also try lengthening your stitch length just a bit.

I have the same machine and love it. I lengthen my stitch and use tension on both sides and I don't seem to have much of a problem. I have done all sizes on it. I mainly use safety pins to hold mine together while quilting.

Ann L,
By tension on both sides of fabric... do you mean to the right and left of the needle or tension to the front and back of the needle?

what stitich do you use. I was just using the first stitch on the machine....?
thanks

I just lengthen the stitch so it isn't such a tight stitch, I want to say a 3 or 3.5 length, and tension on both sides as it is feeding through.

what stitch are you using since you have the same machine?

sorry still don't understand where you are applying tension....one hand behind and one infront of the needle i assume? thanks!

Try inverting the sandwich. The backing fused to the batting on top and the not fused at the bottom. It should reduce or eliminate puckering.

I have a 7570 and this is the top tension. Mine has 'settled' into a 1 to 1 1/2 on the top dial. I had to just play with it on different fabrics when I first got it many years ago.

Make sure your IDT is engaged and make sure that the foot you are using has a slot in the back to allow the IDT to meet the fabric. I hope I made that clear. If you need a picture of the foot to use , I can send that too. Just let me know. I know it is frustrating when you get a new machine and can't get it to behave. When you get used to the 7570, you will LOVE it!!!

yes i have the "O" foot which is standard and the idt engaged. I've had it about a month but just started machine quilting. i did the other couple pieces of fabric for this project with SID foot on a quilted block and it was fine. I didn't turn the tension down that much. I thought below 3 would be a mess. I can try down to 1.5 like someone said also. I also just read somewhere about using a Straight Stitch plate might help i did purchase one but didn't put it on.
Those of you with the 7570 which stitch are you using on your machine? is it the very first stitch or another one? if so let me know please.

I use the one that defaults when the machine is turned on. I think it is the 1.