How to model spiral wire without stretching

I have modeled a spiral wire using screw modifier and curve modifier. But in bends the wire is stretching/shrinking. how can I fix that? Thanks. (71.9 KB)

Single wire spring and 1scripts “extruded along path”

Thanks. Sorry. I don’t understand what that means.

I think he means to create the spring shape using curves, then you can manipulate the shape without deformations.
You can get the general idea from this tutorial:

Hope this helps.

Thank you.