{"data":{"model":{"id":"935318","slug":"breeze-4020-auxiliary-fan-mount-for-voron-24","name":"Breeze 4020 Auxiliary fan mount for voron 2.4","authorship":"remix","club":false,"excludeCommercialUsage":false,"price":null,"eduProject":null,"ratingAvg":"0","myRating":null,"ratingCount":0,"description":"

\"Breeze\" is a simple auxiliary fan system for the Voron 2.4 printer. You can mount up to four 4020 fans on the gantry (two on the left and two on the right).

This allows to increase part cooling capabilities, which is useful especially if you want to print with PLA or PETG at high speed inside an enclosure.

Print in ABS using standard Voron guidelines.

The front duct is identical for left and right.

The rh-mount should be mirrored for the left side, this ensures the adjustment available stays the same.

Two thread inserts should be placed into the duct.

Two thread inserts should be inserted into one side of the mount (the side with the larger holes).

M3 12mm nuts can be used to attach the front duct to the fans, the fans being mounted back-to-back. I'd suggest doing this first, to help hold in place during the next step.

Attach the two fans onto the mount using two M3 35mm bolt. Initially only connect the bottom end. This allows the fans to rotate away from the mount so you can access the mounting screws. (See image below).

Install the fan mount using 2 x M3 18mm SHCS. Keep the screws a bit loose at first, then swivel the mount forward to the desired direction. The actual direction will depend on your bed size, hotend position, etc., tighten the screws to secure the mount in place.

You can then click the fans back into the mount and insert the 2nd M3 35mm bolt.

Good examples for klipper settings for this type of mount can be found here https://www.printables.com/model/532824-breeze-auxiliary-fan-system-for-voron-24

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Based on the 5015 fan mounts idea by jphalip, this is a 4020 fan mount version, using these fans - no change is required to the bed positioning, or reduction in Z. Fans are mounted back-to-back so both have good air intact.

A front duct ensures the airflow from the fans is correctly directioned.

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