Yeah! I've found myself in this situation on more than one occasion. I suppose ideally, we should take the ends into account when creating the profiles for sweeping or lofting. But you're right, it does seem natural to not create the full profile and assume that there'll be a way to cap it with a curve later. I've not found that way yet.

Anybody?

Yeah, this can be a tough one. Here is one method. To get this, I drew a curve in the top view like your dashed line, and then went to the front view and rotated and scaled it into place. Then I used Edit/Trim with "Add trim points" to split the curve into 2 pieces. That gives you something like this:

Now you can use those two pieces as 2 rails for a sweep. Select the end edge curve of the propeller, run Construct/Sweep, and then pick the 2 pieces for rails. That will get you this:

It's not perfect because it is not entirely smooth with the propeller. You can probably get it a bit closer if you tweak the shape of that curve a bit. Eventually there will be some additional tools that will help make surfaces like this nice and smooth with each other, but those are not ready yet, although sometimes you can cut objects back and use Blend, but it is a bit unreliable now.

- Michael

Hey, thanks to this topic I discovered what the "add trim point" function is used for ! :-)
Interesting information...

Added to the Special Thread gallery :)