This isn't intended for use on its own, rather, it's intended to be subtracted (for example using OpenSCAD's "difference()" function) from a power button or power switch mounting plate or whatever you like.Diameter and Z height are adjustable in the scad. The sample STL is 10mm top to bottom and 0.5mm in Z height.
I'm a computer person who grew up on a farm. I enjoy all kinds of making. Programming, electronics design, rough carpentry, whatever.I am a mentor for FIRST Robotics FRC team 1502, "Technical Difficulties" at Chelsea High School.