Convert IPT to SLDPRT

A recipient may need an .sldprt file to edit an Inventor part in SOLIDWORKS, insert it into a SOLIDWORKS assembly, or create native drawings and manufacturing data. The conversion transfers the model between different proprietary CAD formats and may not preserve the original feature history.

What the IPT format is

.ipt is Autodesk Inventor’s native part format. It can contain parametric features, sketches, constraints, dimensions, materials, bodies, model states, appearances, and design-history data. Inventor uses .iam for assemblies; an IPT file normally represents one part.

IPT files are common in Inventor-based engineering projects, supplier exchanges, Autodesk Vault repositories, and assemblies designed with Autodesk products.

What the SLDPRT format is

.sldprt is the native SOLIDWORKS part format. It supports SOLIDWORKS features, sketches, configurations, bodies, appearances, drawings, assemblies, and downstream manufacturing workflows.

Saving an imported Inventor model as SLDPRT makes it available to SOLIDWORKS users without Inventor. The result may be an imported solid or surface body rather than a native SOLIDWORKS feature tree, so its extrudes, cuts, fillets, constraints, and sketches may not be directly editable as equivalent SOLIDWORKS features.

Convert with Inventor and SOLIDWORKS

1. Open the IPT file in Autodesk Inventor and resolve missing references, suppressed features, invalid bodies, and unit discrepancies.
2. Export a neutral CAD file through File → Export → CAD Format or the equivalent Inventor export command. Use STEP, preferably AP242 when supported; AP214 is also widely compatible. Inventor versions and licenses expose different translators, so use the formats actually available in the installation.
3. In SOLIDWORKS, select File → Open, choose the exported .step, .stp, or other supported neutral file, and allow Import Diagnostics to repair faulty faces if prompted.
4. Check the imported model’s units, body count, dimensions, holes, threads, fillets, colors, and surface gaps. Use Evaluate → Check for geometry validation.
5. Select File → Save As, choose Part (*.sldprt), and save the result. Rename the extension only after conversion; changing .ipt to .sldprt does not change the internal file format.

Parasolid can also transfer accurate solid geometry when a compatible Inventor translator is installed and the SOLIDWORKS version accepts the resulting .x_t or .x_b file. Use it only when the export option is available; STEP is the more consistently available exchange route.

Try direct opening in SOLIDWORKS

Some SOLIDWORKS releases and licenses support Autodesk Inventor files through an Inventor translator or 3D Interconnect. Try File → Open and select the IPT file. Compatibility can depend on the SOLIDWORKS release, Inventor version, installed translators, and whether Inventor is installed.

A successful direct import may produce a linked 3D Interconnect feature instead of an independent native model. Break the 3D Interconnect link only when the part must no longer update from the IPT source, then save it as .sldprt. If direct opening fails, export STEP from Inventor rather than repeatedly changing import settings or renaming the file.

Use a dedicated converter

CrossManager by Datakit is a desktop option for batch and direct CAD translation, including some Inventor-to-SOLIDWORKS workflows. Confirm support for the specific Inventor and SOLIDWORKS versions before purchasing or processing a production file; licensing and feature-preservation capabilities vary.

Online CAD services such as CAD Exchanger Cloud may support some IPT input and SLDPRT output combinations. Format support, file-size limits, and native SLDPRT export can change by plan, so verify that the service explicitly lists both extensions before uploading. Do not send proprietary designs to a cloud converter unless the organization’s data policy permits external processing. A desktop Inventor-to-STEP-to-SOLIDWORKS workflow provides more control over data and validation.

Quality and compatibility limits

STEP and Parasolid primarily transfer B-rep geometry. They normally discard Inventor feature history, sketch constraints, iLogic rules, drawing files, Vault relationships, assembly mates, and some model-state or configuration behavior. Threads may arrive as simple cylindrical geometry, and appearances, materials, named views, and colors may require manual correction.

For an assembly, convert each required IPT component and rebuild or preserve the assembly separately; converting one IPT cannot reproduce an Inventor IAM structure. Compare critical measurements with the source, inspect thin walls and small holes, and verify units and tolerances before manufacturing. Recreate sketches, dimensions, configurations, threads, and other native features in SOLIDWORKS when later parametric editing is required.