This is the pattern cam mechanism and stitch-width control in the Singer 403a. The cam is the black disk at right. A cam follower traces the pattern on... | By Dr. Dave's
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JUKI MF-7523-U11-B56/X83047 3N COVERSEAM 5.6MM FLAT BED HEAD ONLY | Juki Industrial Sewing Machines UK
This is the pattern cam mechanism and stitch-width control in the Singer 403a. The cam is the black disk at right. A cam follower traces the pattern on... | By Dr. Dave's
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