After the research phase, the final design will be made. When the design is finished, we can start constructing the prototype. The number of prototypes that we will make is dependent on our design. We will make several cookstove designs. Only if we do not already know which design is best, we will prototype more designs. The prototypes will be tested and if possible a new improved prototype will be made.
Prototyping
After the research phase, the final design will be made. When the design is finished, we can start constructing the prototype.