Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:4289787.

This is a shroud to protect the filament fan and to help reduce pulling air from the heated bed. Attachment is simple. I used a 3 mm cap screw and nylock nut. The clearance is tight and I thought a cap screw would work best. It looks like you could get by with a socket head. Check before running.

I also needed to re-seat my fan before it would install correctly.

.step included