Annular Cooling for Prusa using 80mm fan
thingiverse
This design incorporates an 80mm fan attached to a printer rod and connected to the cooling duct via a vacuum hose. All components were printed with PLA. Replacing the two small belt-holding plates are tabs for easier installation. No heat issues have been encountered, possibly due to the air vortex formed between the fan duct and nozzle (simulated in the provided image, but not pictured). The model is based on 3dstuffmaker's Prusa design and offers improved airflow. Suitable for j-Heads up to MkIV; MkV compatibility can be achieved with longer bolts. The airflow simulation demonstrates a powerful stream between the vent, head, and carriage, which should effectively cool PLA during printing. Netfabb STL repair is available at http://cloud.netfabb.com.
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