I don't think I ever posted this here, but a couple of years ago I made a fairly faithful SketchUp 3D model of my bicycle trailer. This trailer is the 3rd and final version, which I've been enjoying ever since.




In the `trailer train' configuration,



The trailer at the back is the original v1, linked to v3 with a spare universal joint.

The SketchUp design is in layers, so you can hide/expose structures. Unfortunately, the complexity of the wheels increased the size of the file to 15MB.

http://www.thewhippersnapper.com/Tra..._2_layered.skp