Hub for the wheel, machined by Rob Purdy. It splits in half and clamps onto the shaft. Even still it wasn't enough to hold on to the shaft, and slipped during testing. I solved the problem by drilling a hole through it all and putting in a spring pin.

Death By Translation is a 30 pound featherweight bot. This is my first bot that I have built as a team effort. Rich Olson has spent years developing this concept in smaller weight classes, so I approached him about doing the electronics for a larger bot. He stepped up and put a lot of effort into DBT, developing a new custom board for it and special software tweaks.

The bot has only one tooth. The tooth is 1/2" S7 tool steel and weighs 2 pounds!

Outer ring welded. This ring is made of 1/8" 4140 steel. The holes around the outside teeth allow the tooth to be mounted at different locations to accommodate damage or adjust balance.

Rich's custom board in its protective enclosure. Onboard is an accelerometer rated for 200 Gs and a Pololu microcontroller. The accelerometer measures the G-forces and figures out the rpm. The Pololu then figures out the proper time to turn the motor and LEDs on and off.

The S28-150 Magmotor is mounted with clamp-style mounts. The red stuff is adhesive-backed rubber to absorb some of the impact shock.

Death By Translation doing some last-minute testing before RoboGames 2009.