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3D Modeling
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Free CAD Software Worth Trying
Three free CAD software options for hobby and learning work, FreeCAD, OpenSCAD and Onshape, and how to choose between them.
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CAD Software for Makers and Designers
What CAD software does, how parametric and direct modeling differ, and how makers can choose between commercial and open-source tools.
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Blender: A Starting Point for 3D Modeling
Blender is a free, open-source 3D suite that covers modeling, animation and rendering. Here is its history, licence, scope and…
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3D Scanner Types and How They Differ
A plain comparison of the main 3d scanner technologies, from touch probes to lidar, and how to match one to…
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Designing Models That Print Well
How to design models that print well: nozzle-based wall limits, overhang angles, bridges, orientation, hole tolerances and manifold meshes.
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3D Modeling: Software, Techniques and File Basics
A sourced guide to 3D modeling: how models are represented, which software families exist, core techniques, and how file formats…
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3D File Formats Compared: STL, OBJ, 3MF and More
STL, OBJ and 3MF store different things. Here is what each keeps, what it drops, and which to export.
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What a 3D Model Is and How It Is Built
What a 3D model is made of, the four main ways to represent one, and the steps used to build…