We purchased boards that are placed behind comic books as the board for the mini bolts for stability. I used two the first time and after that only used one per bolt. The ones I used are 6 3/4" X 10 1/2" there are 100 in a package and they were $6.99. Start by laying out your fabric with the folded side at the top or furthest away from your body with the selvage next to your body.
When you get to the end of the fabric simply fold the edge over and secure with a straight pin.