Geodesic domes have been around for many years, and there have been many different adaptations of the “dome” concept. But the most common construction technique has been the “2V” Dome. Perfect for a hot house or even a camping tent, the 2V dome displays the basics of triangular engineering principals and the simplicity of construction. The 2V dome can be made out of a wide array of different materials, varying in cost depending on their intended application. But one of the most common construction techniques is using pvc pip; as it is reasonably strong and very cheap and easy to use. To construct a 2V geodesic dome out of pvc pipe, the most complex components are the joining connections at every intersection. There have been many different attempts to make this system efficient. Such as people 3D printing their own custom pvc joiners, as to get the 5 star connectors. (which home depot or Bunnings wouldn’t conventionally stock). But the most reliable and easy to use system which I have found is the “zip tie” method. 
(trademarked by: http://www.ziptiedomes.com/) - Australian Patent AU2013200553 was granted for our design on 28 August 2014 by the Australian Patent Office.)
This method of Geodesic dome construction is very efficient, as the zip ties add considerable strength to the dome; (but more importantly the joints, where the weak points would otherwise have inherently been). And more important it makes the geodesic dome very simple and easy to construct. Because all of the connections slot into each other, there is not hinges or carpentry required. All you need is literally a saw of some kind and a drill. The 2V dome is created using a series of hexagonal and pentagonal shapes which are joined together with additional triangles to make the structure whole and complete. A base triangle can be taken out of the lower ring to create an opening, without really hindering the structural integrity of the dome.