Let's Make Robots!

Sumo Bot V.2 aka Labotimize


photo.php?pid=157692&l=6a64c85704&id=1609273175Okay, The first one was okay, but in six weeks, I have to go to the West Point military academy and compete in four more events, one being Sumo Bots. "We can rebuild him, we have the technology" Construction for Labotimize begins today, Pics up tomorow, hopefully the La-bot-amy videos will be up tomorow also

RULES (more or less)

  1.  Wiegh under 2.5 Kg
  2. voltage must not exceed 18 volts
  3. robotmust fit in 30cm x 30 cm square
  4. must operate on at least 3 frequencies (we have 7 sets of crystals)
  5. competition is in a 4'x4' square


  • Lighter
  • more manuverable
  • MORE TOURQUE!!!!!!!!!!!!!!


396.89 grams each



After seeing these motors on the bot, I highly suggest you use these for a sumo bot. They are EASY to mount and have great speed and torque 



~34 grams


Total weight

2-12-09,  827.78 Grams


CONSTRUCTION IS FINISHED!!!! ITS AWSOME! Okay, so this bot will be used in the Mightybot Challenge and in the Science Olympiad Sumo Bot event in Westpoint New york in march, Today when we fired it up, we pushed 5 KILOS!!!!! THE BOT WIEGHS 1.6 kilos! so efficiency is about %320 efficiency I will post Pictures tomorow and a video link also. I'm pretty excited with this guy


Okay, states is over, final weight of bot...2.2 kilos, wieght pushed 11.2 lbs (5 kilos), so 119% efficient, poop

WE GOT 5th PLACE out of 54 Teams!!






 I want to see if any one can figure out the two things we did to reduce interfearance 

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Is "lighter" a good thing in sumo-bots? I've always thought you wanted them as heavy as possible (within the limits of course).

 / vzz-clck-"Maneuver"

well, it usually is, but in this competition, in the event of a stalemate, the lighter robot wins
you never said a weight restriction?


sorry, well the rules are here, so feel free to read, Ill post the highlights above
How are you going to switch frequencies with the sabertooth? To wire a motor from that thing one would just ignore the signal wire and wire - and + right?
No, we are using a futaba reciever (R132JE AM 27 MHz), we will feed the two channel outputs to the sabertooths channel 1 and 2 inputs, how else are we going to controll it? :P
Whoops, I forgot to look at the sabertooth documentation. I thought that there was a receiver built in for some reason. I was thinking of building a battlebot, where did you get your reciever and transmitter? 
The sabertooth is pretty pulg n play huh? well, they were on sale at a local r/c shop (dans crafts n things) for 40 bucks paired, if you want one theres one here, it comes with the transmitter, reciever, 2 servos, and a battery pack
Yeah, The saber tooth looks very easy to use. No complex motor drivers to make or anything,really. It looks awesome. And I think I may bid on that ebay auction
- A main image on this project would be REALLY nice!