Originally Posted by doodledee
Anyone have any tips for cutting plexiglass in a round shape to avoid those pesky chips?
I know to use blade with many teeth. I have a jigsaw and a dremel. I have cut rounds before and I usually use the jigsaw w/o rip fence because I can't find one for the jigsaw where I live. I leave a bit of space between the cut and desired edge and finish it out with a file to smooth out the edges. Hopefully someone has some better ideas.
I used a dremel with the multi-purpose cutting bit. It works fairly well but it's a pain as you have to keep stopping to clean the bit...the plexiglass melts as you cut and gums up the bit. Then I used the grinding thing that looks like a drum to fine tune the openings. I still had a tough time but I was doing straight cuts too, which seem harder to me than circular ones.
A band saw is supposed to work well, but I couldn't find the blades I needed for mine. Also a coping saw with as you said lots of fine teeth.
I think had I practiced more with the dremel before diving in, it might have been an easier go.