Projected curve on spring hook

I try to model a extension spring hook and here are my snapshot.. nice right?

It simple spring created by composite helix and curve and a sweep feature along the curve path. The tricky part is end of spring loop and the curve along the hook.

Lets take a closer look,

actually the end curve is created by projecting two sets of curve. Here is the Part tree;

You can utilize this tools using Features>Curves>Project Curve, have fun!

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