PCD Calculator and Programming App What is the VMC machine? A VMC is a machine with a CNC (Computer Numerical Control) controller. As mentioned, the cutting head in this milling machine is vertical and is a particular type of milling machine where the spindle runs in a vertical axis known as the “z” axis. They are typically enclosed and most often used for cutting metal. PCD calculator and programming application is a kind of application which helps new CNC/VMC Programmers to know the coordi