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This sets the maximum allowable carriage speed while skipping, in mils per
second. The acceleration towards skip velocity is linear as opposed to the
acceleration towards move velocity which is optimized as a curve. Therefore,
this velocity should be set about 20 percent below the maximum carriage speed
("carriage mspeed") to ensure the carriage doesn't stall while accelerating to
skip velocity.
The actual carriage skip velocity will be an integer ratio of the plot velocity.
This is necessary so the swath boundaries remain in the same position when
plotting resumes. Given the maximum skip speed and the other skipping-related
parameters, the carriage firmware will calculate the highest possible ratio for
the skipping velocity (referred to as the "blank skip ratio").
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