Chamfered programming of CNC milling machine
And then use G01XY (the coordinates of the intersection), R5 .; can be processed out of the chamfer of R5.
Flat angle with G01XY (coordinates of the intersection), C5 .;
Simple programming know a coordinate point on it, with two lines in the middle of the inverted R5 fillet to do: first know the intersection of two lines coordinates.
The most common way is to know the arc or flat angle of the two coordinate points, round with G02 / G03, flat angle with G01 programming out.