Finishing the Head
Let's finish the assembly of the head by adding the remaining components and covers.
Keep in mind that the head is a bit more complex than the other parts of the robot, so take your time and follow the instructions carefully to make sure everything is properly installed and secured.
Wire the components to the Main Board
We'll start by wiring the components of the torso to the Main Board.
Plug the Motor Driver Main Connector
First, plug the Motor Driver Main Connector to the JST-PH 5-Pin connector on the Main Board with the 
Plug the Analog Reader Main Connector
Now, plug the Analog Reader Main Connector to the JST-PH 7-Pin connector on the Main Board with the 
Plug the IMU Main Connector
Connect the IMU to the Main Board by plugging the IMU Main Connector to the JST-PH 4-Pin connector on the Main Board with the 
Add the Universal Mount I2C Connector
Wire the Universal Mount I2C Connector by plugging it to the JST-PH 4-Pin connector on the Main Board with the 
Add the Universal Mount Power Connector
Then, do the same for the Universal Mount Power Connector by plugging it to the JST-PH 2-Pin connector on the Main Board with the 
Plug the Speaker Connector
Finally, plug the Speaker Connector to the little 2-Pin connector on the Main Board with the 
Check the wiring
At this point, it is a good idea to double-check all the wiring connections you have made so far :
- Make sure that all connectors are securely plugged and going all the way in.
- Make sure all connectors are plugged in the correct connector (match the icons on the PCB).
- Make sure that the wires are not pinched or under tension, and that they are not in contact with any screws or sharp edges.
Add the visor
If everything is properly wired, we can now add the visor to the head and start closing it up.
Here's what you'll need for this step:
| Ressource | Quantity |
|---|---|
Visor part | 1 |
M2.5 x 4mm screws | 2 |
Place the visor on the Bottom Cover
Place the visor on the Bottom Cover, and align the bottom holes of the visor with the holes of the bottom cover.
You might need to push the visor to the front of the Bottom-Cover part to make sure the holes are properly aligned.
Screw the visor in place
Now that the visor is properly aligned, screw it in place using two M2.5 x 4mm screws.
As for the other screws, tighten them until the visor is snug against the bottom cover, but not more to avoid damaging the parts.
Add the Top Cover
Last step to close this head for good ! We'll add the top cover to finish the head assembly.
For this step, you'll need:
| Ressource | Quantity |
|---|---|
Top-Cover part | 1 |
M2.5 x 4mm screws | 4 |
Slide the Top Cover from the front
Place the Top-Cover part on the top of the head by sliding it from the front of the robot towards the back.
Pay close attention to the sides of the Top-Cover part, and make sure the two ear motors fit in the cutouts on the sides of the top cover.
Screw the Top Cover
When all the holes of the top cover are properly aligned with the holes of the backplate and the visor, you can start screwing the top cover in place.
Use four M2.5 x 4mm screws to secure the top cover to the backplate and the visor. Don't screw them too tight to avoid damaging the parts :)
Verification
At this point, your head assembly should be complete ! Take a moment to admire your work and make sure everything looks good.
Check that all the screws are properly tightened, and that there are no large gaps between the parts.
Here's what your head should look like at this point:
If everything looks good, we can add the ears to the head before moving on to the legs !