solidworks-mcp

Using the SolidWorks MCP server

These tools drive a real SolidWorks session through its API. Each tool's own description says what it does and what it needs; this skill covers what spans tools: the order to call them in, units, choosing faces and edges, checking the result, and what doesn't work yet.

Before anything

• Call get_model_info first. It says which document is active (it follows a switch the user made in the SolidWorks window). list_open_documents lists every open document; activate_document switches.
• Call tools one at a time and wait for each result. The server pauses after every SolidWorks call on purpose: driving SolidWorks back-to-back crashes it.

The build order

A solid feature always comes from a closed sketch:

1. create_part (or open_model for an existing file).
2. create_sketch on a plane: "Front", "Top", "Right", or a plane from create_reference_plane. Don't pass sketch_name; the reply gives SolidWorks' own name for the sketch.
3. Draw: add_rectangle, add_circle, add_line, add_arc, add_polygon, and so on. For a revolve, add the axis with add_centerline in this sketch.
4. exit_sketch.
5. The feature: create_extrusion (add material), create_cut_extrude (remove it), create_revolve, create_sweep, create_loft. create_extrusion and create_revolve use the sketch you just closed, whatever name you pass, so call them straight after exit_sketch. create_cut_extrude takes sketch_name; pass it.
6. Then edge treatments: select_face_edges, then add_fillet or add_chamfer with empty edge_names.
7. Finish with verify_model (see "Check the result").
8. set_material, then save_part with a file_path.

Repeat 2-5 for each feature. For holes in a ring or a row, draw every circle in one sketch (sketch_circular_pattern, sketch_linear_pattern) and cut once: pattern_circular and mirror_feature can't repeat a cut yet.

Worked sequences for parts, assemblies and drawings: references/workflows.md.