FeatureCAM provides several types of simulation:
Centerline simulation. Lines are drawn that represent the center of the tip of the tool. Rapid moves (G0) are shown in green and lines and arcs (G1, G2, G3) are shown in black. These colors can be changed if desired. This simulation method is usually the fastest.
2D Simulation. For turning, this style shows a cross section of the part. For milling this style shows a flat (from the top) view of the part, with each tool being shown in a different color.
3D Solid Simulation (sometimes called Visicut). This style shows a three dimensional shaded rendering of the initial stock and simulates material removal in 3D. You can optionally display the holder. Any gouge caused by holder interference or the tool hitting the part during a rapid move is displayed in pink. For turning simulation a 3/4 cut-away view is optionally available to view ID cuts.
3D RapidCut. Shows a very fast simulation of a 3-axis milling job. Can also be used for 2.5-axis milling, but is best for 3-axis milling.
Full Machine Simulation. Allows the user to show the motion of the entire machine tool.
With all simulation methods, VCR-style controls are used to pause, stop and step through the toolpath, providing the user with fine control over the process.