The current frame is CNC milled aluminum and consists of the following: Sixteen feet of 6"x2"x1/8" 6065 aluminum extruded rectangular tubing. Sixteen feet 1"x1"x1/4" 6061 aluminum channel. Eight feet 4"x1/4" 6061 aluminum flat stock. Five hundred M5x12mm stainless steel flat head machine screws. All metal purchased at Online Metals. The drive-train for each half of the vehicle is symmetric, so each half consists of the following: Eight square-flange ABEC-1 5/8" shaft diam. ball bearings with unnecessarily large continuous load rating of 2150lbs each. Four 11" 5/8"OD keyed shafts. 8 8mm pitch, 20mm belt-width HTD metric timing pulleys: 4 have 48 teeth, 4 have 24 teeth. 8 matching keyed quick-release taper-lock bushings. Size JA and SDS for small and large pulleys, respectively. 4 matching PowerGrip-GT2 timing belts with OD: 640mm, 720mm, 800mm, 1440mm. 8 matching mild steel undersized keys. 32 Grade 8 7/16"x1-1/2" Coarse hex cap bolt with matching nuts and washers. 2 8" aluminum core solid rubber wheels with 2 matching taper lock bushings per wheel. All materials purchased at McMaster-Carr. The source of power lies in the following: Two 12V Hawker-Genesis 26Ah Lead Acid Batteries connected in series. Two 24V, 3.86hp, 3840oz-in torque, 84% efficient Magmotor C40-300 DC motors. Two 18-48V, 320amp, 4QD-300 DC motor controllers Batteries and charger purchased from GotBatteries. Motors purchased from RobotBooks. Motor controllers purchased from 4QD, located in the United Kingdom. The control system: 9-channel programmable Futaba 9CAP airplane radio with included servos and receiver. Precision servos turn potentiometers which control output voltage of motor controllers. Radio purchased at TowerHobbies.   Back to Robot Parts

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