0.40 mm Ultimaker print core for Ultimaker 3 and 5 Maximize print performance and machine uptime with our swappable, material-matching print cores. Set up your 3D printer in seconds, whether you need reliable build and support material combinations for geometric freedom, a different nozzle size, or to print in dual color. Delivering industrial-grade results Material-matching . Get quality, consistent results with customized nozzle geometries for different material types: non-abrasive plastics (AA), water-soluble support (BB), and abrasive composites (CC, for Ultimaker S5 only). Fast setup . Quickly swap print cores and switch between different material combinations to minimize downtime. More materials . Choose from a broad portfolio of Ultimaker materials or use with third-party filaments for properties to suit every application. Accurate temperature reading . Maintain the perfect temperature for an even better quality print – with automatic, accurate temperature readings. Nozzle size choice . Choose 0.25 or 0.4 mm for a higher level of detail and surface quality, or 0.8 mm for faster prints. Reliable and durable . Better 3D printing results, with a new silicone cover to protect the extruder. Lifetime support . Wherever you are in the world, our officially trained and certified partners offer free support – guaranteed for a lifetime.