Originally Posted by fabric whisperer
it looks like fun ~ and I am a graphic designer of 27 years, so as my signature says, I let the fabric & established design tell me where to go next... I already have an inkling of what to do for a center block, are there pre-set measurements for each "round"?
That is up to the person that sets the rules. I've done a few of these and each one was different. Centers usually can't be larger than a set size, but often the size ( or width ) of the borders isn't set, everyone just decides as they work on the quilt.