Quote:
Originally Posted by Jonathan Moore
J
The polyurethane, release agent and vacuum chamber are all currently in bound, all I have to do before commencing the casting is to shot blast the hubs and add some extra bands around the outside of the hubs to increase the surface area so that the tyres have a bigger area to bond to.
Jon
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Have you given any thought to adding vanes or fins to the hub to key into the "body" of urethane? Not making any claims that they should be there, but they would reduce the propensity for the urethane to shear off the hub. Fine line, of course, as too much would reduce the elasticity and absorbtion of the urethane.