i would stack row 1 and 2 .....sew them together then stack 3 sew it to row 2 stack and sew 4....etc leave them all chained together ....just cutting after the bottom row ...when done the blocks will all be sewn one direction ...i would lay it out and see if everything is in place then fold and sew the other direction .......kinda looks like swiss cheese but if i have something in the wrong place ....or turned wrong i just have to remove 2 sides and re sew instead of taking it out and on 4 sides and trying to get it back in that hole ...this also saves cutting all those blocks apart ...or loosing them