Good for you for showing this,
DublB
A picture is worth a 1000 words!
Originally Posted by
RUSewing
I've tried this b4, but wound up with lopsided squares. DUH, the key as you showed so well is squaring each one!
Assemble it fully, then do your squaring up ... be sure to leave the 1/4" allowance where your centre square meets the edge of the new square.