singer heavy duty zigzag stitch

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  • 3. Interlocking with Bobbin Thread The bobbin case, which holds the bottom thread, is designed to catch this loop. As the needle continues to move up, the loop tightens around the bobbin thread, creating the lock stitch. Once the loop is locked in place, the needle continues its downward motion, pulling the newly formed stitch tight against the fabric.


  • What is an Overlock Machine?


  • Conclusion


  • Noise and Size: Due to their more powerful motors, heavy-duty sewing machines may produce more noise compared to standard sewing machines. They also tend to be larger and heavier, so consider the space in your sewing area before purchasing.
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