Startt circular fan

thingiverse

UPDATE 2: New design with added support for closed end of duct - stops it for sagging over time when exposed to hotend heat. Use "fan blower.stl" UPDATE: I've updated design with: - better fan mount (angled for clearance and visibility) - improved internal flow (reduced complexity) - improved printability (it now prints with less support when placed on its side, and uses less supports inside duct) - Fully circular duct (removes edge which could catch on bed fixing clips) - circular duct placed slightly higher to improve clearance Stock part cooling fan is not very good at cooling prints: -air jets from one side -air cools not only parts but also interferes with hotend heating - it cools it I've designed new circular cooler with horizontal fan mount and circular air nozzle to better direct air around parts