tusosos/3d-print-model-generator
skills/3d-print-model-generator/SKILL.md
Generate 3D printable STL models from parametric descriptions. Use for creating 3D models, STL files, mechanical parts, gears, brackets, enclosures, or any geometry for 3D printing. Supports primitives, functional objects, custom scripts, and PNG previews.
data-ai
Updated Apr 21, 2026
$ install --global
skillsauthnpx skillsauth add tusosos/manus-knowledge-base 3d-print-model-generatorInstall this skill globally with one command. Works with Claude Code, Cursor, and Windsurf.
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SKILL.md
- name:
- 3d-print-model-generator
- description:
- Generate 3D printable STL models from parametric descriptions. Use for creating 3D models, STL files, mechanical parts, gears, brackets, enclosures, or any geometry for 3D printing. Supports primitives, functional objects, custom scripts, and PNG previews.
3D Print Model Generator
Generate STL files for 3D printing using parametric Python scripts. No CAD software required.
Dependencies
sudo pip3 install numpy-stl trimesh
Quick Start
Generate a shape
python3 /home/ubuntu/skills/3d-print-model-generator/scripts/generate_model.py \
--shape box --params '{"x":50,"y":30,"z":10}' --output model.stl
Preview as PNG
python3 /home/ubuntu/skills/3d-print-model-generator/scripts/preview_model.py model.stl preview.png
List all shapes
python3 /home/ubuntu/skills/3d-print-model-generator/scripts/generate_model.py --list
Workflow
- Clarify the user's model requirements (dimensions, shape, purpose)
- Install dependencies if needed:
sudo pip3 install numpy-stl trimesh - For simple shapes: use
--shapewith--paramsJSON - For complex models: write a custom script using the template, then run with
--script - Generate PNG preview with
preview_model.py - Deliver STL file and preview image to user
Available Shapes
Primitives: box, cube, cylinder, sphere, cone, torus
Functional: gear, pipe/tube, hex_nut/nut, thread/screw, bracket, washer, grid
For full parameter details: read references/shapes_reference.md
Custom Scripts
For complex multi-part models, copy and edit the template:
cp /home/ubuntu/skills/3d-print-model-generator/templates/custom_model_template.py model_script.py
Custom scripts must define generate() returning a numpy-stl Mesh. All shape functions and utilities (_combine_meshes, _translate_mesh, _scale_mesh, _rotate_mesh_z) are pre-injected.
Run with:
python3 /home/ubuntu/skills/3d-print-model-generator/scripts/generate_model.py \
--script model_script.py --output model.stl
Transforms (CLI)
Apply after generation: --translate x,y,z, --scale factor, --rotate-z degrees
3D Printing Guidelines
- All dimensions in millimeters (mm)
- Min wall thickness: 1.2mm (FDM), 0.8mm (SLA)
- Overhangs: keep below 45° or add supports
- Tolerances: 0.2mm FDM press-fit, 0.1mm SLA
- Orient strongest axis along Z (layer lines)
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