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How to use a projected curve to make a propeller blade?

Question asked by Daniel Sevier on Sep 9, 2018
Latest reply on Sep 17, 2018 by Matt Lombard


I am trying to figure out how to create the curved edge of a propeller blade by using a projected curve. (This is more instructional for me, as I am trying to learn, and I think I am missing something fundamental about projected curves here.)  I am just trying to roughly approximate it, so it doesn't have to be exact.


I understand there are other ways to do this like using a helix curve or the flex tool, but I'd like to try to figure it out using with the projected curve.


My 2 sketches, used to make the projected curve, are on orthogonal planes, and I've made the sketches' endpoints coincident (I think) and the "span" of the sketches should be the equal.


A projected curve is created, but it is not as desired (as you will see). I think the problem is somehow related to the side sketch (sinusoidal shape).


I've attached the SW file and the propeller images, if needed. Please help. Thanks!