I 3D scanned the male end of the top of the dremel and then recreated it dimensionally in 3ds and then did a boolean onto the cylinder part of the shroud.
I did print it ay 0.16mm for thread accuracy and found this just srews onto the threads with ease. At 0.20 it needs a bit of push the first time.
4 walls/perimeters at 45% infill.
The author marked this model as their own original creation.