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

prusaprinters

<p>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.</p> <p>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.</p> <h3>Print Settings</h3> <p><strong>Printer:</strong></p> <p>Graber i3</p> <p class="detail-setting rafts"><strong>Rafts: </strong> <div><p>No</p></div> <p><strong>Supports:</strong></p> <p>No</p> <p class="detail-setting resolution"><strong>Resolution: </strong> <div><p>0.15</p></div> <p><strong>Infill:</strong></p> <p>25%</p> <p><strong>Filament:</strong></p> Generic ABS <p>Black Custom Section ==============</p> <p class="detail-image"><img src="https://cdn.thingiverse.com/assets/06/a3/de/33/8b/IMG_3820.JPG"/></p> <p class="detail-image"><img src="https://cdn.thingiverse.com/assets/46/5f/f9/ef/64/IMG_3816.JPG"/></p> <p class="detail-image"><img src="https://cdn.thingiverse.com/assets/9a/fe/10/01/1b/IMG_3815.JPG"/></p> <p class="detail-image"><img src="https://cdn.thingiverse.com/assets/70/e5/5b/fa/66/IMG_3814.JPG"/></p> <p class="detail-image"><img src="https://cdn.thingiverse.com/assets/d2/36/5f/50/e1/IMG_3813.JPG"/></p> <p class="detail-image"><img src="https://cdn.thingiverse.com/assets/a3/2e/2f/cd/82/IMG_3812.JPG"/></p> Custom Section ============== </p></p> Category: 3D Printer Parts