Let's Make Robots!
Just fixed some URLs to images, no real updates, this bloke has been disassembled for ages. This is my entry for the 2011 Swedish National Robitcs Championship. It … Read more
Push other robots ouf of the ring
Using a
This is Perfected Titan, my minisumo for this years Robot-SM. It's main controller is an Atmega328 running at 16MHz. The two motors are controlled via an L298N … Read more

Help me come up with a more clever way to detect opponents



I've built a minisumo-robot for a competition this saturday(http://www.robotchampion.se). It works quite ok, but I feel that my opponent detection is somewhat unoptimized.(Don't worry, I'll make a post with videos, pictures and such when the competition's over, no time for submissions right now, mah code needs optimizing!)

Right now I have two Sharp IR-sensors looking forward giving me a viewfield of about 120 degrees. I have an if-statement that turns left if the right sensor is closest and vice versa.

Pushes other robots out of the dohjo
Using a
Competition video added, some other nice bots in it as well:) This is my 3kg sumo robot for this years Robot SM(the swedish national championship in robotics). … Read more

Axle sizes

Hello fellow robot-builders!


For my next build it seems I migh have to do my own gearbox, I think I've worked out how to build it almost completely. The last issue I'm trying to figure out while I'm still in the planning stage is axles sizes and couplings. What is the best way to increase the diameter of an axle? Ideally, I shouldn't have to, but it all depends on what things I can get my hands on(I'm going for a one stage 30:1 reduction with a worm gear, since it doesn't take up much space and has builtin locking/braking).


Subsumption based robots

An awesome presentation on subsumption-based robots by David Andersson, it's a bit long, but it's totally worth it.


What range sensors should I use?

Hi fellow LMRians!


I'm starting work on a 3Kg sumobot quite soon(gathering parts at the moment, going to do it right and have everything before I start building this time).

Update: Finished second in the competition. Watch the videos for some action! This is my line follower, R.A.L.F, which stands for Really Awesome Line Follower. I … Read more

Gearing Up, FIRST robotics challenge

Found this while searching for documentaries about robots;

http://www.youtube.com/watch?v=vytVIv-Rbx4 Part 1

http://www.youtube.com/watch?v=Go7GW7ef2U4 Part 2

http://www.youtube.com/watch?v=PPgXdktfiFc Part 3

http://www.youtube.com/watch?v=RocQrZ3pZXk Part 4


It's about the FIRST robotics competition, quite interesting.