Method of, system and computer program for machine cutting several parts of a piece of material using controlling rules and variables for cutting

A non-transient computer-readable medium or non-transient computer-readable media data representing code instruction sets configured for execution by a processor in a computer, wherein said instruction sets cause the processor to:

• perform a cutting operation according to a set of controlling rules and variables for cutting two dimensional shapes or patterns, where one rule or a combination of several rules are used for the cutting operation depending on the shape or pattern to be cut, said shape or pattern forming said parts out of said piece of material,
• wherein said set of controlling rules comprises rules for the forming of a cluster of parts with free form shapes, said parts being separated by one cut from the cutting beam and positioned so close to each other so that only a thickness of said one cut from a single pass of the cutting beam is found between adjacent parts whenever the shape of said parts allows it,
• wherein said set of controlling rules comprises a rule for cutting angles, said rule stating that an angle is cut in two cuts, wherein both cuts lead into the tip of the angle, or one cut leads into the angle and one cut leads away from the angle, and wherein the at least one cut leading into the angle does not lead all the way to the tip of the angle, thus leaving a micro joint in the tip of the angle, or wherein one or both of the cuts leads past the tip of the angle.