![]() From that, the control calculates where the arc centre is using the algorithm for an arc through 2 points with a given radius. When using the "R" format, within the program, you specify the start and end coordinates, plus the radius of the arc. If its not, the program is halted and an alarm is raised. The main reason for treating the "R" format with caution, is that when using I/J/K format, a check is done by the control to ensure the radius of the arc from the arc centre to the end point of the arc specified in the program is the same, within a tlerance set in parameters, as the radius from arc centre to the start point specified in the program. So i think not to confuse myself i'll do the I J thing.LOLWhen using I/J/K format, you describe to the control, the position of the arc centre relative to the start coordinate of the arc, which you have also specified in the program. A lot of folks say to stay away from that.
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