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Bobbin Threading Do's and Doen'ts
Bobbin Case for a Singer Fashion Mate Model 237 Sewing Machine

Bobbin Case for a Singer Fashion Mate Model 237 Sewing Machine

Debbie Colgrove, Licensed to About.com
  • The thread on a bobbin should be as smoothly wound as the thread on a purchased spool of thread.
  • The thread on a bobbin should not exceed the size of the bobbin. (It is possible that the brake has been adjusted if the thread on the bobbin exceeds the edges of the bobbin and will need to be readjusted so the threading stops before the bobbin is over-wound.)
  • Never use a rough rusty bobbin in a sewing machine. If you are desperate to use a rusty bobbin, sand off any rust and oil the bobbin enough to prevent it from rusting again, until you can get to the store and replace the rusty bobbin.
  • Bobbins are not interchangeable between different machines. Bobbins are less expensive than sewing machine needles. Visit a local dealer or a reputable online dealer to get the bobbin that is correct for your machine.
  • Order extra bobbins for your machine so you can have bobbins ready to use when you change the color thread on your sewing machine.
  • Bobbin thread is a very lightweight thread. Although it is called bobbin thread it is not the thread that is always used in the bobbin. Bobbin thread is a lightweight thread for machine embroidery or machine basting. For normal sewing, use the same thread that you use in the upper threading of the sewing machine.
  • When you are sewing and the bobbin thread knots up or creates wads of thread, as much as it seems like it is caused by the bobbin, it is usually caused by the top threading of the machine or the sewing machine needle. More on Machine Trouble Shooting | Solutions to Loopy, Knotting Bobbin Thread
  • A Bobbin case must be threaded with the thread that comes off the bobbin. A bobbin is placed into a removable bobbin case so the thread and the slot form an upside-down "V". The thread is passed under the metal and out the side of the bobbin case.
  • A drop in bobbin, is a bobbin that is placed from the top or directly under where the fabric would be while you are sewing. A drop in bobbin also has a threading pattern that must be followed in order for the upper thread to form stitches with the bobbin thread.
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