I have uploaded some new parts for Mousetrap car building. These parts make assembling the traditional Balsa wood kit a simple, no mess task. Additionally it facilitates re-configuring the car for a complete learning experience.
The clips are designed to attach the plank to the side rails.
The Axle is designed to slide over the common Brass Axle provided in many kits. It is designed to be a snug fit, but if it works its way loose over the years a set screw can be used. The axle has a threaded hub for the CD Wheel Lug.
CD Wheel Bolt ( or Wheel Lug )
The CD Wheel Lug is designed to fit into the Hub by with threading. It has a detent to easly center and capture the CD. This elimantes most of the wobble in a poorly mounted CD. Whats best is the CD only comes off when you want.
Using these parts the instructor can easily re-use kits from one year to another and let students be creative without gluing thier fingers together.