I needed a smaller version of my star knob design for a new project ( see photos), and since I already had a good basic design I made a few modifications to create this smaller version.

Requires : ¼" or M6 hex nut.

Print Instructions

Print in PETG using the 3mf files provided; otherwise :

• 0.3mm layer height
• 15% grid infill
• 2 perimeters

Note that the knobs print with a sacrificial layer over the screw hole (to avoid the need for supports); simply use the ¼" or M6 screw to punch out this layer before inserting the appropriate hex nut into the hexagonal recess.

CAD

The OnShape 3D CAD files for this are here :

https://cad.onshape.com/documents/6ae8bcbe8963fe1a7881e8de/w/1a7c9941cae2f375f93845ee/e/2437d3d1c66de5154b694a0d?renderMode=0&uiState=658059ad62a2c63dbcc063d9