This is a project I'm busy with. The aim was to design a vehicle in 1/6 scale that could be downloaded, both with plans for construction and all necessary files needed to print the component parts on the simplest and cheapest printers. This is the first test model. . he next stage is to apply the necessary changes to the print files and to build the final version. Whilst not for the feint of heart,it can be built with the simplest of tools, with the wooden hull from scrap plywood and additional details from brass wire.