How to Make Voronoi Patterns with Autodesk® Meshmixer

April 30, 2015

Click here for our Instructable: "Make Voronoi Patterns with Autodesk Meshmixer"

 

Voronoi patters make interesting, organic looking models. You can add Voronoi patterns to an .STL or model that will import into Autodesk Meshmixer by reducing polygons and applying the Dual Edges pattern. Read more about Voronoi diagrams on Wikipedia. Download Meshmixer for free here.

 

Intro:
Voronoi patterns consist of lines connecting points that are the centers of circles which intersect with the model's triangle mesh to create a tube like structure that replaces the original polygons. Read more here: (wiki) Delaunay triangulation.

These patterns can provide consistent horizontal cross sections for slices that might be helpful when using SLA / resin 3D printers. Voronoi models can print well on most Fused Filament 3D printers. See our "little Dipper" 3D Printer post and Instructable for more Voronoi 3D prints.

 

Step 1: Import Model and Reduce Polygons

Click [Import icon] or file > Import
 

Select entire model using keyboard Ctrl+a or use the select tool to click and drag certain areas.  Edit menu appears at top after the selection turns orange.

Click [Edit] > [Reduce] while model is highlighted.

Increase percentage slider or change drop down to lower triangle / polygon count. Less polygons result in larger openings in the final model. It may help to try a very low polygon count or high percentage. Click [Accept]

 

Step 2: Apply and modify Pattern

Click [Edit] menu icon > make pattern

Change drop down to [Dual Edges] (generates pattern on exterior only) or [Mesh + Delaunay Dual Edges] (generates pattern inside model). [Element Dimensions] will make thicker or narrower tubes.

*Adjusting certain pattern settings may require intensive CPU usage.

*After clicking accept, you may want to reduce the new mesh polygons for easier 3D printing or importing into other programs.

 To save model: [File] > [export] .STL format
 

Comment and enjoy!
Thanks!
- Marshall P. 

 

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