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Failing supports

Last updated a year ago
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Supports are an important part of a 3D printed object, especially when you need to print complex models. So when the supports fail (break) like in the picture above, it usually affects the rest of the print. Most often, the print won’t finish successfully.

failing support

Supporting pillars, especially when using low support density, can be quite fragile and not very stable things. The taller (and thinner) the supports, the higher the danger of failure.

In places where you have big overhangs, supports should be added. Although some overhangs can be printed without supports, in many cases supports are required and the print won’t finish successfully without them. For overhang tests, you can download STL models from our platform here.

How to prevent failing supports

  • Avoid isolated support towers, Cut printed objects to more parts.
  • Reduce printing speed for supports in PrusaSlicer, section Print settings – Speed
  • Use a Brim around our support, found within Print settings – Skirt and Brim
  • Use a different 'pattern' of the support. in PrusaSlicer, section Print setting – Support material – Pattern.
  • Change the value of the Overhang Threshold. The Overhang threshold value represents the most horizontal slope (measured from the horizontal plane) that you can print without support material (90=vertical).
  • Use custom supports, tailored to your model.

Speed Settings location

Support Settings location

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