CAD Exchanger
CAD Exchanger

Conversion from Open CASCADE to PRT is not supported yet :(

Upvote for this format by signing up in the form below. We regularly add new formats and will notify you once we have added this one.

Learn more

Take some time to learn more about available products and formats. Perhaps we could still help you.
CAD ExchangerCAD Exchanger Lab

Open CASCADE

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.

PRT

A PRT format is used to store components of 3D CAD models. It may contain lines, surfaces, textures, dimensions, and metadata.

The .prt extension is mostly associated with the Siemens NX Part (PRT) file type as an acronym for "part". PRT files may be exported to various standard CAD and 3D modeling formats (e.g. OBJ and STL) in addition to being utilized natively in Siemens NX.

The PRT file is also a part created by PTC Creo Parametric 3D software. In PTC Creo, project part files can be combined in a single assembly file with an ASM extension.

Despite the same extension name different CAD software produce PRT files differently, i.e. PRT files produced with Creo are not the same as PRT files generated from NX.

The PRT extension is also compatible with Dassault Systèmes SOLIDWORKS.

From Our Blog

Everything you need to know about CAD file formats

Everything you need to know about CAD file formats

A CAD file is an output of a CAD software, containing key information about the designed object: its geometry and topology representation, 3D model hierarchy, metadata, and visual attributes depending on the format of the file.

Read more 
Drawing mode in CAD Exchanger Lab

Drawing mode in CAD Exchanger Lab

In this article, we are going to dive into the features that the Drawing mode offers and discover how it elevates the experience of working with DWG files.

Read more 
Docker images, support of Autodesk Inventor 2022, and import of properties from CATIA in CAD Exchanger 3.22.0

Docker images, support of Autodesk Inventor 2022, and import of properties from CATIA in CAD Exchanger 3.22.0

Ship your software anywhere with Docker images, read .ipt, .iam files independently from Autodesk software, explore mechanical, product, and custom properties from CATIA.

Read more