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MDsolids.com: Program for strength calculations
This is an American website where a program can be downloaded due to strength calculations.
Especially interesting is the module that automatically determinate beams shear and moment diagram can be drawn.
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BRL-CAD: CAD package for designing 3D shapes
BRL-CAD is a solid modeling Computer Aided Design package for designing 3D shapes. A professional CAD package for those with some experience. It includes an interactive geometry editor and rendering functions (for making pretty pictures). BRL-CAD …
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Dia: Based Vector drawing program
Dia is a vector based drawing program, with strong support for making diagrams (graphs). Graphs are a series of "objects" connected to "arrows".
Dia has a library of ready-made object shapes in many different fields: flow …
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ArchiCAD: 3D CAD Drawing
ArchiCAD 11 is a 3D drawing program, similar to the known Inventor. There is a big difference: as a student or teacher will get the license for free.Translated by
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