Explore the construction of a massive 3D printer with a 1000x1000x1420 mm print volume in this detailed video tutorial. Learn about the custom-designed and 3D-printed components, including the powerful bed frame lifted by four Nema23 motors with a 47:1 gear ratio. Discover the use of a Slice Engineering magnum plus hotend and Duet3 MBHC controller. Follow the step-by-step process of building the frame, installing motors, adding bracing, wiring, and calibrating the printer. Witness the impressive strength of the bed as it demonstrates its ability to lift a human. Gain insights into overcoming setbacks and fine-tuning the printer for optimal performance.