Pulley

thingiverse

<iframe width="560" height="315" src="https://www.youtube.com/embed/ZCNVJRmvXe0" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" allowfullscreen></iframe> <a href="https://jfs-agri.com/index.php/bubsbuilds-projects/assorted-hopefully-useful-stuff-projects/53-pulley-v1">I've written up some details on the design and assembly instructions here.</a> A pulley assembly I made for raising and lowering the lids on my resin printers, but turned into sort of a general purpose pulley for me :) The "single" housing has one mount point per housing, and the "dual" has two per and is also a bit sturdier in general with thicker feet also. The version shown in the video is the single, and it hasn't crashed down yet, but it does have a little bit of visible flex if the lid gets a bit stuck. The bearing races are integrated into the printed parts in the form of V-grooves, and the preload of the bearing is provided by diaphragm flexures built into the housings.