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Old 03-28-2021, 04:20 AM
  #2  
Gymnast2
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Join Date: Feb 2020
Location: Copenhagen
Posts: 61
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I just like to add, that the normal mechanism I have seen to make the same kind of movement are made with the Arm Shaft and Arm Rock Shaft like you see on a Singer 66 and a lot of other sewing machines. This is from the parts list of a Singer 66:


Attached Thumbnails singer-66-arm-rock-shaft2.jpg  
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