This is my version of the "circular fan duct" for the Anet A8 printer (and other compatible printers).
Highlights:
Designed in Blender, by heavily modifying http://www.thingiverse.com/thing:1874390 - simplifying the mesh, adding the new attachment part etc.
Note: there is newer, and more effective fan duct I designed: http://www.thingiverse.com/thing:2133328
Semi-Circular_Anet_A8_Fan_Duct.blend | 782.6KB | |
Semi-Circular_Anet_A8_Fan_Duct.stl | 378.8KB |