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[00:21:18] <CaptHindsight> http://www.3ders.org/articles/20160718-kickstarter-for-versa3d-all-in-one-3d-printer-cnc-mill-laser-cutter-launches-today.html
[00:21:44] <CaptHindsight> "Jack of all trades, master of none."
[00:23:07] <tiwake> CaptHindsight: that looks very not-ridged
[00:24:58] <CaptHindsight> don't bring science. logic and reason into this :)
[00:25:48] <CaptHindsight> another butter cutter!
[00:26:27] <tiwake> CaptHindsight: lets add a 5-axis grinding wheel to it
[00:26:48] <tiwake> you know, to smooth out the 3D printed edges
[00:27:18] <CaptHindsight> held on by rubber bands
[02:47:05] <tiwake> https://www.youtube.com/watch?v=o1dBg__wsuo
[02:47:17] <tiwake> Mendelssohn Violin Concerto E Minor OP.64 (Full Length) : Hilary Hahn & FRSO
[02:50:01] <Cromaglious_> nice
[02:50:19] <tiwake> one of the best violin concertos ever written
[02:52:27] <tiwake> one of these days I'm going to build a robot to accurately and reliably reproduce such music on strings
[03:06:33] <Sync> hm
[03:09:13] <tiwake> people don't realize how easy it is to make amazing things
[03:13:07] <archivist> I remember someone made a violin playing machine in the 1970's
[03:29:12] <TurBoss> morning
[03:30:07] <pingufan> Hi, is somebody here from Australia?
[03:30:45] <archivist> we have a few lurkers/users in au
[03:31:31] <pingufan> Hi, archivist. This is because yahoo tv has one movie I need. But they lock to Australia.
[03:32:09] <pingufan> So if one could download that single movie and forward it to me, it would be very kind.
[03:36:03] <TurBoss> I have configurer(not sure how) my gantry to use joints :D but the home process is independent for each motor, how i can home the gantry with dual Y motors?
[03:36:11] <TurBoss> configured*
[03:37:48] <archivist> there are docs for gantry homing somewhere
[03:38:23] <TurBoss> ok thx
[04:52:53] <XXCoder> booyah
[05:04:21] <jthornton> morning
[05:05:08] <XXCoder> what up
[05:05:20] <archivist> hole is down
[05:05:54] <jthornton> rain
[05:06:03] <XXCoder> hole is filled with water
[05:06:04] <jthornton> keeping the concrete away
[05:57:05] <Deejay> moin
[06:19:26] <jthornton> crap it's raining again
[06:21:06] <jthornton> some heavy rain to the west but it's moving NE maybe it will miss me
[06:21:06] <_methods> wash your car or pour some cement
[06:21:15] <_methods> see how fast the rain shows up
[06:21:47] <XXCoder> I wish its raining here
[06:22:00] <XXCoder> washington state may have escaped heat wave but its still hot
[06:22:07] <_methods> moss between your toes starting to dry up?
[06:22:26] <XXCoder> it rarely rains here in summers
[06:22:33] <XXCoder> my van is actually dry!
[06:25:41] <jthornton> you on the east side of washington state?
[06:25:49] <XXCoder> west
[06:26:54] <jthornton> I thought the west side was always raining
[06:27:05] <jthornton> or is that only the north west part
[06:27:37] <_methods> his definition of rarely rains is totally different from the rest of the world
[06:27:47] <_methods> that means it just rains 3 days out of the week
[06:28:05] <_methods> :)
[06:28:22] <_methods> you get about 2-3 nice months during the summer
[06:28:40] <jthornton> I thought he meant it only rains once or twice a day
[06:28:45] <_methods> haha
[06:33:02] <XXCoder> actually that USED to be true in summers here (rain per 3 or 5 days)
[06:33:09] <XXCoder> but it havent been true for couple decades
[06:36:39] <Tom_shop> looks like it's building strength
[06:50:54] <jthornton> looks like rain the rest of the week here
[06:51:13] <jthornton> just installed the debian livecd and now I don't have a network connection...
[06:54:32] <jthornton> switch to linuxmint and the internet works...
[07:09:46] <jthornton> I guess I answered a question wrong... trying again to get debian to work sigh
[07:11:23] <jthornton> it says device eth0 does not exist...
[07:12:26] <Sync> maybe it is just called differently
[07:17:31] <_methods> wow your wired network connection doesn't work?
[07:18:35] <jthornton> yea, I can plug in a linuxmint hd and it works
[07:18:52] <_methods> well it's obviously a driver issue with debian then
[07:19:12] <_methods> cat /var/log/dmesg |grep -i eth0
[07:19:21] <_methods> what's that return for your card?
[07:19:53] <jthornton> reinstalling a vanilla debian wheezy atm
[07:19:56] <_methods> k
[07:20:05] <_methods> well that may return nothing if its not recognized
[07:20:14] <_methods> lspci | grep Ethernet
[07:20:17] <_methods> might have to do that first
[07:20:30] <_methods> then find the correct driver
[07:20:58] <_methods> you'll probably have to put the driver on a thumb drive to put on that computer since you have no eth
[07:21:12] <_methods> PITA
[07:21:38] <barubaru> Why cnc are done in a cube-like structure and how much worse precision will be in a hand-like cnc?
[07:21:40] <jthornton> it's an Asrock H97 Pro mb
[07:22:04] <SpeedEvil> http://up-shop.org/ - on the topic of small x86 pi-esque boards.
[07:23:19] <SpeedEvil> $99 'desktop' with a CPLD based GPIO
[07:23:23] <_methods> wtf it has intel eth chipset
[07:23:43] <_methods> pretty sad if debian isn't working with an intel eth chipset
[07:24:35] <jthornton> the vanilla is connected to the internet and retrieving files
[07:25:26] <SpeedEvil> barubaru: 'hand like' ?
[07:25:31] <_methods> ah so it's fine with vanilla debian?
[07:25:40] <jthornton> seems to be
[07:25:44] <_methods> just the linuxcnc livecd eth isn't working?
[07:25:55] <jthornton> the last time it was the linuxcnc livecd
[07:26:10] <barubaru> SpeedEvil: i mean robot arm, when instead of frame you only have a arm-like manipulator with cutter\drill installed in it
[07:26:25] <jthornton> I'm going for rt preempt uspace master anyhow
[07:26:33] <SpeedEvil> barubaru: it is a hell of a lot harder to get rigidity.
[07:26:42] <SpeedEvil> barubaru: where 'harder' means more expensive.
[07:26:50] <_methods> jthornton: you can look at what driver is working for you now
[07:27:03] <_methods> then just remember that to download and use with the livecd
[07:27:04] <SpeedEvil> barubaru: A $500 mill might take a $50000 arm to do the same.
[07:27:20] <barubaru> SpeedEvil: yeah, but its possible and it does give lots of advantages like ability to grab and move objects to make many items in a line or to form a conveyor
[07:27:28] <barubaru> Ohh
[07:27:56] <barubaru> Why is it so much more expensive?
[07:28:01] <jthornton> it's still installing, this is a network install cd so it has to download 970 files
[07:28:16] <_methods> ouch
[07:28:26] <_methods> don't you have limited bandwidth?
[07:28:34] <jthornton> I'm still in free time for the next hour
[07:28:40] <_methods> ah ok
[07:29:00] <jthornton> I do all my downloading from 5ish to 8am
[07:29:02] <SpeedEvil> barubaru: because you need tightly fitting joints, with one highly controlled degree of freedom, and no flex in other directions.
[07:29:22] <SpeedEvil> barubaru: this is unfortunately expensive.
[07:29:54] <jthornton> a stuart platform would be better than an arm
[07:30:01] <SpeedEvil> barubaru: and with a conventional mill, all joints are 'in parallel' to a degree mechanically - they are seperately supported.
[07:30:10] <jthornton> but I've seen foam milling arms somewhere
[07:30:30] <SpeedEvil> barubaru: with an arm, you have to support all joints from the base, meaning that as you go up the arm, the forces get quite high indeed.
[07:30:32] <SpeedEvil> Sure.
[07:30:45] <SpeedEvil> Foam milling is ~0 force, and you probably don't care about small errors.
[07:32:06] <_methods> https://www.youtube.com/watch?v=wCfQnsp1dpA
[07:32:15] <_methods> okuma hexa hehe
[07:32:50] <barubaru> Is there some sort of average between cube frame and arm-like manipulator?
[07:33:52] <barubaru> Or just any other types
[07:35:11] <jthornton> I'd hate to try and program that okuma lol
[07:39:58] <_methods> i think i saw where some MIT kids were making an l-shaped cnc
[07:43:10] <barubaru> _methods: I or L?
[07:43:20] <_methods> L
[07:43:26] <_methods> i can't find it anymore though
[07:47:17] <barubaru> What positioning system are you usually using guys? Encoder?
[07:50:43] <jthornton> servo feedback is usually an encoder, stepper is usually open loop
[07:53:34] <jthornton> I'm thinking of cutting my beard off for the rest of the summer
[07:55:20] <barubaru> jthornton: you could trim it a bit, when its short it doesnt do any bad
[07:56:02] <barubaru> Did anyone try to make ultra sonic positioning system?
[07:56:04] <jthornton> yea it's 6" long and gets caught in everything lol
[07:56:29] <jthornton> I used one once on a wood chip bin
[07:57:19] <barubaru> What did it do in a chip bin?
[07:57:38] <jthornton> tell the PLC to stop filling it up
[07:58:18] <jthornton> and tell it when to start filling
[07:58:45] <barubaru> Ah, so it was like a filling-sensor. I was talking about trying to sense the position of a working tool of cnc
[07:59:03] <jthornton> yes I know
[08:09:04] <Sync> if you could acheive sub 1µm resolution with ultrasonics, people would do it
[08:09:51] <barubaru> Sync what is a precision with open loop and encoder?
[08:09:57] <archivist> for that laser interferometer
[08:10:46] <Sync> encoder and openloop are two different things
[08:11:03] <barubaru> Also you can achieve 1um. It will only take 300mhz sound =) magnetic permeability based speaker and radio-frequency generator and transmitter/receiver =0
[08:11:03] <Sync> encoder as good as the encoder is + ballscrew pitch error
[08:11:26] <Sync> you probably can, but why if you can just use an encoder?
[08:12:04] <barubaru> But can encoder do 1um? I doubt that cheap encoder can do that. Gear gap is bigger anyway
[08:13:47] <barubaru> Also you can achieve sub-wavelength frequency for sound by phase comparing. That reduces the needed frequency in 10-100 times
[08:15:59] <_methods> have you ever run a cnc mill?
[08:16:15] <_methods> s/run/operated
[08:16:28] * archivist giggles
[08:16:55] <barubaru> _methods: nope. I wouldnt ask such dumb questions if i would =)
[08:17:12] <Sync> you don't have gears barubaru
[08:17:14] <_methods> yah i think just seeing one in operation would clear up a lot of your questions
[08:17:47] <barubaru> Sync belt drive? There is still a gear to pull it
[08:17:48] <_methods> probably initiate a substantial amount more in the process though lol
[08:17:58] <archivist> 1 micron is hard, thermal expansion
[08:18:28] <barubaru> What is practical result for homemade cnc? I guess its somewhere 100-10 microns, right?
[08:18:47] <_methods> depends on skill/money/time
[08:21:17] <archivist> thinking of "skill/money/time" has pollyputthekettle on got his running yet
[08:21:28] <_methods> ugh
[08:21:41] <_methods> please don't invoke he/she's name
[08:21:52] <_methods> it may appear
[08:22:16] <archivist> Icanhazstirringstick
[08:22:37] <_methods> it's been so nice in here
[08:23:01] <barubaru> What is the cheapest setup for 10um precision and 10cm*10cm*1mm or more area?
[08:23:22] <archivist> 1mm height!
[08:23:37] <barubaru> I mean what order of magnitude would it be, 100-1000-10k bucks?
[08:23:39] <_methods> maybe one of those chinese 3020's
[08:23:55] <_methods> http://www.ebay.com/itm/New-CNC-Router-Engraver-Milling-Machine-Engraving-Drilling-3-Axis-3020-Desktop-/121547655589?hash=item1c4cce09a5:g:DVgAAOSw~gRV1vIK
[08:24:03] <_methods> $450
[08:24:13] <_methods> has more travel than you specified
[08:24:24] <barubaru> wow, thats cheaper than i thought
[08:24:43] <archivist> but not 10 micron
[08:25:44] <_methods> you won't find much in the hobby range at that resolution
[08:26:37] <Sync> barubaru: direct drive is the way to go
[08:26:44] <barubaru> Btw. How do you calculate orecision? Is it precision of furthest points or local precision? Like if precision is 10um, does it mean that it can do 10um lines locally or that it will have 10um total error in furthest points?
[08:27:19] <archivist> do not confuse accuracy with precision
[08:27:20] <barubaru> Sync: linear direct drive?
[08:27:33] <barubaru> archivist: right. I do confuse them. Which is what?
[08:28:33] <archivist> precision how small/resolution of a move, accuracy how near to where it should be
[08:28:45] <Sync> no, you put your motors directly on the screw shaft
[08:30:13] <barubaru> archivist: right, so precision can be 10um and accuracy can be 100um at the same time, right?
[08:30:30] <archivist> yes
[08:31:31] <barubaru> So when we are talking about a step size, precision, how hard is it to achieve 10um or less?
[08:32:10] <archivist> not that hard
[08:33:01] <archivist> glass scales and a servo
[08:33:16] <Sync> not even glass scales, just a servo is plenty usually
[08:35:30] <archivist> 10 micron accuracy will need some "effort" for a home brew machine
[08:36:21] <barubaru> does it mean that at the next return to neighbor step, for example on a next row, tool will still be around the right point? Or will it get a full error that is described in accuracy?
[08:38:00] <archivist> how well is the machine made, how long is a piece of string
[08:39:58] <archivist> for dreams of accuracy and precision
https://www.youtube.com/watch?v=sFrVdoOhu1Q
[08:40:15] <barubaru> in cd-rom for example the laser lens is controlled separately in addition to a rotation and screw drive, does it make any sense for cnc? To add several layers, one for general movement and one for highs precision
[08:40:52] <archivist> yes/no/depends
[08:41:43] <archivist> usually a cnc needs some brute force, CD player is reacting and following the plastic error at speed
[08:42:05] <barubaru> Wow, that video is awesome!
[08:45:26] <barubaru> I like thst air bearing thingy. Especially with air sring incorporated in it
[08:45:33] <skunkworks> https://www.youtube.com/watch?v=VEE7v3ewd3U
[08:45:45] <skunkworks> I think he may be expecting a bit much..
[08:46:43] <_methods> people still use mach3
[08:46:55] <_methods> ?
[08:47:03] <_methods> forgot the most important part of that
[08:47:09] <_methods> ?!
[08:47:11] <_methods> lol
[08:49:50] <skunkworks> our matsuura running 30in/s^2 sounds a bit clunky. Jerk
[08:50:07] <skunkworks> but it stays within .002 of following error
[08:51:10] <archivist> send him one of your vids :)
[08:51:15] <_methods> lol
[08:52:00] <skunkworks> I didn't try anything higher than 30in/s^2
[08:57:01] <barubaru> One more quesrion. About reprap and such. what kind of cnc can make parts bigger than the biggest part of itself? i guess cub-like cnc can do it by doing big parts at it diagonals and then use it to make sides?
[09:01:36] <archivist> repcrap
[09:03:01] <barubaru> I dont like it too. But i like it idea
[09:04:46] <archivist> to make something larger than the machine, hang it off the side eg
http://www.collection.archivist.info/searchv13.php?searchstr=statfold+milling
[09:06:38] <yasnak> is it friday yet?
[09:07:25] <archivist> a bit later yes
[09:09:13] <gregcnc> friday is only .0082 years away, it's all perspective
[09:11:28] <_methods> lol
[09:21:20] <CaptHindsight> friends don't let friends run Mach
[09:22:20] <TurBoss> lol
[09:24:24] <TurBoss> but if the frieds are the competence let them run mach :D
[09:24:46] <TurBoss> friends*
[09:24:50] <CaptHindsight> http://www.cs-lab.eu/en/artykul-3-Kontakt.html cue the jokes in 3,2,1...
[09:27:13] <gregcnc> gah
[09:27:34] <gregcnc> that system seems like a lot of trouble to setup
[09:27:57] <archivist> looks like a miserable customer
[09:28:18] <gregcnc> there is a guy on yt doing a lathe with CS and Mach, so many issues
[09:29:35] <gregcnc> but I think it's working. learned mach doesn't have spindle at speed
[09:32:57] <CaptHindsight> looks like 2 5-ton cranes
http://x.lnimg.com/photo/poster_1920/6406548ba2eb4538a9f069f39dca0140.jpg
[09:34:41] <archivist> I see two cranes
[09:34:41] <CaptHindsight> ^ cheap shop space
[09:35:03] <archivist> 3 cranes
[09:35:26] <gregcnc> moving in?
[09:35:36] <CaptHindsight> just spotted this one
[09:36:02] <archivist> does it come with the truck and crane
[09:36:07] <gregcnc> http://chicago.craigslist.org/sox/hvo/5700151143.html
[09:36:18] <CaptHindsight> truck not included, the cranes are
[09:37:47] <CaptHindsight> http://x.lnimg.com/photo/poster_1920/ee902c094d054995a0c24568d9aa965e.jpg other crane
[09:38:58] <archivist> nice for stock and machine moving
[09:39:19] <CaptHindsight> on and off trucks
[09:42:33] <CaptHindsight> you get tired of looking after a while
[09:42:57] <CaptHindsight> real estate people are like used car salespeople
[09:43:34] <gregcnc> think they can talk you into any space?
[09:44:59] <CaptHindsight> they actually try
[09:45:39] <CaptHindsight> happy to waste your time
[09:50:00] <gregcnc> big odd lathe
http://images.craigslist.org/00l0l_fFSi163Bf3o_1200x900.jpg
[09:50:06] <archivist> any sales droid likes to waste your time
[09:50:59] <archivist> facing lathe
[09:52:04] <archivist> http://www.seoultrademall.com/co/gtechmachinery/China_Swing_Diameter_2500_3000mm--8877140_8971404.html
[09:52:25] <gregcnc> hhm never heard of them
[09:52:29] <JT-Shop> moved my loctite collection from the old location to a new better location... now I can't remember where that is
[09:52:45] <archivist> down a hole?
[09:53:01] <CaptHindsight> I have some ERxx nuts with the same fate
[09:53:06] <CaptHindsight> in a safe place
[09:53:59] <archivist> I recommend a sort, this can helpfully lose other items for later
[09:55:30] <gregcnc> I hate the fact that I realize I forget things now. it would be easier not to be aware.
[09:56:41] <CaptHindsight> http://milwaukee.craigslist.org/tls/5699806598.html $300ea 45A
[09:58:56] <gregcnc> 3 phase
[10:00:09] <rene-dev_> It says jessie works for simulation only in the getting started manual, but rtpreempt in the buildbot
[10:00:16] <rene-dev_> can I use jessie for machine control?
[10:00:41] <rene-dev_> on i386
[10:00:53] <CaptHindsight> gregcnc: i gots 3 phase
[10:01:08] <CaptHindsight> 45A is good enough for 1/2" steel
[10:01:17] <gregcnc> ah
[10:01:33] <CaptHindsight> http://victortechnologies.com/IM_Uploads/doclib_3615_0-2052.pdf
[10:01:38] <CaptHindsight> parts and specs
[10:03:26] <JT-Shop> was hiding behind a couple bottles of tapmagic
[10:03:52] <gregcnc> I thought plasma cutters were more recent invention. maybe the small portable units are newer
[10:05:28] <CaptHindsight> yeah silicon vs big transformers
[10:06:05] <gregcnc> right
[10:06:15] <CaptHindsight> i tried a small 60A tiny one last week. It cut through 3/4" plate like butter
[10:06:34] <CaptHindsight> $600 from ChinaCo
[10:07:08] <skunkworks> anyone have a source for reel to reel nfc programmers ;) (not GoToTags)
[10:08:57] <CaptHindsight> https://www.youtube.com/watch?v=l7OBF_lcC18 not these but same principal
[10:09:49] <skunkworks> right
[10:10:07] <skunkworks> I found one in canada.. but have not gotten any responce
[10:10:51] <CaptHindsight> I've only worked with the components
[10:11:39] <JT-Shop> how long does red loctite take to cure?
[10:12:54] <Tom_itx> approx 10 min and fully cures in 24 hrs
[10:13:04] <JT-Shop> thanks
[10:13:18] <Tom_itx> http://www.loctiteproducts.com/tds/T_LKR_RED_tds.pdf
[10:13:28] <gregcnc> unless things are really clean and tight, then it cures before the parts are together
[10:14:03] <Erant> Moral of the story, don't clean your shit.
[10:14:12] <CaptHindsight> skunkworks: Labelexpo Americas 2016 sure you'll find one by looking through the guide
[10:14:30] <skunkworks> CaptHindsight, thanks!
[10:14:42] <CaptHindsight> keep the oxygen flowing across it
[10:15:07] <CaptHindsight> it only cures when it's in an oxygen free environment
[10:15:21] <CaptHindsight> anaerobic adhesive
[10:15:26] <gregcnc> I was putting 3mm shafts through 25mm long magnets. sometimes you simply couldn't push fast enough
[10:16:07] <Erant> Does it seep? Can't position and then add loctite?
[10:16:17] <gregcnc> there are wicking grades
[10:16:38] <CaptHindsight> lower viscosity
[10:16:57] * JT-Shop moves on to other parts while the boo boo repair cures
[10:17:05] <CaptHindsight> but with that lower molecular weight and most often lower tensile strength
[10:17:41] <gregcnc> which is why we used red, never mind that occasionally it cracked magnets
[10:22:48] <gregcnc> need to make any tubing?
https://chicago.craigslist.org/nwc/for/5690152020.html this was 15,000 a few months ago so it has to be a good deal now
[10:24:00] <Erant> Cute. MDF though? :/
[10:24:18] <Erant> Not sure if I want to pay $8k for some pieces of MDF.
[10:24:39] <Erant> Though I think I spot some plastic at the end there.
[10:24:56] <CaptHindsight> home brew tubing roller
[10:25:18] <CaptHindsight> that is tooling grade MDF :)
[10:25:49] <Jymmm> I'll buy that!
[10:25:58] <gregcnc> if it has tooling for at least two sizes...
[10:26:00] <Jymmm> For a dollar
[10:26:23] <Jymmm> brb
[10:26:27] <gregcnc> he's selling the time it took to get it working
[10:26:40] <Erant> Sure, sure.
[10:27:05] <Erant> But it's a prototype.
[10:27:25] <CaptHindsight> https://chicago.craigslist.org/nwc/tls/5701015452.html Tapping Machine - $75
[10:29:09] <Erant> I need to put that cheapo Chinese potentially-knock-off encoder on my spindle so I can do some semblance of rigid tapping (probably with a loose quill)
[10:33:28] <archivist> that mdf bender has to be one of the worst adverts ever produced
[10:34:17] <CaptHindsight> Suckers Wanted! MDF bender for sale!
[10:36:03] <archivist> even too lazy to lift his saw off the bench
[10:36:43] <CaptHindsight> splinters, back pain, dust in eye......
[10:36:59] <gregcnc> isn't that the tubing cutter?
[10:37:15] <archivist> might be, but its extra :)
[10:38:11] <CaptHindsight> tubing cutter featuring rotating blade and compound cutting action with finger trigger
[10:38:29] <archivist> it is missing the cnc saw moving in time with the tube for continuous production
[10:38:35] <Tom_itx> and finger removal optional
[10:41:14] <_methods> that comes standard
[10:41:16] <CaptHindsight> a bridgeport not priced at >$3k
https://chicago.craigslist.org/nwc/tls/5695207115.html $1200
[10:46:40] <CaptHindsight> plasma cutters already sold <24hrs
[10:53:51] <CaptHindsight> skunkworks: you could take a look at modding one of these
http://labelmateusa.com/product-category/label-rewinders/reel-to-reel-label-rewinders/
[10:54:14] <yasnak> that kinda day...
https://www.youtube.com/watch?v=KwyRzETLWbM
[10:54:25] <CaptHindsight> we would use them and then add an inkjet
[10:55:31] <CaptHindsight> they also sell just parts, winder, unwinder etc
[11:05:54] <pcw_home> JT-Shop: the intel 2xx Ethernet chip on the H97 is not supported by the (relatively ancient) RTAI kernel on the ISO
[11:07:34] <pcw_home> pretty sure the stock wheezy kernel works as does any reasonably recent Preempt-RT kernel (and Preempt-RT has nearly the same latency as RTAI on the H97)
[11:15:24] <JT-Shop> pcw_home: thanks, I installed stock wheezy, and attempted to install the buildbot deb of uspace but ran into an error and had to leave at that point
[11:16:34] <pcw_home> Ahh maybe stock wheezy doesn't work Either
[11:17:01] <JT-Shop> yea, the net install stock wheezy worked fine
[11:17:36] <JT-Shop> I just ran into an error installing the deb, got the rt preempt installed fine.
[11:18:23] * JT-Shop wanders inside to see what todays surprise is inside when I cut the grapefruit in half for lunch
[11:18:42] <pcw_home> Since I have been using the H97 for Ethernet connected LinuxCNC devices I dont notice since I use the on board
[11:18:43] <pcw_home> for real time just use a USB-Ethernet dongle for internet
[11:23:23] <CaptHindsight> gregcnc:
http://thehill.com/policy/energy-environment/289156-feds-to-deploy-anti-drone-software-near-wildfires
[11:24:42] <CaptHindsight> no surface to air drone missiles
[11:39:02] <gregcnc> yasnak is that a bulova? where are those made?
[11:40:49] * Loetmichel_ seems to have broken his right middle toe btw... ran thru the hall yesterday and hit the door frame with it in full run... now its twice as big as the left one... and black and blue... hurts quite a bit, too :-( (less than yesterday tho :-) )
[11:42:04] <Deejay> how did you do that? the big toe, i could understand, but the middle toe?
[11:43:50] <JT-Shop> pcw_home: this is the result after rebooting to the preempt rt kernel
http://paste.ubuntu.com/21020625/
[11:46:11] <Loetmichel_> Deejay: no idea
[11:46:19] <JT-Shop> I don't know if I messed up by adding the 2.7 recv-key or not
[11:46:32] <Loetmichel_> its usually the pinky that gets damaged. no idea how i hit the middle one this time ;)
[11:50:38] <CaptHindsight> no pics please :)
[11:50:47] <TurBoss> pastebin?
[11:50:58] <TurBoss> xD
[11:51:35] <Loetmichel_> CaptHindsight: nothig to see really
[11:52:26] <Loetmichel_> just a bruiseline across the last digit of said toe.
[11:52:30] <Loetmichel_> not picture worthy
[11:56:43] <pcw_home> JT-Shop: looks like network is working
[12:00:41] <gregcnc> who makes a chuck of brass tubing?
https://www.instagram.com/p/BITy6fmj1Bv/
[12:01:25] <JT-Shop> yea, network worked with the vanilla wheezy, it was a net install CD
[12:01:35] <archivist> A.N I. Diot
[12:03:39] <Loetmichel_> gregcnc: that works well for tube wrenches for small M4 nuts... but a Chuck key???
[12:03:43] <Loetmichel_> m3 nuts
[12:04:05] <Loetmichel_> http://www.cyrom.org/palbum/main.php?g2_itemId=11795&g2_imageViewsIndex=1 <- like this
[12:05:18] <yasnak> gregcnc yes
[12:06:55] <yasnak> they're actually rebranded ugint machines. korean robodrill type. they're not bad and the pricing is amazing. we're based in florida, the headquarters is in clearwater florida
[12:07:08] <yasnak> bought two for an amazing deal
[12:08:09] <gregcnc> OK. seen them advertised.
[12:08:36] <yasnak> definitely check them out. no issues with ours so far
[12:08:41] <yasnak> fast as hell
[12:09:47] <gregcnc> looks every bit as fast as brother or robodrill, i'm not in the market for anything like that, mostly curious
[12:10:21] <yasnak> its fast, thats not even at its top speed
[12:10:49] <yasnak> high speed milling is a bit harsh for newbies, you best have good code
[14:15:46] <barubaru> Few more stupid ideas, feel free to criticize: what if i would make an arm manipulator with 2 bearings long distance apart to avoid side movements and actuator being applied to a middle part of stick rather than try to apply force in joint itself? By making big leverages everywhere i could achieve acceptable accuracy with not so expensive parts
[14:18:40] <barubaru> So that each joint would be really big, rhomb-shaped
[14:46:26] * JT-Shop takes a MyFordBoy break
[14:47:10] <crankylinuxuser> greetings :) I just had a discussion about half hour ago over in #reprap and want to bounce some ideas over here...
[14:48:09] <crankylinuxuser> I had a discussion about using ROS to control 3d printing, along with adding in new sensors and cameras. I see no reason why it wouldnt work as well with any sort of robotic system, LinuxCNC included.
[14:58:57] <_methods> probably don't want to admit you hang out in #reprap
[14:59:47] <crankylinuxuser> Why not?
[15:00:36] <crankylinuxuser> I'm looking at furthering the state of the art in low-cost CNC controls.
[15:04:28] <jdh> the cost is already trivially low for cnc controls
[15:05:14] <_methods> look in trash can, pull out old computer, install linuxcnc
[15:05:20] <_methods> bewm
[15:05:45] <crankylinuxuser> Indeed it is. I wasn't going for just low-cost. I was looking at things like adding extra sensors, camera feedback loops for machine learning
[15:06:50] <_methods> ah going full skynet eh
[15:07:08] <crankylinuxuser> The Glowforge is something similar to that, using all sorts of sensors to facilitate in better operation. The big bad with that is the logic is out of your hands.
[15:07:35] <_methods> where do they come up with these names
[15:07:44] <_methods> blowjobforge
[15:08:17] <_methods> that would actually sell though i'm sure
[15:09:02] <crankylinuxuser> So, I see that I'm expected to have amateur high school conversations in here.. No serious talk, I see?
[15:11:26] <_methods> sorry, i just love all these names these "makers" come up with for their silly machines
[15:13:38] <_methods> looks to me like the "glowforge" is a run of the mill tabletop laser engraver
[15:13:59] <djdelorie> sigh, my cnc machine decided to challenge me with electrical problems today... :-P
[15:14:20] <djdelorie> after challenging me with mechanical problems yesterday...
[15:15:03] <djdelorie> <sarcasm> Why is it so hard to build a reliable machine out of surplus parts and plywood? </sarcasm>
[15:16:30] <roycroft> because you did not procure enough duct tape
[15:16:56] <_methods> that's funny that blowforge they don't even say how many watts the laser is in the tech specs
[15:17:09] <djdelorie> amusingly enough, the hacky plywood parts weren't the problem - the problems where the few steel parts
[15:17:10] <roycroft> it's ONE MILLION LASERWATTS
[15:17:13] <roycroft> and it will put your eye out
[15:17:19] <_methods> i bet
[15:17:26] <_methods> especially with the reprap crowd
[15:17:36] <_methods> lol
[15:17:36] <Tom_itx> sounds like another maker project to me
[15:17:37] <djdelorie> one million watts will put out your eye, part of your brain, the back of your skull, the wall behind you, ...
[15:17:42] <_methods> $4k for a 40w laser
[15:17:47] <_methods> that's hilarious
[15:17:59] <_methods> and they got $27,000,000 in preorders
[15:18:06] <djdelorie> $4k for a hellishly complex bit of software
[15:18:10] * Tom_itx hi'fives _methods for running him off
[15:18:11] <_methods> a fool and his money are soon parted
[15:18:30] <_methods> heheh
[15:18:53] <djdelorie> wait... you're proud of scaring someone away from linuxcnc? sigh...
[15:19:31] <_methods> greetings :) I just had a discussion about half hour ago over in #reprap and want to bounce some ideas over here...
[15:19:33] <_methods> yes
[15:19:46] <_methods> whenever i see that you can guess what's coming next
[15:19:50] <_methods> sillyness
[15:20:17] <JT-Shop> we sure get some nut cases in here
[15:20:23] <_methods> i jinxed the room this morning by saying how nice it's been in here
[15:20:33] <Tom_itx> djdelorie i don't think he was persuing linuxcnc
[15:20:49] <djdelorie> "I see no reason why it wouldnt work as well with any sort of robotic system, LinuxCNC included."
[15:21:19] <Tom_itx> linuxcnc gets sucked into all sorts of conversations even mach....
[15:21:25] <djdelorie> I've contemplated building a 3D printer controlled by LinuxCNC, but comparing the two channels, I bet I'd get a more pleasant reception over there.
[15:21:41] <Tom_itx> no.. i've been there
[15:21:53] <roycroft> there are malcontents everywhere
[15:22:00] <roycroft> that's the nature of teh internet relay chat
[15:22:02] <djdelorie> meanwhile, my servo drivers seem borked, enough to blow the fuse in the main power supply. I'm bummed.
[15:22:33] <Tom_itx> and most of them are trying to sell you something
[15:22:34] <djdelorie> and despite clearpath saying "cheaper than comparable steppers" they're not
[15:23:10] <djdelorie> at least the #reprap folks don't pick on me for owning a cnc machine
[15:23:42] <Tom_itx> i got chastised for logging their channel in no uncertain terms
[15:23:52] <_methods> why would you log that madness
[15:23:53] <roycroft> there's this thing called /ignore, djdelorie
[15:24:00] <Tom_itx> they were afraid what they said would get back to their boss's
[15:24:01] <roycroft> if you're somewhat thin-skinned you might want to learn about it :)
[15:24:14] <djdelorie> logging of any irc channel, where the logs are public, is generally frowned upon
[15:24:30] <djdelorie> roycroft, I have very thick skin. I'm still here, aren't I? ;-)
[15:24:35] * roycroft feels suddenly compelled to frown upon the entire irc
[15:25:05] <Tom_itx> this channel is quite mild compared to some
[15:25:08] <_methods> indeed
[15:25:09] <roycroft> assuming that everything you say is not logged and published is perhaps not the most prudent way of thinking
[15:25:42] <roycroft> irc is like email, without needing russian hackers to help you out
[15:26:23] <roycroft> consider the logging and publishing a free backup service, in case you ever lose your private logs or forget what you or someone else said
[15:27:37] <djdelorie> I assume everything is recorded somewhere, but consider how you'd react if you found out someone in person had an audio recorder you didn't know about, and had been publishing every conversation online...
[15:27:57] <roycroft> but i know that irc is generally logged
[15:28:01] <_methods> ^^
[15:28:13] <_methods> by multiple people usually
[15:28:16] <gregcnc> when you publish it online yourself in the first place?
[15:28:22] <roycroft> so that's really a false equivalency
[15:28:50] <_methods> there are at least 2 public log bots for this channel i know of
[15:29:16] <roycroft> i'm not stating a position in favor of or opposed to the logging
[15:29:17] <_methods> toms and psha
[15:29:20] <Tom_itx> well at least we're talking about channel logging now instead of running ppl outta here
[15:29:21] <Opar> true
[15:29:24] <roycroft> i'm just pointing out that it happens
[15:29:38] <roycroft> and anyone who has been on irc for more than about 17 seconds should know that
[15:29:59] <roycroft> if not, i'm glad to enlighten folks
[15:30:11] <Opar> I more than agree with you, roycroft.
[15:30:28] <renesis> its not always true, but it should always be assumed that irc is logged and published
[15:30:47] <_methods> that would be the safe assumption
[15:30:51] <roycroft> correct
[15:30:57] <Tom_itx> or just take care in what you say to begin with
[15:30:59] <renesis> you can hide the source of the text with some effort, but you cant hide the text itself
[15:31:35] <_methods> or just fire up a vps and join and say whatever you want
[15:31:37] <_methods> lol
[15:32:50] <_methods> i wonder if miss cleo knew today was the day
[15:32:55] <roycroft> but don't say anything you don't want your momma to know you said
[15:33:00] <Tom_itx> google harvests way more than just what you say on irc and they seem to be rather accepted for the most part
[15:33:09] * roycroft shuns google
[15:33:13] <Tom_itx> they dont' ask or tell either
[15:33:19] <roycroft> no gmail
[15:33:20] <renesis> google is pretty convenient!
[15:33:24] <roycroft> duckduckgo is my search engine
[15:33:25] <_methods> don't say google near roycroft
[15:33:34] <Tom_itx> i know
[15:33:36] <roycroft> you may say google all you want
[15:33:41] <renesis> duckduckgo is my homepage but i never use it =\
[15:33:44] <roycroft> it doesn't bother me
[15:33:52] <Tom_itx> he probably owns an iphone instead of android too
[15:33:58] <roycroft> and i'm not trying to force my preferences on anyone
[15:34:06] <Tom_itx> i know you're not
[15:34:07] <roycroft> but i don't mind making them known
[15:34:11] <_methods> hehe
[15:34:17] <renesis> i have to use iphone for work, god its so fucking annoying
[15:34:25] <roycroft> i do have an iphone
[15:34:27] <roycroft> and an ipad
[15:34:30] <roycroft> and multiple ipods
[15:34:32] <roycroft> and macs
[15:34:34] <_methods> blech
[15:34:36] <renesis> also i think i bent it in my pocket
[15:34:47] <roycroft> that stuff works for me
[15:35:07] <Tom_itx> who won the battle with apple and that privacy thing?
[15:35:08] <roycroft> i don't have an icloud account though
[15:35:12] <Tom_itx> i didn't follow that
[15:35:26] <roycroft> i'm not sure which one you're talking about
[15:35:28] <roycroft> there are so many :)
[15:35:32] <roycroft> with all vendors
[15:35:51] <roycroft> i don't trust any of them
[15:36:00] <roycroft> but i need to use products from some of them
[15:36:09] <roycroft> so i try to mitigate my risk and give them as little information as possible
[15:36:10] <renesis> there was the fbi think over the san bernadino shooting, apple didnt back down but fbi eventually got in on their own
[15:36:23] <renesis> so kind of a wash, in terms of PR for apple
[15:36:24] <roycroft> yeah, there was a simple way for the fbit to get in
[15:36:26] <roycroft> fbi
[15:36:32] <roycroft> but they wanted to force the issue in court
[15:37:02] <roycroft> in the end, the fbi decided it was taking too long so they used the simple method and dropped the legal pursuit
[15:37:04] <renesis> apple was just trying to set a precedent, from what i understand theyve already given up user information in the past
[15:37:08] <roycroft> they'll try again in the future
[15:37:47] <roycroft> the fingerprint ruling was interesting
[15:38:13] <djdelorie> ok, how can you compare a $400 "stepper killer" to a $40 stepper with a $20 driver? :-P
[15:38:23] <roycroft> the court (i forget which one) determined that requiring one to unlock a phone with a fingerprint is not self-incrimination
[15:38:33] <roycroft> but requiring one to disclose a pin number is
[15:38:48] <roycroft> iphones require the pin after a few hours of inactivity
[15:38:58] <renesis> prob gonna result in a bunch of broken fingers
[15:39:05] <roycroft> so when law enforcement got the ruling and went back and rquired the fingerprint it did not work
[15:44:13] <FloppyDisk> \\
[15:44:22] <FloppyDisk> \
[15:44:24] <FloppyDisk> 1
[15:44:39] <_methods> kill that spider
[16:19:09] <SpeedEvil> stop that pigeon
[16:42:29] <SpeedEvil> http://imgur.com/gallery/aItw3Jn - neat
[16:42:42] <SpeedEvil> high pressure linear friction welding
[16:42:44] <SpeedEvil> of Ti
[17:04:49] <Deejay> gn8
[17:08:46] <CaptHindsight> I'm going to start up a 3D printing body part co....
[17:09:04] <CaptHindsight> going to call it "Finger Prints"
[17:12:40] <CaptHindsight> http://machinedesign.com/packaging/keeping-it-simple-rolling-ring-drives
[17:14:08] <CaptHindsight> http://machinedesign.com/mechanical-drives/basics-rolling-ring-linear-motion
[17:27:35] * JT-Shop sees if OneCNC will run a slitting saw right
[17:29:26] <JT-Shop> anyone have any idea for speed and feed for a 36 tooth 4" slitting saw?
[17:36:15] <djdelorie> JT-Shop, I don't but this might have some insight:
https://www.youtube.com/watch?v=PWBV04JaPog
[17:36:43] <JT-Shop> ouch can't watch a video except during free time
[17:43:42] <_methods> blade thickness?
[17:43:56] <_methods> hss slitting saw?
[17:44:13] <JT-Shop> 0.0625"
[17:44:20] <JT-Shop> yes hss
[17:44:34] <JT-Shop> material is 1/2 thick mild steel
[17:45:46] <_methods> about 80rpm
[17:45:51] <_methods> that would be at 80sfm
[17:46:10] <JT-Shop> cut is 1.250 deep
[17:46:23] <JT-Shop> http://www.practicalmachinist.com/vb/cnc-machining/speed-feed-round-saw-cutter-265261/
[17:46:56] <JT-Shop> what do you think of HuFlungDung's comment
[17:47:07] <_methods> i'd probably start out at about .0005" per tooth to be safe
[17:47:49] <JT-Shop> at 400SFM that would be 382RPM and 6.9 IPM
[17:48:22] <_methods> well i personally usually play it safe with slitting saws
[17:48:28] <_methods> until i see how it's acting
[17:48:38] <_methods> especially if i don't have an extra saw
[17:49:15] <_methods> if i have extra saws then i get brave
[17:49:20] <JT-Shop> yea only one saw
[17:50:57] <_methods> in that case i start on the safe side
[17:52:10] <_methods> how many parts?
[17:53:24] <_methods> http://www.practicalmachinist.com/vb/cnc-machining/speed-feed-round-saw-cutter-265261/
[17:53:36] <_methods> alloy mcgraws post
[17:53:55] <_methods> he was doing about the same cut as you
[17:54:03] <_methods> 1" doc 4" saw 36 tooth
[17:54:08] <_methods> 350rpm
[17:54:21] <_methods> feed at 4.5ipm
[17:55:22] <_methods> not sure what material he was doing though at 350rpm seems like pretty high sfm
[17:55:33] <_methods> 320sfm
[17:55:46] <JT-Shop> yea I'll start at 100SFM
[17:55:52] <_methods> yeah that's where i'd start
[17:55:56] <_methods> especially with hss
[17:56:04] <_methods> i was being very conservative at 80sfm
[17:56:28] <_methods> i'm always a bit gunshy of tapping and slitting
[17:56:46] <_methods> like to err on the side of caution until i see how the material is acting
[18:12:22] <Opar> hi
[19:06:15] <TurBoss> Hi
[19:08:08] <Opar> how are you
[19:08:28] <TurBoss> fine
[19:08:35] <TurBoss> thx1
[19:09:06] <TurBoss> i'm tryint to understand how to home a gantry with JointAxes :D
[19:09:06] <Opar> I need to make all of these 51-53cm alu extrusions 50cm
[19:09:17] <Opar> Ah, yeah, thats tricky
[19:09:30] <CaptHindsight> you need the shrinker
[19:09:54] <Opar> yeah
[19:10:03] <Opar> I have an extrusion stretcher
[19:10:16] <Opar> Unfortunately it doesn't work in the other direction :/
[19:10:22] <CaptHindsight> stretching is usually the harder problem
[19:10:24] <Opar> Its worm gear driven, so going backwards just doesn't work
[19:11:15] <JT-Shop> TurBoss: what do you need to know?
[19:12:02] <TurBoss> how to move the motors automaticaly to find the home switch
[19:12:11] <TurBoss> :)
[19:12:28] <TurBoss> to square the gantry
[19:13:21] <JT-Shop> what happens is both motors move at the same speed when one is homed it stops and waits for the second
[19:13:50] <JT-Shop> if your home switches are not exactly in position adjust your home offset to end up square
[19:14:35] <TurBoss> if i click home they just set home at their actual position
[19:14:52] <TurBoss> oh no home shitches configured
[19:15:08] <Opar> ah
[19:15:11] <JT-Shop> you need home switches
[19:15:12] <Opar> I've got a 100 ton press
[19:15:16] <Opar> I wonder if that'll shrink em a bit
[19:15:26] <JT-Shop> or push the gantry to hard stops then home the axis
[19:15:30] <TurBoss> ok thx JT-Shop
[19:15:35] <TurBoss> :DD
[19:15:38] <JT-Shop> https://www.youtube.com/watch?v=wgNLd6A34Vo
[19:15:47] <JT-Shop> for switches watch the video
[19:16:23] <JT-Shop> https://www.youtube.com/user/Gnipsel/videos
[19:16:23] <TurBoss> I saw it this morning
[19:16:33] <JT-Shop> cool
[19:16:42] <TurBoss> thx
[19:16:55] <TurBoss> will try to add 2 inputs to the breakout board
[19:30:01] <MacGalempsy> hello
[19:30:34] <MacGalempsy> finally got the spindle speed control working with linuxcnc
[19:30:38] <MacGalempsy> pretty exciting
[19:36:48] <TurBoss> gn8
[19:50:40] <jdh> what spindle?
[20:00:06] <MacGalempsy> the main spindle
[20:00:20] <MacGalempsy> it is a large DC servo
[20:00:41] <MacGalempsy> it is amazing how one line of HALcode can make or break it!
[20:06:35] <malcom2073> HAL is finicky liek that
[20:06:37] <malcom2073> like*
[20:06:39] <malcom2073> So what did it turn out to be?
[22:26:16] <SpeedEvil> 'Possible data breach: please reset your Shapeways password
[22:27:22] <enleth> is the "Test / Tune Axis" dialog in pncconf supposed to spew python tracebacks with KeyErrors when being used?
[22:27:26] <dioz> so what are goot stepper motors?
[22:33:12] <enleth> also, what's the preferred way of expressing the fact that my encoder technically has 125 "lines" per revolution but the interpolator expands that times 5?
[22:49:49] <SpeedEvil> 600 count
[22:50:47] <enleth> 625 actually
[22:58:03] <barubaru> About encoders: is there such type that has 100 holes and 99 sensors to achieve 9900 steps per revolution?
[22:58:26] <barubaru> I mean the idea, not exact numbers
[23:01:10] <enleth> OK, I can officially say that I got the bridgeport servos and encoders to work with Mesa
[23:01:20] <enleth> with the help of some used EXE 602s
[23:09:31] <dioz> is it better to have motors on your rails or a long X pulley run with a single motor?
[23:10:28] <dioz> or i guess you could do a 3rd rail under the table with gears and a single motor
