Wow, that is really weird, John (@j-healy). I don't think I have ever seen delams like those before. I have seen stuff coming out of my 3D printer a couple of times, but that was entirely my fault. I have the Heller EC-121, the L-1049 Super Constellation, and the Douglas airliner in the stash. All from the late 1980s. Hopefully the plastic won't do the same thing.