Mah, a tube quilt like Cathy's is with 2 color strips sewed together and a solid fabric cut the same size as the two strips and you sew the solid fabric to the strip fabric ((right side together)) on both sides to make a tube. you start cutting using a 45 angle, then turn the ruler around and cut another 45, until you cut your tube. go to the Missouri quilt co link that is in Cathy's post. hope this helps you
Jessie