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A KDL Segment allows you to set the tip anywhere you want: {{{ Segment::Segment(const std::string& _name, const Joint& _joint, const Frame& _f_tip, const RigidBodyInertia& _I) }}} So you should not need a dummy joint at the end of your chain.

A KDL Segment allows you to set the tip anywhere you want: {{{ want:

Segment::Segment(const std::string& std::string& _name, const Joint& _joint, const Frame& _f_tip, const RigidBodyInertia& _I) }}} RigidBodyInertia& _I)

So you should not need a dummy joint at the end of your chain.

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A KDL Segment allows you to set the tip anywhere you want:

Segment::Segment(const std::string& _name, const Joint& _joint, const Frame& _f_tip, const RigidBodyInertia& _I)

So you should not need a dummy joint at the end of your chain.

But to create a 'tip' using a URDF description, you indeed need to add a dummy link