Roomba Side-brush Module Upgrade

After having replaced my side-brush module, and then having the brushes break, then replacing the brushes with a TPU brush and having it strip out on the hex mount... I decided to reengineer a bit of it. This version allows for the TPU brush with a larger splined shaft to prevent strip out. It also includes a new replacement gear with the splined shaft. Last, it includes the cover with enlarged opening to accommodate the larger shaft. The replacement cover was necessary because mine shattered and the gear rides in a little shelf area with in the gearbox. The collar is used to offset the driving gear from the up conversion gear, so they don't rub. Make sure to use some grease to prevent friction and prevent parts from failing.

Also included in a hex to spline adapter. You may need to adjust your printer settings to get a more precise printing for the corners. FDM printers tend to struggle with this.

The brush with a spline fitting can be found here: https://www.thingiverse.com/thing: