I have never quilted. But I like maths, puzzles,sudoku, etc. I have probably calculated the math on 7 or 8 quilts- including fabric yardage, from pictures or drawings where the entire quilt pic is 3"x4". (Even I find this weird and you guys are the only people who know
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Even weirder, I also have an ancient copy of AutoCad so when I actually do traipse into the dark side- I'll use that - so much easier.
But, if you have access to a copier or printer, you can scale copies up on a single block until you have the size you want/need.