3D Printing Pen

FIG. 1 is a front, top and right side perspective view of a 3D printing pen, showing our new design;

FIG. 2 is a perspective view with the pen inserted into a stand thereof;

FIG. 3 is a rear, bottom and left side perspective view of the pen thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a rear view thereof;

FIG. 6 is a left side view thereof;

FIG. 7 is a right side view thereof;

FIG. 8 is an enlarged top plan view thereof; and,

FIG. 9 is an enlarged bottom plan view thereof.

The broken lines illustrate environment and form no part o 1 the claimed design.