SELF INTERSECTING ERROR ON LOFT WITH 3 POINT ACR AS GUIDE PATH

Alyx_Clark

As the title says, I'm trying to loft between two faces using a 3 point arc as a guide to add curvature to the loft. Link is attached. Any help is appreciated. Thanks. 
https://cad.onshape.com/documents/e23016fdb4a673a18bc2463a/w/676cd48d2b3dce8d2f641fda/e/6409807c8957bbeab643f408 

MichaelPascoe

In that case, try something like this:

• Split the faces you are trying to loft (This way there is not a shared vertex which can cause problems in a loft)
• Loft New the two faces, select normal to profile for both end conditions
• Loft Add the remaining two faces with guide curves (Note: guide curves must be exactly connected to the vertices they are connecting)

https://cad.onshape.com/documents/63ecca5449c15af7d23e1975/w/2080e9fd2b5ad1a4b48ff70c/e/e0445440a53a4fcb1237bdf3

MichaelPascoe

The profiles you are attempting to loft are at different heights. This may or may not be what you were going for.

Here is one approach you could take: Instead of trying to loft a complicated corner, start the model off by creating a simple Sweep. Note that the corners of my sweep path are filleted to ensure the rounded corners.

https://cad.onshape.com/documents/63ecca5449c15af7d23e1975/w/f885ed38879488d7f7bccf38/e/e0445440a53a4fcb1237bdf3

Alyx_Clark

Thanks for the reply! The profiles being at different heights was intentional. They need to be at different heights. Do you have any other suggestions?

MichaelPascoe

In that case, try something like this:

• Split the faces you are trying to loft (This way there is not a shared vertex which can cause problems in a loft)
• Loft New the two faces, select normal to profile for both end conditions
• Loft Add the remaining two faces with guide curves (Note: guide curves must be exactly connected to the vertices they are connecting)

https://cad.onshape.com/documents/63ecca5449c15af7d23e1975/w/2080e9fd2b5ad1a4b48ff70c/e/e0445440a53a4fcb1237bdf3

Alyx_Clark

That worked! Thanks a lot! Really appreciate the help!