helix / vertical windmill

i wanna give back some love so here is my design of
my vertical windmill,
ist spins at low wind speeds and looks nice

you also need:
2 x bearings 608RS 8 x 22 x 7 mm (skateboard bearings)
60 cm M8 (8mm) threaded rod
2 x M8 screws
some M8 washers
a custom attachment to mount it

https://www.youtube.com/watch?v=430482-vOpA