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Old 11-10-2022, 03:49 AM
  #13  
LGJARN52
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Join Date: Feb 2014
Location: Davenport, Iowa
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My best guess would be that it's an attachment to give the perfect 1/4" seam. Suction cups hold it down to the table and your pressure foot goes where it's indented. Fabric slides along the long acrylic pieces.
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