← CAD and mesh conversion guides

OCCT conversion workflows

Parasolid to STEP

Convert Parasolid X_T and X_B to STEP with OCCT3D. Translate BRep geometry, configure healing and retain required names and colors through XDE.

Build this conversion into your application with OCCT readers, writers and the commercial components identified below.

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Input interface
OCCT3D Parasolid reader
Processing route
CAD and mesh exchange
Output interface
OCCT STEP writer

Read Parasolid exports and write STEP

A Parasolid-to-STEP pipeline combines the Parasolid Import SDK with OCCT’s native STEP writer. The reader accepts text X_T and binary X_B files and translates their geometry and topology into OCCT shapes.

This is useful when the sender can export Parasolid from a CAD system and the receiving workflow expects STEP. It is support for the Parasolid export, not a claim of direct support for every source application’s native project format.

Configure geometry and attribute transfer

The geometry conversion layer can work independently. Use the XDE layer when names and colors need to remain associated with imported items. Configure Shape Healing through resource files where the source models require a repeatable repair policy.

After reading, inspect geometry, tolerances and the properties required by the recipient. Write the selected STEP representation and reopen it in the destination application. STEP supports BRep and mesh, but a precise BRep source need not be tessellated when the recipient requires editable CAD geometry.

Define compatibility and output checks

Include the source Parasolid schema, OCCT release, desired STEP configuration and required attributes in an evaluation. Compare the resulting shapes, placements and document data on representative models, including cases that exercise the healing configuration.

The Parasolid component is an importer. The reverse STEP-to-Parasolid direction would require a different writer and is not supplied by this component. If a mesh target is needed after Parasolid import, the same OCCT shapes can instead be tessellated and passed to an available mesh writer.

Conversion integration

Build a Parasolid to STEP workflow

Share the source and receiving applications, representative files, required attributes and throughput. We can scope SDK evaluation or an integrated conversion service.