I needed to make the block 4 1/2 inch. But when I did that it made the outside blocks to small....I have to recut all new 2 1/2 pieces...first need to find new strips. A few were the only ones I had left of that style...I am going to check out the video jillaine posted. I watched one so far...not the the one she posted another one which is of course not for a 9 patch....