How to convert files from Fusion 360
to Open CASCADE?

Fusion 360 is a 3D CAD, CAM, CAE cloud-based platform by Autodesk, which connects the development processes of a product. Solid, Surface, T-Spline and Mesh geometry are supported as well as drawing, rendering and 3D-printed output for design validation and documentation. Fusion 360 runs on Windows, Mac OS and in browsers. It is mostly used by students of manufacturing and design spheres.

It is a collaborative platform where users can access each other’s files which shortens design lifecycle. As the app can run either on PC or on the cloud, it can work both with and without internet connection. Data management is built into Fusion.

Autodesk Fusion has a single model environment in which all unique parts and assemblies can be created. It incorporates both direct and parametric control. In Fusion users can make drafts, prepare designs for 3D printing as prototypes or as final parts. Fusion 360 includes integrated Assembly modelling, Motion studies, Rendering and FEA tools to help users analyse design before making it. As document management is built into the platform, files are automatically backed up to the cloud.

In solid modeling and computer-aided design, boundary representation—often abbreviated as B-rep or BREP—is a method for representing shapes using the limits. A solid is represented as a collection of connected surface elements, the boundary between solid and non-solid.

Boundary representation of models are composed of two parts: topology and geometry (surfaces, curves and points). The main topological items are: faces, edges and vertices. A face is a bounded portion of a surface; an edge is a bounded piece of a curve and a vertex lies at a point. Other elements are the shell (a set of connected faces), the loop (a circuit of edges bounding a face) and loop-edge links (also known as winged edge links or half-edges) which are used to create the edge circuits. The edges are like the edges of a table, bounding a surface portion.

Compared to the constructive solid geometry (CSG) representation, which uses only primitive objects and Boolean operations to combine them, boundary representation is more flexible and has a much richer operation set. In addition to the Boolean operations, B-rep has extrusion (or sweeping), chamfer, blending, drafting, shelling, tweaking and other operations which make use of these.