How to properly setup animation between different types of joints?

How to properly setup animation between different types of joints?

groell_matze
Observer Observer
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Message 1 of 5

How to properly setup animation between different types of joints?

groell_matze
Observer
Observer

groell_matze_0-1735502356605.png

Goal is to rotate the cogwheel and the rod rotate 360 degrees, and while that happens the sliders need to go up and down ("rod pushes sliders"). I got all the joints working fine, but when joining them together the cogwheel doesnt rotate all 360 degrees, it just goes about 180 and then goes back 180 again. I guess it is because of how the sliders work, as they have a limitation.
Same problem joining the cogwheel and the see-saw at the top. It should also move up and down while the cogwheel rotates 360 degrees, it also has a limitation.
It is ok if only one slider and only one see-saw is connected with the cogwheel, because i can just connect the other slider and see-saw to their counterpart (?). 

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600 Views
4 Replies
Replies (4)
Message 2 of 5

groell_matze
Observer
Observer

Sorry for the mistake in the first sentence. Only one "rotate"

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Message 3 of 5

TimelesslyTiredYouth
Advocate
Advocate

In Fusion 360, ensure the cogwheel has a full 360° revolute joint without angle limits and link the sliders using motion links or contact sets. For the see-saw, use a revolute joint at the pivot and connect it to the cogwheel via a rigid link or proper gear ratio. Check the range of motion for all joints, ensuring sliders and see-saw match the cogwheel's rotation. Use the Motion Study tool to validate and adjust constraints if needed. Linking only one slider or see-saw simplifies the setup and can drive the rest naturally.

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Message 4 of 5

jeff_strater
Community Manager
Community Manager
Accepted solution

You just need to add 4 Tangent Relationships.  Yes, the wheel's movement is restricted.  Partly that is because of your joint limits, but also, Fusion has limitations - it will not rotate infinitely.  First, remove your joint limits (the Tangent Relationships remove the need for those).

 


Jeff Strater
Engineering Director
Message 5 of 5

groell_matze
Observer
Observer

thanks for taking the time for the video. got to make the connection a bit longer then so they for better.

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