Scanlab RTC 5 PC Interface Board Installation And Operation Manual page 506

Delayed Short set_wobbel_mode
List Command
Comments • For Mode = 0, the set_wobbel_mode command functions identically to the
set_wobbel
• If Mode <> 0, then a figure-of-8 motion will be activated. With figure-of-8s, broader
mid-line processing can be achieved via appropriate parameter values. If the specified
transverse and longitudinal amplitudes are identical, then the wobbel shape remains
stationary in space; otherwise the orientation of the wobbel shape follows the current
direction of motion.
If the command executes while a list contains a "freely definable wobbel shape" (see
set_wobbel_vector
this shape, otherwise the horizontal figure-8 shape is selected similarly to Mode = 1. If
you subsequently define a wobbel shape and the wobbel mode was activated with the
parameter Mode > 1, then a switch from the horizontal figure-8 to the wobbel shape
will automatically occur.
• The wobbel mode is terminated by setting both amplitudes and/or the frequency to
zero (more accurate for –n  Freq  n with n = 50000/65536 = 0.7629...).
• The frequency is signed. During the figure-of-8's first loop, the wobbel vector rotates
clockwise for positive values and counter-clockwise for negative values. Thus (especially
for ellipse-shaped wobbel motions), the inner and outer point densities of arcs can be
individually set independently of their actual direction of rotation.
• At the beginning of a marking, (after
generally set for the same value relative to the vector/arc startpoint; it is repeatedly
continued, however, for polylines (including arcs). For identical amplitudes
(Longitudinal = Transversal), the wobbel startpoint is permanently referenced to the
coordinate system, i.e. independent of the current direction of motion (as with the
®
RTC 4).
• For an angle, ellipse-shaped wobbel movements can result in more or less small jumps
after reaching the corner, depending on the current wobbel phase. This does not occur
(= "rounded corners") if the wobbel motion is exactly circular (Longitudinal =
Transversal).
• Longitudinal = 0 produces a sine-shaped wobbel motion across the direction of move-
ment.
• For "freely definable wobbel shapes", the parameter Freq has no meaning. It must
nevertheless lie within the valid range, because otherwise the wobbel mode will get
deactivated. This also applies to the parameters Transversal and Longitudinal.
• If the wobbel mode gets deactivated, then any already-defined wobbel shape will
remain active and will be used upon the next switch-on of the wobbel mode with
Mode > 1.
• When defining the wobbel shape and its frequency take the dynamics of the scan head
and laser into account. Otherwise, an overheating and even a permanent damage of
the system may occur, see
sing Appropriate Parameter
® ®
RTC 4 RTC 5 new command. In RTC
the amplitudes Longitudinal and Transversal by 16 (the permissible range of values is
correspondingly reduced to [1 ... 8191]).
Version info Last change with version DLL 537, OUT 537: Modes > 0
References set_wobbel, set_wobbel_control,
®
RTC 5 PC Interface Board
Rev. 1.9 e
10 Commands And Functions
command (see comments there).
and chapter 8.4 "Wobbel
set_wobbel
chapter 8.4.1 "Wobbel Shapes – Important Notes on Choo-
Values".
®
4 compatibility mode the RTC
set_wobbel_vector
Mode", page 167), then Mode > 1 selects
or a jump), the wobbel start point is
®
5 multiplies the specified values for
506