Things You'll Need
Instructions
Remove any thread completely from the bobbin. Drop the empty bobbin onto the bobbin spindle on your machine. This is on the top right of most machines.
Slide the thread onto the other spindle. Push the end of the thread through the tension disk. Some machines may have more than one tension disk, so make sure you feed it through all of them. Holding the thread taut, unwind the spool until it reaches the bobbin.
Wind the thread clockwise tightly several times around the bobbin. Continue until the thread will stay wound around the bobbin on its own.
Move the bobbin spindle into the winding position. This is typically done by moving it to the right. Press the foot pedal or turn on the machine to activate the winding mechanism. It will shut off automatically when the bobbin is full.
Use scissors to cut the thread, and remove the filled bobbin from the spindle.