#robotics Logs

Nov 28 2014

00:05 GuShH http://imgur.com/gallery/yN3F707
00:10 rue_bed hahah
00:10 rue_bed 1994 isn't vintage
00:16 rue_bed hmm, oops
00:17 rue_bed I wonder what G forces a sat like that is rated for
00:23 rue_bed http://www.ebay.com/itm/Motoman-SK16-Robot-with-Yasnac-MRC-Controller-MRC-Teach-Pendent-and-cables-/360817025687
00:23 rue_bed huh
00:24 rue_bed I cant find a lot about those robot arms
00:24 rue_bed it looks more like they are classed as cnc mahcines
00:25 rue_bed Mr_Sheesh, must have said motoman on it
00:26 rue_bed mrdata, even
00:28 rue_bed SK6 MRC brings up all the right stuff
00:29 mrdata very similar to that, yes
00:29 rue_bed it seems its a motoman SK6
00:30 mrdata yes
00:30 rue_bed http://www.used-robots.com/motoman/used-sk6
00:30 rue_bed http://www.robots.com/motoman/sk6
00:31 rue_bed http://www.robotflashnews.com/articles/MOTOMAN_SK6-19.html
00:33 rue_bed its not balanced tho, prolly wear out fast
00:33 rue_bed the ABB design is better
00:33 rue_bed just sayin
00:34 mrdata ?
00:34 mrdata what does "ABB design" mean?
00:38 rue_bed google ABB robot
00:40 mrdata hmm
00:40 mrdata if you could condense all the marketing buzz into a nice one line definition that would help
00:41 mrdata what would make the motoman sk6 wear out?
00:42 rue_bed use
00:42 rue_bed its not counterweighted
00:42 rue_bed so its always holding itself up
00:42 rue_bed ABB robots are built to hold themselfs up with no motor power
00:42 mrdata oh
00:43 mrdata thats not really obvious
00:43 rue_bed so the motors only have to move the robots inertia and its workpeice
00:43 rue_bed that motoman would have lots of stress on the drive system all the time
00:45 mrdata http://new.abb.com/products/robotics/industrial-robots more obvbious on some models i guess
00:45 rue_bed yup
00:46 rue_bed so do they have the motoman set up yet?
00:46 mrdata i havent seen it run yet
00:46 rue_bed is it plugged in?
00:46 mrdata they basically just wheeled it in a few days ago
00:46 mrdata idk
01:01 rue_bed oh
01:11 mrdata yeah, the ones that have fairly low payload mass like this one (6 or 8 kg) dont have counterweights; unlike the heavy duty ones that can lift 100 to 300 kg
02:03 orlock rue: http://dark.crypt.net.au/Prusai3/
09:33 rue_more looks like the perspex will need to be soaked in alcohol to get the paper off
09:33 rue_more hahah is all the threaded rod metric!?
09:33 rue_more ooo nice roll of kapton
09:37 rue_more ah UU8 good good
09:45 rue_more static sensitive switches, huh
09:45 rue_more ;)
13:23 GuShH https://www.youtube.com/watch?v=Y1bvyFG3hWM
13:29 deshipu this channel should really be called #latches
13:30 GuShH you mean lathes
13:30 ShH wonders how deshipu copes without machi
13:30 deshipu I make things small enough to not require steelworking
13:31 deshipu I do have a dremel, though
13:31 GuShH that is just a very old watch makers lathe, it costs a small fortune
13:31 deshipu but I'm more intested in things I make with it, than itself
13:31 ShH hardly uses the dremel at
13:32 GuShH sometimes to debur a hole in sheet metal
13:32 deshipu I use it all the time, the drill is too big and noisy for the kind of stuff I do
13:33 deshipu I have a diamond disk thing, for cutting
13:33 deshipu for that dremel
13:33 GuShH isn't that noisy? heh
13:34 deshipu so whenever I need to cut a pcb or file something...
13:34 deshipu not so much
13:34 deshipu like a dentist drill, pretty much
13:36 GuShH rue_more: notice the banjo with the reverse gears heh, also everything is cam lock
14:45 anonnumberanon I've just received an XV11 in the mail.
14:58 chris_99 heh, i've got one of those too anonnumberanon, planning on doing SLAM?
15:06 anonnumberanon that's the idea, the terrifying, exciting idea
15:07 anonnumberanon im taking it apart is yours still complete?
15:20 chris_99 well i just have lidar part, if that's what you mean
15:20 chris_99 i haven't used it yet though
15:20 chris_99 apparently it uses parallax
15:48 Loshki First step is adding wifi to my xv11 & do remote slam. Then I'd like to add neato navigation to a scooba. Introducing the "Scumbeato": all the noise, all the wetness, none of the randomness...
16:20 anonnumberanon that unit is heavy. at lest 300gr
16:23 anonnumberanon this much harder to keep the flying happening
16:49 chris_99 flying?
16:58 anonnumberanon hopefully dude
16:58 anonnumberanon if my colleagues can get off their asses and build a proper gyroscope/accelerometer setup
17:07 chris_99 you're putting it on a quadcopter?
17:07 chris_99 or plane?
17:15 anonnumberanon quadcopter
17:15 Loshki I can't see it surviving the first crash, but you know how I feel already about that.
17:16 anonnumberanon No I don't please share.
17:16 anonnumberanon Wait, do you want me to make a quadcopter on wheels?
17:17 Loshki IIRC, you were planning on mounting a neato 'lidar' on a flying vehicle?
17:17 anonnumberanon >can still crash heh
17:17 anonnumberanon yeah
17:19 Loshki Well, they're pretty robust e.g. they survive as vacuum cleaners, lots of vibration, dirt & dust, but I've also read at of least one that required realignment. I'm not sure how many hard knocks it can take. I mentioned this when it first came up.
17:20 anonnumberanon I'll be extra careful.
17:20 Loshki anonnumberanon: might wanna have a plan 'B' if it comes to a demo.
17:20 anonnumberanon Being autonomous means that it should never crash.
17:21 anonnumberanon Meaning, that first it will be tested for stability and if that works well the lidar will be added to it.
17:22 anonnumberanon Also, I have no choice! heh
17:25 Loshki No, being autonomous means it's under it's under own control. Nothing about being crashproof in the definition of autonomy :-)
17:26 anonnumberanon >removing human error
17:26 anonnumberanon At least we won't have to "learn how to pilot".
17:27 Loshki Removing human error is always a worthy goal. The google autonomous car is currently under repair after being involved in a collision. It was the other driver's fault :-)
17:29 Loshki At least we won't have to "learn how to pilot" -- unless it does automated learning too, isn't someone going to have to 'teach' it to fly, and debug the results?
17:32 deshipu it's always the other driver's fault
17:32 deshipu or more generally, human's fault
17:32 deshipu then again, it didn't dodge in time
17:32 anonnumberanon Loshki, math will teach it to fly, I hope. Algorithms.
17:33 anonnumberanon Sensors everywhere.
17:33 Loshki deshipu: Och, I canna change the laws of physics cap'n...
17:34 deshipu Loshki: they do in Hollywood!
17:34 deshipu if there was physics police, the people behind Interstellar would never leave the slammer
17:35 anonnumberanon And I never said I was emulating the new Tesla car..
17:35 anonnumberanon THAT one is impressive.
17:36 Loshki anonnumberanon: so what is that called, "the big data approach to autonomous flying". The thesis that with enough sensor data, the rest (whatever that is) is trivial?
17:39 anonnumberanon How do you usually make your drones stay operational? (i.e no crashy)
17:40 anonnumberanon Deliver all of the solutions.
17:41 Loshki deshipu: In a recent Gravity Falls episode, some stuff fell into a wormhole. The same stuff fell out of a wormhole in an episode of the completely unrelated show Rick & Morty that aired months ago on a different network entirely.
17:45 anonnumberanon cool deal: http://www.fischl.de/usbasp/
17:45 Loshki anonnumberanon: dunno, where is "Stable Drone Designs for Dummies" when you want it? No judgement intended.
17:52 anonnumberanon Yeah. They're all unstable, but this video displays a good one I believe: https://www.youtube.com/watch?v=N5q8b7U3sOA
17:52 deshipu in my limited experience, doing something with an ai instead of a honest to god algorithm is usually several orders of magnitude harder
17:52 deshipu by ai I mean learning algorithms
17:53 deshipu the only reason why we do it is that some things are not possible otherwise
17:54 anonnumberanon I don't think I'll be getting a lot of sleep in the next few months.
17:56 deshipu you will work more effectively when underslept?
18:00 Loshki Plenty of google hits on "stable drone design". How much of your design can be bought "off the shelf"?
18:05 anonnumberanon Probably 25% of it on a ~$300 budget
18:06 anonnumberanon gotta log out sound not working on this new Debian
18:09 anonnumberanon man I don't think I have time for Linux
18:10 anonnumberanon It's nothing but issues.
18:10 anonnumberanon Like I literally like troubleshooting but after these past three days it is getting a little old.
18:22 Loshki IMHO, Ubuntu has fewer bugs 'out of the box' if you run e.g. 12.04.4 LTS.
18:23 anonnumberanon Yes.
18:23 anonnumberanon Anyway I just fixed my sound.
18:23 anonnumberanon It's all good now.
18:24 anonnumberanon Gonna be able to watch the new Star Wars trailer and drool.
18:27 anonnumberanon I agree with 12.04.4 LTS
18:28 anonnumberanon It's nice. I run Debian 7 with XFCE.
18:29 Tom_itx not sure i like that front end as well
18:31 anonnumberanon nothing is good enough for you
18:32 anonnumberanon what do you like?
18:33 Loshki I like fvwm, but it's got whiskers on it.
18:42 rue_more GuShH, get any assembly done?
18:47 anonnumberanon Tom_itx, are there apps on Linux you would recommend for robotics, EE, CE, Electronics?
18:59 rue_more whats CE?
19:00 anonnumberanon computer engineerign
19:03 rue_more "I figured since there is no rooom for chairs anyhow, I'd bring in one that dosn't fit"
19:03 anonnumberanon haha
19:04 anonnumberanon it's programming for non software engineers + some computer architecture that leads to no skills
19:04 anonnumberanon Unless you do purely CE, but it's usually paired with EE
19:05 rue_more are you talking about ladder logic?
19:22 Loshki anonnumberanon: you mean like the ROS stuff?
19:28 GuShH rue_more: asm or lathe question? lol
19:30 GuShH rue_more: primed it a bit, need to buy more paint supplies...
19:41 anonnumberanon rue_more, I don't know what that is actually. I only know what TTL is. And Boolean Algebra.
19:42 anonnumberanon Loshki, yes.
19:46 Loshki anonnumberanon: also www.openslam.org.
19:53 GuShH rue_more: current status http://imgur.com/kRRHtYe
19:54 GuShH will give it two thick prime coats, then clean it up, mask, sand and get working on the finishing paint but that can wait, I just want it primed so it won't rust
19:55 GuShH I need to take it apart next, the entire turret assembly is just sitting there, I can lift it up and remove it... the slide needs to be unbolted, then I can actually remove the other stuff and clean up / prime the bed and headstock
19:55 GuShH should look ok once it's finished, the filler primer helps to level out the surface if you apply two coats and sand in between
19:58 anonnumberanon ah thanks
20:06 GuShH rue_more: worst case scenario, using bondo is fine -- that is what they actually used when it was manufactured, it was much cheaper quicker and easier to do a quick cleanup of the castings and then finish them off with bondo / filler, instead of grinding all that iron, plus they could hide small defects.
20:06 GuShH heck china still does it
20:06 rue_more yea
20:07 rue_more my lthe has some filler in the inner corners
20:07 GuShH I used filler on the mill, no other way to get a smooth finish
20:08 GuShH I bet the really fancy/expensive british lathes with all those curves and rounded covers are also full of filler
20:08 GuShH covers/corners heh
20:20 monkers >_<
20:55 rue_more Tom_itx, did you ever get the SD card stuff working?
22:05 kurt Is there an IRC channel for image processing?
22:14 rue_more hmm
23:39 rue_more http://xkcd.com/1445/
23:47 ace4016 lol