In light of turistic heritage to revive the tradition of flax production we have noticed the need for flax machine threshing on our family farm due to the increased demand for organically produced flax seed. Therefore, the thesis focuses on the development of a convenient threshing machine to meet the needs for home flax production as well as to demonstrate the process. Since this type of plant and its machining are less known to people, the thesis opens with a description of flax and its properties and introduces the operation of the threshing machine. This is followed by an analysis of the market, where I have discovered that the Slovenian market does not offer a threshing machine that meets our needs. We have therefore set out to develop a new device based on our requirements and wishes. From the design requirement, we have derived which functions the device must meet, and in this way we have created a functional structure that serves as a starting point of principles of operation. On the basis of the morphological matrix, a set of three concepts have been created and further evaluated from both a technical and an economic point of view. Finally, the concept with the highest overall score for its performance has been selected and the main hardware elements have been dimensioned.
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