On Fri, 01 Aug 2014 22:36:40 +0000, Jennifer <
0f77f3b6898d92a94d2...@example.com> wrote:
> My Grammy gave me her old Simplicity sewing machine and every time I go to use
> it the Bobbin keeps Jamming and the Needle breaks! Am I doing something wrong?
> Do I need to get it looked at? If so how much will that be?
It probably needs a good cleaning, proper threading and the correct seam starting
technique.
http://aces.nmsu.edu/pubs/_c/C102/welcome.html
http://www.threadsmagazine.com/item/4731/preventive-sewing-machine-maintenance/page/all
Here are some common problems beginners who don't thread their sewing machines
properly are likely to see:
http://www.picturetrail.com/sfx/album/view/22521551
Sewing machines should be threaded with the thread takeup lever and needle
at the highest position of travel, with the presser foot UP. Follow the
threading diagram in your sewing machine manual. Make sure you've got the
correct bobbin in the bobbin case (two of the most popular bobbins look
so much alike it's not funny) and it's in the correct orientation.
When you're ready to start a seam, do it like this:
1. With the top and bobbin threaded, and about 3" of "thread tail" pulled
out from the needle and bobbin case, pull the thread tails under and
behind the presser foot.
2. Place the seam under the needle.
3. Using the handwheel or the needle up/down button, drop the needle into
the fabric at the start of a seam (note: handwheels should always be turned
in the direction that causes the feed dogs to move fabric from the front of
the machine to the back).
4. Drop the presser foot.
5. Holding the thread tails behind the presser foot, take 2-3 stitches
6. Drop the thread tails and sew normally.
Not all machines require holding the thread tails, but enough do that you
might as well make it a habit. Saves many bad words and thread tangles.
If this machine hasn't been professionally serviced in the last couple of years,
it's probably time to take it in. Can't tell you what it would cost where
you are, but a typical COA (clean/oil/adjust) runs $50-100 in my part of the
world, and when you get the machine back, it should run like new.
Here's the sort of thing that happens at the shop:
https://web.archive.org/web/20060426120959/http://www.gwsms.com/ultimatetuneup.htm
The three most common causes of needles breaking that I see are:
1) Pushing or pulling the fabric under the needle. Guide the fabric, don't
haul on it. Let the feed dogs do the work of transport.
2) Sewing onto or off of a thick area, like the thick spot on the side seam
when you're hemming jeans. Use a "hump jumper" or a fold of fabric to keep
the presser foot level while you're making the transition between the two
thicknesses.
3) Sewing machine starts to jam (usually a threading and seam starting fault)
and you keep stitching till the needle bends and breaks.
Remember to match the size of the needle to the thickness of fabric being
sewn (in general, you want the smallest needle size that will let the stitch form) and make sure it's right way around in the machine and fully up in the needle
clamp. Otherwise you'll get "skipped stitches": _ _______ _ __ _ ___ _
instead of _ _ _ _ _ _ _ _
Needle photos:
http://www.picturetrail.com/sfx/album/view/17206792
If you don't have the manual, try to get a copy. It's one of your best
sewing tools.
Kay