Maya ikMCsolver Quesiton

Hi!

I’m trying to create a 6 axis robot IK solver using bones and Maya’s “multi chain” IK solver.
Each bone is setup to constrain movement to one axis. This design I’m copying from a KUKA robot.

I attach the ikMCsolver and the translation works great. But how do I get this rig to take into account the rotation of the IK handle as well?