Abstract: [Problem to be Solved] There are provided a control apparatus, a control method, and a master-slave system. [Solution] A control apparatus includes: a detector that detects whether or not a master apparatus used for an operation of a slave apparatus is located at a movable range limit; and a controller that controls, on the basis of a detection result, a slave parameter related to control of the slave apparatus and an image parameter related to an image displayed on the basis of imaging.

Abstract: A spindle includes a housing including a first opening, a bearing housed in the housing, a main shaft rotatably supported by the bearing, a collet chuck in a first through hole defined in the main shaft to grip a machining tool and being movable in an axial direction of the main shaft, a draw bar connected to the collet chuck, and a cover covering the first opening and including a second through hole through which the main shaft is disposed. The main shaft and the cover are disposed at a distance from each other.

Abstract: A droplet deposition apparatus includes a standing wave generator including ultrasonic wave oscillators, a droplet supplier to supply a droplet, a workpiece retainer to retain a workpiece in a predetermined space, and a controller configured or programmed to execute causing the standing wave generator to form a standing wave in the space, causing the droplet supplier to supply the droplet to a node of the standing wave generated in the space, and bringing close to each other a predetermined position on the workpiece retained by the workpiece retainer and the node of the standing wave to which the droplet is supplied, to cause the droplet retained at the node of the standing wave to be deposited onto the workpiece.

Abstract: A spindle includes a housing, a bearing housed in the housing, a main shaft rotatably supported by the bearing, a collet chuck extending into a through hole of the main shaft to grip a machining tool and movable in an axial direction of the main shaft, a draw bar connected to the collet chuck, an air inlet above the bearing and through which air is introduced into the housing, an air passage defined in the housing such that the air introduced into the housing through the air inlet flows below the bearing, and an air outlet in the housing and below the bearing and through which the air flowing below the bearing is discharged out of the housing.

Abstract: A droplet deposition apparatus includes a standing wave generator including ultrasonic wave oscillators, a droplet supplier to supply a droplet, a workpiece retainer to retain a workpiece in a predetermined space, and a controller configured or programmed to execute causing the standing wave generator to form a standing wave in the space, causing the droplet supplier to supply the droplet to a node of the standing wave generated in the space, and bringing close to each other a predetermined position on the workpiece retained by the workpiece retainer and the node of the standing wave to which the droplet is supplied, to cause the droplet retained at the node of the standing wave to be deposited onto the workpiece.

Abstract: A three-dimensional printing device includes a base, a holder disposed above the base, a printing head fixed on the holder and including a nozzle configured to discharge a resin material, a stage disposed in the base below the printing head configured to hold the resin material discharged from the nozzle, and a stage moving mechanism configured to move the stage with five or more degrees of freedom.

Abstract: A three-dimensional printing device includes a base, a holder disposed above the base, a printing head fixed on the holder and including a nozzle configured to discharge a resin material, a stage disposed in the base below the printing head configured to hold the resin material discharged from the nozzle, and a stage moving mechanism configured to move the stage with five or more degrees of freedom.