Raspberry Pi 3 A+ with Blower Fan

prusaprinters

<h3><strong>Overview:</strong></h3><p>I wanted to design a case for my Raspberry Pi 3 A+ supporting a fan with parts I had laying around. I only had a 40mm blower fan and as I couldn't see any models for this, I decided to make my own.</p><p>My make of this has both FDM (Case &amp; Lid) and Resin printing (Ducting) - Although it is possible to print the ducting using an FDM printer, I choose to use a semi transparent resin so I could see the Pi's heatsink.</p><h5><i><strong>*Requires modifying the Pi by removing the USB port</strong></i><strong>*</strong></h5><p>&nbsp;</p><p><strong>Hardware required:&nbsp;</strong></p><ul><li>Will Update soon</li></ul><h4>&nbsp;</h4><h4><strong>Printing Instructions:</strong></h4><p>Case:&nbsp;</p><ul><li>Resolution: 0.2mm layer height</li><li>20% infill</li><li>4 perimeters</li><li>4 top layers</li><li>3 bottom layers</li><li>Support required - YES</li><li>Print orientation - Bottom down</li></ul><p>Lid:</p><ul><li>Resolution: 0.2mm layer height</li><li>20% infill</li><li>3 perimeters</li><li>4 top layers</li><li>4 bottoms layers</li><li>Support required - NO</li><li>Print orientation: Top down</li></ul><p>Ducting:</p><ul><li>Resolution: 0.08mm layer height</li><li>Print orientation: hole side towards build plate</li></ul><h4>&nbsp;</h4><h4><strong>Summary:</strong></h4><p>This is my first CAD Design and Mk2 of this model.&nbsp;</p><p>I plan to rework this model in the future to improve the following:</p><ul><li>Make it easier to print without supports</li><li>Reduce the amount of plastic used (I aim to also reduce the volume of this design)</li><li>Use less specific hardware (e.g. clips instead of screws)</li><li>Test that the Auto Fan control (https://thepihut.com/products/auto-fan-control-module-for-raspberry-pi) fits inside the case, if not - redesign so that it does.</li></ul>