Mega quilt blocks - one block the size of a lap quilt - instructions, Patterns?

I did this once by re-drafting but it was so long ago I forgot how I did it. Now I would just take my pattern to an office supply place like Kinko's, Staples, or Office Depot and get them to enlarge a pattern. In order to get the right size it might have to be broken up into 4 parts and then taped together to get a pattern and then out of a second copy cut your working pattern.