WOW! That is going to be spectacular! Glad you settled on the on point pattern.

I hope before you sew the quilt together you turn the third row block up from the bottom on the right side the second block in from the right a half turn so the sashing is on the correct side. Beautiful quilt.

Beautiful quilt! I love all of the pretty colors with the black background. Great job!

Not sure if this helps, but, when my brain will not wrap around a measurement needed, I go to the graph paper. I draw out the section using 4 squares to an inch. I start with the piece I do understand and draw out to the piece I need. Then I count squares. It seems that when I have the numbers and drawing in front of me, it makes sense. And it seems that the older I get, the more graph paper I buy!!

I cut paper until I get the size that fits. I don't like math.

Lovely quilt. Jan in VA has a wonderful graph that shows how to cut those triangles to get straight grain on the outside edge, and straight grain on the outside of the corner triangles. They are cut differently. If you haven't done that with this quilt, maybe you could get those directions to have on hand for the next one.

Good catch! I always tell people to step back and admire your work as you go along. That will make it easier to find such boo-boos.