Node 202 - Customizable cpu fan duct for Noctua NH-L9i cooler

prusaprinters

<p>This is a remix of <a href="https://www.thingiverse.com/thing:4057643">https://www.thingiverse.com/thing:4057643</a> ( <a href="https://www.reddit.com/r/sffpc/comments/ecl6fu/node_202_build_with_cpu_fan_duct_mod_resulting_in/">original reddit post</a> )</p> <p>I remade it with OpenSCAD to allow customization, by modifying only a couple variables. It will generate a STL with dust filter side laying down for easier printing.</p> <p>The provided STL is made to fit my setup:<br/> Noctua NH-L9i cooler<br/> Intel i5-7500 (any socket1151 CPU, really)<br/> MSI B250I GAMING PRO AC</p> <p>The better airflow can reduce your CPU temperatures by 10-15°C.</p> <p>Right now it is printed in PLA and CPU reaches 60°C, but I don't see any warping. If your case reaches higher temps i suggest printing in PETG or ABS.</p> <p><strong><em>UPDATE (02/02/2020):</em></strong><br/> According to a couple DMs I got this can fit AM4 boards with Noctua L9a-AM4 by increasing duct_height base value from 38 to 40.5.</p> <p>Also according to another user this will fit a Cryorig C7 cooler with the same motherboard as original maker ( ASRock B450 Fat4lity Gaming ITX/ac ), but he didn't tell me his values.</p> <p>Last thing I have updated the scad comments with a better description of how and where you should measure both offset values, as it wasn't really straightforward initially, I hope is clearer now. If that is not the case, original maker made a better explanation with pictures on his Reddit post.</p> <h3>Print instructions</h3><h3>Category: DIY Print Settings</h3> <p><strong>Printer Brand:</strong> Creality</p> <p><strong>Printer:</strong> Ender 3</p> <p><strong>Rafts:</strong> No</p> <p><strong>Supports:</strong> Yes</p> <p><strong>Resolution:</strong> 0.2</p> <p><strong>Infill:</strong> 10% Gyroid</p> <p><strong>Filament:</strong> GEETECH PLA White<br/> <strong>Notes:</strong></p> <p>Print setting:<br/> 0.4 nozzle<br/> 0.2 layer<br/> 3 walls<br/> 3 top/bottom<br/> 10% gyroid infill<br/> Line supports</p>