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And if you have troubles with cracks in your acrylic while making threating in it, for example with a m3 bolt in the side of a 5mm panel. Just rotate your screw quickly from left to right, and...

Just saw this topic, and maybe someone has mentioned it before, but acrylic wont melt while sawing it when you put masking tape (that tape looks like paper) on top of it. Don't know why, but it works...