VFA test

VFA (Vertical Fine Artifacts) Test – 40–200 mm/s

This 3D test model is used to analyze Vertical Fine Artifacts (VFA), also known as vertical grooves or ghosting artifacts, which can be caused by mechanical resonances, belts, motors, or printing speeds

The model is structured in speed steps from 40 to 200 mm/s. The printing speed gradually increases in 10 mm/s intervals, allowing the influence of speed on the print quality to be clearly recognized

Application area:

• Detection of VFA and resonances
• Optimization of print speed
• Comparison of different acceleration and jerk settings
• Evaluation of mechanical modifications (belts, bearings, motors)

Usage:
During printing, the speed increases with each step. The surface texture can be used to determine at which speeds VFA occurs most strongly or minimally. The areas with the cleanest print quality are suitable as recommended operating speeds for high-quality prints

Note:
For reproducible results, acceleration, jerk, input shaping, and cooling should be kept constant