Questions tagged [joint]

The point of contact between elements of a robot with the parts that surround and support it

The point of contact between elements of a robot with the parts that surround and support it.

139 questions
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4 answers

Determine what the rotation axis is given a rotation matrix

How do I find out around which axis the coordinate system has to rotate, if the rotation matrix is given? $ {^{a}R_{b} } $ = $ \left(\begin{matrix} 0 & 1 & 0 \\ -1 & 0 & 0 \\ 0 & 0 & 1 \\\end{matrix}\right)$ $ {^{a}R_{c} } $ = $…
cindy
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1 answer

Lateral load on a servo motor

Looking at pictures of existing designs for quadropod robots, the servos in the legs seem to usually be mounted inside the chassis, with a second attachment at back of the servo as well, such as this: rather than putting what looks like an…
Jimmy
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2 answers

Are joint state vectors limited?

Are joint-state vectors $q$, which define the position and orientation of a set of joints, limited somehow? I know they are used for the rotation part of the transformation matrix => therefore I would think they were limited within 0 and 2$\pi$
Carlton Banks
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