Prusa i3 Mk3s Cooling Fan Cover (Thin and Protective)

thingiverse

Prusa i3 Mk3s Cooling Fan Cover - This clever design shortens the x-axis by only 0.5mm. This innovative fan cover shields the fan from damage caused by Allen keys and other objects that can break them when you remove the extruder or adjust the idler's tension. I discovered this firsthand, as it was easy to accidentally hit the fan with my tool during these procedures. Fortunately, this protective covering prevents such mishaps while minimizing x-axis travel loss to just 0.5mm. The grills on this design are angled upwards to draw in cold air, but you can easily modify them to point downwards if you prefer by mirroring the design in your preferred slicer software. I printed this cover using HIPS, but it's perfectly fine to use PLA or PETG instead - the choice is yours!