On Saturday, March 8, 2014 8:54:35 AM UTC-5, Mayayana wrote:
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.

The score method works ok if you score both sides at the same spot.