How to Deal with Overhang

How to Deal with Overhang


The Overhang looks ugly is simply because the printed layer is not supported well enough by the previous layer. This layer is partially printed into mid-air thus it tends to sag down or curl up. Curling around the corners becomes more problematic especially while printing with thin layer height.    

There are many variables that come into play which will affect how nice or bad the overhang will be printed like –Support, Orientation, Print Speed, Amount of Overhang, Cooling, etc.


Picture showing overhang in a 3D model

How to minimize Overhang

The overhang can be minimized by changing or enabling these properties.

  1. Support 

If possible, try to provide support for your model by enabling the support setting in your Slicer software. Carefully choose the type of support as per your model.

Image showing support setting in Cura

  1. Orientation 

Try to orient your model in a way that min. possible overhang is there. Thus, the model has a good printed layer.

Object in position of maximum overhang

Same object with minimum overhang

Print speed also affects quality. A slower print will always give improvement.

  1. Layer Height

Layer Height plays one of the important roles in the overhang. Depending upon your print sometimes a thicker layer height will good print and sometimes a thin layer will give a good print. But keep in the mind a thin layer curl upward more at the edges especially around the sharp edges. You need to experiment a little to see what works best for you.

  1. Cooling 

Cooling plays also an important part in the overhang. Make sure your cooling fans are running 100% while printing the overhang.

  1. Amount of Overhang 

Every printer has its own capability up to which it can print the overhang. So, try to keep your model in that limit to get good quality print. 

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