An encoder with a light emitted editing wheel comprises an editing wheel defines {TAIL ~ a wheel body} and {HEAD ~ a hole} in its middle portion 
An encoder with a light emitted editing wheel comprises an editing wheel defines { TAIL ~ a wheel body } and { HEAD ~ a hole } in its middle portion
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH