Easy Print 40mm Fan Duct for Ultimaker by Glasswalker

Last crawled date: 3 years ago

This is a fan duct I designed for my ultimaker. I needed a fan duct and a new fan, all I could source locally was a 40mm fan. And the other 40mm designs out there were designed in a way that the thicker high-rpm fan I ended up with wouldn't fit under the X carriage block when homing the X axis.
This design is inspired by those other designs, but revised to account for my needs. Hopefully someone else will find it useful.
I completely redesigned this one with several goals in mind:
Supports thicker fans without worry of it hitting anything on the machine during operation
Takes a 40mm fan, and ducts it in a 360 degree way around the nozzle while not cooling the nozzle itself too much
Easy to print, no overhangs, should be a super easy print to do well.
Structurally robust. Many others I printed sagged when the PLA warmed up, either causing the blower end to touch the nozzle, or to sag into the print. This one is structurally robust, and it adds ziptie hooks on the top to help support the motor weight.
Works wonders for me, I hope it helps you too.