Originally Posted by steelecg
There is an engineers ruler that is about $5 that you put in the measurement you have and look across to size you want and it will tell you how much to increase the copier setting -some quilt stores have them but can be found at an office supply place as well.
They are probably handy, but I already have a calculator and it works great! Isn't free enterprise handy to suppply a gadget for every need.