I am about to make a print for a sheet metal part I designed and I just noticed that the part has tangent edges on the sides of all of the bends.

These are unnecessary because that is all one flat surface, not separate surfaces. Is there a way to get rid of those? I want to show tangent edges on my drawing so that you can see where the bends are, but all these fake tangent edges make the drawing confusing, especially because they are so short that the tangent line font just looks like a solid line.

There is one spot on my part where those tangent lines do not show up, and I realized that is because I had done an extrude out from the side to lengthen the part, and the result did not have those lines. It was still able to flatten. Sides of bends that are exposed by a cut feature do have these tangent edges.

As I said I want tangent edges shown on the print but not these. I could show tangnet edges and then manually hide these edges, but that will be a ton of work because the actual part is fairly complicated. I could convert the real tangent edges and apply the desired line font and then hide tangent edge display, but that is also a lot of work. Delete Surface and Patch does the trick, but I'd rather not add a bunch of features if I don't have to. I feel like that would confuse someone who might need to work from my file and it could get messed up if features change.

Any tips?