I have an Easy Angle Ruler that is great for cutting half square triangles. Love it!! I do NOT have a Creative Grid ruler. The pattern I am using calls for using a Creative Grid ruler or "similar ruler". I learned a hard lesson while beginning a new quilt. The Creative Grid Multi-Size 45/90 ruler markings and the Easy Angle Ruler markings are NOT the same. They are both used to cut half square triangles but the markings are totally different!!!!
With the Creative Grid ruler you line up the ruler on the 2-1/2" strip using the number for what the FINISHED block size should be. In other words on a 2-1/2" strip, the ruler is placed on the bottom edge of a 2-1/2" strip but on the 2" line. Now did that make your head hurt? Mine did!! The picture in the pattern shows a 2-1/2" strip with the 2" line of the Creative Grid ruler on the bottom of the strip so I cut my triangles with my Easy Angle Ruler on the 2" line. WRONG!!! My triangle blocks were too small. With the Easy Angle the ruler is placed on the 2-1/2 strip with the 2-1/2" inch line on the bottom of the strip for a finished 2" block. I ruined two jelly roll strips figuring out this difference. To me at least, this was totally confusing. The term finished is what I did not understand. Does finished mean when you sew two triangles together or did it mean after all the other blocks have been sewn around the two triangles? Obviously these designers consider the finished block to be after all the pieces have been sewn around the triangle block. The pattern I am using is Star Sampler Quilt out of the "Jelly Roll Sampler Quilts" book by Pam and Nicky Lintott.
I admit that quilt "math" is not my strength, heck I'm a wimp in this area. It took me hours to figure out that the rulers were the problem and that my interpretation of "finished" and the authors interpretation were worlds apart. I hope this keeps someone else from making this mistake. Now I have to purchase additional yardage to make this quilt and I have just gotten started.



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