Hierarchy of links

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Vadana
Posts: 1
Joined: 08 Jan 2024, 17:15

Hierarchy of links

Post by Vadana »

Hey,
I have some robot:
Image
In links L3,L6 and L7 what sould be the hierarchy?
A change in the angle of link L3 will change the angle of link L7 and also a change in the angle of link L6 will change link L7.
Image of links L3, L6, L7 in 3D:
Image
I manage to cause a change in angle only according to one link out of the 2.
How can I solve this?
Thanks.

coppelia
Site Admin
Posts: 10375
Joined: 14 Dec 2012, 00:25

Re: Hierarchy of links

Post by coppelia »

Hello,

you have a loop closure situation. First you need to decide if your simulation is kinematic or dynamic. The approach is not the same:
  • Kinematic simulation: you need to handle the situation using forward or inverse kinematics. Have a look at the demo scenes in scenes/kinematics/, where some of the examples are also looped.
  • Dynamics simulation: you need to handle the situation using a loop closure dummy-pair.
Cheers

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