noun
armature
AR-muh-cher/ˈɑːrmətʃər/
An internal framework that supports a sculpture or model.
The wire-and-wood armature supports the unfinished clay sculpture from inside.

Etymology
Latin armatura meant armor or equipment, and English also used the word for protective coverings. The electromagnetic sense is documented, though the supplied evidence does not explain the shift to an internal supporting framework.
In context
In this case, we use that same kind of G-code clay pattern at a micro scale to create an armature around which we could onto which we could apply local clay.
More examples
- A sturdy armature supports the large figure.
- She adjusts the armature to change the model's pose.
- The studio stores unfinished sculptures on metal armatures.
Forms
armature · armatures
Similar words
- framework
- A general supporting structure rather than specifically a sculpture's core.
- skeleton
- A bodily support structure, also used figuratively for frameworks.