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I have started finished work on my second robot. It uses a FRED solar engine, and is a really simple circuit; I salvaged a belt and pulley from a cassette player, and I am using it as the body; The belt will be used as the back wheel. A pinch roller I found in the same cassette will be used as a front wheel. It has been soldered directly to the motor. This has proven ineffective because the wheel is delicate and never stays put. Instead, I used some 16 gauge solid core wire to poke ...
This is a companion discussion topic for the original entry at https://community.robotshop.com/index.php/robots/show/fred-solar-roller