Originally Posted by
Jan in VA
Actually, you are right. My original quilting teacher used to cal this your "personal, private measurement" or PPM. The only time it really affects you is when you are trading blocks with another sewer.
My own PPM is one click to the left of center on the needle position selectors of my 1970s and my 1990s mechanical Berninas, my preferred piecing machines. It's a bit less than 1/4 inch but I really don't care! I use the attached technique to be sure each seam I sew is accurate all the way down a long strip. With it I don't have to eyeball the edge of the pressure foot and can sew a long strip or any seam very quickly. And very accurately!
You make yours your way; I'll make mine my way!
Jan in VA
I like this. What we tend to forget is the importance and influence of good pressing and the more pieces in a block the more "thread space" it takes.