Originally Posted by
Annaquilts
Aurifil 50 WT Sometimes when the thread breaks it might be because the needle opening is too small. I quilt on my Janome 6500 and it is a thread snob. It can not handle much else. I also use a top stitch needle 90/14 schmetz. I also use a vintage Bernina 830 recorder and can use thick thread on it as long as I use the top stich needle.
I noticed this on my MC6500 as well. I have tried Aurifil and it seemed to handle well and the Sulky was bad. I am going to try Bottom Line and Mettler soon. I just purchased both of them recently. I did switch to a 90/14 needle the other day because I was having trouble with my thread "bunching up" randomly on the fabric.