Three-dimensional Printer

FIG. 1 is a top, front, right side perspective view of a first embodiment of the three-dimensional printer according to our new design;

FIG. 2 is a top, rear, left side perspective view thereof;

FIG. 3 is a bottom, rear, left side perspective view thereof;

FIG. 4 is a bottom, front, right side perspective view thereof;

FIG. 5 is a front elevation view thereof;

FIG. 6 is a rear elevation view thereof;

FIG. 7 is a left side elevation view thereof;

FIG. 8 is a right side elevation view thereof;

FIG. 9 is a top plan view thereof;

FIG. 10 is a bottom plan view thereof;

FIG. 11 is a top, front, right side perspective view of a second embodiment of the three-dimensional printer according to our new design;

FIG. 12 is a top, rear, left side perspective view thereof;

FIG. 13 is a bottom, rear, left side perspective view thereof;

FIG. 14 is a bottom, front, right side perspective view thereof;

FIG. 15 is a front elevation view thereof;

FIG. 16 is a rear elevation view thereof;

FIG. 17 is a left side elevation view thereof;

FIG. 18 is a right side elevation view thereof;

FIG. 19 is a top plan view thereof; and,

FIG. 20 is a bottom plan view thereof.

The dash-dash broken lines illustrate portions of the three-dimensional printer that form no part of the claimed design. The dot-dash broken lines depict the bounds of the claimed design and form no part of the claimed design. The oblique shading represents a transparent or translucent appearance.