Slip Clutch

thingiverse

This is an essentially 3D printed slip clutch setup, allowing users to drive something like an angle rod on window blinds with confidence, knowing they're shielded from the consequences of a potential jam. Alongside the required printed components, a cotter pin roughly 1.25" long or an equivalent length of approximately 2mm diameter rod are necessary, accompanied by a spring for adjustment purposes. To tweak tension levels, users simply need to switch to different sets of pre-drilled holes. The image in question showcases the setup from above, where the upper part is driven by a small motor and the lower section receives the blind control assembly (meaning the setup needs to be installed upside down compared to the given cutaway view). Considering the printing process, I recommend downloading the SCAD version directly from https://github.com/thatch/tim-open-things for greater ease of maintenance and updated compatibility. This approach also simplifies bug reporting and future updates.