It is always rather difficult to find a contractor for the production of ultra-small series of goods. Many companies are not ready to take responsibility for the development and production of a complex housing when the planned circulation does not exceed several dozen pieces. However, our office does not have such restrictions, so the project of housing for the blood analyzer developed by the Tehnomedika Company was a pleasant, though not the easiest, task. We were required to alter the design of an existing instrument, to modernize it and make the first batch of «test» cases. The project was completed in full, and after that real housings have been tested and released.