#linuxcnc | Logs for 2014-12-08

[00:00:42] <jason95555> what is that?
[00:07:45] <t12_> some navigation related gyro
[00:07:47] <t12_> air operated
[00:38:21] <renesis> http://imgur.com/a/MeGgL
[00:38:27] <renesis> fusion360 parts
[00:38:35] <renesis> shit works
[00:39:16] <renesis> shit needs more speed holes, heavy
[00:40:44] <renesis> heh, lower acrylic part is recovered from the 3d adaptive fuckup, kind of usable
[02:00:58] <Deejay> moin
[02:05:51] <Connor> renesis: What is that ?
[02:08:48] <renesis> i named it feed block
[02:09:12] <Connor> What's it for or do ?
[02:09:23] <renesis> d batteries fall out of a tube into the fork, it shoves the battery forward, nexy battery sits on the delrin plate on top
[02:10:22] <renesis> after battery is measured, feed block moves back, next battery falls into fork while some other actuators knock the battery left or right depending on voltage once feed block is out of the way
[02:10:51] <Connor> interesting.. fingers look bigger than a D battery..
[02:10:58] <Connor> guess I'll have to see it when complete.
[02:11:01] <renesis> delrin on top so the batteries slide nice, delrin on bottom so the feed block slides nice on machined aluminum platform
[02:11:09] <renesis> is class project thing
[02:11:31] <renesis> yeah its oversized, slightly bigger than the feed tube ID
[02:12:04] <renesis> should sell center a bit when pushed forward, and the measurement terminal will be wide enough shouldnt matter
[02:12:45] <renesis> the slot in between the top and bottom acrylic fork bits is for a optical interference sensor
[02:13:03] <renesis> just going to mount with some double sided sticky
[02:13:16] <renesis> some cheap vhb type stuff
[02:13:52] <renesis> hope it works
[02:14:13] <renesis> i stayed late in lab getting the retarded ladder logic for it working right
[02:14:43] <renesis> walk out at midnight, my custom 24" race bmx stolen
[02:14:52] <renesis> so if this shit doesnt work, im pissed
[02:15:04] <Connor> that sucks.
[02:15:07] <renesis> yeah
[02:15:30] <renesis> i should get good grade tho, my code and fab is done
[02:15:45] <renesis> most students not close on either and they dont even have week left to finish
[02:16:12] <renesis> heh, also im the only active member of my group
[02:16:30] <renesis> two person group, and i just learned other guy is now a child development major
[02:16:36] <renesis> hasnt shown up in a couple weeks
[02:16:52] <renesis> his gf seems cool, shes a mechatronics/mechanical double major
[06:01:25] <jdh> is she hot?
[06:04:05] <archivist> puzzle for the day, when was mitutoyo's catalog 455 published, my guess is during the 1960's
[06:13:43] <archivist> number 500 seems to be 1968, 550 was 1969
[06:26:56] <renesis> jdh: a little, brown girl with a big butt
[06:27:19] <renesis> would do it, even tho shes prob 15 years younger than me
[07:49:54] <jdh> are you just old, or is she an infant?
[07:59:42] <TekniQue> here's betting she's 12
[09:10:55] <renesis> jdh: teknique: im 34, shes a freshman
[09:11:14] <renesis> everyone thinks im mid late 20s =)
[09:11:45] <renesis> one of my instructors is like, "... yeah, well youre a good kid"
[09:11:59] <renesis> "charlie, im a year older than you"
[10:33:54] <malcom2073> [08:39:40] <TekniQue> here's betting she's 12 <- Just cause that's how you roll over there... :P
[10:36:49] <TekniQue> 12 year olds need love too!
[10:43:36] <SpeedEvil> https://www.youtube.com/watch?v=xyXplN23ALM how to pick up girls
[13:19:29] <zeeshan> how do i pass 18 wires that total to roughly 2" diameter through an enclosure
[13:19:37] <zeeshan> these are the wires for my limit switches, encoders, etc
[13:19:40] <zeeshan> basically signal stuff
[13:24:04] <CaptHindsight> zeeshan: with a nipple
[13:24:10] <zeeshan> ??
[13:24:56] <_methods> bulkhead fittings
[13:25:07] <_methods> cable glands
[13:25:13] <_methods> whatever you want to call them
[13:25:17] <zeeshan> i dont see a 2" cable gland :P
[13:25:44] <_methods> well most people probably break those down into groups to go into the housing
[13:25:53] <CaptHindsight> 2" version of this http://cdn.mscdirect.com/global/images/ProductImages/0456042-21.jpg
[13:25:59] <_methods> taht way you can work on stuff independently
[13:26:39] <CaptHindsight> I thought you were joking
[13:26:42] <zeeshan> http://i.imgur.com/teI4Yho.jpg
[13:26:44] <zeeshan> in that case
[13:26:52] <zeeshan> i should just mount something like this to the outside of my case
[13:27:19] <zeeshan> it'll give me room to expand later on
[13:27:32] <zeeshan> im not sure what these type of connectors are :p
[13:28:10] <CaptHindsight> 2" chase nipple
[13:28:51] <CaptHindsight> or yeah you can run 4-1" chase nipples instead of one big 2"
[13:28:57] <CaptHindsight> whatever you want
[13:30:10] <CaptHindsight> the problem with a chase nipple is that it doesn't bite into the metal on the flared side of the nipple
[13:31:00] <CaptHindsight> so for electrical power installation they require a close nipple with nuts that bite into the box and then you have to add plastic bushings to each side of the nipple
[13:36:06] <_methods> those connectors you posted zeeshan were hooded connectors
[13:37:21] <zeeshan> nothing shows up on google images w/ hooded connectors as the query
[13:37:25] <_methods> yeah
[13:37:31] <_methods> i'm lookin for their real name
[13:37:35] <zeeshan> i think i need to look at them closer
[13:37:38] <zeeshan> they must have a marking
[13:38:26] <CaptHindsight> those a named by the type of pins, they just have a backshell
[13:38:31] <_methods> http://www.molex.com/molex/products/family?key=heavy_duty_rectangular_connectors__hmc&channel=products&chanName=family&pageTitle=Introduction&parentKey=rectangular_industrial_connectors
[13:39:30] <_methods> i guess search rectangular connectors
[13:39:48] <CaptHindsight> zeeshan: what current do you need per pin?
[13:40:08] <zeeshan> like 500mA max
[13:43:23] <_methods> http://www.aliexpress.com/item/1pc-Rectangular-plug-connector-24-core-16A-aviation-plug-hot-runner-connector/1460815715.html
[13:45:14] <CaptHindsight> http://www.digikey.com/product-search/en/connectors-interconnects/rectangular-connectors-free-hanging-panel-mount/1442549
[13:46:19] <CaptHindsight> oh man as soon I choose in stock with backshell it finds 0
[13:51:16] <CaptHindsight> http://www.digikey.com/product-search/en/connectors-interconnects/heavy-duty-connectors-housings-hoods-bases/1442725 pick your shell then find the connector that fits them
[13:51:49] <CaptHindsight> some of the hoods are >$200ea
[13:52:01] <Tom_itx> awesome!
[13:52:11] <zeeshan> lol
[13:52:23] <_methods> that's why i sent that aliexpress link lol
[13:52:30] <CaptHindsight> it's just not used for anything consumer
[13:52:35] <_methods> those connectors are insane spensive
[13:52:52] <Tom_itx> they should never break for that price
[13:52:56] <CaptHindsight> once he finds something then we can find a better source
[13:54:01] <CaptHindsight> zeeshan: do you really want rectangular or are circular ok?
[13:54:26] <_methods> if you watch ebay you can find them used for decent prices
[13:54:45] <_methods> the pins are crazy expensive too
[13:54:50] <_methods> dont' forget agbout that in your price
[13:55:44] <CaptHindsight> all plastic FCI circular are low cost
[14:07:02] <CaptHindsight> zeeshan: how many contacts per connector would you like?
[14:09:08] <zeeshan> 9 pin * 6 (a,c,x,y,z, spindle encoders) , 2 pin*5 (x,y,z,a,c, limit switches), 5 pin (interface switches), 4 pin (hydraulic solenoid 3A for 2 pins, 2 pins pressure switch)
[14:09:15] <zeeshan> thats how many contacts i need to pass through
[14:09:25] <zeeshan> how many contacts per pin is dependent on cost :)
[14:09:32] <jdh> you needt BT-LE encoders and limits
[14:10:06] <zeeshan> lemme take a picture of the bundle of wires :)
[14:10:32] <CaptHindsight> http://www.mouser.com/ds/2/222/KMDAX-9P-11683.pdf
[14:10:44] <CaptHindsight> ~$4ea
[14:14:39] <CaptHindsight> http://www.amphenol.info/connector/C016-10H012-003-2/1661.html ~$16ea but 12 contacts
[14:17:18] <CaptHindsight> http://www.mouser.com/ProductDetail/Hirose-Connector/RP17-13R-12SC71/?qs=sGAEpiMZZMvf6myxbP4FpGZmNstDlCUzbbeC5Z%252bsD3c%3d
[14:17:28] <CaptHindsight> 1: $2.18
[14:17:41] <CaptHindsight> Circular Push Pull Connectors REC 12POS FEM CRIMP
[14:17:56] <CaptHindsight> Current Rating: 2 A
[14:18:44] <CaptHindsight> those are about the lowest cost unless you find knock-offs that fell out the back of a truck in China
[14:19:31] <Tom_itx> zeeshan why the heck is 18 wires 2" diameter anyway?
[14:19:38] <Tom_itx> they're friggin signal wires
[14:20:43] <CaptHindsight> safety margin :p
[14:20:59] <Tom_itx> a phone trunk wire has alot more wires than that and it's only about 5/8"
[14:21:41] <Tom_itx> lemme know where you live so when you get all done i can come steal all the copper outta your box
[14:21:42] <CaptHindsight> telcos are able to be fast and loose with safety
[14:21:43] <Tom_itx> i could retire
[14:22:16] <Tom_itx> yeah but still...
[14:22:33] <CaptHindsight> why don't all the 3d printer kids work on a printer for making connectors and shells?
[14:22:54] <CaptHindsight> they would have something practical and affordable that many people could use
[14:23:01] <Tom_itx> probably none of them care about real cnc
[14:23:37] <CaptHindsight> polyamides are easily glue gunned
[14:24:04] <Tom_itx> http://tom-itx.no-ip.biz:81/~webpage/cnc/psu/wire.jpg
[14:24:07] <Tom_itx> i used that on my limits
[14:24:13] <Tom_itx> some aircraft surplus
[14:24:28] <zeeshan> i proly overestimated the 2"
[14:24:31] <zeeshan> posting some pics
[14:24:46] <Tom_itx> trying to impress? :)
[14:24:53] <zeeshan> haha
[14:24:54] <zeeshan> no
[14:24:59] <zeeshan> i just need to figure out what holes to make in the enclosure
[14:25:12] <zeeshan> i'd hate to be making holes when stuff is wired in there
[14:25:44] <zeeshan> https://www.flickr.com/photos/128539016@N05/15952304036/
[14:25:47] <CaptHindsight> I use a step drill and keep going until the connector falls though, then I stop one step before
[14:25:51] <zeeshan> thats the bundle of wires. note its missing 4 black wires
[14:25:52] <Tom_itx> maybe i can get my boards back together tonight..
[14:26:43] <zeeshan> https://www.flickr.com/photos/128539016@N05/15976079151/ https://www.flickr.com/photos/128539016@N05/15977406582/ https://www.flickr.com/photos/128539016@N05/15358446183/ https://www.flickr.com/photos/128539016@N05/15792344447/
[14:26:53] <zeeshan> some pics of the connectors that came with the machine that i'd like to reuse if i can.
[14:28:04] <zeeshan> odessa?
[14:28:06] <Tom_itx> how many of those are gonna stay?
[14:28:14] <zeeshan> Tom_itx: i'd like to keep all those connectors
[14:28:19] <zeeshan> so i can expand in the future if i need to
[14:28:33] <Tom_itx> they're friggin huge
[14:28:44] <zeeshan> 5x5 = 25* 6 pin each
[14:28:50] <zeeshan> so 150 pins
[14:28:54] <zeeshan> which is more than plenty
[14:29:37] <Tom_itx> any markings on them?
[14:29:47] <zeeshan> https://www.flickr.com/photos/128539016@N05/15792344447/in/photostream/
[14:29:51] <zeeshan> thats tyhe only one with a marking
[14:29:55] <zeeshan> the other ones say 250/16
[14:29:59] <zeeshan> which im assuming its rated for 250v, 16a
[14:30:13] <zeeshan> OOOESA?
[14:30:20] <zeeshan> DOOESA? :D
[14:30:38] <CaptHindsight> automotive wire to wire connectors like those are cheap
[14:31:26] <CaptHindsight> $2 connectors that end up $50 at the stealership
[14:31:42] <zeeshan> yea the delphi ones
[14:31:58] <zeeshan> i have ton of those connectors for race car wiring
[14:32:03] <zeeshan> but theyre only rated for 24vdc max i think.
[14:32:11] <Tom_itx> thing i hate about auto connectors is every single one is different it seems
[14:32:24] <Tom_itx> and they all lock some how
[14:32:41] <Tom_itx> anyway, i'm gone...
[14:34:10] <zeeshan> er
[14:34:16] <zeeshan> it says VS3000.
[14:35:19] <CaptHindsight> zeeshan: the polymer can handle much more
[14:35:36] <zeeshan> i belive you
[14:35:43] <zeeshan> its just nice to have connectors speced for a specific rating
[14:35:44] <CaptHindsight> zeeshan: aren't you using them for signal?
[14:35:53] <zeeshan> i am
[14:35:56] <zeeshan> but theyre 24vdc signals
[14:35:57] <CaptHindsight> whats your max V for signal?
[14:36:04] <zeeshan> some are 5v
[14:36:14] <CaptHindsight> so no problem
[14:36:22] <zeeshan> the thing is i have all these connectors
[14:36:25] <zeeshan> so it makes no sense to buy more?
[14:36:42] <CaptHindsight> why bother?
[14:36:50] <zeeshan> the automotive style connectors are like this:
[14:36:58] <zeeshan> http://www.bmotorsports.com/shop/images/CONN-85563.jpg
[14:37:05] <zeeshan> theyre not meant as bulkheads
[14:37:46] <CaptHindsight> cast them into a frame
[14:38:00] <zeeshan> lol
[14:38:04] <zeeshan> i want the easiest route
[14:38:08] <zeeshan> not the most time consumiung
[14:38:23] <CaptHindsight> it's all they are
[14:39:49] <CaptHindsight> machine holders out of PVC, epoxy them in place
[14:39:54] <zeeshan> which i could find some specs
[14:40:03] <zeeshan> CaptHindsight: WHY?
[14:40:06] <zeeshan> did i not just say
[14:40:10] <zeeshan> i already have connectors that came with the machine
[14:40:11] <zeeshan> sigh
[14:40:37] <zeeshan> i dont understand the point of using automotive connectors when i already have some that came with the original controller?!?
[14:40:37] <CaptHindsight> zeeshan: jfc why are you even asking then?
[14:41:14] <zeeshan> i gues its my fault
[14:41:16] <zeeshan> i was not clear
[14:41:33] <zeeshan> i'm not sure how to mount em on the outside of my box.
[14:41:45] <zeeshan> i think im going to need a rectangular hole
[14:41:45] <CaptHindsight> my apologies if you've suffered a recent head injury
[14:42:15] <zeeshan> actually, i have,
[14:42:31] <zeeshan> thats why i have not been on irc much
[14:43:10] <CaptHindsight> understandable, been out with the flu myself
[14:43:31] <zeeshan> i possibly have a tumor in the middle ear
[14:43:34] <zeeshan> which is screwing with me
[14:43:39] <zeeshan> (non canerous)
[14:43:43] <zeeshan> *cancerous
[14:44:04] <zeeshan> im hearing a constant ringing of my left ear and its driving me insane! :)
[14:44:40] <zeeshan> im really wondering if that 250/16 marking means 250v 16A
[14:44:57] <zeeshan> cause the original box had some 110V pins
[14:45:01] <zeeshan> going through the red connectors.
[14:52:26] <CaptHindsight> https://www.flickr.com/photos/128539016@N05/15358446183/ those contacts are enormous
[15:04:54] <zeeshan> youre right
[15:04:57] <zeeshan> i took them all apart now
[15:04:58] <zeeshan> theyre huge!
[15:05:05] <zeeshan> i dunno why i was thinking they were small
[15:05:18] <zeeshan> my only main concern now is this
[15:05:26] <zeeshan> glass scales analog signal comes to this connector.
[15:05:29] <Connor> But, they're not meant to be bulkhead
[15:05:44] <zeeshan> connor im just gonna silicone goop it up
[15:05:47] <zeeshan> around the rectangular hole
[15:05:56] <Connor> ok.
[15:06:30] <zeeshan> so glass scale analog signal comes to this connector (3 pairs of differential signals)
[15:06:44] <zeeshan> 5v signal.
[15:06:51] <zeeshan> will passing it through this connector cause issues? :/
[15:07:03] <zeeshan> especially if its right next to a 24vdc limit switch signal
[15:07:31] <zeeshan> the reason i ask is this:
[15:08:29] <zeeshan> the heidenhain glass scale wires are terminated using this connector: http://img.directindustry.com/images_di/photo-m2/signal-connector-straight-circular-push-pull-4740-2607673.jpg
[15:08:31] <zeeshan> top right
[15:08:41] <zeeshan> its a fancy schamncy connector..
[15:08:59] <zeeshan> i was thinking of chopping it off and passing it through this :P
[15:31:56] <zeeshan> is there some sort of braiding other than corruguated split wire loom you can use around a bundle of wires?
[15:32:06] <zeeshan> it has to be split :)
[15:33:06] <zeeshan> i thought wiring a cnc controller was a pain
[15:33:07] <zeeshan> holy cow:
[15:33:08] <zeeshan> http://russos.ru/img/trip/2013-02-ssj/ssj-fa-26.jpg
[15:33:27] <zeeshan> http://russos.ru/img/trip/2013-02-ssj/ssj-fa-09.jpg
[15:33:28] <zeeshan> shes having fun
[15:46:45] <SpeedEvil> zeeshan: well - you can hand-laceit
[15:46:47] <SpeedEvil> it
[15:57:52] <zeeshan> okay guys i took apart one of the glass scale wire bundles
[15:58:12] <zeeshan> it has an external shield... which is supposed to get bonded to the housing of the connector
[15:58:26] <zeeshan> then theres a bundle of wires each with 2 pairs in it with its own internal shielding
[15:58:40] <zeeshan> own shielding i mean. the manual refers to this as "inside shield"
[15:58:56] <zeeshan> and it supposed to ground at the PCB of the interpolator
[15:59:03] <zeeshan> can someone explain this socery :)
[16:01:14] <CaptHindsight> earth ground/chassis ground and signal ground
[16:01:29] <zeeshan> the signal ground is floating relative to chassis ground?
[16:02:05] <CaptHindsight> inside shield is signal ground
[16:02:11] <zeeshan> CaptHindsight: whats the point of having a twisted pair and having its own shield
[16:02:15] <zeeshan> and then having 3 sets of these..
[16:02:26] <zeeshan> vs having 3 twisted pairs with one big shield?
[16:02:31] <CaptHindsight> poor differential amplifiers
[16:02:59] <CaptHindsight> in theory the differential signals cancel out common mode noise
[16:03:19] <zeeshan> i understand that :P
[16:03:36] <zeeshan> but i don't get the purpose of shielding each twisted pair vs shielding them all together with one shield?
[16:03:44] <zeeshan> *of them
[16:04:20] <CaptHindsight> this assumes perfect out puts and inputs
[16:04:21] <zeeshan> the only logical reason i can think of is to stop "cross-talk"
[16:04:33] <roycroft> you don't want crosstalk leaking over from one pair to another
[16:04:37] <roycroft> yes
[16:04:47] <CaptHindsight> so to make up for olden electronics they would add extra shields
[16:05:45] <CaptHindsight> thats why today you'll see 10gb over copper vs just 10mb
[16:05:53] <CaptHindsight> better amps
[16:06:43] <zeeshan> damn old electronics! :)
[16:06:58] <zeeshan> my next question is this.. and i really think im overthinking it, but someone will prolly have a better understanding
[16:06:59] <CaptHindsight> they used what they had
[16:07:07] <CaptHindsight> in the best way they could
[16:08:28] <CaptHindsight> and even though the electronics are much better today the cheapskates running manufacturing just cut corners and the products end up performing nearly as poorly
[16:08:34] <zeeshan> wire with 4 twisted pairs each with its own internal shield + the entire cable with external shield -> bulkhead connector (the one i posted before) the external shield would go to one pin, the internal shield to another pin, each twisted pair obviously to its own pin. -> out of bulkhead the external shield pin connects to external shield, and internal shield for each twisted pair connectrs to the
[16:08:45] <zeeshan> internal shield pin
[16:08:59] <zeeshan> so technically at 4-5 mm of the connector, there will be unshielded stuff? :/
[16:09:21] <zeeshan> this is why heidenhain uses a round connector with the internal shield pin being the very middle pin
[16:09:32] <zeeshan> and the body of the bulkhead connector being the external shield
[16:09:35] <zeeshan> so there is no break in the shield
[16:09:45] <zeeshan> does that make sense?
[16:23:58] <Deejay> gn8
[16:46:00] <Computer_Barf> http://i.imgur.com/mgHibIN.png
[16:46:29] <Computer_Barf> alien:isolation inspired power supply vent
[16:51:57] <zeeshan> question for you guys
[16:52:11] <zeeshan> why cant you use the same technology that manufactures cpu
[16:52:15] <zeeshan> and build nano machines?
[16:52:35] <LeelooMinai> MEMs is best what you get now
[17:22:06] <CaptHindsight> zeeshan: those are only silicone
[17:23:05] <CaptHindsight> if you want to fabricate nano machines then you use 2-photon lithography, or interference lithography
[17:24:17] <CaptHindsight> zeeshan: http://www2.chem.umd.edu/groups/fourkas/research.html
[17:25:18] <CaptHindsight> http://www.nature.com/nature/journal/v398/n6722/images/398051ac.eps.2.gif
[17:29:49] <CaptHindsight> zeeshan: http://soft-matter.seas.harvard.edu/images/7/7b/Mpl.jpg
[17:52:24] <zeeshan> wolw
[17:52:26] <zeeshan> thats cool1!
[17:59:32] <CaptHindsight> zeeshan: it's still odd that there are lots of practical parts that can already be printed this way but the examples in the press are similar to Yoda heads
[18:06:28] <zeeshan> they need to put a lot of funding into this
[18:06:32] <zeeshan> it could cure cancer.
[18:06:46] <zeeshan> especially if you could put a sensory system on it to detect bad cells.
[18:08:19] <SpeedEvil> Well - no.
[18:08:29] <SpeedEvil> Single cogs and isolated gears do fuck all
[18:08:51] <SpeedEvil> Mature nanotech - programmable tiny bots are some way off yet.
[18:09:04] <SpeedEvil> For a large number of reasons
[18:20:19] <zeeshan> well if we can make bots that are 1mm max in diameter
[18:20:21] <zeeshan> and have cutting abilities.
[18:20:46] <zeeshan> you can easily cut off growths benign growths
[18:20:58] <zeeshan> without having to cut the person up from the outside
[18:21:04] <zeeshan> and possibly destroy things in the process
[18:26:33] <zeeshan> http://www.zmescience.com/research/photograph-nanobots-cancer-25032010/
[18:52:49] <Rab> zeeshan, beep
[19:27:36] <XXCoder> http://www.lab-initio.com/screen_res/nz241.jpg
[19:27:43] <XXCoder> abonominable snowboy
[20:48:41] <zeeshan> hi rab
[20:49:17] <Rab> zeeshan, big haul today.
[20:49:23] <zeeshan> pics!
[20:49:34] <Rab> http://i.imgur.com/KsahbBd.jpg
[20:50:04] <zeeshan> LOL
[20:50:10] <zeeshan> did you take apart a factory?!?!
[20:50:12] <Rab> I know a guy who owns an e-waste place...he told me they were shutting down and clearing out the warehouse, and to come take whatever I wanted.
[20:50:28] <Rab> So I started with the linear motion assemblies. :D
[20:50:54] <zeeshan> you have like 2000lb of aluminum there
[20:51:08] <Rab> Yeah, lots of stainless steel too. The car tires were bellied out.
[20:51:20] <zeeshan> sweet man
[20:51:25] <zeeshan> are there linear acutators there
[20:51:27] <zeeshan> pneumatic?
[20:51:32] <zeeshan> i see a crap load of pneumatic lines
[20:51:43] <zeeshan> if you dont need those valves
[20:51:47] <zeeshan> you should ebay em. they're $$$
[20:52:10] <zeeshan> nice haul dude
[20:52:11] <Rab> I think they're the business ends of old tape libraries. Lots of name-brand linear slides, NSK/IKO/etc, beefy steppers and servers, name-brand ballscrews.
[20:52:11] <zeeshan> im jealous :)
[20:52:31] <Rab> Timing belts and cogs of various sizes.
[20:52:42] <zeeshan> servos you mean?
[20:53:31] <Rab> This sort of thing, I guess they're called gears: http://www.motionco.co.uk/images/mxl_pulleys/mxl_pulley1.jpg
[20:53:49] <Rab> High-speed servos for the tape spindles.
[20:53:52] <zeeshan> those look like mxl pulleys
[20:54:05] <zeeshan> nice man
[20:54:07] <Rab> Right, some look like MXL and some are much larger pitch.
[20:55:34] <Rab> Not a lot of travel, I think the longest slides are 12" travel or so. But I have enough hardware to put together a whole battery of brutal small-scale routers. ^_^
[20:55:37] <zeeshan> cant wait to see when youve got it all unloaded
[20:55:38] <zeeshan> :)
[20:56:34] <Rab> It's packed so deep you can't see much. My place is a wreck. Pulling the goodies off some of the assemblies just to scrap the bulk and save some space.
[20:57:11] <zeeshan> well im sure you can make it take less space
[20:57:21] <zeeshan> if you disassembled all those plates that you know you dont need as is
[20:57:44] <Rab> Ironically I've been trolling eBay hard lately for parts for a small (12x12x5) router...today is my lucky day.
[20:57:45] <zeeshan> in that pic you posted
[20:57:47] <zeeshan> at the very back
[20:57:51] <zeeshan> there is a round cylinder.. shiney
[20:57:54] <zeeshan> top left of the pic
[20:57:56] <zeeshan> what is that?
[20:58:06] <Rab> Yeah, definately not scrapping the Al and SS.
[20:59:00] <Rab> That's a servo, the silver part is the encoder cover and the white nose is a shaft cover.
[20:59:17] <zeeshan> :D
[20:59:28] <zeeshan> how many stepper / servos do you think you have?
[20:59:44] <Rab> The motors and servers all have complementary driver electronics, too.
[20:59:58] <Rab> Guessing 10 or more?
[21:00:38] <zeeshan> nice
[21:06:48] <Rab> http://i.imgur.com/CKAgTz7.jpg
[21:06:51] <Rab> http://i.imgur.com/Xf9Km5C.jpg
[21:06:54] <Rab> http://i.imgur.com/Kkb8Hx8.jpg
[21:06:57] <Rab> http://i.imgur.com/22pp93H.jpg
[21:07:23] <Rab> Stupid phone rotates pictures to the least optimal orientation.
[21:08:04] <zeeshan> so nice!
[21:08:31] <Rab> Never heard of 5-phase steppers before (2nd pic)...good thing the control electronics came with it.
[21:09:14] <Tecan> Rab you should really downsize those before uploading
[21:09:24] <Rab> 3rd pic is an assembly I stripped down. Slide/ballscrew, 3A servo, servo pack, on like 3/4" aluminum.
[21:09:50] <Tecan> nm my internets just slow
[21:09:50] <Rab> Tecan, I did. I chose the 1600x1200 size in an attempt to preserve nameplate information.
[21:19:17] <jdh> 5-phase steppers require pricey drivers. 500 steps/rev though
[21:20:01] <skunkworks> the ones we have are set to 1000 - must be half stepping :)
[21:21:45] <Rab> Yeah, 0.72 degree. And the ballscrews are 5 tpi. I guess I'll need to worry about speed more than resolution.
[21:22:56] <Rab> .0004" linear resolution.
[21:23:05] <Tecan> http://acidcow.com/pics/66285-how-to-dispose-of-a-f-117-bomber-5-pics.html
[21:34:56] <unfy> drool
[21:35:24] <unfy> (the drool was for rab, not the f117)
[21:37:11] <XXCoder> wanna date rab ;)
[21:37:13] <FinboySlick> I find the F117 thing sad.
[21:37:40] <XXCoder> fin not much you can when its very details build is top secret. You have to destroy it.
[21:38:07] <Rab> XXCoder, you only want me for my e-waste.
[21:38:26] <XXCoder> lol nah I was asking unfy
[21:38:52] <FinboySlick> XXCoder: But if you sell it to dictators instead, you get an excuse to bomb them because you can demonstrably prove that they have offensive capabilities!
[21:38:58] <unfy> yeah, that's why it's paint's been stripped and the tarp is down etc
[21:39:12] <unfy> (dad was 20-some year navy...)
[21:39:29] <XXCoder> sadly I have parts of cnc router but still havent built it bah
[21:39:49] <Rab> That F117 disassembly looks kinda staged. I wonder what the story is. Maybe it's intended to be visible to Russian spy satellites.
[21:40:52] <unfy> xxcoder: i've got the electronics (sans wire) ... need to plan and buy the physical stuffs soon
[21:40:54] <Rab> Looks like a contractor facility rather than an aircraft boneyard.
[21:42:50] <XXCoder> im considering waiting till I have enough to buy 8020 stuff
[21:42:55] <XXCoder> easier to build.
[21:49:17] <jepler> www.cbc.ca/news/world/chlorine-gas-sickens-19-at-furries-convention-1.2863783
[21:49:33] <XXCoder> http://i.crackedcdn.com/phpimages/photoshop/3/0/2/347302_v1.jpg
[21:51:28] <XXCoder> jepler: yeah it sucks people would do that. I'm no furry but all hate crimes suck
[22:15:18] <renesis> connor: rab: 07:23:56 < Rab> Looks like a contractor facility rather than an aircraft boneyard.
[22:15:23] <renesis> er
[22:15:25] <renesis> no
[22:15:41] <renesis> connor: rab: https://vid.me/peH4
[22:15:47] <renesis> what the parts were for
[22:16:39] <renesis> i had to give it little deflectors because it kept launching the good batteries at my nuts
[22:17:26] <XXCoder> battery and nuts
[22:17:47] <XXCoder> whats it for
[22:18:13] <renesis> class project, sort batteries depending on voltage
[22:18:21] <XXCoder> nice
[22:18:25] <renesis> design came from when their was a hopper requirement
[22:18:26] <XXCoder> I'd ghave loved that project
[22:18:29] <renesis> they killed that because wtf
[22:18:40] <renesis> its a 3 unit course, one semester
[22:18:52] <XXCoder> im sure im missing priors
[22:19:04] <renesis> naw i dont think there is prereq for this
[22:19:07] <renesis> its intro
[22:19:22] <renesis> itz hazing via ladder logic
[22:19:27] <renesis> *its
[22:20:09] <XXCoder> lol ok
[22:21:42] <FinboySlick> My intro to automation was on Siemens, we had to code an elevator... and it though we did upload the code to the device, the result was simulation only.
[22:22:23] <XXCoder> class I was in I used actual small elevator. we had contests on fastest possible. had to use two boards and figure how to communcate
[22:22:29] <FinboySlick> Access to pneumatics would have been great.
[22:22:35] <XXCoder> mine and team mamber's was second fastest
[22:23:54] <FinboySlick> There were seveal large GE robots in the hall, but they didn't let us program those 'till a few semesters later.
[22:24:30] <renesis> haha
[22:24:34] <renesis> @ little elevators
[22:25:32] <renesis> the siemens software is prob better
[22:25:38] <FinboySlick> We also had to learn Catia V4 on ultrasparc.
[22:25:50] <renesis> took awhile to figure out what was ladder logic frustration and what was software ui frustration
[22:25:57] <renesis> heh
[22:26:13] <renesis> these mechanical guys are like, YOU JUST HAVE TO SEE IT LIKE A CIRCUIT
[22:26:44] <renesis> and i kept going, guys i could make this shit with relays and caps and resistors, it works as an electronics circuit
[22:32:02] <unfy> the video: it's the "useless machine" >_>
[22:33:40] <FinboySlick> Speaking of useless machines: http://youtu.be/XTAULdznHug Found that one amusing.
[22:33:57] <FinboySlick> I think it's even funnier in Canada.
[22:34:12] <renesis> unfy: yesh i could test with a dmm faster
[22:34:32] <XXCoder> its not useless
[22:34:36] <XXCoder> its eye candy :P
[22:34:46] <unfy> heheheh
[22:35:11] <XXCoder> seriously lol
[22:35:21] <unfy> everyone knows this one: http://i.minus.com/ibrep0calJZaJQ.gif .... but what about the living version: http://38.media.tumblr.com/tumblr_m6aae3QXCH1qfjjglo1_500.gif
[22:36:09] <unfy> there's no description about what the battery thing is doing...
[22:36:17] <FinboySlick> I love the cat's *lightning-jab*
[22:36:32] <unfy> but as a tester :D
[22:36:40] <FinboySlick> I hear a Bruce Lee sound in my mind every loop.
[22:36:47] <FinboySlick> Woohtah!
[22:37:52] <XXCoder> FinboySlick: gonn love how cat licks claws like wounded that fake cat
[22:38:31] <unfy> awww shux
[22:38:35] <FinboySlick> I'm very curious how my cat would react to that.
[22:38:41] <unfy> i zoomed the gif to show someone later. it's faked ._.
[22:38:54] <unfy> (the lid floats around)
[22:40:23] <unfy> it looks like it was a real product and there are more gifs etc of it
[23:03:13] <FinboySlick> https://www.youtube.com/watch?v=tEobxyRZMPY Is it me or does this machine sound terribly clunky?
[23:03:29] <FinboySlick> It should be running smoother, no?
[23:04:14] <toastydeath> yeah that's pretty janky
[23:04:19] <FinboySlick> Sounds like rattling bearings.
[23:04:44] <toastydeath> Z sounds good
[23:04:47] <toastydeath> spindle sounds good
[23:05:10] <toastydeath> table sounds like someone took a shit made entirely of iron dust in the ball nut
[23:06:33] <CaptHindsight> yup
[23:06:48] <CaptHindsight> ugly
[23:08:51] <CaptHindsight> that price is way way too high for that machine in that state
[23:09:08] <CaptHindsight> Price: $19500 thats insane
[23:09:14] <toastydeath> lol
[23:09:17] <toastydeath> that's amazing
[23:09:36] <CaptHindsight> it's too high at 9500
[23:09:36] <FinboySlick> Might be the circuit that says "fourth axis" every time the 4th axis moves.
[23:09:47] <FinboySlick> That can't be free.
[23:10:32] <CaptHindsight> Mohawk usually has better prices
[23:11:55] <CaptHindsight> https://www.youtube.com/watch?v=Vx2SUW7xJu4 it should sound like this one
[23:13:51] <CaptHindsight> only used on Sundays by a little old lady to cut butter
[23:14:05] <toastydeath> muuuuch better screws
[23:14:14] <toastydeath> trunnion table
[23:14:16] <toastydeath> hell yeah
[23:14:27] <FinboySlick> 230 volts? Two phase?
[23:16:07] <CaptHindsight> nope
[23:16:10] <FinboySlick> I'd expect something this size to be 550 three-phase.
[23:17:11] <CaptHindsight> 480/240 3p
[23:20:07] <FinboySlick> Well, all I need now is to win the lottery.
[23:20:22] <FinboySlick> CaptHindsight: Did you see that little motor I linked this weekend?
[23:21:51] <CaptHindsight> nope
[23:22:18] <FinboySlick> http://liquidpiston.com/technology/how-it-works/ It's like an inverted wankel.
[23:28:32] <CaptHindsight> combustion every cycle
[23:30:34] <CaptHindsight> I'd like to see the power curve vs rpm
[23:31:50] <FinboySlick> Not sure on that but they apparently have good power density on practical tests. The theorical performance is impressive but it's good that they actually have working prototypes.
[23:31:55] <CaptHindsight> probably needs to paired with a CVT
[23:33:09] <FinboySlick> First application I can think of is generator right at the crest of its efficiency curve.
[23:34:16] <CaptHindsight> http://liquidpiston.com/technology/x-mini-gasoline/ on the dyno
[23:36:34] <FinboySlick> Hehe, the 3HP is tiny. I guess I could make one on my mill.
[23:38:39] <FinboySlick> Though to get one actually running, I guess one would need EDM.
[23:38:57] <FinboySlick> Anyway, I thought it was cool.
[23:39:17] <XXCoder> CaptHindsight: thats strange
[23:39:26] <XXCoder> it has no gasket from what I see
[23:39:35] <XXCoder> so it [probably wont suffer wankel issues
[23:40:04] <FinboySlick> XXCoder: wiper seals are on the casing rather than the 'piston'.
[23:40:33] <XXCoder> ah I see it
[23:40:57] <FinboySlick> But according to them, that solves the 'wankel' problem.