I have a deep draw that I need to produce. In the process of this, I need to find a length of a total "seamless" line from the two center lines of the part, as cut through the center of the part in a sectional view. In another CAD system I have, I can generate a box around the part, sketch a line, project that line down on all surfaces, creating a section line, I can then fill in the split areas and find a length of line that I can then use to provide a rough finished part size. That will have some length added to it and I have a rough enough blank to be able to gauge how much steel that I need for my tooling.
Pic is a rough direction of what I am looking for. Thanks for any assistance.