MK2 Extruder Fan 40mm Adapter

myminifactory

This is a 40mm fan adapter duct compatible with MK2s and other similar extruder-body designs. I've used this part daily, so it should also fit the MK2 Surround Nozzle available here. Design highlights include super optimized airflow and mass reduction, with a material volume of just 7.6cc - half that of most other designs. Design drawbacks exist due to extreme design parameters. One screw had to be mechanically shortened by 2.5mm, resulting in a M3 socket screw at 22.5mm instead of the original 25mm. I don't apologize for this adjustment as modding is an expected part of DIY ethos. Testing has been done with Noctua NF-A4x20 fans, so shorter or longer screws may be needed for other 40mm fans without recessed sockets. Hardware requirements include: * x4 M3 nuts for 40mm fan mounting * x2 12mm M3 socket screws for adapter mounting (inside duct) * x2 16mm M3 socket screws for adapter mounting (rear outside) * x2 25mm M3 socket screws for Noctua NF-A4x20 mounting * x2 25mm M3 socket screws shortened to 22.5mm for clearance