Parametric Spring with gradually reduced pitch at the ends (Fusion 360)

Modeling a parametric spring with gradually reduced pitch at the ends.
This example gives much more possibilities than the integrated coil feature to model different kinds of realistic springs.
While this spring model is parametric with some flexibility for modifications, I don't use User Parameters. Instead, I try to make the most of implicit parameters created by Fusion 360 on sketches and features.

[@BiggiN483]

Thank you so much! I made myself an adjustable pressure spring off of your explanation that i can now reuse and make different springs with only changing 4 parameters.

[@etiennek]

Woaow ! utiliser l'outil emboss, idée de génie ça !

[@demirmahir]

Very interesting approach! Thanks for sharing.

[@ozgur280]

you are so good , thank you

[@ThomasHaberkorn]

Wow, really helpful! could you do a follow up video for a conical spring? the emboss feature seems to break when using a taper angle on the center cylinder

[@helmutrabe4937]

Excellent!

[@VinyJones2]

I thought you were about to use intersection curve

[@Toffypops]

you did not say how you "animate" it at the end?

[@steelstone]

Indeed. Search for "spring motion animate" and you'll find various examples of how it can be done with Fusion 360. It is not an actual spring compression, but spring portions animated with joins. A bit tricky and not really usefully, but funny ;)

[@milazemay]

@@steelstone "A bit" tricky? 😆