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Sydney Trains K set (HO Scale) — image 1
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Sydney Trains K set (HO Scale)

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Model information

License
Creative Commons — Attribution — Noncommercial — Share Alike

Do you like trains, but the scale models ones cost too much? Have no fear. You can now 3D print your very own Sydney Trains K set in HO scale!

IMPORTANT NOTE: I designed this as a display model with a decreased part count, as a result, the wheels don't turn. There is also no interior. This model is also designed for easy printing, and therefore is not a 100% accurate model.

You can use your AMS/MMU etc to add your own livery, or you can paint it after printing.

PS. Remixes are allowed on this model. Feel free to design an S set or C set front

How to print:

  • I am assuming that you want to print the full 4 car set.
  • Print all the parts in the folders with the specified colour (recommended).
  • If the model says “2x front” for example, then print 2 of those, and vice versa.
  • Largest part is 235mm long. You can cut in the slicer to make it fit on your printer if needed.

Print settings (0.4mm nozzle):

  • 0.2mm layer height
  • 2-3 walls WITH ARACHNE WALL GENERATION ENABLED
  • 3 bottom layers, 5 top layers
  • 15% infill with your choice of pattern (gyroid recommended)
  • No supports
  • Brim may be required on smaller parts depending on your printer.

Assembly:

  1. Glue the “tub” to the 2 sides with superglue as shown (example with cab car)
    • Remember to not mix up the car types
  2. Glue the rest of the bottom of the car
    • For the “long” end, make sure the socket is offset to the left.
    • Length A should be slightly shorter than length B.
  3. Glue the front and back ends of the car. (example with cab car)
    • Remember that only the front of the cab cars have the destination board!
  4. Glue the roof segments as shown
    • Cab car has the universal “long” segment, plus the 3 curved ones
    • Non driving car has the universal “long” segment, plus 4 curved ones, plus the pantograph
    • The roof profile should look like this now
  5. Attach the roof to the car. (glue is optional here) 
    • The side of the roof with the aircon goes on the “long” end of the car
    • The roof with the pantograph goes on the non driving car
  6. Glue the bogie to the pin as shown, then attach the bogies to the car WITHOUT GLUE. The bogies should pop in with a bit of effort, and be able to rotate freely.
  7. Glue the couplers onto the end of the cars as shown.

 

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