Skip to main content
7 events
when toggle format what by license comment
Feb 20, 2019 at 10:35 comment added Manuel Rodriguez Perhaps i can sum it up, what the discussion was about so far: The agreement was, that calculating the inverse kinematics for a robot arm is an easy task which can be done without iterative calculations. And this was done many times in practical projects. I'm in doubt if this is true. The question itself in which the problem was explained took a half page plus lots of graphics and equations. That my answers gets heavy downvotes is ok, because I was not able to answer the problem fully. I have only explained, that it is complicated.
Feb 20, 2019 at 10:19 comment added Mark Booth Please try to be nice, there is no need for anyone to snippy or sarcastic. I shouldn't need to deal with flags that comments are "unfriendly or unkind". For specific guidelines, see our Code of Conduct.
Feb 6, 2019 at 20:51 comment added SteveO I have implemented closed-form inverse kinematics equations as part of practical, real-world programs for 6 and 8 DOF systems. I don’t understand where you are coming from. But that’s probably tangential to this topic.
Feb 6, 2019 at 10:12 comment added Manuel Rodriguez I'm sorry, that my answer isn't oriented on the closed form inverse kinematics, which is the easiest one to implement. The problem is, that I'm focussed on practical coding in real projects. Even in a 2d environment without a physics engine i recommend the iterative solution, because I'm interested in results and not in beautiful mathematics. It's my fault.
Feb 6, 2019 at 9:11 comment added Ugo Pattacini I concur with @SteveO when he says that for a 3DOF chain we shall use closed-form solution. Further, IK is not the hardest problem in Robotics since long by now; rather, it can be considered solved by resorting to: closed-form solutions, classical iterative Jacobian-based methods and optimization techniques.
Feb 5, 2019 at 23:58 comment added SteveO The inverse kinematics for this manipulator are calculatable in closed-form, and have been published in many places. Iterative solutions are not needed for this 3DOF arm.
Feb 5, 2019 at 19:36 history answered Manuel Rodriguez CC BY-SA 4.0