3D Printing Pen — Draw Physical Objects in Three Dimensions

A pencil draws on paper. This draws in space.

A 3D printing pen extrudes heated PLA filament that cools and solidifies in seconds, allowing you to draw freestanding three-dimensional structures in the air. It is the most tactile way to understand geometry, topology, and spatial reasoning — build a model of a molecule, construct a physical graph of a function, repair a broken plastic part, or just create.

What you can make:

• 3D models of mathematical surfaces (Möbius strip, Klein bottle cross-section, saddle points)
• Molecular and crystallographic structures
• Architectural and engineering models
• Physical prototypes for design testing
• Art and sculpture
• Structural repairs to existing plastic objects

Specifications: Compatible filament: PLA and ABS · Nozzle temperature: 160–230°C (adjustable) · Speed: 6 levels · OLED temperature display · USB-C powered · 0.7mm nozzle diameter · Includes: 10 colour PLA filament samples (1m each) · Stencil mat

Lower operating temperature than a hot glue gun. Safe for ages 12+.