After the second Regolith Challenge, rule changes (primarily the change from 150 watts to unlimited on-board battery supplied power) reduced the competitive value of BFD 3 which was designed around the 150 watt requirement. Brute Force was designed around a 900 watt rotary cutter with heritage back to our original BFD 1 design. The cutter was extraordinarily innovative in that it could cut efficiently in either direction. In addition, the mass conveyor went through the center of the cutter.
The onmi-directional drive wheels are sealed and powered from inside. The “ski lift” conveyor system allowed both horizontal and vertical mass transfer with near zero transition length.