This mount let you use the existing extruder fans for controlled cooling of your printing part plus an additional fan (35mm or 40mm) as replacement or extruder cooling. This Version allows you to reach all relevant screws to loosen and tighten the extruders without demount the fans or fan mounts ( you just have to demount the front fan mount by sliding it aside)!!!
This new controlled part cooling is very effective and improves parts quality a lot (see test pylon pictures)!
For the front fan you can use 2 versions of the mount with 35x35x10mm or 40x40x10mm. (The fan I have used on the pictures is 40x40x20, but attention: It could touch/hit the frame when it come into the home position. I have adjusted the end-switch to avoid this)
I have printed the parts in Polymaker PolyMax PLA with 100% infill at a speed of 50-60m/s. Just use standard print setting for your material.
I suggest white material instead of black as this improves the visibility of the parts during printing... !