I designed this tests because I don't like to use supports. According to the results of this test you can setup your slicer to minimize the use supports…

This is the second part of support material tests i designed. 
Here Is the link to the first test:
https://www.printables.com/it/model/400546-support-material-test

this time you can really stress your 3d printer…. follow the instructions carefully

HOW TO PRINT IT: 

• Place the side with lettering on the bed
• use your usual printing settings
• disable support
• infill 5-10%

HOW TO READ IT:

the curved side increase its inclination with every step on the other side, first step is vertical (90°) the others are the following:    45° 25° 15° 10° 5° (if not clear, take a look to the images)

TIPS & MORE

Try to print it with different layer height and speeds
The print will take around 2H…. But if your printer fail before finishing stop the process.
After the test change the settings in your slicer!
 

It would be great if you post a make with photos and the setting you used to print it, to help other user!