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Based on our record, FreeCAD should be more popular than TetGen. It has been mentiond 2 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
Personally I just tetrahedralize the mesh offline (using tetgen, GPL is meaningless when it's offline) and then use a volume based query similar to that described in Rendering wounds in L4D2 based on the tet centroids. Find a planar projection for the surviving interior tet faces and use that for coordinates. Everything gets partitioned into shared vertex/index buffers for reference and the final buffers are mixed... Source: almost 3 years ago
Important note[0] from author: > With the help of my script, You get a way to install Solidworks on your Linux system. > Certain packages and programs that are required will be set up for You, but it's important to know, that my script only helps You to get the program to run and nothing more! Personally I may recommend try & use SolveSpace[1,2] and FreeCAD[3] — free & open-source 2D/3D... - Source: Hacker News / over 2 years ago
Also FreeCAD has a gcode workbench for full 3D. I've used it a little and would describe it as "usable once you work out the quirks". Https://freecadweb.org/. Source: over 3 years ago
Gmsh - Gmsh is a 3D finite element grid generator with a build-in CAD engine and post-processor.
SketchUp - 3D for Everyone
NETGEN - NETGEN is an automatic 3d tetrahedral mesh generator.
Blender - Blender is the open source, cross platform suite of tools for 3D creation.
Altair - Visually Analyze Any Data at the Speed of Business
LibreCAD - An open source 2D CAD application for Windows, Apple and Linux.