Here is a shot list of common design constraints: For instance, overhangs greater than 45° are difficult/impossible to print without support material (an advanced operation). One important aspect of 3D modeling for 3D printing is being aware of model design constraints. Blender is also a very popular Open Source option. These scripts can be parameterized to make it easy to scale and modify models. Rather than draw your model with graphics tools, you define the model in a scripting language and then compile the script into the 3D model. OpenSCAD takes a very interesting approach and has become quite popular. Some common Open Source cross-platform products used by the RepRap 3D printing community include: Most of the commercial and Open Source CAD software packages are used to create 3D models for CNC milling can be used to create 3D models for printing. The only significant requirement is that the CAD software has the ability to save or export the design as a 3D mesh STL ( STereoLithography) file. ![]() ![]() The 3D printing software tool chain begins with CAD to create the 3D model.
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