To reduce complexity, should you specify fewer or more finished surfaces?

• A. Fewer
• B. More
• C. The same
• D. None

Answer: (A)

Reducing the number of surfaces that require finishing lowers manufacturing complexity because each finished surface adds processing steps, setup changes, and inspection requirements. Every additional finished surface may need its own machining, deburring, coating, polishing, or heat treatment, along with separate tolerances and surface quality checks. This can increase cycle times, tooling changes, fixture adjustments, and the risk of mismatches or defects between surfaces. By specifying fewer finished surfaces, you simplify the process, shorten lead times, and make quality control more straightforward. Only add finishes where they truly impact function or appearance.