Design Nomenclature / Physical Model Making
Parting line
Also called parting seam, split line, witness line, mould line
Where the halves of a mould meet, printed onto every part that comes out of it as a faint raised seam. It exists whether or not anyone designed it — the only real choice is where it lands. Put it on an edge and it disappears; put it across a highlight and it is visible under paint forever.
