When sewing long narrow strips together try sewing each one in opposite direction - that is starting second seam at the end of first seam.
This helps in keeping everything straight and square.
Jane

that is the second time I read about sewing long strips in the opposite direcetion I will have to try that thands

I agree with Moonpi. Use a walking foot to sew your strips together.

I have made several bargellos. I sew with a 2.5 stitch length and I sew from the top to the bottom, then the next strip is sewn from the bottom to the top and so onl The rows come out nice and straight. Good Luck!

I just found this tip in a new quilt magazine today....
sew the first 2 one way, the next the opposite way...
as previously posted
Thanks
Kirsten

I know this is an older thread...But, this may help someone out there... I am about to do a wall hanging with multiple stip piecing, so I've been studying up lol

1)As a few have said, Sew your strips together from opposite ends/or every few in opposite directions..exmple- sew one from the top down, the next from the bottom up
2)Also, until you have it down..Try sewing no more than 16 or so strips together( or less)...Even if you have to sew mulitiple sets...
3)And as always, Press your fabrics in all phases with meticulous care so as not to stretch you material..
4) Make sure your stitches are closer together so your strips don't unravel as a few have mentioned.

hmmmm, that's all I can think of as of right now- will add any more hints when I reference my books...

I would definitely use a walking foot. Try alternating sewing your strips from left to right and then right to left.

Also, alternate which end you start sewing on.
If you always start at the same end, your strips will bow up.
.

Two strips together with small stitch (2.0)

Start third strip at the other end. One down, one up...etc.

That way they don't warp.