Can't get chamfer on complex surface

I’ve tried several techniques, but I’m sure it’s inexperience here.

The last thing I tried was taking the 2D drawing and extruding it. Then I try to round over the top like it is on my car with a chamfer, and it tells me “the edge has no blend.” (Try telling that to U2.)

Any suggestions?

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The problematic parts are usually these:



In these cases it might not be possible to generate a blend without the body self intersecting, therefore it fails.

The problem of chamfering failure often occurs.Is it possible to introduce a function similar to the smooth model?


I would suggest to create a fillet instead of a chamfer -it is more tolerant to geometry- and then tune the shape of the fillet to be as close as possible to a chamfer (ensure the slider stays blue, not red)