Boston Model 19 Pencil Sharpener Gear for 10mm Shaft
thingiverse
I modified [Brianwsimms's gear](https://www.thingiverse.com/thing:267626) to fit my Model 19 sharpener. The slot was too short and wide for the original design, so I adjusted it to work with a 10mm diameter shaft and a 6.82mm wide slot. To avoid rubbing on the motor winding, I also made the hub thinner. Each STL file has a different tolerance setting. This refers to how much the shaft opening is enlarged in the STL file. A higher tolerance means a looser fit on the shaft. For example, the 0.1mm tolerance file actually has a slot length of 10.2mm. I printed the 0.15 tolerance file to get a press fit onto my shaft. You can download or edit the CAD model using Fusion360 from this link: https://a360.co/2qPblY4 The print tolerance is a model parameter that you can adjust in Fusion360. Editing the model in Fusion360 is recommended because it contains a B-rep body converted from the original mesh, which may not export correctly to STEP or other solid-modelling CAD files.
With this file you will be able to print Boston Model 19 Pencil Sharpener Gear for 10mm Shaft with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Boston Model 19 Pencil Sharpener Gear for 10mm Shaft.