@jsgodwin said:

Thanks for posting this! When opening the .geo file in gmsh, visually everything looks correct, but gmsh lists errors when reading the line loops.

You could give my exporter a try, the line loops are exported correctly.

Hi Bomastudio,

Some time ago I've written an export script from Sketchup to Gmsh.

Sketchup Groups are exported as Volumes in Gmsh
Sketchup Faces are exported as plane surfaces in Gmsh
Sketchup Edges are exported as lines in Gmsh
Sketchup Vertices are exported as points in Gmsh

The script handles nested groups and applies all transformations to the points in Gmsh
Inner faces are exported correctly.
It even exports text entered in Sketchup (not 3D text).

The only thing this script doesn't do is: Export circles and arc's as Gmsh circles, it now just exports them as lines and points (that's how Sketchup see's them).
To correct this you'll need to take a look a IGES_EXPORT and how it exports circles, cylinders and cones.

Gmsh Export script for Sketchup