Originally Posted by
quiltlin
Oh, forgot to say. It also makes a difference if you put the desired line "on" the edge of the fabric or "right over" the edge of the fabric. People place their rulers in different places and sometimes we don't think it matters much but that is why sometimes when you do blocks swaps that the blocks are just a teeny bit off.
I'm never quite sure about this either. I try to put the ruler "on the edge".....but I do sometimes, come up a bit short.....so should it be "right over the edge" or "on the edge"?