Students build rubber-band powered cars with simple steering. Lively insights into the mechanics, measurement and math of motion.
Parts

Apply a thin layer of glue to the base platform and smooth the clockwork diagram down over the top.


Apply glue to the inset cross and lay the indicated wood blocks in place.


Screw the screw-eyes into the small drilled holes on either side.

Hammer the long axle into one wheel and slide through the screw eyes. Hammer the opposite wheel on to the other end.


Insert the steering pin and front axle.


Attach the small guide wheel to the axle. Use rubber O-rings to keep it in place.

Tie two rubber bands together "lanyard style" to form the drive chain.




Run one looped end beneath the axle and attach in the same style. Be sure to pull it tight and secure the free end.



Insert the steering rod on the top and you're done!