Abstract: An endoscope device comprises a handle, a shaft projecting from the handle, a flexible tip coupled to the distal portion of the shaft; and first and second pull wires extending from the handle portion through the shaft portion and coupled to the flexible tip. The handle portion includes a control wheel assembly coupled to proximal ends of the first and second pull wires. The control wheel assembly comprises a control wheel having a disc-shaped body rotationally mounted within the handle and having an outer perimeter and a first surface and first and second pull wire troughs provided on the first surface for receiving the proximal ends of the first and second pull wires, respectively. Positioning of the first and second pull wires within the first and second pull wire troughs is performed independently to provide accurate tensioning of the first and second pull wires during assembly of the endoscope device.