I'm trying to come up with a way to easily cut out disks of Lexan to a given diameter.

A fly cutter would be ideal...but I don't want the center hole that a fly cutter normally produces. I want to end up with an unblemished disk of clear plastic. This isn't a standard size, so a hole saw won't work. And since the disks are to fit existing holders, a reasonable amount of precision is needed.

The only thing that comes to mind is to clamp down the plastic and use the fly cutter without the pilot drill. Any other ideas?

Ron Wanttaja