Printing an Underwater Diving Helmet With Floating Air Supply <img width="800" height="507" src="" alt=""/>Old-school diving helmets are deceivingly simple, even if they are – as [Hyperspace Pirate] puts it in a recent video – essentially the equivalent of an upside-down bucket with an https://hackaday.com/2026/03/11/printing-an-underwater-di… https://hackaday.com/2026/03/11/printing-an-underwater-di…