#robotics Logs

Mar 04 2014

00:37 rue_more 2 axis?
00:37 rue_more use cables to feed the tray back and forward
00:38 orlock yeah, i would like a Z axis but dont know what sort of cutter i'd be using
00:43 rue_more use the one from a hair dryer
00:44 rue_more just have to straighten it out
00:46 orlock ahh
00:46 orlock no, i'm thinking cutter as in milling flower foam or something
00:46 orlock not hot sire cutter
00:46 orlock but,need to clean my desk off first
00:46 orlock but, i do have the big bits all lying around
01:07 rue_bed well, making a cnc for foam wont be hard
01:08 GargantuaSauce yeah most of the design constraints for precision and damping vibrations are gone
01:10 GargantuaSauce http://www.saylor.org/sse-enrollment-page/
01:10 GargantuaSauce this just kicked off and the material looks pretty interesting
08:05 Zaarin Hi guys! I got some big gears and a giant starter motor from the scrapheap, the gears are the same MOD and mesh nicely, quick question, do you guys feel I should take the pinion off and put it on the neighbouring NEMA 34 or keep the existing behemeoth motor, if b, how do I wire it up to the arduino? Here are some photos of it: http://i.imgur.com/p6yUTLz.png , http://i.imgur.com/5jTrIqS.png
08:12 aemquo What do you mean "how do I wire it up to the arduino"?
08:13 Zaarin So I can make it go forwards or backwards from code
08:18 Zaarin or clockwise and anticlockwise morelike#
08:30 aemquo read the manual?
08:32 Zaarin didn't come with one got it off teh scrapheap
08:33 aemquo does it have any serial numbers/etc?
09:20 rue_more too many arduino prople dont understand electrical
11:33 MrCurious how do you write four between five
11:34 GargantuaSauce | f | o | u | r | ?
11:44 MrCurious F(IV)E
11:46 GargantuaSauce that's not between, that's inside
11:46 GargantuaSauce mine's better
14:12 SquirrelCZECH your favorite free linux FEM Analysis software?
14:27 armyofevilrobots http://www.freecadweb.org/wiki/index.php?title=Fem_Workbench
14:27 armyofevilrobots but my fave is Cosmos/Solidworks. Sorry.
14:44 SquirrelCZECH well
14:44 SquirrelCZECH it's not like I am in favor of freecad O:)
14:47 SquirrelCZECH but thanks, I will try it
15:27 SlaveToTheSauce_ http://www.reddit.com/r/robotics/comments/1zcdq9/6axis_arm_design/
15:27 SlaveToTheSauce_ this is pretty sweet
20:41 rue_more cool quasi-harmonic
20:41 MrCurious you know what putin said....
20:42 MrCurious u crane is parked on my land
20:42 rue_more hahah completely canativered :( oh well
21:57 rue_more oops, woke up in the chair
22:11 GargantuaSauce http://xn--d-bga.su/deadservo.jpg i think it got hot
22:15 rue_more there is a type of bipolar transistor thats got really great ratings, its called explatial or soemthing, anyone know the word?
22:15 GargantuaSauce epitaxial?
22:15 robotustra_ MrCurious: watch this http://www.youtube.com/watch?v=ZwspcvY5kvg
22:16 rue_more the word looks something like that, they have REALLY low votlage drops
22:16 robotustra_ putin didn't say that
22:16 robotustra_ it's sad pro american translator to your TV
22:17 MrCurious we can rebuild it...
22:17 MrCurious make it better than it was...
22:17 MrCurious faster
22:17 MrCurious stronger
22:17 MrCurious <ue music>
22:17 GargantuaSauce more like exactly the same
22:17 rue_more but noboady will come
22:18 rue_more they cant afford the gas
22:18 robotustra_ who "we"?
22:18 MrCurious U-Kraine is parked in my spot!
22:18 robotustra_ US? it's the weakest country in the world
22:19 rue_more BC640 Epitaxial
22:19 rue_more ^^^ THATS THE WORD!
22:19 rue_more its how you makea 1A bipolar in a to-92
22:20 GargantuaSauce fwiw it refers only to the manufacture technique and not to the nature of the junction or anything like that
22:20 rue_more dosnt matter its the word I'm looking for
22:20 MrCurious one big happy robo family...
22:20 rue_more I want to find a 7A Epitaxial
22:21 robotustra_ compare http://www.nasa.gov/sites/default/files/images/712129main_8247975848_88635d38a1_o.jpg and http://oriontitansgeography.weebly.com/uploads/7/9/8/6/7986504/9985998_orig.jpg
22:22 robotustra_ US doesn't even have central electric grid
22:22 robotustra_ it consists of 3 parts
22:22 GargantuaSauce once again your point eludes us
22:22 robotustra_ EU and former USSR - has unified grid
22:24 robotustra_ my point that after cold war - us started to degrade very fast
22:24 robotustra_ as well as USSR
22:24 robotustra_ USA
22:24 MrCurious rue_more: no more speaking in french!
22:25 robotustra_ people in USA still build houses of wood
22:25 rue_more 2sb1259
22:25 rue_more ^^^^ haha
22:25 robotustra_ which decay in 20-30 years
22:25 rue_more I think thats what I want...
22:25 rue_more damnit, 1.5V vsat...
22:25 robotustra_ and people have to pay for it whole life mortgage
22:26 robotustra_ and when they finally "buy" the house it's already TRASH
22:26 robotustra_ Tell me where I'm wrong?
22:26 GargantuaSauce still not seeing a point
22:26 rue_more the crime is the mortguage
22:27 robotustra_ it's your problem kid, not mine
22:27 robotustra_ If you don't see the point you are either stupid or BANKs system has you
22:27 MrCurious how bout the 100 year old wood houses
22:27 GargantuaSauce it sounds like you're mindlessly spewing anti-american garbage like some finnish teenager in a youtube comment
22:27 MrCurious or the 200 year old ones
22:28 rue_more so even an elipaxial is over 1Vce(sat)
22:28 MrCurious I HATE EVERYONE! I VOTED FOR NADER!
22:28 rue_more that puts me back up to 5W on my smps
22:28 robotustra_ ok
22:28 robotustra_ forget
22:28 rue_more I voted for Kodos
22:28 rue_more I dont like the look of Kang
22:28 GargantuaSauce i mean sure i don't disagree that those dumb aspects to the culture and economics are present
22:28 GargantuaSauce but why rail on about them, what is it going to do?
22:29 GargantuaSauce you still participate in the economy
22:29 GargantuaSauce you still provide your capital to the same banking system
22:29 rue_more maybe I should work out what kinda dropout I'm trying to improve on
22:30 rue_more cause, this "no" dropout dc-dc isn't getting me far
22:31 MrCurious we are doomed until we put down our dated ways and live as if we were in the star trek universe
22:33 rue_more 2sa1492.pdf
22:33 rue_more ooo chart shows .2V at 5A
22:37 orlock The wooden houses are even older than that
22:37 orlock but they were not houses the whole time
22:39 MrCurious we should go back to mud huts!
22:39 MrCurious and caves
22:41 armyofevilrobots mud huts are quite nice. They have thermal mass.
22:47 Faek Ahdisdhiaksfhi
22:49 rue_more paralleling 2 tip42 looks good
22:50 rue_more 600mA drive
22:50 rue_more puts out
22:51 rue_more 1.2W just from drive heat
22:51 rue_more 3W loss main power switching
22:52 rue_more almost 150mR fet equiv :(
22:52 GargantuaSauce isn't putting transistors in parallel a bad idea
22:53 GargantuaSauce like they have a negative temperature coefficient?
23:13 MrCurious well seems my nas power supply has just given up the ghost
23:13 MrCurious upside, room is lovely quiet now
23:19 rue_shop3 try the other provider, my old one stalls and sputters around 8:00pm
23:25 GargantuaSauce allllrighty, hexapod reassembled
23:25 GargantuaSauce software tomorrow
23:39 rue_shop3 lets see!
23:46 GargantuaSauce it looks the same as before
23:46 GargantuaSauce one servo just has much less burnt guts
23:47 GargantuaSauce and my desk reeks of magic smoke and gross grease