Abstract: The disclosure provides a rod-less cylinder, device adapted to longitudinally displace loads, said device comprising a shaft, a nut confined to move longitudinally within the shaft, a slider circumscribing said shaft and coupled to said nut, a drive adapted to displace said nut within said shaft, and a sensing means adapted to affect a signal sent via wireless means towards said drive.

Abstract: The disclosure provides an encoding device comprising a reflector, a rotating disk having at least one aperture; and an optical unit comprising a light emitter and a light detector. Said disk being positioned between said reflector and said optical unit whereby rotation of said disk causes the movement of said at least one aperture in an alternating manner into a path of said light, such that said path is periodically interrupted and reestablished.

Abstract: The disclosure provides a rod-less cylinder, device adapted to longitudinally displace loads, said device comprising a shaft, a nut confined to move longitudinally within the shaft, a slider circumscribing said shaft and coupled to said nut, a drive adapted to displace said nut within said shaft, and a sensing means adapted to affect a signal sent via wireless means towards said drive.

Abstract: A robotic manufacturing unit with automatic tool changer, including a stand defining a working space and accommodating a working surface, an output member adapted to controllably move in three-dimensional space supported above the stand, a tool-holding and changing member attached to the output member and adapted to clampingly retain shanks of carriers of tools, a tool tray adapted to accommodate a plurality of tools mounted on tool carriers and, in coordination with the tool holding and changing member, to move from a position of rest, in which the tray is located outside of the working space, to a position of tool pickup and return, in which the tray is substantially located within the working space. The tool-holding and changing member and the shanks fit into one another and have non-circular cross-sections uniquely and reproducibly defining, when the shanks are clampingly retained, the relative angular positions of the tool-holding and changing member and the shanks.