RTC
®
5 PC Interface Board
Rev. 1.9 e
8 Advanced Functions for Scan Head and Laser Control
173
• If the 3D option is not enabled or no 3D
correction table has been assigned, then 3D
marking commands will have the same effect as
2D marking commands. However, microvector-
ization will be calculated like a 3D command and
hence will influence the effective jump or
marking speed in the XY plane.
• If the 3D option is not enabled or no 3D
correction table has been assigned, then 3D
vector commands will have the same effect as 2D
vector commands. However, microvectorization
will be calculated like a 3D command and hence
will influence the effective jump or marking speed
in the XY plane (this doesn’t apply to the 3D arc
commands arc_abs_3d and arc_rel_3d).
• set_offset_xyz or set_offset_xyz_list can be
used for setting an offset z
0
for the Z coordinate.
In addition, set_defocus or set_defocus_list can
be used for defining an offset to the calculated
focal length, which will then appropriately affect
the Z output value (in the direction opposite to
z
0
).
• During a marking process (while a mark or arc
command is being processed), the scan system’s
focal length is continuously readjusted, so that
the laser focus remains sharp within the current
image plane. In contrast, during execution of a
jump command (or goto_xyz) readjustment of
the focus is not really necessary. Therefore, the
commands set_delay_mode and
set_delay_mode_list allow defining the value of
its
DirectMove3D
parameter to provide a jumping
method that changes the Z output value directly
(linearly) from its start value to its end value. This
can help to avoid needless movements of the Z-
axis.
• For 3D marking commands, the following
settings (if made) directly affect the X and Y
output values, but have no effect or only an
indirect effect on Z output values (also see
page 126):
– a wobbel motion enabled via set_wobbel or
set_wobbel_mode (see page 167).
– a Processing-on-the-fly correction enabled via
set_fly_x, set_fly_y, set_fly_rot or
set_fly_x_pos, set_fly_y_pos, set_fly_rot_pos
(see page 177).
– a coordinate transformation for the X and Y
output coordinates defined via set_matrix,
set_offset,set_offset_xyz, set_scale,
set_angle or corresponding list commands (see
page 161).
– a gain and offset correction activated via
auto_cal or set_hi (see page 199).
• The RTC®5 command set also includes 3D micro
vector commands (see page 197).
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