Vertical Axis Windmill 03

I wanted to do some experiments with wind turbines of various types and then
I designed these windmills for a simple installation in the garden.
They are designed to be inserted in an aluminum rod Ø8 (usually Ø7.8/7.9mm)

Dimensions
External Diameter Ø96 mm
Height 100 mm
Internal hole diameter Ø 8.10 mm

Works even if horizontally installed

I printed it at 0.3mm layer height, with 2 perimeters and no infill for lightness purposes,
it needs no supports.

have fun