This evening, Ivan sent me an e-mail about a topic that, I think, may be of interest to some of you. With his permission, I'm reproducing it here;
Hello Guy, (note: yeah, that's my first name; Guy, pronounce it like the "gui" of guitar)
Earlier, I described the necessity of minute adjustments and being able to SEE the results of these adjustments changing contour lines. I found that I had to put an additional bulkhead at the front edge of the windscreen. I found that I had put the top edge of the fuselage about 0.03 foot too low at that point because I had done a single unbroken line from windshield's vertical frame to the next bulkhead forward.
....Concave.jpg shows the situation as I added the new bulkhead at the front edge of the windshield. As you can see, the outline then became CONCAVE which is not right. It should be convex or straight at all points. (I named this file wrong: The part is actually Y1.)
....Convex.jpg shows the result after adjusting the top points of the next two or three bulkhead upward to re-create the convex shape. (I named this file wrong: The part is actually Y1.)
....FrontalCheck.jpg shows a contour and streamline check of stringer Y2. (Y1 is on the centerline and doesn't show in this screenshot.) Note that absolutely NONE of the parts in this screenshot will appear in the model. These are the equivalent of my building templates and jigs.
This check and adjustment was done in about a half hour. If this were a purely SCASM project, I don't believe I could have done this check and adjustment at all. Do you know of a way this can be done in SCASM? This "misalignment isn't usually visible in the simulator except via odd shadows in unusual places. I fix them because I KNOW they are there.