Being very new to Bongo. I was wondering

[vedat]

Is it possible to animate the red flexible cord sliding through the block as shown below in Bongo? I appreciate if you provide few steps for the process. Thanks

[Luc (Luc Adriaenssen)]

Your puzzle is somewhat like the one in an previous topic on this forum “Path trace”. The technique (the use of Rhino’s History) is treated in a video tutorial on Bongo’s site : http://bongo.rhino3d.com/video/the-power-of-history.

Here’s a sample model:Vedat.3dm (152.6 KB)

Luc

[vedat]

Luc

Thanks for your answer. It definitely works.

Vedat

[Micha]

Also seen at Lucs video - I like the flow command in combination with history. Last I did a simple test with a “train”.

Train composition animation

It’s a matter of mechanics. In order to follow a 3 dimensional track the hinges should be able to evolve 3 dimensional. If not the train is vertically stiff as a stick. In BongoIK_03 001.3dm (78.9 KB) I made all hinges “Universal” allowing rotation along Y and Z axes – and the IK-solver finds a nice solution. 2 rotational axis suffice to give the joints enough freedom. Notice there is no telling how IK will make the chariots turn around their x-axis. When you add freedom of rotation around the …