A noval 6-(P-2P-S) parallel macro manipulator is put forward
which is used as the macro system of the cutting equipment for chromosome
with the characters of some movement decoupling on the orthogonal posture. Based on the design feature
the position problem and the kinematic transmition performance of the parallel macro manipulator are analyzed. The velocity transmition evaluation indicators is defined. Considering the structure constraints
the distribution of speed transformation evaluation indicators in orientation workspace is analyzed
which can be used as the theoretical foundation of application.