Automate parametric CAD part and assembly creation with build123d in Python.
npx skills add https://github.com/helmecke/dotfiles --skill build123d
Please help me install this Agent Skill. Skill: build123d Source: https://github.com/helmecke/dotfiles/tree/main/dot_config/opencode/skill/build123d Command: npx skills add https://github.com/helmecke/dotfiles --skill build123d
build123d enables Python-driven parametric CAD workflows by providing Algebra and Builder modes, selectors, and patterning to create and modify 3D parts programmatically.
Install build123d, then start with a simple Box example in Algebra mode to observe the workflow.
High-intent search queries and answers about installing and using this skill.
Parametric CAD parts in Python are created using build123d, which offers Algebra and Builder modes to programmatically design and modify 3D geometry. It enables engineers to build parametrically driven parts, assemblies, and patterns within automated Python workflows.
Algebra mode handles explicit object manipulation for simple models, while Builder mode manages complex assemblies, hierarchical patterns, and location contexts like GridLocations and PolarLocations. Both approaches are supported to build parametric CAD parts in Python.
Selectors in build123d filter and group geometry to query and refine 3D parts during parametric CAD creation. They enable precise geometry operations by targeting specific faces, edges, or vertices within your Python model.
Yes, parametric 3D models created with build123d can be exported to STEP and STL formats. The build123d ecosystem includes import and export utilities to integrate your Python-driven CAD models with standard CAD pipelines.
The best way to automate parametric assemblies in Python is using build123d Builder mode with GridLocations or PolarLocations. This approach handles hierarchical patterns and location contexts to generate complex, reusable parametric components programmatically.
MRiabovAutomate CAD drafting workflows with build123d builder modes and semantic selectors.
shdaifatExport CadQuery models to STEP, STL, GLTF, DXF, SVG, BREP, and AMF formats.
kandengGenerate parametric 3D CAD models and export STEP files using Build123d Python scripts.
shdaifatGenerate parametric 3D CAD models as CadQuery Python code from natural language prompts.
