Polycarbonate formation with grill

We did not have an oven to distribute heat evenly, but with trial and error with the stainless steel grill we got it right. Best to have: 100% polyester felt plywood wood or metal blocks for height And wood to build the molds (we don't have a router so we made ours out of aluminum) Thanks to ePlastics for the information and http://www.plasticsmachining.com/maga...