I had a rethink on how to improve the part cooling for my Snapmaker whilst 3D printing.
After a bit of research I have opted for a 50mm blower type fan.
Although still in the early stages of testing, I have noticed a marked improvement!
Whilst printing an overhang test, I was able to achieve an extra 15 degrees of overhang before print failure! (see images).
I have just posted my mount for the 50mm blower fan on thingiverse… www.thingiverse.com/thing:3610831