The development projection of a cone does not display bend lines.

Problem

A bend feature (“step bend”) has been created on a conical surface, but the development projection does not display bend lines.

Solution

Whenever there are issues with bend lines in the development view or in a part drawing projection, it is recommended to first try the Surface Chain Offset function:

• Select a surface from the part

• Right-click and choose Surface Chain Offset

• The software will suggest an offset value equal to the sheet metal thickness

In most cases, this resolves the problem.