This is the BreezeBlock fan shroud for the CR-10 Printer. I wanted to design a sleek fan shroud that worked with the 5015 blower, but did not have a bulky profile. It was also important to me that the parts print easily without having to use supports. Since it does not use supports, it does require a bit of extra hardware.
works with 40x40x10 heatsink fans
UPDATE Veffified to fit Microswiss all metal
i used 4 walls to make part extra durable
the shroud contains a small piece of built in support in the mouth it snaps out easily
Print 2 of each Part Except the L shaped arms, Print 2 of them.
1: Remove metal fan cover, or any existing fan shroud so just your hot end assembly is on the mounting plate
2: remove the 40 mm fan from the previous shroud.
3: place the Breezeblock harness over the hotend assembly as show and attach it with 2 m3 6mm(6mm threaded post) screws (if you are using a sensor mount hold it on top of the harness and attach both at same time.
4: Take the harness support arm and fit it clamping over the back corner of the mounting plate and attach it with 2 2 m3 6mm(6mm threaded post)
5: Snap each of the L shaped arm brackets under the hooks and line up the screw hole and fasten with a m3 6mm(6mm threaded post) screw
6: push your 5015 fan exhaust into the opening and use 2 4m x 28mm(28mm post (can be longer)) and 2 nuts to attach the fan, it should be real snug, the tension is what keeps the fan held in tight.
(you can use 4 shorter screws to hold the fan in like i have in my pic, it just does not hold as good as having screws that go all the way thru.
7: place the 40 mm fan inside the shroud, with airflow blowing inwards toward the hotend assembly, and us 4 M3 x 15mm(you can prob get slightly shorter screws to work but around 15 mm is ideal.)to go thru the shroud slots thru the 40mm fan screw holes, and into the holes on the brezeblock harness you can adjust the shroud up and down slightly to get the best flow for your nozzle before snugging the screws all the way.
8:connect the wiring for your fans, and snap the ptfe tube into the guide
9: if using a sensor attach that to mount