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Design for print, one concept at a time. Start with the fundamentals — what a printer actually needs from your model.
Watertight & Manifold
A 3D model is just a surface. For a printer to turn it into a solid object, that surface has to seal a volume completely — with no holes, no gaps, no impossible edges.
Mesh Basics
Before a printer can build your model, it has to understand it. And what it understands is surprisingly simple: points, lines, and triangles.
Wall Thickness
A printed object is mostly shell. Make that shell too thin and it fails or breaks; too thick and you waste time and material. Knowing the floor — the thinnest a wall can safely be — is one of the most practical design skills there is.