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Someone who has worked with paid CAD software in a professional setting and wants to use a CAD software at home.That’s not to say the UI will be the same, but the general principles of the design process and how you interact with your workpiece will be familiar. Familiar ExperienceįreeCAD offers a very familiar experience for anyone who has worked with almost any other CAD software before. Here’s a few major points where FreeCAD really shines. For the most part, it accomplishes this in spades.

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Pros of Using FreeCADįreeCAD is a software with a lofty goal: provide all the functionality of traditional, professional CAD software in a free and open source package. You’ll be working directly with the object in 3D space. Extrusion: extending a surface of your object outward.You’ll have access to powerful operations, such as: However, FreeCAD also allows you to use constructive geometry methods, if you prefer that. When you’re working with FreeCAD, you’ll primarily be working directly with your object’s faces, edges, and vertices (overall, its topology). FreeCAD certainly has a wide array of functionality and many positives, the BREP path is not without its downsides and the program itself has other issues which we’ll address. As we mentioned above, FreeCAD uses BREP, which allows it to do more flexible and complicated operations than a standard CSG method.Īt first glance, that would make it seem like FreeCAD is the obvious winner, since it has more features and flexibility. We’ll start first by talking about FreeCAD because it is a good launching pad for those already familiar with most mainstream modeling software, AutoCAD included.

FreeCAD: Traditional Modeling Alternative For those who already have experience with another CAD software or a 3D modeling software like Blender, then this will be familiar territory. Practically speaking, this means that when working with FreeCAD you will be modifying things like faces, edges, and vertices and be using more complicated modeling operations, like extruding a surface outward. BREP technically has more complex and flexible operations available, such as: Instead of only combining primitive shapes using operations, BREP allows the editing of topology in addition to geometry. This is the same or very similar to methods used by most other CAD software and other 3D modeling software in general. In practical terms, this means that during modeling, you’ll be building complex shapes by combining a tree of other shapes using operations like intersections and differences.įreeCAD on the other hand primarily uses a method called Boundary Representation, or BREP for short. It builds complex shapes by using a combination of different operations, which we’ll talk more about in its section.

Essentially, it works by building complex geometry using “primitive” shapes, like: OpenSCAD uses a technique called constructive solid geometry, or CSG for short. Their design philosophies differ and that affects their goals and development choices. Different Design Philosophiesīefore we even begin talking about their exact features and shortcomings, you should know that they have many differences just at a core level. While they accomplish the same goal in principle, they actually have many differences and it’s not as easy as just saying one is better than the other. Two of the most prominent are FreeCAD and OpenSCAD.

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The landscape has changed in modern times, and while AutoCAD still costs nearly $1,500 a year for a professional license there are a plethora of other free, open source CAD software. For a long time, if you wanted to make use of CAD programs you had to buy into licensing fees that could easily get into the thousands of dollars. CAD or Computer Aided Design programs have been around for a while, with famous programs like AutoCAD being as old as the early 80’s.

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