Filamentsensor cover for Prusa i3 MK3

This is a cover for the top section of the extruder. It is designed to protect the optical filament sensor from light.

The LED lighting i have installed on the frame above the extruder disturbed the optical filament sensor and i encountered false alarms.

The printer paused and ejected filament randomly when the light was switched on while printing. The sensor does not like extreme lighting conditions such as direct sunlight or LED lighting.