clover/docs/en/assemble_4_2.md

# Clover 4 assembly

## Fasteners size

> **Hint** During assembly, screws and racks of various sizes are used, using fasteners of the wrong size can damage the copter.

<img src="../assets/assembling_clever4_2/mounts_size_en.png" width=500 class="zoom border">

## Frame Assembly

1. Align the 4 beams with the center deck, fix them with the M3x8 screws and nuts with a nylon insert.

    <div class="image-group">
        <img src="../assets/assembling_clever4_2/frame_1.png" width=300 class="zoom border">
        <img src="../assets/assembling_clever4_2/frame_2.png" width=300 class="zoom border">
    </div>

2. Install 2 20mm posts on the center holes in the main deck and fix them with the M3x8 screws.

    <img src="../assets/assembling_clever4_2/frame_3.png" width=300 class="zoom border center">

3. Install the stiffener hook into the groove in the beam.

    <img src="../assets/assembling_clever4_2/frame_4.png" width=300 class="zoom border center">

4. Press the stiffeners onto the main deck.

    <img src="../assets/assembling_clever4_2/frame_5.png" width=300 class="zoom border center">

5. Tighten the stiffeners with a small carbon deck.

    <img src="../assets/assembling_clever4_2/frame_6.png" width=300 class="zoom border center">

6. Install 4 6mm nylon posts and fix them with the M3x6 screws.

    <img src="../assets/assembling_clever4_2/frame_7.png" width=300 class="zoom border center">

## Installating motors

1. When installing motors, pay attention to the rotation scheme of the motors. The rotation marking on the motors must match the rotation pattern.

    <img id="prop_rotation" src="../assets/assembling_clever4/props_rotation.png" width=300 class="zoom border center">

2. Mount the motor on the corresponding holes in the beam using **M3x5 screws**.

    <div class="image-group">
        <img src="../assets/assembling_clever4_2/motor_1.png" width=300 class="zoom border">
        <img src="../assets/assembling_clever4_2/motor_2.png" width=300 class="zoom border">
    </div>

> **Caution** Make sure that the motors are secured with M3x5 screws, otherwise a short circuit between the windings may occur.

## Installing ESC and PDB

1. Connect the speed controllers (ESC) to the motors using the MR30 connectors and fasten them to the beams using clamps.

    <div class="image-group">
        <img src="../assets/assembling_clever4_2/esc_1.png" width=300 class="zoom border">
        <img src="../assets/assembling_clever4_2/esc_2.png" width=300 class="zoom border">
    </div>

2. Install the power distribution board (PDB) on the pre-mounted racks and secure it with 6mm racks. The power distribution board must be installed so that the power connection cable points toward the tail of the aircraft.

    <img src="../assets/assembling_clever4_2/pdb_1.png" width=300 class="zoom border center">

3. Connect the power outputs of the speed controllers to the power distribution board.

    <img src="../assets/assembling_clever4_2/pdb_2.png" width=300 class="zoom border center">

## Installing Flight Controller

Set *Clover 4* allows you to install various flight controllers, for example *COEX Pix* and *Pixracer*.

> **Caution** During installation the flight controller, pay attention to the arrow located on the board, it should be directed to the copter bow.

### COEX Pix

> **Hint** Before installing the damper struts, screw 2 layers of nylon nuts, for a stronger fix or bite off the excess thread using side cutters.

Install the damper struts, fix *COEX Pix* on them with nylon nuts.

<img src="../assets/assembling_clever4_2/coex_pix.png" width=300 class="zoom border center">

### Pixracer

1. Place the small deck on the racks and secure it with nylon nuts.

    <img src="../assets/assembling_clever4_2/pixracer_1.png" width=300 class="zoom border center">

2. Glue 3-4 layers of double-sided tape, glue it in the center of the small deck and install *Pixracer* on top.

    <img src="../assets/assembling_clever4_2/pixracer_2.png" width=300 class="zoom border center">

## Connect Flight Controller

1. Connect the speed controllers to the flight controller in accordance with the diagram.

    <img src="../assets/assembling_clever4_2/fc_connection_1.png" width=300 class="zoom border center">

2. Connect the power cable to the power distribution board(PDB) and the corresponding connector on the flight controller.

    <img src="../assets/assembling_clever4_2/fc_connection_2.png" width=300 class="zoom border center">

3. Install 40mm aluminum racks on the M3x12 screws.

<div class="image-group">
    <img src="../assets/assembling_clever4_2/fc_connection_3.png" width=300 class="zoom border">
    <img src="../assets/assembling_clever4_2/fc_connection_4.png" width=300 class="zoom border">
</div>

## Installing Raspberry Pi

1. Install the 20mm racks on the main deck, fix them with the M3x8 screws.

    <div class="image-group">
        <img src="../assets/assembling_clever4_2/fc_connection_5.png" width=300 class="zoom border">
        <img src="../assets/assembling_clever4_2/fc_connection_6.png" width=300 class="zoom border">
    </div>

2. On a mounting deck, install 6mm racks and 30mm racks, fasten them with the M3x6 and M3x12 bolts, respectively.

    <img src="../assets/assembling_clever4_2/raspberry_1.png" width=300 class="zoom border center">

3. Install the assembled mounting deck on the main deck and fix with the M3x8 screws.

    <img src="../assets/assembling_clever4_2/raspberry_2.png" width=300 class="zoom border center">

4. Install the *Raspberry Pi* circuit board and fix with nylon nuts.

    <img src="../assets/assembling_clever4_2/raspberry_3.png" width=300 class="zoom border center">

5. On the capture deck, install the rangefinder using self-locking nuts and M3x8 screws, and glue the radio using double-sided tape.

    <img src="../assets/assembling_clever4_2/raspberry_5.png" width=300 class="zoom border center">

6. Install 4 20mm racks and fix them with the M3x8 screws.

    <img src="../assets/assembling_clever4_2/raspberry_6.png" width=300 class="zoom border center">

7. Install the camera on the small mounting deck and fix it with 2 M2x5 self-tapping screws in the upper left and lower right corners.

    <img src="../assets/assembling_clever4_2/raspberry_7.png" width=300 class="zoom border center">

8. Install the camera module on the capture deck and fix with the M3x8 screws.

    <img src="../assets/assembling_clever4_2/raspberry_8.png" width=300 class="zoom border center">

9. Install the assembled pickup deck and fix with the M3x8 screws.

    <img src="../assets/assembling_clever4_2/raspberry_9.png" width=300 class="zoom border center">

10. Connect to the *Raspberry Pi* rangefinder and power cable.

    <img src="../assets/assembling_clever4_2/raspberry_10.png" width=300 class="zoom border center">

11. Connect the camera cable to *Raspberry Pi*.

    <img src="../assets/assembling_clever4_2/raspberry_11.png" width=300 class="zoom border center">

## Installing LED strip

1. Assemble the hoop for the LED strip by combining the lock on the ends.

    <img src="../assets/assembling_clever4_2/led_1.png" width=300 class="zoom border center">

2. Stick the LED strip on the hoop, for better fastening, pull it with 3-4 clamps.

    <img src="../assets/assembling_clever4_2/led_2.png" width=300 class="zoom border center">

3. Install the legs on the stiffening plate using self-locking nuts and M3x8 screws using only the extreme mounting holes. From below, between the plates of the legs, install a damper silicone ring.

    <img src="../assets/assembling_clever4_2/led_3.png" width=300 class="zoom border center">

4. Bend the legs back and install a hoop with LED strip in a special groove on them so that the connection cables exit from the tail side of the copter.

    <img src="../assets/assembling_clever4_2/led_4.png" width=300 class="zoom border center">

5. Behind fasten the legs with self-locking nuts and M3x8 screws.

    <img src="../assets/assembling_clever4_2/led_5.png" width=300 class="zoom border center">

6. Connect the LED strip power (red, black cables) to the short JST connector on the PDB.

    <img src="../assets/assembling_clever4_2/led_5.png" width=300 class="zoom border center">

7. Connect the signal output of the LED strip (white cable) to *Raspberry Ri*, to pin *GPIO 21*.

    <img src="../assets/assembling_clever4_2/led_6.png" width=300 class="zoom border center">

## Installing guard

1. Assemble the lower level of guard with 40mm racks and M3x12 screws.

    <img src="../assets/assembling_clever4_2/guard_1.png" width=300 class="zoom border center">

2. Assemble the top level of protection with the M3x12 screws.

    <img src="../assets/assembling_clever4_2/guard_2.png" width=300 class="zoom border center">

3. Install the mounting deck and fix it with M3x8 bolts.

    <img src="../assets/assembling_clever4_2/guard_3.png" width=300 class="zoom border center">

4. Establish protection and fix on beams by means of self-locking nuts and M3x8 screws.

    <img src="../assets/assembling_clever4_2/guard_4.png" width=300 class="zoom border center">

## Flight preparation

1. Install the battery strap and connect the flight controller to the *Raspberry Pi* using a USB cable.

    <div class="image-group">
        <img src="../assets/assembling_clever4_2/final_1.png" width=300 class="zoom border">
        <img src="../assets/assembling_clever4_2/final_2.png" width=300 class="zoom border">
    </div>

2. Install the propellers in accordance with the [directional diagram of the motors](#prop_rotation).

    <img src="../assets/assembling_clever4_2/final_3.png" width=300 class="zoom border center">

3. Install the battery.

    <img src="../assets/assembling_clever4_2/final_4.png" width=300 class="zoom border center">

> **Success** The drone is assembled, then make ["setup"](setup.md).