CAD SYSTEM EXPERTISE

Our talented engineer team has the following expertise in API based CAD development: AutoCAD, SolidWorks, CATIA, Pro/E, UG, Inventor, Rhino, SolidEdge, SpaceClaim, Geomagic, Maya

We are experienced in the following CAD data formats and software tools: IGES, STEP, DWG/DXF, X_B, SAT, PDF 3D, STL, VRML, 3DS, IBL, e-Drawings, Hoops, 3DVIA

We are professional in building CAD models using the following CAD systems:
AutoCAD, SolidWorks, CATIA, UG, Pro/E, Inventor, Solid Edge, Geomagic, Maya, 3D Studio Max

CURVE CREATION

B-spline curves

interpolation, fitting; energy minimization curve fairing; fair curve on surface; curve with fixed length; parser and convert equations into NURBS curve; curve extracted from mesh boundary, image silhouettes, and free-hand sketching.

Curve faring by energy minimization. When interpolating the six blue sample points, using our curve fairing technique, the new gray curve is better than the original red curve with much more smooth curvature combs of new curve (yellow) than the original one (red).

SURFACE MODELING

B-spline surfaces

interpolation, fitting & energy minimization fairing; fair surface extension; trim surfaces; surface deformations; modeling; repair ripple/bumpy surfaces; making surfaces normal and curvature continuity.

Free-style subdivision surface modeling

our FreeShape technology enables modeling with 4-sided full patches for arbitrary topolog from elementary solids.

SOLID MODELING

CAD solid creation & repair

knitting surfaces together to form a solid; repair faulty solid caused by Boolean operations; replace unwanted bad surface geometries;fix edge gaps.

Solid modeling by body sweep

unique technology to create a CAD solid by sweeping a 3D body, to differentiate from pure graphical NC simulation.

REVERSE ENGINEERING

Point cloud processing

noise removal, simplify, smooth, meshing

Mesh processing

meshing from point cloud; simplification, smoothing, segmentation; feature line generation; mesh quad-rization.

Surfaces & solids recognition

recognition of plane, sphere, cylinder, cone, extrusion, and revolved surfaces/solids.

Curves on mesh

mesh contour curves; mesh section curves; mesh feature lines; sketching on mesh; patch boundary curves.

Automatic surfacing

Automatic patching the mesh based on mesh quad-rization, feature lines, and other mesh curves.

Manual surfacing

surface lofting from section and boundary curves.

CAE & CFD GEOMETRY

CAE geometry modeling

turning a CAE deformed mesh back to a CAD model; body repair for valid meshing; CAE mesh repair.

CFD geometry pre-processing

CFD sketch and solid modeling; CFD meshing; user interfaces; and CFD parameter setting; interactions with CFD computation programs; visualization of CFD results.

GPU & MULTI-CORES