When you generate toolpaths, they are displayed in the graphics window using the technique (centerline, 2D, and so on) that you selected. You can control the simulation using the video-style buttons in the Simulation toolbar.
The Eject button erases the simulation from the graphics window.
The Stop button cancels a simulation and clears it from the screen.
The Play button plays the simulation with the type selected in the Home tab > Simulation panel > Sim Mode menu.
The Pause button suspends the simulation. The button changes to the Play button after it is clicked.
The Single Step button moves the simulation by one tool move. The keyboard shortcut for this button is Alt+F3.
The Single Step Back button moves the simulation by back one tool move.
The Play to Next Operation button simulates until the end of this operation. Click the triangle to the right of the button to display the following options:
The Clear toolpath button is for centerline simulation only. If you have paused your simulation, or if you are using one of the simulation tools above, this button clears all of the centerline toolpaths simulated up to that point.
To adjust the speed of a centerline, 2D, or 3D simulation, use the Sim Speed slider on the right-hand side of the controls. Slide to the right to speed up, and move to the left to slow the simulation down. The slider of the simulation toolbar also affects the display for rapidcut simulation. If the slider is all the way to the right, only the final simulation result is displayed. Position the slider bar further to the left to see intermediate results.