Embodiments of an invention for secure processing environment measurement and attestation are disclosed. A drive system includes a seal-less pneumatic engine which acts to drive the transport tray in repeated, rectilinear fashion to advance materials supported on the transport tray in the direction of the length of the tray. A closure associated with the enclosure is movable between opened and closed positions wherein the thawing chamber is accessible through the access opening when in the opened position and the closure covers the access opening when in the closed position. Moreover, a computing device can generate and output data corresponding to the beam reflected by the heliostat based on the measured values indicative of the characteristic of the beam received from the sensors in the array. In this way it is ensured that complete filling of the adjacent sheets of metal material with fibre-reinforced resin takes place even in bends.