An actuator is connected with the base to move {TAIL ~ the holder} from the initial position to {HEAD ~ the cutting position} 
An actuator is connected with the base to move { TAIL ~ the holder } from the initial position to { HEAD ~ the cutting position }
OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD