Step 4: Attaching the 2nd and 3rd outer ribs
Basically the same step as the first rib. I attached the second rib to the third highest elbow's highest edge, and the third outer rib to the very highest elbow's highest edge. As I placed the second rib on to the frame I duct taped the tips together a little to allow for flex as I continued shaping it, then did the same as I added the third outer rib. The last step of the frame I duct taped the two ends to protect the tarp and to help give it shape.