A process for automatically matching at least two substantially cylindrical surfaces, for engaging each other, for mechanical embossed engraving of a roll with an engraving tool, using ranges of freedom of a knurling tool, said process comprising starting, repetitive and final steps, including:
- mechanizing and subjecting said ranges of freedom to electronic control, by providing a hardware structure, available to materialize a software which, each time, can understand the design being engraved, and
- controlling the starting, repetitive and final steps, complying with spaces and times, in an automatic mode, said step of controlling including the step of braking of said knurling tool between each repetitive step to maintain a pattern in said knurling tool aligned with a pattern engraved on said roll.