MET 426 CNC Machining Resit 2021

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MET 426: A 2-page Resit Examination for CNC Machining (MET426), University of Buea, Level 400, instructor Tsamo Nestor, dated August 2021, 2 hours, 3 credits. Part One: five short questions on writing a Numerical Control program, the meaning of a Digital Order ADDRESS with an example, CAD/CAM programming techniques, application areas of G-code programming, and how to optimise CAD/CAM programming costs. Part Two: a contextual multi-view diagram (front, side and top views) of a workpiece with six labelled tool-path points (1-6), requiring the student to fill in a coordinates table (Table 1) and complete an ISO G-code program block (Table 2) for a milling cutter at S=2500 rpm, F=300 mm/min.