I think the formula for each block should be this:
Whatever you block side is subtract .5 then multiply by 1.4 then subtract .5. Maybe someone could see if that works for their block size.
I'm guessing happens as your using the diameter of the original square less the 1/4 inch sewn around all sides, then minus the 1/2 when you sew those diameters (or think of it as the hypotenuse) sewn back together and losing another 1/2 inch.
Originally Posted by susiequilt
Welcome all of you!
I made a test block today using the sew around the edge method.
I started with an 8 inch block expecting to end with a 9 1/2" unfinished block. It came out 10" which would make a 9 1/2" finished block. I have no idea why.
I rewatched the video and noticed near the end when she was just finished sewing the block together that she said the block could be 5 1/2" or 6" block depending on the size block you start with. She started with a 5" charm block so I don't know why she didn't know how much the block would measure.
I'm confused now but I will make another over the weekend and see what that measures.
It won't matter to me what size they end up AS LONG AS THEY ARE ALL THE SAME SIZE!
Has anyone else tried a block?
I don't know if the chart is wrong but it must be, it couldn't be me! :-D