Makerlabs Sumobot is a forked open source sumobot design by [@makenai]. We kept the design similar but added a few new cut outs to allow some line sensors and a proximity sensor in the scoop. The Makerlabs Sumobot is intended to be a autonomous fighting bot, using it as a platform for other autonomous challenges like mazes.
If you're planning on laser cutting the bots, you should use the OpenSCAD source file to generate a cutting plan for your specific type of laser cutter and material thickness. There's a wiki article for that!
Laser Cutting with the OpenSCAD file
If you want to jump right into it, you can watch this instructional video, but note that you may not want to clip the wires if you plan to reuse the servos for something else:
Sumobot Jr Assembly video for Nodebots Day 7/27
IKEA-style Assembly Instruction Card
Frank Hunleth's Arduino Mini Shield
The main part of the design is a cutting sheet in EPS file format that is designed to be used with a laser cutter. You can find it in the cutting_plans directory. If you don't have a laser cutter, you can use a CNC, tape your printout to balsa wood and go at it with an x-acto knife, or send it to a laser cutting service like Ponoko and get the sheet done for about $10.
There is also a directory called 3d_print that contains an STL file for a ball caster designed by sliptonic - the STL is set up for a 16mm ball bearing, but you can make one for other sizes with the included OpenSCAD file.
Neither do I! The best way to get some help creating the parts is to look up your local Hackerspace or Makerspace and connect with them. Our Johannesburg makerspace called Makerlabs hosted at Made In Workshop
If you don't have a hackerspace nearby, you can also use a mail order service like Ponoko that does both 3D printing and laser cutting.
- Arduino - R189
- 4xAA battery holder - R18
- 2 Cable ties 4.7 x198mm works well Hellermann Tyton T50R - ?
- 5 3.0 x 12mm wood screws Eureka - ?
- Thick rubber bands [Croxley No 64] - ?
- 2 continuous servo motors Power AR-3606HB - R225
- Some wire or leads
- 16mm steel ball from a Bearing shop like BMG - ~R6
That's about it! Connect the red and black leads on the servos together, then connect them to the + and - terminals on the battery holder respectively. Then connect the black leads and - terminal to the ground of the Arduino. Finally, the white leads of each motor go to pins 9 and 10 (or whatever you like) on the Arduino - you're done!
To run the sample code. just upload any of the sketches in the code_examples/arduino folder
Robot Sumo league
illustrated Rules by Robot Room
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Design by @makenai with feedback and ideas from @noopkat aka (by their powers combined) Amalgamation of Cats.