I have tried a few different fan shrouds for cooling on my printer and some I gave up on because I couldnt get a quality print out of it and some just didnt seem to work very well. SO I decided to make my own, I'm a engineer for sakes I should be able to do this.
This is a simple fan shroud probably made by hundreds of others but this one works for a Noctua 40mm Fan.
It works with the existing mount for the original MP Select V2.1
Currently it works by the screws just screwing into the plastic holes, I am working on a fix for this and I should be releasing that this week (5/2/2018)
There are two versions one I have printed and am testing the V6 and the untested version which has a slightly modified shell and a wider mouth at the nozzle end. Currently testing a print with the V6 while using that cooler to print the V7.
I have designed these in Fusion 360 SO if you would like the part files just shoot me a comment and I can post them for people.
I should be making a few versions of this thing, currently this one points at the nozzle, and within a few weeks I should have a version that wraps partway around the nozzle a "C" shape really. These will all work with the stock 40mm fan and a noctua 40mm fan.
Let me know if you guys want any changes as well!