To Finish the Horizontal Surfaces

In this operation, the Horizontal strategy is used to finish the horizontal features of the part.

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

Tool tab

1. Make sure that #14 - Ø5 R0.5 mm bullnose is still the current tool.

Heights tab

1. Click the Heights tab.
2. From the Top Height drop-down menu, select Model top.
3. Change Top offset: to: -1 mm

With the Top offset value set to 1 mm under the top plane of the part, the tool only machines the inside cavities of the part and not the upper surface.

Note: Alternatively, the top surfaces could be excluded in an Avoid surface selection.

Passes tab

The previous adaptive clearing operations left a maximum of 0.3 mm (Stock to leave) + 1 mm (Fine stepdown) + 0.1 mm (Tolerance) = 1.4 mm of material. This is a little too much material for the tool to remove in one pass, so we will do it in three 0.4 mm passes instead.

1. Click the Passes tab.
2. Enable the Axial offset passes check box.
3. Set Maximum stepdown: to: 0.4 mm
4. Change Number of stepdowns: to: 1

Linking tab

1. Click the Linking tab.
2. From the Retraction policy: drop-down menu, select Minimum retraction.

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 Finish Steep Areas with Contour...