These are the instructions:

Print 1 of each part except for the blades tip x5 and lower half x5 and for the guides I chose to do x2 but more is better as this strengthens it.

I chose to print it in regular pla which is not a good idea as it's worse in the elements and is more prone to breaking so abs would be recommended.

For the blades I stuck them together with super glue which sounds dumb however they turned out very strong. However any joining method would work. Some parts required heating up before press fitting them. For example the hub piece for the motor was a tight fit because the cables were in the way.

External parts required:

Nema 23 stepper motor of any length

12mm wood dowel approx 500mm length

10x m5 bolts 25mm long

20mm diameter metal pipe from b&q that was 1m however the higher you mount it the better results you will get so try to get the longest pipe possible.

Lastly for the electionics you will need the following:

2x bridge rectifiers 1 for each phase

A step down 12v converter

Optionally you can get a capacitor to smooth out the voltage.

Disclaimer:

There are tutorials online on how to wire up the circuitry and I'm not responsible for you killing yourself for making this lol. Also the power generated on this turbine is roughly 25w that I have managed to get however the theoretical maximum production is 50w it's also situational and depends on where you decide to put it.

50w nema 23 stepper motor wind turbine

0.2mm layer, 2 walls, 15% infill