Course Content
C7: Drone Technology – Assembly Focus

Step 1: Frame Setup

Lay out all the frame parts (arms, base plate, top plate).
Use screws to secure them firmly using a screwdriver.
Tip: The arms should be equal in length and aligned straight.

Step 2: Mount the Motors

Attach each motor to the end of the arms using screws.
There are usually 4 motors in a quadcopter.
Note: Motors have two types — clockwise (CW) and counter-clockwise (CCW). Match them to the correct arm.

Step 3: Install the ESCs

Connect one ESC to each motor.
Each ESC has 3 motor wires and 2 power wires (red = positive, black = negative).
Function: ESCs control how fast the motor spins, based on commands from the flight controller.

Step 4: Power Distribution

Attach all ESC power wires to the Power Distribution Board (PDB) or directly to the battery connector.
Ensure the polarity is correct (red to red, black to black).

Step 5: Mount the Flight Controller

Place the flight controller at the center of the frame — it must be perfectly level.
Connect the ESC signal wires and the receiver.
Tip: Use anti-vibration pads to avoid shaky flight data.

Step 6: Attach the Propellers

Mount the propellers on top of each motor.
Match direction:

  • Two propellers spin clockwise (CW)

  • Two spin counter-clockwise (CCW)
    This ensures stability during flight.

Step 7: Connect the Battery

Attach the battery using the provided strap.
Check all wiring for tightness and correct polarity.

Step 8: Calibration and Test (Simulation or Supervised)

If you’re using:

  • Simulator: Use tools like DroneBlocks or Tinkercad Circuits to test motor directions and virtual balance.

Physical Kit: With teacher supervision, test rotation of each motor at low throttle.

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