RC Helicopter Blade Windmill

These make great garden spinners if you have some old blades laying around.
I used 380mm RC heli blades. The pitch is set at 10° so these have a nice slow controlled spin.

I overbuilt everything for high winds so scale back as needed for your situation.

You will need:

• 1 set of 380 (or slightly less should fit too) RC helicopter blades.
• 2 M3x16 bolts and nuts.
• 2 608 skateboard bearings.
• 1 bolt and nut about 2.5 inches long that fits through the bearing.
• Some screws to attach it to a pole.