Pinewood Derby Wheel Insertion Fixture

thingiverse

I made these for the local Cub Scout Pack, years ago. They make it *MUCH* easier to put the wheels and axles into the car. Once one side is done, flip the car over and put it back down on the table with those wheels inside the holes of the fixture. Now one can apply some force, without breaking things on a delicate car, when installing the remaining wheels This is for "standard wheelbase" cars where the slots are being used. It won't work well on cars with fenders, though.