Suction Cup Detector

Detects Suctions cups highlighting their surface area with a yellow pattern.

Suction Cups are a very common problem in resin 3D printing that causes frequent failure. 

Not to be confused with peel force or cross sections. Suction Cups are created when you have a void in your model with no way for resin and air to escape during the print.

Because of these suction cups, large forces can be applied to your 3D prints that can cause parts of the model to break off, cause degenerate holes, tear the model off the supports, and more.

To make matters worse, you can also have areas where liquid resin gets trapped, which can also cause prints to burst over time and spill resin everywhere.

Search Selected

  • Search all selected objects for suction cups.
  • This search will include suction cups created by hollowing or the geometry of the model. 


  • Center the camera on a detected suction cup.
  • Use the arrows to move between detected issues. 


  • Hitting the Trash icon will delete the yellow pattern generated by the suction cup detector, not resolve suction cups. 

How to resolve a Suction Cup

Use Blockers to fill Emulated 3D hollowing voids. 

  • Cannot be used to fill suction cups caused by the Objects Geometry. 

Use Holes to open a suction cup to air and resin flow.

  • Be careful. This hole must have a minimum size to make the resin circulate as efficiently as possible, especially for resin with low viscosity. The bigger the holes and the more of them, the better.
  • 3-5mm is a good starting point for small to medium prints.

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