The study on the model orientation angle for accuracy of elements made with rapid prototyping fdm method

This paper presents the results of the research aimed at determining the influence of angle of model orientation in the working chamber on the accuracy of elements made with the FDM rapid prototyping method. Test samples were prepared to allow the measurement and analysis of printing accuracy at different angles of inclination of model surface walls. Surface finish precision has also been taken into account through the analysis of the influence of the surface inclination angle on the surface roughness degree. The research showed that the linear manufacturing errors do not exceed 0.13 mm, while the angular errors are lower than 0.77 degrees. The influence of the angle of the walls on the roughness is also important. Changing the angle can increase the roughness from Ra 12 to even more than Ra 100. The summary contains comments and recommendations concerning the orientation of models in FDM printing. They are helpful in choosing the printing parameters and arrangement of elements for optimal surface quality.