What Is CAD for 3D Printing?
CAD (computer-aided design) software for 3D printing is a program you can use to create accurate models and prototypes of your ideas on your computer. You can save and export these models as 3D printer files – most commonly OBJ and STL files. Your 3D printer reads that data and prints your item, using a series of cross-sections to build it one layer at a time.