Tutorial - Modeling a Taper helix in SolidWorks?

Here is the tutorial.
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Step 1:
Start SolidWorks in part mode.
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Step 2:
Top plane>>Sketch.
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Step 3:
Draw a circle of 25mm dia.
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Step 4:
Curves>>helix and spiral.
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Step 5:
Defined by Pitch and revolution and pitch = 2.5mm and revolution = 10, start angle = 0º and Clockwise.
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Step 6:
Top plane>>sketch.
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Step 7:
Select the sketch under helix and then convert entities.
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Step 8:
Curves>>helix and spiral.
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Step 9:
ame pitch and revolution be 5. Change it to counterclockwise with taper helix 23.00º inward.
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Step 10:
We have the helix generated.
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Step 11:
We can sweep along the curves.