Had to design a mousetrap car for my engineering class, figured i might as well upload it. You'll notice there are slots for 2 mousetraps, this is because my car had to launch a nickel after reaching its destination (1 mousetrap for driving and 1 for launching nickel). Other parts needed string, axles and mousetraps.
When loading model scale should be correct, just change units to In (I had to do this on makerware). If need be i can upload .x3g files 5% fill. Raft helps for Chassis base, wheels, and both arms. Chassis base for bigger build plates Chassis base half for smaller build places Glue everything together I used JB weld