Kangaroo

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THIS FORUM IS NO LONGER ACTIVE. PLEASE POST ANY NEW QUESTIONS OR DISCUSSION ON:

https://discourse.mcneel.com/c/grasshopper/kangaroo

The discussions here are preserved for reference, but new questions posted here are likely to go unanswered.

Kangaroo is a Live Physics engine for interactive simulation, optimization and form-finding directly within Grasshopper.

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Glitch in the collision detection

by Victor Leung

Dec 14, 2013

Hi Daniel, great work.

I'm trying out this new gear feature and I tried to model a piston. I'm driving a piston by the rotational force turning the shaft to get linear motion.

Feels like I need a linear motion lock, instead of a circular axis lock (gear type), but I try to use a stationary object as a input gear to govern it. But there is a moment where the collision detection suddenly flips the object to another side.

  • up

    Daniel Piker

    Hi Victor,

    You're right - a linear motion lock would be a good addition, thanks. Eventually the plan is to allow all different constraint types to be combined, without needing to set order of dependency.

    In this specific case of the piston, I think it is actually easier to do with standard Grasshopper components(see the attached file).

    Still - it should be possible to do with the gear component, and this jumping shouldn't be happening - I'll try and figure out what is going on.

    1

    Dec 15, 2013