Website: thingiverse
Author: timqui
Price: Free Download
File format: .Stl 3d printable
Description:
This is improved remix of https://www.thingiverse.com/thing:4251317 = cutted out useless centre and fixed the height of the inner fins (rungs).Faster printing time about 15 %! Using less material and less supports (only touching buildplate)I measured noise reduction about 7 db!Support: touching buildplate; Infill: 15%.