Originally Posted by deemail

I used canvas...wish i had seen the stripe... i used a permanent sharpie and followed an actual thread all the way across on both sides (one for attaching to the pipe and the other for finishing the working edge)... just so i could have a better line than the original leaders. then i sewed a couple of measuring tapes FROM the center to the outside, with the first, and then FROM the center to the outside with the second. One will be upside down but you can still read it and the reference points will be great, FOREVER.