Adjust the bobbin screw. Also, check if it is broken.
If your stitch is too loose, the fabric will not be joined tightly.
To adjust the upper tension on your sewing machine for optimal stitching results, locate the tension dial on your machine and turn it to a higher number for tighter tension or a lower number for looser tension. Test the stitches on a scrap piece of fabric until you achieve the desired results.
To adjust the tension knob on a sewing machine for smooth and even stitches, turn the knob to a higher number for tighter tension or a lower number for looser tension. Test the stitches on a scrap piece of fabric until they are even and balanced.
To adjust the tension dial on your Brother sewing machine for optimal stitching results, turn the dial to a higher number for tighter stitches and a lower number for looser stitches. Test the stitches on a scrap piece of fabric to ensure the tension is correct before sewing your project.
To adjust tension settings on a sewing machine for different fabrics, turn the tension dial to a lower number for lightweight fabrics and a higher number for heavier fabrics. Test on a scrap piece of fabric to ensure the stitches are balanced.
Lower parts of the lockstitch sewing machine are the feed dog.
The purpose of the thread crank in a sewing machine is to manually raise and lower the needle, allowing the user to easily position the fabric and control the stitching process.
Upper and ther lower part of machine
To adjust the tension dial on a Brother sewing machine for optimal stitching results, start by setting the dial to the recommended setting for the type of fabric you are using. Test the stitching on a scrap piece of fabric and adjust the tension dial slightly higher or lower until the stitches are even and balanced. Remember to rethread the machine before making any adjustments to ensure accurate results.
Upper and ther lower part of machine
There are two tension adjustments on the home sewing machine. One is the top tension and the other is the bobbin tension. Both tension settings regulate the tension on the sewing thread. The top tension regulates the amount of tension on the thread that moves between the thread spool and the needle which produces the top stitches in your seam. The tighter the tension, the more taut the thread. The looser the tension, the more slack the thread. If tension is too high, the thread is strained, the stitches are tighter and the thread may break. If tension is too low, the thread is slack, and the stitches are loopy and loose. At ideal tension, the thread moves smoothly through the thread path and produces top stitches that are nice and even. The bobbin tension regulates the thread spinning in the bobbin and being pulled up into the bottom stitches. At ideal tension, the bottom stitches are nice and even, and cannot be seen from the top of your stitching. Refer to your sewing machine manual for the ideal tension setting on your particular sewing machine.
To adjust the thread tension dial on a sewing machine for optimal stitching results, start by setting the dial to the midpoint. Then, test stitch on a scrap piece of fabric. If the stitches are too loose, tighten the tension by turning the dial slightly higher. If the stitches are too tight, loosen the tension by turning the dial slightly lower. Continue adjusting and testing until you achieve balanced and even stitches.