Tips on cutting hole in Plexiglass?

[kulangflow]

I'm modifying my son's wheelchair tray to accommodate a toy hanging arch I'm making out of PVC. It's not elaborate by any means, but I think he will love it.

I just cut the PVC, and I'll be bending it into an arch for the toys to hang from. This too is something I haven't done before, but it looks simple enough. Fill tight with sand, capping each end, hit it with the heat gun, then bend and cool. I'll be sure to post pictures when I'm done.

[J57ltr]

It's easier if you don't use a 118 degree bit since they tend to grab. It will work, but are you actually using plexiglass? I ask because a lot of people call every clear plastic plexiglass. For plastics I use 90 degree bits or for larger holes (1/2" or larger) use a Forstner but too keep it from cracking. We do lots of plastics from lexan to plexi to acrylic (the most difficult) and they work great on them.

Jeff