Arc defined by three points (G09). Fagor CNC 8055 para otras aplicaciones, CNC 8055 para fresadoras, CNC 8055 for milling machines, CNC 8055 for other applications

6.

Programming manual

6.6

Arc defined by three points (G09)

Through function G09 you can define an arc by programming the endpoint and an intermediate point

(the starting point of the arc is the starting point of the movement). In other words, instead of programming the coordinates of the center, you program any intermediate point.

The endpoint of the arc is defined in Cartesian or polar coordinates, and the intermediate point is always defined in Cartesian coordinates by the letters I,J, or K, each one being associated to the axes as follows:

Axes X, U, A

Axes Y, V, B

Axes Z, W, C

==>

==>

==>

I

J

K

In Cartesian coordinates:

G17 G09

Polar coordinates:

G17 G09

Example:

X±5.5

R±5.5

Y±5.5

Q±5.5

I±5.5

I±5.5

J±5.5

J±5.5

CNC 8055

CNC 8055i

·M· & ·EN· M ODELS

S OFT : V01.6

X

·90·

Being initial point X-50 Y0.

G09 X35 Y20 I-15 J25

Function G09 is not modal, so it should always be programmed if you wish to execute an arc defined by three points. Function G09 can be programmed as G9.

When G09 is programmed it is not necessary to program the direction of movement (G02 or G03).

Function G09 does not alter the history of the program. The same G01, G02 or G03 function stays active after finishing the block.

Function G09 may not be used to programmed a full circle because all three points must be different.

The CNC displays the corresponding error code.