This video shows a knitting machine in action. Singer 321 knitting machine has a punchcard-based patterning mechanism. It is a standard (4.5 mm gauge) machine and works really well (despite being over 50 years old). the video demonstrates full bed knitting, tuck and slip stitch.

Read more about this model in my Knitting Machine Encyclopedia:
https://mightyknittymachines.com/sing...

Read more about this this particular machine on my blog (https://thoughtsandknits.com/2022/05/....
It is available in my Etsy store (https://www.etsy.com/listing/12205576....

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