Boston Model 19 Pencil Sharpener Gear for 10mm Shaft

thingiverse

[brianwsimms's gear](https://www.thingiverse.com/thing:267626) did not fit the Model 19 sharpener I was working with. The slot was too short and too wide. I modified it for a shaft with a diameter of 10mm and whose slot is 6.82mm wide. The hub was also made thinner to avoid rubbing on the motor winding. Each of the STL files have a different tolerance. This is the how much the shaft opening is enlarged in the STL file. Bigger tolerances are looser on the shaft. For example, the 0.1mm tolerance file actually has a slot length of 10.2mm. In my case, I printed the 0.15 tolerance file to get a press fit onto the shaft. Fusion360 link (download or edit CAD model): https://a360.co/2qPblY4 The print tolerance is a model parameter. Using Fusion360 to edit is recommended because the model contains a B-rep body converted from the original mesh. Therefore, this part does not seem to export correctly into STEP or other solid-modelling CAD files.