# DJI FlameWheel 450 + CUAV V5 nano Build

This topic provides full instructions for building the kit and configuring PX4 using _QGroundControl_.

Key information

- **Frame:** DJI F450
- **Flight controller:** [CUAV V5 nano](../flight_controller/cuav_v5_nano.md)
- **Assembly time (approx.):** 90 minutes (45 minutes for frame, 45 minutes autopilot installation/configuration)

![Finished setup](../../assets/airframes/multicopter/dji_f450_cuav_5nano/f450_cuav5_nano_complete.jpg)

## Bill of materials

The components needed for this build are:

- Flight controller: [CUAV V5 nano](https://store.cuav.net/shop/v5-nano/):
  - GPS: [CUAV NEO V2 GPS](https://store.cuav.net/index.php?id_product=97&id_product_attribute=0&rewrite=cuav-new-ublox-neo-m8n-gps-module-with-shell-stand-holder-for-flight-controller-gps-compass-for-pixhack-v5-plus-rc-parts-px4&controller=product&id_lang=1)
  - Power Module
- Frame: [DJI F450](https://www.amazon.com/Flame-Wheel-Basic-Quadcopter-Drone/dp/B00HNMVQHY)
- Propellers: [DJI Phantom Built-in Nut Upgrade Propellers 9.4x5](https://www.masterairscrew.com/products/dji-phantom-built-in-nut-upgrade-propellers-in-black-mr-9-4x5-prop-set-x4-phantom)
- Battery: [Turnigy High Capacity 5200mAh 3S 12C Lipo Pack w/XT60](https://hobbyking.com/en_us/turnigy-high-capacity-5200mah-3s-12c-multi-rotor-lipo-pack-w-xt60.html?___store=en_us)
- Telemetry: [Holybro Transceiver Telemetry Radio V3](../telemetry/holybro_sik_radio.md)
- RC Receiver: [FrSky D4R-II 2.4G 4CH ACCST Telemetry Receiver](https://www.banggood.com/FrSky-D4R-II-2_4G-4CH-ACCST-Telemetry-Receiver-for-RC-Drone-FPV-Racing-p-929069.html?cur_warehouse=GWTR)
- Motors: [DJI E305 2312E Motor (960kv,CW)](https://www.amazon.com/DJI-E305-2312E-Motor-960kv/dp/B072MBMCZN)
- ESC: Hobbywing XRotor 20A APAC Brushless ESC 3-4S For RC Multicopters

In addition, we used an FrSky Taranis controller.
You will also need zip ties, double-sided tape, a soldering iron.

The image below shows both frame and electronic components.

![All components used in this build](../../assets/airframes/multicopter/dji_f450_cuav_5nano/all_components.jpg)

## 硬件

### 框架

This section lists all hardware for the frame.

| 描述                                                                | Quantity |
| ----------------------------------------------------------------- | -------- |
| DJI F450 Bottom plate                                             | 1        |
| DJI F450 Top plate                                                | 1        |
| DJI F450 legs with landing gear                                   | 4        |
| M3\*8 screws                                                      | 18       |
| M2 5\*6 screws                                                    | 24       |
| Velcro Battery Strap                                              | 1        |
| DJI Phantom Built-in Nut Upgrade Propellers 9.4x5 | 1        |

![F450 frame components](../../assets/airframes/multicopter/dji_f450_cuav_5nano/f450_frame_components.png)

### CUAV v5 nano Package

This section lists the components in the CUAV v5 nano package.

| 描述                                          | Quantity (Default Package) | Quantity (+GPS Package) |
| ------------------------------------------- | --------------------------------------------- | ------------------------------------------ |
| V5 nano flight controller                   | 1                                             | 1                                          |
| DuPont Cable                                | 2                                             | 2                                          |
| I2C/CAN Cable                               | 2                                             | 2                                          |
| ADC 6.6 Cable               | 2                                             | 2                                          |
| SBUS Signal Cable                           | 1                                             | 1                                          |
| IRSSI Cable                                 | 1                                             | 1                                          |
| DSM Signal Cable                            | 1                                             | 1                                          |
| ADC 3.3 Cable               | 1                                             | 1                                          |
| Debug Cable                                 | 1                                             | 1                                          |
| Safety Switch Cable                         | 1                                             | 1                                          |
| Voltage & Current Cable | 1                                             | 1                                          |
| PW-Link Module Cable                        | 1                                             | 1                                          |
| Power Module                                | 1                                             | 1                                          |
| SanDisk 16GB Memory Card                    | 1                                             | 1                                          |
| 12C Expansion Board                         | 1                                             | 1                                          |
| TTL Plate                                   | 1                                             | 1                                          |
| NEO GPS                                     | -                                             | 1                                          |
| GPS Bracket                                 | -                                             | 1                                          |

### Electronics

| 描述                                                                    | Quantity |
| --------------------------------------------------------------------- | -------- |
| CUAV V5 nano                                                          | 1        |
| CUAV NEO V2 GPS                                                       | 1        |
| Holibro Telemetry                                                     | 1        |
| FrSky D4R-II 2.4G 4CH ACCST Telemetry Receiver        | 1        |
| DJI E305 2312E Motor (800kv,CW)                    | 4        |
| Hobbywing XRotor 20A APAC Brushless ESC                               | 4        |
| Power Module(Included in the CUAV V5 nano package) | 1        |
| Turnigy High Capacity 5200mAh 3S 12C Lipo Pack w/XT60                 | 1        |

### Tools needed

The following tools are used in this assembly:

- 2.0mm Hex screwdriver
- 3mm Phillips screwdriver
- Wire cutters
- Precision tweezers
- Soldering iron

![Required tools](../../assets/airframes/multicopter/dji_f450_cuav_5nano/required_tools.jpg)

## 组装

Estimated time to assemble is approximately 90 minutes (about 45 minutes for the frame and 45 minutes installing the autopilot and configuring the airframe.

1. Attach the 4 arms to the bottom plate using the provided screws.

  ![Arms to bottom plate](../../assets/airframes/multicopter/dji_f450_cuav_5nano/1_attach_arms_bottom_plate.jpg)

2. Solder ESC (Electronic Speed Controller) to the board, positive (red) and negative (black).

  ![Solder ESCs](../../assets/airframes/multicopter/dji_f450_cuav_5nano/2_solder_esc.jpg)

3. Solder the Power Module, positive (red) and negative (black).

  ![Solder power module](../../assets/airframes/multicopter/dji_f450_cuav_5nano/3_solder_power_module.jpg)

4. Plug in the motors to the ESCs according to their positions.

  ![Plug in motors](../../assets/airframes/multicopter/dji_f450_cuav_5nano/4_plug_in_motors.jpg)

5. Attach the motors to the corresponding arms.

  ![Attach motors to arms (white)](../../assets/airframes/multicopter/dji_f450_cuav_5nano/5a_attach_motors_to_arms.jpg)
  ![Attach motors to arms (red)](../../assets/airframes/multicopter/dji_f450_cuav_5nano/5b_attach_motors_to_arms.jpg)

6. Add the top board (screw into the top of the legs).

  ![Add top board](../../assets/airframes/multicopter/dji_f450_cuav_5nano/6_add_top_board.jpg)

7. Add damping foam to the _CUAV V5 nano_ flight controller.

  ![Damping foam](../../assets/airframes/multicopter/dji_f450_cuav_5nano/7a_attach_cuav5nano.jpg)
  ![Damping foam](../../assets/airframes/multicopter/dji_f450_cuav_5nano/7b_attach_cuav5nano.jpg)

8. Attach the FrSky receiver to the bottom board with double-sided tape.

  ![Attach FrSky receiver with double-sided tape](../../assets/airframes/multicopter/dji_f450_cuav_5nano/8_attach_frsky.jpg)

9. Attach the telemetry module to the vehicle’s bottom board using double-sided tape.

  ![Attach telemetry radio](../../assets/airframes/multicopter/dji_f450_cuav_5nano/9a_telemtry_radio.jpg)
  ![Attach telemetry radio](../../assets/airframes/multicopter/dji_f450_cuav_5nano/9b_telemtry_radio.jpg)

10. Put the aluminium standoffs on the button plate and attach GPS.

  ![Aluminium standoffs](../../assets/airframes/multicopter/dji_f450_cuav_5nano/10_aluminium_standoffs.jpg)

11. Plug in Telemetry (`TELEM1`), GPS module (`GPS/SAFETY`), RC receiver (`RC`), all 4 ESC’s (`M1-M4`), and the power module (`Power1`) into the flight controller.
  ![Attach peripherals to flight controller](../../assets/airframes/multicopter/dji_f450_cuav_5nano/12_fc_attach_periperhals.jpg)

  ::: info
  The motor order is defined in the [Airframe Reference > Quadrotor x](../airframes/airframe_reference.md#quadrotor-x)

:::

设置完成！
The final build is shown below:

![Finished Setup](../../assets/airframes/multicopter/dji_f450_cuav_5nano/f450_cuav5_nano_complete.jpg)

## PX4 配置

_QGroundControl_ is used to install the PX4 autopilot and configure/tune it for the frame.
[Download and install](https://docs.qgroundcontrol.com/master/en/qgc-user-guide/getting_started/download_and_install.html) _QGroundControl_ for your platform.

:::tip
Full instructions for installing and configuring PX4 can be found in [Basic Configuration](../config/index.md).
:::

First update the firmware, airframe, geometry and outputs:

- [Firmware](../config/firmware.md)

- [Airframe](../config/airframe.md)

  ::: info
  You will need to select the _Generic Quadcopter_ airframe (**Quadrotor x > Generic Quadcopter**).

  ![QGroundControl - Select Generic Quadcopter](../../assets/airframes/multicopter/dji_f450_cuav_5nano/qgc_airframe_generic_quadx.png)

:::

- [Actuators](../config/actuators.md)
  - Update the vehicle geometry to match the frame.
  - Assign actuator functions to outputs to match your wiring.
  - Test the configuration using the sliders.

Then perform the mandatory setup/calibration:

- [Sensor Orientation](../config/flight_controller_orientation.md)
- [Compass](../config/compass.md)
- [Accelerometer](../config/accelerometer.md)
- [Level Horizon Calibration](../config/level_horizon_calibration.md)
- [Radio Setup](../config/radio.md)
- [Flight Modes](../config/flight_mode.md)

  ::: info
  For this build we set up modes _Stabilized_, _Altitude_ and _Position_ on a three-way switch on the receiver (mapped to a single channel - 5).
  This is the recommended minimal set of modes for beginners.

:::

Ideally you should also do:

- [ESC Calibration](../advanced_config/esc_calibration.md)
- [Battery Estimation Tuning](../config/battery.md)
- [Safety](../config/safety.md)

## 调试

Airframe selection sets _default_ autopilot parameters for the frame.
These may be good enough to fly with, but you should tune each frame build.

For instructions on how, start from [Autotune](../config/autotune_mc.md).

## 视频

<lite-youtube videoid="b0bKNdDqVHw" title="CUAV Nano"/>

## Acknowledgments

This build log was provided by the Dronecode Test Flight Team.
