Auto-SolidWorks
Local SolidWorks parametric modeling plugin for Codex and MCP workflows, with native part, assembly, surfacing and drawing output.
What it does and how it connects
Auto-SolidWorks is a local SolidWorks parametric modeling plugin for Codex and MCP workflows on Windows x64. It takes engineering drawings, PDFs, or explicit dimensions, organizes the input into a checkable modeling plan through a four-step flow (read the drawing, bind dimensions, compile, model), and executes it in the user's own locally installed and licensed SolidWorks, saving native SLDPRT, SLDASM, and SLDDRW files.
Its stated coverage is parametric parts (sketches, extrusions, holes, fillets, sheet metal, weldments), surfacing with Boundary, Fill, and Sweep controls, assemblies with mates and interference checks, and drawings with first-angle views and native dimension import. Design parameters use global variables, dimension equations, and configuration expressions, and execution supports status queries, pauses, deadlines, checkpoints, and recovery.
Requirements stated in the README are Windows x64, an activated local SolidWorks, the .NET 9 Windows Desktop Runtime, and a Codex client that supports plugins. The release notes for version 1025 state that source-image geometry candidates, batch dimension binding, and angle expressions were added. The README's hollow-shaft section notes that a curved M20 thread case from earlier examples was not completed, so historical screenshots are not full acceptance evidence for this version.
What engineers report
First native health check timed out with EXECUTOR_DEADLINE, the lease file stayed marked active, and later health checks were blocked by the unfinished lease, with no model created yet.
2026-10-28Read the original
Alternatives
Compare side by side- illusion-forge
A full agent workbench with a shared CAD canvas, headless 3D preview, and SolidWorks COM modeling, rather than a local plugin that runs a four-step read, bind, compile, and model flow.
- claude-solidworks-review
Reviews SOLIDWORKS drawings through a VBA export macro and Claude, rather than modeling parts, assemblies, and drawings from drawings and dimensions.
- MecAgent
A commercial desktop copilot that acts inside an open SolidWorks session, rather than a local open-source plugin for Codex and MCP.
- siemens-nx-mcp
An MCP server for Siemens NX with 269 tools, rather than a SolidWorks plugin.
- Ark
An open-source parametric CAD kernel and Studio app of its own, rather than a plugin that drives the user's installed SolidWorks.
Recurring errors it addresses
Error Index entries this tool is built to reduce or work around.
- Saving an assembly can trigger rebuilds that break mates and randomly alter mate dimensions.Error Index
- Large assemblies can lock up on open with the feature tree failing to populate.Error Index
- Even simple save/check-in operations can take minutes on capable hardware.Error Index
- A SolidWorks MCP bridge returned success JSON and even a normal-looking PDF export while the live document was wrong: a sketch asked for the Right plane silently landed on Front, and a macro call reported success=False with zero errors while never running. Only visual inspection inside SolidWorks itself revealed it.Error Index
Sources
Not verified
- Pricing: none stated on the repo.
- A named individual builder beyond the repository owner handle qdaia
- A standalone website: the repo homepage points to its own releases page.
Last verified November 6, 2026. Listings are informational. The evidence score measures public, verifiable evidence and is not an endorsement or a compatibility claim.