Joint to ground?

Joint to ground?

joergen_nilsson
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Message 1 of 10

Joint to ground?

joergen_nilsson
Enthusiast
Enthusiast

Can I create a joint directly between a part and ground, without having to model a second dummy-part just to make it grounded? For instance if I'd like to rotate a wheel with a revolute joint without modelling the wheel hub.

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725 Views
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Replies (9)
Message 2 of 10

jhackney1972
Consultant
Consultant

Sure, make the top level Origin visible and create a Joint between your component and the Origin Point.

 

Joint to Origin.gif

John Hackney, Retired
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Message 3 of 10

jeff_strater
Community Manager
Community Manager

You can create a revolute joint to the root component origin, which would allow you to create the relationship I think you want.


Jeff Strater
Engineering Director
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Message 4 of 10

jhackney1972
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Message 5 of 10

Drewpan
Advisor
Advisor

Hi,

 

Why do you need a Joint to the ground? Shouldn't you simply ground the object then manipulate it?

Drewpan_0-1708900340364.png

 

Cheers

 

Andrew

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Message 6 of 10

laughingcreek
Mentor
Mentor
Accepted solution

@Drewpan wrote:

Hi,

 

Why do you need a Joint to the ground? Shouldn't you simply ground the object then manipulate it?...

 

 


OP stated he wants a revolute joint so he can spin the object.  not sure how grounding and then "manipulating" it would be of use.

 

@joergen_nilsson - if you have built the body of the component "in place", meaning it is already where you intend it to be, you can use an "as built" joint between it and the top level.

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Message 7 of 10

Drewpan
Advisor
Advisor
Oops! My mistake.
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Message 8 of 10

joergen_nilsson
Enthusiast
Enthusiast

Perfect, that was a neat solution 🙂 

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Message 9 of 10

wkearneyFVALX
Community Visitor
Community Visitor

With a recent update "ground" seems to be missing...

 

What am I missing?

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Message 10 of 10

jeff_strater
Community Manager
Community Manager

the old "Ground" is now "Pin", and there is a new "Ground to Parent" (anchor icon), which just implements the solution in message 2 of this thread (creates a rigid joint to the parent's origin).  This allows the relationship to survive the Insert operation (the old Ground was stripped on insert).  Makes it easier to create rigid sub-assembly.

 

Screenshot 2024-05-23 at 11.37.57 AM.png


Jeff Strater
Engineering Director