Question about Simplicity American Denim SA1100 Mechanical Sewing Machine

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Thread breaking on Simplicity Denim Star

On my simplicity denim star, the thread keeps breaking near the eye of hte needle after only a couple of stitches. i have re-threaded the top and the bobbin, and adjusted tension. just sewing on plain cotton quilting material.

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Hi, when your thread breaks or frays right before in goes through the eye of the needle:

  1. Change your needle - after awhile, the eye can wear down and cause your thread to break or fray, eventhough it looks like the thread isn't even going through the needle. When you change your needle, make sure to install a needle that is compatible with the thread you are using (see below).
  2. If your thread still frays or breaks, make sure you've threaded your machine correctly. Most machines have a hook or bar right above the needle that your thread need to pass thru before you put the thread thru the eye of your needle. Sometimes that spot above the needle is really hard to get to, and sometimes the thread slips out. Always a good idea to double check. If you are still having problems, the needle you are using is probably the wrong size.
There are lots of needles on the market, and lots of threads. You need to make sure your needle is compatible with the thread you use for each project.

The most common needles are size 80 and 90 universal needles, which are fine for most sewing projects. But if you are using a specialty thread, you need to use a needle that is designed to work with that particular thread. For example, top stitching needles have a larger eye than a universal needle, because top stitching thread is thicker than sewing thread. The same is true for metallic thread - needles made for metallic thread an eye designed to allow the thread to pass thru without fraying. Further, if you using fine thread, you need a small needle.

FYI - unfortunately, thread sizes do not correspond directly with needle sizes. Small needle numbers indicate a needle with a small eye. But the smaller the thread size, the larger the thread. For example, size 50 thread is very fine and would usually be used with a size 70 needle. Size 30 thread is fairly thick and would probably be used with a size 90 top stitch needle.

Hope this helps, and remember, you should always change your needle after about 10 hours of sewing, no matter what size needle you are using. If you have more questions, please post again. Thanks, Ginny

Posted on Jan 31, 2009

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Posted on Jan 02, 2017

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2 Answers

My machine sews about 20 30 stitches and then the thread breaks at the needle. when I check the thread its showing me a single thread with the other thread as it separated


possible reasons include
old thread
thread too thick for the needle eye
needle not correctly installed where the thread runs down the small slot to the eye
needle thread tension too tight
needle /hook timing off a bit

Jan 08, 2017 | Sewing Machines

2 Answers

I am quilting with a new needle with Aurifil thread. Every bobbin change I clean the machine. Why does the top thread keep breaking?


A couple of other things to check--

Be sure to use a a good brand needle (no bargain bin varieties)--most quilters prefer quilting, embroidery, or top-stitch needles. Check that the needle eye is compatible with the thread weight. If the thread is shredding where it goes through the eye, the thread is most likely too heavy for the needle.

Confirm the thread path is correct. When threading, be sure to ALWAYS RAISE THE PRESSER FOOT during the process. This releases the tension disks so the thread will seat properly.

Make sure the thread is not catching on a nick or burr somewhere along the path. Thread spools with the little nick in the side for securing the thread during storage are famous for catching and breaking the thread during stitching.

Check that the tension is not too tight.

Also perform a test for nicks or burrs in the bobbin area. Wrap your index finger with fine fabric, ie chiffon, old hosiery, etc. and run your finger around to see if there are any rough spots on the needle plate, hook, etc.

Aurafil thread is used by a lot of quilters, however, some machines just do better with different brands of thread. If it continues to be a problem, you might test another brand.

https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=2&cad=rja&uact=8&ved=0ahUKEwj2prvlr-7MAhVmVWMKHS0zBuAQFggjMAE&url=http%3A%2F%2Fwww.schmetzneedles.com%2Flearning%2Fpdf%2Fschmetz-needle-chart.pdf&usg=AFQjCNHTR52AmqwzvyCjbXmD5Ch52Va5_Q


All About Needles

Sewing Machine Problem 1 Thread Breakage

Sewing Machine Thread Keeps Breaking

Why is my thread breaking

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May 22, 2016 | Sewing Machines

1 Answer

Iam sewing seats. but the threed stared braking at the needle & it want saw.


Most likely, it has to do with incompatibility of the needle, thread, and fabric. The force of the needle penetrating the fabric multiple times is actually causing the thread to (wear &) fray and eventually break. There are needles with larger grooves that tend to protect the thread during stitching. Some may recommend a Top Stitch Needle (Home Machine Needles Superior Threads Why Topstitch? The Topstitch needle is the most common needle type used and recommended by professionals and educators. We recommend the Topstitch for piecing, quilting, embroidery, appliqu?, and construction. These needles are available in four sizes to accommodate all thread types, including metallic threads. The Topstitch needle has a larger eye and deeper groove. It is often referred as the MAGIC NEEDLE. It really does make a difference in your sewing experience.)
Why Use Topstitching Needle

Also, if the thread is a tight fit through the needle eye, it will also tear the thread. Make sure that the thread will slip easily through the eye. Go to a larger needle, instead of 90, try a 100.

Be sure to use a brand-new needle.

All About Needles

The Parts of Sewing Machine Needle

You may also consider changing the type of thread you are using. Go with a stronger thread, ie polyester, rather than cotton. Cotton will shred and break easier.

You will probably need to re-adjust the thread tension. If it is too tight, it will also break the thread. If you are using a heavier weight of thread, you will need to adjust both the upper and bobbin tension to accommodate the heavier thread.
Bobbin Tension How and Why Tension is Adjusted

If you sewing fabric that is sticky, ie vinyl, oilcloth, you should try to use a roller presser foot, a teflon presser foot, or a walking foot to help the fabric move with the feed dogs.

Sewing Heavy Fabric with NON Heavy Duty Sewing Machine SEWING IN GENERAL

Tips

Sewing through many thick layers of fabric Sactin

http://www.kollabora.com/q-a/sewing-denim-and-thick-fabric

14 Fantastic Sewing Tricks and Tips Making the World Cuter

How to Sew Upholstery DoItYourself com

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Apr 22, 2016 | Sewing Machines

2 Answers

Won't stay threaded


Nearly always incorrect threading or tensioning.

Sep 29, 2015 | Sewing Machines

1 Answer

How do I do a simple timing on my SW210? The mechs are catching in the bobbin area and is breaking, more like cutting, my upper thread.


sounds like needle /hook timing is out
with the needle all the way down and is just about to come up the hook of the bobbin case should be just about at the eye of the needle and just above the eye of the needle
the needle should be in so that the groove in the needle is facing away from the hook and the small cut away is at the hook
timing is affected by loosening the screw on the needle shaft crank arm and adjusting the shaft up or down to position the needle correctly in relation to the hook
the condition of the thread is important as old thread will laminate and the hook will split the thread

May 23, 2015 | Simplicity Denim Star SW210

1 Answer

Not picking up bobbin thread


Change the needle first failing that you will have to have the machine retimed

Oct 31, 2013 | Simplicity Denim Star SW210

1 Answer

Free owers manual


your question is put under the sewing machine name of
simplicity denim star sw210, so that is the links I'm going to supply
for a manual,, but the manual is not free, I don't know where you can
get one for free
http://www.sewingpartsonline.com/instruction-manual-simplicity-sw210.aspx

http://www.sewingpartsonline.com/instruction-manual-simplicity-denim-star-sw210-download.aspx

Aug 06, 2012 | Simplicity Denim Star SW210

1 Answer

I have been sewing denim, and the top thread keeps breaking at the needle. What adjustments do I need to make. It also bunches from the bobbin.


Are you trying to use a heavy thread like buttonhole twist through the needle like the yellow thread on store bought jeans? Most domestic machines will not cope with this heavy thread and it will be too large for the eye of the needle too.

If you are using regular weight 50 polyester thread and its breaking then it could be because the top tension is too tight. Just loosen off 1/2 a number on top tension dial and see if this helps.

If possible, buy a pack of jeans needles size 100 too, these are blue coated with teflon I think, and makes it easier to slip through denim which is a very dense fabric.

Hemming denim jeans is probably one of the toughest jobs for a domestic sewing machine so if you are trying to do this, its a good idea to take it slowly and use a "humpjumper" which helps to maneouvre over the thick side seams.

However, even with all the above, many machines won't sew more than one layer of heavy dense weave denim.

Jul 20, 2011 | New Home HF-106

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