Fagor 8070 BL - Types of Corner Rounding

Programming manual.
CNC 8070
11.
GEOMETRY ASSISTANCE
Controlled corner rounding, radius blend, (G05/G61)
·198·
(REF: 1709)
11.3.1 Types of corner rounding
There are 5 different corner contouring types. The first 4 execute the different corner
rounding types whereas the last one executes a square corner. The last one is aimed at
special machines (Laser, water jet, etc.), that use it to avoid "burning" the corner, thus not
being recommended for a milling machine.
Corner rounding is selected and defined through the parameters associated with the
"#ROUNDPAR" instruction. This instruction may have associated up to 6 parameters whose
meaning will depend on the type of corner rounding selected.
Type 1
#ROUNDPAR [1,e]
Set the maximum deviation allowed between the programmed point and the profile resulting
from rounding the corner.
The corner is rounded by giving priority to the machining dynamic conditions (feedrate and
acceleration). It executes the machining operation that is closer to the programmed point
without exceeding the programmed deviation and that does not require decreasing the
programmed feedrate "F".
The distances from the programmed point to the points where the corner rounding begins
and ends are calculated automatically and they cannot be greater than half the path
programmed in the block. Both distances will be the same, except when one of them is limited
to half the programmed path.
For this type of corner rounding, only the values of the first two parameters of the
"#ROUNDPAR" instructions are used, therefore, all parameters need not be included.
Type 2
#ROUNDPAR [2,f]
Set the percentage of the active feedrate "F" to be used to carry out the corner rounding.
It executes the corner rounding closer to the programmed point and that may be machined
at the set feedrate percentage.
#ROUNDPAR [1,e]
e: Distance between programmed point and real profile.
···
N70 #ROUNDPAR [1,3]
N80 G01 G91 G61 X50 F850
N90 G01 Y30
···
···
N70 #ROUNDPAR [1,3]
N75 G05
N80 G01 G91 X50 F850
N90 G01 Y30
···
N90
N80
?
?e
(X50 Y30)