Patent ID: 9519282
Filing Date: 2016-12-13
CPC Classification: G05B

Claim Text:
1. A method for moving a tool of a CNC machine over a surface, wherein the CNC machine is provided with a sensor unit, the method comprising the steps of: (a) driving the tool over the surface in a predetermined direction and/or along a predetermined path; (b) treating the surface by the tool in accordance with a predetermined value of a treatment parameter; (c) determining, by the sensor unit, a response value indicating a response of the tool to the treating of the surface, and deriving a model of the surface based on the response value, wherein the model describes a shape of at least a part of the surface and is derived from data obtained from the sensor unit while the tool is driven over the surface, the data comprising data indicating a deflection of the tool or a force experienced by the tool when treating the surface; and (d) determining a new direction and/or a new path based on the response value and on the model, and adapting the treating of the surface to working conditions which are encountered by the tool by changing direction of driving over the surface laterally with respect to the predetermined direction and/or the predetermined path, so as to treat the surface along a direction and/or a path that are/is different from the predetermined direction and/or path, such that a resulting treated path is different than the predetermined path.