KENAT I'm with you. My plan would be to keep the ordinate origin at the center of the most important mounting boss. The datum reference frame would be established with three datums, in order primary to tertiary: the plane coincident with the top the mounting boss (where it mounts to the mating...
Thanks everyone for weighing in. Definitely sounds like there's a clear consensus! I'm a young engineer and new to GD&T so I was wondering if maybe the datums on each "0" of the ordinate origin was an industry accepted practice that I just didn't know about. It sounds like we should steer clear...
Hi Everyone -- I have a question about specifying a GD&T datum at the 0-0 of an ordinate dimension scheme. The 0-0 is specified at the center of a hole, so is it correct to call out the horizontal 0 as datum B and the vertical 0 as datum C, assuming a perpendicular surface is already datum A...
