The file 'Neje Laser Engraver Focus Knob 3D Printer Model' is (stl) file type, size is 645.0KB.
It's way easier to use bigger knob for setting laser's focus.
Designed and tested on Neje engraver (this model exactly), but should fit most laser diodes with 12mm brass knob.
Neje_laser_knob.stl | 1.9MB | |
Neje_laser_knob_lowpoly.stl | 326.7KB |