>>9341004Sounds like your idea of "part fit" is foot not hitting the hand as it moves. Which is fine, but it's not what me and the other posters were talking about.
"Part fit" = parts fitting when you put them together. Whether they have to move after that or not is not important. What is important is their alignment and absense of gaps. Now you can go ahead and use whatever definition you want but this what the argument was about.