Horizontal standing PS4 feet

I keep my PS4 on a shelf with height restrictions preventing it from being put on its side.
I noticed heat building up between the bottom of the PS4 and the shelf, near the back, so I printed corner feet to lift the case form the shelf and allow air flow under it.

It sits on these feet without adhesives, if you aren't moving it around, changing plugs etc, but I think some double-sided tape would help hold them in place if necessary.