140 mm NP-P14s redux fan and hub mod

Add glue to the tips of the blades for printing because they do not like to stick to the bed. However, they seem to perform just fine even when imperfect (like with mine) or if you snip the tips for balancing and to remove the messed up aero on the misprinted tips. I didn't expect the model to work first try otherwise I would have taken more care during these steps.

Before starting, remove as much plastic as possible from the magnetic ring and especially the center shaft as you can. This print is designed to fully replace it, not go over it. The magnetic ring will be reused, obviously.

Be advised, tolerances are TIGHT. These pieces are a strong pressure fit, you may need to adjust them by 0.1 mm in the fusion file or do some grinding depending on your printer's accuracy. Printing outer wall first and slowing way down for partial overhangs and external walls will help a lot.

For balancing, assemble the whole thing and then pull it back off, which should pull the motor shaft out too. This gives you a hard center point to balance the whole thing on and clip weight off and/or glue weight on until it no longer favors falling to one side or another. The wobble wasn't too bad to start, but it's virtually perfect after balancing. I used tungsten granules and clear gorilla glue, and some sanding and the results were great. Of course, any weight will work, you don't have to be extra like me an use tungsten. I just had some laying around already… don't ask.

Modified version of the 120mm fan made to fit Noctua's 140mm redux line of fans. In theory it should fit all of them, or any 140mm fan that uses an outer ring on the hub instead of a full metal encluser like the original model was made for. Although it's very possible it will work with a full hub fan too, and the cutout for the shaft simply won't be used. I would confirm this if I had the fans, but I do not.