It should be printed twice, so one part can be mounted to the front and another one to the back. 3mm lip and holes for rubber feet help the stability. Unless you push it from the bottom, it stays perfectly in place. It has holes for 4mm screws with sink hole for 8mm 90deg screw head. I printed it in PET-G with fuzzy skin on the non functioning faces. I have also added a version with no dilatation if preferred.
The author marked this model as their own original creation.