[olsen]

Hi all,
We are not satisfied with the embroidery-result on our SWF machines (1202 & 1204).
All settings seem to be correct according to the manual.
On fill surface it is not even and tight, and when doing satin-stitches it may suddenly appear a loop.
Also trouble with that thread runs out of needle on the first stitches after cutting, and a thread ends on first stitches after cutting.
I have worked as a industrial sewingmachine technician for 25 years, but this problem I have not solved. Agents technician has tried, but "talked" the problem away. Have any of you folks any suggestions what to do we are thankful.
No more SWF machines in our house.

[dgeorge]

look at www.embroiderytrainingvideos.com
are some article about loops and many others.
SWF is an good machine

[onet]

Hey Olsen, lots of techs think this is a tension fault when it's not really, its a Path of least resistance problem,put a hoop in the machine with fabric in it, then check the gap between the fabric and the needle plate, there should be barely daylight between them, if its touching then the problem occurs due to it been easier to pull thread from the cone than to pull the thread in from the bottom ,this causes excess thread in the system, which ends up lying on top of the garment in the form of loops.bend the hoop arms up to increase the gap.

[minimalist]

The looping and thread pulling out of the needle sound like a take up spring is out of adjustment. Depending on the tension the take up spring should have some tension to it but not too little or too much.

Not sewing straight is a sign that the needle is not oriented correctly. Check to make sure the needle eye is oriented by what the manual says and that the scurf of the needle is oriented right as well.

It is possible that the thread cutter is dull as well. You might want to check the cutter to make sure it is sharp. I have a nice set of needle files that I use to dress my thread cutters.

[minimalist]

Originally Posted by onet

Hey Olsen, lots of techs think this is a tension fault when it's not really, its a Path of least resistance problem,put a hoop in the machine with fabric in it, then check the gap between the fabric and the needle plate, there should be barely daylight between them, if its touching then the problem occurs due to it been easier to pull thread from the cone than to pull the thread in from the bottom ,this causes excess thread in the system, which ends up lying on top of the garment in the form of loops.bend the hoop arms up to increase the gap.

While I see your point how do you account for heavy items that pull the hoops down? Barudan even suggests that you use clamps if the item is light to put weight down on the hoop so it doesn't flag.

I worked on industrial machines for 20 years before I got into embroidery. Some of this was on juki tsc441 that I modded to stitch 1" thick leather. I've never seen a problem with gap on the lower end. It was always the timing or the plate adjustment that caused the problem. Since the plates aren't adjustable on embroidery machines I don't see how the gap would be affected. The machines simply go up and down with no compound or unison feed. The take up spring pull the final stitch up and that is where I have seen issues because it is out of adjustment on embroidery type machines.

[onet]

Hi Minimalist, Its a solution to the problem a lot of the time, tried and tested on tons of machines with the same result and when clients have tried all other options, eg check springs, tensions,damaged needles,needle plates, takeup timing,dry hooks, then this is almost always the culprit..flagging is a very different issue..