Diffraction Limited MD1 Benutzerhandbuch
Hardware Installation
9
Screw Mount Details
Next place a nut part-way down each screw. Since the fiberglass may be slightly
uneven, adjust the nuts so they are in a plane; i.e. when the board is placed on
top, each corner must be evenly supported by a nut. Lay the board in place on
top of the nuts, and fasten down using additional nuts.
Optical Motor Sensor
Once the board is installed, the optical sensor must be installed.
The optical sensor works by detecting a dark patch on the rotating shaft just
under the gear. To create a target for the sensor, approximately half the shaft
must be blackened as shown below – this is important for correct operation of the
detector. The simplest way to do this is to use a cut piece of black electrical tape.
The optical sensor works by detecting a dark patch on the rotating shaft just
under the gear. To create a target for the sensor, approximately half the shaft
must be blackened as shown below – this is important for correct operation of the
detector. The simplest way to do this is to use a cut piece of black electrical tape.
Sensor Target
The sensor must be positioned viewing this target from the side, as shown below.
The sensor must be mounted in a position where it can view the target, yet will
not obstruct any of the mechanical components.