Clothes hanger hook for IKEA Ekeby shelves

A simple hook that can be pushed onto any 1" (2.5 cm) shelf edge. No screws are needed, so the installation is completely reversible.
My intended use was to hang clothes hangers under an IKEA Ekby shelf, but I guess you could hang anything from any 1" board.

Since you want the hooks to be sturdy, you want a high infill. I used 85% and my hooks seem pretty tough.
The hooks are somewhat over-sized, since I wanted to be able to use common PLA, rather than more high strength filaments (which ar