I make what some call templates quite often, for almost all of my projects in fact, I call them masters myself. Others call them patterns, jigs, or whatever. I make mine from 1/2" plywood, then layer another piece of 1/2" onto that, then rout around them, making my masters 1" thick.
Do yours 'have' to be plexiglass?
"It ain't what you're told, it's what you know." - Granny Weatherwax
Fawkahwe tribal police SWAT Team
Some days, the supply of available curse words is insufficient to meet my demands.
.....Call me a craftsman, artisan, or artistic, and I will accept that. Call me an artist and you will likely get a quite rude comment in return. I am not a @#$%ing artist.