Question about Brother Sewing Machines

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Lower thread bunches up under fabric; this occurs with variety of fabric weights (I have tried range from linen to corduroy.) I have adjusted thread tension along the entire range (upper and lower) and cleaned and oiled compartment and all areas indicated in owner's manual.

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Unlikely as it may seem, it is probably in your upper threading. Insert a new needle, then totally rethread with good thread in different colors (same weight upper and bobbin). Now try this test, with the presser foot up, pull the top thread, it should feed smoothly, now lower the presser foot, pull the thread again, it should barely move. This usually seats the thread in the tension discs and you can see which is giving the problem. Also, try your tension at 3 and use a good needle inserted all the way up in needle shaft, plus flat side facing away from you. I hope this solves your problem, sometimes the little buggers don't let the thread seat right and make you crazy.

Posted on Dec 31, 2010

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2 Answers

I'm getting a 'bird's nest' of thread on the bottom of my stitching...Why


needle thread tension is too light
increase that tension setting

Nov 19, 2016 | Sewing Machines

2 Answers

I have a sewing machine. When I try to use it, the bobbin thread bunches up into a mess and stops the cloth from advancing. HOW do I solve this problem?


Sounds like what is normally referred to as "bird nesting" or thread nesting which is essentially caused, in the majority of cases, by incorrect threading.

Advise your wife to always raise the presser foot when threading the machine. This releases the tension disk so the thread will seat properly. If the thread is not seated in the tension disk, the upper thread will loop and knot under the fabric causing "birds nests"--an ugly mess of thread!

Be sure to install new needles frequently. A bent, dull, or nicked needle will be the cause of many frustrations. Also, avoid old or bargain bin thread. And use the proper needle for the thread and fabric of the project.

https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=2&cad=rja&uact=8&ved=0ahUKEwij4crWxcnMAhVN9GMKHbZdBGYQFggjMAE&url=http%3A%2F%2Fwww.schmetzneedles.com%2Flearning%2Fpdf%2Fschmetz-needle-chart.pdf&usg=AFQjCNHTR52AmqwzvyCjbXmD5Ch52Va5_Q

The correct tension has been achieved when the upper thread and bobbin thread meet in the middle of the fabric. The starting point is usually the midway point between high & low tension number, and then testing and tweaking. This does not mean, however, that the tension needed for corduroy fabric will work on silk. There is usually some tweaking involved with every project, ie needle size & type, thread weight & material, type of fabric (heavy, light, knit, woven, etc.)

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May 08, 2016 | White Sewing 2037 Mechanical Sewing...

1 Answer

My thread bunches under me material and can' t sew


Sounds like "thread nesting" also called "bird nesting." Usually, it is a result of incorrect threading, incorrect tension, or the thread not being properly seated in the tension disk.

Remove the thread.
Install a brand new needle.
RAISE the presser foot and rethread the machine from the beginning making sure the thread path is correct.
Set the upper tension to the midway point between low & high numbers.
Test.
The correct tension is achieved when the upper and bobbin threads meet in the middle of the fabric. If upper thread is looping under the fabric, the upper tension is too loose. If the bobbin thread is appearing on the top of the fabric, the upper tension is too tight. If it is difficult to determine what is happening with tension, try using a different color thread (but ALWAYS the same type & weight) in the bobbin as what is used as upper thread.

Tension is static--it needs to be adjusted whenever a new project is begun because the needle/thread/fabric combination will affect the tension. A sewist should become comfortable with adjusting the upper tension on a piece of the scrap fabric before actually beginning to sew the project.

The needle/thread/fabric need to be compatible to get the best result. All About Needles

Sewing Machine Thread Bunching Up Here Why

http://www.chholderby.com/tips-tricks-and-help/part-4-bird-nesting

Mar 12, 2016 | Sewing Machines

1 Answer

When i run a straight stitch, the top of the fabric looks well sewn; the thread on the bottom of the fabric, however, bunches up-it looks nothing like the top stitch.


Is it really the bobbin thread that is bunching under the fabric, or is it really the top thread that is creating loops and "bird nests" under the fabric???

Rethread your upper thread. BEFORE you thread the upper thread, be sure to RAISE the presser foot. This releases the upper thread tension disks so the thread is firmly seated in the tension disk.

If it continues to be a problem, then the upper tension needs to be tightened. Adjust slightly, then test. Repeat until the upper and lower threads meet in the middle of the fabric.

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Sep 24, 2015 | Sewing Machines

1 Answer

The thread bunches under fabric when sewing on leather


WHEN YOU FIRST THREAD LEAVE THE FOOT UP AND PAY ATTENTION IF YOU ARE GETTING A SNAG WHILE YOU ARE THREADING. IF YOU ARE THEN FIND OUT WHERE THE SNAG IS AND CORRECT IT. NOW, LOWER THE UPPER FOOT PRESSURE. THIS MUST BE LOWER BECAUSE THE FABRIC IS SO MUCH MORE THICK. IF IT IS STILL A PROBLEM TAKE NOTICE IF THE BUNCH IS ON BOTTOM OR ON TOP. MORE ON TOP THEN LOWER TENSION. IF THE BUNCH IS ON BOTTOM THEN TIGHTEN THE TOP. START YOUR TENSION ON TOP WITH THREE. THE BOTTOM NEEDS TO BE CHECKED FOR PROPER TENSION. THE BOBBIN SHOULD JUST HANG FROM YOUR FINGER. IF YOU BOB YOUR FINGER IT SHOULD BEGIN TO EXTEND JUST A SMALL AMOUNT. JUST REMEMBER THE THREAD IS THICKER AND MUST BE ADJUSTED BECAUSE OF THIS.

Jan 10, 2014 | Husqvarna Husky 145

1 Answer

My bobbin stitch is loose. I have tried adjusting tension and have changed the needle.


A. To correct loose stitches, try the following: (1) Balance the thread tension. If the stitches are loose on top of the fabric, decrease the tension to the next lower number. If they are loose on the underside set the tension to the next higher number. (2) Make sure the needle/upper thread follows the threading path. (3) Check to see that the bobbin case is threaded properly. (4) Use a different size needle. For fine fabrics, use a smaller needle (size 9, 11); medium-weight fabrics require a size 14 or 16. And use a size 18 or "Denim" needle for heavy corduroy or denim.

Sep 20, 2010 | Singer Curvy 8770 Electronic Sewing...

1 Answer

The lower stitch (under the fabric) is using too much thread


Check everywhere to get lint plugs out of the way and change your needle. Make sure it's in correctly. And, make sure you're threading correctly...don't forget the take-up hook.

Apr 06, 2010 | Brother LS-2125 Mechanical Sewing Machine

1 Answer

Jamming brand new machine


the tension on the bobbin case needs to be adjusted to needle size and type of fabric the medium fabrics usually use a size 11, light fabrics need a size 9 and heavy like ( corduroy denim or upholstery fabric needs a 14 or 16 Heavy fabrics need a little less tension on the top side so it will feed properly just play with it until it looks good on a scrap of the same fabric

Dec 13, 2009 | Singer 1507

1 Answer

Thread bunches up under fabric


Your thread tension needs adjustment.

Most likely it is the lower thread tension (not the upper thread tensioner).

When sewing very thin or very heavy material - it is required to adjust the lower tension as well.

To regulate the lower thread tension - turn the small screw on the tension spring of the bobbin case with a small screwdriver.

To increase tension - turn it clockwise SLIGHTLY.


Thanks for using FixYa - a FixYa rating is appreciated for answering your FREE question.

Jun 30, 2009 | Singer 3116 Simple

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