A method for producing a part by molding with an embedded 2D barcode defined in the surface of the part and the embedded 2D barcode subsequently being readable using a light source and a camera, the method including providing a mold with an array of individual areas of optical anisotropic surface structures, where at least a number of the individual optical anisotropic structures forms a two-dimensional barcode or data matrix; making a replica of the mold, the replica including the array having the property that the directional reflection coefficient of the individual areas of optical anisotropic surface structures is depending on the illumination angle and detection angle in a way that is not rotational symmetric around the axis normal to the surface of the replica, the array being readable by illumination and detection of reflection intensity of the illumination source under a non-normal angle to the surface of the replica.

A mould element (2) for a mould for a tire comprising a marking (20), the mould comprising a shell intended to mould the sidewall (10) of the tire (1). The mould element (2) is a removable insert intended to be mounted in a housing of the shell, and the marking (20) is intended to mould on the tire a coded matrix symbol that contrasts with the sidewall of the tire, the marking (20) comprising a first set of cavities (201) or of protuberances (202) which is designed to mould dark parts of the coded matrix symbol (5).

A computer-implemented method for marking an object on an aligner. The aligner surface is modeled. The method includes calculating a normal for each tile in a tessellated surface and disqualifying a tile from being selected. For tiles not disqualified, a patch is identified that produces a markable area. The method includes selecting an object to be marked, calculating a location of the object in the markable area, and providing the location of the object to a marking device. Disqualifying includes comparing an angle between a normal and an orientation of the beam to an origin of the calculated normal on each tile. Disqualifying includes disqualifying the at least one tile when the angle is outside of a range of 90 to +90. Identifying the patch includes separating the patch into at least two smaller patches, and one of the two smaller patches of tiles is the markable area.

The present invention refers to a method to produce parts by shaping and curing a raw material comprising the steps: a batch of raw material is produced; at least one cure property of the raw material of the sample is determined; shaping the raw material; the time required for the shaped raw material to cure is determined taking into account the at least one cure property; curing of the shaped raw material until the determined time has elapsed.

The present invention also refers to a database and a system for producing such parts.

Making a dendritic identifier includes compressing a drop of liquid between a surface of a stamp and a surface of a substrate, and separating the stamp and the substrate to yield a dendritic identifier on the surface of the substrate.

Making a dendritic identifier includes compressing a drop of liquid between a surface of a stamp and a surface of a substrate, and separating the stamp and the substrate to yield a dendritic identifier on the surface of the substrate.