Wireframe Design Methods In Cad

Can anyone point me to a video on how to achieve the cool wire frame designs I see all over Shapeways.
I consider myself a (former) mechanical CAD expert user having worked in the field.
I have access, but no knowledge of Zbrush, access and limited knowledge of SketchUp and use Fusion360 for my day to day.

In Fusion I would sculpt or model, shell the shape, then... ???

All help is appreciated as long as it is not "Buy this $XXXX CAD tool."

Thanks all!
Miles

Meshlab, Meshmixer, even Sketchup can do it.
Search for 'Voronoi' on YouTube

I may be mistaken, but from what I can tell, those are Delaunay triangulations (which are dual to Voronoi diagrams).

Start with the simplest: low poly version converted to tubes. In Blender that can be done via the wireframe modifier and tool.

Blender has a pretty easy way to do it, and its totally free https://www.blender.org/manual/modeling/modifiers/generate/wireframe.html