[amayausers] Re: bobbin thread sliding to the left.
- From: "Ed Orantes" <e3m@xxxxxxx>
- To: <amayausers@xxxxxxxxxxxxx>
- Date: Tue, 13 Dec 2005 11:08:13 -0600
Say Veena,
What type of bobbin are you using? Do you happen to have any other
brand or type of bobbins available to try?
Ed
-----Original Message-----
From: amayausers-bounce@xxxxxxxxxxxxx
[mailto:amayausers-bounce@xxxxxxxxxxxxx]On Behalf Of Iris Embroidery
Sent: Sunday, December 11, 2005 6:05 PM
To: amayausers@xxxxxxxxxxxxx
Subject: [amayausers] Re: bobbin thread sliding to the left.
Hello All,
Here are the results of my test regarding the bobbin thread one sided
and hence causing dandruff on the top.
Test 1:
Started off with a new bobbin case, bobbin spool(NEB plastic sided
white), woven shirt, 1 cutaway sewn on royal colored cloth. No difference.
I was able to see the dandruff consistently on the top. This was lettering
of 0.5" letter ht. 120% column width, monotype corsiva, 100% column width.
Tension of the bobbin was normal with the drop .
Test 2:
I then copied a part of the digitized design (sewn before without
problems). Same results with the bobbin thread showing on the top. Tension
normal.
Test 3:
I ran the same digitized design with a tighter bobbin. It caused a
thread break and I increased the MT from 3 to 4. Sew without thread breaks
for the rest. Not as much dandruff, but the bobbin thread was one sided.
I really do not care how wide the bobbin shows on the bottom, but do
care when it shows on the top consistently even if it is a few places. I
can look at it and say that something is not right. I know for sure that my
machine needs a checkup to fix this problem.
Thanks for all your help.
Veena
Iris Embroidery
www.IrisEmbroidery.com
(510)-226-6171
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From: amayausers-bounce@xxxxxxxxxxxxx
[mailto:amayausers-bounce@xxxxxxxxxxxxx] On Behalf Of Ed Orantes
Sent: Friday, December 09, 2005 8:35 AM
To: amayausers@xxxxxxxxxxxxx
Subject: [amayausers] Re: bobbin thread sliding to the left.
Iris,
True, your bobbin column, however thick or thin should be centered
down the column on the backside of the fabric. If the bobbin column is
shifted to one side of the column, something may not be right. Without
getting into something complicated like machine timing, let consider
something simple like your bobbin case. I have seen bobbin cases that were
bent and causing the bobbin spool to rub as it rotated inside of the bobbin
case. I've also seen where one specific bobbin spool was not shaped
correctly and had a "high spot" which would rub on the inside of the bobbin
case inconsistently. I have met a good number of folks that did not truly
understand the benefits of "Consistent Bobbin Tension" and the causes of
inconsistent tension to look for.
When sewing smaller column widths, as opposed to larger widths, your
tolerances are much tighter giving a greater opportunity for bobbin to show
on the surface. One quick way to check if this is the problem is to change
to a new bobbin case with a new bobbin installed set with the proper
tension. If a new bobbin case solves your problem we could then go into
trouble shooting your original case to see what needs correcting.
As for the 30,30,30 concept,... that is preferred or "balanced" as
some say. Realistically, you could have a wide bobbin or a narrow bobbin as
long as the front side of the embroidery looks good, is not too tight and
not too loose. I use the analogy of driving a car down the highway. You
are supposed to drive down the center of the lane. However you could drive
to the left side of the lane or the right side of the lane and even all over
the lane. Just as long as you don't go off the lane, you can still make it
to the grocery store as intended. Quite possibly a little sick from the
swerving and with a bunch of reckless driving tickets. My point is that you
can try to get your bobbin perfectly centered every time but it's okay if
your bobbin width varies a little. Of course if your bobbin width is too
wide, then you will see bobbin showing itself on the front side of the
garment and that is unacceptable.
Try a new/clean bobbin case and let us know how it goes.
Ed
-----Original Message-----
From: amayausers-bounce@xxxxxxxxxxxxx
[mailto:amayausers-bounce@xxxxxxxxxxxxx]On Behalf Of Iris Embroidery
Sent: Thursday, December 08, 2005 5:48 PM
To: amayausers@xxxxxxxxxxxxx
Subject: [amayausers] Re: bobbin thread sliding to the left.
Yeah!. My mistake with the nos. It is 30,30,30. But the columns that I
am sewing are 7pt, 9 pt , 18 pt being the highest in this one. It
consistently seems to slide to one side, causing bobbin thread to show up on
the front. I am ok with tightening the bobbin thread a little, but
tightening it so tight that it does not drop is completely against what I
have learnt and applied so far. MT being 7 for a easy care shirt, it
frightens me since I worry it will cause holes or so in the garment.
Best Regards,
Veena Viswanath
Iris Embroidery
www.IrisEmbroidery.com
(510)-226-6171
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From: amayausers-bounce@xxxxxxxxxxxxx
[mailto:amayausers-bounce@xxxxxxxxxxxxx] On Behalf Of Mike Wargo
Sent: Thursday, December 08, 2005 2:46 PM
To: amayausers@xxxxxxxxxxxxx
Subject: [amayausers] Re: bobbin thread sliding to the left.
For as long as I have been doing embroidery it has been 1/3,
1/3, 1/3. For narrow satin stitches (columns of 3mm or less) you may want to
run a little tighter bobbin tension, showing less than 1/3 on the back.
Mike Wargo
irisembroidery@xxxxxxxxxxxxx wrote:
Hello All,
I wanted to check with you to see if anyone has the same problem as
me.
When I do small lettering, my bobbin thread seems to slide off to
the left. (In class we learnt, it should be 30,60,30 with the bobbin thread
in the middle.) This some times causes the bobbin thread to show up on the
front of the design causing dandruff. The tech checked it and said
everything looks fine with regards to the bobbin positioning and so on.
But every time I do small lettering, I see the dandruff. I was sewing out
the easy care shirt maroon color and the white thread showed up so clearly.
The tech suggested that I tighten the bobbin completely and increase the
material thickness to counter that and it would solve the problem. (For a
easy care shirt, the MT was 7). To me, this was not a solution, but a work
around.
Do any of you have this problem? How did you solve it or do you
just live with it.
I would be interested to hear what you all have to say.
Best Regards,
Veena Viswanath
IrisEmbroidery
www.IrisEmbroidery.com
(510)-226-6171
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