[Ja...] Posted February 27 Share Posted February 27 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? Link to comment https://qualityforum.zeiss.com/topic/25979-calypso-mmc/ Share on other sites More sharing options...
[Ma...] Posted February 27 Share Posted February 27 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. Link to comment https://qualityforum.zeiss.com/topic/25979-calypso-mmc/#findComment-146931 Share on other sites More sharing options...
[Du...] Posted February 27 Share Posted February 27 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. Link to comment https://qualityforum.zeiss.com/topic/25979-calypso-mmc/#findComment-146933 Share on other sites More sharing options...
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