5mm Square T-Slot Pneumatic Cylinder Switches

I am trying to have a pin run along a slot in a hollow cylinder at a ~45 degree angle I need the outer and inner width to be the same to

slot configurations having reference slot locations 8 such that the overall drag of the system is zero is presented as

vintage slot machine EH 23110 Fixed Slot Tenons with cylindrical fastening

free slot play for fun Kich 80 mm Mortice Pin Cylinder Lock Slot & Knob, PCSNS80 Price on request