Feeling Nutty

Made some thumb screw nut things for the furnace filter / air return door, since the originals were missing. Designed them pretty quickly and 3d printed them out.

The nut obviously threads onto the stud sticking out of the frame, and the magnet lets me stick the knob to the door while I'm wresting with getting the filter in and out. Both are pressed into place in the plastic, and ain't going nowhere any time soon.