Whilst exploring ways of connecting the individual tetrahedrons, we were also conscious of the fact that we needed a way to connect the separate modules into a larger form. Each tetrahedron module has a tab on one edge, so we decided the best way to connect the modules was to slip the tab from one tetrahedron between the cardboard insert and the builders paper of the next module, then fasten the tab to the module using some form of pin or staple.
For our first test we explored the use of copper wire pulled through the tab and the module and then shaped to form a staple. The first step in this process was to punch a hole through both the tab and the corresponding module; we imagine that there will be some flexibility as to how the end user will construct the shelter, so they will need to punch their own holes according to how they are putting the kitset together.
Using a screw to make the holes through the corresponding tab and module
Copper wire is bent using pliers and threaded through the holes
Flipping the tetrahedron over, the ends of the copper staple are pulled through and flattened against the underside of the module
The completed copper staple
While we both really liked the aesthetic of the copper staple against the black builders paper, we felt that it would be a very fiddly process to undertake, especially as there would need to be a minimum of three staples to keep the tab secure. We are thinking that split pins would be a quicker way to connect the pieces, while still following the principle of a staple.