< robot name =" robot0 " > < link name =" world " / > < joint name =" joint_0 " type =" fixed " > < parent link =" world "/ > < child link =" link_0 "/ > < link name =" link_0 " > < visual > < geometry > < cylinder length ="0.6" radius ="0.2"/ > < material name =" gray " > < color rgba ="0.5 0.5 0.5 1"/ > < joint name =" joint_1 " type =" revolute " > < origin xyz ="0 0 0.35" rpy ="1.57079632679 0 0"/ > < parent link =" link_0 "/ > < child link =" link_1 "/ > < limit effort ="30" velocity ="1.0" lower =" -3.1415926535897931" upper ="3 .141 59265 3589 7931 " / > < axis xyz ="0 1 0"/ > < link name =" link_1 " > < visual > < origin xyz ="0 0 0.35" rpy ="0 0 0"/ > < geometry > < box size ="0.1 0.1 0.7" / > < material name =" red " > < color rgba ="0.5 0.0 0.0 1"/ > < joint name =" end_efector_joint " type =" fixed " > < origin xyz ="0 0 0.7" rpy ="1.57079632679 0 0"/ > < parent link =" link_1 "/ > < child link =" end_effector "/ > < link name =" end_effector " / >