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Efficient Transfer Planning for Flat Knitting

    swatch knit with control-stretch-expand transfer plan
    swatch knit with schoolbus transfer plan
    swatch knit with schoolbus+sliders transfer plan
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    25m 37s
    Schoolbus
    6m 28s
    Schoolbus+sliders
    6m 49s

Abstract

Industrial knitting machines form fabric by manipulating loops of yarn held on hundreds of hook-shaped needles. Transfer planning algorithms generate a sequence of machine instructions that move loops between their current needles and given target needles. In this paper we describe how to compute the run-time cost of a transfer plan in terms of machine passes, and compare the plans generated by several existing and new transfer planning algorithms under this metric over a a large benchmarking set of transfer operations taken from example flat lace patterns, along with synthetically generated patterns.

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