Composite Curve for Spring Design

On last post, I’ve created an extension spring it’s model by swept a circle sketch along the curve path profile.

Let’s take a look at the model tree

Surprise? Only one feature can model this spring? Let’s take a look deeper…

This spring is actually a multiple combine curves and it’s define by one group by using Features>Curves>Composite Curve.

When it act as a single unit curve then I made another sketch Normal To curve end point and later swept along this curve.

and here the result..
extension spring

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