An improved design over my previous cooling fan arrangement. The fan is attached by this version to the X carriage.
Print one of each part.
Put bolt through the two components or a M3x18 to create a joint.
Use M3 bolts to attach a 40mm x 40mm x 10mm fan.
Attach to the top of the X carriage using the four existing accessory bolts.
Angle the fan so it is pointing down towards the hotend and tighten the bolt.