Mitsubishi CNC Corner Chamfering and Rounding: Precision Corner Processing
Mitsubishi CNC Corner Chamfering / Corner Rounding
On machining centers with Mitsubishi CNC the Chamfering at any angle or corner rounding is performed automatically by adding “,C_” or “,R_” to the end of the block to be commanded first among those command blocks which shape the corner with lines only.
Mitsubishi CNC Corner Chamfering “,C_”
The corner is chamfered in such a way that the positions produced by subtracting the lengths commanded by “,C_” from the imaginary starting and final corners which would apply if no chamfering were to be performed, are connected.
Programming
N100 G01 X__ Y__ ,C__ ; N200 G01 X__ Y__ ;
Corner rounding is performed at the point where N100 and N200 intersect.
Parameters
| Parameter | Description |
|---|---|
| ,C | Chamfer size |
Example

Mitsubishi CNC Corner Chamfering
G91 G01 X100., C10. ; X100. Y100. ;
Mitsubishi CNC Corner Rounding “,R_”
The imaginary corner, which would exist if the corner were not to be rounded, is rounded with the arc having the radius which is commanded by “,R_” only when configured of linear lines.
Programming
N100 G01 X__ Y__ , R__ ; N200 G02 X__ Y__ ;
Corner rounding is performed at the point where N100 and N200 intersect.
Parameters
| Parameter | Description |
|---|---|
| ,R | Arc radius of corner rounding |
Example

Mitsubishi CNC Corner Rounding
G91 G01 X100., R10. ; X100. Y100. ;
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