Originally Posted by
Marti1943
What is confusing me is after you sew 9 strips(21/2 inch) together they measure 20.5 inches. Instructions read to place ruler at 22 inch mark a cut wedge. I don't have 22 inches.
This is a very nice demo for the 9 degree ruler. It may even be the pattern you are using. "smile"
https://www.bing.com/videos/search?q...10&FORM=VDQVAP
This video demonstrates using the 10 degree ruler to cut pieces of fabric. The 22 you are looking for should probably be lined up with the edge of the fabric to cut the wedges. If you cut them as the 22 at the top of your strip the first time, then put the 22 at the bottom, the next time, you will have alternating wedges of your strip colors to give the quilt a much greater variation.
https://www.bing.com/videos/search?q...10&FORM=VRDGAR
This video by Nancy Zieman is applicable to Dresden plate, but the concept is the same.
https://www.bing.com/videos/search?q...10&FORM=VDQVAP
Edited to add: Thanks for asking this question. I have been wanting to make one of those 3D expanding center quilts and have been wondering how to do it. The first video explains it perfectly.