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SolveSpace is a free and open-source 2D/3D constraint-based parametric computer-aided design (CAD) software that supports basic 2D and 3D constructive solid geometry modeling. It is a constraint-based parametric modeler with simple mechanical simulation capabilities. Version 2.1 and onward runs on Windows, Linux and macOS.
The shaft and pulleys share a common centerline. The constraints of the key are set in relation to the keyseat. A constraint in computer-aided design (CAD) software is a limitation or restriction imposed by a designer or an engineer upon geometric properties [1]: 203 of an entity of a design model (i.e. sketch) that maintains its structure as the model is manipulated.
FreeCAD – Parametric 3D CAD modeler with a focus on mechanical engineering, BIM, and product design. LibreCAD – 2D CAD software using AutoCAD-like interface and file format. SolveSpace – 2D and 3D CAD, constraint-based parametric modeler with simple mechanical simulation abilities.
Geometric constraint solving is constraint satisfaction in a computational geometry setting, which has primary applications in computer aided design. [1] A problem to be solved consists of a given set of geometric elements and a description of geometric constraints between the elements, which could be non-parametric (tangency, horizontality, coaxiality, etc) or parametric (like distance, angle ...
Parametric CAD, solid modeling, dimensional constraints and photo-realistic rendering CADdy++ basic CAD: Entry-level 2D and 3D CAD, solid modeling and rendering CADdy classic CAD: Entry-level 2D CAD, originally of ZIEGLER-Informatics CADdy++ Eventmanagement CAD: 2D and 3D Event Management System: Delft Spline Systems DeskProto CAM
In parametric design software, designers and engineers are free to add and adjust the parameters that affect the design results. For example, materials, dimensions, user requirements, and user body data.
With direct modeling, once a sketch is used to create geometry it is incorporated into the new geometry, and the designer only has to modify the geometry afterward without needing the original sketch. As with parametric modeling, direct modeling has the ability to include the relationships between selected geometry (e.g., tangency, concentricity).
FreeCAD is a general-purpose parametric 3D computer-aided design (CAD) modeler and a building information modeling (BIM) software application with finite element method (FEM) support. [4] It is intended for mechanical engineering product design but also expands to a wider range of uses around engineering, such as architecture or electrical ...
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