Name: 0_CNC_router_cutout.JPG Date: 2013 Aug 07 Size: 1.49MB ---------------- Material is 3_4 inch (19mm) Baltic birch plywood that comes as 60-inch square panels With careful nesting, I was able to cut parts for two 30-inch Sudiballs from a single sheet. Although I liked the `look` at the time, the tapered_pointed tips loose rigidity at low observing angles.