Patent ID: 6966731

Claim:
A cutting tool and track system, comprising: at least one track element configured to be attached to a surface of a workpiece, the at least one track element including a track member and a rack member supported along the longitudinal length of the track member and defining a transport path; a carriage assembly configured to ride along and to be guided and supported by the at least one track element; a carriage drive mechanism arranged to drivingly engage the carriage assembly and to drive the carriage assembly along the at least one track element; a cutting tool assembly carried by the carriage assembly, the cutting tool assembly including a cutting tool arranged to be rotated about a longitudinal axis and to be fed both along its axis of rotation and transversely of its axis of rotation for cutting a workpiece through a wall thickness of the workpiece; and a tool driving system connected to and arranged to transmit rotary input motion to the cutting tool; and wherein the carriage assembly includes at least one bearing assembly that is spring-biased into contact with the track member, the contact pressure of the at least one bearing assembly relative the track member being adjustable via an adjustment structure, said contact pressure being able to be fixed via a fixation device.