printrbot jr v2 cooling fan duct

Cools the print and also directs some air at the heat break to reduce upward heat travel and jams.

3D printer parts and enhancements

Creative Commons Attribution Share Alike

Commercial use is allowed, you must attribute the creator, you may remix this work and the remixed work should be made available under this license.

Learn more or download attribution tags


 The duct end (barely) clears the build-platform adjustment nut when homing on my machine. If you're brave you could dive into the (really lousy) Openscad and make the duct a little lower and longer. But there's quite a bit of airflow even on the far side of the nozzle as it is. 

Also, the end of the heat-break duct may need trimming unless your printer is really good at overhangs.

Materials and methods

- pla
- abs
- socket-head caps screws (already present)
- openscad recent version (with offsets)
- fan mount library from



Issues are used to track todos, bugs or requests. To get started, you could create an issue.


Efe146d1547c08763c13ed56ef676579?default=blank&size=40Guillaume Ludwig added this to the Utile Imprimante collection ago
Mini bern ivyTaylor Street added this to the Printrbot - Accessories collection ago
Mini lunamoth4rp10007 published this design ago