Solidoodle Press 40mm Fan Duct attachment

This design directs not all, but part of the airflow to the extruder's tip.
Comes in a 3-piece print. Requires a permanent and reliable glue-joint assemble.
This design is yet to be tested out for its effectiveness.
Needs the http://www.thingiverse.com/thing:1024608 's bracket to secure the fan.