Material extrusion system and device using the same

Abstract

A material extrusion head (100) comprising a tube portion (10) including a material feeding path adapted to receive some extrusion material from one or multiple reservoirs on one proximal end and exit said extrusion material nozzle on one distal end, a heat source adapted to generate heat and transmit said heat to the extrusion material passing through the tube portion by conduction and convection through the tube portion, wherein the tube portion presents an irregular inner surface comprising at least one protrusion within the material feeding path using interlocking elements to lock in place the extrusion material nozzle without the use of tools.

Dependencies are inferred from the claim text.