Create a zero clearance throat plate for your Ridgid Table Saw, model R4512. Two bits are used, a 201 (1/4" flat endmill) and a 102 (1/8" flat endmill). You will be using a piece of 3/4" plywood. The piece that I used measured .73" with calipers. You will want to make sure that your material measures .73" or you will need to adjust cutting depths for all tool paths.
There are eight tool paths. I'll briefly explain them.