Can you use 3D printer plastic for 3D pens?

Yes, you can generally use 3D printer plastic for 3D pens, as both typically utilize similar thermoplastics like PLA and ABS. However, it's essential to ensure that the filament diameter matches the specifications of the 3D pen, usually around 1.75 mm. Additionally, some 3D pens may have specific requirements regarding filament type, so always check the manufacturer's recommendations for compatibility.