This is a helical compound gear replacement part for an X-acto Pencil Sharpener.

The smaller "spur" gear was completely sheared off and missing by the time I got my hands on it, so I had to make a more-educated-than-normal guess at its parameters.

FreeCAD source file included.

Here are the gear parameters:

6T Helical, -20-deg, module 0.75

35T Helical, -20-deg, module 0.526

Shaft hole 1.9mm (Shaft is measured at ~1.6mm)

Printed in PETG 0.16mm layer height on the Bambu Lab and it's holding up okay. Use at least 3 walls.

How I Designed This