I am a teacher investigating the building of roller coasters for
a high school tech class. The purpose of building the model is to
give the students a chance to see their designs and calculations
come to life and to have some experience using simple hand tools safely.
They will have approximately 5 hours of building time.
I have been playing around with:
foam pipe insulation for the track
a wooden board base (2' X 3')
marbles - ball bearings would be better - is there an ideal size?
I am looking for practical suggestions of construction techniques as well
as any ideas/materials for fun obstacles that could be added by the
Thanks very much