I'm trying to make a loft feature but I'm getting an error message saying that the guide curve no.1 does not intersect with section no.1. But both of the profiles intersecting the guide curve so I'm kind of confused here. What exactly the message means?
I'm in SW2013, I'm attaching the file, so if someone can help by opening the file let me know what's wrong would be great.
Thanks in advance.
I forgot to attach the image.
Hi Greg,
Loft assumes that the profiles and the guide/s intersect each other. What you have is more suited to "centerline loft." if you simply replan your profiles and single guide to touch the major or minor vertex of your ellipses - it should work.
Mark
Greg,
Essentially your guide curve does not truly "intersect" your sections. It goes through the middle of them, but does not truly intersect the entities. If you cannot define the guide curve so that it intersects your elliptical sections, then you can cheat.
I am using SW2014, so posting the file won't help, but essentially you just create 2 Lofts. Keep your sections, but create new ones that use the edges of those sketches, but cut them in half with a solid line. One is the left and one is the right, or top/bottom, or whatever. You also have to use the sketches for you guide curve to create 2 of the same curve, because once you use the curve in a Loft you can't use it anywhere else (for some unexplained reason).
Here is a picture of the final model:
You can see the line in the middle of the Lofts where they join together. If that line is really a bother for you, I have another way to do this that will not have that line. Essentially create a half sketch at the begining and end, Loft a surface using your original guide curve, create new guide curves using the edges of that surface, and now you can create the Loft that you wanted in the first place with your original sketches and the new guide curves.
I hope all this makes sense.
Eric
And FYI, I think the reason using your curve as a centerline doesn't work is because when you define a centerline it tries to keep the loft profile perpendicular to the centerline, and your curve has a bend that is too tight so that the edge of the profile would run into itself. When you use a guide curve, however, it doesn't necesasarily keep the profile perpendicular to it.
It might be useful if there was an option when using a centerline for whether or not it should keep the sweep perpendicular. If you think so you could submit an ER.
OK, now I got it. So when it says "intersecting the profile" it literraly means to coincident in any point of the profile. I had the impression that it meant to intersect the place that the sketch was drawn on. Thanks for the help guys.
Hi Greg,
Loft assumes that the profiles and the guide/s intersect each other. What you have is more suited to "centerline loft." if you simply replan your profiles and single guide to touch the major or minor vertex of your ellipses - it should work.
Mark