Optimum OPTImill F 80 Betriebsanleitung Seite 328

Brief instruction 808D Milling
Basic Theory
User
Behaviors at
interface
corners
Activation/deactivation of the
tool radius compensation
when working on the part
contour.
G41 / G42 and G40
With G41/G42,
the tool radius compensation
will be done in the direction of
travel.
G41:Compensation to left
G42:Compensation to right
G41
G40:Compensation of the
along the tool motion,
radius can be deactivated
tool is always on the
left of the contour.
808D
Create Part Program Part 1
G42 → direction along
→ direction
the tool motion, tool is
always on the right of
the contour.
Arrow indicates the
direction of tool motion
along the contour.
When traversing circular
contours with cutter radius
compensation, it should be
decided whether the feed rate
should be calculated along the
contour of the workpiece or
along the path defined by the
center point of the cutting tool.
When using a contour with a
feed rate defined by the CFC
code, the feed rate will be
constant at the contour, but in
some cases, it may cause
increases in the feed rate of the
tool.
This increase could damage the
tool if excessive material is
encountered at the contour; this
function is normal for finish
cutting of contours.
The CFTCP command ensures
a constant feed rate, however a
constant feed rate may not be
ensured at the contour, which
may cause deviations in
surface finish.
Page 328
OPTIMUM
M A S C H I N E N - G E R M A N Y
Contour feedrate with
CFC
Feedrate calculated
Direction for
when using tool
compensation, left of
center, inside or
contour will be G41
outside of the contour
The result of the two commands will be such
that the cutter goes very fast around a corner
or slow on the contour.
Operating and Programming — Milling