40 Geometric Dimensioning and Tolerancing Copyright Goodheart-Willcox Co., Inc. 6. Summarize the reasons that positional tolerancing permits more flexibility in manufacturing than coordinate tolerancing. Explain how positional tolerancing would allow for greater flexibility in the acceptance of parts for a bolted assembly. Assume the assembly has a threaded bolt, a mating nut, and two plates with mating holes. _ _____________________________________________________________________________ _ _____________________________________________________________________________ _ _____________________________________________________________________________ _ _____________________________________________________________________________ _ _____________________________________________________________________________ _ _____________________________________________________________________________ _ _____________________________________________________________________________ _ _____________________________________________________________________________ _ _____________________________________________________________________________ 7. The ASME Y14.41 Digital Product Definition Data Practices standard allows for a model and drawing to be used in product documentation. Describe a practical example in which a drawing would be needed to clarify requirements not defined in the model. How would this be indicated in the documentation? _ _____________________________________________________________________________ _ _____________________________________________________________________________ _ _____________________________________________________________________________ _ _____________________________________________________________________________ _ _____________________________________________________________________________ _ _____________________________________________________________________________ _ _____________________________________________________________________________ _ _____________________________________________________________________________ _ _____________________________________________________________________________ 8. What are the technical benefits of using 3D models in design documentation? How are models more effective than 2D drawings in a design and manufacturing environment? _ _____________________________________________________________________________ _ _____________________________________________________________________________ _ _____________________________________________________________________________ _ _____________________________________________________________________________ _ _____________________________________________________________________________ _ _____________________________________________________________________________ _ _____________________________________________________________________________ _ _____________________________________________________________________________ _ _____________________________________________________________________________