An equatorial mount having a base, a right ascension base, a right ascension shaft, a declination base, a declination shaft, and a mount-rotation mechanism, the declination base rotatable about a right ascension axis relative to the right ascension base, and the declination shaft rotatable about a declination axis relative to the declination axis, wherein the mount-rotation mechanism is engageable and disenagageable from one or the other of the right ascension shaft and the declination shaft, to apply torque between the declination base and that shaft when engaged and to permit relative rotation of the shaft and the declination base when disengaged.

A mounting assembly includes a mounting block. A first shaft is supported by the mounting block and movable about a first rotational axis and a first extension axis with respect to the mounting block. A second shaft is coupled to the first shaft and movable about a second rotational axis.

A head mount includes a seat body on which a mounting cavity is provided; a conversion structure, and having two connection ends of different specifications; the conversion structure is reversibly disposed in the installation cavity, and the selected connection end protrudes out of the installation cavity by flipping the conversion structure, and is adapted to The photographing device is connected, and the seat body has a limiting structure for preventing the switching mechanism from being turned over after the photographing device is connected to the connecting end. By setting the conversion structure, when it is necessary to connect with the shooting device of different interfaces, the required connection end may be flipped outside the installation cavity to connect with the corresponding shooting device as required. The invention may realize the conversion of different connection ends by simply flipping the conversion structure, thereby realizing the connection with the different interface photographing devices, the operation is simple and quick, and the connection end is not required to be disassembled, and the connection end is not easily lost.

A foldable handheld gimbal includes a handle, a first motor arranged at the handle and configured to drive a load to rotate around a first motor shaft, a first connection bracket, a second motor configured to drive the load to rotate around a second motor shaft, a second connection bracket, a third motor configured to drive the load to rotate around a third motor shaft, a carrier structure configured to carry the load, a first hinge structure, and a second hinge structure. The handle includes a top, a bottom, and a side wall arranged between the top and the bottom. The first connection bracket and the second motor respectively rotate around the first hinge structure and the second hinge structure to switch the handheld gimbal among a plurality of states. The first motor and the second motor are respectively arranged at the top and the bottom of the handle.

A head mount includes a seat body on which a mounting cavity is provided; a conversion structure, and having two connection ends of different specifications; the conversion structure is reversibly disposed in the installation cavity, and the selected connection end protrudes out of the installation cavity by flipping the conversion structure, and is adapted to The photographing device is connected, and the seat body has a limiting structure for preventing the switching mechanism from being turned over after the photographing device is connected to the connecting end. By setting the conversion structure, when it is necessary to connect with the shooting device of different interfaces, the required connection end may be flipped outside the installation cavity to connect with the corresponding shooting device as required. The invention may realize the conversion of different connection ends by simply flipping the conversion structure, thereby realizing the connection with the different interface photographing devices, the operation is simple and quick, and the connection end is not required to be disassembled, and the connection end is not easily lost.

A facility for automated modelling of the cutting process for a particular material to be cut by a beam cutting tool, such as a waterjet cutting system, from empirical data to predict aspects of the waterjet's effect on the workpiece across a range of material thicknesses, across a range of cutting geometries, and across a range of cutting quality levels, all of which may be broader than, and independent of the actual requirements for a target workpiece, is described.

A handheld gimbal includes a handheld structure and a gimbal body operably coupled with the handheld structure. The handheld structure includes a handheld body having at least one functional button, and a gripping structure extending from a bottom portion of the handheld body away from the handheld body. The gimbal body is operably coupled with a side of the handheld body.

A facility for automated modelling of the cutting process for a particular material to be cut by a beam cutting tool, such as a waterjet cutting system, from empirical data to predict aspects of the waterjet's effect on the workpiece across a range of material thicknesses, across a range of cutting geometries, and across a range of cutting quality levels, all of which may be broader than, and independent of the actual requirements for a target workpiece, is described.

A facility for automated modelling of the cutting process for a particular material to be cut by a beam cutting tool, such as a waterjet cutting system, from empirical data to predict aspects of the waterjet's effect on the workpiece across a range of material thicknesses, across a range of cutting geometries, and across a range of cutting quality levels, all of which may be broader than, and independent of the actual requirements for a target workpiece, is described.

Described is a system for supporting a camera, said camera being fixed on an articulated head which allows the homogeneous movement along axes Z.sub.pan and Y.sub.tilt, said articulated head being equipped with variable fluid dampening means and counterbalancing means, for annulling the weight of the camera when rotated about the Y.sub.tilt axis, aid system being equipped with a structure for the rotation of the camera about a third X.sub.roll axis, said structure being interposed between said head, above the same, and said camera, below the same.