Question about Brother XL3750 Mechanical Sewing Machine

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Tension problem? apparently I have been unable to get the tension set correctly as the thread from the bobbin is bunching up beneath the fabric I'm trying to sew. Help! I'm about ready to return this machine!

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Make sure the machine is threaded correctly.
Make sure your tension is set on 5.
Check and make sure there is no fluff or cotton stuck in your upper tension unit(Between the tension plates

Posted on Jun 28, 2009

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Posted on Jan 02, 2017

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I checked my thread and bobbin watch the video and my machine keep bunches the bottom stitch


Is it really the bobbin thread that is bunching? Generally, thread messes under the fabric are the fault of the top thread, and thread messes on top of the fabric are a bobbin problem.

Top thread bunching under the fabric is called "thread nesting" or "bird nesting" but I prefer to call it thread "barfs." Most often, it occurs because the top thread has not been seated completely in the tension disk.

Install a brand new needle.
Remove the top thread from the machine.
RAISE the presser foot and rethread the top thread.
(Verify the thread path is correct.)
Set the top tension disk at the midway point.

Retest your machine. Tweak the top tension if required.

Mar 27, 2017 | Sewing Machines

1 Answer

Bobbin issues the bobbin thread is bunching up


Check whether it is bobbin thread or the top thread accumulating under the fabric. Generally, if thread problems exist "under" the fabric, it is a top thread issue. If the problems exist "above" the fabric, it is a bobbin issue.

Sounds like a thread nesting (bird nesting) problem where the top thread is globbing under the fabric. Usually, this is caused by misthreading (confirm the thread path), the thread not seated in the tension disk (ALWAYS RAISE the presser foot when threading!), or very loose top thread tension.

Remove the thread. Raise the presser foot and rethread from the beginning. Check that the thread path is correct. Set the upper tension at the midway point between high & low numbers (this is the beginning point for tension and will most likely need to be tweaked for your particular machine).

Sewing Machine Thread Bunching Up Here Why

What causes Bird Nests Superior Threads

Birds nest under the fabric big loops of thread top side looks good...

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Dec 11, 2016 | Sewing Machines

2 Answers

Why is sewing machine thread gathering under fabric?


adjust the tension to a appropriate setting,
See the video here.
Sewing Help Sewing Machine Problem Thread Bunching Under Fabric
The knob and its location can differ based on the model of your sewing machine.

Oct 29, 2016 | Sewing Machines

1 Answer

The tension on my machine is off.I don't know which thread to adjust.bobbin or top thread. on fabric top stitch seems ok,bottom stitch bunches up and is loose.How do I readjust the tensions?


If the thread problem appears under the fabric, it is a top thread issue.

If the thread problem appears on the top of the fabric, the bobbin thread is the issue.

Perhaps the upper thread is not seated completely in the tension disk. Remove the upper thread from the machine, ALWAYS RAISE the presser foot, then rethread from the beginning. Make sure the thread path is correct. Test your stitch.

If the thread is still looping under the fabric, the upper tension is too loose. Set the upper tension to the midway point. Test and adjust the tension until it is where you want it. Preferred tension is when both threads meet in the middle of the fabric.

sewing machine tension Google Search


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Oct 29, 2016 | Sewing Machines

2 Answers

The bobbin thread when sewing has little loops


You do not have the tension on your machine set correctly. That is leaving the bobbin thread too loose, hence the loops you are seeing. What kind of machine do you have? I can tell you where the tension is located. Also, tell me what kind of fabric you are trying to sew. FIRST JUST SET IT BACK TO THE FACTORY DEFAULT. When you are moving the machine it is easy to accidentally hit the tension and change it. Here is a picture of what a tension knob looks like. Good luck.
26174434-sfou1xcuml3s3ihcafmt3gce-3-0.jpg

Apr 24, 2016 | Sewing Machines

2 Answers

Why is the bobbin thread bunching up?


if your saying that your bobbin thread is balling up under the platen plate , this is a sure sign that your top thread tension is not correct and there isn't enough tension to pull the bobbin thread up from below

Mar 24, 2016 | Sewing Machines

1 Answer

I need elp with tension on singer cg550


You didn't explain the symptoms. Is the thread bunching, looping, knotting under the fabric? Is the bobbin thread rising to the top of the fabric?

If it is bunching under the fabric, it is probably what is called thread nesting or bird nesting. There are several fixes, sometimes more than one fix is required to resolve the issue.

Be sure to clean under the needle plate, around the bobbin, and the feed dogs. If the machine has instructions for oiling, follow the directions using a fresh, good quality sewing machine oil and apply only 1-2 drops each spot.

Install a brand new needle. Make sure you are using a needle compatible with the thread and fabric being used. All About Needles
Best practice is to use the same thread in both the upper and bobbin. Also, avoid old or bargain bin thread. Spend an extra couple of dollars to reduce frustration and increase success with your machine. If you wish, you may use two different colors of thread to test so you can easily determine what is happening with the tension.

Remove the thread from the machine. RAISE the presser foot and rethread from the beginning--the thread needs to be seated firmly in the tension disk. Verify that the correct thread path is followed (consult the owner's manual).

Set the upper tension to the midway point between high & low numbers (this is the factory standard and is a good place to start, but every machine is different and may need adjustment).

Confirm that the bobbin is installed in the bobbin case (turning the correct direction) and that the bobbin case is threaded properly.

Before beginning to stitch, hand rotate the handwheel one rotation and pull the bobbin thread to the top of the fabric. Then, gently hold the thread tails in the left hand and slowly begin to stitch.

Test.

If thread is bunching, looping under the fabric, the upper tension is too loose. Tighten it and retest. On most machines, the lower the tension number, the looser the tension.

If the bobbin thread is rising to the top of the fabric, the upper tension is too tight. Loosen the upper tension and retest.

Keep adjusting and testing until it is where you want it. Generally, tension is correct when both threads (upper & bobbin) meet in the middle of the fabric. FWIW, tension is static and should be tested and readjusted every time a new project is begun. The needle, thread, and fabric will affect the tension, so it is important to get comfortable adjusting the tension.

Also found the following reviews. Appears that some users have had tension issues with their CG550.

Amazon com Customer Reviews Singer CG 550 10 Stitch Commercial Grade...

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Mar 17, 2016 | Singer CG550 Mechanical Sewing Machine

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

I have singer 4423.The needle thread in bunching up in the bobbin case and not sewing! When it didn't pick up bobbin thread I loosened bobbin tension which fixed that problem.


Sounds like bird nesting.

Install a brand new needle.

Remove the upper thread completely. RAISE the presser foot and rethread from the beginning. Make sure it is threaded correctly according to the manual.

Set the upper tension to the midway point between high & low numbers. Retest on a scrap of fabric.

P.S.--once you get the upper tension correct, you may find you will need to readjust the bobbin tension.

Also make sure that your needle, thread, and fabric are compatible.

All About Needles

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Feb 15, 2016 | Singer Sewing Machines

1 Answer

Regular sewing - I cannot get the thread tension correct. The bobbin seems too lose. How do I adjust? I've tried using the adjust key but I still get loose thread and puckered fabric.


Be sure to RAISE the presser foot BEFORE threading the upper thread. Set the upper tension to the mid-point which is generally the factory setting. Test. If thread is looping or bunching under the fabric, the upper tension needs to be tightened. If there is a problem above the fabric, try loosening the upper tension.

NOTE--sometimes the stitching problem is a result of the type of fabric being sewn. Most machines have a presser foot pressure setting that can be tightened or loosened to accommodate the fabric.

The tension is correct when the two threads meet in the middle of your fabric.

Sep 26, 2015 | Sewing Machines

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