This is a file for making a push and pull rotary encoder. Needed: Rotary encoder, 2 tactile push buttons, 1 knob. You need to first install 2 push buttons on the inside of the extruding walls. Then install a rotary encoder on one end and then close it.
Layer height: 0.2mm
Nozzle: 0.4mm
Raft: recommended but not required(required for stick)
Supports: No on stick, yes on Housing
The author hasn't provided the model origin yet.