Question about Janome Memory Craft 9500 Computerized Sewing Machine

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Bird nest when trying to sew. Under material by bobbin - tried changing needle, bobbin. Tension - no change to the problem from Auto for regular sewing to 2 for embroidery

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I think you have something catch on the tension guides. Try to clean out anything you can see and pull a thread towards the needle. I have done this with a small knot to snare anything but be gentle. Also, rethread carefully.
Try cleaning the bobbin case too

Posted on Sep 13, 2010

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Posted on Jan 02, 2017

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When I sew I have thread bunching up underneath the fabric, I've changed needle size, thread, bobbins and cleaned out around the bobbin holder. I'm frustrated and out of ideas.


Susan--
Easy peasy, once you know the problem and how to fix it. It's called "bird nesting" or "thread nesting" or what I refer to as thread "barfs."

Install a brand new needle.
Remove all the thread from the machine.
**ALWAYS RAISE** the presser foot and rethread the top thread.
Verify the top thread path is correct.
Install and thread the bobbin case, make sure it is correct.
Set the top tension to the midway point.

Now retest your machine. Birds nests gone? You may need to tweak the top tension because the factory standard changes due to age and use.

FWIW, problems appearing under the fabric are an issue of the top thread. Thread problems appearing on top of the fabric is a bobbin issue.

What causes Bird Nests Superior Threads

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

WHY IS THREAD BUNCHING UNDERNEATH MY FABRIC

Mar 25, 2017 | Sewing Machines

1 Answer

Top stitch looks perfect but bobbin stitch lies flat.


what you describe indicates that the needle thread tension is too loose
it is not pulling the bobbin thread up and that is creating the birds nest under the material

Dec 12, 2016 | Sewing Machines

2 Answers

What am I doing wrong when the stitching on top of the material is ok and straight and the backside is knotting?


wrong bobbin tension , but amazingly its actually easier to adjust the top threads tension to compensate for it , use your tension knob to slowly adjust , try an inch , slowly adjust try an inch , and so on to get a top and bottom thread tension to match , this will need to be adjusted for each major change in fabric (aka , knits to woven )

Aug 17, 2016 | Sewing Machines

2 Answers

ChaMy pfaff 2144 will not stitch properly; pools masses of bobbin thread; Changed thread, tensions, needle etc still wont sew, please advise as I am so desperate to fix this problem


bunching of thread under material is a needle tension problem
tighten it up
proper tension is when it requires a small amount of effort to pull the thread through the needle eye

Jul 28, 2016 | PfaFF Sewing Machines

2 Answers

Bobbin thread bunches up under material


make sure that the bobbin carrier is fixed in properly
make the needle thread tension a lot tighter

Jun 23, 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

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

2 Answers

Bobbin thread bunching up on bottom side od material while sewinginto a mess, while top thread fine. HOW DO I fix this, please.


Hi, this is a lack of lower tension. Check to make sure your bobbin is seated correctly and that you have used the correct thread path. Check the tension by drawing some thread from the bobbin with your hand, if it reels off too easily, the tension hook for the bobbin is too loose, tighten it down a tiny bit with a small screw driver and try again. If the bobbin tension is normal, than the problem may be your upper tension, if it is too tight it can cause your bobbin to snarl. If a tension adjustment does not fix the problem, you may need to seek a specialist.

Oct 06, 2015 | Singer Sewing Machines

2 Answers

Bernina artista 180 bottom stitch bunching


bunching under the material is bird nesting is a result of loose needle thread tension thread the machine up to the point of threading the needle
pull on the thread and you should have a reasonable resistance to pulling the thread
adjust the tension until you get that then thread the needle
while you may be using the tension settings if there is a problem in the tension plates area , the tension will not get high enough regardless of the indicated setting
bobbin tension can be reasonably loose
correct tension is when both threads meet at the center of the materials being sewn

May 25, 2017 | Sewing Machines

2 Answers

The thread bunches up under the material when sewing. What can I do to rectify this? HOW do I set the tension for the bobbin please?


Soulds like you did not get the upper thread in the tension unit when you threaded it. Try this, thread your machine all the way to the needle but not in the needle eye. After you do this lift the presser foot up and down, you should have tension with the presser foot down and no tension when it is up. If this is not the case your machine is out if adjusment.
Hope this helps

Mar 14, 2011 | Singer 7442 Mechanical Sewing Machine

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