ken gibbs

Originally Posted by Phil Phelps

It's best to know if it's cast or extruded before drilling. You can use Rick's method for best results on either. Cell cast acrylic is much more heat tolerable. When using regular wood working drills and saws, extruded acrylic will melt and leave a rough edge. This is much more noticable when using drills and jig saws. When ever I'm forced to use a hole saw on extruded acrylic, I will make several plunges, about 1/16" with the drill press, allowing a little cooling time between cuts. I also

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