error update: multi-sections solid

[quanghai0986]

I 'm building a propeller. But when i use "multi-sections solid", it have a problem. After i choose sketches and closing point, i click button "ok", it has announcement. . error update: Multi-sections solid 1: Sweep operater: the extrusion of a vertex of the profile leads to a cusp. Use a guide with a smaller curvature.
How can i fix this problem.
i don't know how to add the picture, so i use "attachments" to add the picture about problem.
Please help me, thanks.

 

[MrCATIA]

Quang, that message could be the result of many situations. Could be the closing points. Might be the guide curve (but I'm not sure if you need one). Are you using a "spine"? Are all the sections going in the same direction?

If you could attach a picture of your CATIA screen (showing the sketches and tree) when you get the message, maybe we can figure out exactly what the problem is.

 

[quanghai0986]

i fixed it

i fixed it yesterday. the problem is closing point. first i choose the closing point is at the trailing edge of airfoil, it did not work. So i tried change the closing point to the leading edge of airfoil. And it worked.
thanks mrcatia. i have begun studying Catia. i hope that i would have more experience about it.