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Any kind of power tool will need special blades to cut plexi well.

Here for a jig saw:

Clean For Plexiglas - 3-Pack-T102BF at The Home Depot

Also be aware that the method of finishing the...

Also you can't use wood working tools for plexi. Check this vid out.

Dremel's No. 561 Multi-Purpose Bit - YouTube

Let's talk Sunday. I've made some scales with inexpensive wood that came out to varying degrees of success. Takes about about two to three hours before the finishing. I find getting the wedges and...