>Just the aluminum @ 2.20/lb for a set of 120" wing molds would be around $2000
I assume this is for super-rigid molds cut from 1.5" plate. There's a better alternative. The molds can be intentionally "floppy", and then held against a flat surface when closing the mold during the final bond. Slight bending or twisting of the mold halves when molding each surface doesn't matter much. Such a mold could be machined out of 1/2" plate for the bottom, and 3/4" plate for the top. A 124" x 12" mold then works out to about 180 lb, or $400 for the aluminum. Plus you don't need a crane to move the thing around, since each mold half will be less than 40lb after machining. - Mark RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED]
