Should this motion link animate ?

Should this motion link animate ?

TrippyLighting
Consultant Consultant
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Message 1 of 7

Should this motion link animate ?

TrippyLighting
Consultant
Consultant

A user on the German Fusion 360 forum was wondering how to get this to animate and I believe I've been able to do this before but I could not get this to work this time. I can manually move it and it behaves as intended.

 

I can also use the Animate button in the motion link UI. But using the browser function on the joint it does not behave.

 

 

 

 


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Message 2 of 7

paul.clauss
Alumni
Alumni

Hi @TrippyLighting

 

Thanks for posting. I believe that the "Animate Joint" option will only animate a single joint, but I do believe you've found some issues with the "Animate Model" option.

 

I found that "Animate Model" only worked to show a small portion of the motion (as defined by the Motion Link) and that it would not show any motion if the nut was in its resting position at the end of the shaft. If you pull the nut in towards the center of the shaft by dragging it and then animate the model, it will animate but will not show the full range of motion.animatemodel.gifThis is logged internally as FUS-41562. I'm unsure of exactly how the Animate Model command is set up to work and will reach out to provide any pertinent details as the development team looks into this.

 

Paul Clauss

Product Support Specialist




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Message 3 of 7

TrippyLighting
Consultant
Consultant

@paul.clauss thank you for looking into this!


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Message 4 of 7

paul.clauss
Alumni
Alumni

Hi @TrippyLighting

 

No problem. I was able to confirm that "Animate Model" should include motion links, so this is a bug. We did find that the animation works if you delete the existing joints and re-create the cylindrical joint with an as-built joint. Hopefully this will help work around this for the time being!

Paul Clauss

Product Support Specialist




Message 5 of 7

TrippyLighting
Consultant
Consultant

I cannot confirm that doing this with an as-built joint actually works.

Could you create a screencast of the workflow you used ?


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Message 6 of 7

paul.clauss
Alumni
Alumni

Hi @TrippyLighting

 

Thanks - this screencast from @jeff_strater shows the as-built joint. I hope this helps! 

Paul Clauss

Product Support Specialist




Message 7 of 7

TrippyLighting
Consultant
Consultant

The needed angle of rotation is 10 revolutions along 400 mm so the Angle in the motion link would need to be 3600.

That's the reason why this works in @jeff_strater's model, but not in mine, regardless of joint type.

I repeats the motion after one revolution. When you set the Angle to 3600 degrees it will travel 40mm and then start from the beginning.


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