If your budget is truly zero, consider stepping away from Exocad entirely and exploring legitimate free dental CAD software. These won't match Exocad's power, but they are legal and safe.
While free Exocad software options can be beneficial, there are limitations and considerations to keep in mind: Free Exocad Software
What is your current (e.g., intraoral scanner brand, 3D printer, or milling machine)? Share public link If your budget is truly zero, consider stepping