I've run two threads through; never a problem with the tensioner or anything else. Just treat the two threads as if they were one when threading the machine.

:thumbup: Thank you! I see what's in store for my afternoon :)

Oh, I should mention that you need to loosen the upper tension. It's as if you are using a thicker thread!

I used this method for machine applique with black thread, to make the stitches look heavier (as if done by hand with embroidery thread). However, you can get the same effect just by using a thicker thread on top.

Can't wait to try this with the blanket stitch for applique.

It is fun to use two different colored threads too :D:D:D

I would be afraid that a double eyed needle wouldn't be as strong as a single eyed. This could be problematic in the quilting process more so than on single layers of fabric.
I would however like more info on it as I am very curious about them now :D:D:D

I've done it but never as the quilting... the back is messy in my opinion. it is all zig zag and not always pretty.

Never thought of threading the machine with two threads. Just learned something new.

Just to clarify:

The zigzag on the back is with a double needle (2 needles on one shaft). I think the OP was talking about a single needle with 2 eyes (which I have never seen; does this make the zigzag on the back too?).

What I was describing was simply treating 2 threads as one in a single eye (regular) needle. This makes just a regular stitch (no zigzag on back) but with a heavier layer of thread on top.

The only problem I see with the double holed needle is will the hook assembly be able to grab the second thread? On a double needle it will because the threads are at the same depth as it normally would be if using a regular needle.

Billy

It DOES look interesting... although I wish they had used solid fabrics for the example, with contrasting thread. I'm having a hard time seeing exactly what the effect ends up being.