SnapMaker Cooling Shroud

This is a shroud to add to the bottom fan on the SnapMaker 3D printing module. It uses the 4 screws that hold the fan on and just mounts over the fan. It features a valve that lets you redirect the air flow away from the nozzle for filaments like ABS that don't require cooling. The valve can also be positioned partly open to reduce the cooling flow when desired. This first version has a slight alignment issue with the nozzle and may require the shroud to be biased as the screws are tightened to get it aligned. I'll fix that with the next version. I also plan to give the nozzle a little more clearance as some nozzles are larger than the original SnapMaker one.

EDIT: 8/12/18 Updated. Added housing covers to aid cooling flow. Be careful to not pinch wires when installing Left Cover. The wires should route along the front edge of the housing between the two ribs and the housing. The Right Cover Spacer should mount on the fan before installing the cover. It snaps over the screws.

EDIT