3D pens condense the idea of a 3D printer into a single pen. Instead of machine code dictating what design is 3D printed, a 3D pen is directly controlled by the artist. It’s been likened to drawing, but in three dimensions rather than two.
Plastic filament is stored in the pen. At the press of a button, the filament is melted and goes out the tip, allowing you to draw and doodle to your heart’s desire. The melted filament cools very quickly in air, making it easier to extrude in three dimensions.
The good thing about 3D pens is that they’re a unique form of 3D printing and super fun to play with. However, they’re notoriously hard to control finely, especially if you’re trying to draw in thin air. Easy to learn, but hard to master!
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