Ruth's sister 3D printing pen nozzle first generation internal power cable

First-generation 3D pen nozzle

This replacement nozzle is made for the first-generation 3D printing pen. It suits hobbyists and educators who need a spare part to keep their existing tool working. The component is moulded from high-temperature resistant plastic and ships as a single unit without retail packaging.

Thermal limits of the plastic body

The nozzle relies on its plastic construction to conduct heat away during extrusion. Because the material softens above its rated temperature, sustained high-temperature printing can degrade the part faster than a metal alternative. Users should monitor extrusion temperature and allow cooling periods to extend service life.

Replaces a worn or broken first-gen tip

This part directly substitutes the original nozzle on a first-generation pen; it does not fit second-generation models. The upgrade is worthwhile when the existing tip shows clogging, deformation or reduced flow that cleaning cannot fix. Buyers needing a second-generation compatible nozzle must look elsewhere.