This is a 4-version object to test the maximum possible overhang angle that you can correctly print with your printer.

Choose a test object and print it at different angles (0-90-180-270) around the z-axis to see how much the maximum overhang angle depends on the cooling of the object.

The objects have angles of 30-75, 30-80, 30-85 and 55-85 degrees.

Scale the object up or down to suit your needs.