Remixed version of Chris' ThinkCentre Tiny shelf to accommodate the larger dimensions of the Mac Mini
Print with support enforcers over the front panel cutout, no supports otherwise. Split version should fit most standard printbeds in two pieces and can be assembled with standard fasteners (I used M3x12 screws and hex nuts.) Print with at least 20% infill and at least 2 perimeters.
(The middle rack in the picture is the most recent version of this model which covers the void under the Mac)
The author remixed this model.