You use the circular path function CT to program a circular path that connects tangentially to the previously programmed contour element.
Application
Requirement
- Previous contour element programmed
Before you can program a circular path with CT you must program a contour element to which the circular path can connect tangentially. This requires at least two NC blocks.
Description of function

The control moves the tool on a circular path, with a tangential connection, from the current position to the defined end point. The starting point is the end point of the preceding NC block. You can use at most two axes to define the new end point.
When contour elements uniformly merge into another without kinks, then this transition is referred to as tangential.
Programming a circular path CT
| ||
|
Note
Both coordinates of the contour element must lie in the same plane as the coordinates of the circular path.
Example
7 L X+0 Y+25 RL F300 M3 |
8 L X+25 Y+30 |
9 CT X+45 Y+20 |
10 L Y+0 |