When you want to build a large format 3D printer, you can’t just scale up ... [Dr. D-Flo] went with a stationary bed design, with the extruder pushed around by seven high torque NEMA23 motors ...

Check out this 3D printer (translated ... move the extruder along the X and Y axes are themselves stationary. One large timing (toothed) belt makes a circuit around the top of this cube in ...