Prusa i3 MK3(S) (+ MMU V2) Extruder Cooling Fan Duct

prusaprinters

<p><strong>I've added two versions for MMU users, but these designs are based on CAD models of the MMU version of the printers. This means that I can't confirm whether they actually fit.</strong></p> <p>This is a revised version of <a href="https://www.thingiverse.com/thing:2975582">CG-Tech his design</a>. The major change here is that the cooling duct is now integrated with Prusa's own filament sensor cover. This allows you to mount the extruder cooling duct with a bolt instead of superglue.</p> <p>You will need a <a href="https://bit.ly/2WqwfLv">5V fan</a> to cool the extruder stepper motor. Look at CG-Tech his post for more information on how to wire the fan.</p> <p>Print the part in the orientation as shown in the .STL file. You will need some support material for the filament sensor cover part, but that shouldn't be an issue.</p> <p>Thanks to CG-Tech for the great design!</p> <p><strong>Support</strong><br/> If you want to support me for the designs I publish for free, please consider using my <a href="https://bit.ly/2XYWpHW">AliExpress Affiliate Link</a> when buying something from AliExpress. It doesn't cost you anything extra, but helps me out a lot :)</p> <p>The link in this post is an affiliate link.</p> <h3>Print instructions</h3><h3>Category: 3D Printing Summary</h3> <p><strong>I've added two versions for MMU users, but these designs are based on CAD models of the MMU version of the printers. This means that I can't confirm whether they actually fit.</strong></p> <p>This is a revised version of <a href="https://www.thingiverse.com/thing:2975582">CG-Tech his design</a>. The major change here is that the cooling duct is now integrated with Prusa's own filament sensor cover. This allows you to mount the extruder cooling duct with a bolt instead of superglue.</p> <p>You will need a <a href="https://bit.ly/2WqwfLv">5V fan</a> to cool the extruder stepper motor. Look at CG-Tech his post for more information on how to wire the fan.</p> <p>Print the part in the orientation as shown in the .STL file. You will need some support material for the filament sensor cover part, but that shouldn't be an issue.</p> <p>Thanks to CG-Tech for the great design!</p> <p><strong>Support</strong><br/> If you want to support me for the designs I publish for free, please consider using my <a href="https://bit.ly/2XYWpHW">AliExpress Affiliate Link</a> when buying something from AliExpress. It doesn't cost you anything extra, but helps me out a lot :)</p> <p>The link in this post is an affiliate link.</p> <h3> Print Settings</h3> <p><strong>Printer Brand:</strong> Prusa</p> <p><strong>Printer:</strong> I3 MK3S</p> <p><strong>Rafts:</strong> No</p> <p><strong>Supports:</strong> Yes</p> <p><strong>Resolution:</strong> 0.2mm</p> <p><strong>Infill:</strong> 100%</p> <p><strong>Filament:</strong> ColorFabb nGen Gray Metallic</p>