How to Share SOLIDWORKS Files with Suppliers
What is the safest way to share SOLIDWORKS files with suppliers while maintaining version control?
Managing Multi-CAD Projects: Version Control Across SOLIDWORKS, Creo, and NX
How can engineering teams manage SOLIDWORKS, Creo, NX, and neutral CAD files with one version-control workflow?
TABLE OF CONTENTS
Short answer: Multi-CAD version control works best when every native and neutral CAD file is managed under one consistent process for check-in/check-out, version history, release status, permissions, and browser-based review. The goal is not to convert every design into one format; it is to keep SOLIDWORKS, Creo, NX, Inventor, CATIA, and neutral files traceable in one controlled project.
What is multi-CAD PDM?
Multi-CAD PDM is product data management that applies the same file-control and collaboration rules across CAD data created in different authoring systems. It gives engineering teams a shared source of truth for native CAD files, neutral exchange files, drawings, assemblies, and related documents without requiring every contributor to use one CAD vendor.
A mixed-CAD project environment may exist because of legacy designs, customer requirements, acquisitions, specialist teams, or supplier tool choices. A project might combine a Creo top-level assembly, SOLIDWORKS supplier parts, NX manufacturing data, and STEP files for downstream exchange.
Neutral formats remain important for interoperability. NIST describes STEP (ISO 10303) as a foundational standard for sharing engineering and manufacturing data across organizations and supply chains. However, a neutral file is an exchange representation—not a complete replacement for the editable native model and its full feature history.
Why is version control difficult across SOLIDWORKS, Creo, and NX?
Six recurring problems make multi-CAD projects harder to control:
- Format and translation risk: Moving geometry between proprietary and neutral formats can change or omit metadata, PMI, feature history, or other authoring-system information. A peer-reviewed gaps analysis by NIST researchers found that standards-based CAD-to-CAM and CAD-to-CMM exchange of models with embedded product and manufacturing information is technically feasible, but still exposes measurable gaps in tools, standards, and processes.
- Disconnected version histories: A single assembly may contain files from several tools, while each team tracks versions differently.
- Reference management: Assemblies, drawings, and parts can depend on file names, paths, and referenced versions. A correct part with the wrong reference can still create an incorrect assembly.
- Supplier collaboration: External partners may use different CAD tools or lack the licenses needed to open the native files they receive.
- Fragmented engineering data: Email, file-transfer links, and shared drives create multiple copies with inconsistent permissions and unclear ownership.
- Release ambiguity: A recent working version is not necessarily the approved revision for manufacturing, purchasing, or quality.
The result is not only a conversion problem. It is a configuration and decision-traceability problem: teams need to know which file changed, who changed it, what it belongs to, and which revision is approved for use.
The cost of getting this wrong is measurable. An independent interoperability cost study prepared for NIST estimated that imperfect interoperability imposes at least $1 billion per year on the U.S. automotive supply chain, and that the largest single component of that cost is the effort spent repairing or re-entering design files that downstream applications cannot use. Independent analyst research on CAD data management reports the same operational pattern at team level: the most common difficulties are searching for information, file conflicts, uncontrolled revisions, duplication, and difficulty sharing designs, and smaller companies are affected as well as large ones.
How this guide evaluates multi-CAD data-management approaches
This guide uses an editorial decision framework rather than a controlled benchmark. The approaches are evaluated for typical small and mid-sized engineering teams using four criteria:
- Format coverage: Ability to manage native and neutral CAD files from several ecosystems.
- Version-control consistency: One understandable process for locking, history, restoration, and release status.
- Review accessibility: Whether suppliers and non-CAD stakeholders can inspect supported files without every native CAD application.
- Deployment and governance depth: The balance between fast adoption and advanced enterprise configuration management.
Actual capability can vary by CAD release, file type, assembly structure, connector, and subscription plan. Teams should test representative parts, assemblies, drawings, and supplier handoffs before selecting a system.
Which approach works best for multi-CAD projects?
Approach | Best fit | Main advantage | Main limitation |
Shared drives and naming rules | Very small or temporary projects | Low initial cost and familiar folders | No reliable locking, approval state, dependency visibility, or unified audit trail |
Geometry exchange and downstream communication | Broad interoperability between heterogeneous systems | Does not preserve every native feature, relationship, or authoring workflow | |
Teams deeply standardized on each authoring ecosystem | Strong in-CAD integration and native reference handling | Creates multiple systems of record and cross-platform coordination work | |
CAD-agnostic, file-based cloud PDM | Mixed-CAD teams prioritizing common file control and accessible review | Consistent versioning, permissions, and review across supported formats | May provide less authoring-tool-specific automation than native PDM |
Large or regulated organizations with complex configuration governance | Deep lifecycle, change, BOM, compliance, and enterprise integration | Higher implementation effort, cost, and process complexity |
Decision rule: Choose the lightest approach that can still control versions, approvals, access, and supplier handoffs for your real assembly structures. Broad format claims alone are not enough—pilot the files and workflows that create the most risk.
A practical multi-CAD version-control workflow
A consistent workflow matters more than forcing every file into the same CAD format:
- Keep native files as the editable source. Store SOLIDWORKS, Creo, NX, Inventor, CATIA, and other native files alongside required neutral derivatives and drawings.
- Create a controlled project structure. Use clear product, assembly, and supplier boundaries instead of personal folders or email attachments.
- Check files out before editing. Locking or file ownership reduces simultaneous changes and makes edit responsibility visible.
- Check in related changes together. Record a clear description and include the parts, assemblies, drawings, and supporting documents changed for the same engineering decision.
- Review in an accessible format. Use browser-based review for supported CAD files so project managers, suppliers, customers, and manufacturing teams can inspect the design without installing every native application.
- Separate versions from revisions. Working versions capture iteration; revisions identify formally reviewed or released milestones.
- Validate dependencies before release. Confirm that assemblies and drawings resolve to the intended file versions. Reference parsing varies by format, so test complex datasets rather than assuming universal behavior.
- Release a controlled baseline. Manufacturing and suppliers should receive an approved revision or release package—not simply the newest file in a folder.
Where CAD ROOMS fits for multi-CAD version control
CAD ROOMS is a cloud PDM and collaboration platform designed around broad CAD file-format compatibility and browser-based review for teams that work across multiple CAD ecosystems. According to its Multi-CAD Compatibility documentation, the platform supports more than 35 CAD and engineering file formats, including formats associated with SOLIDWORKS, Creo, Siemens NX, Inventor, CATIA, AutoCAD, and common neutral formats.
For supported files, CAD ROOMS addresses the most common multi-CAD version-control pain points:
Version control problem | Example | CAD ROOMS fit |
Multiple CAD formats in one project | SOLIDWORKS, Creo, NX, and Rhino files in the same assembly | Centralized file management across 35+ supported formats |
File-naming confusion | housing_v3_final_final.step vs. housing_v3_FINAL.step | Version history with check-in/check-out and CAD Diffing for visual comparison |
External feedback scattered across channels | Supplier comments arriving in email and screenshots | Shared workspace with permission-scoped project access for suppliers and reviewers |
Non-CAD stakeholders cannot open native files | Project managers, purchasing, and customers need to inspect designs | Browser-based CAD Viewer — no native CAD install required |
Beyond these specific pain points, whether CAD ROOMS is the right choice also depends on the team's overall situation:
CAD ROOMS is a strong fit when… | A different approach may be better when… |
The project combines files from several CAD vendors | The team needs deep commands embedded inside one specific CAD application |
Suppliers and non-CAD stakeholders need browser review | The organization requires air-gapped or fully on-premise deployment |
The team wants consistent file locking, history, and permissions without a large PLM rollout | The program depends on highly customized enterprise configuration, regulatory, or lifecycle workflows |
Fast adoption and a shared collaboration layer are priorities | An established enterprise PLM already governs all product structures and change processes |
CAD ROOMS does not replace the native CAD applications used to create or edit geometry. It also should not be treated as a universal substitute for every CAD-native PDM or enterprise PLM requirement. The best fit is a mixed-CAD team that values broad file compatibility, common version control, and accessible design review.
Multi-CAD teams often rely on many external reviewers—suppliers, purchasing, quality, and management—so the cost model for guest and viewer access matters. For how CAD ROOMS handles guest sharing vs. paid viewer licenses, see our guide to guest access vs. viewer licenses.
Example: OEM and supplier collaboration
Consider an OEM and supplier collaboration workflow in which the OEM designs the main product in Creo, receives a SOLIDWORKS subassembly from Supplier A, and receives an NX component from Supplier B.
A controlled workflow could be:
- The OEM creates a project with permission boundaries for each supplier.
- Each contributor uploads or synchronizes the native files and required exchange derivatives.
- Changes are checked in with a description and visible version history.
- Reviewers open supported models in the browser and record feedback near the project data.
- The engineering team validates assembly references and approves a release baseline.
- Suppliers and manufacturing receive the approved revision rather than uncontrolled email copies.
This workflow does not eliminate CAD interoperability testing. It does reduce the number of disconnected storage locations and gives the project one traceable process for versions, access, review, and release.
Key takeaways
- Multi-CAD PDM is primarily a data-control strategy, not a promise that every CAD format behaves identically.
- Native files should remain the editable source; neutral formats such as STEP are valuable for exchange and interoperability.
- The minimum viable workflow should include file locking, version history, restoration, permissions, review, and a clear distinction between working versions and released revisions.
- Browser review can reduce dependency on expensive native CAD licenses for suppliers and non-CAD stakeholders.
- CAD ROOMS is best positioned as a file-based cloud PDM and collaboration layer for mixed-CAD teams—not as a replacement for every CAD-native PDM or enterprise PLM deployment.
Frequently asked questions
How do you manage version control across multiple CAD systems?
Use one controlled process for all supported files: check files out before editing, check in related changes together, preserve version history, validate assembly references, and release an approved baseline. The process should apply whether the file comes from SOLIDWORKS, Creo, NX, or a neutral format.
Can CAD ROOMS help with multi-CAD version control?
Yes. CAD ROOMS gives multi-CAD teams one place to keep native and neutral CAD files under version history, enforce check-in/check-out across supported files, and share the current released revision with internal reviewers and suppliers. Because the platform is CAD-agnostic and lists 35+ supported formats, teams do not need a separate PDM for each authoring tool.
Do multi-CAD teams need to convert every file to STEP?
No. Keep native files for editing and use STEP or other neutral formats when exchange, downstream use, or long-term interoperability requires them. Conversion can omit authoring-specific information, so the neutral file should not automatically replace the native source. See the current Multi-CAD Compatibility guide for supported native and neutral formats.
What is the difference between a version and a revision?
A version is an incremental working state created during design iteration. A revision is a formally reviewed or released milestone, such as Rev A or Rev B. A PDM workflow should preserve both without treating the newest working version as automatically approved. Learn more about version control and revision history.
Does CAD ROOMS support SOLIDWORKS, Creo, and NX files?
CAD ROOMS lists formats associated with SOLIDWORKS, Creo/Pro-E, and Siemens NX among its 35+ supported CAD and engineering formats. Support can differ by file type and operation, so teams should confirm browser viewing, CAD Diffing, assembly inspection, and reference behavior using representative project files.
Can different team members use different CAD systems in the same project?
Yes. A file-based multi-CAD PDM can store and control files from different authoring systems in one project. Each engineer still uses the appropriate native CAD software for editing, while the shared PDM layer manages files and project history, access, and review.
Can suppliers review the latest CAD version in a browser without installing every CAD application?
Yes. For supported formats, the browser-based CAD Viewer lets suppliers and other reviewers open the current released revision without installing the original authoring software. Configure roles and permissions so each external collaborator can access only the intended projects and the version you have approved for review.
Does CAD ROOMS automatically preserve every cross-CAD dependency?
No platform capability should be assumed to work identically for every format, release, and assembly structure. CAD ROOMS can manage supported files and provide assembly-oriented review in the CAD Viewer, but teams should test reference resolution and dependency behavior with their own complex datasets before relying on it for release control.
References
- NIST — STEP / ISO 10303 resources
- CIMdata — PLM Glossary
- Trainer et al. (2016) — Gaps Analysis of PMI Data Exchange in the Supply Chain
- RTI International for NIST — Interoperability Cost Analysis of the U.S. Automotive Supply Chain
- Tech-Clarity — CAD Data Management survey
About the author
Christina Rebel is CEO of CAD ROOMS and Co-founder of Wikifactory. She has spent over a decade building cloud-based collaboration tools for engineering teams and has written about engineering workflows for DEVELOP3D and Eureka Magazine. Connect with Christina on LinkedIn or read her article on breaking free from legacy engineering workflows.
Related articles
- What is PDM? Product Data Management Explained
- Multi-CAD File Format Support: SolidWorks, Creo, NX, Rhino, STEP & IGES
- Top 6 Cloud PDM Platforms for Easy CAD Integration (2026 comparison)
- Multi-CAD PDM Requirements Checklist for Enterprise Teams
- Cloud PDM Without CAD Plugins
- Cloud PDM with Unlimited CAD Viewers for Hardware Teams
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