" is "Tech" - Length: 0:07:13
[11:57:22] <carper64_lb_> this was the other idea but using the cam in linuxcnc http://www.youtube.com/watch?v=zb0IQPHbU0g
[11:57:23] <Tecan> (zb0IQPHbU0g) "DIY Optical tool setter for a Haas lathe" by "MuellerNick" is "Tech" - Length: 0:03:45
[11:58:00] <carper64_lb_> any thoughts on them ?
[12:00:44] <carper64_lb_> the thing ive thouht of using the arm and probe would make tool changes impossible with work in the chuck
[12:00:50] <carper64_lb_> thought
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[12:02:34] <carper64_lb_> and pre settin the tools prior to starting the machining would not garrentee being spot on after locking the tool onto the block
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[12:08:04] <archivist> hmmm, some ideas
[12:08:24] <carper64_lb_> the amount of work thats gone into the accuracy of the latheits repeatability is unreadable on a 0.01 dial gauge would like to keep it at that with the tool changes
[12:09:18] <archivist> I did a cnc cam a while ago http://www.archivist.info/cnc/cnccam.html
[12:09:38] <archivist> that is an old pic never gets updated anymore
[12:10:32] <archivist> some tooling needs special camera lenses and I never went much further except in dreams
[12:11:00] <archivist> needs a telecentric lens I think
[12:11:20] <carper64_lb_> yes its a tricky one archivist
[12:13:52] <carper64_lb_> needs some deep thought i think
[12:14:03] <archivist> the thing with the cutter in my picture is the curves back from the tip are the reference and it needs to be rotating to include runout
[12:15:14] <archivist> and now I am not doing enough work to make me continue looking into the problem (too busy finding stuff to do)
[12:15:39] <carper64_lb_> this is for a lathe
[12:16:49] <archivist> his demountable camera looks nice but adds a whole lot of extra time
[12:18:16] <carper64_lb_> yes i agree id fix mine permenent with a removable lens cap
[12:18:33] <jthornton> my buddy has one that has a touch sensor on it and it just swings up and over the spindle when not in use
[12:18:39] <jthornton> very fast to use
[12:19:44] <archivist> his spec of .o1mm is a little hard to believe, the thermal on its legs must be more
[12:20:59] <carper64_lb_> yes thats what i thought
[12:22:42] <carper64_lb_> jt this is a nice one http://www.youtube.com/watch?v=s4xEo5GcXHk buut the problem is manual changes with work in the chuck would be a problem
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[12:23:33] <archivist> and the haas vid I wonder about the stops for the arm giving error in the arms radius
[12:24:28] <carper64_lb_> yep another thing i thought of
[12:25:13] <archivist> but once you are making stuff all tools be related so probably ok
[12:25:59] <jthornton> if he made the arms from tantalum it would have a low thermal expansion
[12:26:17] <archivist> invar!
[12:26:37] <jthornton> even better by 4x
[12:27:15] <archivist> OCD clockmakers use invar
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[12:30:03] <archivist> other OCD clockmakers use mercury compensation (in a bottle type bob)
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[13:29:20] <L84Supper> working on an microscope system here as well for a 5-axis stage similar how a mill would be setup, only our tools are printheads and lasers, it will also work for cutting tools
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[13:38:47] <DJ9DJ> re
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[14:11:37] <DJ9DJ> re
[14:16:40] <ssi> re re re re re re re re
[14:16:41] <ssi> spect
[14:16:44] <ssi> (just a little bit)
[14:17:27] <Loetmichel> ahem... Did i mentoin the firs broken parts on my Chinese 6040 Router?
[14:17:34] <ssi> onoes
[14:18:09] <Loetmichel> after just about two weeks of 8hrs a workday -> http://www.cyrom.org/palbum/main.php?g2_itemId=14193
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[14:18:38] <Loetmichel> ... thats how chinese think a coupler stepper-> threaded rod should be...
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[14:18:50] <Loetmichel> fixed it... -> http://www.cyrom.org/palbum/main.php?g2_itemId=14196
[14:19:19] <Loetmichel> second one broke just a day later... still waiting for thy y coupler to break ;-)
[14:20:14] <Loetmichel> (the two screws are just through the first plane, the DONT make the whole copler rigid!)
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[14:20:57] <ssi> woops
[14:21:01] <andypugh> Loetmichel: Replacing with upgraded couplers might be wise.
[14:21:08] <ssi> I don't like those cheap springy couplers
[14:22:00] <Loetmichel> andypugh: will do
[14:22:53] <Loetmichel> just have to find some time, then i will make some of these: http://www.cyrom.org/palbum/main.php?g2_itemId=12846
[14:23:00] <andypugh> L84Supper: A friend has just decided that he wants to buy/build a laser engraver for his leather workshop. The main work is motorcycle leathers repairing and customising, so he wants to be able to cut/engrave leather, possibly as part of big, bulky suits. Any ideas where to start?
[14:23:19] <Loetmichel> http://www.cyrom.org/palbum/main.php?g2_itemId=12821&g2_imageViewsIndex=1
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[14:30:30] <Tom_itx> do those split couplers work pretty well?
[14:33:38] <L84Supper> andypugh: sounds like he needs something like a large router table with a laser
[14:34:13] <Tom_itx> and a way to keep the leather flat
[14:34:53] <Tom_itx> can you focus thru a piece of glass laid over the leather?
[14:35:18] <Tom_itx> or will the glass distort the beam
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[14:35:49] <archivist> andypugh, hehe there is/was a leather laser on fleabay
[14:36:08] <L84Supper> http://www.youtube.com/watch?v=f4w3imuDrk4
[14:36:11] <Tecan> (f4w3imuDrk4) "Genuine Leather Laser Cutting Equipment" by "Goldenlaservideo" is "Tech" - Length: 0:02:45
[14:36:47] <archivist> andypugh, item 321108528056
[14:37:09] <archivist> may be a little large and over priced!
[14:39:04] <archivist> and now I have read it not even complete!
[14:40:35] <L84Supper> we were talking about this here last week, there was a youtube with software that would best fit the cuts on the fly out of the skins for the least amount of waste
[14:41:09] <Jymmm> It's called "nesting"
[14:42:04] <Jymmm> and lasering leather STINKS REALLY REALLY BAD, so make sure you have a good air scrubber =)
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[14:58:33] <L84Supper> http://tinyurl.com/d4bc33h something like this with a feeder handles 4' x 8' sheets
[15:02:32] <L84Supper> http://www.automationtechnologiesinc.com/products-page/cnc-router/cnc-plasma-kl-1325-60a-cutting-machine-98-x-51
[15:03:05] <L84Supper> for that price you could have plasma and add a laser
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[15:04:39] <L84Supper> http://www.automationtechnologiesinc.com/products-page/cnc-router/kl-1325-cnc-machine and under $10K
[15:06:39] <L84Supper> andypugh: I have no idea who might carry anything in the UK
[15:08:24] <andypugh> I should point out that he does one-offs and repairs. I think that maybe an extruded-frame gantry with belt-drive is about right.
[15:09:23] <andypugh> He mentioned an "A3 working area"
[15:17:38] <Loetmichel> Jymmm: no fan of the smell burning skin? ;-)
[15:18:12] <Jymmm> Loetmichel: Not so much that, but the screaming.
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[15:18:56] <Loetmichel> Jymmm: HRHAR
[15:19:08] <Loetmichel> ... VERY fresh "leather" ;-)
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[15:20:55] <Loetmichel> andypugh: i would use a kuka robot or similar and a plastic manneqin
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[15:21:33] <Loetmichel> isnt there a linuxCNC miode that can make a translation from 5/6 axis robot to cartesian coordinates?
[15:23:52] <pcw_home> if its only A3 most of the cheap Chinese laser cutters should do (if the work can be held flat enough)
[15:25:48] <Loetmichel> thats what i meant. he wants to laser logos on ready made leather suits for motorcyclists.
[15:25:59] <Loetmichel> i cant imagine these flattended out.
[15:26:11] <Loetmichel> especially the ones with armor inside
[15:27:04] <Loetmichel> i think one has to wear them on a mannequin and then read in the surface with a digitizer and project the wirting/cuts un thet surface
[15:27:11] <Loetmichel> hence the Kuka robot
[15:27:15] <andypugh> I doubt that the suit would fit inside any of the enclosed ones. They take up slightly more space than the rider, and fold only slightly more readily.
[15:27:16] <Loetmichel> or similar
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[15:27:44] <Loetmichel> s/thet/that
[15:29:09] <pcw_home> getting the mirrors articulated on the robot arm might be fun
[15:36:21] <GammaX> I just woke up and feel as though I got beat up in my sleep!
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[15:37:06] <Loetmichel> pcw_home: semiconductor laser mointed directly on the last axis
[15:37:14] <Loetmichel> mounted
[15:39:39] <generic_nick|2> GammaX: you didnt drink enough water if you're that hung over
[15:42:33] <pcw_home> Yes but nobody seems to use diode lasers this way (maybe wrong wavelength for general purpose engraver)
[15:42:49] <GammaX> generic_nick|2 didnt drink! lol
[15:42:59] <GammaX> and im not a fat old man either
[15:43:03] <generic_nick|2> oh, no excuse then lol
[15:43:59] <generic_nick|2> anyone know offhand if there are jog buttons on the keyboard for an A axis?
[15:44:04] <GammaX> generic_nick|2 what you up too today?
[15:44:23] <GammaX> are there job buttons for xyz?
[15:44:43] <generic_nick|2> taking the dogs to the beach then going to a cinco de mayo party
[15:44:46] <generic_nick|2> yes
[15:44:55] <GammaX> I had no idea
[15:44:55] <generic_nick|2> arrow buttons and page up/down
[15:45:01] <GammaX> damn
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[15:45:10] <IchGuckLive> hi all B)
[15:45:15] <generic_nick|2> hi
[15:45:16] <GammaX> hey IchGuckLive
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[15:45:59] <L84Supper> andypugh: laser mounted on a robot arm will work for that, you can even use a blueray laser diode
[15:46:07] <GammaX> http://www.ebay.com/itm/MACH-3-CNC-ROUTER-PLASMA-KEYBOARD-SHORTCUT-DECALS-STICKER-/150994840180?pt=LH_DefaultDomain_0&hash=item2327fe6a74
[15:46:16] <GammaX> are those buttons the same?
[15:46:40] <generic_nick|2> same?
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[15:46:53] <GammaX> the configs.... are they the same as liunuxcnc?
[15:47:11] <GammaX> or better question. can the button outputs be changed in linuxcnc?
[15:47:17] <IchGuckLive> GammaX: you can stick them to the key you want
[15:47:23] <generic_nick|2> i dont believe you can change them
[15:47:30] <generic_nick|2> really?
[15:47:33] <L84Supper> http://www.youtube.com/watch?v=gF4HG6v29UY Casio Laser projector burns some stuff
[15:47:36] <Tecan> (gF4HG6v29UY) "Casio Laser projector burns some stuff" by "pontiacg445" is "Tech" - Length: 0:07:33
[15:47:43] <IchGuckLive> if you dont update axis you can hack everything
[15:48:01] <generic_nick|2> oh i dont get that far into it
[15:48:15] <generic_nick|2> if i cant do it in the config files, i wont be doing it lol
[15:48:24] <IchGuckLive> its just a python file onto the interpreter
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[15:48:39] <generic_nick|2> hell, even if it can be done in the config files, i probably wont do it lol
[15:49:15] <GammaX> I am thinkin about building a enclosure formy pm45, make so coolant dont go flying everywhere. etc.
[15:49:17] <IchGuckLive> why not using a joypad for plasma i use Xbox joypad with 10m Activ USB it works perfekt
[15:49:24] <IchGuckLive> for 15USD
[15:49:42] <generic_nick|2> i have a pendant, sometimes using the keypad is easier for jogging
[15:49:58] <L84Supper> andypugh: there are cheap laser scanners to create a point cloud. IIRC Blender has unwrapping to put textures on 3d surfaces
[15:50:22] <GammaX> I would love to have something mounted to the front of my mill for zeroing....
[15:50:38] <IchGuckLive> cand belive that as my Computer is not at the mashine place ad not in view it is best to have a pendant or joypad on the router
[15:50:46] <IchGuckLive> http://wiki.linuxcnc.org/cgi-bin/wiki.pl?Simple_Remote_Pendant
[15:51:13] <generic_nick|2> to each his own, the keyboard works better for me.
[15:51:18] <IchGuckLive> GammaX: you got 12 Buttons and 6 Axis
[15:51:22] <generic_nick|2> pendants are a PITA
[15:51:47] <IchGuckLive> so feel free to join the buttons with your code
[15:52:02] <IchGuckLive> MDI G92 Z0 X0 Y0
[15:52:17] <IchGuckLive> or only G92 AXIS zero
[15:52:34] <IchGuckLive> Run Stop Pause Rerun
[15:52:35] <GammaX> I realy want a automatic tool setter
[15:52:52] <generic_nick|2> easier for me to reach up and push a button that never moves than hold a pendant
[15:53:28] <IchGuckLive> if the mashine is to big you will love to use a pendand
[15:53:41] <IchGuckLive> as my biggest is 7m to go in X
[15:54:00] <GammaX> 7m....
[15:54:02] <GammaX> ?!
[15:54:04] <IchGuckLive> if you zero the U Axis a long walk
[15:54:11] <IchGuckLive> back and forth on 1mm
[15:54:13] <toastyde1th> lol
[15:54:45] <IchGuckLive> tke the Xbox and play around O.O
[15:54:54] <toastyde1th> zero the X axis and all of a sudden the screw warms up and everything's over to the left a few thou
[15:54:59] <IchGuckLive> as long as the USB stands
[15:55:21] <IchGuckLive> on plasma the backplot of Voltige to the masghine frame is horibal to the USB
[15:55:46] <IchGuckLive> after torch firerd you will miss your pendand
[15:56:26] <pcw_home> USB is dreadful for industrial controls
[15:56:33] <GammaX> id love to have some type of keypad mounted to the front of mymill with velcro just to job and home...
[15:56:58] <generic_nick|2> GammaX: i have an industrial keyboard mounted on the front of my mill
[15:57:07] <generic_nick|2> coolant and chip proof
[15:57:17] <IchGuckLive> Gamma X on 5i25 lots of inputs to do that
[15:57:32] <IchGuckLive> even if secend parport
[15:57:32] <JT-Shop> MPG and two selector switches is all you need
[15:57:35] <GammaX> I got 2 parallel ports :)
[15:57:54] <IchGuckLive> so why not done jet
[15:58:00] <skunkworks> JT-Shop: that is pretty much the k&t control pannel atm
[15:58:02] <skunkworks> ;)
[15:58:08] <generic_nick|2> i dont like my mpg pentant JT-Shop. easier to push a button than spin a wheel
[15:58:23] <GammaX> yeah Id rather have buttons...
[15:58:26] <JT-Shop> not really, my MPG is mounted and easy to spin
[15:58:26] <generic_nick|2> it's fine for touching off, but not for jogging
[15:58:48] <skunkworks> OMG - you guys are crazy.. tool touch off's are so easy with a mpg
[15:58:59] <generic_nick|2> if i'm moving the x axis 37", i dont really feel like spinning for that long lol
[15:59:01] <JT-Shop> jogging with buttons is a PIA and the MPG rules
[15:59:07] <toastyde1th> agree w/ mpg
[15:59:19] <toastyde1th> I used a cnc bridgeport without an mpg and it sucked
[15:59:24] <JT-Shop> if you don't have a MPG mounted on your machine you can't comment
[15:59:41] <IchGuckLive> everyone as he likes it persenly thats what linuxcnc Stands For
[15:59:57] <Tom_itx> i wouldn't give up my pendant now that i have it
[16:00:10] <generic_nick|2> cant comment? i've been running machines with mpg's mounted for 16-17 years lol
[16:00:14] <skunkworks> http://www.electronicsam.com/images/KandT/conversion/panel/startfront.JPG
[16:00:27] <skunkworks> the only thing we have added is a Feed Hold..
[16:00:29] <JT-Shop> I have 3 machines with MPG's and one with a pendant
[16:00:32] <generic_nick|2> again, i use my pendat for tool touch off, but not for long jogs
[16:00:41] <skunkworks> we really need to finish that up
[16:00:47] <Tom_itx> generic_nick|2, if you're moving the axis 37" you should mdi a command
[16:00:47] <toastyde1th> is pendant being used in a specific way here
[16:00:57] <toastyde1th> because anytime I've used a machine with a pendant, it had the mpg on the pendant
[16:01:03] <toastyde1th> along with, you know, the rest of the control
[16:02:19] <Tom_itx> i just wish the spindle button worked better
[16:02:26] <generic_nick|2> takes me longer to switch to the mdi screen and type in a command than it doues to hold the arrow button for a few seconds
[16:02:27] <GammaX> i think pendant is being reffered to as anything such as a xbox controller
[16:02:38] <toastyde1th> ohhh
[16:02:57] <JT-Shop> http://gnipsel.com/shop/hardinge/hardinge-10.xhtml
[16:03:00] <generic_nick|2> i have a fanuc pentant. has a mpg, axis, and scale switches on it
[16:03:13] <toastyde1th> http://www.google.com/imgres?start=144&um=1&safe=off&hl=en&authuser=0&biw=1920&bih=965&tbm=isch&tbnid=1qYRIcc2tk-3_M:&imgrefurl=http://www.ebay.com/itm/Cincinnati-Millacon-CNC-Pendant-/130585339912&docid=Cpo2DBAEpkKL0M&itg=1&imgurl=http://i.ebayimg.com/t/Cincinnati-Millacon-CNC-Pendant-/00/s/NzUwWDEwMDA%253D/%2524(KGrHqUOKi0E5iZoP)JIBOj1WJpo8!~~60_35.JPG&w=300&h=225&ei=MDGFUbizMfKn4AOSw4C4Bw&zoom=1&ved=1t:3588,r:64,s:100,i:196&iact
[16:03:13] <toastyde1th> =rc&dur=369&page=4&tbnh=180&tbnw=240&ndsp=54&tx=160&ty=53
[16:03:15] <toastyde1th> oops
[16:03:18] <toastyde1th> that was full retard, hold
[16:03:23] <toastyde1th> http://i.ebayimg.com/t/Cincinnati-Millacon-CNC-Pendant-/00/s/NzUwWDEwMDA=/$(KGrHqUOKi0E5iZoP)JIBOj1WJpo8!~~60_35.JPG
[16:03:24] <toastyde1th> there
[16:03:28] <JT-Shop> I run out of hands trying to hold a pendant
[16:03:30] <toastyde1th> that's what i'm used to calling a "pendant," sorry
[16:03:43] <pcw_home> If you have recent firmware, the 7I76/7I77 support 2 MPG encoders (x1 count mode)
[16:04:03] <GammaX> Got a nube question! How can you hold a piece of cylindrical stock vertical in a drill press vise, and without using v clocks...
[16:04:06] <GammaX> blocks*
[16:04:30] <Tom_itx> softjaws
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[16:04:52] <toastyde1th> are you asking for a ad hoc solution or a commercial/perminent solution
[16:05:15] -!- fragalot [fragalot!~thomas@andimiller.net] has joined #linuxcnc
[16:05:19] <JT-Shop> I used to calling a "pendant" http://www.cnc4pc.com/Store/osc/product_info.php?cPath=40&products_id=158
[16:05:34] <GammaX> toastyde1th add hoc 1 time type deal
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[16:05:47] <JT-Shop> mill some flats on it?
[16:05:55] <toastyde2th> #$%@^#
[16:06:22] <GammaX> I got 2 couplers im going to need to enlarge the opening on one end.
[16:06:23] <toastyde2th> also if you're looking for SUPER ghetto, no-work-involved type stuff
[16:06:34] <GammaX> ^^^ yes
[16:06:35] <toastyde2th> use thick cardboard as the soft jaw, tagging on Tom_itx's suggestion
[16:06:46] <Tom_itx> gambakufu, you'd better center that in a lathe
[16:06:51] <Tom_itx> Gamma-x
[16:06:53] <Tom_itx> ^^
[16:07:02] <toastyde2th> also if you can, if you're trying to do this with a hollow part
[16:07:07] <toastyde2th> you're going to need to make a plug of some sort
[16:07:12] <toastyde2th> or you're going to crush the thing
[16:07:15] <Tom_itx> and use a single point cutter not a drill
[16:07:16] <generic_nick|2> JT-Shop: hangs pretty sturdy, i can easily spin it without holding it. http://farm9.staticflickr.com/8559/8707933356_0416be6dac_c.jpg
[16:07:17] <toastyde2th> and make an oblong retard hole
[16:07:19] <JT-Shop> Gamma-x: do you have a pin the same size as the bore and will it fit in your spindle?
[16:07:44] <pcw_home> cast it in hard wax...
[16:07:44] <Tom_itx> hold the drill / reamer spin the work
[16:07:49] <JT-Shop> yep, that is a good pendant solid but movable
[16:08:01] <GammaX> JT-Shop I gota drill bit about the same size
[16:08:17] <JT-Shop> I bet you can operate that pendant with your eyes closed
[16:08:24] <generic_nick|2> yep
[16:08:33] <generic_nick|2> still prefer buttons for jogging though lol
[16:08:34] * Tom_itx joins the pendant 'show n tell'
[16:08:35] <Tom_itx> http://tom-itx.dyndns.org:81/~webpage/cnc/pendant8.jpg
[16:08:41] <JT-Shop> use the drill bit to set the position of the part with the bit in the spindle
[16:09:09] <JT-Shop> coolant holes?
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[16:09:09] <generic_nick|2> nice Tom_itx
[16:09:16] -!- toastyde1th has quit [Ping timeout: 258 seconds]
[16:09:23] <generic_nick|2> i really need to clean my mill
[16:09:37] <generic_nick|2> poor thing gets trashed
[16:10:09] <JT-Shop> for general jogging I use the keyboard then switch to the MPG for final postion touch off exc
[16:10:37] <toastyde2th> best thing for cleaning mills i've found is a cheap sumbergable pump connected to a garden hose + sprayer gun
[16:10:50] <toastyde2th> throw the pump in the coolant tank, boom, instant clean mill
[16:11:07] <generic_nick|2> JT-Shop: thats exactly what i was saying lol
[16:11:35] <generic_nick|2> i dont do tool touchoffs with the keyboard that's for sure
[16:11:40] <JT-Shop> hard for me to keep up just before my nap
[16:11:45] <generic_nick|2> lol
[16:11:47] <Tom_itx> i could add a jog button to mine with a preset feed
[16:11:48] <JT-Shop> ouch me neither
[16:12:11] <JT-Shop> did someone say nap?
[16:12:15] <JT-Shop> dang good idea
[16:12:21] <Tom_itx> feed first
[16:12:25] <Tom_itx> then you'll have a good nap
[16:12:47] <JT-Shop> we had a late breakfast after taking the cats to the vet
[16:13:16] <pcw_home> Cat tune-up?
[16:13:17] <Tom_itx> late for you is still before sunup
[16:13:36] <generic_nick|2> im waiting for the marine layer to burn off so i can go to the beach
[16:13:37] <JT-Shop> yep
[16:14:18] <generic_nick|2> so back to my question, is there a keyboard button for jogging an a axis?
[16:14:35] <Tom_itx> i think so
[16:14:36] <archivist> generic_nick|2, yup
[16:14:56] <JT-Shop> Help > Quick Reference will show you all the key bindings for Axis
[16:15:05] <generic_nick|2> ah cool.
[16:15:09] <generic_nick|2> tried google
[16:15:15] <Tom_itx> where's the axis code hidden?
[16:15:35] <IchGuckLive> no
[16:15:51] <generic_nick|2> found it, thanks
[16:16:02] <generic_nick|2> it is [ and ]
[16:16:12] <JT-Shop> or -= for the active axis
[16:16:50] <generic_nick|2> nice
[16:16:52] <archivist> generic_nick|2, I also used http://article.gmane.org/gmane.linux.distributions.emc.user/12642 when I added jogs for B but that is very old info now
[16:17:04] <generic_nick|2> gracias
[16:17:32] <generic_nick|2> just got some fine tuning to do on the servo and the 4th axis is ready
[16:17:36] <JT-Shop> yawn
[16:17:58] <generic_nick|2> should be interesting lifting that sucker onto the mill
[16:18:02] <archivist> !wench learn yawn is wake up <nick>
[16:18:03] <the_wench> I have learned yawn is wake up <nick>
[16:18:57] <generic_nick|2> ok im off, ttyl
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[16:23:03] <IchGuckLive> the key bindings for axis are in line 2962 AXIs in the usr/bin directory
[16:24:19] <IchGuckLive> right above the grid matchings in DEF units
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[16:25:13] <IchGuckLive> bind_axis("bracketleft", "bracketright", 3)
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[16:26:45] <IchGuckLive> bind_axis("Left", "Right", 0)
[16:26:46] <IchGuckLive> bind_axis("Down", "Up", 1)
[16:26:48] <IchGuckLive> bind_axis("Next", "Prior", 2)
[16:26:49] <IchGuckLive> bind_axis("KP_Left", "KP_Right", 0)
[16:26:51] <IchGuckLive> bind_axis("KP_Down", "KP_Up", 1)
[16:26:53] <IchGuckLive> bind_axis("KP_Next", "KP_Prior", 2)
[16:26:55] <IchGuckLive> bind_axis("KP_4", "KP_6", 0)
[16:26:57] <IchGuckLive> bind_axis("KP_2", "KP_8", 1)
[16:26:58] <IchGuckLive> bind_axis("KP_3", "KP_9", 2)
[16:27:00] <IchGuckLive> bind_axis("bracketleft", "bracketright", 3)
[16:28:21] gimpswork is now known as gimpspace
[16:29:26] <IchGuckLive> bracketleft on a german keyboard not available
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[16:31:22] <GammaX> might be going to buy samsung galaxy s4 today!
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[16:53:20] <IchGuckLive> im off have a nice miling day country day here today with bands and sqaredancers ! O.O
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[17:09:38] <generic_nick|2> im thinking of going to a indepentant floor standing monitor and control pannel for my mill.
[17:14:41] <GammaX> im building a quick tool changer and need to find a tormac style air cylinder... any thoughts on this?
[17:15:00] <andypugh> I just made one.
[17:15:15] <GammaX> andypugh oh great, have any info?
[17:15:20] <GammaX> write up? etc...
[17:15:43] <L84Supper> andypugh: http://www.youtube.com/watch?v=O2oaBtkpNpE replace welder with laser
[17:15:48] <Tecan> (O2oaBtkpNpE) "Welding robot with LinuxCNC" by "viestartss" is "Tech" - Length: 0:03:08
[17:16:01] <andypugh> GammaX: https://picasaweb.google.com/lh/photo/Tad4D5FLiM1goCdswmXtdQ?feat=directlink
[17:16:35] <andypugh> GammaX: And http://youtu.be/pxrzJ_KfcQ0
[17:16:45] <GammaX> andypugh hmmm wtf is that?! lol
[17:17:40] <generic_nick|2> nice andypugh
[17:17:52] <GammaX> thats nice
[17:17:56] <generic_nick|2> id like something like that for my mill instead of the power drawbar
[17:18:46] <GammaX> I need something that will press down on the bellvilles
[17:19:02] <andypugh> The pneumatic cylinder is a bit special as it "pinches" the drawbar rather than pushing down on the spindle bearings.
[17:19:31] <GammaX> andypugh great design... how long it take you to make?
[17:19:37] <GammaX> Have any solids for it?
[17:20:18] <generic_nick|2> interested in that as well. would be great for my mill. then i could switch to cat40 holders instead of nmbt
[17:20:33] <GammaX> i currently use er32 collets
[17:20:48] <andypugh> Note that the spring in the picture didn't work, and I used one of these instead (the company were nive enough to send me a free sample, even when I exp-lained that I only needed one :-) http://www.leespring.co.uk/uk_int_learn_wave.asp?
[17:22:44] <generic_nick|2> very cool
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[17:23:47] <GammaX> andypugh any schematics or drawings for it?
[17:24:25] <GammaX> once I have this done I will start making my automatic tool changer.
[17:24:35] <andypugh> I am seeing what I have
[17:24:49] <GammaX> thanks!
[17:26:25] <generic_nick|2> i guess i dont really need the model, everything will be different for my mill.
[17:26:40] <generic_nick|2> wait what taper is that andypugh?
[17:27:09] <andypugh> BT30 (actually, the machine was 30 INT, but I am using BT30)
[17:27:19] <generic_nick|2> cool
[17:27:31] <GammaX> i have r8 and would like to have the pinch drawbar type...
[17:27:45] <generic_nick|2> wonder how much different it would be for cat40
[17:28:38] <andypugh> Look at post 136 here for a spreadsheet that graphs the force/displacement curves for DIN standard disc springs. http://www.cnczone.com/forums/vertical_mill_lathe_project_log/41200-bt30_spindle_project-12.html
[17:30:39] <generic_nick|2> http://farm9.staticflickr.com/8277/8705861406_85e7c12848_c.jpg
[17:31:04] <GammaX> sweet jesus thats some articulation
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[17:31:14] <generic_nick|2> 56"
[17:31:25] <GammaX> generic_nick|2 I gota 4runnerbut would never be able to do that
[17:31:34] <GammaX> although I dont have a pumpkin :D
[17:31:58] <generic_nick|2> it can with some work lol
[17:32:08] <GammaX> daily driver
[17:32:10] <generic_nick|2> it's a station wagon just like mine
[17:32:13] <generic_nick|2> so is mine
[17:32:18] <GammaX> winch bumber 3 inch lift, rock sliders, trail edition
[17:32:26] <generic_nick|2> nice
[17:32:36] <GammaX> your ride looks good aswell man!
[17:32:40] <GammaX> where u live at?
[17:32:42] <generic_nick|2> thanks man
[17:32:51] <generic_nick|2> southern california
[17:32:56] <generic_nick|2> u?
[17:32:59] <GammaX> Denver
[17:33:18] <generic_nick|2> cool. supposed to be some good wheeling out in texas
[17:33:20] <GammaX> if you ever come up to the rockies, deff let me know we can go wheelin together
[17:33:46] <generic_nick|2> will do, however that's a bit of a drive for that pig lol
[17:34:06] <generic_nick|2> it's got full width 1 ton axles
[17:34:17] <generic_nick|2> 5.38 gears and lockers
[17:34:54] <generic_nick|2> coilovers all around with no sway bars. not the best street rig :)
[17:35:18] <andypugh> I reckon my GasGas can get to more places :-)
[17:35:29] <GammaX> i got stock everything but limited slip in front, rear electric locker ( will upgrade when she dies) Coil overs in front, indipendant suspension in back (bigger springs and shocks)
[17:35:48] <GammaX> I used to drive that to work but now Im forced to take the prius!
[17:35:53] <generic_nick|2> http://farm9.staticflickr.com/8519/8535336108_c672ea1850_c.jpg
[17:36:11] <GammaX> ha
[17:36:17] <GammaX> wopnt find me doin that!
[17:36:22] <generic_nick|2> andypugh: gasgas?
[17:36:26] <andypugh> GammaX: What format do you need? It is all in Alibre format at the moment, but I ought to be able to export.
[17:36:30] <GammaX> mynes a 2010
[17:36:40] <generic_nick|2> nice
[17:36:45] <GammaX> Well I have solidworks so...
[17:36:50] <generic_nick|2> too new to beat up
[17:37:04] <GammaX> if you can get it into a solidworks model that'd be great but I think sw can open a lot of things
[17:37:12] <andypugh> generic_nick|2: http://en.wikipedia.org/wiki/File:2003_Gas_Gas_EC_200.JPG
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[17:37:42] <generic_nick|2> andypugh: generally we can get more places than dirtbikes
[17:38:31] <generic_nick|2> obviously if the trail is 2 feet wide, then maybe not, but we can definitely clear bigger rocks
[17:38:39] <generic_nick|2> (i ride too)
[17:38:52] <andypugh> I typically go round the rocks :-)
[17:39:13] <generic_nick|2> i usually look for them
[17:40:01] <generic_nick|2> http://farm9.staticflickr.com/8530/8509595721_71d9f26982_b.jpg
[17:42:29] <andypugh> Does this file work for you? http://www.bodgesoc.org/Drawbar.sldasm
[17:43:07] <andypugh> Is that stuck, or just about to get stuck?
[17:43:46] <andypugh> One thing I have noticed when out and about at the same time and place as the 4x4 crowd is just how very slowly they move.
[17:43:50] <generic_nick|2> not stuck
[17:44:18] <andypugh> Caterpillar tracks on the door handles?
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[17:44:25] <generic_nick|2> it's not on it's side
[17:45:12] <generic_nick|2> generally you dont rock crawl fast as it's rough on equipment
[17:45:20] <andypugh> GammaX: Did you get the file?
[17:45:44] <GammaX> no sir
[17:45:47] <andypugh> I can see that. Momentum is your friend on a bike though, right up to the point that it is your enemy :-)
[17:46:56] <andypugh> GammaX: Link up there
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[17:47:35] <JT-Shop> andypugh: you have to send all the part files with an assembly
[17:47:48] <andypugh> Ah.
[17:47:53] <GammaX> got t
[17:47:54] <GammaX> thanks!
[17:48:08] <andypugh> It probably won't work.
[17:48:17] <andypugh> (As JT just pointed out)
[17:49:11] <GammaX> yeah it didnt.
[17:49:17] <GammaX> crashed my sw
[17:49:32] <GammaX> hope it aiuto saved my other parts.
[17:50:21] <GammaX> I wonder how I could set that up for an r8 rf45 spindle...
[17:50:46] <andypugh> Using the Tormach TTS?
[17:51:13] <GammaX> thats the idea
[17:51:20] <GammaX> but instead of er20 I have er32 collets
[17:52:02] <GammaX> bigger tooling capabilities but there is no lip for my to grab... prolly through the collets in the lathe and make a 1/4 inch grove in them for tool changer later on
[17:52:16] <GammaX> or think of another way to hold the things.
[17:52:28] <andypugh> Pretty much the same way, but with the TTS collet screwed on the end in place of the finger gripper, I think.
[17:53:05] <JT-Shop> yuck, I think I've found a bug with G10 L20
[17:53:20] <GammaX> andypugh I can prolly cut down a draw bar to have it like 5 inches and have a tube go deep down in there to hold it..
[17:53:41] <GammaX> well... then I cant have any bellevilles...
[17:54:51] <andypugh> You could. The thing is that my disc springs push the rod up, and push agains the bottom of the tube that they are in.
[17:55:06] <andypugh> The same thing ought to work for you.
[17:55:12] <L84Supper> http://www.ebay.com/itm/FANUC-ROBOT-LR-MATE-100-ROBOTIC-ARM-AUTOMATION-5-AXES-F-24239-/111036963639?pt=LH_DefaultDomain_0&hash=item19da519b37 Mesa for controllers and add a 1W laser diode for engraving
[17:55:27] <andypugh> Though I think TTS needs a lot less trabel than I needed, so there may be no need.
[17:56:18] <GammaX> andypugh once I take a look at your files I might be able to modify to make ti work great. Did you buy that cylinder or make it?
[17:56:59] <andypugh> I made every part except the springs and the valve-collets that hold the rod in the collar.
[17:58:16] <GammaX> man... I realy dont wanna make a cylinder
[17:58:22] <andypugh> GammaX: Can you open .stp files?
[17:58:40] <GammaX> if I can pull this off Id love to make kits to sell for the rf45... making all those cylinders would suck! ol
[17:59:03] <andypugh> Making the cylinder was easy, and allowed me to get exactly what I needed. It just uses an O-ring to seal.
[17:59:33] <GammaX> andypugh yeah i can
[18:01:20] <GammaX> idk if that would work... i keep thinkin in my head about the configuraton of the rf45 style mill...
[18:02:15] <andypugh> http://www.bodgesoc.org/Drawbar.stp
[18:03:44] <GammaX> trying to figure out how to save that lol
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[18:08:06] <JT-Shop> ctrl a ctrl c ctrl v
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[18:08:58] <andypugh> File -> Save As
[18:09:30] <andypugh> GammaX: What is your spindle bore size?
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[18:11:45] <JT-Shop> a couple of import errors but SW fixed them
[18:12:07] <JT-Shop> that's quite a stack of belville springs :)
[18:12:53] <JT-Shop> O-ring around the top of the jaws?
[18:14:19] <andypugh> Yes, just to make them want to open.
[18:14:29] <JT-Shop> very nice design
[18:14:47] <andypugh> I admit to being quite proud of it.
[18:16:09] <JT-Shop> what kind of spindle does it fit?
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[18:30:15] <GammaX> omg that is a lot of bellevilles!
[18:30:23] <GammaX> JT-Shop you were right!
[18:31:23] <GammaX> Now does that not push on the spindle?
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[18:36:27] <JT-Shop> anyone with Axis Lathe sim want to check this out for me? http://gnipsel.com/files/G10L20.ngc
[18:36:47] <JT-Shop> I think it is a bug in G10L20 or elsewhere
[18:38:04] <JT-Shop> make sure you save as
[18:40:35] <andypugh> GammaX: Because the bottom "plug" in the cylinder comes up underneath the collar.
[18:40:57] <JT-Shop> this is a better link http://gnipsel.com/files/G10L20.ngc.zip
[18:45:39] <JT-Shop> I don't know if it is a bug with G10 or o100 if
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[18:47:44] <pcw_home> What do you need to do to check?
[18:47:59] <JT-Shop> Axis lathe sim
[18:48:32] <pcw_home> OK have that (old though)
[18:49:05] <JT-Shop> if I set #<zero> = 1 and abort then set to 0 the Z moves will go too far, the next time you run they go to the correct position
[18:50:00] <pcw_home> so i do that in MDI before I start?
[18:50:19] <JT-Shop> no, just change the ngc file and reload
[18:50:36] <JT-Shop> instructions in the file
[18:52:51] <pcw_home> esc after tool change request?
[18:53:29] <JT-Shop> yea or as soon as it starts to move
[18:54:28] <pcw_home> OK so now re-edit/load with #<zero> = 0?
[18:54:37] <JT-Shop> yep
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[18:56:11] <pcw_home> OK reloaded, how do I start it
[18:56:28] <JT-Shop> just press run
[18:57:39] <pcw_home> ok finished
[18:58:30] <JT-Shop> run it again and it should go to the proper start Z this time and last time it should have went to Z-0.030 and Z-0.040 for the second pass
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[18:58:55] <JT-Shop> it should be going to Z-0.010 then Z-0.020
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[19:08:57] <pcw_home> Yes if #<-zero> was 1 when you start , then interrupt , change #<zero> to 0 and restart,
[19:08:59] <pcw_home> the cut depth is -0.030,-0.040 instead of -0.010, -0.020
[19:14:20] <jthornton> yep, shore messes up your day when that happens
[19:19:55] <JT-Shop> if you comment out the G10 L20 line it does not happen
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[19:22:16] <pcw_home> I do not know enough about gcode or what happens when you change that in
[19:22:18] <pcw_home> the middle of code execution to know if thats a bug or not
[19:22:22] <archivist> wtf....Can I replace the fuse with a piece of wire and hope for overcurrent and overheating protection to protect the drive?
[19:24:08] <JT-Shop> sure if you use the correct size of wire with a reduced section in the middle
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[19:31:10] <Loetmichel> JT-Shop: old electronican truth: a strand from a 1,5mm^2 stranded wire is good for a 4A "super lag" fuse ;-)
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[19:34:08] <pcw_home> Seems to me I've used wire wrap wire (30 ga) for about 20A fuse
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[19:41:09] <Loetmichel> pcw_home. THAT CANT BE TRUE
[19:41:17] <Loetmichel> oh, sorry, capslock
[19:41:44] <Loetmichel> iigoogle coorctly, 30ga is about 0.05mm^2
[19:42:01] <pcw_home> Depends on length (Preece says 10A)
[19:43:06] <pcw_home> http://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=2&ved=0CDcQFjAB&url=http%3A%2F%2Fwww.litz-wire.com%2FNew%2520PDFs%2FFusing_Currents_Melting_Temperature_Copper_Aluminum_Magnet_Wire_R2.011609.pdf&ei=qGSFUbWBLorF0QGHw4HoCA&usg=AFQjCNEcmiBUGVWhyoyHdnCEpendezFF3w&sig2=4BST-7x1bGsVfacC9gGftw&bvm=bv.45960087,d.dmQ
[19:43:37] <Loetmichel> and a strand of 1.5mm^2 fine stra nded ist0.05mm^2but that strand is verified to be 4A super lag in MANY experiments
[19:44:38] <pcw_home> 1 strand of normal zip cord is much smaller than 30 ga
[19:44:48] <pcw_home> maybe 36 ga
[19:45:41] <Loetmichel> ok, if you say so ;-)
[19:45:49] <Loetmichel> then it fits again
[19:46:22] <JT-Shop> pcw_home: thanks for confirming that
[19:46:45] <Loetmichel> i just got 30 strands of google for a 1,5mm^2 copper wire (H07-RN-F)
[19:47:03] <Loetmichel> which translates roughly to 0.05mm^2 for the single strand
[19:48:59] <pcw_home> that was with 2.5 pre
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[19:50:39] <JT-Shop> so it is not a new feature
[19:53:29] * Loetmichel gets out of the bathtub before he looks like a sharpai ;-)
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[20:03:21] <andypugh> Bother!
[20:04:06] <andypugh> I just finished fitting a new chain to my bike. This is quite a task, as it has a press-fit rivet link. Turns out the chain supplied was too long.
[20:04:08] <JT-Shop> oh bother the coupler I bought is for 1 7/8" ball not 2"
[20:04:29] * JT-Shop hands Andy a pint
[20:04:55] <andypugh> Thanks. Guess I am cycling until next weekend.
[20:05:44] <JT-Shop> do you have to have a special press to assemble the link?
[20:06:08] <andypugh> I do. Though a friend broke it, so I actually used a small milling vice today.
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[20:14:15] <pcw_home> The were just being thoughtful and adding a few spare links
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[21:12:51] <DJ9DJ> gn8
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[22:02:04] <JT-Shop> http://www.youtube.com/watch?v=2OOTr04YTwE
[22:02:06] <Tecan> (2OOTr04YTwE) "The Royal Teens - Short Shorts" by "carminedamicoguitar" is "Music" - Length: 0:02:38
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