For anyone whose toying with the idea of making resin parts or bits.
Theres a great step by step guide on the alumite website on how to make moulds and casting.
making a mould -
http://www.alumilite.com/HowTos/SlotCarMold.cfm
casting with your mould
http://www.alumilite.com/HowTos/SlotCarCast.cfm