A traditional positioning system used with compasses to transfer measured sculptural points from a model to stone.
Centina is one of the positioning systems used in traditional compass pointing. Le voci del marmo documents its use for placing additional capipunti and for locating a precise or “true” point on the model and transferring it to the marble.
Etymology
Italian centina commonly denotes a supporting or shaping frame; in this workshop context it names a positioning system used in pointing.
Sculptor Notes
The important idea is repeatability: a measurement becomes useful only when its spatial relationship to the reference framework can be recreated on the block.
References
https://levocidelmarmo.sns.it/lista_video.php