Triple fan duct (2x40 + 1x30) - V3
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**V3 of my [triple fan duct](https://www.thingiverse.com/thing:3778174)** __Improvements__ 1. **Airflow seems now perfect** (again, with Sunon MF40202VX-1000U-A99), I've checked with the "water test" and it pushes water correctly right under the nozzle, powerfully and without (or very small) "backfire airflow". 2. The parts are easy to print and stay strong: Perimeters are 1.5mm and the fixations are reinforced (3 points). 3. No more minor holes when sliced, all is OK. 4. The ends are well spaced with the nozzle and the bed, so low risks to rub your piece when printing. 5. I've discover on V2 after days the ends begin to be melted on the nozzle, because it was too close. This is now fixed. __Conclusion__ Works perfectly with my setup (U30 with original 30x30 fan + 2x Sunon MF40202VX-1000U-A99), except if I see something in the next weeks, I don't think I will modify it again. :-) --- Beware: Depending on your X-axis endstop cover, it can touch the left fan... I've started to design it not to, but forgot it in the process... I didn't tested it with default endstop cover of my Alfawise U30, but no problem with the alternative I'm using. X-axis alternative endstop support: https://www.thingiverse.com/thing:3764556 Combined cover for endstop + pulley: https://www.thingiverse.com/thing:3810991
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