blender-cad

name	blender-cad
description	Blender CAD modeling automation skill with STEP/IGES import, Geometry Nodes, and USD export support.
short_description	Blender CAD modeling automation skill with STEP/IGES import, Geometry Nodes, and USD export support.

Blender CAD Agent Skill

Cursor Integration: This skill is auto-discovered by Cursor. It activates based on the task description matching the skill's capabilities.

Overview

Blender CAD modeling automation skill with STEP/IGES import, Geometry Nodes, and USD export support. Automates Blender Python scripting workflows for CAD modeling, rendering, and export automation.

Capabilities

• CAD Import: Import STEP, IGES, and other CAD formats
• Geometry Nodes: Create parametric designs with Geometry Nodes
• Python Scripting: Write bpy scripts for automation
• Material Management: Create and manage materials
• Render Automation: Configure and trigger renders
• Export Workflows: Export to various formats (FBX, OBJ, USD, glTF)
• Procedural Modeling: Generate complex geometries procedurally

Cursor Tools

This skill uses the following Cursor-native tools:

Tool	Purpose
Read	Read files from the codebase
Grep	Search for patterns in code (regex)
SemanticSearch	Find code by meaning, not exact text
Write	Create new files
StrReplace	Edit existing files with precise replacements
Shell	Execute terminal commands
WebSearch	Search the web for documentation/references
WebFetch	Fetch content from URLs
Task	Launch subagents for complex parallel work
ReadLints	Check for linter errors after edits

Usage Examples

Basic CAD Import

Geometry Nodes Design

Render Setup

Blender Project Structure

blender-project/
├── source/
│   ├── step_files/
│   ├── iges_files/
│   └── import/
├── scripts/
│   ├── run_automation.py
│   ├── geometry_nodes.py
│   └── materials.py
├── materials/
│   ├── metal.matl
│   ├── plastic.matl
│   └── wood.matl
├── renders/
│   ├── viewport/
│   └── final/
└── exports/
    ├── fbx/
    ├── obj/
    └── usd/

Blender Python API

Blender 4.0+ uses bpy (Blender Python) API:

import bpy

# Create mesh
mesh = bpy.data.meshes.new("Cube")
obj = bpy.data.objects.new("Cube", mesh)
bpy.context.collection.objects.link(obj)

# Geometry Nodes
modifier = obj.modifiers.new("GeometryNodes", 'NODES')
modifier.node_group = bpy.data.node_groups["MyNodeGroup"]

Export Formats

Format	Use Case	Notes
FBX	Game engines, VRChat	Supports materials
OBJ	General purpose	Simple geometry
USD	VFX pipelines	Rich metadata
glTF	Web, AR/VR	Compact, efficient

Output Format

The blender-cad agent provides:

• Python scripts for automation

• Geometry Nodes setups

• Material configurations

• Render outputs

• Export packages

• Blender Python API

• Geometry Nodes Manual

• STEP/IGES Import

• CAD Blender Addon

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$ the skill-install skill https://github.com/zapabob/codex-blender-cad-skill` Version: 1.0.0