This is an object in 4 versions to test the maximal possible overhang angle which you can properly print with your printer.
Choose on test object and print it with different angles (0-90-180-270) around the z-axis to check how much the maximal overhang angle depends on your object cooling.
The objects have angles from 30-75, 30-80, 30-85 and 55-85 degrees.
Scale the object up or down to fit for your needs.
depends on what you want to test