RT Journal Article SR Electronic A1 Strnad, Jan A1 Reznicek, Martin A1 Jelinkova, Kristyna A1 Janostik, Vaclav A1 Ovsik, Martin T1 Possibilities of Creating a Mechanism on FDM 3D Printer JF Manufacturing Technology Journal YR 2019 VO 19 IS 3 SP 508 OP 512 DO 10.21062/ujep/320.2019/a/1213-2489/MT/19/3/508 UL https://journalmt.com/artkey/mft-201903-0025.php AB The article deals with additive manufacturing technologies especially with ability to create reports on FDM 3D printers. These assemblies are non-disambiguable. Therefore, it is important to choose the optimal magnitude of the deviation between the walls so that the mechanism has the required mobility. These deviations are examined in several materials with different rheological properties. Finally, the dependence of the magnitude of the variance between the walls and the thickness of the layer for the given materials is shown. The result is the recommendation of modelling and printing parameters.