I love my one person double wall tent but it is just too heavy. But thanks to this website and all the Cuben fiber information I have started a project to build a double wall one man tent with Cuben fiber(CTO.6K.08) and nanoseeum netting as the primary materials. I am using Carbon fiber poles from Fibraplex.
The tent is patterned after the Eureka spitfire UL with some tailoring to improve and reduce the size. I chose this tent after studying the Big Agnes Seedhouse and the big sky one man tents. The spitfire design has the lightest potential. My weight estimate is 1.5 lbs. I know that is still pretty heavy for the SUL crowd but I think you still might be interested in the construction.
I have done some testing and have come up with ways to make all joints with tape or bond. Each of these joints I expect to be stronger than the material itself and the equivalent sewn joint. I have tried tape from Quest (unknown type from sail industry) and I plan to try 3M 9460. The bond recommended by Chris at Cuben is loctite U-10FL. Since this is a urethane flexible adhesive I decided to try Aqua Seal. This is also a urethane adhesive. It worked great. I failed the material with no impact at all to the bonded joint. I have used Aqua Seal in other applications and I think it will survive the backpacking environment just fine.
I am creating the tent pattern by constructing a styrofoam skeleton that supports the main seams as shown in the picture.
The main tieouts for tent floor and rain fly will be made similar to this sample. This sample joint was made from individual strips of cuben arranged in V's. One leg of V goes on top of sheet and the other goes on the bottom. Each adjacent strip is a narrow V-shape until the center strip overlays itself. I have tested this with about 20 lbs with a 4 inch drop. It is working as well as the joints in my existing tent. Here is a picture.
I will add more as I progress through the design
