Not all rulers are the same .
#32
I make wine, and have found that the gallon and or imperial gallon marks on the buckets and carboys (the imperial gallon and american gallon are quite different also) mean nothing! I always have to use my usual gallon container and remark all the lines. I think the same is true for rulers. It depends on where they are manufactured, and whether they really care about precision. I am fortunate that my cutting mats are very accurate, so that is what I use for my measurements.
Phyllis
Phyllis
#34
Senior Member
Join Date: Nov 2010
Location: Seattle
Posts: 695
I guess I'm another one of the lucky ones. I have one O'Lipfa and several OmniGrids and they match up. Even checked against my mat both brands match up with it, too, although I don't use it for exact measuring. Could it depend on the day of the week rulers are made, like automobiles? They say don't buy a car made on a Monday or a Friday.
#37
Super Member
Join Date: Mar 2008
Location: AZ and CT
Posts: 4,898
I noticed this a l-o-n-g time ago and wrote to all the companies, asking them why they don't all have the same 1 inch measure on their rulers. No one ever answered my letters! The big mat on my cutting table is fine for the first 30 inches, but it stretches the inches after that! Go figure! At least I know that, and don't rely on the mat at the far end.
#38
Super Member
Join Date: Sep 2010
Location: Myrtle Beach, SC
Posts: 8,139
OH, My! My quilts must be awfully out of shape...my eyes are so bad that I can't even see the individual threads when I'm cutting! Luckily, my target audience (grands and children in foster care) doesn't care about that stuff.
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