About this 3D model

A simple dog-bone (male-male) connector for Thomas- and Brio-compatible wooden train track. This renders in "solid" and "spring" variations. The spring version is the original design but the now-default solid version looks better and actually uses quite a bit less filament (5-15% less for 25-15% infill). To render this shape, you will need [tracklib.scad](http://www.thingiverse.com/thing:216915) installed in the same directory as this file, or the [dotscad/trains](https://github.com/dotscad/trains) repository cloned in its entirety (which will include this file and tracklib.scad). This openSCAD library is part of the [dotscad](https://github.com/dotscad/dotscad) project. Please check there for the latest versions of this and other related files.