The easiest way to spot unbalanced tension is to look for visible knots or loops at the end of each stitch. When the bobbin thread shows on the right side, the needle tension is too tight or the bobbin thread, too loose, as shown at left in the illustration below.
How do I know if my bobbin tension is correct?
The thread should unwind just slightly and the bobbin case should drop an inch or two. If the thread unwinds without resistance and the case slips to the floor, your bobbin tension is too loose. If the bobbin case doesn’t budge, your bobbin tension is too tight.
What is wrong with the tension on my sewing machine?
Poor thread tension on a machine-sewn seam can result in an unstable seam, puckering, or just plain unattractive stitching. Perfect machine stitches interlock smoothly and look the same on both sides of the fabric. If you see small loops on the right or wrong side, the thread tension isn’t correct.
Why is my thread bunching underneath?
A: Looping on the underside, or back of the fabric, means the top tension is too loose compared to the bobbin tension, so the bobbin thread is pulling too much top thread underneath. By tightening the top tension, the loops will stop, but the added tension may cause breakage, especially with sensitive threads.
When should I adjust the tension on my sewing machine?
When lower tension is too loose (or upper tension is too tight), knot is visible on right side (left). When upper tension is too loose (or lower tension is too tight), knot is visible on wrong side (right). Tensions can still need adjustment even if they’re balanced.
What tension should I use for stretchy fabric?
For a stretchy fabric, it would be best if you set the upper tension level between 3-4. This adjustment is also a neutral level of tension setting. Step 5: Now, after you have attached the correct needle, stitch type, and tension setting, it is time to test the final stitch on your fabric.
What tension should I use for thin fabric?
The standard tension setting on most sewing machines is 5, which is ideal for the majority of fabrics, you will need to set it tighter for lightweight fabrics such as silk and chiffon and looser for heavier fabrics such as denim or canvas.
How do you fix the bobbin tension on a Singer sewing machine?
Place a small screwdriver on the head of the screw on the side of the bobbin case. Turn very slightly clockwise to increase the tension on the Singer bobbin. Turn slightly counterclockwise to decrease the bobbin tension.