Need for speed

Experiments with my 3kg sumo robot Parazit, loser of All-Japan Robot Sumo Tournament 2010.
6S lipo (25Volts) and still too slow for Japan...

Category:

Science & Technology

Tags:

• sumo
• robot
• japan

[chavareyes2003]

nice upgrade from master of disaster to this one!! congrats

are you still using ultrasonics?

[rodman777]

@chavareyes2003

noway, utrasonics are too slow, 30-50ms refresh rate. I use industrial laser/infrared sensors with refresh time 0.5-1ms

[chochueno]

Does your robot use magnets? very nice

[rodman777]

@chochueno

it uses two magnets, each 50kg pulling force, total ~100kg.

[GAPSNA]

Wow, rodman, im so happy you will go to the 2011 robogames, my team is coming too, we are finishing our sumo robot. See you there.

[rodman777]

@turokgt

maxon 150Watt dc

[turokgt]

@rodman777 thank's for the tip of the sensors, and what type of motors uses in your robot, because i dont see motors so fast as these, and that can be boost the voltage to 25 volts. i don´t believe that your motors are of 24 volts. can you give me some reference of motors in particular?

[rodman777]

@turokgt

japanese robots can run up to 5 meters per second. their line sensors look ~10cm ahead of the robot. my robot have line sensors under the blade, but motors are so powerful and magnets are so strong, that it can turn by the line at full speed, which is ~2.5 meters per second.

[rodman777]

@dragonet80

you are right. but my gears and chassis cost much more than lipo battery. so it is easier (and cheaper) to increase speed by increasing voltage. of course, for my next robot i will use lower gear ratio.