Corner multi-pencil finishing

Use the Corner multi-pencil finishing page to create a multiple trace toolpath by taking contours from the un-machinable areas of a previous tool called the Reference tool. Use it to clean up corners that occur between non-tangential surfaces.

Output — Select which portions of the toolpath you want to generate.

Threshold angle — Enter an angle, from the horizontal, at which steep and shallow portions are split when you select an Output type of Steep or Shallow.

Cusp — Enter the cusp height. PowerMill calculates the stepover between tool passes using the cutter geometry and this cusp height.

Separate regions — Select to process each continuous pencil segment independently. This produces smoother results but nearby regions might be machined twice.

Separate Regions selected:

Separate Regions deselected:

Maximum passes — Use these settings to determine the number of passes that you want to create. Select Maximum passes and then enter the number of passes you want in the next field.

A Multi Pencil toolpath without any restrictions to the number of passes.

If you select Maximum Passes and enter the number of passes you want (in this case 2).

Tolerance — Enter a value to determine how accurately the toolpath follows the contours of the model.

Cut direction — Select the milling technology.

Select a Cut Direction from the following:

Thickness — Enter the amount of material to be left on the part. Click the Thickness button to separate the Thickness box in to Radial thickness Axial thickness . Use these to specify separate Radial and Axial thickness as independent values. Separate Radial and Axial thickness values are useful for orthogonal parts. You can use independent thickness on sloping walled parts, although it is more difficult to predict the results.

Radial thickness — Enter the radial offset to the tool. When 2.5-axis or 3-axis machining, a positive value leaves material on vertical walls.

Axial thickness — Enter the offset to the tool, in the tool axis direction only. When 2.5-axis or 3-axis machining, a positive value leaves material on horizontal faces.

Component thickness — Click to display the Component thickness dialog, which enables you to specify the thicknesses of the different surfaces.