HEIDENHAIN TNC 620 User Manual page 507

Data transfer from CAD files | CAD Import (option 42)
Setting a datum at the intersection between two elements
To set a datum at the intersection between two elements:
Select the mode for specifying the datum
Select the first element (straight line, full circle, or
circular arc) using the left mouse button
The control highlights the element.
Select the second element (straight line, circle, or
circular arc) using the left mouse button
The control sets the datum icon on the point of
intersection.
In addition, align the coordinate system as needed
Further information: "Adjusting the orientation of
the coordinate system", Page 507
Operating notes:
If there are several possible intersections, the control
selects the intersection nearest the mouse-click on
the second element.
If two elements do not intersect directly, the control
automatically calculates the intersection of their
extensions.
If the control cannot calculate an intersection, it
deselects the previously selected element.
Once a datum has been set, the control displays the datum icon with
a yellow surface .
Use the following icon to delete a datum that has been set
Adjusting the orientation of the coordinate system
The following conditions must be met in order to align the
coordinate system:
The datum has been set
There are elements next to the preset that can be used for the
desired alignment
The position of the coordinate system is defined by the orientation of
the axes.
To align the coordinate system, proceed as follows:
Select an element located in the positive X
direction using the left mouse button
The control aligns the X axis.
The control changes the angle in C.
Select an element located in the positive Y
direction using the left mouse button
The control aligns the Y and Z axes.
The control changes the angles in A and C.
For angles not equal to 0, the control shows the List View
in orange.
HEIDENHAIN | TNC 620 | Klartext Programming User's Manual | 01/2022
.
12
507