First off-- This not my design….

This a design by KeyM on thingiverse.com and i couldn't find a file on here for a 3mf. so I'm adding it. His licensing for this is listed as Creative commons-attribution. Please go check out his profile

Spring snap catch. This door stop allows you to keep your door open with a spring loaded catch.

Catch uses One 3/8" x ¾" compression spring.

Housing uses Four 3M x 30mm screws and nuts.

Assembly is as followed in the pics