Please clarify this for me. For #3 coaxiality, shouldn't the positional tolerance be limited? Even if we put MMC or LMC it will not affect the coaxiality because those modifiers control the size of hole and not the position. For coaxiality we need to try to control the location/position of the holes right? Thank you.
Hi, Varun, sorry for late reply. for application #3, if we put MMC/LMC after the position tolerance 0.4, let's say MMC modifier, that means, when the hole size is 1.8, position tolerance is 0.4; when the hole size is 2.0, position tolerance will be 0.6 (0.4 + 0.2, 0.2 is bonus, you see, the tolerance value increases with size increases due to bonus), then it will cause worst misalignment between two holes when calculating accumulated tolerance. That's why we should not use MMC or LMC modifier if the function is requiring the fixed position or alignment of coaxialtiy. Long and short, if the increase of the geometric tolerance (such as position tolerance) will worsen the function, then don't use it. Hope it helps. Michael XU
Great content! 🙌
I would appreciate more knowledge like this, thank you!!
很实用，谢谢老师
Please clarify this for me. For #3 coaxiality, shouldn't the positional tolerance be limited? Even if we put MMC or LMC it will not affect the coaxiality because those modifiers control the size of hole and not the position. For coaxiality we need to try to control the location/position of the holes right? Thank you.
Hi, Varun, sorry for late reply. for application #3, if we put MMC/LMC after the position tolerance 0.4, let's say MMC modifier, that means, when the hole size is 1.8, position tolerance is 0.4; when the hole size is 2.0, position tolerance will be 0.6 (0.4 + 0.2, 0.2 is bonus, you see, the tolerance value increases with size increases due to bonus), then it will cause worst misalignment between two holes when calculating accumulated tolerance. That's why we should not use MMC or LMC modifier if the function is requiring the fixed position or alignment of coaxialtiy.
Long and short, if the increase of the geometric tolerance (such as position tolerance) will worsen the function, then don't use it.
Hope it helps.
Michael XU
@@kraiginfo6339 Thanks Michael. Makes sense!
Super explanation I need more videos stack up analysis