Ep 21. Belts, 3D Metal Printers, Detectable Warning Panels, Model Stirling Engines

Belts are an essential part of everyday wear, and this episode of How It's Made takes a close look at the process of manufacturing them. Viewers get an in-depth look at all the stages involved in creating a range of belts from leather to fabric. The episode starts by detailing how leather belts are made from raw hides. After the hides are cleaned, tanned, and dyed, they go through several stages of different processes to create the final product. Viewers will see how the belt is cut, stitched, and embossed with logos and designs.

Next up, the episode takes viewers behind the scenes to discover how 3D metal printers work. The manufacturing process can be tricky, but this episode breaks it down into manageable steps. The episode explains how the printer uses a process of selective laser sintering to create complex shapes from powdered metal. It may sound complicated, but the episode breaks down this complicated process in a way that is easy to understand.

After 3D metal printers, the episode moves on to another type of metal production: detectable warning panels. These panels are a required safety feature in public spaces, adding tactile warning elements to help visually impaired people navigate. The process of making detectable warning panels involves several steps, including the manufacture of the tactile elements and the application of epoxy resin to the surface for added durability. Viewers will be fascinated to see how these warning panels are created in such detail.

Finally, the episode concludes with an exploration of model Stirling engines. These heat-powered engines are an intriguing example of how energy can be transformed and put to use. The episode explains how these engines work, and how they differ from other types of engines. Additionally, viewers get to see how these engines are made, from the initial CNC cutting of the metal to the final assembly of the engine.

Overall, this episode of How It's Made is a fascinating look at the many different manufacturing processes that are involved in creating everyday products. Each segment is informative and engaging, and viewers will come away with a new appreciation for the sophistication that goes into creating these products. The series has a reputation for exploring the mechanics of everyday objects in its signature, mesmerising style, and this episode won't disappoint. From a look at how household leather belts are made to delving into the intricate construction of 3D metal printers, this episode offers an exciting glimpse into the world of manufacturing.