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Inverse kinematics of robotic arm

jump jack
Posted 1 year ago

I am trying to calculate inverse kinematics of a robotic arm made of 3 segments.
To do this, I need to find the intersections of a sphere with a circle.

I am trying with this:

But I am totally new to Wolfram notebooks, I just copied and pasted what I found around and messed with it....

How do I add to this nb some lines?

  1. line from sphere center to lower intersection
  2. line from circle center to lower intersection

Then, how do I calculate the angle in the picture below?

enter image description here
POSTED BY: jump jack
3 Replies
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Very strange. Try this

Solve[{(x - 1)^2 + (y - 1)^2 + (z - 3)^2 - 4 == 0,
  x - 1 == 0,
  (x - 2)^2 + (y - 2)^2 + (z - 1)^2 - 2 == 0},
 {x, y, z}]
POSTED BY: Gianluca Gorni
POSTED BY: Gianluca Gorni
jump jack
jump jack
Posted 1 year ago

I get "SolveValues:This system cannot be solved with the methods available to SolveValues."
POSTED BY: jump jack
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