Re: Serger issues - and flat lock seams


No you cannot do a Flatlock with 4 threads. As Cheryl concluded, the 2 needle threads would keep the fabric from opening up and laying down flat.
On a machine that we "trick" into doing a Flatlock we have to use the left needle, loosen the tensions tremendously, lower the knife, use the widest stitch possible, and let the stitches fall off the edge of the fabric to make it happen.
It does take practice and adjusting for each fabric type.

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