To support a movable arm attached to a base and rotatable around a movable rotation point relative to the base, a force-balancing support comprises an arm attachment connectable to the movable arm and at least rotatable around a center of rotation of which a position is movable relative to the base attachment. The support is attachable to the base with a base attachment at a distance from the arm attachment. The support has a cantilever mechanism which transfers force exerted on the arm attachment by the movable arm, when coupled thereto, to the base attachment. The cantilever mechanism has a fixed end attached to the base attachment and a free, arm-side, cantilever end movable, e.g. by suitable flexing. The arm attachment is suspended with respect to the base attachment at the free end.
