/r/mechanical_gifs: 100% Non-Organic .gifs - This sub is for .gif/.gifv/silent .mp4 images that contain a subject matter of mechanical origin. - September 9, 2022 - 17:01
/r/ManufacturingPorn: Manufacturing Porn - How Things Are Manufactured - Everything related that serves your obsession for manufacturing and industrial process. Inspired by Discovery Network's "How It's Made". - September 9, 2022 - 17:01
/r/toolgifs: Tool Gifs - Tool, machine, and manufacturing gifs. Sometimes entertaining, always educational. - September 9, 2022 - 17:00