Tutorial - Modeling Turbine rotor in SolidWorks?

Here is the tutorial.
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Step 1:
Right Plane>>Sketch.
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Step 2:
Draw this sketch.
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Step 3:
Revolve it about center line.
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Step 4:
Front plane>>Sketch.
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Step 5:
Draw this profile.
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Step 6:
Extrude it mid-plane.
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Step 7:
Select top plane & origin and then click reference geometry>>axis.
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Step 8:
Circular pattern.
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Step 9:
Select the boss-extrude as feature to pattern about axis1.
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Step 10:
Insert>>Features>>Flex.
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Step 11:
Flex input be the body. Twist type and then enter 60º. Click OK.
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Step 12:
Front plane>>Sketch.
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Step 13:
Draw a circle.
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Step 14:
Revolved cut it about the axis. We have the part.