The part is not being held by a fixture so the datums are being probed. It's v4.1 which under the true position dimension it has given me the option to add MMC from up to three datums, which it is calculating the bonus tolerance however it is only applying the bonus from the feature and one of the datums. So what I end up with is a part showing out of tolerance but yet I have bonus tolerance not being used from the second datum feature. I guess what really gets me is if the software isn't going to give me the total bonus tolerance when I select the datums why have it their in the first place.
The part is not being held by a fixture so the datums are being probed. It's v4.1 which under the true position dimension it has given me the option to add MMC from up to three datums, which it is calculating the bonus tolerance however it is only applying the bonus from the feature and one of the datums. So what I end up with is a part showing out of tolerance but yet I have bonus tolerance not being used from the second datum feature. I guess what really gets me is if the software isn't going to give me the total bonus tolerance when I select the datums why have it their in the first place.
