John has been with ASSEMBLY magazine since February 1997. John was formerly with a national medical news magazine, and has written for Pathology Today and the Green Bay Press-Gazette. John holds a B.A. in journalism from Northwestern University, Medill School of Journalism.
Rotary indexing dials are ideal for automated assembly of small products with a few parts. However, if the product has more than eight components, a rotary indexing dial can become unwieldy. There’s simply not enough real estate around the dial for all the stations.
The goal of analyzing this data is to identify variation in the fastening process before faulty joints can be assembled. One way to do that is with statistical control charts called X-bar and R charts.
Watching astronauts Neil Armstrong and Buzz Aldrin walk on the moon captured my imagination in a way that no toy, television show or movie ever could. I wonder how many children in India will be similarly inspired by the success of that country’s first lunar mission?