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Why does the thread blab up on the underside of fabric

Stitch does not move and the underside thread jest bunches up

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This is called bird nesting or thread nesting. There are multiple web sites that discuss this symptom.

Remove the upper thread. ALWAYS RAISE the presser foot and then re-thread the machine. Verify the thread path is correct. Set the upper tension to the midway point and retest your machine.

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Posted on Dec 20, 2016

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Not enough tension or the machine is incorrectly threaded. The bottom thread isn't being pulled up into the sewing.

Posted on Dec 19, 2016

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HELP! I have a brother 1034d the thread is stacking up on the little fingers on the needle plate


I have the same problem. The serger is making the chain, but it's not moving off the stitch finger! I have to pull it while im operating it (with force) and when i put fabric, it bunches up like crazy and i just broke a needle... Any clue anyone?? Here is a picture... https://goo.gl/fhqq15
img_8943-e525u3gqe2ymixf5c2uots3q-1-0.jpg

Apr 23, 2017 | Brother Sewing Machines

2 Answers

Elna expressive 900 thread breaking (although not really) and bunching up on underside of fabric ESPECIALLY when doing embroidery. Why?


try using gutermann thread and needle according to your fabric thickness and tension dial must be 3-5 and bobbin thread hold the end of the thread and bounce to see how loose the thread is cos if it releases too easy you need to turn the screw on the casing just a little see how you go

Apr 08, 2017 | Elna Sewing Machines

1 Answer

Needle stitch fine. Bobbin stitch loops.


First, try a brand new needle.

Second, consider using a better quality thread. By all means, AVOID old or bargain bin threads. Coats & Clark used to be a standard, but thread quality has improved over the past few years, so you may want to check out other brands like Aurafil, Superior, Isacord, etc. Also, cotton wrapped polyester thread releases thread lint that contributes to build-up of gunk in the machine. Some sewists have noted that they experience more sewing issues when using C&C threads. However, some machines will do better with certain thread brands than others, so some experimentation may be beneficial.

Third, check the stitch on your sample again. Generally, when thread loops appear on the underside of the fabric, it is the upper thread that is the problem. If loopy threads appear on the top of the fabric, it is the bobbin thread that is the issue. You can even use a different color in the top to help distinguish which thread is the problem.

Fourth, when threading the upper thread, Always Raise the Presser Foot during the threading process so the tension disk is released and the thread can seat properly. "Bird nesting" occurs when the thread is not seated in the tension disk.
Sewing Machine Thread Bunching Up Here Why

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

Fifth, when the upper thread appears on the underside of the fabric, the upper thread tension is too loose. If the bobbin thread appears on the top of the fabric, the tension thread is too tight (or the bobbin thread is loose). Start out with the upper tension set at the midway point and tweak it from that point. The tension is ideal when both upper and bobbin threads meet in the middle of the fabric.

Also, remember that tension is not static--a tension setting for chiffon will most likely not work on cotton or denim. Get comfortable adjusting the tension to suit the project you are sewing.

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May 24, 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.

...

Sep 24, 2015 | Sewing Machines

1 Answer

Skips stitches


I had/have the same problem...the gal at Joann's told me that it is USUALLY related to the needle being wrong for the fabric, an old needle, pulling as you sew, etc. Tweak everything possible, use a scrap fabric, keep resewing til machine behaves and then go to your real fabric. I always sew now with a scrap I test before doing something on the real piece. Also I was having bunching with my UNDERSIDE and assumed it was the bobbin thread. She told me the underside problems are from the top thread, not the bobbin thread..so she showed me how I was slightly threading wrong. I have a Singer Curvy and love it, but it is finicky when default settings are changed with stitch, width, length not matching the recommended settings. Good luck!

Oct 06, 2014 | Singer 3270 Mechanical Sewing Machine

1 Answer

What is the tension settings for normal over locking with the Elna 4de


First of all ensure that the serger is threaded correctly.

The two setting which you mention are really a 'range' for an 'average' setting.

Using 'average' fabric such as a medium weight cotton, flannel, etc.; set each of the tensions in the middle of the range and test the stitch. There may be minor adjustment required to get a perfect stitch.

Once you have stitched that first sample, here are some possible minor adjustments required:
1. Tear-drop shaped loops on the underside: Check that the thread is firmly set in the tension dial by giving the needle threads a good snug pull above the tension dials while the presser foot is down.

2. The zig-zag like thread on top should meet the ziz-zag like thread on the underside right on the fabric cut edge. If the meeting happens on top: reduce the upper looper tension slightly and increase the lower looper tension slightly ... test sew and recheck. If the meeting is on the underside: increase the upper looper tension slightly and decrease the lower looper tension slightly ... test sew and recheck.

3. If the meeting does happen along the fabric cut edge but the meeting is hanging beyond the fabric cut edge: increase the blade position (that is, move the blade to the right). If the fabric is creating a ridge or tunnel; move the blade to the left slightly.

Please let me know if this has solved your problem. Otherwise let me know what is happening with the stitch quality.

Sep 16, 2014 | Sewing Machines

1 Answer

Bobbin thread bunching on underside on every stitch setting except manual straight setting and auto tension. i have tried cleaning and oiling my machine, as well as swapping out my bobbin, thread and...


Most likely, it's because the top thread is not seated fully in the tension disk.

Install a brand new needle.
Remove the top thread from the machine.
ALWAYS RAISE the presser foot and rethread from the beginning. Verify the thread path is correct.

FWIW, problems appearing under the fabric is usually a top thread issue. Problems appearing on top of the fabric is usually a bobbin thread issue.

....

Jan 02, 2018 | Singer Sewing Machines

1 Answer

Sewing a bunch of thread from the bottom, this stops the machine from actually sewing


Yes, it does. There are a couple of reasons the bobbin thread could be bunching up on the underside of the fabric. It could simply be that the machine needs cleaning. Take the bobbin assembly out, brush all the old lint out as best you can, reoil the machine once it's all clean, and make sure there aren't any little bits of thread caught in the bobbin assembly. Rethread the machine (carefully) and change the needle. This solves the problem usually--especially if the machine was sewing along fine and the problem develops suddenly. '
The other thing to check is your tension. It could be that the top tension is too loose. But different color thread in the top and in the bobbin, stitch a few inches (be sure to held the top and bobbin thread ends behind your needle as you start to stitch) and check. WIth the pressure foot down, adjust the tension, and stitch again. Keep stitching, checking, and adjusting until you see little if any bobbin thread on the top or top thread on the bobbin.
Another thing to reminder: use the appropriate thread and needle for the fabric you're sewing.
Let me know if this works, ok?

Robbie

Jan 31, 2010 | Elna Sewing Machines

1 Answer

THREAD GET BUNCHED UP UNDERNEATH THE FABRIC, THE STICHES SEEM TO BE INCOMPLETE THE TOP LOOKS GOOD THAN I TURN IT OVER AND THE THEAD IS BUNCHED AND LONG LOOPS OF THREAD ARE LEFT. THANKS LOU


Hi Lou! This sounds like a tension problem--the tension on the top thread is too loose. Try using different color threads on the top and bobbin, then carefully rethread everything. Stitch a couple of inches and check the underside. If the top stitches look fine and the bottom ones are loose and loopy, and with the pressure foot down, tighten the tension. Move the knob or dial (whichever you have) just a little bit. Sew a couple of inches more, and recheck. Continue to sew and recheck, gradually tightening the tension, until you see little if any bobbin thread on the top or top thread on the underside of the fabric.

Let me know if this helps, ok?


Robbie

Jan 27, 2010 | Singer Sewing Machines

1 Answer

Need online manual


If you are having problems with the thread on the underside of the fabric, that is usually the upper tension. Check to make sure that it is threaded correctly. If so, make sure that the thread is inside the tension disc and that there are no pieces of thread caught in the tension. If it is threaded and there are no thread caught up in the tension assembly, adjust your tension dial to a slightly higher number. Do this until you get a good stitch.

Feb 09, 2009 | Kenmore Sewing Machines

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