Abstract: A position correcting system, method and tool for guiding a tool during its use based on its location relative to the material being worked on. Provided is a system and tool which uses its auto correcting technology to precisely rout or cut material. The invention provides a camera which is used to track the visual features of the surface of the material being cut to build a map and locate an image on that map used to reference the location of the tool for auto-correction of the cutting path.

Abstract: Cement or other liquid-like material fills the hollow tubes of a machine tool under construction. The machine tool structures are held rigidly against a fixture while the substance dries. The machine tool so constructed is relatively lightweight and rigid, and obviates the need for precision machining of large portions of the apparatus.

Abstract: In exemplary implementations, tension is applied to a motion transmission element with periodic features by causing that element to mesh with a device that has a pitch slightly greater than the pitch of the motion transmission element. The motion transmission element with periodic features may include, for example: a belt with teeth, or a chain. Further, the motion transmission element may comprise either an open or a closed loop. In exemplary implementations, the width of the teeth of the motion transmission element is greater than the width of the teeth in the rack. This allows room for the teeth of the rack to both fit and move within the gap between the teeth in the motion transmission element. This extra width of the element's teeth is not necessary if the element is sufficiently elastic.

Abstract: A position correcting system, method and tool for guiding a tool during its use based on its location relative to the material being worked on. Provided is a system and tool which uses its auto correcting technology to precisely rout or cut material. The invention provides a camera which is used to track the visual features of the surface of the material being cut to build a map and locate an image on that map used to reference the location of the tool for auto-correction of the cutting path.

Abstract: In exemplary implementations of this invention, tension is applied to a motion transmission element with periodic features by causing that element to mesh with a device that has a pitch slightly greater than the pitch of the motion transmission element. The motion transmission element with periodic features may comprise, for example: (a) a belt with teeth, or (b) a chain. Further, the motion transmission element may comprise either an open or a closed loop. In exemplary implementations, the width of the teeth of the motion transmission element (along that element's long axis) is greater than the width of the teeth in the rack (along the rack's long axis). This allows room for the teeth of the rack to both fit and move within the gap between the teeth in the motion transmission element. This extra width of the element's teeth is not necessary if the element is sufficiently elastic.