Originally Posted by sewmom
has anyone ever quilted using a double needle. on the baby quilt that i'm making right now, i sewed 2 wavy lines down a sashing. unfortunately, they were not as nice as i would like. doesn't the twin needle make a zizzag on the back? (if i had tried a sample, i could answer my own question, but i was wondering if anyone had ever used this technique?
Yes, the double needle makes a zigzag on the back. I wouldn't use it for a quilting stitch. It could be used on a quilt top + batting as a decorative stitch, followed by layering the backing on and using a single needle for the actual quilting stitch. Someone else described this a few posts ago.
You have to be careful when using a double needle that your fabric doesn't tunnel. Usually you need to either heavily starch the background fabric or use a stabilizer underneath to prevent tunneling.