Automated Gemstone Production

Fraunhofer ITWM

The gemstone originates from an unmachined part coming from the dissection. When crafting manually the part is preformed, in a second step, the individual facets are cut and, finally, polished. In this project we develop the first automation of this production process. Here, high-precision cutting robots generate the facets based on optimal facetings and polish them afterwards. A preceding preforming is not necessary anymore. The goal is to develop a machine to be sold at gemstone producers all over the world.

The challenge is the physical modeling of the cutting and polishing process, which is a precondition for an appropriate controlling of the robotics. Also the mechanical implementation are to be derived in elaborate experiments. With this we can reproduce the abilities of the manual grinder with machines and exceed their precision in a clearly observable way. 

The project splits into three sub-projects:

Project partner