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Exhaust Steam Injector for Steam Engine

posted Mar 27, 2013, 7:10 PM by Jay Gross   [ updated Sep 30, 2013, 4:26 AM ]
This project was done from photographs of an actual train part and a railroad part placement drawing from 1944. The train for the actual part was a bit different than the train we had access to, so the final model was modified to match the photographs of the Challenger (UP3977 and UP3985). This part was modeled directly in SolidWorks. A watertight mesh (STL) was generated for rapid prototyping from the finished CAD model. The physical parts were fabricated by Shapeways.com from the STL files. You can read more about this project in Interesting Projects
 
 
          

Here is the full-sized injector mounted on a Challenger Steam Engine. To the right is the railroad drawing. Look closely and you will see it does not match either train!

 

  
         
The final size is 1/8 of the original, so these parts in the right picture are around  1 inch long. Some of the smaller features were not modeled because of the feature size limitation for rapid prototype produced parts. These will be fabricated by hand by the client.
 
This part appears with permission of Wayne Godshall of Godshall's Custom Machining.