|This task shows you how to insert a ZLevel
operation into the program.
ZLevel operations are finishing or semi-finishing operations
that machine the whole part by parallel horizontal
planes that are perpendicular to the
To create the operation you define:
tool to use ; you have the
choice of end mill
Only the geometry is obligatory, all of the other requirements have a
- make the Manufacturing Program current in the specification
tree if you want to define an operation and
the part/area to machine at the same time,
- or select a machining feature from the
list if you have already defined the area to machine and
now you want to define the operation to apply to it.
Below we are going to see how to do the first of these.
Basic1.CATPart then select Machining > Surface Machining in
the Start menu.
ZLevel dialog box is displayed.
A ZLevel entity and a default tool area added to the program.
The dialog box opens at the geometry tab page
This page includes a
sensitive icon to help you specify the geometry to be machined.
The area that represents the part geometry is colored red indicating that
the geometry is required
or defining the area to machine. All the other geometry parameters are
Right-click the red area that represents the part
Choose Select faces... in the contextual menu and select the
belt of faces around the outside of the part.
The edges surrounding the selected faces are highlighted. Click OK
to confirm your selection.
Click Tool Path Replay
A progress indicator is displayed.
You can cancel the tool path computation at any moment before 100%
You will see that the outside of the part has been machined.
If a tool path cannot be
computed because of invalid faces,
an explicit warning message like this one will appear:
Each invalid face is highlighted in red, with an arrow
pointing on it.
This visualization is removed when you close the main
dialog box or
when you select Remove in the contextual menu.
Click OK in the Warning box to revert to the main dialog
In the Geometry tab, a message Ignore invalid faces: No
You can either:
- close the dialog box.
When you reopen it, the Ignore invalid faces: No will not
- heal the defective geometry and restart the computation.
If it is successful the message Ignore invalid faces: No
- ignore the invalid faces. Click the text Ignore invalid
It will turn to Ignore invalid faces: Yes and the
computation will continue.
The message remains displayed as a warning.
||Be very careful when you choose to ignore invalid faces.
We recommend that you ignore only faces that will not affect the tool path.
Otherwise this may lead to defective tool paths.