In this section…
Making the Hitch
Once thread is wound on a bobbin, a hitch is needed to prevent it unwinding — how this hitch is made depends on the direction in which the bobbins are wound.
Making a hitch with thread wound clockwise

Making a hitch with thread wound anti-clockwise

Making a double hitch
If you have made the hitch correctly and the bobbin still unwinds, try a double-hitch (shown below) which may hold better. Make two loops on top of each other, instead of the single one.

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