E3D v6 Hotend - 40mm Fan Duct Laminar Flow (Improved airflow) by victornpb model
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E3D v6 Hotend - 40mm Fan Duct Laminar Flow (Improved airflow) by victornpb

E3D v6 Hotend - 40mm Fan Duct Laminar Flow (Improved airflow) by victornpb

by Thingiverse
Last crawled date: 3 years, 4 months ago
This design should improve extruder cooling by a few degrees, my goal was to make airflow better so I could decrease the extruder fan RPM to make it quieter.
I don't have any accurate way of measuring airflow, so instead I inserted a thermocouple sensor inside the extruder tube and measured the temperature right before the heater block, which should be the hottest point in the neck of the heat-break. Then I set my nozzle temperature to 250ºC which is 15ºC above what I usually print. Then set a stopwatch to 10 minutes so it had time for the temps to settle. And I then I tried a few designs and compared the differences.

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