On 31 Aug 2017 11:13:25 GMT, the renowned Jasen Betts
wrote:

On 2017-08-30, Dave M wrote:
Anyone have experience in accurately cutting 1/8" thick acrylic Plexiglas
(Perspex) for LED displays?

I need to make filters for some panel meters of my own design, but am having
trouble finding off-the-shelf bezels and filters of the sizes I need.
Before everyone tells me that there are cheap Chinese panel meters available
on the web, I already know about them. My meters are for a unique
application and the available digital panel meters can't be modified to fill
my needs. The display is the really unique part, and I need to make my own
filters for the displays. I need 3 different sizes; 1.25" x 2.5". 2.75" x 5"
and 4" x 5".

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.

use a drop saw instead.

You can cut 3mm acrylic with a fine (eg. 80 tooth on a 10") carbide
blade on a table saw. No problem- just don't push it through too fat.

Or use a CO2 laser in the 40W range with air assist.

Or use a small CNC engraver with 4-flute mill.

--sp

--
Best regards,
Spehro Pefhany