I've made some alterations to my fan mount.
The main change I had to make was to trim 3mm off the top edge because it was touching the top edge of the case before the home sensor. Everything seems to be seated correctly. For now, I've trimmed it by hand (the removed material seems to be entirely cosmetic)
The other change that I've made is to widen the channel at the back - I'm running the single extruder right now, and I had a couple of failures where the PTFE tube bent and popped out of the extruder, so I found a piece of tube to reinforce the PTFE so that it can't bend. Again, I've trimmed the existing fan mount by hand (I think I've weakened the structure, but not by much). It would be really nice to print a new mount that has my modifications. I'm sure I read in the Kickstarter notes that this printer was "fully open source", but the only models I can find for the printed parts are STL, which isn't really a source format. Are the real source files available? I use OpenSCAD, but I guess any format would be better than STL.
At a push I think I can use the STL as a starting point, but it seems like unnecessary effort if I'm just looking in the wrong places.
Step files aren’t provided (at least yet). I can try to convert the file to a somewhat workable step tomorrow morning if you need it :)
Already did that to the fan shroud although I had to delete the Makertech logo since it was damaged upon importing the stl. It’s now easier to print and compatible with the Phætus Dragon.
Here are the step files. Still have a ton of triangles on the surface but at least you can work with it.
I added my mod for good measure. Changes to the original are:
-A little wider canal for the PTFE (about 0.2mm)
-Reliefed a difficult to print spot
-Made room at the coupling of the hotend to fit the dragon hotend (still works with the normal one)
-Added the beautiful Fickbert&Traubensaft logo
As for your sensor problem: I guess you put the Y-axis sensor upside down which pushes the trigger point a bit back. I have no problems whatsoever with the shroud crashing into the frame.