When threading the top thread, be sure to ALWAYS RAISE the presser foot. This will usually stop those ugly thread messes.
Hi Virginia.
you have not said what make you have.
but this is all i could find out.
Make sure your bobbin is threaded properly along with the top thread. It would help to know which machine you have. Mine has only one way to put the bobbin in so it will work okay, but I have had the thread miss the take up lever and it acted the same way (top thread). Keep trying.
Is it bunching as you first start sewing a seam? Try hold the bobbin thread and the top thread lightly when you first start your seam.
If you look at how the stitch is made, you'll see that the bobbin and top thread are interconnected, without a bobbin thread, you don't have a stitch. Check out the link below to see how a machine makes the stitch. It's pretty cool.
Are you bringing the bobbin thread to the surface before trying to sew? To do this, manually turn the wheel on the end of the machine so that the needle drops down into the bobbin race, while holding onto the tail of top thread. Bring the needle back up so that it's as high as it will go. Now pull on the tail of the top thread and it should bring up a loop of the bobbin thread. Pull up the loop so that the tail of the bobbin thread is up. As Marion said, you need to hold onto these tails when you start your seam, or the bobbin thread will get pulled down into the bobbin again and cause the snarling that you are having.
Annie
Here is a link that might be useful: Sewing machine stitch
When I have the thread bunching underneath, it is usually the upper tension that needs tweaking. Also, be sure that your needle is the right size and nice and sharp. A dull needle can really gum up the works.
When mine has done that it usually has lint under the bobbin case. Have you cleaned under and around the bobbin?
Make sure your bobbin is feeding off in the right direction.
I have just recently learned this. When you are threading your machine, make sure the needle and the presser foot are both in the up position. I am betting that would fix your problem.
I use to have this problem often. [sorry for the simplicity of this answer but it works for me] the needle goes up and down, when it starts it downward motion stop. this should be the position of the needle when you start to sew. hope this helps
or this link might help you out some more.
Thread keeps bunching up under needle plate Google Search
SOURCE: bobbin thread bunches up creating a tangled mess under the plate
This could either be due to the bobbin being wound too loosely, or the tension on the top thread is too loose. This just happened to me the other day, and I thought it was the bobbin thread, but then I put another bobbin in with a different color than the top thread (this is a huge help in diagnosing thread issues), and I was surprised to find that it was actually the top thread that was a big loopy mess on the underside of the fabric. I fixed it by tightening the tension on the top thread (quite a bit), and everything was fine.
SOURCE: my needle thread keeps bunching and llooping on
If you getting loops on the bottom of your material, you need to
re-thread the top of your machine. I say this because it is very rare
when you will have to adjust the bobbin tension. But if you must,
looking straight down at the bobbin as a clock- at 6:00 is the bobbin
tension adjustment- lefty lucy, righty tighty. Hope this helps.
Make sure the needle is inserted in the machine properly- a good rule
of thumb is the flat side of the needle should go to the opposite side
of the last thread guide. Also make sure the machine is threaded
correct
There is no standard tension for any machine to be set at. They start
at four when they are brand new, however, after years and years the
springs become compressed. You could start at four and then play around
with it from there. If you are getting loops underneath the material,
you are threading the machine incorrectly.
SOURCE: the top thread gets bunched up in the bobbin and
make sure you have threaded it correctly, always thread with the presser foot lever down, when the foot is up there is no pressure on the tension unit. wait for the click from the tension unit as you put the thread through it. Also make sure you have taken the thread up to the tension take up lever (the lever that goes up and down as th machine runs)
SOURCE: 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
SOURCE: the thread bunches up under the material when i
first start with the needle & see if it's bent-roll the needle on a flat surface & see if it roll correctly
when a needle is blunt it makes a popping sound when it goes thru the fabric
check the bobbin to see if it's warped-I have had some that were
check to see if there is lint or loose thread in the bobbin case area
rethread the machine to make sure the upper thread is not catching on anything
sometimes the thread can come off the thread take up lever
& sometimes it can get caught on the spool pin & also on the notch that's on the thread spool it's self---I've had this happen before
if you sew alot-good maintenance practice is to clean the bobbin case area at least once a week-if you don't sew alot-once a month & also under the needle plate
when cleaning under the needle plate-make sure you do not damage the top of the screws when you remove them to clean under the needle plate & because if the top of screws get damaged they can pull the fabric when the fabric goes over them
check also to make sure your top tension is correct
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