Mouse Car: Son of Rat Racer

thingiverse

Create mousetrap accessories for a spring-loaded car by printing end caps, axles, and wheel pairs. This project requires a Victor brand mousetrap, although you can adjust the OpenSCAD source files to fit other sizes. Remove the "cheese platform" trigger and retaining bar from the base of the mousetrap, leaving only the spring-loaded U-bar. Attach end caps to the U-bar, followed by axles through each end cap. Secure wheels in place. Tie a string to the mousetrap's U-bar, then wind it around an axle. Place the car on the floor and rapidly release the U-bar to activate the spring mechanism, spinning the axle and wheels for motion. More details can be found on this blog post: http://netninja.com/2013/11/04/son-of-ratracer-mouse-car/. Download mousecar-src.zip for the OpenSCAD source files of all three components.