Has anyone seen a FCF like this? Was wondering if it is a universal thing or if it's customer specific. I think I might understand what it's asking, but I'm not sure how to input that into PC DMIS. A and B in the FCF are points on either end of a tube.
Datum B is the same thing as Datum A, just on the other side of the tube. It's symmetrical, so I don't think it matters which one I define as A or B. I don't want to post the whole print because that's technically not allowed. But there are two defined points on either end of the tube called out as A and B on the print They are two endpoints of the tube's axis. The diameter is on the print, but as a reference dimension. There's no tolerance. I assume I'm supposed to use the stock tolerance, which neither I nor my boss can find. If I'm reading it right, it wants the position of a 5mm length of the tube at both ends compared to the rest of it. Seems like an overly complicated and dumb way to call out the straightness of the entire tube, but I could be wrong.
Datum B is the same thing as Datum A, just on the other side of the tube. It's symmetrical, so I don't think it matters which one I define as A or B. I don't want to post the whole print because that's technically not allowed. But there are two defined points on either end of the tube called out as A and B on the print They are two endpoints of the tube's axis. The diameter is on the print, but as a reference dimension. There's no tolerance. I assume I'm supposed to use the stock tolerance, which neither I nor my boss can find. If I'm reading it right, it wants the position of a 5mm length of the tube at both ends compared to the rest of it. Seems like an overly complicated and dumb way to call out the straightness of the entire tube, but I could be wrong.
