I am building a new observatory and since it is located 200km from home I had to build/buy many new components to add some ensure redundancy. For remote operations, comes close to Voyager/Viking/Dragscript.
Since I want to keep my optics as clean as possible I designed and built a motorized dust cap. All the components are easy to source and the cap and bracket can be 3d printed. This cap is designed for a TOA150 and I am working on the FSQ106 version, I also plan to build another one for a RASA11.
I still need to modify the motor bracket to accommodate the Arduino nano, but that should be easy.
The servo motor is driven by an Arduino that runs an extended version of ArduinoLightbox project.
I will release the cap and bracket STL files in Thingiverse and the patched version of ArduinoLightbox in gitlab.
If you are interested in building a cap based on these ideas let me know and I will share Fusion 360 CAD files.