Generate a Pencil toolpath

  1. On the Manufacture workspace toolbar, click Milling > 3D > Pencil.

    The Pencil dialog opens.

  2. On the Tool tab, click Select to pick a tool. If you have not created a tool to use, In the left panel of the dialog, from the Fusion Library, pick a tool from the Sample Tools library.

    Tip: Ball type and tapered end mills are best suited for the Pencil finishing toolpaths.

    Select a tool

  3. On the Geometry tab, you may contain the toolpath area with a Machining Boundary and then select the face, edge, or sketch that represents the area to be machined. If no selection is made, the entire model will be evaluated for machining within the defined Stock box.

  4. To engage the toolpath to the full extents of the boundary or surface edge, enable the Contact Point Boundary parameter.

  5. On the Passes tab, set the Number of Stepovers desired and the Stepover cut spacing. A smaller distance will create a smoother surface finish.

  6. Optional steps:

    • To control the Stepover value automatically based on the desired surface finish, enter a Cusp Height value.

    • To control the order of the cuts use the Inside/Outside Direction parameters.

    • To change the cut direction, set the Direction parameter.

    • To reduce the NC program size, enable Smoothing.

    • To control the edge roll over amount, go to the Geometry tab, enable and adjust the Slope angle parameters.

  7. Click OK.

The toolpath is generated.

completed toolpath

Shown with the Number of Stepovers set to 2.