This is the perfect project for someone with a lathe. A piece of Teflon, a couple of drill bits, a sharp cutting tool and 15 minutes- - - -no programming- - -problem solved. No need to get high tech!
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!