Paper Cutting Exercise

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# Paper Cutting Exercise - PowerPoint PPT Presentation

Paper Cutting Exercise. Exercise objective: Perform and Analyze a variable MSA Study. 1. Cut a piece of paper into 12 different lengths that are all fairly close to one another but not too uniform. Label the back of the piece of paper to designate its “part number”

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Paper Cutting Exercise
• Exercise objective: Perform and Analyze a variable MSA Study.
• 1. Cut a piece of paper into 12 different lengths that are all fairly close to one another but not too uniform. Label the back of the piece of paper to designate its “part number”
• 2. Perform a variable gage R&R study as outlined in this module. Use the following guidelines:
• Number of parts: 12
• Number of inspectors: 3
• Number of trials: 5
• 3. Create a MINITABTM data sheet and enter the data into the sheet as each inspector performs a measurement. If possible, assign one person to data collection.
• 4. Analyze the results and discuss with your mentor.

Attribute Gage Error

Repeatability

Reproducibility

Calibration

Attribute MSA
• A methodology used to assess Attribute Measurement Systems.
• They are used in situations where a continuous measure cannot be obtained.
• It requires a minimum of 5x as many samples as a continuous study.
• Disagreements should be used to clarify operational definitions for the categories.
• Attribute data are usually the result of human judgment (which category does this item belong in).
• When categorizing items (good/bad; type of call; reason for leaving) you need a high degree of agreement on which way an item should be categorized.
Attribute MSA Purpose
• The purpose of an Attribute MSA is:
• To determine if all inspectors use the same criteria to determine “pass” from “fail”.