November 14, 2011
A top spinner can be made that uses a gear rack.
What does it take to make a good top?
It has to be balanced.
It can be big.
It can be small.
How long can you make it go?
6 groups made tops with simple machine sets.
One group make the WeDoTM machine to
spin the tops.
Here is the programmed version.
Here is a way to start the top by pulling.
A Jr. FLL team tried them out.
