The file 'Logitech G25/27/29/920 Generic Gear Shifter Shaft M12x1.25 3D Printer Model' is (scad,stl) file type, size is 363.1KB.
DRAFT: I haven't fitted this myself yet as I'm awaiting for the appropriate tap.
This replaces the factory shaft assembly with an M12x1.25 pitch allowing you to fit generic gear knobs.
The entire shifter assembly will need dismantling in order to fit this.
You'll need to insert an M4x0.7mm helicoil insert tapped/placed inside of the hole in order for the locating dowel to fit.
Chase the thread with an M12x1.25 die before fitting knob.
gearKnobGenericAdaptorShaft.scad | 2.9KB | |
gearKnobGenericAdaptorShaft.stl | 1.3MB |