Hi to all,
For some reason a very simple model is not working for my very simple model.
I did the tutorial for the inverse kinematics and work flawlessly but now that I do it on my own on a very simple model it does not.
It is not dynamical, just kinematics, all built but it is not moving according to the target, not following.
Can you provide some help ?
This is the link to my scene. https://www.dropbox.com/s/eq2r2j78atvbo ... e.ttt?dl=0
Thanks in advance.
Inverse kinematics not working for very simple robot
Re: Inverse kinematics not working for very simple robot
Hello,
you have two problems:
you have two problems:
- You have a 2 DoF mechanism, but try to apply 6 constraints to it. Solution: make sure your IK element has only following constraints enabled: X and Z
- You have your mechanism initially in a singular configuration. IK doesn't like that. Solution: either select a damped resolution method, or move a little bit away from the singularity (by initially setting the second joint angle to a small angle for instance)
Re: Inverse kinematics not working for very simple robot
Thank you for your reply. I will try to do that.
I also found a solution myself and fits exactly with the solution proposed.
What I did was adding another joint at the base that is perpendicular to the other two. This make it work but with the condition of not moving in a different plane of the planar robot so it keeps on 0 degrees.
I will try your solution.
Best,
Juan
I also found a solution myself and fits exactly with the solution proposed.
What I did was adding another joint at the base that is perpendicular to the other two. This make it work but with the condition of not moving in a different plane of the planar robot so it keeps on 0 degrees.
I will try your solution.
Best,
Juan
Re: Inverse kinematics not working for very simple robot
Hello,
It can happen with imported robot from the library, that the joints are not in inverse kinematic mode :) It took me for a while to discover.
Regards,
david
It can happen with imported robot from the library, that the joints are not in inverse kinematic mode :) It took me for a while to discover.
Regards,
david