The chassis is made of 3/4" x 1.5" rectangular 4130 chromoly tubing, covered by 1/8" thick
5053-H32. The 3" diameter wheels are driven directly by 18V drill motors from Harbor Feight. The wedge exerts 100 lbs of force via a 4.8:1 dual chain and sprocket reduction driven by another drill motor. Top speed 8 mph. Wedgeward-ho has two extensions which help capture and move a ball or cone in the competition.