While building my Sphinx 55, I was looking at the motor connections & realized I could make covers for these. They clip into place covering the top & sides on the connections. This gives a little more protection to the lead screw & coupling & also allows you to use a colored plastic to add more character to your machine. I added the Sphinx logo to mine, but also have an option for no logo or a couple of different openbuilds logos. There is an openscad source file that you can edit.
Openbuilds End Motor Mount Cover 2018-12-18
Plastic part to cover for with 49mm Extended Motor Connection