Overhangs

Also see:
Bridging

Print a Micro Overhang Tower and set the Overhang Threshold to the ° of the first segment showing poor print quality.

• Reducing the Overhang Print Speed can produce better results. Do Bridge Flow Calibration before adjusting Overhang Print Speed.
• Reducing the Layer Height can improve performance on Overhangs.
• Poor Overhangs might be caused by Nozzle Wear.
• A lower Nozzle Temperature can improve Overhangs.
• Reducing Infill Overlap can help improve Overhangs.
• Set Bridge speed and fan to cover the first segment affected by poor print quality.
  
  

Overhang Testing:

Try a 4 way Overhang test to check if the fan angle affects performance.

Try:

• Overhang challenge
• The Chirping Bird Whistle

The direction of that the Parts Cooling Fan blows air onto the print can reduce its effectiveness from one angle more than another. A Overhang 360° Test can help determine if that is issue.

Supporting Documentation

Videos:

• How to Avoid Needing Support Material
• 3D Printing Tip - How to Get Good Overhangs

Articles:

• How to Print Overhangs, Bridges and Exceeding the 45° Rule
• 3D Print Overhangs and How To Deal With Them