An inventor has showcased a “filament dryer that pays you bitcoin.” When this news popped up in our feed we weren’t surprised to see that PizzAndy from Proof Of Print was the brains behind it. It’s the same guy who created the 3D printer that mines Bitcoin . Moreover, it very likely uses the same principle of taking waste heat / watts from crypto mining ASICs for use within the 3D printing process. Introducing another Proof Of Print prototype! A filament dryer that pays you bitcoin to keep your material desiccated. Maximize your sat stacking while you optimize your prints! Keep it dry!This prototype is 6 TH/s @ 140W. pic.twitter.com/JHOz3YrR9B April 19, 2026 A filament dryer? Tom's Hardware Premium Roadmaps A filament dryer is a desirable piece of equipment for 3D printing pros and hobbyists. It maintains the filament at a predefined controlled temperature. This stops the filament from absorbing moisture from the air. It is a more proactive step than simply keeping your filament in a decent storage box.…