It is a 60 degree triangle. It is also known as a Stack 'n ' Whack. You stack 6 matching layers , cut , and sewing. They are very easy. But there are lots of bias and if you STARCH your fabric before cutting it out you will have better luck. The helps to keep those bias from stretching. You should try one.
Originally Posted by
brendapm
Beautiful quilt. Never heard of an OBW. How do you do that?