I think cooling is important when cutting acrylic. I was making a jig on my scrollsaw the other day, cutting a piece of 1/4" acrylic. The blade is so fine and got so hot that the area where I cut melted back together as I went along. When I got to the end of the cut, the piece was still stuck together.
I put the piece on my tablesaw instead, and it made a hell of a mess with all the plastic shavings. Wish I had a bandsaw...
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