We investigated the use of a new haptic device called the DigiHaptic in a 3D steering task. Unlike other devices intended
to interact in 3D with one end-effector, the DigiHaptic has three levers that the user may handle simultaneously or not in
elastic mode to rate control objects. We compared it to the SpaceMouse – another elastic device – to evaluate the influence
that degrees of freedom (DOF) separation have in terms of accuracy (coordination and errors) and speed (time). The task consisted
of steering paths that required the use of two or three DOF simultaneously. We found that users performed faster on the SpaceMouse
but were less coordinated and accurate than on the DigiHaptic for the most complicated paths.