I had to make a ducted fan mount that fit my Wallace G1, or really any printer using my Wallace edition Eckstruder.

This is only verified to work with an actual J-head hot-end. (Provided they didn't get longer or shorter since my last one. )

The first one is a simple one piece print with no support. However, it kept running into my bed clips.

V2 is a 3 part glue together affair. Seems to be working well. Still testing.

I will upload scad file when I'm happy with it.

Print X2 version. All three parts.

Use Acetone or favourite glue to attach arms to body. Vents pointing in.

Attach 40mm fan.

mount on Wallace Eckstruder fan mount holes.

Test.