Calypso MMC

[[Ja...]]

 

I am trying to check a Perpendicularity and position using MMC. As I understand MMC, it allows extra tolerance when the diameter is larger than nominal size. In the example above the actual diameter is smaller than nominal yet the MMC position is almost .004 under the actual position. How is this possible, what have I done wrong?

[[Ma...]]

It's working not from nominal but from minimal/maximal size.

(M) on hole will get no bonus on min. diameter and full bonus on max. diameter.

(L) on hole will get no bonus on max. diameter and full bonus on min. diameter.

On shaft it's inverted.

[[Du...]]

the (M) is not the MMC calculation i believe it just for statistics, you can just ignore it. you can search it on the forum and find a few posts to understand it.  if you had bonus tolerance with MMC it would be calculated into the tolerance for the original position.