... Nylon3) Aluminum, copper, zinc,Brass, stainless steel,sheet metalFunctions of prototype(1) Inspecting layout Prototype is visible ... complicated and large-size sheet metal components3) Sheet metal forming for complicated and large-size sheet metal components4) Lathe for standoff ... cavity inserts, thermoforming, blow molding, and various metal casting processes. **Key benefits of Stereo lithography Rapid ...