The Fuse X1 build unit contains and transports prints throughout the Fuse X1 ecosystem. It is wheeled and mobile to easily move between the Fuse X1 during printing and Fuse Sift X1 for breakout, with blind-mate power and data connectors for ergonomic print changeovers. An insulated chamber allows the print to passively cool outside of the printer, enabling the next print to start with minimal downtime.