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Forum > Sergers, Coverstitch and Blindhemmers > switching between 3 and 4 threads on my Elna 344: help ( Moderated by CarolynGM, Deepika)

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switching between 3 and 4 threads on my Elna 344: help
autumnnn
autumnnn
Advanced Beginner
Member since 8/23/12
Posts: 50
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Date: 10/21/12 6:26 PM

I want to know what I should do to serge with a 3 thread setup on my machine. I have an Elna 344. My manual doesn't talk about switching back and forth between 3 and 4 thread stitching. It just gives info for the threads in use. Do I just have to re-thread minus the extra needle used in a 4 thread setup or can I just pull the extra thread out of the 2nd needle and put it out of the way? I just learned to gather last weekend with my serger and I tried it both ways I described above and it worked but now I am trying to learn how to do a lettuce edge and I am just now having any success. Please help me!
-Autumn


beauturbo
beauturbo
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California USA
Member since 5/2/09
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In reply to autumnnn <<


Date: 10/21/12 7:06 PM

If you only want to do a 3 thread stitch, with only the one needle, you really should take that extra and now not used at all, 2nd needle out of the machine too. As it's not good to leave it there, just empty of thread at all, as it would be going up and down and trying to make empty holes in the fabric, and it might catch on something.

If you want to do a lettuce edge where it is all wavy and stretched out like that on purpose, then I think a 3 thread rolled hem for the stitch would be best. So that means you need to set up for a 3 thread "rolled" hem instead, instead of just a three thread overlock.


As the rolled hem gets formed over a smaller stitch pin. Also the just the different thread tensions on it, encourage it, it to get the fabric bent under and roll around that pin.

Also change your differential feed there, so it stretches your fabric out the very most, while roll hemming to get that ripply look. If even by making the differential feed stretch the fabric out as much as possible is not ripply enough, then you could carefully pull the fabric even more, but by holding it in front of needle and behind too while doing that. But don't pull on it in such a one sided way, that it would bend up or break a looper, so I think you do have to be a bit careful when doing that.

autumnnn
autumnnn
Advanced Beginner
Member since 8/23/12
Posts: 50
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Date: 10/23/12 12:34 PM

Thank you for your thoughtful reply. I spent all of Sunday trying to figure this out. After I posted here, I looked in my copy of The Sewing Stitch & Textile Bible by Lorna Knight which said what you said, that I should remove the needle I am not using. I am happy to report I was able to successfully make a lettuce edge hem. Thank you again!
-Autumn

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