3D 3D printer HAVING SYSTEM a plurality of nozzle assembly replacement

摘要

The present invention relates to a 3D printer and, more specifically, to a multi-nozzle replacement type 3D printer in which a plurality of replaceable nozzle assemblies are provided. A nozzle replacement system has a technical difficulty in that the position of a nozzle must be precisely matched every time the nozzle is replaced, but the 3D printer according to the present specification is capable of precise connection.