Abstract: A linear feedback positioning module is provided with a coupling and a drive at one side of a platform having a lead screw, a movable assembly combined on the lead screw and a feedback assembly. The feedback assembly includes a magnetic scale cooperating with a read head. The magnetic scale is combined on the platform and located along the lead screw to cooperate with the lead screw. The linear feedback positioning module is further used with a backend control assembly. By such arrangements, the feedback assembly can correct error at any moment to improve the process and product accuracy and increase the production efficiency and product competitiveness.

Abstract: An extendable gantry comprises a base and an extendable transverse bridge mounted on the base. The extendable transverse bridge has an axial length greater than a width of the base.

Abstract: A folding keyboard-and-mouse carrying board is for being assembled beside a recess formed on a machine body of an electronic device. The folding keyboard-and-mouse carrying board comprises a board connected with the machine body through a link unit so as to allow the recess to be opened or closed thereby. The board has a first surface facing the recess and a second surface at a reverse side of the board with respect to the first surface. A keyboard-positioning unit and a mouse positioning unit are provided at the first surface of the board. A first board-positioning unit positions the board at a retracted position; and a second board-positioning unit positions the board at an expanded position.

Abstract: A rotatable gantry comprises an extendable transverse bridge that is horizontally rotatable and capable of changing its extending direction with respect to a base of the rotatable gantry so that the extendable transverse bridge can be rotated and contained within a width of the base of the rotatable gantry for convenient transportation.

Abstract: An electronic box-drawer with at least one auxiliary supporter is characterized in the auxiliary supporter that is capable of pivoting with respect to a drawer body of the electronic box-drawer between a retracted position and a supporting position so that the electronic box-drawer is enabled to provide larger operational space and bear heavy loads.

Abstract: An extendable gantry comprises a base and an extendable transverse bridge mounted on the base. The extendable transverse bridge has an axial length greater than a width of the base.

Abstract: A linear feedback positioning module is provided with a coupling and a drive at one side of a platform having a lead screw, a movable assembly combined on the lead screw and a feedback assembly. The feedback assembly includes a magnetic scale cooperating with a read head. The magnetic scale is combined on the platform and located along the lead screw to cooperate with the lead screw. The linear feedback positioning module is further used with a backend control assembly. By such arrangements, the feedback assembly can correct error at any moment to improve the process and product accuracy and increase the production efficiency and product competitiveness.

Abstract: A pneumatic cleaning module for a magnetic ruler of a position measurement system is combined with a displacement transducer of the position measurement system by a screw so that when the displacement transducer moves along the magnetic ruler, the pneumatic cleaning module implements a high-pressure air to remove swarf, dirt and impurities from a surface of the magnetic ruler.

Abstract: An air floating linear motor comprises a fixed part and a movable part. The movable part floats above the fixed part. The movable moves with respect to the fixed part by the magnetic interaction. The fixed part is disposed with a receiving portion for assembling an external device such as a position feedback device or a travel protection device, etc. Therefore, the air floating linear motor is much more simplified and convenient in fabrication and installation.