Originally Posted by
Boston1954
My sister gave me a book with many blocks and they can all be made in different sizes, including 12 1/2.
My problem is that mine never seem to turn out that size. They are usually 12 1/4.
If you can move your needle position on your machine, try moving it right a position or two for more accurate blocks. I use a 1/4 inch foot and this seems to solve the same problem for me when I remember to do it. This is especially important for block exchanges so the blocks are uniform in size.