Machining method and apparatus

Apparatus for machining a workpiece (2), the apparatus comprising:

• a first cutting tool (6);
• a second cutting tool (18);
• one or more processors (10) configured to:
• store a tool path for a cutting tool (6), the tool path being a path along which a cutting tool (6) is to be moved during machining of the workpiece (2), wherein the tool path comprises a plurality of tool path segments (26, 28, 30), each tool path segment (26, 28, 30) comprising an entry point, wherein the entry point of a tool path segment (26, 28, 30) is a point on that tool path segment (26, 28, 30);
• and
• store, for each tool path segment (26, 28, 30), an entry path (32, 34, 36), wherein the entry path (32, 34, 36) of a tool path segment (26, 28, 30) is a path for a cutting tool (6) from a point that is remote from the workpiece (2) to the entry point of that tool path segment (26, 28, 30);
• and
• a controller (8) configured to:
• move the first cutting tool (6) along the tool path from a first point on the tool path to a second point on the tool path;
• as the first cutting tool (6) is moved from the first point to the second point, machine, using the first cutting tool (6), the workpiece (2);
• after the first cutting tool (6) has been moved to the second point, move the first cutting tool (6) to a point remote from the workpiece (2);
• move the second cutting tool (18) along the entry path (32, 34, 36) of the tool path segment (26, 28, 30) in which the second point is located from a point that is remote from the workpiece (2) to the entry point of the tool path segment (26, 28, 30) in which the second point is located;
• and
• move the second cutting tool (18) along the tool path from the entry point of the tool path segment (26, 28, 30) in which the second point is located to the second point.