Cutting plexiglass
I'd second the table saw method. I've never
had much luck with other methods. (I don't
switch blades. I just use a fine-cut carbibe
blade (60+teeth) for everything. One caveat,
though: The saw blade will melt the plastic a
bit and release fumes. I really don't know how
toxic those fumes might be. Best to have ventilation.
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