This one is one of the best designs for cuban links locks very sturdy and already produced and working pretty good. 3 Parts Model

All Messurments in Pictures

This for links size of 10mm

Stones information:

1.2mm round stones in total 111

Metal Weights: 14K - 11.8grs 10K - 10.5grs

15mm Cuban Lock:https://www.cgtrader.com/3d-print-models/jewelry/necklaces/15mm-cuban-links-or-bracelet-locks

17mm Cuban Lock:https://www.cgtrader.com/3d-print-models/jewelry/brooches/17mm-cuban-link-lock-large-version-3-parts

23mm Cuban Lock:https://www.cgtrader.com/3d-print-models/jewelry/brooches/23mm-full-stones-cuban-links-lock-3d-print-model

More of my models at:www.cgtrader.com/ferocar