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

This pack includes 2 models 1 for 1mm stones and other for 1.3mm stones

All Messurments in Pictures

This for links size of 13mm

Stones information:

Size: 1mm round stones in total 301 - stones weight 1.16 ct tw1.3mm round stones in total 217 - stones weight 1.79 ct tw

Metal Weights: 14K - 14.8 grs / 9.5 DWT 10K - 13.1grs / 8.4DWT

Need a custom design or modification feel free to ask me

Another Sizes avaible

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