Hello,
I have a problem related to the rolling of paper tubes. More precisely, it is always the part where two sides meet. These parts are never bent enough to meet each other properly and form a complete circle. On this page
Card Modeling FAQ: 3. How about tips on techniques? I found some useful comments, but it is only related to general rolling of cylinders. I will try to illustrate it with a simple sketch (upper is the proper one, lower is what I get):
Thanks in advance!