Tips on cutting hole in Plexiglass?

[BrianG]

I guess I'm a bit paranoid, but I used a couple pieces of scrap 1/8" thick plywood and sandwiched the plexi in between using clamps. I figured it would reduce any stress. Turned out perfect, but tape probably would have been sufficient.

[_paralyzed_]

i use a drill

[JERRY2KONE]

Glad it worked out for you. Cutting plexi-glass is always a PITA. The tape method is about the best way to protect the project, and even that fails sometimes. Drilling very slowly is also a good technic but can be difficult depending on the type of drill bit used. A hole saw does not cause as much damage as you might think, and should go through the plexi fairly easy although it can leave the edges a little more rough. Plexi-glass used to be all the rave when it first came out, but the brittleness is really disappointing considering what it was meant to present in the way of durability. Lexan seems to be a much better choice. So what ya making anyway?