CR10/Ender 3 MicroSwiss DirectDrive Dual 40mm Part Cooling Fan Duct by Print2Win 3d model
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CR10/Ender 3 MicroSwiss DirectDrive Dual 40mm Part Cooling Fan Duct by Print2Win

CR10/Ender 3 MicroSwiss DirectDrive Dual 40mm Part Cooling Fan Duct by Print2Win

by Thingiverse
Last crawled date: 4 years, 1 month ago
I designed this Fan Duct after upgrading my CR10 with the MicroSwiss DirectDrive Extruder and All Metal Hotend
(https://store.micro-swiss.com/collections/extruders/products/micro-swiss-direct-drive-extruder)
For easy installation and access to the hotend it consists of two parts:
-The main part including the part cooling ducts and backplate
-The removable front adaptor
It uses two 40mm Fans mounted to the sides for Part Cooling and another 40mm Fan mounted to the front adaptor for cooling the heatbreak/cooling block. All parts are connected with standard M3 screws.
V1(Original Version):
All mounting holes are designed with a 2.8mm inner diameter, so screwing in standard M3 screws will easily create an M3 thread. To get the length of the screws right, roughly add the following bore hole lengths to the thickness of the used fan:
Mounting holes for the part cooling fans: 5mm
Mounting holes for the front fan: 15mm
Additionally use M3x12 cylinderhead screws to mount the adaptor to the main part.
For mounting the whole Fan Duct to the Aluminium Plate from MicroSwiss I recommend using two more M3 screws with M3 washers to better spread the force on the printed surface.

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