False Thread Breaks?

[HeatherTMA]

Anyone know what causes them and how to avoid them?

[HERB]

False upper or false bobbin????

[HeatherTMA]

False Upper. I've been getting an exhausting amount of false upper breaks all of a sudden, especially when sewing smaller letters. I've played with the density and used auto-density and still nothing works. Any tips?

[Sewfly]

Make sure the column width is at least 1.2mm. If it is any narrower, the machine is basically going in and out of the same hole multiple times and the machine will read it as a thread break.

Once I learned this at a digitizing seminar, I greatly reduced the number of thread breaks in my desigs. Hope this helps.

Susan

[HERB]

Your issue is more a mterial thickness/bobbin tension kind of thing rather than a density thing. Changing the density has no affect on the amount of thread being fed. One thought would be to tighten the bobbin just a bit, or drop the material thickness one number. Or go into OS/Settings/Thread Feed and increase the column feed number 3-4 which decreases the thread feed on column stitches.
On a side note, are you confusing Density/Auto Density with Acti-Feed/Auto-Actifeed?

[signman]

Here's what Rod and Sharon showed us and made a complete turnaround in sewing small letters...
first, Short Stitches- OFF, then MIN COLUMN WIDTH- 10.
Density- 4.5 or higher, NOT lower!
NO centerline underlayment, on small letters you're just putting thread and the needle through the same holes over and over.
If you are using Auto setting, not manual for feed, then you may have noticed you can run the bobbin a little 'tighter' than normal-doublecheck your bobbins.
Speed, may have to slow it down-start at 700 to test and increase slowly until breaks start, then back off.

[EEAmayaTech]

Is this limited to a certain Design? If not, then it maybe a hardware problem. Did the False Threadbreaks happen suddenly or gradually increasing over time? Could be threadbreak sensor or takeup lever cam.

[signman]

Here's another suggestion, you'll find more info in the 'archive's of past discussion. The tube where the thread goes around and back up through the holes-this can spin. Carefully, check to see if that is clean, then spin it just a little. Don't know what happens, maybe it's static or something-but everyonce inawhile turn it. Solved 90% of our false thread breaks!