parametric ducted fan and or lego compatible gearshaft —

Founded parametric ducted fan and or lego compatible gearshaft models & stl files for printing
Lego Ring
3DprintedSekiR0
Electric Ducted Fan Kit
J.C. 1nventor
RAMPS Fan Holder
BensHacks
Triangular Bladeless Fan
DanielMitchell