Talk:Digital lost wax for metal casting

To reclaim polystyrene foam for reforming as filament it must first be ground into small particles.

Design Objectives - Inexpensive, commonly available and mechanically simple components. - Able to use a variety of power sources

Currently exploring a keyed 5/8" shaft on pillow bearings with 7 1/2" circular saw blades stacked on it. A stepped pulley enables speed changes for a variety of materials. The drive motor can be electric, gasoline, diesel... anything that will drive the belt. A housing will be constructed of 3/4" plywood to guard the user from the blades and create a hopper for materials. A collection bag may be attached underneath to collect shredded material.