Try this

To enlarge: Size you want = 12" and Current size = 4"
12/4=3 (answer times 100 = 300%)
To reduce: Size you want = 7" and Current size = 12"
7/12=.58 (answer times 100 = 58%)

I now have a copy of this posted right beside my machine. I just wasn't sure about the 1/2" size or which to go by finished or unfinished. MTS answered that question for me as well, the finished size. Thanks everyone.

Take your pattern piece(s) to your copy store. They have a conversion chart that will tell you what percentage to copy it at. Either copy your pieces at the store, or just make one copy anduse it to make others at home. Hope this works for you; I do it all the time.

Gee, Another one to tackle, now I guess I will have to purchase the first 50 blocks. What a great website you linked us to MTS!!!!:)

I'd take the pattern to a copy place since there's a big difference in the enlargement. If its an easy pattern and you just need to enlarge it a little you can use graph paprer.

Copy shop will have the percentages.

You can use your own printer ( it gives you the directions) to make a four page pattern that you can tape together.
But be aware distortion can happen. Make two at 90* difference, and compare the measurements by putting one
over the top of the other, taping them to a window, and seeing if they match. If they don't ( worst case ) put on another piece of paper and draw the lines that fit the 12.5 block. It sounds much harder than it really is.

SO...SO...SO...SO...INTERESTING !! Thanks for this.

Staples will do blk. & wht. for.29 each & colored For .35 each.I have them do 1 copy go home scan it & make as many as I need.Wrong price look below.

Staples will do blk. & wht. for.20 each & colored For .35 each.I have them do 1 copy go home scan it & make as many as I need.