Back
[00:34:52] <CaptHindsight> tjtr33: was really looking for a Arduino "plug in" module with diff pressure, nobody seems to make one, so it's another thing I have to build vs buy
[00:35:37] <tjtr33> the guys notes looked simple to build
[00:36:43] <CaptHindsight> the norm in the channel should be assume that anything may be built, it just that you might want to buy vs build occasionally to save some time :)
[00:37:46] <CaptHindsight> the barometric pressure modules don't seem to be linear from + to - pressure
[00:40:18] <CaptHindsight> I could slap a barbed connector over the orifice but I don't want to waste the time finding out it can't handle anything under 300 hPa
[00:42:34] <CaptHindsight> http://www.ebay.com/itm/New-High-I2C-BMP085-Barometric-Digital-Pressure-Sensor-Module-Board-For-Arduino-/251301750166?pt=LH_DefaultDomain_0&hash=item3a82c06596
[03:35:30] <RyanS> Are all the materials expensive for epoxy granite? Wouldn't it be cheaper to have iron castings made at a foundry?
[03:45:34] <Loetmichel> mornin
[04:20:21] <DJ9DJ> moin
[04:51:18] <RyanS> wow, that's a lot of stuffing around to do manual machining, rotary table
[07:41:55] <muzaffar_> Hello
[07:41:57] <muzaffar_> guys
[07:42:28] <muzaffar_> Any one can tell me how parallel port xstep signal get input?
[07:47:44] <jdh_> I have no idea what you are asking.
[07:59:20] <muzaffar_> I mean for stepper motor controll with parallel port we attach xstep signal to parallel port output pin but which pin is attach on xstep input.
[07:59:54] <muzaffar_> as in this fileconfigs/stepper/standard_pinout.hal
[08:00:58] <muzaffar_> jdh_ are you there?
[08:01:11] <jdh_> I am.
[08:03:12] <spacka> xstep input?
[08:03:41] <jdh_> like the stepgen for that axis?
[08:03:53] <muzaffar_> yes
[08:04:32] <muzaffar_> in all configuration there is no valid input for step signal
[08:04:41] <muzaffar_> and some where itis stepgen
[08:05:53] <jdh_> net xstep <= stepgen.0.step
[08:06:54] <jdh_> is that what you mean, or do you have some other issue?
[08:07:32] <muzaffar_> in hal/drivers/hal_parport.c
[08:07:34] <muzaffar_> file
[08:07:34] <skunkworks> stupid question - how does G76 know how much to step down each time. I know R1.0 is constant depth - R2.0 is constant area...
[08:07:46] <muzaffar_> write_port(void *arg, long period)
[08:07:54] <muzaffar_> and in this function
[08:08:17] <muzaffar_> port->data_out[b]
[08:08:24] <muzaffar_> how this port->data_out[b] is updated?
[08:08:26] <muzaffar_> i mean
[08:10:46] <muzaffar_> in other words who pass arg to write_port funtion
[08:10:50] <muzaffar_> ?
[08:13:05] <skunkworks> never mind.. figured it out.
[08:13:13] <jdh> what's the answer?
[08:13:26] <jdh> total distance/ num cuts?
[08:13:57] <tjtr33> muzaffar_, look in core_stepper.hal "# connect signals to step pulse generator outputs net Xstep <= stepgen.0.step"
[08:14:15] <muzaffar_> yes
[08:14:40] <muzaffar_> is it always configured
[08:14:51] <muzaffar_> for every stepper case
[08:15:12] <muzaffar_> mean load
[08:17:06] <muzaffar_> yes i think
[08:21:22] <skunkworks> heh jmk - the voice of reason...
[08:21:47] <skunkworks> jdh,
[08:22:44] <skunkworks> looks like K/J + remainder. (unless R is used...)
[08:25:17] <skunkworks> (constant depth vs constant volume...)
[08:31:51] <spacka> hmm
[08:31:59] <spacka> i definitely need to read up on that stuff
[09:12:46] <PetefromTn> Good Morning everyone.
[10:55:49] <PetefromTn> http://www.youtube.com/watch?v=plW5b1k4ywU
[10:55:54] <PetefromTn> BEAUTIFUL...
[11:00:50] <ssi> holy shit that thing's fast
[11:10:07] <PetefromTn> yeeah buddy. Especially the toolchange and the rotary unit.
[11:10:14] <ssi> yes the toolchanger is hawt
[11:10:37] <PetefromTn> Makes my machine look like its going backwards LOL
[11:11:20] <Connor> someone posted this yesterday..
https://www.youtube.com/watch?NR=1&feature=fvwp&v=NDzUiZsbQtw
[11:11:29] <PetefromTn> I am amazed that the inertia of that millhead and table does not tear the whole machine apart/
[11:11:50] <ssi> oooo delta vmc
[11:14:07] <PetefromTn> Yeah I have seen that before. Unfreakin'believable.
[11:15:13] <PetefromTn> The only thing that I wonder about that kind of machine is how long do all of those different joints last under that heavy load. I mean each and every movement there is about twenty different pieces that are all moving in some fashion.
[11:15:49] <Connor> The people who can afford that machine probably don't care. :)
[11:16:04] <ssi> PetefromTn: ever seen a helicopter?: P
[11:16:43] <cradek> this machine has no sliding joints
[11:16:51] <ssi> there are these magical people called "engineers"... they're like a special sort of wizard that conjures up ways to put machines together so that they don't tear themselves to pieces under normal conditions
[11:16:52] <cradek> although I guess that's true for a linear rail + ballscrew machine too
[11:18:43] <PetefromTn> yeah it may have no sliding joints but it has a TON of different rotary joints and universal type joints that all must work perfectly every time and unfortunately the accuracy of the machine depends on all of them.
[11:20:29] <PetefromTn> I mean just watch the video and pay attention to the millead itself where the individual movemnt axles/screws whateveryoucallem attach to the head carriage. Even the slightest movement and everything moves.
[11:21:10] <PetefromTn> Don't get me wrong I would LOVE to have one but it seems like some of the fixed column or dual column universal mills out now might be more reliable.
[11:28:37] <AR_> ok finally done wiring my new system
[11:28:38] <AR_> http://i.imgur.com/OusVLkI.jpg
[11:28:39] <AR_> lol
[11:32:04] <jdh> arduinio with a serial/usb thing?
[11:32:59] <PetefromTn> https://www.youtube.com/watch?feature=endscreen&v=B2egFi3N3wE&NR=1
[11:33:14] <jdh> nope, somethign other than an arduino
[11:33:32] <PetefromTn> I wonder if you could make something like this to be put on a traditional milling machine to allow six axis movement.
[11:34:47] <AR_> jdh, it's a custom board
[11:34:50] <AR_> i made
[11:34:59] <AR_> based on tinyG motion controller
[11:35:41] <andypugh> I want one with a Zed axis, not a Zee axis :-)
[11:36:59] <AR_> holy shit PetefromTn
[11:37:10] <AR_> that's nice
[11:39:55] <PetefromTn> Yeah man it's pretty interesting.
[11:42:12] <Connor> looks a bit slow..
[11:44:42] <jdh> me?
[11:54:18] <PetefromTn> no me...
[12:01:16] <jdh> ok.
[12:01:24] <Connor> the hexapod
[12:01:43] <jdh> nah, I think you meant Pete.
[12:02:19] <jdh> it's going to rain all w/e, again.
[12:02:54] <Connor> I need to check the weather in DC. Weekend trip.
[12:03:19] <jdh> DC will be full of hot air, as always.
[12:03:28] <Connor> well, yea.
[12:03:38] <jdh> and acrimony, intolerance, etc.
[12:07:20] <Connor> PetefromTn: how's those kitchen cabinet plans coming ?
[12:09:04] <PetefromTn> Plans are done, met with customer yesterday to finalize and I SHOULD be getting a depost tonight. I already have most of the cutlisting done and materials sourced. Once I get the deposit I will be picking up the materials and getting started. Decided I am gonna order all the cabinet doors this time to save time.
[12:09:28] <Connor> That's cool.
[12:10:09] <PetefromTn> Should be a beautiful clean Kitchen when I am done with it.
[12:10:19] <jthornton> can you create a pdf from a text file easy in Ubuntu?
[12:10:40] <Connor> jthornton: should be able to "print it" to a pdf filter.
[12:10:53] <Connor> yea. print to file.
[12:11:00] <Connor> output format PDF
[12:11:14] <jthornton> got it thanks
[12:15:07] <IchGuckLive> hi all B)
[12:40:21] <Heinz_60> hi @ll
[12:40:41] <IchGuckLive> B)
[13:10:29] <jdh> do you only do face milling with indexable end mills? Can you do slotting if you approach from outside the material?
[13:11:10] <PetefromTn> depends on the endmill,,
[13:11:32] <jdh> http://www.ebay.com/itm/231010072851
[13:11:35] <jdh> somethign like that
[13:12:33] <PetefromTn> No you can basically treat those like any other endmill that is not centercutting....
[13:13:21] <jdh> afaik, I don't own any end mills that aren't center cutting.
[13:14:06] <PetefromTn> For what its worth that is a great deal depending on how high it goes
[13:14:32] <jdh> more than I want to spend for something that (relatively) big
[13:56:19] <PetefromTn> Dunno if you guys have ever seen this website but MAN does it kick ass... Just found it yesterday. downloaded a couple files already and it is good so far.
[13:56:23] <PetefromTn> http://grabcad.com/library
[14:02:21] <Tom_itx> held together with door springs :)
[14:49:15] <skunkworks> http://electronicsam.com/images/emco/EMCOThreading.JPG
[14:55:18] <cradek> so do you have a bunch of these that'll just work when you plug them into a parallel port?
[14:56:50] <skunkworks> cradek, yes. 5 of them.. (though one is missing the steppers...)
[14:57:05] <cradek> very cool
[14:57:20] <skunkworks> yes - linuxcnc is awesome :)
[14:57:46] <skunkworks> hack the interface board? we don't need to hack no stinkin interface board...
[14:58:54] <skunkworks> dad is thinking about taking the steppers off of the cnc one (that has it's own control that doesn't seem to work) and put them on the 'pc' version
[14:59:39] <skunkworks> Then do an actual conversion on that one. (better steppers or servos) - that one has a dc motor for the spindle also.
[15:02:16] <skunkworks> I hope others try it.
[16:06:04] <cradek> what a strange email:
http://pastebin.com/raw.php?i=FrdFfwTi
[16:06:42] <JT-Shop> lol
[16:07:04] <JT-Shop> that's a new one for me
[16:07:09] <skunkworks> wow - something was lost in translation...
[16:09:03] <Jymmm> cradek: [Begin canned spam message ($insert_relative_content_from_website_to_thwarte_anti-spam_filter) End_canned_spam_message]
[16:16:11] <Jymmm> cradek:
https://www.google.com/search?q=scottwarrick2%40gmail.com
[16:18:34] <cradek> ha
[16:20:00] <DJ9DJ> gn8
[16:20:04] <Jymmm> gn9
[16:21:17] <dave_e> HI I've just upgraded to 2.5.2
[16:22:41] <dave_e> but getting following errors using my original files from 2.?.?. I've edited the normal stuff emc > linuxcnc
[16:23:37] <dave_e> It has been suggested that I need new BIT files (5i20) and I've downloaded the .8 version as a .deb
[16:24:39] <dave_e> So far I've been unsuccessful in loading them into /lib ..... so I can symlink to them.
[16:26:04] <dave_e> dpkg -i fails with a nice message about being unable to split files. I'm at my desktop not in the shop and so I can't go verbatim. :-(
[16:26:23] <dave_e> ideas ... recommendations ....
[16:33:44] <JT-Shop> did you follow the upgrade path from 2.? to 2.5 as outlined on the wiki?
[16:34:05] * JT-Shop just had that thought before he leaves
[16:34:43] <dave_e> printed if off and followed it step by step
[16:36:53] <dave_e> step by step is no guarantee for me.... I can mess up any set of directions unless they are in a script; then it is difficult. ;-)
[16:37:19] <dave_e> I'm going to have another whirl at installing those BIT files
[17:02:57] <dave_e> no luck so far .... gotta go .... too many things to do before tomorrow morning.
[17:03:37] <dave_e> btw all my .bit files are 2010
[17:32:14] <JT-Shop> aww he left
[17:32:59] <tjb1> booo
[17:45:21] * JT-Shop hugs LinuxCNC
[17:45:43] * Tom_itx calls for a group hug
[17:46:01] <Tom_itx> shouldn't he be root when copying those bit files?
[17:52:16] <Tom_itx> JT-Shop, haven't heard much about your splitter lately...
[17:56:37] <JT-Shop> splitter is waiting for me to finish it
[17:57:10] <JT-Shop> I scored a huge white oak tree the other day for firewood
[17:57:28] <Tom_itx> nice
[17:58:21] <JT-Shop> http://imagebin.org/264225
[17:59:03] <JT-Shop> 3 rounds short of one limb
http://imagebin.org/264226
[17:59:20] <Tom_itx> the bottom rotten?
[17:59:53] <JT-Shop> they usually rot from the center, this one was blown down last winter in a storm
[17:59:55] <Tom_itx> i see the need to finish a splitter now
[18:01:23] <JT-Shop> aye
[18:04:06] <andypugh> Looks too good to burn.
[18:08:23] <JT-Shop> anything solid in the center and 8'6" can be sold to flooring manufactures but I don't think any of the trunk is good and they won't take limbs
[18:16:16] <andypugh> Any bits big enough to make one of these?
http://markhaglundsfurniturerepair.blogspot.co.uk/2008/06/post-20-rivett-lathe-608-oak-cabinet.html
[18:17:34] <JT-Shop> you could make that from a branch on this tree
[18:18:26] <Tom_itx> with leftover to stoke the fire with while you build it?
[18:18:52] <JT-Shop> I bet there is 3-4 years of firewood in that tree
[18:19:15] <Tom_itx> is that on your land?
[18:19:43] <JT-Shop> a riding buddy
[18:21:53] <andypugh> Anyway, sleep time.
[18:23:29] <JT-Shop> good night
[18:24:43] <Tom_itx> nice cabinet though
[18:35:10] * JT-Shop wonders what it would take to get G84 to work
[18:36:25] <JT-Shop> it don't pay to stand by the mill in shorts and sandles when roughing
[18:37:25] <Tom_itx> what tapping cycle is currently used?
[18:37:39] <JT-Shop> G33.1 but it is not a cycle
[18:39:23] <Tom_itx> Fadal implements it. just looked at my cheat sheet
[18:39:50] <Tom_itx> also a G84.2 to acomodate it
[18:40:10] <Tom_itx> 'prepare for rigid tapping cycle'
[18:40:47] <Tom_itx> 2 formats
[18:41:16] <Tom_itx> 1: Q=Thread lead, F=RPM
[18:41:41] <Tom_itx> 2: No Q, S=RPM, F= Feed
[18:42:04] <Tom_itx> odd they would swap the feed like that
[18:43:06] <Tom_itx> i wonder what determines the depth
[19:25:09] <skunkworks> https://www.youtube.com/watch?v=ERMizV-yy8U
[20:05:52] <tjtr33> the mail list mentioned a BP modified with a slide "mounted between the head and where it attaches to the nodding joint".
[20:05:55] <tjtr33> hehe took a while to visualize the A joint on the ram ( where the spindle axis pivots around X )
[20:40:53] <spacka> tjtr33: what machine?
[20:58:26] <tjtr33> spacka a Bridgport manual mill, the quill/spindle can be angled about X & Y at a knuckle at end of the 'ram'
[20:58:53] <spacka> ah, yeah
[21:18:43] <Tecan> anyone here like turbocad delux ?
[21:19:29] <jdh> not me.
[21:20:33] <PetefromTn> Woo HOO!!
[21:20:58] <Tecan> what about creo ?
[21:24:29] <jdh> never heard of it.
[21:25:22] <jdh> I just tried turbocad again. Still don't like it.
[21:26:05] <PetefromTn> whats the difference between turbocad and draftsight?
[21:26:20] <jdh> I can use DraftSight and it's free.
[21:26:31] <jdh> or "free" depending on you point of view.
[21:26:42] <PetefromTn> exactly my point
[21:27:05] <jdh> what point
[21:27:43] <PetefromTn> seriously?
[21:28:45] <jdh> I bought TurboCad 16
[21:31:10] <Tecan> the delux has 3d tho
[21:31:24] <Tecan> 16 probably does too but
[21:31:46] <Tecan> creo is suposed to be better than sketchbook
[21:32:31] <jdh> this is TurboCAD16 Deluxe 2D/3D
[21:33:04] <skunkworks> emco lathe running 100% with linuxcnc.. (original encoder, steppers and electronics..)
[21:33:18] <skunkworks> https://www.youtube.com/watch?v=ERMizV-yy8U
[21:33:48] <Tecan> jdh you use it but dont like it then ?
[21:34:00] <jdh> No, I own it and don't like it and don't use it.
[21:34:06] <Tecan> :)
[21:34:08] <Tecan> autocad ?
[21:34:17] <jdh> mainly draftsight
[21:34:33] <jdh> it starts up in a few seconds. AutoCAD takes 5 minutes
[21:38:29] <PetefromTn> I really like Draftsight having used Autocad as well as Turbocad quite a bit.
[21:38:48] <t12> anyone uh
[21:38:53] <PetefromTn> skunkworks: Hey man that little lathe looks cool.
[21:38:56] <jdh> I can't remember how to draw a line in turbocad. Or copy a line.
[21:38:57] <t12> ever machine fine features in .001" stainless shimstock?
[21:39:04] <t12> cutout style
[21:39:26] <jdh> tape it down and cut through the backing?
[21:39:37] <PetefromTn> Yeah I was gonna suggest carpet tape...
[21:39:39] <t12> thats what i'm thinking
[21:39:47] <Tom_itx> skunkworks is that one from the truckload?
[21:39:57] <PetefromTn> truckload??
[21:40:01] <t12> need to cut like .008 x .020 slots
[21:40:18] <t12> orig part was done with some litho process
[21:40:23] <jdh> make a punch?
[21:40:58] <t12> could do that but tricky to make that too
[21:41:02] <t12> its like um
[21:41:16] <t12> its a belt with patterned holes, that a tiny multileveled gear meshes with
[21:41:36] <jdh> music box?
[21:41:42] <PetefromTn> Might try to get someone to laser cut it for you...
[21:41:53] <t12> the most insane device possible
[21:42:03] <t12> its an atuomatic electrode inserter for monkey brains
[21:42:17] <PetefromTn> get the hell outta here...
[21:42:28] <t12> the belt positions tiny electrodes that some conmputer vision thing drives
[21:42:33] <PetefromTn> you gotta be kiddin right..
[21:42:34] <skunkworks> PetefromTn: thanks
[21:42:34] <t12> then it picks them up and jams them in a brain
[21:42:38] <skunkworks> Tom_itx: yes
[21:42:43] <t12> on the end of a actuator arm
[21:42:52] <t12> then navigated by reference MRI stuff to not mess up veins etc
[21:43:01] <t12> its the most insane project i've heard of
[21:43:16] <jdh> use a hexapod?
[21:43:17] <PetefromTn> skunkworks: You got a truckload of these things?
[21:43:17] <t12> so a microscale cnc brain sewing machine basicly
[21:43:42] <t12> i will try the tape method
[21:43:54] <t12> i was going for milling a slot in a block of something, setting the band in the block
[21:43:57] <t12> then epoxying it in
[21:43:58] <t12> then milling
[21:44:04] <t12> then chemically or thermally killing the epoxy
[21:44:13] <skunkworks> PetefromTn: truckloadish
http://www.electronicsam.com/images/emco/emco.JPG
[21:44:36] <PetefromTn> WOW.
[21:44:37] <t12> its hard for me to tell if the project is even accomplishable or just academic longshots
[21:44:43] <PetefromTn> Those babies are cute...
[21:44:45] <jdh> good excuse to buy a laser.
[21:44:53] <jdh> Skunk: send me one.
[21:45:00] <t12> yeah
[21:45:01] <PetefromTn> what are you gonna do with all those things?
[21:45:04] <Tom_itx> skunkworks, nice to see they're working good
[21:45:07] <PetefromTn> yeah me too LOL
[21:45:09] <t12> i guess someone bought a laser engraver around here
[21:45:11] <t12> maybe it can do it
[21:45:40] <PetefromTn> .001 thick....possibly.
[21:45:41] <jdh> or, sell me one.
[21:45:57] <skunkworks> Tom_itx: yes - looks like I can run them with linuxcnc without doing the 'mach hack mod' to the emco interface
[21:45:59] <PetefromTn> I wouldn't mind having one too...
[21:46:06] <Tom_itx> nice
[21:46:35] <skunkworks> and they perform pretty well- better than the original control (around 30ipm) they seem to do 40-45ipm
[21:47:32] <Tom_itx> mechanical shape pretty good?
[21:47:51] <skunkworks> they look very lightly used
[21:47:52] <CaptHindsight> tjtr33: have any favorite brakes for linear motors used for Z?
[21:48:10] <skunkworks> on looks to still have cosmolene on it
[21:52:37] <jdh> are you going to keep them all?
[21:55:33] <Tom_itx> never know when you may need some spare parts :)
[21:59:04] <CaptHindsight> the monkey brain injector sounds reasonable, I'm working with sub-micron orifice micropipets right now used for injecting DNA into the nucleus of cells, drop volume is in the few femtoliters
[22:03:39] <tjtr33> CaptHindsight, (just walked back from McD w coffee) no screw or rail to clamp onto. maybe add a rail just for the brake. all sci-fi tho, dunno of any thing you can look at.
[22:04:11] <tjtr33> and monkey brain injector? i am NaM ( not a monkey )
[22:04:52] <CaptHindsight> tjtr33: dead man safety brake, if power goes out or the motor gets too hot
[22:05:11] <CaptHindsight> https://www.youtube.com/watch?feature=player_detailpage&v=hepoJgGJtNc
[22:05:28] <CaptHindsight> nuclear transfer ^^
[22:07:44] <t12> hah
[22:07:49] <t12> care of uncle howard
[22:09:26] <tjtr33> CaptHindsight, still dunno, you could peek at Sodick Sink EDMs with Z linear motors maybe, i understand the idea, dunno the mechanics/whats available
[22:10:53] <CaptHindsight> http://www.h2wtech.com/Pages/Linear-Magnetic-Brakes.aspx
[22:11:05] <tjtr33> http://www.zimmer-gmbh.de/?lang=en&page=pneumatische_bremselemente
[22:11:44] <CaptHindsight> Pneumatic clamping works as well, as long as you don't have a leak
[22:12:24] <CaptHindsight> it's setup like tractor trailer brakes, if you lose air pressure it locks up
[22:13:16] <tjtr33> i thinks its pneumatic release, so no air = brake, air on = release
[22:14:55] <CaptHindsight> tjtr33: ever use the Kollmorgen linear stuff, they are out in Rockford
[22:15:34] <CaptHindsight> http://www.kollmorgen.com/en-us/products/motors/direct-drive/direct-drive-linear/
[22:16:43] <tjtr33> never used linear motors, had to try to speed up ball screw stuff to higher accs to approach them tho.
[22:16:52] <jdh> wonder if he is out boxing up a lathe for me.
[22:17:12] <tjtr33> and hiwin is right here on Randall in Elgin, they have 'optional brakes for linear motors'
[22:18:02] <CaptHindsight> 2 month lead
[22:18:48] <CaptHindsight> the build the ball screw positioners in Elgin but all the linear motors are out of Taiwan
[22:19:26] <tjtr33> on your way to UpSea ( ShangHai )
[22:20:03] <CaptHindsight> yeah, but I need them here :)
[22:21:23] <CaptHindsight> just picked up 3 Linear motor positioners from Rockwell (anorad)
[22:22:55] <CaptHindsight> sat around all day waiting for the truck only to find out they are a day late :(
[22:26:50] <tjtr33> is the motor gonna move a table that is guided by standard rails? then try the air-release brakes from zimmer, looks just like a tractor bearing for a rail but grabs when air is lost.
[22:27:53] <CaptHindsight> I haven't decided on the Z yet
[22:29:37] <CaptHindsight> $10-20K of microscope and nozzles mounted on it, really leaning to a nice ballscrew
[22:32:08] <tjtr33> for a ballscrew we used magnetic clutches mounted under the main drive pulley. loose power, clutch slams shut, ball screw stops turning ( we ran estop thru it )
[22:32:49] <tjtr33> made in USA, bendix?
[22:33:17] <CaptHindsight> how high were your loads?
[22:35:39] <CaptHindsight> mine are only ~20N
[22:36:39] <tjtr33> Z slides well over 1000# but those had counterbalances. w/o air/weightr balance, up to 800# on a 0.2" pitch 35mm dia ballscrew
[22:37:24] <CaptHindsight> sledgehammer vs tack-hammer
[22:37:29] <spacka> what's the z travel?
[22:37:34] <spacka> distance
[22:37:45] <CaptHindsight> 250mm
[22:38:01] <CaptHindsight> or ~10" :)
[22:38:11] <spacka> yeah, that's a pretty easy conversion :)
[22:38:46] <tjtr33> maybe of use
http://www.thomsonlinear.com/downloads/clutches_brakes/Clutches_Brakes_cten.pdf
[22:39:26] <spacka> tjtr33 is also in chicago area?
[22:39:34] <CaptHindsight> yes
[22:39:38] <spacka> cool
[22:39:39] <spacka> ^5
[22:39:51] <CaptHindsight> there were some others
[22:39:59] <spacka> so you work in a monkey lab?
[22:40:30] <CaptHindsight> don't we all?
[22:40:33] <tjtr33> anyone go see pumpingstation1 in chicago?
[22:40:33] <spacka> heh
[22:40:41] <CaptHindsight> yeah been there
[22:40:42] <spacka> *rimshot*
[22:40:50] <spacka> not yet, it's too far north
[22:40:54] <spacka> i rarely venture into that territory
[22:40:56] <Tom_itx> http://www.pbclinear.com/
[22:41:03] <Tom_itx> is another supplier
[22:41:49] <tjtr33> i think those a re linear motion but not linear motor ( no screw , no belt )
[22:41:52] <CaptHindsight> spacka: did you ever chat with the PS1 people on IRC?
[22:41:59] <spacka> CaptHindsight: nope
[22:42:48] <tjtr33> spacka, hiya, i'm in EL-gin
[22:42:53] <CaptHindsight> the nice thing they have now is a Scanning electron microscope
[22:42:59] <spacka> they should have their spot where people other than hipsters can access it
[22:43:13] <spacka> i have access to an SEM
[22:43:28] <spacka> at u of c
[22:43:37] <spacka> but i'd like to get/build my own
[22:43:40] <CaptHindsight> http://pumpingstationone.org/2013/03/scanning-electron-microscope-update/
[22:43:45] <spacka> first i should get space for it
[22:43:56] <CaptHindsight> Leica Stereoscan 430
[22:44:11] <CaptHindsight> they are on ebay for a few $K
[22:44:32] <spacka> yeah, i browse the sem listings fairly occasionally
[22:44:35] <spacka> :)
[22:45:38] <spacka> tjtr33: hey, i'm on the south side
[22:45:43] <CaptHindsight> they were going to put Mach3 on some round tube table top mills and some China lathe
[22:56:09] <spacka> i'm more interested in the fire arts center
[22:56:13] <spacka> if i was going to go up that way
[22:56:28] <spacka> but i found out their blade forging classes are taught by ceramics artists
[22:58:06] <CaptHindsight> yeah they are about 2 miles west of the fire arts center
[23:03:10] <CaptHindsight> spacka:
https://www.youtube.com/watch?v=WfITSY8aVOE try to get a part time job there :)
[23:06:00] <CaptHindsight> https://www.youtube.com/watch?v=608xOPqggPw
[23:12:19] <spacka> heh
[23:12:25] <spacka> if i had time :)
[23:21:46] <tjtr33> did not know of the fire arts center, clever, like the 'n' in 'fine' at a glance.
[23:21:48] <tjtr33> I ran a place in Oak Park called Reality Inc, everyone thought it was Realty.
[23:22:35] <tjtr33> bye!
