#robotics Logs

Nov 02 2015

07:01 SolarNRG got a question
07:22 Tom_itx ask
07:56 veverak hmm
08:09 deshipu I know how to solder and how to friction-weld plastic
08:10 veverak dremel!
08:10 veverak :)
08:11 deshipu ok, and glass
08:11 deshipu I know how to weld glass with a gas torch
08:15 veverak nah
08:15 verak is thinking about how to handle horn arms in lib
08:16 veverak define specific horn for each servo seems shitty to me
08:16 veverak more like separate db. of horns and point from servos to that
08:16 deshipu also, the arm sizes differ even for the same model of servo
08:16 veverak ?
08:17 veverak you mean that if you buy one model of servo, there isreal chance you will receive different horn each time?
08:17 veverak nah
08:18 deshipu yes
08:18 deshipu at least with the cheap blue SG90 ones
08:18 veverak fuck them all
08:18 veverak :)
08:18 veverak nah, that makes sense
08:18 deshipu in the ass
08:19 veverak so far
08:19 veverak I was OK with every DB being list of configurations
08:19 veverak with this seems like I will move to tree-like
08:20 veverak or
08:20 deshipu a lattice ;)
08:21 deshipu or just a full bi-directional graph
08:21 deshipu ;)
08:21 verak always wanted to implement dijskra for such th
08:21 deshipu with cycles
08:21 veverak you know
08:21 veverak just for fun
08:21 veverak deshipu: negative ones!
08:25 veverak fuck the systen
08:26 veverak db of servo horns
08:26 veverak and in db of servos, each servo points to list of horns you SHOULD get when you buy it
08:28 deshipu veverak: I would rather have several common horn shapes and parametrize them
08:28 deshipu veverak: no sense to make a db
08:28 veverak well
08:28 veverak the system is designed in a way
08:28 veverak "create <object> with params <kwargs> and fill rest from DB"
08:30 veverak of course, by standart, each object can be created based on your wish without touchin DB at all
08:30 veverak nah, true, servo horns will be just bunch of objects to create horns with 'sane' default values
08:53 Snert spline counts vary amongst servo arms, leads to different shape drive hubs at the arm center.
08:53 Snert give up.
09:02 veverak http://imgur.com/GcN7k1k
09:02 veverak got basic horn generator
09:02 veverak should be good enough
09:03 veverak but nah, 15 arguments?
09:03 verak again did something wrong m
09:05 robopal what is all this about? are you making some software for roboticists?
09:06 verak got his python cadl ibrary (just exports to S
09:06 veverak aaaaaand overhaul of some things?
09:30 deshipu overhaul all the things
09:31 deshipu down with the establishment!
09:31 veverak deshipu: for that we need more tote robots
09:31 veverak wich backdoors
09:31 veverak and one day
09:31 veverak you will just flip the switch for apocalypse!
09:32 deshipu straight to the moon
09:32 veverak http://tote.readthedocs.org/en/latest/ik.html
09:32 veverak you mistified me
09:32 veverak on real thing 'coxa' servo is 90 degrees on z axis!
09:32 veverak :)
09:32 veverak (speaking about the picture)
09:33 deshipu je ne regrete rien!
09:33 deshipu vivre la revolution!
09:33 veverak ah
09:34 verak almost fired up transl
09:36 deshipu transalteur
09:58 veverak omfg
09:58 veverak SG90 body is not perfectly square
09:58 veverak !!! :)
10:00 rue_house heh
10:01 rue_house re-assemble one atom-by-atom in the perfect shape
10:01 veverak sounds like challeng
10:01 veverak e
10:01 SolarNRG any of you guys played infinifactory? that game gave me some real ideas in terms of robotics
11:09 veverak https://youtu.be/If3FTyYxuu4 I can haz animations
11:09 veverak but have to figure out different angle
11:12 mbrumlow back on line! http://pluto.brumtopia.com:8080/indexl.html
11:23 anonnumberanon mbrumlow, this is awesome
11:24 veverak lol
11:24 deshipu where is the death ray trigger?
11:25 anonnumberanon im going for a run
11:25 anonnumberanon escaping
11:27 deshipu oh no, a bearded man, run!
11:27 anonnumberanon does he not see me? like..
11:29 deshipu release neurotoxin
11:29 anonnumberanon i can't!
11:30 anonnumberanon ah, a butt
11:30 anonnumberanon wow
11:31 deshipu a weapon!
11:31 deshipu use it!
11:31 deshipu push the reset button on his computer!
11:35 veverak lol
11:35 veverak anonnumberanon: give it some scissors
11:35 veverak so you can you know... the cables ..
11:35 veverak or you can include a hamster to do the job
11:36 anonnumberanon that offic wasn't too interesting except for the nerf gun
11:39 deshipu close the door
11:40 anonnumberanon Man I think I had quite a proper run as a robot controller.
11:44 deshipu hmm, why don't we have fusion reactors on the oribit?
11:45 deshipu the vacuum would make it easier to maintain the plasma, no?
11:46 anonnumberanon These guys in the offic look like dads.
11:56 veverak deshipu: nobody willing to lift the entire thing?
12:18 norias hi
12:24 maiden any one knows any cheap 3-axis Force/Torque sensors? ( != an accelerometer)
12:38 SpeedEvil maiden: for what?
13:47 Hyratel did maiden leave?
13:47 Hyratel oh, guess so
13:47 Tom_itx * maiden has quit IRC (Ping timeout: 260 seconds)
13:47 Tom_itx not intentionally
14:02 puddinghead Is Yoky Matsuoka still a professor at the University of Washington?
14:08 eedEvil wonders what they meant with the sensor quest
15:21 norias hmm, i'm still logged in here
15:22 SpeedEvil no
15:22 norias bummer
16:05 maiden *ohmmm*
16:15 SpeedEvil maiden: what for?
16:37 maiden compiling :D
16:37 SpeedEvil 'any one knows any cheap 3-axis Force/Torque sensors? ( != an accelerometer)
16:37 maiden ah
16:37 maiden humanoid robot
16:38 maiden to the ankle
16:38 maiden but i will go with 4x load sensors in the foot and then a MPU-6050 above the ankle
16:39 SpeedEvil Do you mean torque, or angle?
16:39 maiden torque
16:39 maiden the load on the joint
16:39 SpeedEvil load cells in the foot may be reasonable
16:39 SpeedEvil or strain guages on the leg
16:41 maiden I am trying to build a really really cheap 1:1 humanoid/biped. aiming for 120$ for 2x legs and hip. i will probably land on 150$ or more...
16:41 deshipu how do you call those strange bolts-spacers that they often use for separating boards of acrylic in rpi cases?
16:41 deshipu they have a bolt at one side, and a nut at the other, and are hexagonal
16:43 mbrumlow hmm
16:43 mbrumlow I show that somebody said my name, but I can't find it in the history, oh well.
16:43 veverak deshipu: "spacer"
16:44 veverak versions are: nutxnut
16:44 veverak nut/nut
16:44 veverak nut/screw
16:44 veverak screw/screw
16:44 deshipu veverak: thanks
16:45 veverak not sure if "screw" is exact term used though
16:45 veverak maybe nut/thread ?
16:45 veverak http://www.aliexpress.com/store/product/M3-Brass-Spacer-Standoff-Screw-Nut-Assortment-Kit/428750_1380455449.html#!
16:46 deshipu "bolt"
16:50 Loshki 8:58 AM: <anonnumberanon> mbrumlow, this is awesome
16:57 maiden yey!! just got ROS running on ubuntu 15.10 :D
16:57 maiden \join #ROS
17:02 veverak nice
17:13 anonnumberanon Well, I got my robot's power supply. Let's get to the programming now.
17:22 slidercrank he who'll manage to assemble a female cyborg (as a replacement for a human being, a gf) will become rich
17:22 SpeedEvil Or who can teach sheep to cook.
17:24 slidercrank heh
17:43 anonnumberanon I want to learn how to cook lamb.
18:03 Snert_ on the hoof, or store bought
18:16 SpeedEvil I want to teach lamb how to cook.
18:16 SpeedEvil That seems more fun.
18:21 anonnumberanon non-sense
18:27 ace4016 lol