Here you see the front view, without the circuit board or batteries attached. Normally my 'bots can't walk on my carpet, this one does, but only with these 'boots' on. Back feet just dig into the carpet nap and push ahead. Haven't tried the backup circuit yet and may change how the back feet are shaped. Left side view, with all attached.
Batteries are under the back gearset, held in with a rubber band.
Right side view, with all unattached. Rubber feet are on the front legs. It is a 6000mcd RED-LED, can't look into this one, it's that bright. It shines a moving spot out in front from it's 8 degree light cone. It pulses about 3Hz.