All about MMC & LMC Modifier | GD&T Masterclass
In this video, I explain the concepts of MMC (Maximum Material Condition) and LMC (Least Material Condition) in detail. I cover what these terms mean in general and how they apply as material condition modifiers in a GD&T control frame, specifically with position tolerance, flatness, and other geometric tolerances.
You'll learn why the MMC modifier is commonly used in real-world assembly scenarios, including its role in providing bonus tolerances. I also discuss situations where modifiers should not be applied and explore the applications of the LMC modifier. Check out the video to see these concepts broken down into clear, practical chapters.
Chapters:
00:00 What we will learn
01:02 MMC- Maximum material condition
04:22 LMC- Least material condition
05:14 LMC, MMC and Feature of size
09:25 MMC and LMC as modifier
11:47 Regardless of feature of size condition
16:00 Position tolerance at MMC
18:44 Bounce tolerance at MMC
21:54 Use of MMC condition
24:01 Where do not use MMC condition
26:17 Flatness, Straightness and perpendicularity at MMC
27:51 Position tolerance at LMC
29:12 Use of LMC condition
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