Originally Posted by ufokillerz
i'm pretty sure it has to do with the way that your layers are glued together. i wouldn't take any risks at getting something snapped or broken.
That isn't the reason I did it surface mount, but that is a good point for anyone else who does a translam build like this. I did my first cut, the outer most ring, with a small 1/4" bit. It made a clean cut with no chipping or flaking of the plys. But I could see the possibility of part of a ply breaking off as the bit moves parallel with the layers. As I cut the inner rings with the 1/2" bit, and no outside support for the plys, pieces would break off in chunks near the top and bottom where the bit was moving parallel with the plys.