In article ,
Dave M wrote:
Anyone have experience in accurately cutting 1/8" thick acrylic Plexiglas
(Perspex) for LED displays?

I've thought about using a table saw with a cabinet-grade finishing blade.
That's possible, but somewhat dangerous due to the small size of the
filters.

https://www.bobvila.com/articles/how.../#.WadJJnWGNo8

"For thicker sheets of plexiglass, cut with a power saw€”be it a
circular saw, saber saw, or table saw. (To cut anything but a straight
line, opt for a jigsaw.) No matter which type of saw you choose for
the task, its critically important to use the right blade. There are
special blades designed expressly for acrylic, but any metal-cutting
blade with carbide tips can do the trick. Before committing to one
blade or another, double-check that its teeth are evenly spaced, with
no rake, and of uniform height and shape."

For the size you're talking about, I'd think that a table-type
sabresaw or jigsaw (with a fence) would be what you'd want.

For a fancier approach - the MightyOhm geiger counter kit can be
purchased with a two-piece acrylic case, the upper sheet of which has
some custom cut-outs made for the tube and the batteries. Their web
page says that it's "laser cut". Maker shops may have suitable
laser-cutters for their members to use, and there are service
companies which will laser-cut-to-size in your choise of acrylic
types.