What is Solidgen Py

solidgen-py is an MCP server that generates SolidWorks automation Python scripts using the pywin32 library. It utilizes a Large Language Model (LLM) to interpret user requests and produce runnable Python code for creating parts and drawings in SolidWorks.

Use cases

Use cases for solidgen-py include automating the creation of complex parts, generating drawings based on user specifications, and streamlining workflows in SolidWorks to enhance productivity.

How to use

To use solidgen-py, clone the repository, install dependencies with ‘uv sync’, and run the FastMCP server using ‘fastmcp run src/server.py’. An MCP client can then call the ‘solidgen’ tool with a user request string to generate the desired Python script.

Key features

Key features of solidgen-py include SolidWorks automation for generating Python scripts, LLM-powered code generation that translates natural language into pywin32 code, easy integration with MCP-compatible clients, and timestamped saving of generated scripts.

Where to use

solidgen-py can be used in engineering and design fields where SolidWorks is utilized for creating parts and drawings. It is particularly beneficial for automating repetitive tasks in SolidWorks.

SolidWorks MCP (Python)

This project implements an MCP server that provides a powerful tool for generating SolidWorks automation scripts using Python and the pywin32 library. It leverages a Large Language Model (LLM) to interpret user requests and produce runnable Python code for creating parts and drawings in SolidWorks.

Features

• SolidWorks Automation: Generate Python scripts to automate tasks within SolidWorks.
• LLM-Powered Code Generation: Utilizes an LLM to translate natural language requests into pywin32 code.
• Easy Integration: Designed as a FastMCP server, allowing seamless integration with MCP-compatible clients and assistants.
• Timestamped Saving: Generated scripts include logic to save SolidWorks parts with unique, timestamped filenames.

How it Works

The solidgen tool exposed by this server takes a user request as input. It then constructs a detailed prompt for an LLM, instructing it to generate a Python script that uses pywin32 to perform the requested SolidWorks operation. The generated script includes boilerplate for initializing SolidWorks and saving the created part.

Getting Started

Installation

1. Clone this repository:

   git clone https://github.com/arhamgarg/solidgen-py.git
   cd solidgen-py
   

2. Install dependencies using uv:

   uv sync
   

Running the Server

To run the FastMCP server:

fastmcp run src/server.py

Once running, the server will expose the solidgen tool, which can be called by an MCP client.

Usage (via an MCP Client)

An MCP client can call the solidgen tool with a user_request string.

Example of how an MCP client might call the tool:

{
  "mcpServers": {
    "solidgen-py": {
      "command": "uv",
      "args": [
        "--directory",
        "/ABSOLUTE/PATH/TO/PARENT/FOLDER/solidgen-py/src",
        "run",
        "server.py"
      ]
    }
  }
}

The tool will return a Markdown-formatted Python code block containing the generated SolidWorks automation script.