e3D™ hotends: The newest version of the BCN3D hotends has been optimized by the global specialist e3D™. Thanks to the superb e3D’s machining and engineering know-how, which ensure the highest quality standards, the hotends provide a smooth and reliable extrusion under different printing environments. Filament Runout sensor: A mechanical switch to detect filament presence, allowing to prevent from one of the most common and frustrating failure reasons. In case of running out of filament during a print job, the printer will automatically pause and warn the user to load new filament to resume the print, letting to save time and money. New graphic user interface: The refined R19 GUI and UX include new informative screens, maintenance recommendations and guided assistants, as well as access to advanced printing settings.