What is it?

Obtaining of physical jewellery models. Previously modelled digitally in 3D, they are manufactured by means of 3D printing and sent to the client by postal service.

It implies two stages:

  • 3D printing: the printer produces the physical model automatically.
  • post-treatment: textures and other printing defects are evened out manually (for instance, by sanding), treated chemically (for example by applying ammonia steam), and others.

 

Which kind of technology and accuracy?

Among the different technologies available for 3D printing, it is convenient to use the most accurate in the case of jewellery, which is stereolithography (SLA). It allows reaching a level of accuracy below one hundredth of a millimetre (approximately 40 microns), similar to the accuracy obtained by means of craftsman modelling (half of a tenth of a millimetre, which equals 50 microns).

 

In which material and what is their purpose?

There are two main families of materials used in jewellery:

  • wax, suitable for further casting and reproduction in metal (silver, gold, bronze, etc) whether it is to obtain:
    • unique jewels.
    • Or models in metal for moulds aimed at serial production.
  • Hard resin, suitable to obtain the rubber or silicone moulds, without resorting to casting the metal model. Its greater mechanical resistance and high melting point enables the application of the pressure and temperature needed for the vulcanization of the rubber mould.
    It is verified that both options are suitable in order to obtain moulds, each one of them having its pros and cons.

Please do not hesitate to refer to us to choose the best option for your project.