StepDown Regulator to 20mm Extrusion Mount and Case

I changed to a 24V power supply for the heated bed and still needed 12V for the RAMPS board.
So I tried these StepDown regulators and they work pretty fine for me.
This is a case for the StepDown regulator to protect the electronics from being shorted out and mount it to the 20mm extrusion of my HyperCube