Hi Michael T
To answer your questions, I set the coasters using a 60 deg V bit at 1/16"
and the 8 x8 the pattern is set at .200. The material is 3/8". I'm not sure it even Corian. It has some very funny writing on the back. It's forigen, but it carve so well. It seems to be harder than Corian.
I picked it up in Dallas and the sheets were 30" x 96". I had to cut them into just to bring them home.
All I know is I'm going to get some more on the next trip.
Myshop1044