Pocket Operator Case with big square buttons

This is a Remix of crashdebug's pocket operator case. Thanks for his works.

I changed the button shape from circle to bigger square. The original diameter of the circle button is 6.5mm and my one is 8mm X 8mm. The button is 1.6 mm higher than the circle one. I think the up-down pressing feeling should be a little slightly loose so i add 0.2 mm and the pressing feeling is good now.

I canceled the light guide because I use transparent PETG to print the button with LED.