3D Printer

FIG. 1 is a front view of a 3D printer, showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is a left side elevation view thereof;

FIG. 6 is a right side elevation view thereof; and,

FIG. 7 is a perspective view thereof.

The broken lines show portions of a 3D printer that form no part of the claimed design.