To Machine Steep Areas Using Contour

There remains between 0.2 mm and 0.4 mm material left on the part (0.3 mm stock to leave plus/minus 0.1 mm tolerance). Several semi-finish operations will be used to reduce this material.

Use a Contour operation to handle the steep areas of the part.

1. On the ribbon, click CAM tab 3D Milling panel Contour .

Tool tab

1. On the Tool tab, click the button.
2. Select the tool #20 - Ø10 mm ball from the Tutorial4 library.
3. Click to close the Tool Library dialog.

Geometry tab

1. Click the Geometry tab.
2. From the Tool containment: drop down menu, select Tool center on boundary.

We want to confine the machining to steep areas with this operation. This can be achieved by limiting the slope range.

3. Enable the Slope check box.
4. Change From slope angle to: 60 deg
5. Change To slope angle to: 90 deg

Passes tab

1. Click the Passes tab.
2. Set Tolerance: to: 0.02 mm
3. Set Maximum stepdown: to: 1 mm
4. Enable the Order by depth check box.
5. Enable the Stock to Leave check box. Use the default values of 0.1 mm for this operation.

Linking tab

1. Click the Linking tab.
2. From the Retraction policy: drop-down menu, select Minimum retraction.
3. Change Maximum stay-down distance: to: 10 mm
4. Expand the Ramp group and change Ramping angle (deg): to: 10 deg

Start the Calculation

1. Click at the bottom of the Operation dialog box, or right-click in the graphics window and select OK from the marking menu, to automatically start calculating the toolpath.

The toolpath is now calculated and a preview appears in the graphics window.

Continue to To Machine Shallow Areas Using Scallop...