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Gage Repeatability and Reproducibility (R&R) studies measure the amount of measurement variation that is attributable to each operator (reproducibility) and to the measurement device (repeatability). Gage R&R's are critical components of any continuous improvement program. However, companies often shy away from them due to the perceived complication, required resource effort or lack of understanding of their benefit. "The tool is important in understanding variation in our process, but we don't have the time or people skilled enough to perform them!" For only $20, you can download this template (see screen shots below) and have immediate results of your study! No statistical knowledge needed. The summarized results make it easy to see where you need to focus your effort on improving the variation! The No expensive software to purchase, just a simple solution to your needs. This template is exactly what you would create on your own, if only you had the time. We have done all the hard work for you, so just follow these simple steps... The template has three worksheets: Calculations - This is where you enter the data, and where all the number crunching takes place behind the scenes. d R&R Pie Chart - a pie chart comparing the repeatability, reproducibility and part variation. The image below shows an example of this chart. . Step 1 - Determine the size of your Gage R&R study (you can choose between 2-3 operators, 2-3 trials per part, and between 2-10 parts). A good recommendation is to use 3 operators, 3 trials and 5 parts (45 data points). Enter this information at the top of the template (shown below) Step 2 - Add the correct operator name or ID in the blue boxes, along with the collected data into the appropriate section of the template Step 3 - Enter the specification limits of the parts being used. This will help determine the percent of Gage R&R variation compared to the tolerance width. Step 4 - Review the calculations provided by the template and decide whether your measurement process is adequate for these parts. Based on these results, this measurement process has an allowable amount of gage variation. Repeatability and Reproducibility are about the same, so a similar amount of variation is coming from the operators as it is from the measurement device.
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Gage R&R Template
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