Modeling a Vertical Axis Wind Turbine Helix type blades in SketchUp

SketchUp
2

Not quite sure if this is the required geometry, but it may be the basis of a usable solution.

image
image432×964 28.2 KB

Helices.skp (97.2 KB)

I drew it using

  1. SU Draw Parametric Shapes plugin (from SketchUcation)
  2. Fredo6 Joint Push Pull (also from SketchUcation - part of Fredo6 Collection)

I first drew a Helical Ramp, with these parameters:

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image624×750 72.6 KB

Then rotated 120° and copied twice to get three blades.

Then used JointPushPull to give the blades depth of 12".

Does that help?