Fits and tolerances are a system used in engineering to determine proper size and how that relates to a different part. A fit is the relationship between more than one part such as a shaft in a car engine. “A piston is a piece of sliding metal moved by force,” George seca (10) said. Fits use common manufacturing tools which allow for money to be invested into the product and not the investment of new equipment. Fits restrict degrees of freedom which allow for the six basic movements up/down, left/right, foward/back, pitch, yaw, and roll. One example of how these could be restricted is a helicopter restricing its rotor movement. “Water bottles work because you twist the cap to remove the cap,” George Seca said. Tolerances are allowances in an object which allow for easy manufacturing as the tolerance is maximum deviation allowed. Fits have tolerances as well due to the need for inexpensive but accurate manufacturing. Fits and tolerances are used in most of the items you use today.
Impressions 