CNC Simulator Pro

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12.2.36.2. Roughing

To create a roughing operation, first draw a contour of the part on the layer.
 
 
Next, add two points to the layer. These points are crucial, as they represent the corner points of the "operation window" or workspace. The first point drawn on the layer will be the starting point of the operation, while the second one will be the endpoint (the opposite corner of the operation window).
 
Double-click on the contour layer (or click its gear button) to open the layer parameters. Ensure you change the layer type to Roughing.
 
 
Close the operations parameters dialog by clicking OK.
 
The layer will turn red, indicating that it is missing its start and endpoint. Let's add them now.
 
Click [Point] in the SimCam menu and click where you want the rough cuts to begin.
 
The starting point will appear orange with a green outline.
 
 
Now, click again to place the endpoint.
 
Observe how SimCam draws a rectangle around the operation window.
 
SimCam will perform all work within this window. It will also determine the cutting direction by looking from the starting point towards the endpoint. In this case, since the endpoint is to the left of the starting point, the cutting direction will be from right to left. As the endpoint is lower than the starting point, it will cut downward in the X-axis.
 
Reopen the layer parameters and set values like Depth of Cut, spindle RPM, feed rate, etc., as desired. Close by clicking OK.
 
 
Let's review the parameters that can be set for a roughing operation.
 
 
Contour Cut: If checked, a final contour cut will be automatically added to the operation.
 
Zig Zag: Creates a toolpath with a back-and-forth Zig Zag pattern. Note that your tool insert must be able to cut on both sides for this method to work.
 
Zig Zag return depth: If set to a value other than 0, the cutting depth for the return cut in a Zig Zag method will be controlled by this value. Using a lower cutting depth on return cuts can often prevent tool damage.
 
Clearance: Enter the amount of clearance for the final contour. This value is usually set to leave some stock material for the final fine cut.
 
Separate X, Z clearance: Check this box and enter your values if you want different clearances for the X and Z axes.
 
Cut along axis: Specify along which axis SimCam should perform length cuts. The most common method is length cuts along the Z-axis.