Max. travel length w/out retracting
Maximum travel length in millimiteres (mm) without
performing a retraction. In many cases IceSL can avoid
retraction, for instance when traveling within
a solid layer. This setting controls the maximum
allowed length without any retraction. It will force
retraction to occur on any travel longer than the
selected value. This takes priority over any other
criterion. Setting a value of 0.0 will force to
always retract, while a large value will minimize
retraction. It is recommended to use large values.