In the fast-developing market of customer products, a development lead time becomes more and more critical. However, these technologies have limits. Also, the application of so-called additive manufacturing technologies, particularly FDM 3D printing, is limited by the materials used and the part’s quality. The significant advantage of additive manufacturing is building components without the use of molds or tools. The paper presents an experience of fast prototyping a centrifugal compressor using 3D printing with polymer plastics. 3D printing of parts has the main goal in this study to develop a structural and functional prototype for variation centrifugal compressors testing. Additive manufacturing technologies can fabricate centrifugal compressors with less labor and any configuration. Attention is paid to the choice of 3D printing technology, materials, and the influence of printing parameters on the product's mechanical properties. In conclusion, experimental results are presented for the prototype together with recommendations for serial manufacturing. Also, a laboratory bench is described where variant tests will be carried out. All this will allow the reader to interpret those solutions more reasonably and take into account the specifics in more detail when developing a technical requirement for centrifugal compressors testing.