A device, comprising: a display coupled to a first end of an arm; and, a base mount rotatably secured to a hollow shaft that is fixed to a second end of the arm so that when the arm rotates the hollow shaft rotates, the hollow shaft defining an axis of rotation of the arm relative to the base mount, the base mount further comprising first and second opposing axial cam elements positioned on the hollow shaft and a spring positioned on the hollow shaft, the first and second opposing axial cam elements oriented relative to one another such that rotation of the arm toward the base mount causes the first and second opposing axial cam elements to move away from one another along the hollow shaft thereby compressing the spring, wherein: the first axial cam element comprises a first body and a first axial cam surface; the second axial cam element comprises a second body and a second axial cam surface; the second axial cam surface is biased against the first axial cam surface by the spring; and the cam elements in combination with the spring create torque on the arm to counter-balance torque imparted on the arm by the display as the arm is rotated of the base mount wherein: the second axial cam element moves along the axis relative to the first axial cam element; the hollow shaft is keyed parallel to the axis, and the second axial cam element includes a keyway that allows movement of the second axial cam element along the key parallel to the axis but prevents rotation of the second axial cam element around the axis; and the first axial cam element is non-rotationally contained within a bore of the base mount. a display coupled to a first end of an arm; and, a base mount rotatably secured to a hollow shaft that is fixed to a second end of the arm so that when the arm rotates the hollow shaft rotates, the hollow shaft defining an axis of rotation of the arm relative to the base mount, the base mount further comprising first and second opposing axial cam elements positioned on the hollow shaft and a spring positioned on the hollow shaft, the first and second opposing axial cam elements oriented relative to one another such that rotation of the arm toward the base mount causes the first and second opposing axial cam elements to move away from one another along the hollow shaft thereby compressing the spring, wherein: the first axial cam element comprises a first body and a first axial cam surface; the second axial cam element comprises a second body and a second axial cam surface; the second axial cam surface is biased against the first axial cam surface by the spring; and the cam elements in combination with the spring create torque on the arm to counter-balance torque imparted on the arm by the display as the arm is rotated of the base mount wherein: the second axial cam element moves along the axis relative to the first axial cam element; the hollow shaft is keyed parallel to the axis, and the second axial cam element includes a keyway that allows movement of the second axial cam element along the key parallel to the axis but prevents rotation of the second axial cam element around the axis; and the first axial cam element is non-rotationally contained within a bore of the base mount. the first axial cam element comprises a first body and a first axial cam surface; the second axial cam element comprises a second body and a second axial cam surface; the second axial cam surface is biased against the first axial cam surface by the spring; and the cam elements in combination with the spring create torque on the arm to counter-balance torque imparted on the arm by the display as the arm is rotated of the base mount wherein: the second axial cam element moves along the axis relative to the first axial cam element; the hollow shaft is keyed parallel to the axis, and the second axial cam element includes a keyway that allows movement of the second axial cam element along the key parallel to the axis but prevents rotation of the second axial cam element around the axis; and the first axial cam element is non-rotationally contained within a bore of the base mount. the second axial cam element moves along the axis relative to the first axial cam element; the hollow shaft is keyed parallel to the axis, and the second axial cam element includes a keyway that allows movement of the second axial cam element along the key parallel to the axis but prevents rotation of the second axial cam element around the axis; and the first axial cam element is non-rotationally contained within a bore of the base mount.