I have made a couple of log cabin quilts. I wish I had known to square up after each round. I didn't. All the 12" blocks varied by about 1/4". Having sewn clothing for way too long, I decided to just sew them together. I made sure I didn't put several small or large ones close together...might have gotten a cupping effect....and just worked in the extra fabric. So, in effect, every block ended up eased in to be the smaller. I do my own quilting and had no problems. I do use a very open stitch pantograph when I have block issues. It's a lot more forgiving. Next time, I will use Jan's method.
Edited to add: I do match the corners of the blocks when sewing and this helps to keep the whole quilt from going askew. So, in the long run, I did square it up by easing in all the extra fabric. Not the preferred method, but it worked.
Last edited by Barb in Louisiana; 04-05-2016 at 05:52 AM.