Originally Posted by amma
Originally Posted by BKrenning
It's easy to enlarge most 12" patterns to 18" or even a 9" to 18". For 12"--you multiply by 1.5 and for 9"--you just double everything--multiply by 2. You could even take a 6" block & triple it. Try your math with paper first to see if you like the results. Sew it together just like fabric or tape it--remember the seam allowance if you tape it. Less guilt throwing paper in the trash than fabric!
Just remember not to double the seam allowances too :wink: :D:D:D
Right--take away the seam allowance before figuring how much to increase/decrease and then put it back. Sorry I forgot to mention that part. By habit now, I break a block down by gridding it and then adding on the seam allowance before cutting.