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Sew a trial seam on scrap fabric. Minimize the flaws by setting tensions to keep the flaw on the underside instead of the facing side of the fabric. Now drop the presser foot, and test again. Continue making slight adjustments until your get a stitch that pleases you. To achieve these perfect stitches the upper and lower threading must be just right. The sewer may sew along thinking all is fine, only to cry out in anguish when the turn the fabric over to see gobs of unsightly tangled threads. Each team pulls across the stream. The stitches should be snug and show no extra threads on top or bottom. One tug of war team pulls up and another pulls down." Perhaps the most mon plaint sewing machine users make, is about their tensions. In this case you may need to disassemble the tension assembly to make the repair, or have a technician to do. Next, adjust the upper tension to equalize the lower tension. Place it back in its carrier. If the lower team or bobbin team pulls harder than the upper tension team, excess thread will collect under the fabric out of sight until you lift the fabric to see ugly bunches of thread. In a sense you might say poor sewing machine tensions cause extreme user tensions. Sew a straight stich and then a medium zig zag. Or the thread may pucker up in little balls on top of the fabric. Ignore the numbers on the tension dial, unless they are really low or really high. There are a dozen places where jagged edges, dirt, burrs, or other rough spots can snag the thread resulting in poor tensions. It may even look fine on top while the threads jam up underneath. If the upper thread does not seat properly into the tension assembly, problems result. When you look at the seam from the top side, you should see a smooth even flow of thread with tiny holes into the fabric. Properly set tensions should produce stitches with the upper and lower thread locked together in the center of the fabric. Some of these issues can be resolved by using better thread, replacing the needle, using the right needle, or using better fabric. The threading may be faulty. The thread, the needle, the fabric, and the machine can all contribute to small challenges. Missing a thread guide, tension spring, or the bobbin tensioner can cause problems. Usually, you will see bubbles, balls, or bunches of thread almost as soon as they stitch. Dull needles cause problems.The outcry of frustrations can shatter creativity. This usually does not require adjustment unless you change the size of thread significantly. Dirt causes problems. Imagine the fabric is a stream of water. You should feel very little resistance. Bad thread causes problems. The thread should flow smoothly. When you turn the fabric over, you should see exactly the same quality stitching as you saw from the top side. When you understand how your sewing machine tensions work, you can adjust them with confidence. Be intentional and careful to insure everything is just right. Test it to make sure there is moderate resistance on the thread. Check the tension spring for any debris or lint that may have collected under it and clean it out. If the upper team pulls harder than the lower team, excess threads pop up on top of the fabric. Avoid frustration. Slide the thread under the tension spring. If you have good tension with straight stitches, but one side of the zig zag is still not just right. Avoid sewing on finish fabric, until you have confidence that your stitch quality is what it should be. Once you reach the needle, gently draw on the thread two or three inches. Examine the stitch quality. If there is a snag on spool or on one of the thread guides, problems result. Some suggest that a professional sewing machine repair person make these adjustments when needed. Is there more resistance? Good. Watch out for anything that might snag the thread. Take your bobbin out. Narrowing and shortening the zig zag stitch can also help. The threads are like ropes across the stream. You may need to rely on some trial and error until you get it just right. "I hate this machine! All it does is gum the threads up. In those rare instances where your best efforts fail, you can always rely on your local sewing machine repairtechnician. Check to make sure not lint or gunk has messed gotten stuck between the tension discs. When the finished seam has faulty tension, it can cause even the most meek to cry out. The drag or resistance of the upper tension system and the bobbin tension system must balance each other precisely. Shoe Rack Wholesale suppliers . Sometimes things just do not work perfectly. Watch out for rough spots. Remember, your goal is to provide the same or equal tension from the upper and lower threads. What causes poor sewing machine tensions? There are many possible sources. Is the thread wound evenly? It should be. Remember to lift the presser foot while threading. Begin your corrective efforts by rethreading the upper thread
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[ ۱۳ دى ۱۴۰۱ ] [ ۰۵:۴۸:۴۹ ] [ wdawda ]
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