The Car Formerly Known as BOOM

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Design for the final car project for ENGRI 1170, intro to MechE at Cornell University. This car had to complete three tasks: a 12m speed test, a pulling force test (divided by the car's weight), and tug-of-war against other groups' designs. The design focused mainly on the latter two challenges, as cutouts in the frame allowed bolts to lock the wheels' axles while a low hook on a winch completed the pulling force and tug-of-war tasks. Though an unconventional and previously untested strategy for the competition, it proved to be incredibly effective, harassing the ridiculous coefficient of friction of Sorbothane to easily pull more force than any other car.The car itself is made out of laser cut acrylic and is held together by structural zip ties. The wheels are thing laser cut plywood lined with Sorbothane for traction.The external gears are 36 tooth VexPro gears which allowed for quickly swapping between powering a drive shaft and the winch during competition.