Why would you want to weight the wheels of a Pinewood Derby car? Adding
weight at their periphery will increase the rotational inertial of the
wheels, and they will accelerate more SLOWLY than unweighted wheels. Just
the opposite of what you want. But I may be missing something...

--
Bob (Chief Pilot, White Knuckle Airways)



"tillius" wrote in message
ups.com...
I need to make some custom shaped lead weights that must be balanced
and fit precisely inside a small plastic wheel, the kind you might find
on a pinebox derby car.