A camshaft assembly including a target wheel is manufactured using an assembly process in which the camshaft is formed from a hollow tube. A wireless network can therefore include multiple APs, each of which will automatically choose a channel such that channel usage is optimized. In addition, a method of fabricating a color filter of LCD panel is described. The tape is cut to the desired width for the chink that is to be sealed and is finished in a rolled configuration. An axially moveable actuator, preferably a packer cup, engages the sealing ring assembly to causes at least an expansion portion of the sealing rings to expand radially outwardly to seal the annular space and the sealing ring assembly to contact the uphole stop.