All things antweight
Way back at aws20 and 21 anticide had an axe. I used a large brushed motor and some mod 0.5gears. Original control.was a small.servo and micro switches. I changed this to a home made h bridge. But a scorp mini or decent servo board would definitely work. It was more useful as a grabber than an axe, so big batteries are needed.to stop everything getting too hot.