Since the beginning of August we have been busy building the main hull shape. (For more details on the design, see
this post from yesterday). The photos below show the story of our 10 days of building. From now until September we will finalize the electronics design and acquire the funds we need to buy the rest of our components.
The stringers on the hull sides are held in place by nails in the MDF stations, which determine the shape of the boat.
With a cedar core and a fiberglass shell, the hull sides are attached to the stringers with resin epoxy. The planks are held in place with clamps until the epoxy curing process finishes.
Luca Froelich tapes the last plank to the hull sides.
After finishing all the planks, we used SNA foam to make fair, rounded corners. These corners are sacrificial, meaning that if they break upon impact with another object in the water, the boat will still float. Here, YYen Gallup is sanding the corners to make them fair.
The solar cell array on top of the boat needs a cylindrical surface to rotate on. To achieve this, we made a fiberglass lay-up inside a PVC pipe. The lay-up consists of 5 layers of fiberglass with epoxy resin as an adhesive core, and will provide us with the puncture resistance that we need. Here YYen Gallup, Torbjørn R. Fyrvik and Don Martin are soaking the fiberglass in resin.
After 10 days of hard work, we finished the main hull structure and started building some of the other components. This photo shows the finished hull with our PVC mould by its side.