I originally designed this cover for my niece and for my own kids. We both have the Blueair 511 air filter, and the bright status light made it hard to keep their rooms dark at night. This simple puck-style cap blocks the light completely, and it’s easy to pop on or off without affecting the purifier.

I designed this 12" ruler holder for the standard Gridfinity system because I couldn't find a model that was efficient with filament usage. This design minimizes material while maintaining functionality, making it a great addition to any organized workspace. Optimized for low filament usage Compatible with most 12" rulers Works seamlessly with standard Gridfinity layouts Let me know if you have any suggestions or improvements. Happy printing!