Abstract: A first computer-aided design (CAD) model to represent a physical object is received that includes a triangle mesh with boundary condition faces. Thereafter, the triangle mesh is smoothed such that the boundary condition faces are maintained. The smoothed triangle mesh is then segmented. As part of such segmenting, a plurality quads are generated. Each of the quads is then fitted with a non-uniform rational basis spline (nurbs) patch. A second CAD model is next generated to represent the physical object which is based on the plurality of quads fitted with nurbs. Related apparatus, systems, techniques and articles are also described.

Abstract: Computer-implemented systems and methods for preparing a virtual three-dimensional (3D) object for 3D printing are provided. A hollowed-out representation of an input model is generated. The input model defines a solid virtual 3D object, and the hollowed-out representation comprises a shell and an internal volume that is a void. The internal volume is meshed to generate a polygonal mesh representation of the internal volume. A lattice microstructure corresponding to the polygonal mesh representation is generated by (i) replacing each edge of the polygonal mesh representation with a solid part, and (ii) uniting the solid parts to form the lattice microstructure. A lightweight representation of the input model is generated, where the lightweight representation comprises the shell and the lattice microstructure.

Abstract: Computer-implemented systems and methods for preparing a virtual three-dimensional (3D) object for 3D printing are provided. A hollowed-out representation of an input model is generated. The input model defines a solid virtual 3D object, and the hollowed-out representation comprises a shell and an internal volume that is a void. The internal volume is meshed to generate a polygonal mesh representation of the internal volume. A lattice microstructure corresponding to the polygonal mesh representation is generated by (i) replacing each edge of the polygonal mesh representation with a solid part, and (ii) uniting the solid parts to form the lattice microstructure. A lightweight representation of the input model is generated, where the lightweight representation comprises the shell and the lattice microstructure.

Abstract: The present invention relates to a method and system for updating a CAD model. The method and system generate a parameterization of each respective face of at least one FEA model, each respective face of the at least one FEA model corresponds to a respective geometric face of a CAD model to be updated and each face of the at least one FEA model has a respective shape. Next, a respective shape function for at least one face of the at least one FEA model is determined using the respective shape of the at least one face and the corresponding generated parameterization. The determined shape function describes the shape of the at least one face. The CAD model is then updated using the determined shape function.

Abstract: A measuring arrangement in the form of a measuring counter, a measuring slide or a measuring screw. The measuring arrangement comprises a housing in which a measuring unit, a transmission circuit and a receiving circuit are arranged on a common conductor plate. The transmission circuit and the receiving circuit use a common conductor plate antenna which is also provided on the conductor plate. A voltage supply circuit for supplying a voltage to the measuring unit, the transmission circuit and the receiving circuit is also arranged on the conductor plate. Via a measurement value sensor at the housing a measurement value is detected and converted by the measuring unit into an electrical measurement signal and transmitted via the transmission circuit wirelessly to an external central unit.

Abstract: A measuring arrangement in the form of a measuring counter, a measuring slide or a measuring screw. The measuring arrangement comprises a housing in which a measuring unit, a transmission circuit and a receiving circuit are arranged on a common conductor plate. The transmission circuit and the receiving circuit use a common conductor plate antenna which is also provided on the conductor plate. A voltage supply circuit for supplying a voltage to the measuring unit, the transmission circuit and the receiving circuit is also arranged on the conductor plate. Via a measurement value sensor at the housing a measurement value is detected and converted by the measuring unit into an electrical measurement signal and transmitted via the transmission circuit wirelessly to an external central unit.

Abstract: A computer readable storage medium includes executable instructions to obtain an orbital path shape. Each point on the orbital path shape represents a displacement of the tool shape when the tool shape is moved along the orbital path shape The tool shape, when moved along the orbital path shape, sweeps out a desired cavity shape. The executable instructions further include instructions to obtain an input solid model corresponding to the desired cavity shape to be swept out and derive a set of faces for a solid model of the tool shape based on the orbital path shape and a set of faces, a set of edges and a set of vertices corresponding to the input solid model. The executable instructions further include instructions to combine a subset of the set of faces derived for the tool shape to generate the solid model of the tool shape. In one embodiment, the tool shape corresponds to a Minkowski decomposition of the input solid model with respect to the orbital path shape.

Abstract: A distance measuring instrument has a measuring axis; a measuring spindle disposed rotatably and shiftably in a housing such that a rotary motion of the measuring spindle results in a corresponding shift of the measuring spindle along the measuring axis; a stationary sensor element which is immobile relative to the housing and a movable sensor element which is connected to the measuring spindle to rotate therewith and which is shiftable relative to the measuring spindle along the measuring axis; and a guiding device for guiding the relative shifting motion between the movable sensor element and the measuring spindle, and having a guiding sleeve connected to the movable sensor element for rotation therewith; the guiding sleeve has an inner groove which extends parallel to the measuring axis and a guiding member which is connected to the measuring spindle for rotation therewith and which projects shiftably into the inner groove.

Abstract: A distance-measuring precision instrument has a threaded measuring spindle supported in a housing, a sensor device which detects the rotary motion of the measuring spindle and which has a stationary sensor element immobile relative to the housing and a movable sensor element secured to the measuring spindle for rotation therewith. Between the two sensor elements a clearance of predetermined width is provided. The instrument further includes a driving and guiding device for transmitting the rotary motion of the measuring spindle to the movable sensor element and for guiding a relative translational movement between the two. According to the invention the driving and guiding device has a guiding sleeve which is affixed to the movable sensor element for rotation therewith and which is provided with an inner groove extending parallel to the measuring axis. The device further includes a guiding member coupled to the measuring spindle for rotation therewith.