Prusa i3 Pro X Parasitic fan duct

This is a removable parasitic fan duct for the Prusa i3 Pro X (from Geeetech). It utilises the exhaust from the existing 40mm x 40mm fan on the extruder assembly.

Once installed, the part stays surprisingly cool to the touch so can be made from PLA and used in conjunction with a heated bed.

Note that the fan stays on 100% of the time but this piece can be removed in seconds when not needed. Great for leaving fan ports on your motherboard free.