You may have heard the expression, “There ain’t no such thing as a free lunch.” This may seem an odd way to get started, but I need to ask the question in all seriousness. There are many kinds of software for cnc, but the minimum software you will need includes: For more on how these various packages work, check our CNC Router Software article. The Control Software is self-explanatory, but the other three programs are what’s needed to produce the g-code files that control your CNC Machines motions. Here’s the lowdown for anyone who is a CNC Beginner. What is the most popular CAD Software for CNC?.What is the minimum CNC Software for a Beginner?.MeshCam: The world’s easiest CAM Software.Free G-Code Editor? Free G-Code Simulator? Free Conversational CNC?.I want a FREE Feeds and Speeds Calculator.