The cutting blade is from an old fashioned scissor action push mower. It has been fitted with a chain driven electric motor and sprocket. The radio and receiver are torn from a small, cheap RC car from walmart and beefed up with Darlington transistors and 30A automotive relays. The rear wheels are separately powered by two electric motors geared down 20:1 to produce enough torque to climb a tree. The vehicle tips the scale at 100 lbs. Power is not an issue, traction is! Two 12v 17ah lead acid gel cells in series power this vehicle for well over an hour even with tall grass! I would love to adapt this thing to read and follow a GPS or a sensor array in the ground.
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2021-07-03