Based on Prusa MK3 R3 - updated Extruder with 40x40x20mm fan open Idler and improved airflow
thingiverse
This is based on the Prusa MK3 updated R3 (August 3, 2018) Extruder and has: - 40x40x20mm Fan mounted without losing print volume - Cooler Heatsink of Hotend due to improved airflow and more pressure - Cooler extruder motor as some air flows into the idler compartment - No heatcreep - More air, more pressure, still silent and same printvolume - Improved airflow by removing obstacles - Before and after measurement done with Flir heatcamera A BIG BIG thanks to the official Prusa design team for the R3 extruder design and for publishing the design files.
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