I don’t think it would come as a surprise to anyone that I have enough of an interest in 3D printing that I had to find some excuse to try it. That excuse finally came when, as part of a larger project, I needed to create a gear box. Besides the obvious (gears, duh) I wanted a pulley system to turn a potentiometer. For fear of jinxing my project I don’t want to get into to much detail, yet. In the meantime, here is the first part of how I…