Prusa MK3 Y-Axis Belt Tensioner for Gates 20T Idler with 5mm Bore

Y-Axis belt tensioner for Prusa MK3. This is for a 20T Gates Idler with a 5mm bore. It's loosely based on MattyVee's excellent design, https://www.thingiverse.com/thing:2786671.

Items you'll need for this:

(1) Gates 20T idler with a 5mm bore
(1) 4.95'ish mm diameter shaft at 24mm long (opening is 24.5mm so 24mm works just fine
(2) M3 x 20mm socket head cap screws (1) for the pivot and (1) for the tensioner
(2) M3 x 8mm socket head cap screws to mount tensioner to the frame
(4) M3 hex n