Presenting the infamous Sterns and Ward coupler:
I gather a "true" 4000 model, whether a Baldie or Plushie, wouldn't be complete without this rather unique, if somewhat unloved, coupler. CRT and the London Underground seem to be the only adopters, maybe due to the Samuel Insull connection. Otherwise, it seems as if early century rapid transit companies missed out on all the fun.
Therefore, after a lengthy study of the real thing at IRM, and the review of scale plans provided by Ed Halstead (be sure to always visit Ed's blog, linked to on the right), I have been working on a 3D model of this much loved (?) coupler.
The above pictures are of the initial 3D drawings. The somewhat lengthy shank needs some fine tuning to correctly fit under the car.
One benefit of 3D modeling is that the models can be combined and measurements taken to see how everything fits together. The following picture shows the couple at the correct height above an imaginary rail head:
Following is a visual study of this much maligned coupler:
Due to limitations in the 3D printing process, the coupler will not be functional. But, I will try to make it were two could slot together.