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Mechanical Sewing Machines


How do mechanical sewing machines form different stitches?

By definition, a mechanical sewing machine forms stitches using gears and levers.

The vast majority of these machines are called lockstitch because they use two threads.

One thread is drawn from above by a needle down through the material.

Below the needle plate, a hook picks up the upper thread and wraps it around the lower thread. The needle rises pulling the thread taught until a knot forms inside the fabric.


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