Abstract: A computer-implemented method includes obtaining an electronic design of a part geometry for a part for additive manufacturing; obtaining datum information indicating a sequence of one or more datums for the part geometry, obtaining a electronic scan mapping of an object additively manufactured according to the electronic design of the part geometry; sequentially aligning the electronic scan mapping to the electronic design of the part geometry according to the sequence of one or more datums indicated in the datum information; generating a deviation profile based on the alignment of the aligning the electronic scan mapping to the electronic design of the part geometry according to the sequence of one or more datums indicated in the datum information. The electronic design of the part geometry is adjusted based on the deviation profile to compensate for distortion. A further part can be manufactured based on the adjusted electronic design.

Abstract: Methods and systems are disclosed for generatively designing a model of an assembly of mechanical parts. One method includes receiving a first set of constraints for a first part; determining a spatial relationship between the first part and a second part; updating the first set of constraints for the first part based on at least the spatial relationship between the first part and the second part; updating a second set of constraints for the second part based on at least the updated first set up constraints and/or the spatial relationship between the first part and the second part; and generating a model for the first part based on the updated first set of constraints.

Abstract: The present invention is directed to systems and methods for automatically generating mechanical part designs and manufacturing specifications/instructions that account for geometric distortions that may occur during manufacturing or post-processing.

Abstract: A method of compensating for shrinking and distortion of an object resulting from a manufacturing process. A scan is performed of an object following a manufacturing process to produce scan data. The scan data is aligned to a part mesh of the object. The part mesh is adjusted to substantially coincide with the scan data by moving part mesh vertices. Delta vectors are computed by subtracting initial part mesh vertex positions from final part mesh vertex positions. The inverse of the delta vectors are applied to the preprocessed part mesh to give a scan adjusted pre-processed shape.

Abstract: A method of compensating for sintering warpage due to powder spreading density variations in binder jetting additive manufacturing, including receiving an initial design file defining an object geometry, representing the object geometry as a part mesh and filling the mesh with a grid of voxels to create a voxel grid, each voxel having at least one shrinkage coefficient. For each voxel, determining a distortion factor caused by a powder density variation induced during a powder spreading process and adjusting the at shrinkage coefficient of each voxel according to its respective distortion factor. Next, a shrinkage of the grid of voxels is simulated according to a sintering process. A negative compensation is applied to the voxel grid, according to the simulated shrinkage of the grid of voxels, to form a compensated voxel grid. Lastly, the change in the voxel grid is mapped to the compensated voxel grid onto the part mesh to create a pre-processed compensated part mesh.

Abstract: Systems and methods are disclosed for generating designs for mechanical parts in a computer aided design (CAD) context. One method includes generating a model of a mechanical part, the model including one or more cells, wherein each cell is comprised of a plurality of parameterized representations, each of the plurality of parameterized representations representing a material property; determining, for each cell, a cell-specific parameter value for each of the parameterized representations; comparing, for each cell, each of the cell-specific parameter values to a corresponding threshold parameter value associated with each of the representations of the material properties; and generating at least one additional cell or removing at least one of the one or more cells based on the comparison of each cell-specific parameter value to the corresponding threshold parameter value.

Abstract: Systems and methods are disclosed for generating designs for mechanical parts in a computer aided design (CAD) context. One method includes generating a model of a mechanical part, the model including one or more cells, wherein each cell is comprised of a plurality of parameterized representations, each of the plurality of parameterized representations representing a material property; determining, for each cell, a cell-specific parameter value for each of the parameterized representations; comparing, for each cell, each of the cell-specific parameter values to a corresponding threshold parameter value associated with each of the representations of the material properties; and generating at least one additional cell or removing at least one of the one or more cells based on the comparison of each cell-specific parameter value to the corresponding threshold parameter value.

Abstract: Methods and systems are disclosed for generatively designing a model of an assembly of mechanical parts. One method includes receiving a first set of constraints for a first part; determining a spatial relationship between the first part and a second part; updating the first set of constraints for the first part based on at least the spatial relationship between the first part and the second part; updating a second set of constraints for the second part based on at least the updated first set up constraints and/or the spatial relationship between the first part and the second part; and generating a model for the first part based on the updated first set of constraints.

Abstract: The present invention is directed to systems and methods for automatically generating mechanical part designs and manufacturing specifications/instructions that account for geometric distortions that may occur during manufacturing or post-processing.

Abstract: Systems and methods are disclosed for generating designs for mechanical parts in a computer aided design (CAD) context. One method includes generating a model of a mechanical part, the model including one or more cells, wherein each cell is comprised of a plurality of parameterized representations, each of the plurality of parameterized representations representing a material property; determining, for each cell, a cell-specific parameter value for each of the parameterized representations; comparing, for each cell, each of the cell-specific parameter values to a corresponding threshold parameter value associated with each of the representations of the material properties; and generating at least one additional cell or removing at least one of the one or more cells based on the comparison of each cell-specific parameter value to the corresponding threshold parameter value.

Abstract: Systems and methods are disclosed for generating designs for mechanical parts in a computer aided design (CAD) context. One method includes generating a mechanical part modeling design space including a first cell, the first cell comprised of a parameterized representation of a physical material property; determining, for the first cell, fixed location parameters and a first growth vector; receiving a target location inside the modeling design space; associating the received target location with the first growth vector; generating, along the first growth vector, a second cell, the second cell being positioned between the first cell and the target location; and generating a third cell positioned between the second cell and the target location.

Abstract: A process for simulating cellular growth is implemented to determine geometry of an object within a simulated environment. Seed cells, which represent starting points for a cell body, are defined within the environment. A number of constraints and parameters, such as forces and target locations, are also imposed on the environment. The body of cells is then grown within the simulated environment, spawning and destroying cells as needed to meet the imposed constraints. A stable structure meeting the constraints can be exported and fabricated, such as by a three-dimensional printer, to produce a corresponding a real-world object.

Abstract: A system and method for synchronizing data between two or more servers including replicating at least a portion of an original data set, associated with a first server, to provide a replicated data set, associated with a second server, the replicated data set based upon, at least in part, the original data set. One or more second-server commands executed on the replicated data set by the second server are stored. One or more first-server commands to be executed on the original data set by the first server, are provided in which the one or more first-server commands are based upon, at least in part, the one or more second-server commands. One or more first-server output objects, returned by the first server in response to the one or more first-server commands, are compared to one or more second-server output objects, returned by the second server in response to the one or more second-server commands.

Abstract: High reliability electrical connections between a helical strand and flat electrodes, such us strip electrodes found in implantable neurostimulator system, are described. The connection consists of a crimp joint in which an inside diameter mandrel is used to provided the coil with sufficient radial rigidity to ensure structural integrity of the crimp. The mandrel is made of a relatively soft biocompatible material that deforms rather than damages the fine wires of the helical strand during crimping. The crimping is accomplished by radial deformation of an annular or semi-annular crimping member that receives the helical strand/mandrel assembly.

Abstract: High reliability electrical connections between a helical strand and flat electrodes, such as strip electrodes found in implantable neurostimulator system, are described. The connection consists of a crimp joint in which an inside diameter mandrel is used to provide the coil with sufficient radial rigidity to ensure structural integrity of the crimp. The mandrel is made of a relatively soft biocompatible material that deforms rather than damages the fine wires of the helical strand during crimping. The crimp is accomplished by radial deformation of an annular or semi-annular crimping member that receives the helical strand/mandrel assembly.

Abstract: Implantable medical devices made from a single beta phase Tantalum alloy utilizing Titanium as an alloying agent that are biocompatible, radiopaque and visible under x-ray and fluoroscopy, the alloy having mechanical properties that allow it to be machined by conventional, machining methods for forming the devices, and a method for making the alloy. The alloy is between approximately 10 percent and 25 percent Ti by weight and preferably has a density of 12 g/cm3 or greater.

Abstract: A system and method for synchronizing data between two or more servers including replicating at least a portion of an original data set, associated with a first server, to provide a replicated data set, associated with a second server, the replicated data set based upon, at least in part, the original data set. One or more second-server commands executed on the replicated data set by the second server are stored. One or more first-server commands to be executed on the original data set by the first server, are provided in which the one or more first-server commands are based upon, at least in part, the one or more second-server commands. One or more first-server output objects, returned by the first server in response to the one or more first-server commands, are compared to one or more second-server output objects, returned by the second server in response to the one or more second-server commands.

Abstract: High reliability electrical connections between a helical strand and flat electrodes, such as strip electrodes found in implantable neurostimulator systems, are described. The connection consists of a crimp joint in which an inside diameter mandrel is used to provided the coil with sufficient radial rigidity to ensure structural integrity of the crimp. The mandrel is made of a relatively soft biocompatible material that deforms rather than damages the fine wires of the helical strand during crimping. The crimp is accomplished by radial deformation of an annular or semi-annular crimping member that receives the helical strand/mandrel assembly.