Stack lights are found everywhere in industry. And for a good reason. They are a quick and easy way to visualize the status of a machine, which otherwise would need some effort to see. They are—sort of—a mini-andon. While sometimes underappreciated, they do serve a valuable purpose in the factory, and they usually do a good job. Let’s have a look at stack lights!
Andon
The Toyoda Model G Loom (with Videos)
Toyota Motor originated from the Toyoda loom factory, where Sakichi Toyoda invented looms. Probably the most famous one is the Toyoda Model G Automatic Loom. This loom touches on many points that are part of the Toyota Production System and lean manufacturing. During my last visit to Japan in September, I made some videos detailing many of the features of the Toyoda Automatic Loom from 1924. Be advised: Lots of images and videos ahead!