MakerGear M2 Ducted Fan Mount

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There are a lot of alternative hot-end fan mounts for the MakerGear M2 that try to increase airflow where it counts, but most of them require a modified mounting assembly for the hot end. This one goes on just like the standard mount -- in front, and is still able to pivot out of the way for access. As of May 12, 2015, there's now a second, more aggressive, version with a rectangular output. You can see the difference in the third image. The more aggressive version tends to cause uneven cooling on larger objects, so I don't recommend it unless you're printing things with very thin structures. As of March 7, 2016, there's now a third version that aims the air flow just about perfectly. It's got an oval opening like the first version, but it points more directly where we want the air, and that works -- even better than the second version, which appears to suffer pressure loss from using a rectangular opening. The catch is that this 3rd version still doesn't produce perfectly even flow because the air is all coming from one side. Still, it is better than the other two versions....

About the author:
ProfHankD
I'm a Professor of Electrical and Computer Engineering at the University of Kentucky, best known for things like having built the world's first Linux PC cluster supercomputer in 1994... although around the 3D-printing world I'm probably best known for my HingeBox (which Tested popularized). My research group (Aggregate.Org) really is about improving computing systems by making the various SW+HW components work better together, which we do for many different types of computer systems: supercomputers, digital cameras, ... and now 3D printers. I had some experience with tool and die making using Bridgeport Series I CNCs as far back as the late 1970s, but my 3D printing adventure started in late 2012 with purchase of a MakerGear M2 for my lab to make custom camera parts in support of computational photography research. I now use multiple MakerGear M2 and Wanhao I3 3D printers, several semiconductor laser cutters, a 3040T CNC mill, a programmable paper cutter, and a small vacuum forming machine.

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