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[00:43:28] <plasmator> question - what's the best way to set things up to replicate multiples out of the same stock on a mill? Do I do it in CAM? In the controller? ???
[00:44:20] <WillenCMD> To repeat the same program?
[00:45:26] <plasmator> basically, at different places
[00:45:38] <plasmator> I have a program that's output from MasterCAM, for one part
[00:46:31] <plasmator> but I want 4 of that part :)
[00:46:52] <WillenCMD> i would think a macro would be the easiest solution
[00:47:16] <WillenCMD> use different work zones for the locations
[00:48:59] <WillenCMD> solid cam will set that up for you, i don't know about mastercam
[00:49:51] <plasmator> hm, I guess I'll have to do some more googling
[00:50:09] <plasmator> kind of an awkward thing to google, keep getting oddball results :)
[00:56:23] <plasmator> looks like "Transform Tool Paths" is the trick in MasterCAM
[00:59:06] <ktchk> linuxcnc can shift x or y position and touchup to new g54 and do another mill.
[01:04:47] <plasmator> I think that is the thing to do if you have multiple vises/fixtures
[01:05:20] <plasmator> For multiples, in say a 2d sort of operation, I think the Transform Tool Path is the way to go
[01:05:49] <plasmator> took me just a few clicks :)
[01:08:28] <plasmator> thanks all
[02:10:55] <DJ9DJ> moin
[06:22:39] <WillenCMD> Anybody on here?
[06:25:29] <archivist> no, they went to the pub
[06:40:23] <dhoovie|2> good time for the pub :D
[07:19:27] <gmagno> hey
[09:25:43] <Jymmm> *** FREE SLURPEE DAY ***
[11:44:50] <cncjerry> hey, yesterday cradek asked me to run latency test to see what might be causing my keyboard sticking problem
[11:45:28] <cncjerry> the problem is the jog keys don't act consistent. now that I think about it, I think I changed something related to latency when I resinstalled
[11:45:45] <cncjerry> so when i run the test, what do I look for and change in the ini?
[11:46:56] <jdh> base period
[11:47:07] <jdh> what is the peak latency from the test?
[11:47:50] <cncjerry> it just says max jitter
[11:48:00] <jdh> .what is it?
[11:48:47] <cncjerry> 49065
[11:48:56] <cncjerry> the loweris 60000
[11:49:12] <cncjerry> on the longer thread that is
[11:51:36] <jdh> max jitter on base thread
[11:51:56] <cncjerry> 49065 on base
[11:52:19] <Jymmm> on-board video?
[11:52:53] <cncjerry> no, pcie card
[11:53:10] <Jymmm> got another mobo by chance?
[11:53:13] <cncjerry> this thing ran like a champ for years on the old version
[11:53:27] <cncjerry> no, don't feel like changing that
[11:53:37] <Jymmm> you may have to
[11:53:41] <cncjerry> is 49065 really bad?
[11:53:47] <jdh> no
[11:54:07] <jdh> but a $79 atom cpu/board will get much less
[11:54:16] <jdh> http://wiki.linuxcnc.org/cgi-bin/wiki.pl?Latency-Test
[11:54:27] <cncjerry> like I said, this ran perfectly for years, I upgraded because I saw a problem with CV on certain cuts
[11:54:32] <Jymmm> jdh: 20000 is usually the limit
[11:54:50] <cncjerry> It only goes that high when I was moving a lot around
[11:55:09] <Jymmm> it should never go that high =)
[11:55:14] <jdh> worst case is what will happen, at the worst possible time.
[11:55:18] <cncjerry> it is 4863 if I let it sit
[11:55:43] <jdh> read the above url
[11:56:08] <jdh> do you have new video drivers or other new stuff also?
[11:57:02] <cncjerry> no, the only thing I added was a new USB keyboard. other than that, it is the same system. oh, and I gave it its own partition instead of the windows drive
[11:57:25] <Jymmm> cncjerry: was a PS2 keyboard before?
[11:57:38] <cncjerry> are there settings in the system for pulse rate or something? I have this tuned down, it will do 300ipm but I only run it at 60ipm
[11:57:48] <cncjerry> yep
[11:57:51] <cncjerry> was ps2
[11:57:58] <cncjerry> duh
[11:58:01] <Jymmm> cncjerry: try using it again and see what happens
[11:58:03] <cncjerry> didn't think of that
[11:58:12] <cncjerry> wish I could.
[11:58:18] <cncjerry> had a little accident
[11:58:25] <Jymmm> It's not a fix, but a crutch
[11:59:01] <cncjerry> this is a 3mhz p7? can't remember, but it was a high end chip when I built it 8yrs ago.
[11:59:29] <Jymmm> no such thing as a P7 =)
[11:59:45] <cncjerry> ran perfectly except I saw a facet problem on outside corners under consant velocity so I thought I would try the new version
[12:00:16] <cncjerry> ok, socket 7? come on, cut me a break, it has been years. and by the way, I worked for IBM on the PC prior to it coming out in 1980\
[12:00:34] <jdh> wow, and still going?
[12:00:37] <jdh> err... nevermind :)
[12:00:37] <cncjerry> when bill gates was a business partner for IBM
[12:00:57] <cncjerry> wise guy, us gray hairs still have all the money
[12:01:02] <Jymmm> jdh: My 486DX25 runs perfectly
[12:01:04] <cncjerry> :-)
[12:01:22] <cncjerry> I still have a 486 around here. saw it not that long ago
[12:01:41] <Jymmm> cncjerry: It's time to get into the 21st Century...
http://www.newegg.com/Product/Product.aspx?Item=N82E16813121442
[12:01:55] <cncjerry> I was on the application architecture team that made the decision not to continue with the DOS operating system.
[12:02:00] <cncjerry> I was only a grunt
[12:02:35] <Jymmm> cncjerry: We have these things called punch cards now
[12:02:35] <cncjerry> changing the mother board for linux is easy but windows is a pain. also, I think it is an original ATX large format case?
[12:02:44] <cncjerry> so I would have to change the case most likely
[12:03:12] <jdh> new case is $50
[12:03:15] <cncjerry> anyway, is there anything I can tune to get this working or maybe I will just find an old PS2 keyboard
[12:03:23] <jdh> $15 for some mem.
[12:03:32] <jdh> but, I bet you still have your faceted inside corners
[12:03:40] <cncjerry> it has 3gb of memory but it is old sdram
[12:03:54] <cncjerry> haven't run the test yet
[12:04:10] <cncjerry> I was using version 2.26 I think
[12:04:21] <cncjerry> I thought there was a cv change after
[12:05:05] <cncjerry> setting all that aside, I think the facets were related to the preload on the new spindle bearings not being reset after break-in
[12:05:21] <cncjerry> so there are no tuning parameters?
[12:08:45] <jdh> dunno. G61 change perhaps?
[12:09:06] <cncjerry> realted to pulse rate as in MAch3
[12:25:32] <taiden> foam tape
[12:25:37] <taiden> how i love and hate thee
[12:25:56] <taiden> perfect for my uses but impossible to remove once installed
[12:26:08] <jdh> must be some good foam tape.
[12:27:25] <taiden> the adhesive is hardcore
[12:45:34] <tjb1> Patiently waiting for conway :(
[12:56:35] <andypugh> Got that little tiny PC today. It is rather cute.
[12:56:58] <jdh> which one?
[12:57:52] <andypugh> http://youtu.be/y62wvJkrIag
[12:58:46] <andypugh> google for "ncbox"
[13:05:00] <tjb1> How much was it?
[13:06:04] <jdh> posts say retail around $250
[13:06:05] <skunkworks> andypugh, that guy was on the linuxcnc forum?
[13:06:30] <andypugh> Yeah. H einsisted on sending me a free sample...
[13:06:43] <skunkworks> andypugh, awesome!
[13:06:54] <tjb1> $250? :/
[13:07:05] <skunkworks> what is it? (processor wise) I assume no pci or pcie?
[13:07:58] <archivist> andypugh, remember the hobbing machine picture last night, the bit of wire sticking out the collet is an internal drive dog to rotate a watch pinion with mounted wheel, spinle have to come apart to use normally
[13:08:10] <andypugh> CPU is MSTI PMX-1000
[13:10:08] <FinboySlick> andypugh: You do C?
[13:10:18] <andypugh> A bit
[13:10:28] <FinboySlick> andypugh: How are you with poll()?
[13:10:43] <andypugh> I have never used it. Sorry.
[13:10:53] <FinboySlick> OK.
[13:11:14] <FinboySlick> Having the damnest time with alsa. It's a pretty nasty API.
[13:11:29] <FinboySlick> Plus I'm a pretty lousy programmer ;)
[13:12:21] <archivist> you might fine someone helpful in ##c
[13:12:25] <archivist> find
[13:12:32] <archivist> they fine you
[13:13:30] <FinboySlick> archivist: Yeah... The responsive ones are fairly intolerant of my noobness. They don't do API either so they'll just shove me to #alsa.
[13:13:59] <archivist> they are somewhat elitist
[13:14:24] <archivist> I used to lurk in there for a while
[13:16:14] <djdelorie> real programmers use select() :-)
[13:23:56] <Tom_itx> gosub
[13:23:59] <Tom_itx> :)
[13:24:36] <jdh> jmp
[13:24:43] <archivist> GOTO rinse_repeat
[13:26:42] <skunkworks> I remember being told in high school that if you used goto's - you were a bad programmer.. Then in collage it was - 'whatever it takes to get the job done'
[13:27:20] <archivist> try writing assembler without jmp (goto)
[13:28:17] <tjb1> Got my new extrusions…another one is bent…should I tell tslots about this?
[13:28:41] <jdh> of course
[13:29:02] <jdh> skunkworks: you had computers in high school?
[13:29:05] <tjb1> This is one of the replacements they sent to replace the gashed and bent one
[13:29:43] <andypugh> If they replaced the first one for being bent, then they accept that they should be straight.
[13:30:21] <tjb1> Well off I go to take pictures and guess I will measure how far it is from the end to make sure the other isnt bent
[13:30:39] <tjb1> I mean, if its something the shipping company is doing…shouldnt both be bent in relatively the same area?
[13:30:40] <skunkworks> jdh, apple II iirc
[13:30:58] <andypugh> That tiny PC doesn't have a PCI slot, but has exactly the right header for attaching a Mesa 7i43. Which could make quite a cute servo system.
[13:31:06] <tjb1> They were banded together with 1inch metal bands
[13:33:12] <syyl> we always get bent or gashed extrusions...
[13:33:15] <skunkworks> andypugh, this?
http://www.compactpc.com.tw/ebox-3300MX.htm
[13:33:24] <syyl> the pick the 6m long bars up with a forklift
[13:33:29] <syyl> and show no mercy
[13:34:36] <andypugh> skunkworks: Very similar. Except it has a parallel port
[13:34:44] <skunkworks> neat
[13:34:48] <andypugh> And it is a lot yellower
[13:35:04] <A2Sheds> andypugh, thanks for the low pressure steam turbine links, ends up they only want to cool the steam down to 80 deg C and release it into the sewer
[13:35:15] <A2Sheds> sorry 80 deg F
[13:35:40] <andypugh> That's still a fair bit of energy to recover
[13:36:13] <andypugh> Are you saying that they don't want that energy back?
[13:36:28] <A2Sheds> cooling tower with 2000A 480VAC is on the top of their list
[13:37:04] <andypugh> Can't you show them the maths?
[13:37:06] <A2Sheds> they don't want to exchange the heat to preheat the water supply into the autoclaves
[13:37:35] <andypugh> Not preheating might make sense, but they could generate significant amounts of electricity.
[13:37:44] <A2Sheds> they mostly just want to cool the steam and dump it into the sewer
[13:38:12] <andypugh> Yes, but, the turbine will cool the steam, and possibly power a cooling statge.
[13:38:36] <A2Sheds> yeah, not too interested, but they will think about it
[13:38:58] <A2Sheds> not sure if it's the NIH syndrome or ??
[13:39:39] <andypugh> And they wonder why the US burns more fuel per capita than anywhere else.
[13:40:19] <A2Sheds> 50M BTU/hr x 4 = 50MW and with losses in the turbine and generator you still end up with ~15MW
[13:40:31] <A2Sheds> gas fired autoclaves
[13:40:37] <andypugh> What is that in $ per day?
[13:40:50] <A2Sheds> 6 cents per KWH
[13:41:37] <andypugh> $20,000 per day.
[13:42:14] <A2Sheds> 15MW x 12 hrs = 180,000 KWH = $10,800/day
[13:42:36] <andypugh> They could consider themselves as a gas-fired power station and get cement board as a byproduct
[13:42:46] <A2Sheds> heh, yeah
[13:42:51] <A2Sheds> goofy people
[13:42:54] <andypugh> I was running 24 hours a day.
[13:43:02] <jdh> someone would probably pay them to dispose of their waste heat for them.
[13:43:31] <andypugh> If they had flue-gas desulphurisation they could make gypsum board as a byproduct too.
[13:43:45] <A2Sheds> yeah, they run for 2 hrs, when they reach 130 PSI they stop and then run down to 0 over 2 hrs
[13:43:55] <djdelorie> they could heat the surrounding neighborhood's houses too
[13:44:01] <A2Sheds> they stagger 9 autoclaves now
[13:44:09] <andypugh> There's a thought. Somebody could buy their steam off of them.
[13:44:15] <A2Sheds> going to be 12 next year
[13:44:16] <tjb1> Whats interesting about this, the bend is at 26.5" away from the end just like the last one
[13:44:16] <djdelorie> free heat and hot water!
[13:44:36] <tjb1> I wonder if it is the clamping system they use to cut it?
[13:44:44] <A2Sheds> I told them the only way they could waster more money would be to truck the steam away
[13:44:46] <andypugh> tjb1: Is it definitely not the same piece?
[13:44:55] <tjb1> Positive
[13:46:07] <tjb1> http://sphotos.xx.fbcdn.net/hphotos-ash3/s480x480/561289_4037882061406_1667996533_n.jpg
[13:56:06] <tjb1> Sending another replacement
[13:56:34] <tjb1> The guy said the only time that these "kinks" happen is when the aluminum is at a near molten point…so during the extrusion process they are getting bent
[13:56:55] <tjb1> Maybe its when the extrusion hits the first transfer roller?
[14:00:57] <jdh> do they have a spec for straightness?
[14:01:58] <tjb1> Yes
[14:02:15] <jdh> who's the mfgr?
[14:02:18] <tjb1> Straightness - .0125" per foot of length, not to exceed .120 over 20 feet of length
[14:02:26] <tjb1> TSlots-Futura Ind.
[14:02:43] <jdh> wow
[14:03:20] <tjb1> Guess I am gonna have a lot of extra pieces
[14:03:45] <jdh> do you get to keep them?
[14:03:54] <jdh> how long were they?
[14:04:38] <tjb1> 10ft
[14:04:46] <tjb1> Yes, I get to keep them
[14:04:57] <jdh> so you have almost 8ft good?
[14:08:58] <tjb1_> sorry, phone overheated
[14:09:42] <tjb1> I get a good 2ft piece and a good almost 7 ft piece out of the bent 10ft pieces
[14:10:08] <jdh> make a really awkward shaped machine
[14:10:40] <tjb1> You would think they would check these pieces...
[14:11:31] <jdh> we use tons of extrusion... that bend probably would be fine for everything
[14:12:36] <jdh> I have one machine with two unsupported 15ft sections. It sags several inches in the middle. That bend woudln't be noticed.
[14:17:13] <tjb1> Pretty soon I will have enough to make another table...
[14:30:18] <FinboySlick> tjb1: Change the design to use 1/4" wall square tubing? They likely won't bend it.
[14:30:56] <tjb1> 1/4" square tubing in place of the extrusion?
[14:31:12] <FinboySlick> 1/4" would be the wall thickness.
[14:31:38] <FinboySlick> Not sure how big the extrusion is. I assume it's 3"?
[14:32:03] <FinboySlick> It'll be heavy but it won't bend.
[14:32:03] <tjb1> Yes, but I am using the extrusion for a reason :)
[14:32:50] <FinboySlick> You just need a really large machine to drill your rail-mounting holes.
[14:33:08] <FinboySlick> And ideally machine a slot to put the rail in.
[14:40:30] <andypugh> tjb1: Have you asked them to carefully check the next piece? And have you offered to return the bent ones?
[14:40:54] <andypugh> just to allay suspicion on the part of the vendor, mainly.
[14:40:54] <frallzor> a hey hey
[14:46:06] <tjb1> No I have not andy
[14:46:20] <tjb1> I suspect they dont want them back because return shipping would be more than the extrusion is worth
[14:46:50] <jdh> how much is shipping on 10ft extrusion?
[14:47:04] <tjb1> Its free for me but I was quoted around $160
[14:47:08] <jdh> I had to pay $20 for a single 8ft piece of tiny panduit
[14:47:29] <tjb1> The 10ft piece is only $94
[14:49:54] <tjb1> If they want the bad pieces back, they are more then welcome to pay the return shipping
[14:54:07] <Connor> jdh: No way to get it locally ?
[14:54:15] <jdh> not afaik.
[14:54:29] <Connor> You have a Greybar ?
[14:54:31] <jdh> turned out my enclosure came with a bunch. And then I didn't have room to use any anyway.
[14:54:34] <jdh> yeah
[14:54:40] <jdh> and a grainger
[14:54:46] <Connor> Greybar probably carries Panduit.
[14:54:47] <tjb1> I dont want to talk about my panduit…I screwed up and picked USPS and payed $44 for shipping 6-6' pieces
[14:58:31] <tjb1> Anyone need panduit :D
[15:01:14] <skunkworks> no
[15:29:38] <MrSunshine> on a vfd, the output for analog stuff (like having a pot for analog ref) is 10.5V but the range is 0 - 10V ... is it harmfull to push 10.5V into the analog ref ?
[15:30:52] <jdh> <insert spinal tap reference here>
[15:31:23] <MrSunshine> haha
[15:32:14] <jdh> I would doubt it cares. It might clip, or it might just go to 105%
[15:33:02] <tjb1> http://www.theverge.com/2012/6/26/3118592/leap-motion-gesture-controls
[15:33:46] <Tom_itx> greybar has tslot?
[15:33:56] <Tom_itx> oh nm
[15:34:16] <tjb1> Only $70 for that but I really dont see it taking off
[15:38:09] <MrSunshine> jdh, feels like it shouldnt be harmfull as itself is outputting 10.5V for analog ref control :p
[15:40:47] <tjb1> Tslots is trying to tell me that the .05" gap in 6" is within their tolerances.
[15:41:14] <tjb1> Because it is under .120"
[15:41:49] <archivist> aluminium extrusion is not that accurate
[15:42:20] <tjb1> Ok…here is their tolerance - Straightness - .0125" per foot of length, not to exceed .120 over 20 feet of length
[15:42:30] <archivist> we were told before we had some made
[15:42:42] <tjb1> http://sphotos.xx.fbcdn.net/hphotos-ash3/561289_4037882061406_1667996533_n.jpg
[15:42:58] <tjb1> That is out a 1/16" in 7"
[15:43:11] <tjb1> No longer a matter of "straightness", it is bent plain and simple
[15:43:41] <tjb1> You can look down the profile and see the exact point where the bend is
[15:44:02] <tjb1> It is not progressive, the bend happens at one spot and one spot only
[15:44:03] <Connor> 80/20? Or different brand ?
[15:44:10] <tjb1> tslots
[15:44:59] <tjb1> Maybe they need to take another look at the extruder...
[15:45:47] <Jymmm> More like drug/boose test the forklift driver
[15:46:40] <Connor> It looks identical to 80/20
[15:46:44] <tjb1> The guy said this can only happen during the extrusion process
[15:48:10] <andypugh> MrSunshine: I found a good device for VF driving, a totem-pole output opto-isolator.
[15:48:39] <MrSunshine> im using just optocouplers .. works fine? :)
[15:49:05] <andypugh> http://uk.rs-online.com/web/p/optocoupler/7344962
[15:49:34] <andypugh> The problem with a conventional optocoupler is that it doesn't suck the charge back out of the capacitor, so youneed a bleed resistor.
[15:50:53] <andypugh> That device needs PWM and logoc gnd to 2 pins on one side, and +10V and VFD gnd on the others, and the middle one is then a virtual pot.
[15:50:57] <MrSunshine> andypugh, humm ? what capacitor? :)
[15:51:30] <andypugh> The one in the low-pass filter?
[15:52:06] <MrSunshine> andypugh, ahh so i guess thats my 1k resistor to gnd then :P
[15:52:22] <andypugh> Or do you have a VFD that is happy with PWM input ?
[15:52:36] <MrSunshine> andypugh, nah
[15:52:43] <MrSunshine> converting pwm to analog
[16:06:17] <tjb1> Just took a look, every extrusion has a "crease" at the same area
[16:06:18] <andypugh> MrSunshine: So, presumably a capacitor and resistor then?
[16:06:27] <tjb1> Just 2 of them appear to actually have a noticeable bend at this crease
[16:06:46] <MrSunshine> two filters, an opamp for low impedance output and another capacitor for some extra voltage smoothing (optional dont know if i will need it) :P
[16:07:19] <MrSunshine> just a acap and resistor i only got 6V out of it
[16:07:20] <Connor> tjb1: Send'm back and order from 80/20
[16:07:29] <MrSunshine> when hooked up to the vfd
[16:07:54] <tjb1> The thing is Connor, this place quoted me much lower than 80/20 and the shipping was also free for me
[16:08:06] <Connor> tjb1: You get what you pay for ?
[16:08:41] <taiden> ygwypf
[16:08:45] <tjb1> Connor: I dont exactly think they are the harbor freight of extrusions
[16:09:20] <Connor> Didn't say that. But. I know 80/20 would not except that sort of imperfection in their product either.
[16:09:43] <Connor> I mean, they sell linear pads and stuff to use with their product.. it HAS to be straight for that kind of thing.
[16:09:44] <tjb1> I will be able to get 2 working pieces out of it
[16:10:01] <andypugh> MrSunshine: Ah, well, that chip + 1 resistor + 1 capacitor gives me full-swing and linear.
[16:10:04] <Connor> Yea, you'll have to cut it right at the bend.
[16:10:05] <tjb1> I will have to watch which side I use if I want to do any routing but the THC will take care of that
[16:10:23] <Connor> THC ?
[16:10:25] <andypugh> I guess your OP-amp solves the push-pull problem in your circuit.
[16:10:29] <tjb1> torch height control
[16:10:38] <tjb1> It can compensate for it but a router wont
[16:10:50] <tjb1> but then again I could face the spoilboard on the router to take care of that
[16:11:03] <Connor> You should do that anyway.
[16:11:29] <MrSunshine> andypugh, dont know realy what it solves more then that i can supply current and it will self adjust if voltage drops :P
[16:11:32] <tjb1> Guess I will just try to place the extrusion so it has the least effect and then eliminate it those ways
[16:12:19] <Connor> Yea, instead of placing it so the bend affects the Z..rotate it 90 degrees.
[16:12:33] <MrSunshine> andypugh, yeah that device looked neat =)
[16:12:46] <Connor> What size did you get ?
[16:13:11] <tjb1> Its 3"x3"
[16:13:27] <Connor> You have a 3"x"3 with a bend in it?
[16:13:29] <Connor> Wow.
[16:13:57] <Connor> What are you using as the linear guide?
[16:14:24] <tjb1> The CRS setup CNCrouterparts has
[16:14:25] <tjb1> http://sphotos.xx.fbcdn.net/hphotos-ash3/561289_4037882061406_1667996533_n.jpg
[16:14:29] <tjb1> Its hard to get a picture of it
[16:14:42] <tjb1> But if you look straight down the extrusion, you can actually see the light change where the bend is
[16:15:06] <tjb1> This is the first one -
http://sphotos.xx.fbcdn.net/hphotos-snc7/488111_4007149533112_1465635904_n.jpg
[16:15:11] <Connor> how long is that ?
[16:15:20] <tjb1> The whole extrusion?
[16:15:24] <Connor> yea
[16:15:29] <tjb1> 10ft
[16:15:35] <tjb1> The bend occurs at 26.5" on both
[16:15:56] <Connor> Clamping it maybe for cutting it while it's still hot ?
[16:16:18] <tjb1> Either that or this is happening when the extrusion hits the first support roller maybe?
[16:16:27] <andypugh> I wonder if you could push the kink out with a hydraulic jack?
[16:16:42] <tjb1> I will have to clean out around the press to try it
[16:16:45] <Connor> does the other side have a crown in it ?
[16:16:47] <DJ9DJ> gn8
[16:16:50] <tjb1> Yep
[16:17:03] <tjb1> Then the T-slot on the side is wavy
[16:17:47] <Connor> I would jump up and down and bitch till they sent a replacement.. not reason to have such a SHARP bend in one specific location.
[16:18:04] <Connor> I could see a slight crown over the whole length.. but, that's just not right.
[16:18:15] <tjb1> Yeah it occurs at one area
[16:19:03] <Connor> That doesn't sound like it happened at extrusion.. sounds like it happened after the fact.. shipping, storage, or something else.
[16:19:22] <tjb1> But a bend at the exact same point on 2 pieces?
[16:19:27] <tjb1> shipped two different companies
[16:19:34] <Connor> Then not shipping.
[16:19:42] <Connor> but, storage, or handling at the factory.
[16:19:46] <andypugh> http://www.ebay.co.uk/itm/110911991199 I have a bidder! I wonder if he has failed to grasp just what a big set it is? His other purchases don't hint at him having a huge machine tool.
[16:20:09] <tjb1> Just because you have a bidder doesnt mean they are going to pay ;)
[16:20:37] <Connor> Could be they have the parts laying flat on the ground with more stacked and had something under 1 side..
[16:20:38] <andypugh> I have been tripping over it for so long tghat the £75 it cost me is long forgotten
[16:20:50] <tjb1> The other pieces actually have a "crease" at the same area
[16:20:56] <tjb1> But they arent bent enough to affect anything
[16:21:05] <tjb1> It has to be something during extrusion
[16:21:29] <Connor> maybe 10' is just too damn long for them..
[16:21:42] <tjb1> I guess they are 20' long pieces?
[16:22:11] <Connor> Depends on the machine... and the stroke of the ram used to...
[16:22:16] <Connor> push the stuff out.
[16:22:36] <andypugh> Connor: There was something I meant to tell you next time I saw you. But I have forgotten what it was. Can you recall any topics we were discussing?
[16:22:37] <tjb1> And the size of starting piece vs output
[16:22:47] <Connor> andypugh: Power Draw Bar?
[16:22:53] <andypugh> Ah, yes.
[16:23:11] <andypugh> Did i give you the link to the belleville washer spreadsheets?
[16:23:17] <Connor> No.
[16:24:26] <andypugh> http://www.cnczone.com/forums/vertical_mill_lathe_project_log/41200-bt30_spindle_project-12.html#post796642
[16:24:31] <andypugh> (Link and explanation)
[16:26:06] <Connor> I think for the most part, Hoss has figured that out for me though..
[16:26:48] <Connor> Belleville Disc Springs - .453" Id, 1.188" Od, .089" Thick - Mcmaster.com #9712K436 (1) 6-pack
[16:28:43] <andypugh> $2 _each_!
[16:28:59] <andypugh> Though they are quite big.
[16:29:14] <Connor> 96445K267
[16:29:19] <Connor> those are the ones I have right now.
[16:29:20] <andypugh> Mine had to fit inside the drawbar, so it is something like 120 14mm dia ones.
[16:29:34] <andypugh> stacked in triples.
[16:30:41] <Connor> Looks like the biggest difference between the two is the thickness of them.
[16:30:51] <andypugh> This evening I wired up the pneumatic valve to the computer, with an interlock for zero spindle speed. (I even have the light on the tool-release button go off when the spindle is moving) :-)
[16:31:19] <andypugh> So my computer can now drop the tool on to the bed.
[16:31:32] <Connor> rofl
[16:32:23] <skunkworks> awesome..
[16:34:42] <Tom_itx> andypugh why you gettin rid of that?
[16:35:18] <andypugh> Tom_itx: Far too big for any of mine or my dad's machines.
[16:35:26] <Tom_itx> oh
[16:35:34] <andypugh> I wanted 5/8" slot, not 5/8" thread size
[16:35:37] <Tom_itx> we had those sittin by every machine
[16:35:42] <Tom_itx> ahh
[16:35:59] <Tom_itx> got one for a sherline? :)
[16:36:11] <andypugh> Yeah, I have a 1/2" for the milling machine, and they are imensely useful
[16:36:32] <andypugh> They might do a Sherline size, actually
[16:37:06] <Tom_itx> i have a few but you can't have too many of those
[16:50:52] <JT-Shop> the good news is the water heater is not leaking
[16:54:19] <gmagno> evening
[16:55:33] <gmagno> I'm building another cnc with a different driver board, and I'm having a little problem, during stepconf axis tests, pressing the left arrow instead of bringing the spindle to the bottom, it is doing the opposite... How can I invert this?
[16:55:58] <frallzor> I prefer the hardware way
[16:56:04] <gmagno> hmm
[16:56:13] <gmagno> changing the wires?
[16:56:15] <frallzor> si
[16:56:28] <gmagno> i thought about that
[16:56:42] <gmagno> but I thought you guys would have a diff approach by soft
[16:56:47] <frallzor> but its easy to do it in software
[16:56:50] <frallzor> simpler invert
[16:56:52] <frallzor> * -r
[16:57:00] <gmagno> where should I do that?
[16:57:19] <gmagno> this is the z axis only
[16:57:25] <gmagno> x and y are ok
[16:57:25] <frallzor> manually in stepconf if I recall correctly or by doing the wizard
[16:57:36] <frallzor> pretty sure there is a box to tick
[16:57:46] <gmagno> step conf does not have anything to do that
[16:57:57] <gmagno> there is a +/- button indeed but it has no effect
[16:58:12] <frallzor> the file stepconf
[16:58:21] <frallzor> related to the machine
[16:58:32] <gmagno> ok, let me open it
[16:58:43] <frallzor> but im not 100% sure, its been a while =)
[16:59:20] <gmagno> hmm :-/
[16:59:32] <gmagno> if you're not sure I'll do the hardware way
[16:59:46] <frallzor> but it should be self-explaining when one sees it
[17:00:03] <frallzor> pretty sure the file contained nice names for all settings
[17:00:43] <gmagno> I'm trying to find anything related to invertion of the axis
[17:02:49] <gmagno> Itried this zlatchdir=1 but no success
[17:07:45] <gmagno> tried zscale parameter with a minus (-400), but no success either... I'm going the hard(ware) way
[17:07:47] <gmagno> :P
[17:09:18] <gmagno> done :)
[17:25:18] <tjb1> Can anyone take a wfm file and convert it to jpg or gif?
[17:28:00] <Tom_itx> http://image.online-convert.com/convert-to-gif
[17:28:17] <tjb1> Doesnt work
[17:28:31] <andypugh> gmagno: A bit late, but simply inverting the "dir" pin might do what you want.
[17:29:01] <andypugh> But, if jog-up moves the axis down, I think the problem is that you have defined the axis end-points the wrong way round.
[17:29:35] <Tom_itx> tjb1 read it in paint and save it as a gif?
[17:29:49] <tjb1> I dont have paint, on a mac
[17:29:59] <Tom_itx> send it
[17:30:01] <tjb1> Dunno why they cant just make the oscilloscope save in jpg
[17:30:19] <andypugh> tjb1: Download Graphic Convertor. You won't regret it.
[17:30:21] <Tom_itx> why do you need gif?
[17:30:35] <tjb1> Thats $40 andy
[17:30:42] <tjb1> I dont, I just need something that will open
[17:31:33] <Tom_itx> http://torrentz.eu/gr/graphic+convertor+mac-q
[17:31:34] <Tom_itx> that?
[17:31:50] <tjb1> Well I can find it like *that* :)
[17:32:08] <andypugh> But that would be morally reprehensible.
[17:32:55] <tjb1> http://dl.dropbox.com/u/3090951/NewFile0.wfm
[17:33:15] <andypugh> Seashore is quite a nice Gimp wrapper for Mac
http://seashore.sourceforge.net/The_Seashore_Project/About.html
[17:33:26] <tjb1> I have a much better site than that for mac programs
[17:34:05] <andypugh> http://www.tek.com/oscilloscope/tds7054-software/tektronix-windows-oscilloscope-wfm-converter
[17:34:11] <Tom_itx> paint won't open that
[17:35:24] <tjb1> They should be shot for doing that
[17:37:05] <andypugh> I thought you meant WMF, WFM is different
[17:37:47] <tjb1> That Tek would work…if I was on windows
[17:37:50] <tjb1> ha
[17:37:56] <tjb1> No love for macs
[17:38:40] <tjb1> 25 minutes to download graphic converter
[17:38:42] <Tom_itx> login to access this content
[17:38:44] <Tom_itx> no thanks
[17:39:24] <andypugh> tjb1: I am not at all sure Graphic Convertor will work. It will do WMF, not sure about WFM
[17:40:06] <tjb1> I really love google
[17:40:11] <tjb1> I type in WFM converter
[17:40:19] <Tom_itx> ok, what's the easiest way to make the cnc file directory accessable to windows across the network?
[17:40:26] <tjb1> Wasnt paying attention and now I am downloading a wmf converter
[17:40:59] <Loetmichel> HARHAR
[17:41:37] <andypugh> tjb1: I have a solution for you. You can downlaod Octave (frewware Matlab) and then use:
http://www.mathworks.com/matlabcentral/fileexchange/14918-tektronix-wfm-file-reader
[17:43:06] <tjb1> Thanks andy
[17:43:13] <tjb1> Ill have to wait, thats another 120 mb download
[17:44:14] <andypugh> I already have it. Bear with me
[17:47:56] <andypugh> octave:8> wfm_ascii_dpo("NewFile0.wfm")
[17:47:57] <andypugh> error: File "NewFile0.wfm" is not a valid WFM file
[17:48:30] <Tom_itx> that's what i got too
[17:49:10] <tjb1> Heh.
[17:49:55] <tjb1> Guess Ill just take a picture of the damn screen with my phone
[17:50:21] <tjb1> Thanks guys
[17:50:36] <andypugh> It's a very short file.
[17:50:57] <andypugh> Try a hex-editor
[17:53:27] <r00t4rd3d> sparkfun is going to warranty my motor :D
[17:54:01] <r00t4rd3d> http://i.imgur.com/6kfw6.jpg
[17:54:07] <r00t4rd3d> in case anyone missed it
[17:54:39] <Loetmichel> HU?
[17:54:53] <Loetmichel> waht have you done to break that axle?
[17:55:02] <r00t4rd3d> got me
[17:55:08] <r00t4rd3d> used a dumpstercnc coupler
[17:55:16] <Tom_itx> Loetmichel look at the mount for your answer
[17:55:20] <r00t4rd3d> no flex
[17:55:43] <r00t4rd3d> others who have used dumpstercnc couplers have had breaks also i am reading
[17:55:50] <andypugh> Fatigue. Your fault.
[17:55:53] <Loetmichel> Tom_itx: didns see anything unusual
[17:56:09] <Tom_itx> i would much rather have a 4 point mount
[17:56:12] <Loetmichel> didnt
[17:56:27] <Tom_itx> no flex, there would be flex in that angle mount
[17:56:27] <r00t4rd3d> there is 4 points
[17:56:58] <tjb1> http://www.youtube.com/watch?v=RQqU2wtXeek&feature=plcp
[17:56:59] <Tom_itx> r00t4rd3d i'm talking about rigid standoffs
[17:57:12] <Loetmichel> Tom_itx: the axles of steppers this size are hardened steel 1/4"
[17:57:15] <r00t4rd3d> people use plastic
[17:57:20] <andypugh> The mount is fine. The coupling might be fine too. But, you need to tighten the coupling _then_ the motor mounts.
[17:57:42] <Loetmichel> i would call it impossible to break them with a bit flex in the angle mount
[17:58:54] <andypugh> Flex in the mount isn't a bad thing. The problem is that the axis of the motor and the axis of the leadscrew were not 100% aligned.
[17:58:56] <r00t4rd3d> the guys at Sparkfun are pretty amazed i broke it too
[17:59:10] <Loetmichel> btw, r00t4rd3d: this coupler is NO angle compensating type, or is it?
[17:59:18] <Loetmichel> just a double clamp?
[17:59:36] <r00t4rd3d> one end is threaded for 3/8 rod and the other 1/4 shaft
[17:59:49] <Loetmichel> that is a bit "not good", even if your motor mount is relatively ductile ;-)
[18:00:14] <r00t4rd3d> im going to get another flex mount like i have on my y axis
[18:00:27] <Loetmichel> for the next stepper: get some flex couplers
[18:00:30] <Loetmichel> ;-)
[18:00:35] <andypugh> Ah, that's a poor design then. The threaded rod will never truly align in the coupling.
[18:00:37] <Loetmichel> flex MOUNT?
[18:00:59] <r00t4rd3d> coupler
[18:01:05] <Loetmichel> ah, better ;-)
[18:01:38] <tjb1> Does that look pretty noisy anyone?
[18:01:40] <Loetmichel> it WORKS wit ha flex motor mount and a rigid coupler , too
[18:01:56] <Loetmichel> but thats called "cheating" and looks ugly
[18:01:57] <Loetmichel> ;-)
[18:02:48] <andypugh> So far I have always used belt drives. Not nearly as backlash-free, but save a lot of alignment worries.
[18:03:03] <r00t4rd3d> i have a belt on my Z
[18:03:16] <r00t4rd3d> all 3 of my axis are totally different in motion
[18:03:50] <Loetmichel> andypugh: me too
[18:04:05] <Loetmichel> i have experimeted with cheap bicycle chain also
[18:04:14] <Loetmichel> but have scrapped that as too loud ;-)
[18:05:27] <Loetmichel> http://www.cyrom.org/palbum/main.php?g2_itemId=4316
[18:05:37] <r00t4rd3d> i might put a belt on this one too. I have an extra gear for 3/8 rod
[18:05:43] <Tom_itx> i must be missing a step. i shared my nc_files dir and installed the windows network thingy but i can't connect to the directory
[18:05:47] <Tom_itx> ?
[18:05:57] <Loetmichel> works, no measurable backlash, but hell of a nouse at high rpm ;-)
[18:06:04] <Loetmichel> noise
[18:06:09] <jdh> can you see the computer from the winbox?
[18:06:13] <Tom_itx> it asks for a password but won't allow mine
[18:06:24] <jdh> you have to use smbpasswd
[18:06:48] <Loetmichel> Tom_itx: generate a suser in the windows box named like the linux user
[18:07:06] <Loetmichel> or set the windows dirs to "r/w for all"
[18:07:37] <jdh> I have a hard drive hooked up to my router. I save win* stuff to it and mount it under my nc_files dir
[18:09:23] <r00t4rd3d> usb hdd?
[18:09:59] <r00t4rd3d> or a sata hdd in a usb enclosure?
[18:10:03] <andypugh> Tom_itx: sudo apt-get install samba
[18:10:13] <Tom_itx> andypugh i think it is
[18:10:19] <r00t4rd3d> samba should be installed by default?
[18:10:29] <andypugh> Not on the LiveCD I don't think
[18:10:37] <Tom_itx> it went out and got it when i shared the dir
[18:11:05] <andypugh> I actually gave up on smb and went to afp
[18:11:35] <Tom_itx> i can get to the windoz box from linux
[18:12:13] <r00t4rd3d> turn off the firewall
[18:12:32] <Tom_itx> i would prefer it worked the other way so i can save my cad output directly to the linux box
[18:13:03] <Loetmichel> ah, ok, THEN you have to install samba
[18:13:16] <Tom_itx> i can see the dir in windows
[18:13:26] <Tom_itx> the user and password don't work
[18:13:41] <r00t4rd3d> sudo ufw status
[18:13:51] <jdh> that sounds like perms on the dir
[18:13:57] <r00t4rd3d> is status:active?
[18:14:39] <r00t4rd3d> sudo apt-get install gufw
[18:15:06] <Tom_itx> inactive
[18:15:12] <r00t4rd3d> whore!
[18:15:18] <Tom_itx> what is that?
[18:15:30] <r00t4rd3d> a nice girl
[18:16:13] <r00t4rd3d> do you have sshd installed?
[18:16:27] <Tom_itx> hell if i know
[18:16:30] <r00t4rd3d> can you get to the linux box from windows with putty?
[18:16:35] <Tom_itx> i installed filezilla
[18:16:38] <r00t4rd3d> no
[18:16:42] <r00t4rd3d> no filezilla
[18:17:02] <Tom_itx> well i needed that for something else
[18:18:45] <r00t4rd3d> use
http://winscp.net/eng/index.php
[18:18:47] <Tom_itx> i guess this will work for now
[18:19:02] <r00t4rd3d> that does everything
[18:19:04] <Tom_itx> i have winscp already
[18:19:13] <r00t4rd3d> ssh/ftp/etc
[18:19:18] <r00t4rd3d> oh good
[18:19:25] <Tom_itx> i want to save the cad right to the directory though
[18:19:36] <r00t4rd3d> permission denied.
[18:19:58] <r00t4rd3d> did you set the folder permissions to do that?
[18:20:06] <Tom_itx> i think so
[18:21:26] <Tom_itx> i think i got it
[18:22:11] <r00t4rd3d> sudo chmod -R 777 /yourfolderhere
[18:23:27] <Tom_itx> ok it won't work anyway
[18:23:35] <r00t4rd3d> why not
[18:23:38] <Tom_itx> my cad won't open the file
[18:23:46] <r00t4rd3d> permission denied.
[18:23:48] <Tom_itx> maybe that's a sharing issue but i thought i changed it
[18:24:26] <r00t4rd3d> check the properties of the file
[18:24:33] <r00t4rd3d> read/write/modify
[18:24:48] <r00t4rd3d> for all users
[18:25:29] <Tom_itx> i got it
[18:25:41] <r00t4rd3d> what you do
[18:25:59] <Tom_itx> deleted the file and sent it with the cad program
[18:26:13] <Tom_itx> now nobody own's it on the linux box
[18:27:12] <r00t4rd3d> changing the ownership in linux is something you should learn. File/folder permissions to be exact.
[18:27:21] <Tom_itx> i know how
[18:27:24] <r00t4rd3d> man chmod
[18:27:35] <Tom_itx> chown too
[18:28:18] <Tom_itx> http://computerplumber.com/2009/01/using-the-chmod-command-effectively/
[18:28:57] <r00t4rd3d> pfft 2009
[18:29:06] <Tom_itx> has it changed?
[18:29:32] <Tom_itx> i didn't think so
[18:30:22] <Connor> jdh: You around?
[18:30:28] <r00t4rd3d> i meant it like i was 19 years in when that was wrote
[18:30:46] <jdh> hey
[18:30:57] <Tom_itx> well you're not much older now
[18:31:12] <Tom_itx> except you can drink hard liquor now
[18:31:20] <r00t4rd3d> no, that i was using linux for 19 years before that was wrote.
[18:31:27] <Tom_itx> oh
[18:31:31] <r00t4rd3d> :)
[18:31:53] <jdh> in 1990?
[18:32:01] <r00t4rd3d> probably sooner
[18:32:02] <Connor> I've got to scuba regulators.. One is a Sherwood Magnum, the other is a Tusa
[18:32:17] <jdh> r00t: linux, in 1990?
[18:32:35] <r00t4rd3d> its been around alot longer then that
[18:32:42] <jdh> connor: one is crappier than the other.
[18:33:08] <r00t4rd3d> used might be too strong of a word, played with is more lik eit
[18:33:10] <r00t4rd3d> like it
[18:33:49] <Connor> I dove with the Sherwood..
[18:33:59] <Connor> The Tusa looks way crapper to me.
[18:34:10] <jdh> I'd agree :)
[18:34:32] <jdh> I'll look for a NPT fitting for it when I go back out.
[18:34:35] <Connor> So, use the Tusa for the regulator for PDB then and leave my Sheerwood alone.
[18:35:26] <Connor> Going to go hook them up to the tanks and see if the 2nd stages still work. :)
[18:43:33] <Connor> jdh: Looks like the HP on the Tusa has a small leak at the gauge..
[18:43:57] <Connor> I'll have to remove the stupid console rubber and investigate it.
[18:44:12] <Connor> all 2nd stages looked good.
[18:44:24] <Connor> I wouldn't dive with them right now though.
[18:45:21] <Tom_itx> well crap. i need a couple more inputs
[18:48:11] <jdh> there are two tiny o-rings on the HP swivel. lube and twist them.
[18:49:13] <Connor> for the gauge?
[18:49:30] <Connor> I don't think it swivels..
[18:49:50] <jdh> yeah. It does.
[18:50:02] <Connor> I've had these Since 1995.. and They had to be 10 years old when i got them. :)
[18:50:31] <Connor> okay, your right.. it does.
[18:50:48] <Connor> how do you get the rubber bootie off without cutting it off?
[18:51:26] <jdh> hot water
[18:53:22] <Connor> The Gauges are from a company called Tabata
[18:53:51] <jdh> tusa is tabata usa
[18:54:01] <Connor> ah. ok
[18:54:12] <Connor> this thing has 4 LP's and 2 HP's
[18:54:25] <Connor> Why would you need 2 HP's ?
[18:54:33] <jdh> or Totally Useless Scuba Apparatus
[18:54:51] <Connor> and the LP's are on a swivel connector..
[18:55:03] <jdh> hose routing. use one or the other
[18:55:15] <Connor> Ah. Left or right handed..
[18:55:20] <Connor> my Sherwood isn't like that.
[18:55:59] <jdh> thats not a bad one then. its a scubapro mk5 clone
[18:56:44] <Connor> Well.. it's in worst shape than the sherwood and I've never used it.. so.. I think it's the one that'll be used for the power drawbar.
[18:57:34] <jdh> I think I have 14
[18:57:48] <Connor> have 14 what?
[18:57:52] <Connor> Regulators?
[18:58:04] <jdh> yeah
[18:58:22] <Connor> I'll need to find some plugs for 2 of the LP hoses...
[18:59:09] <jdh> i have lots
[18:59:34] <Connor> okay, got the boot off of the gauge.. no hotwater needed..
[19:01:01] <Connor> not seeing how you can take the gauge off.. it swivels between the joint that's leaking.. and I don't see any other joints??
[19:01:44] <jdh> flat on the gauge and the next one down
[19:02:09] <Connor> ok.
[19:02:40] <Connor> then I should be able to pull the hose through the boot.
[19:03:01] <jdh> yep
[19:03:32] <Connor> any adjustments on this model for the 1st stage ?
[19:03:54] <Connor> I'm seeing all sorts of set screws...
[19:04:10] <Connor> and of course, looks like 1 very large on in the center...
[19:05:06] <jdh> dont try. should be 145 or so.
[19:05:14] <Connor> ok
[19:08:21] <Connor> Air Cylinder should be here friday.
[19:08:46] <tjb1> The arduino can read plasma voltage without anything in between it
[19:08:54] <tjb1> besides a voltage divider
[19:09:06] <Connor> tjb1: Was going to.. you need a voltage divider..
[19:09:20] <Connor> or that poor arduino is going to get cooked. :)
[19:11:13] <tjb1> Got a max of 632
[19:11:23] <tjb1> that comes out to about 154 volts if my math is correct
[19:13:25] <Connor> tjb1 must have shorted something out. :)
[19:14:21] <tjb1> That sound about right?
[19:14:44] <Connor> I know nothing about plasma voltage
[19:15:01] <tjb1> Its just math :)
[19:15:08] <tjb1> 632 = 3.088v
[19:16:09] <tjb1> Maybe its 216 volts...
[19:16:30] <Connor> whats the ohm's on the VD ?
[19:16:41] <tjb1> VD?
[19:16:46] <Connor> Voltage Divider
[19:16:50] <tjb1> 2k-5k
[19:16:55] <tjb1> takes 7 to 5
[19:17:21] <tjb1> means 4.323 is coming into divider
[19:17:45] <tjb1> Yeah 216 volts
[19:17:55] <tjb1> 4.323*50
[19:18:54] <Connor> Umm...
[19:18:57] <Connor> wait.
[19:19:06] <Connor> you have a 2k and a 5k for the Voltage divider ?
[19:19:11] <tjb1> yes
[19:19:20] <Connor> what's the output before the VD ?
[19:19:25] <tjb1> max of 7
[19:19:32] <Connor> okay.
[19:20:09] <Connor> okay, so. 7v is what voltage for the plasma ?
[19:20:20] <tjb1> 350
[19:21:02] <Connor> okay. so .02mv per v
[19:21:23] <Connor> and you need to scale the 7 down to 5
[19:21:52] <tjb1> If I reverse the voltage divider calculator
[19:21:54] <tjb1> 3.088 out is
[19:22:01] <tjb1> 4.323 in
[19:22:13] <tjb1> Take that times 50 and its 216
[19:24:48] <tjb1> For the arduino I just need to take the analog voltage and multiply that by 70.142 to get the arc voltage
[19:25:11] <tjb1> I can display that on a 16x2 LCD
[19:25:18] <tjb1> Use pot to adjust range
[19:25:53] <Tom_itx> you may want to add a resistor to the pot wiper in case of a short
[19:26:28] <tjb1> Where?
[19:27:18] <Tom_itx> usually if you turn a pot all the way it will hit the end stops and be 0 ohm
[19:27:28] <Tom_itx> adding a resistor to the wiper will prevent that
[19:27:35] <Tom_itx> unless you desire that effect
[19:27:48] <tjb1> So a resistor there will make it whatever the resistor value is
[19:27:59] <Tom_itx> yeah
[19:28:02] <tjb1> and if its a 10k the high value will be 10k + resistor?
[19:28:04] <Tom_itx> like 100 ohm or something
[19:28:23] <Tom_itx> test it
[19:28:24] <Tom_itx> and see
[19:28:32] <tjb1> I gotta go install cabinets
[19:28:35] <tjb1> Done testing for now
[19:29:02] <tjb1> Next step is either having arduino solely control the z axis or send the signals into linuxcnc
[19:32:40] <tjb1> So my THC will work for hypertherm plasma :)
[19:32:43] <tjb1> but not any others
[19:58:39] <r00t4rd3d> you have a grbl shield?
[20:06:22] <jdh> connor: can't find any NPT fittings. Found lots of port plugs though.
[20:18:39] <r00t4rd3d> will a flex coupler with a smooth 3/8 bore hold good on 3/8 threaded rod?
[20:20:12] <jdh> clamp coupler?
[20:20:22] <r00t4rd3d> yeah
[20:20:30] <r00t4rd3d> http://www.ebay.com/itm/Flexible-Aluminum-Shaft-Coupler-1-4-x-3-8-CNC-Router-Mill-Ships-from-USA-/280915398272?pt=LH_DefaultDomain_0&hash=item4167dcce80
[20:20:33] <r00t4rd3d> like that
[20:21:44] <jdh> maybe, if it clamps tighter than 3/8
[20:22:03] <jdh> what's the real diameter on your rod?
[20:22:07] <Jymmm> http://www.suntekstore.com/goods-14002023-stepper_motor_flexible_shaft_coupling_coupler_635x8mm.html
[20:22:21] <Jymmm> http://www.suntekstore.com/goods-14000192-one_aluminum_flexible_coupler_for_stepper_motor_1in_x_075in.html
[20:22:40] <r00t4rd3d> 3/8 is 9.52mm
[20:23:00] <jdh> measure your rod
[20:23:11] <Jymmm> thats what she said
[20:24:56] <r00t4rd3d> i might just belt drive it
[20:25:23] <jdh> sdp-si.com
[20:26:02] <r00t4rd3d> cncrouterparts.com im sure is cheaper
[20:26:57] <r00t4rd3d> http://www.cncrouterparts.com/nema-23-rp-motor-pulley-p-71.html
[20:27:15] <r00t4rd3d> i have an extra 3/8 one already
[20:28:43] <r00t4rd3d> i should put a motor on each end
[20:28:51] <r00t4rd3d> 2 wheel drive
[20:45:48] <Connor> jdh: Okay Cool. Were can I find NPT fittings ?
[20:49:33] <jdh> if you have an inflator hose, you can get an adapter that plugs in and has npt
[20:49:52] <Connor> The both have standard BC hoses.
[20:49:59] <Tom_itx> Valen, i took all the extra moves out of my program and bumped the feed/speed up some. works like a champ
[20:50:08] <Connor> the quick release ones..
[20:52:04] <jdh> dive shops have them. sometimes with tire inflators on them.
[20:52:11] <Connor> ok
[20:52:50] <Connor> I'll visit Rheas Dive shop in Maryville.. or see if there is a one here close by
[20:53:25] <jdh> or cut a crappy hose and stick a barb fitting on it.
[20:54:01] <Valen> i thaught it might ;->
[20:54:15] <Valen> anyway time to go do some milling myself
[20:54:41] <Tom_itx> i didn't bump it up alot but some
[20:54:52] <Tom_itx> getting rid of the extra passes was a big help
[20:56:18] <Tom_itx> ok i've got a question about cutting plastics. how does plexiglas cut compared to ABS? as far as heat, feeds and speeds etc
[20:59:06] <Valen> plexiglas acrylic or polycarb?
[20:59:13] <Tom_itx> acrylic
[20:59:26] <Valen> its easier to cut
[20:59:50] <Valen> abs is soft, acrylic is hard so it shaves off easier
[21:00:11] <Tom_itx> ok, going from a .031" cutter to a .187 and ABS to acrylic how much should i adjust the feed?
[21:00:38] <Tom_itx> i was feeding the .031 at 8 ipm and it was doing real good
[21:00:49] <Tom_itx> i don't wanna get the acrylic hot
[21:00:52] <Valen> i dunno the numbers i'd just to some test cuts until it seems the sweet spot
[21:01:03] <Tom_itx> yeah it takes a while to find it
[21:01:20] <Valen> just do cuts in the bulk plastic, not making parts
[21:01:26] <Tom_itx> i gotta get my spindle encoder working
[21:01:33] <Tom_itx> pfft
[21:01:57] <Tom_itx> should i make 2 passes in .250" material or just one?
[21:02:13] <Tom_itx> i'm afraid it will ball up on the cutter
[21:02:14] <Valen> what size cutter?
[21:02:20] <Valen> nah it shouldn't ball
[21:02:20] <Tom_itx> .187"
[21:02:35] <Valen> nah it should do it in one pass ok
[21:02:44] <Tom_itx> i'll hold you to your work :D
[21:02:48] <Tom_itx> word*
[21:02:49] <Valen> we cut 3mm with a 2mm cutter in one pass
[21:03:16] <Valen> i'm not usually the person running the machine so i don't rember the details
[21:03:48] <Tom_itx> i've got extra plastic i just don't wanna break a new cutter
[21:04:10] <Tom_itx> .218" thick material
[21:04:11] <Tom_itx> just mic'd it
[21:04:46] <Tom_itx> 7/32"
[21:05:24] <Tom_itx> it's just a tool holder for all my collets and mills
[21:11:22] <taiden> i'm really shocked
[21:11:34] <taiden> at how hard it is to find a hot glue gun with an extended tip
[21:11:58] <Connor> http://www.suntekstore.com/goods-14002532-dc_12v_14_inch_electric_solenoid_valve_for_air_water.html
[21:12:00] <taiden> there seems to be a single place that sells them but they are for $100+ glue guns
[21:12:12] <Connor> wonder if two of those would work for the setup..
[21:12:14] <taiden> I use a $5 glue gun that works fine but the reach isn't good enough
[21:12:25] <Connor> looks like they're good up to 142PSI
[21:21:36] <jdh> I think you only need one.
[21:36:30] <Connor> jdh: Need two. I need one for push and one for pull
[21:45:47] <Jymmm> Free Slurpees today till 2300
[22:07:20] <Jymmm> How do you cut/drill ferrocerium?
[22:18:14] <tjb1> This cabinet is being a pigme >:(
[22:42:36] <Tom_itx> any way i try doesn't seem to be right
[22:43:07] <Tom_itx> i guess i may have to break the program up by tools until i can figure out how the table works in relation to the z fixture offsets.
[22:52:23] <toastydeath> Tom_itx, traditionally the first tool sets the work plane and then all other tools are touched off from that plane - i.e. relative to the first tool's length
[23:01:04] <Tom_itx> well it isn't working like that
[23:01:27] <Tom_itx> that's kinda what i thought too. it's how we normally set our machines up
[23:01:38] <Tom_itx> but i'm still getting used to linuxcnc
[23:02:07] <Tom_itx> i tried setting with the first tool in the program and also with the first tool in the tool table
[23:02:20] <Tom_itx> and each time the 2nd tool called up had the wrong offset
[23:03:07] <Tom_itx> i'm not using touchoff. rather presetting the tool lengths and entering them in the table
[23:03:27] <Tom_itx> and using the first tool called as zero offset for both the tool and the work offset
[23:05:04] <Tom_itx> i broke the program up into tools and it works fine
[23:05:20] <Tom_itx> i would like to figure out how the tool table is supposed to work though
[23:05:40] <tjb1> Got the two island cabinets in, perfectly level and with a perfect 24" gap between them
[23:05:46] <tjb1> Im ecstatic
[23:05:47] <Tom_itx> we would typically use a dowel pin to set the initial tool and fixture zero
[23:06:02] <Tom_itx> and set all the tools from that
[23:06:23] <Tom_itx> and that's what i tried here but it didn't work as expected
[23:09:31] <Tom_itx> i don't have a tool changer but i did set up manual tool change and that part works fine as well.
[23:10:26] <Tom_itx> i can post each tool separately but it's a pita and hopefully can be avoided
[23:12:49] <Tom_itx> toastydeath, does the first tool need to be the longest or does that matter?
[23:12:53] <Tom_itx> it shouldn't matter
[23:12:59] <toastydeath> doesn't matter
[23:13:06] <toastydeath> there's some best practice argument
[23:13:07] <Tom_itx> you just adjust your offset positive or negtive accordingly
[23:13:13] <Tom_itx> i know
[23:13:22] <Tom_itx> best to set the longest first probably
[23:13:26] <toastydeath> ya
[23:13:39] <toastydeath> i'm sure you've experienced the same, it doesn't help the majority of crashes
[23:13:44] <Tom_itx> that's why i'm testing it well above the work first
[23:13:57] <Tom_itx> once i figure it out i'll feel better
[23:15:09] <Tom_itx> i don't feel confident enough yet to post code and run it. i've been doing dry runs on each progressive step with linuxcnc
[23:15:38] <Jymmm> Tom_itx: just set zero 2" higher than it should be =)
[23:15:44] <Tom_itx> i am
[23:16:07] <Tom_itx> then i check where the tool should be with a 123 block
[23:16:19] <Tom_itx> and it's not where it should be yet :)
[23:16:29] <Jymmm> how do you mean?
[23:16:39] <Tom_itx> i start with T10
[23:16:45] <tjb1> How do you keep your tools from rusting when they sit in the toolbox for an extended time?
[23:16:55] <Tom_itx> set z zero offset and set the tool to zero offset
[23:17:03] <toastydeath> tjb1, light oil
[23:17:05] <Tom_itx> next tool i set relative to that point
[23:17:09] <toastydeath> also, keep them in a dry place
[23:17:18] <Tom_itx> and enter z in the tool table
[23:17:22] <Jymmm> tjb1: fill the draw full of oil
[23:17:22] <toastydeath> and keep some kind of dessicant in the box drawers
[23:17:29] <tjb1> Well I dont exactly have a choice at school
[23:17:48] <tjb1> I have 1-2-3 blocks rusting, a grinding vise, sine bar...
[23:17:53] <Jymmm> oil soaked rag, then wrap in foil
[23:18:04] <Tom_itx> cosmolene
[23:18:10] <Jymmm> Tom_itx: ew
[23:18:16] <Tom_itx> very effective
[23:18:22] <Jymmm> no cosmolene@
[23:18:45] <tjb1> What takes rust off without ruining the finish?
[23:18:57] <Tom_itx> pickling
[23:20:05] <Tom_itx> http://en.wikipedia.org/wiki/Pickling_%28metal%29
[23:20:50] <tjb1> So just dip them in hydrochloric acid
[23:21:12] <Tom_itx> i'd try another approach before i did that
[23:21:23] <Jymmm> CLR?
[23:21:44] <tjb1> Wonder if blaster and a paper towel would do any good
[23:22:03] <Tom_itx> 3m pad
[23:22:10] <Tom_itx> and some oil
[23:22:11] <Jymmm> just rub them with oil and LIGHTLY with a scotchbright pad
[23:22:20] <Tom_itx> that's what i just said
[23:22:21] <Tom_itx> :)
[23:22:40] <tjb1> I did walmart gun blue most of the stuff I made
[23:22:41] <Jymmm> Tom_itx: you didn't say LIGHTLY biotch =)
[23:22:45] <tjb1> It helped but they still rusted a little
[23:22:52] <Jymmm> tjb1: So?
[23:22:59] <Jymmm> tjb1: MORE oil
[23:23:02] <Tom_itx> and a white 3m pad is finer than say the green or blue or purple
[23:23:15] <tjb1> I shall oil the hell out of them :)
[23:23:24] <Jymmm> tjb1: monthly
[23:23:35] <tjb1> weekly.
[23:23:37] <tjb1> ;)
[23:24:49] <Jymmm> minutely
[23:25:00] <Tom_itx> pickling will sometimes leave pits and you don't really want that
[23:25:12] <Tom_itx> if the rust has done the damage already
[23:29:01] <tjb1> Im certainly not re grinding the stuff
[23:29:22] <toastydeath> scrape it in
[23:29:26] <toastydeath> clearly
[23:29:30] <tjb1> I despise surface grinding
[23:29:43] <toastydeath> lol what
[23:29:47] <toastydeath> how can you hate grinding
[23:29:53] <toastydeath> it's long and you can walk off and do other bullshit
[23:30:23] <tjb1> Ive never gotten to use the auto grinders
[23:30:46] <toastydeath> Oh.
[23:30:46] <tjb1> Now do you understand? :)
[23:30:50] <toastydeath> that would explain it, yeah.
[23:31:02] <tjb1> Sit there for hours and get a huge left arm
[23:31:16] <toastydeath> does it have auto feed on Y
[23:31:23] <tjb1> No it was all manual
[23:31:41] <toastydeath> really?
[23:31:46] <tjb1> Yep
[23:31:48] <toastydeath> every single stroke on X you have to move it by hand
[23:31:55] <tjb1> Yes
[23:31:56] <toastydeath> is the X auto at least?
[23:32:00] <tjb1> Nothing was auto
[23:32:08] <toastydeath> I'd crush feed it
[23:32:31] <toastydeath> near full depth, full pass on wheel width
[23:32:35] <toastydeath> slow as balls
[23:32:53] <tjb1> Slow as balls, one false move and you blow the wheel up
[23:32:57] <toastydeath> neg
[23:33:02] <toastydeath> you're doing it in the wrong direction if that happens
[23:33:11] <tjb1> feed against then
[23:33:14] <toastydeath> yep.
[23:33:25] <toastydeath> then you only have to do one final pass
[23:33:29] <tjb1> Always dressing the damn wheel...
[23:33:45] <tjb1> coolant everywhere :P
[23:34:02] <tjb1> It was the highlight of my monday and wednesdays from 5 til 9pm
[23:34:22] <toastydeath> something's wrong if you're redressing the wheel THAT often
[23:34:53] <tjb1> Its a school, we cant leave them on :)
[23:34:59] <tjb1> Turn them off, then turn them back on and off then on
[23:35:28] <toastydeath> ...?
[23:35:39] <tjb1> Suppose to leave surface grinders run
[23:35:59] <toastydeath> you have a lot of spindle movement as it warms up, i guess
[23:36:05] <toastydeath> sucks
[23:36:12] <tjb1> Then the chance the wheel slips off center
[23:36:18] <toastydeath> get really good at flycutting then
[23:36:23] <tjb1> Easier to dress then to screw it up
[23:36:44] <toastydeath> we got really good at flycutting large pieces and on a good mill it rivals grinding for most tolerances
[23:36:57] <tjb1> Most of the stuff we were grinding was made 2-3 semester earlier so you didnt want to screw it up
[23:37:22] <tjb1> Yeah thats another problem, we have no good cutters
[23:37:33] <toastydeath> flycutting is no harder to do than grinding
[23:37:43] <tjb1> If there is a carbide cutter someone has cranked the insert in so hard that you have to break the insert to get it out
[23:38:00] <tjb1> They really shouldnt let the students change inserts
[23:38:23] <tjb1> Ive broken/stripped/twisted multiple allen wrenches
[23:38:26] <toastydeath> lol
[23:38:28] <toastydeath> i love students
[23:38:56] <toastydeath> I saw one kid accidentally discover friction welding when he ran a 1" hss bit backwards at 2400 rpm
[23:38:58] <toastydeath> through steel
[23:39:09] <tjb1> No surprise
[23:39:48] <tjb1> We have an edm teacher, not sure if he is serious but he said this one metal pipe was to listen to the arc
[23:39:59] <tjb1> No way in hell I am sticking a metal pipe near a wire edm
