Vertical Axis Wind Turbine

Prints (0)

Description

This is a test part for a vertical axis wind turbine I modified a NACA0015 symmetrical airfoil to a asymmetric airfoil.

Airfoil will need to be epoxied together I will use this one to drive a small electric motor that will charge at about 6 volts at 100rpm. Using a 2.2 gear reduction(32 pitch pinion gears rc cars). The Youtube video was the first try. It handled 24mph winds but blew the blades off at 30+mph. I added more material at the break point. The final goal is to build a full size turbine(400%) to help supply power to my house. I'm using 20mm OD 9mm ID bearings. A steel axle needs to be fabricated about 100-120mm long. A threaded rod can also be used as an axle.   All parts are printed as follows: 1.75 filament, .4 nozzle, .2 layer, honeycomb infill .5, PLA Temp 205deg extruder 65deg bed for first layer Temp 200deg extruder 60deg bed for first layer Speeds 30 perimeter  60 infill(default speeds) Perimeter layers 4 Top and bottom 5 Blades are printed with above settings except as noted below. Blade center: Perimeter layers 3 Top and bottom layers 0 rectilinear infill .2 Blade end: Perimeter layers 3 Top and bottom layers 3 rectilinear infill .2 Blade mount: Perimeter layers 3 Top and bottom layers 4 rectilinear infill .4 The only support required is for the BearingMount and NoseCone. Blade assembly: for a 210mm blade you need to print one of each of the parts labeled "Blade______".  For a 360mm blade you'll need 3 "BladeCenter" pieces. These will 1 between BladeMounts and 1 each side between BladeMount and BladeEnd. MotorHousing uses 4 top and bottom layers 3 perimeter layers and a .35 layer height. Forgot to mention the hub is not symmetrical. This is so I can find the best angle of attack for the blades. The set now is the trailing edge is about 4mm larger in radius than the leading edge. 

Design Files

File Size

PoleMount.stl
2.83 MB
BladeMount2.stl
386 KB
BladeEnd2.stl
204 KB
BladeEnd1.stl
200 KB
BladeCenter.stl
207 KB
BearingMount.stl
3.45 MB
BladeMount1.stl
389 KB
HubBottom.stl
718 KB
HubTop.stl
1.27 MB
MotorHousing.stl
2.87 MB
NoseCone.stl
3.52 MB
Strut.stl
498 KB

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