carriage
min_skip_width
mswidth
All
The minimum blank width that should be skipped. Blank regions smaller than this
width may or may not be skipped, while blank regions equal to or larger than
this width will be skipped.
Set this parameter to the smallest blank width the customer will typically
encounter in their images. The larger this parameter, the fewer blank regions
may be skipped but the faster the potential skip velocity. The smaller this
parameter, the more blank regions may be skipped but at a slower overall
velocity. If set too small, the carriage may not be able to skip within the
width specified, which would essentially disable blank skipping.
The blank skip ratio (see notes in "carriage msspeed") is calculated once at the
start of each plot, and is used for the duration of the plot. When skipping a
blank region, the carriage must reach a velocity equal to the blank skip ratio
times the plot velocity before decelerating back to plotting. This complete
cycle is necessary to ensure the swath boundaries remain in the same position
when plotting resumes. Therefore there is a minimum width that may be skipped,
dependent on the time it takes to accelerate to skip velocity and back to plot
velocity again. The larger the minimum width, the more time the carriage has to
perform this cycle and the higher the possible skip speed.
The blank skipping speed will be limited by the minimum skip width until the
maximum carriage skip velocity is reached ("carriage msspeed") or until the FDPE
holds less image data than the minimum skip width (note that the FDPE has an
internal limit of 4088 scanlines in memory, about 1.7 inches of image at 2400
dpi, so increasing the memory size may not have any effect). With "verbose
plot" set to 2 during plot setup, the firmware diagnostic output will indicate
whether the minimum skip width is limiting the blank skipping speed or not.
uint16
1000
200 to 10000 [inches]
Only present on machines equipped with the blank skipping feature. Only used
by the firmware at the start of a plot when blank skipping is enabled (see
"carriage skip").
In addition to the required acceleration-skip-deceleration skipping cycle, a
number of blank rotations must be used to re-learn the focus prior to resuming
plotting ("carriage bfrlearn"). Even more blank rotations are required to
compensate for orthogonality (the natural plotting angle), and more still for
overlapped swaths, if any. These extra rotations are subtracted from the
minimum skip width prior to calculating the maximum skip speed that will fit
within the remaining width.
Not all blank regions equal to or larger than the minimum skip width will be
skipped. The carriage can only start and end skipping on a swath boundary, so
partially blank swaths are ignored.
cfg