Tomy Dustbot SO-G front rubber gear replacement

A replacement for Dustbot's front rubber gear which drives arm movement.

Print Settings

Printer:

Rotrics DexArm

Supports:

No

Resolution: 

0.1

Infill:

100%

Filament:

PETG is recommended over PLA for durability.

Post-printing:

You may need to drill the center hole with a 2.5 or 3 mm drill if it fits too tightly over the pin. If so, drill from the top down for the cleanest result.

How I Designed This

Several teeth on my Dustbot's rubber gear were damaged, so I made this replacement. The gear is 3 mm high instead of the original 2 mm in case the bottom layers do not print well, and so they won't break as easily.

Since it is a plastic gear, it makes a bit more noise than the original, and it is a little more difficult to install: You have to lower the gear and motor simultaneously into their respective slots.

Alternatively, you could use this file to print a mold for casting a silicone gear.

The original gear, damaged.

Category: Robotics