maybe this will help?
scroll down to "calculate the daughter size" and you will find a formula to get to a 6 1/2" block:
https://www.thesprucecrafts.com/disa...-quilt-2821751
here is another list of already calculated sizes including 6.5"
http://raevenfea.com/quilting/disappearing-nine-patch/
Last edited by 1CharmShort; 10-25-2024 at 12:25 AM.