Working in pair with the absolute encoders, ball screws provide uniform layer height, which is important for achieving the overall part's size accuracy. Typically, the layer height is between 20 and 90 microns, in most cases it is 50 microns. It is very important to monitor the evenness of the layer during the entire 3D printing process as it affects the melting process.

Accuracy Grade C5 is the industry standard for ball screws, which are widely used in industrial metalworking centers. All AM3D metal 3D printers are equipped with precision ground ball screws of that grade.

For those who are hungry for more, we can install ball screws with an accuracy grade C3. For even better results, the printers can be equipped with high-precision optical rulers with an accuracy of 5 µm, 1 µm or 0.1 µm.