Apparatus and associated methods for a user configurable modular 3D layering system provide a modular frame assembly, and two or more deposition print heads that are user-configurably disposed along an X-axis carriage drive system. A deposition-receiving tray may have a configurable Z-axis throw. In an exemplary embodiment, an X-axis carriage drive system may include one or more sensors for detecting a starting position of the print heads. For example, the sensor may be a micro-switch engageable by one or more print heads. In an exemplary embodiment, the print heads are removable from the X-axis carriage assembly. In some embodiments, each print head may operate independently of adjacent print heads. In an exemplary embodiment, each print head may include an injection nozzle for depositing the filament. In some embodiments, a y-carriage assembly may include a height sensor for the tray.
