Delta-P fan duct V2-R2 for MK3S(+) extruder

prusaprinters

<h5>This is version 2 (V2) of the Delta-P fan duct for MK3. It has several advantages compared to the stock fan shroud:</h5><ul><li>Prints easily with no supports</li><li>Better part cooling</li><li>Refined flow path</li><li>CFD optimized</li><li>Even cooling front to back and left to right</li><li>Improved visibility of nozzle</li></ul><h5>Print guidelines:</h5><ul><li>0.20mm layer height</li><li>4 perimeters</li><li>No supports</li><li>PETG, ABS, ASA, or other high temp material</li></ul><p>&nbsp;</p><h5>Installation Instructions:</h5><figure class="image"><img src="https://media.prusaprinters.org/media/prints/62523/rich_content/43713aad-2a6f-4f4d-a9ca-d0617a7d6154/image.png#%7B%22uuid%22%3A%22b730632d-354b-4d09-b59d-90bd75d0998a%22%2C%22w%22%3A936%2C%22h%22%3A665%7D"></figure><figure class="image"><img src="https://media.prusaprinters.org/media/prints/62523/rich_content/0f886d63-8431-471e-a2f3-442bb24afdea/image.png#%7B%22uuid%22%3A%2257a0d72b-37cd-4dc7-b4d9-1b1218ded4e5%22%2C%22w%22%3A786%2C%22h%22%3A663%7D"></figure><figure class="image"><img src="https://media.prusaprinters.org/media/prints/62523/rich_content/d390429a-53d4-4b03-9461-a2a8b1665821/image.png#%7B%22uuid%22%3A%223278e94e-62b1-4359-bb40-1d7060406efd%22%2C%22w%22%3A881%2C%22h%22%3A677%7D"></figure><figure class="image"><img src="https://media.prusaprinters.org/media/prints/62523/rich_content/53640efc-46ed-43f8-aa56-21e98669ca4f/image.png#%7B%22uuid%22%3A%229b31051d-eb67-46a5-a082-3b6ba92cd7a5%22%2C%22w%22%3A898%2C%22h%22%3A674%7D"></figure><figure class="image"><img src="https://media.prusaprinters.org/media/prints/62523/rich_content/c88c5368-f4be-4b7b-b7b1-2c0d42c6a633/image.png#%7B%22uuid%22%3A%224c0b1412-8187-4b8e-a9e1-1066ba47571c%22%2C%22w%22%3A892%2C%22h%22%3A562%7D"></figure><figure class="image"><img src="https://media.prusaprinters.org/media/prints/62523/rich_content/4b2edf2c-61db-4ca0-9c75-267094411f6a/image.png#%7B%22uuid%22%3A%22abf5959f-da55-4fc4-9f39-2ee1ceb93ee0%22%2C%22w%22%3A731%2C%22h%22%3A676%7D"></figure><figure class="image"><img src="https://media.prusaprinters.org/media/prints/62523/rich_content/49c143fa-b587-4d89-ab36-9f1c4eeb79f5/image.png#%7B%22uuid%22%3A%227ceb0b2d-a4e9-4326-a271-af49d648bb87%22%2C%22w%22%3A827%2C%22h%22%3A677%7D"></figure><figure class="image"><img src="https://media.prusaprinters.org/media/prints/62523/rich_content/eb55ad22-f87e-4d83-97b9-768c255f1b6e/image.png#%7B%22uuid%22%3A%22fed531db-b96d-4ac2-8bd7-0de435699af6%22%2C%22w%22%3A1046%2C%22h%22%3A669%7D"></figure><figure class="image"><img src="https://media.prusaprinters.org/media/prints/62523/rich_content/fd9cdb84-964e-4d5e-b415-a229a842c6ee/image.png#%7B%22uuid%22%3A%228514c036-e7d3-4983-a82a-7f6ffb84b348%22%2C%22w%22%3A666%2C%22h%22%3A677%7D"></figure><p>Installation complete! It is recommended to do a PID tune of your hotend after installation.</p><p>&nbsp;</p><h4>Many thanks to members of the Prusa3D discord for providing feedback and doing the CFD analysis!</h4><p>&nbsp;</p><h5>Running Bear extruder? Click here for the Bear variant:</h5><h5><a href="https://www.prusaprinters.org/prints/62524-delta-p-fan-duct-v2-r2-for-bear-extruder">https://www.prusaprinters.org/prints/62524-delta-p-fan-duct-v2-r2-for-bear-extruder</a></h5><p>&nbsp;</p><h4>Changelog:</h4><ul><li>12 Dec 2021<br>Added slot for square nut in the duct mounting boss. Requires using updated cover with wider duct mounting slot. Compatible parts are both marked “V2 R2.2”. The R2.2 duct will not work with the old cover so be sure to print up the new one! Also added installation instructions to this page.</li><li>7 April 2021 - Minor model change to improve bridging at exits.<br>&nbsp;</li></ul>