How to define cut area in a STEP imported model where faces and edges are not consistently defined in an orderly grid of rows and columns?
Use the “Isocline Curve” command to define the guide curve(s) or the boundaries of the cut area in a “Fixed Contour”, “Streamline” or “Guide Curve” CAM operation.
“Isocline Curve” creates curves on surfaces where the surface angle relative to a defined reference direction is constant.
It is possible to define one direction resulting in a single curve or a range with an optional interval that will generate two or more curves inside the range.
In our example, the requisite is to do a finish pass at the highlighted region bottom.
To accomplish this, we need to define an horizontal line at 0 degrees to an also horizontal reference direction to create a tangent to bottom faces isocline curve.
If you enter start/end line angles range you create more than one isocline curve.
Once you have the curves crated you can use them to define cut area in an NX CAM operation that better suits your need.