CAM MillFace/it

This documentation is not finished. Please help and contribute documentation.

GuiCommand model explains how commands should be documented. Browse Category:UnfinishedDocu to see more incomplete pages like this one. See Category:Command Reference for all commands.

See WikiPages to learn about editing the wiki pages, and go to Help FreeCAD to learn about other ways in which you can contribute.

Description

The CAM MillFace command creates a path to perform a facing operation on a horizontal surface. This operation is generally used:

to smooth out a rough stock surface,
to mill selected face(s) to desired depth in preparation for performing subsequent clearing operations within the boundary of the regions affected by this operation,
or to apply a finishing surface to the selected face(s).

This operation contains a DatiBoundaryShape property that allows for a modified selection area based upon the selected face(s).

Select one or more faces to be surfaced. Note: If selected faces exist at different heights, then all will be milled to the Final Depth setting.
There are several ways to invoke the command:
- Press the Face button.
- Select the CAM → Face option from the menu.
Select the correct DatiBoundaryShape setting to modify the milling area based on the face(s) selected as Base Geometry.
Adjust the other properties as needed. They are listed further below.

Using it on an inclined plane may produce unexpected results: it will still produce a path to cut a horizontal surface. The extent of the cut will be the vertical projection of the inclined plane, performed at a height corresponding to the lowest point in that plane.

Since the CAM tools work on the geometry of the selected edges/faces only, and do not relate to the rest of the 3D model, the paths will not go beyond the bounds of the chosen plane, even if it is surrounded by unused stock or air. This will leave unmachined corners. These can sometimes removed with one of the dress-up tools to be found on the CAM menu.

This tool will not work on a vertical plane or vertical non planar surface. Vertical operations can be achieved by using the face profile tool or edge profile tool. These will need the selection of a face or closed loop of edges including the top or bottom edge of the vertical surface desired). The extent of the path can then be reduced using the Boundary Dress-up tool to be found on the CAM menu. With the Dress-up tool, select Create Box option and reduce the size to limit the scope of the profile path. These settings will not allow the origin of the boundary box to be moved, however. This must be done by adjusting the Placement settings in the Tree View.
This will work on compound surfaces such as several vertical planes or cylindrical surfaces joined together, so long as they form one continuous surface.

Empty

Note : The names of some Properties in this list differ a little from the same settings used in the Task Window Editor.

Base

Note: It is suggested that you do not edit the Placement property of path operations. Rather, move or rotate the CAM Job model as needed.

Depth

Face

DatiBoundaryShape: Shape to use for calculating Boundary
DatiClearEdges: Clear edges of surface (Only applicable to BoundBox)
DatiExcludeRaisedAreas: Exclude milling raised areas inside the face.
DatiOffset Pattern: Clearing pattern to use. (Select in which manner the horizontal movements should be done.)

Path

Pocket

DatiCut Mode: The direction that the toolpath should go around the part ClockWise (CW) or CounterClockWise (CCW)
DatiExtra Offset: Extra offset to apply to the operation. Direction is operation dependent.
DatiStartAt: Start pocketing at center or boundary
DatiStep Over: Percent of cutter diameter to step over on each pass
DatiZig Zag Angle: Angle of the zigzag pattern
DatiOffset Pattern: Clearing pattern to use
DatiMin Travel: Use 3D Sorting of Path
DatiKeep Tool Down: Attempts to avoid unnecessary retractions.

Rotation

DatiAttempt Inverse Angle: Automatically attempt Inverse Angle if initial rotation is incorrect.
DatiEnable Rotation: Enable rotation to gain access to pockets or areas not normal to Z axis.
DatiInverse Angle: Inverse the angle of the rotation. Example: change a rotation from -22.5 to 22.5 degrees.
DatiLimit Depth To Face: Enforce the Z-depth of the selected face as the lowest value for final depth. Higher user values for final depth will be observed.
DatiReverse Direction: Reverse orientation of Operation by 180 degrees.

Start Point

DatiStart Point: The custom start point for the path of this operation.
- DatiX: X-distance value
- DatiY: Y-distance value
- DatiZ: Z-distance value
DatiUse Start Point: Make True, if manually specifying a Start Point. Set the start point in the property data Start Point field.