Real-world objects are solid, the 3D model must be solid too.
If you have been cautious while modeling, most of the difficulty you might encounter when printing your model in 3D has already been avoided.
This chapter will show you how to get your models ready to send to these machines. These can be designed in FreeCAD, and then made real in different ways, such as communicated to other people who will then build them, or, more and more frequently, sent directly to a 3D printer or a CNC mill.
One of the main uses of FreeCAD is to produce real-world objects.
