Printer Surface Quality Test (Ringing, Input Shaping, Extrusion Accuracy)

A small test print that i use to evaluate the extruder accuracy and vibration of a printer. 

used for tuning extruder settings as well as input shaping / ringing compensation.

it can also be used to test the quality of filament (for example wet filament will leave surface defects) and stepper driver accuracy (rough stepping is easy to see on the slightly angled surfaces)