3DPrintMi J-head Duct Fan

This is a remake(thing:255387) made to work for my j-head clone and to make it fit as neatly as possible on my current printer make:98430).
The other designs seemed to be too long and the mounting system was not what I needed.
If you happen to have this printer and some kind of j-head or j-head-like groove to mount your extruder this should work as long as the length of the extruder is same. I believe is it about 47mm from the bottom of the groove to just before the tip of the extruder.