Kossel Mini J-Head mount with two layer fans

One of the most effective addons for my Mini Kossel:

To achieve good results when printing PLA, especially with lots of overhangs or bridges, a dedicated layer fan is essential.
I've designed this one in order to replace Johann's original design.
And, well - it works like a charm. :-)

Four/five versions are available:

"-fin.stl" is the same as the basic Version but with a fin for the PEEK fan. The fin is not really needed there (regarding the aerodynamics). It acts more li