(...) We already have a convention for this, I think. Parts with studs should have the top of the part (excluding the studs) in the X-Z-plane, and otherwise be centered. Of course, special parts need special rules. An example is the "joystick" (...) (26 years ago, 24-Feb-99, to lugnet.cad.dev)
(...) Correcting positioning and rotational errors can be done when/if a part renumbered. Which doesn't really happen all that often (it just seems like it). Steve (26 years ago, 24-Feb-99, to lugnet.cad.dev)