What is a 3D printing pen used for?

A 3D printing pen is specifically designed to extrude melted filament, allowing users to create three-dimensional structures in a hands-on manner. This tool operates similarly to a traditional hot glue gun, where the filament is heated, melted, and then extruded through a nozzle. Users can literally draw in three-dimensional space, crafting sculptures, prototypes, or intricate designs freehand. This hands-on approach emphasizes the creative and artistic potential of 3D printing technology, providing an engaging way for individuals to explore additive manufacturing concepts.

In contrast, designing 3D models on a computer involves using CAD software rather than the 3D printing pen itself. Smoothing 3D prints typically relates to post-processing techniques that enhance the surface finish of printed objects but is not a function of the pen. Likewise, calibrating 3D printers is a separate process aimed at ensuring the printer operates correctly, involving adjustments and measurements rather than the creative application of filament that the pen provides.