Gear replacement for electric pencil sharpener
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Motor gear for Staples Model 34462 electric pencil sharpener.
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Updated at source:
Model information
- Source
- Printables
- Category
- Mechanical Parts
- License
- Creative Commons — Attribution
This fix was done for a local Repair Café.
This is a replacement gear that is press fit on the motor shaft of the pencil sharpener. The gear was generated using https://www.stlgears.com/generators/3dprint with the parameters in this screenshot:
a small offset of 2mm was added a recess on the bottom of that using OpenScad. The motor shaft requires a 2.5 mm diameter but the stlgears site does not properly generate an stl for this small a gear. So I needed to ream the inside hole with a 3/32 in drill. The gear can then be press fit into place.
The part is printed in PLA with a 0.15 mm layer height and a large brim.
This is a photo of the gear in place and covered with silicon grease.
