As you can perhaps see in the video one car rests on a tile on an extended bogie of the other. An elastic band for making clothing pulls the railcars together. Very little tension is needed. Then there is a cam in one car made of two 2 x 3 plates with rounded end and pin hole (3176) sticking into the black passageway of the other. The elastic band and the cam act as a flexible hinge with considerable play. Cars can move up and down freely relative to each other and even rotate (roll) a little but not too much.That is why you would need at least to 2x3 rounded plates, I think. The cam in one car protruding in the other one avoids left to right play since the elastic band keeps pulling the latter over the cam. In bends the the elastic bend stretches and pulls the black passageway to the side of the cam on the inside of a bend. That is why the elastic band should preferably be attached in the pinhole of the cam or closeby so as to pull in the same plane as where the cam sits. This setup was my second attempt and it never derailed again (in bends).
looks like a heavy tram
This is from the category: "I also knew how to do it, but -you see- I didn't think of it" :D
Thank you, I will try!
Amazing! I want to try and build one too
Awesome. Now its looks like more like tram :D
How does it make the curves without derailing from the gangways in between the train
As you can perhaps see in the video one car rests on a tile on an extended bogie of the other. An elastic band for making clothing pulls the railcars together. Very little tension is needed. Then there is a cam in one car made of two 2 x 3 plates with rounded end and pin hole (3176) sticking into the black passageway of the other. The elastic band and the cam act as a flexible hinge with considerable play. Cars can move up and down freely relative to each other and even rotate (roll) a little but not too much.That is why you would need at least to 2x3 rounded plates, I think.
The cam in one car protruding in the other one avoids left to right play since the elastic band keeps pulling the latter over the cam. In bends the the elastic bend stretches and pulls the black passageway to the side of the cam on the inside of a bend. That is why the elastic band should preferably be attached in the pinhole of the cam or closeby so as to pull in the same plane as where the cam sits. This setup was my second attempt and it never derailed again (in bends).