Disclosed is a method for dressing a single- or multi-thread grinding worm (34) in which a main rolling movement between the grinding worm and a gear-like dressing tool (90) is brought about. In order to create flank modifications on the grinding worm, an additional relative movement is superimposed on the main rolling movement. In addition, an auxiliary drive specifically designed for such a method, a correspondingly designed machine tool and a dressing tool for carrying out the method are disclosed.

The present disclosure relates to a method for dressing a multithread grinding worm, in which a flight of the multithread grinding worm is machined by means of a dressing tool. During machining of the multithread grinding worm, one of several flights of the grinding worm is eliminated, so that the number of flights of the grinding worm is reduced, thereby increasing the service life of the dressing tool and reducing the number of dressing tools to be kept in stock.