Bogie Couplers
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Whilst building a particularly heavy train that needed to be hauled up a slope
I found that the standard magnetic train couplers were not able to hold the
weight of the train.  I therefore needed to come up with another method for
connecting trains.

 Method 1
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This method is very simple and uses the least number of parts.  It does suffer
from the drawback of having no horizontal pivot.  This causes the lift arm piece (#32017)
to bend when the track changes gradient the coupling tends to warp under the strain. 


 Method 2
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This method most closely emulates the pivot points in the magnetic couplers.  It does,
however, use a lot of elements.


 Method 3
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This method provides enough pivot points for most needs whilst only using 5 pieces.