Cutting Plexiglass (Perspex)
I've had a lot of trouble cutting acrylic on a table saw, or drilling.
The problem has been chipping on the back side. I haven't tried backing
it with a piece of wood - that should help.
What does work very well for giving a nice edge is a router. Not very
convenient for cutting into pieces, but nice for cutting shapes to a
template, or for finishing edges that have been cut with too much chipping.
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