Methods and arrangements relating to edge machining of building panels

A method for producing a mechanical locking system in a floor panel comprising a core having a core surface, the mechanical locking system comprising components on a first edge and a second edge of the floor panel for horizontal locking of the floor panel with other similar floor panels at a vertical plane, the components comprising a tongue on one of the first edge or the second edge, a tongue groove on the other of the first edge or the second edge, and a locking element locking surface on a locking element of a locking strip on the first or second edge, the tongue and tongue groove being configured to vertically lock the floor panel with the other similar floor panels, wherein the tongue groove has an opening facing toward a horizontal end of the other of the first edge or the second edge, the locking element locking surface configured to horizontally lock the first or second edge of the floor panel with a first adjacent edge or a second adjacent edge of similar floor panels to prevent a relative displacement of the first or second adjacent edge and the first or second edge outwardly away from each other, the method comprising:

• displacing the floor panel in a feeding direction relative to non-rotating chip-removing surfaces located along the feeding direction to remove the core of the floor panel from at least the core surface and extending continuously to the locking strip, to form via the non-rotating chip-removing surfaces at least a part of the locking element locking surface, and to form a majority of the tongue groove using the non-rotating chip-removing surfaces.