General Information:

STEP:

Want to watch the build video? Click Here:
https://www.youtube.com/watch?v=u70eVZwZqOs

STEP:

This step is not required if you printed C1A. If you printed C1B, insert the laser-etched faceplates into the printed part. Remove the protective backing film from the parts before the fitment.

STEP:

Insert the M4 brass thread inserts into the stepper mount C6 using a heated soldering iron.

STEP:

Turn over C6, and install a further Qty 3, M4 threaded heat inserts into the pillars.

STEP:

Install QTY 2, M3 brass inserts into the shaft adapter C9.

STEP:

Install QTY 2, M3 (5mm OD/5mm Length) brass thread inserts into the spacer body C5. These inserts are the same size as the M4. (5 mm OD/5mm Length). Make sure you use the M3 version for the centre holes.)

STEP:

Install a further QTY 4, M4 thread inserts into the outer holes.

STEP:

Turn the unit over and install four M4 brass thread inserts on the opposite side.

STEP:

Place the 12v LED strip around the inner circumference of the spacer body. Cut to length, remove the adhesive tape backing, and apply the tape to the part.

STEP:

Place the PCB onto the spacer body with the front side facing the part. The front side has a picture of the seven segments on it.

STEP:

Secure the PCB with QTY 4, M4 x 6mm screws.

STEP:

Place the 4-digit, 7-segment displays into the PCB from the front side.

STEP:

Place the decal plate over the top of the assembly.

STEP:

Turn the whole unit over and allow the displays to fall against the decal plate on the table. If required, gently push on the display pins to ensure they are seated correctly against the decal plate.

STEP:

Once happy with the position. Solder the legs of the displays to the board.

STEP:

To install the LEDs, remove the decal plate and place nine warm white LEDs with a diameter of 3mm onto the PCB. It is crucial to pay close attention to the correct orientation of the LED's anode and cathode legs. Make sure to align the LED's flat spot with the flat line printed on the board for accurate placement.

STEP:

Once again, place the decal plate on top of the unit.

STEP:

Turn the assembly over so the decal plate is against the tabletop. Allow the LEDs to fall into their allotted alignment holes. Solder in place once you are happy with the LED's position.

STEP:

Install the MAX7219CNG chip into the front face of the PCB. Flip the unit over and solder. Please note that the half-moon on the top of the chip is oriented to match the half-moon printed on the PCB.

STEP:

Install the QTY 7, 6x6x7mm tactile switches around the circumference. Ensure they are flat and straight on the PCB, and then solder them in place.

STEP:

Install the QTY 3, 120 Ohm resistors onto the PCB. The orientation of the resistor is unimportant.

STEP:

Install the 12K Ohm resistor. Depending on how bright you want the LED displays, this value can range from 9 to 20K.

STEP:

Install the 0.1uF ceramic capacitor. The polarity orientation is unimportant.

STEP:

Instal the 10uF electrolytic capacitor. Please ensure the negative leg matches that of the PCB!

STEP:

Install the male header pins on the backside of the board

STEP:

Install the 28BYJ stepper onto the mount and secure it with QTY 2, M4 x 6mm screws.

STEP:

Turn the unit over, and install the ultra mini micro switch with a roller. Secure it in place with QTY 2, M2 x 8mm screws. Pay special attention to the correct orientation of the microswitch, as shown in the picture. This would also be an excellent time to attach the two wires to the COM and NO terminals.

STEP:

Place the adapter shaft onto the microswitch. Secure it with the lower m3 grub screw. Two Options of the adapter are available. C9A uses M3 brass inserts before the grub screws are inserted directly into the part. C9 utilises grub screws directly in the 3d printed part.

STEP:

Place the 3mm x 46mm shaft into the adapter.

STEP:

Place the driver mount on top of the stepper mount. Secure it with QTY 2, m4 x 8mm dome screws and QTY 1, M4 x 6mm countersunk screw.

STEP:

Slide the driver board into the mount from the right.

STEP:

Place the unit onto the PCB assembly, ensuring the needle shaft is inserted through the PCB centre orifice.

STEP:

Secure the stepper assembly to the PCB using QTY3, M4 x 8mm screws.

STEP:

Place the seven chrono buttons on the tactile button shafts. These should be a loose fit. This allows for minor mis alignment errors in the build.

STEP:

Place the decal plate onto the clock assembly

STEP:

Place the adapter plate onto the assembly.

STEP:

To attach the needle, place it onto the shaft and consider using a strong adhesive like super glue for better adhesion.

STEP:

Place the 2mm perspex lens into the recess.

STEP:

Place the completed faceplate body onto the assembly

STEP:

Secure the assembly with QTY 2, m3 x 20mm screws.

STEP:

The assembly is fully finished. To attach it to the MIP, there are four M4 holes located in the outer corners. It is essential to use screws of the appropriate length to secure the unit in place. However, make sure that the screws used for attachment are not too long, as they share the same orifice as the PCB screws.

STEP:

The wiring diagram can be found here: https://031b6b45-11f6-46a7-ab8e-17be9aef4dad.usrfiles.com/ugd/031b6b_df5ee494d15b415e92add0ad2684da78.pdf

STEP:

For PMDG Programming, please visit the Mobiflight Discord channel:
https://discord.com/channels/608690978081210392/1111601367346319380/1158884485304172604
The Mobiflight MCC file can be downloaded here, saving you hours of work!
Special thank you to Jamie Leon.
The file can be downloaded here:
https://031b6b45-11f6-46a7-ab8e-17be9aef4dad.usrfiles.com/archives/031b6b_84a1087729f94b2aa8e0357fb81ea77a.zip