Originally Posted by
nativetexan
I've had a clear ruler like that for years. it has slits that you mark the center line in. the ends of the ruler are pointed to fit in the corners of the square. she didn' t " invent" anything.
I also have this clear blue ruler with the slit down the middle but if you use that ruler then you need to cut your blocks 7/8" bigger than the finished block. Cindy's ruler adds in the extra 1/8" for cutting blocks 1" bigger. also if you cut block 1" bigger and stitch 1/4 " on either side of the center diaginal line then you still have to square block to be finished size you want.