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Kai-Jungsthoefel

Kai-Jungsthoefel/SOMA

Desktop app for designing parametric 3D models in CadQuery with a CLI coding agent of your choice writing the code.

Open-source alternative to:Fusion 360Onshape

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3 days ago

What is it?

SOMA is a desktop CAD program where a coding agent writes the model as Python code using CadQuery, and the app rebuilds and displays the result on every change. You describe the part, check it in a 3D viewer, measure or mark what needs fixing, and the agent updates the code. It is aimed at makers who need a case, bracket or mount without learning a traditional CAD tool.

SOMA is not an agent itself. It runs any CLI agent that can read files and run commands, such as Claude Code, OpenCode, Codex CLI or Gemini CLI, inside a terminal in the model folder. You install and log in to the agent yourself. SOMA provides a command line tool (soma build, soma analyze, soma render) and an AGENTS.md with project rules.

The app includes a code editor with Git, a model history with restore, adjustable parameters, standard screws and nuts, STEP import, FEM strength analysis via CalculiX, and exports to STEP, STL, 3MF, DXF and PDF drawings. Packages are available for Windows, Linux and macOS (Apple Silicon); the project is an early 0.x prototype.

Key features

  • 01Models written as CadQuery Python code and rebuilt on every change
  • 02Works with any CLI coding agent that can read files and run commands
  • 03Click, measure and sketch on the 3D view to send feedback to the agent
  • 04Model history with timeline preview and restore
  • 05Analysis for overhangs, wall thickness and FEM strength via CalculiX
  • 06Export to STEP, STL, 3MF, DXF, and PDF technical drawings

Use cases

  • Designing a 3D-printable case or enclosure for an electronics project
  • Making a bracket or mount for a home or workshop setup
  • Creating a parametric part whose dimensions you adjust later
  • Producing STEP or STL files for printing or CNC from a text description

In collections

Open-source AI agent frameworks & appsAI coding assistants & agents

Topics

#cad#cadquery#parametric-design#3d-printing#ai-agent#coding-agent#python#fem#agent#agentic-ai

FAQ

What is SOMA?
Desktop app for designing parametric 3D models in CadQuery with a CLI coding agent of your choice writing the code. SOMA is a desktop CAD program where a coding agent writes the model as Python code using CadQuery, and the app rebuilds and displays the result on every change. You describe the part, check it in a 3D viewer, measure or mark what needs fixing, and the agent updates the code. It is aimed at makers who need a case, bracket or mount without learning a traditional CAD tool.
Is SOMA free to use? What license does it have?
SOMA is open source under the GPL-3.0 license. Check the license terms before using it in commercial products.
Is SOMA still maintained?
Actively maintained. The last commit to SOMA was on Nov 4, 2026.
What can I use SOMA for?
Designing a 3D-printable case or enclosure for an electronics project Making a bracket or mount for a home or workshop setup Creating a parametric part whose dimensions you adjust later Producing STEP or STL files for printing or CNC from a text description
Where can I get SOMA?
The source code and installation instructions are on GitHub: https://github.com/Kai-Jungsthoefel/SOMA

Summary generated by AI from the project's README. GitHub stats refresh daily.

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