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Hello,


I am trying to create a simple spring mass system. Therefore I'm using a baseplate, which I fix to the origin, a spring damper part and a mass on top. It's basically like in the sketch I added, just upside down.


strdyn-u3z-freigeschnittenes-system.png


I am able to fix the baseplate and the spring to the baseplate. But if I try to animate the whole model, the mass just falls off. I used a translational joint to fix the mass to the spring.


 


Thank you for your help!


 


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Blumi,


 


Actually you can skip the base plate, you can directly attach the spring to ground body.


 


While creating Spring damper, select either body 1 or body 2 as Ground body


post-7616-0-90035500-1410425648_thumb.jp

post-7616-0-74533000-1410425729_thumb.jp

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