About the threads and the bobbin case when embroidering
Many factors are involved in achieving a beautiful embroidery result. Using the appropriate stabilizer and hooping the fabric in the frame are two important factors mentioned earlier. (Refer to How do I hoop the fabric in the embroidery frame?) Another important point is the appropriateness of the needle and thread being used. See the explanation of threads below.
Thread
Upper thread
Use embroidery thread intended for use with this machine.
Bobbin thread
Use embroidery bobbin thread intended for use with this machine.
If you use threads other than those listed above, the embroidery may not embroider out correctly.
Bobbin case (recommended for embroidering with included 90 weight bobbin thread)
The included bobbin case is set for 90 weight bobbin thread. When you use different weights of bobbin thread, the tension screw on this bobbin case can be adjusted if necessary.
(1) Bobbin case (no color on the screw)
When embroidering on large garments (especially jackets or other heavy fabrics), do not let the fabric hang over the table. Otherwise, the embroidery unit cannot move freely and the embroidery frame may strike the needle, causing the needle to bend or break and possibly cause injury. Place the fabric so that it does not hang off the table or hold the fabric to keep it from dragging.