Parametric 3D modelling driven entirely by code rather than direct manipulation.
Why we recommend it
You describe geometry in a scripting language instead of drawing it, which makes designs genuinely version-controllable and trivially parameterised — powerful for functional parts.
Strengths
- Fully parametric — change a variable, regenerate the model
- Plain-text files work properly with Git
- Excellent for functional and mechanical parts
Drawbacks
- No direct manipulation at all — everything is code
- Organic or sculpted shapes are impractical
- Preview rendering slows badly on complex models
OpenSCAD alternatives and related tools
MeshLab
Open-source tool for processing, cleaning and repairing 3D scan meshes.
FreeStratasys 3D Printers
Industrial additive manufacturing (FDM, PolyJet) for product prototyping.
QuotePTC Creo
Parametric CAD with strong generative design and simulation modules.
QuoteWomp
Browser-based 3D modelling aimed at beginners, with a playful, approachable interface.
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