3d printer with the ability to print composite plastics and plastic metal and plastic ceramics compounds through additive manufacturing

A method comprising:

• heating a build chamber and a print bed of a 3D printer comprising a frame, at least one panel removably coupled to the frame and defining a printing enclosure, the heated build chamber within the printing enclosure, the heated print bed defining a bottom of the heated build chamber, an extruder assembly, and at least one pellet feeder;
• and
• performing a print operation using the 3D printer, the print operation comprising moving the extruder assembly within the heated build chamber and feeding, by the at least one pellet feeder, pellets of work material to the extruder assembly.