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Slic3r Manual

If the 3D mesh described in the model contains holes, or edges are misaligned (known as being non-manifold), then Slic3r may have problems working on it. Slic3r will attempt to fix any problems it can, but some problems are out of its reach. If the application complains that a model cannot be sliced correctly then there are several options available, and the ones described here are all free at the time of writing.

Netfabb Studio

Netfabb produce a range of 3D modelling applications, including a free basic version1. This version includes a mesh repair module which can help eliminate the various problems faced. Up-to-date instructions can be found on the Netfabb wiki2, the following is a quick overview of the steps involved.

Netfabb Studio: Part repair.

Netfabb Studio: Part repair.

Netfabb Cloud Service

Netfabb also hosts a web service where an STL file may be uploaded for it to be checked and repaired3.

Netfabb Cloud Services.

Netfabb Cloud Services.

FreeCAD

Freecad4 is a comprehensive, and free, CAD program which comes with a mesh module, in which repairs to degenerate models can be made. the following steps outline how a problem model file can be analysed and repaired.

FreeCAD part repair.

FreeCAD part repair.


  1. http://www.netfabb.com/basic.php

  2. http://wiki.netfabb.com/Part_Repair

  3. http://cloud.netfabb.com/

  4. http://sourceforge.net/projects/free-cad