White 431 Stitch Length Knob

White 431 Stitch Length Knob

thingiverse

This part replaces the stitch length assembly of a White 431 sewing machine. The original part succumbed to zinc-pest, causing the knob to be unable to rotate. It integrates the zinc cam with the knob. The part may need to be tweaked a bit, but worked for me on the first try... I printed with about 0.3mm layer height. Less is probably better. Maybe it doesn't need any oiling?

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