Electronics

	Voltage regulator for the laptop. The regulator transforms the 26Vdc input voltage to 15Vdc.
	Side view.
	The generated heat is removed with the help of a small fan.
	View of the stepper motors control board.
	The focus motor control board. The motor speed is configurable from the handpad: Automatic three speeds mode: Hold the focus button and at a 2 seconds interval, speed will go from slow, to medium, to fast. (This was better than continuously incremental speed). Single speed mode: Choose any of the 16 speeds available.
	The wires pass from the rocker to the primary box.