@unknownuser said:

WHAT am I doing wrong???????

I'm still using SU7, but I still think I may be able to help you. I'm assuming you are using Edges by Rails? If so, here's what I think you doing wrong. Looks to me as if you are choosing the wrong profiles and rails. (Blue=profile, purple=rail) You've chosen the bottom circle as the profile, while the open curve and the top circle you've chosen for the rails. I tried to duplicate this in SU7, choosing the bottom circle for the melding profile as well, and SU7 crashed. Even if it didn't crash, I suspect it would have yielded a bizarre shape, not what I suspect you are looking for.

Try this:
Choose the open curve as the profile, and the top and bottom circles as the rails, and the open curve again for the melding profile like so

That should give you something like this.

Now, if you want a symmetrical shape, simply select only the open curve—not the circles, just the open curve—and then choose EE by Lathe. Set both axis point on the same vertical axis that runs through the center of the circles, and set the rotation angle to 360. That will give you something like this:

Hope this helped you.

Below is a W.I.P. made with TIG's extrude plugins. I drink a toast to you and your genius, TIG. (Sorry that the cup is empty, but I already drank the toast. )

[attachment=2:3w44uwco]<!-- ia2 -->chalice1.png<!-- ia2 -->[/attachment:3w44uwco]
[attachment=1:3w44uwco]<!-- ia1 -->chalice2.png<!-- ia1 -->[/attachment:3w44uwco]
[attachment=0:3w44uwco]<!-- ia0 -->chalice3.png<!-- ia0 -->[/attachment:3w44uwco]

I find "Edges by Rails" to be by far my favorite of the set. I find it has the most predictable and satisfactory results.

I've only really tried EEBR so far, but it's really cool and has a multitude of uses.

Personally, I find a tutorial for EEBR unnecessary. I find the plug-in pretty straightforward and easy to use. Still, Arc did a good job with his vid.

Awesome plugin! Thanks!

round_corner.skp