Mr Toothy is...
My First attempt at a replacement cooling duct for the Anycubic Kossel Linear Plus
Well, actually, from trials so far I'm not sure this printer's stock cooling duct is that bad... it's a better blower that IMO it really needs. (see my Better Blower thingy)
I thought I'd do a duct that looks a little disturbing, if not necessarily better than the stock one.
Anycubic Kossel Linear Plus
Any (good) ABS (PLA will melt)
A functional cooler, but frankly I wouldn't bother
Having had your fun put the stock one back in.