MK7 Extruder Fan Block blower

For use with Makerbots Mk7 stepstruder
though it might work with other setups.

This thing is designed to "capture" the fans excess blowing to cool the extruded material. The captured air is directed to the extruder tip and the surrounding area. This will "hopefully" allow higher quality prints and/or allow higher extruding temps with reduced sagging/slumping of the extruded material.

This should also reduce lifting prints as the temperature of the extruded material matches the surroun