Hohlraum Filament Dryer

The Hohlraum is a compact filament dryer capable of quickly reaching and precisely maintaining temperatures up to 150C, well beyond the capabilities of existing filament dryers. It is the only dryer on the market capable of preparing advanced filaments that would otherwise require expensive, large blast ovens. It constantly weighs the spool, allowing moisture elimination to be tracked. It reports statistics (and can be controlled) using MQTT or the builtin HTTP server. Fan or spool rotation failures are detected and handled, ensuring users never return to a melted spool or fried hardware. All this at less cost than other premium filament dryers, and a maximum power draw of less than two amps at 120V. The enclosure and internal components are printed using nylon infused with carbon fibre.