How to simulate the movement of a camshaft?

Hi Jaime,
Thank you for your post.

Your radial motor model is nicely done, surely for a novice.
It looks like you revealed a bug. The point objects “1”, “2”, etc… (on Layer 03) play a significant role in the IK structures but for some reason the are set to “animation disabled”.

Animation enabled
Nevertheless the IK chain the is working properly. “Disabling animation” is supposed to temporarily put the object to rest. So this is a bug that the contraint keeps on working!

For that matter, when an object got animated during the making off but its active role has been exhausted, you can use the “Remove animation” option which will remove all the object’s animation data and hence clear the AnimationManager. As an alternative the button in the Object’s Properties panel can be used.
Animation removed

Concerning the Camshaft, there are various solutions.

In Camshaft Phy.3dm (5.5 MB) the power of ‘Physics’ has been deployed. This feature (new in Bongo 3.0) brings along lots of parameters, isn’t very self explanatory, has no documentation (yet) and unfortunately still needs quite a lot of elaboration. Have a look and ask for further explanation if needed.

In Camshaft Con IK.3dm (257.2 KB) the benefits of IK are used. The result isn’t 100% correct (the Physics solution is), but might suffice in some projects. In Bongo 3.0 the feature ‘Connection’ is introduced as an alternative to IK. We hope it is more accessible and user-friendly. As a foretaste I elaborated the IK structure in the model with a Connections version (a Slider and a Grasp).
I sure hope you would like to experiment with Connections.

Regards,
Luc

1 Like