The objective of this research is to build a six degrees of freedom parallel robot (stewart platform). This platform will be used to isolate the sensitive systems from vibrating bodies. It is planned to design two prototypes of this equipement, the first is with pieroelectric hard activators and the second is with electrodynamic voice coil activators. This idea of isolation has been verified by building a single DDF system with a soft activator. [The objective of this research is to build a six degrees of freedom parallel robot (stewart platform). This platform will be used to isolate the sensitive systems from vibrating bodies. It is planned to design two prototypes of this equipement, the first is with pieroelectric hard activators and the second is with electrodynamic voice coil activators. This idea of isolation has been verified by building a single DDF system with a soft activator.]