Hey guys, any educated guesses as to the number of yards left on this roll of 3k twill 5.7oz 50" wide roll of carbon fiber? Of the original 100 yards, the depth of material left on the roll is about 1.5". I was guessing about 65 to 70 yards.
What do we get if we guess correctly? 
You get a can of really old resin.
well I measured my roll I have and it is just over an inch and a half and it is 76 yards I have left. I have been calculating ever since I started the roll every time I cut pieces off.
Thanks - that is a great reference and exactly the thing I was hoping for. Meaning that someone was measuring how much they were taking off their role. This is a role of excess carbon that I am going to throw out on eBay. I also have some smaller amounts of colored stuff (yellow, red, orange, and blue) that will be put to auction.
Wouldn’t the paper roll diameter have other factors in that too?
not to mention how tight it is wound, could be any where from 45 to 75 yards,
Probably get more money for it by the yard on fleebay, not many people have the dough for 50 yards at a time, lots of people have the dough for 1-10 yards, just more hassle shipping.