CAD Forum

Hi all,

The attached screenshot is the error message that I got when I tried to use a sketch to make an extruded cut offset from a curved surface. Could it be because the selected surface is curved? Also attached the file to the post.

Any help/insight is appreciated .

Thanks in advance,

You've asked the same basic question in 3 or 4 separate posts. You need to do enough tutorials to understand a closed sketch.