If you share your f3d file then we can see everything that we need to help you. Some of the folks on here can understand nearly anything you might describe and be able to tell you how to correct it. Tin is one of those people.
I know my way around Fusion but I can’t follow your issues with your descriptions. When it comes to most 2D drawings, 90% of us can help you pretty quickly if we can look directly at the file you are working on.
(Trust me, none of us want to steal your design. After you have done this for awhile you will quickly find that most of us can just have a picture of what we want and can turn it into a functional cut design. If there is something private that you don’t want us to seem then mock up another design and create the same issue. Once you figure out what the problem was you can work backwards on your ‘private’ design.)
