Flatness tolerance is from the category of form tolerances. Flatness is the condition of a feature or derived median plane having all elements in one plane. It will never have datum reference in the feature control frame. Flatness tolerance applies to feature or noncylindrical feature size. The tolerance zone for the flatness is two parallel…
What is the tolerance in an engineering drawing? The tolerance is the variation from the nominal dimension. The design engineer can provide tolerances in various types. Limit tolerances, unilateral tolerances, equal bilateral tolerances or unequal bilateral tolerances are the different ways. The limit tolerance will not indicate nominal value however provide the maximum and minimum…