This is the place to learn how to assemble your QL25 kit, perform setup in QGroundControl, and prepare for flight. Let's get started.
Fully assembled QL25 drone
There may be extra fasteners in your kit. All the hardware needed is shown in the assembly steps.
- WiFi Internet Connection
- A Mac, Windows, or Linux computer on the same network as your WiFi.
- Luci compatible RC Transmitter and Receiver. See Choosing a Radio Controller.
- LiPo battery charger and its required accessories.
- Charger for your RC Transmitter if it has a rechargeable battery.
- 2 Micro-USB to USB-A cables. Recommended length 3ft or more.
- 2 microSD cards
- Diagonal pliers or some other cutting tool for zip ties.
- Extra LiPo battery
- Extra RC Transmitter batteries
- Extra zip ties
- Pen and paper
Keys to Success
- Read through each step thoroughly.
- Keep the orientation of the aircraft in mind when performing each step.
Start by grabbing the Main Frame, the largest item in your kit. Refer to the image below and make a mental note of the Front, Rear, Left, and Right indicators.
Aircraft Orientation - Top View
Fasten the M3 6mm Screws (Black) with the 2.5mm hex key. These are the largest black screws in the kit.
Standoffs can be tightened by hand but be sure to tighten firmly.
Flip over the frame and place the Power Distribution Assembly on the 12mm M/F Standoffs. The ESCs will be sandwiched between the Power Distribution Board and the frame.
- Keep PWM control lines to the RIGHT of the aircraft.
- Power tail must point toward the REAR of the aircraft.
Position the wires of the Power Distribution Assembly so that they will not be pinched.
The LED Board Screws are the smallest black screws in the kit. Tighten with the 1.5mm hex key.
The screws will have some resistance as the holes are not threaded.
Attach Luci to top of 14mm M/F Standoffs.
- Arrow symbol on Luci should point to front of aircraft.
- Fasten down with 20mm Standoffs.
The small arrow on the top surface of Luci must be point toward the front of the aircraft.
Keep fuzzy velcro side on outside.
The Motor Kit comes with 2 clockwise motors (black caps) and 2 counter-clockwise motors (red caps). The motors must be placed exactly as shown in diagram below.
- Tighten motor screws with a 1.5mm hex key.
- Mount to the cross shaped hole instead of the individual outside holes.
- Make sure you can see all the holes before inserting any screws.
Use the shortest motor screws.
There are three screw sizes that come with the Motor Kit. Use the shortest screw size to avoid damaging motors.
Each ESC (Electronic speed controller) on the Power Distribution Assembly has 3 motor lines and a 3 pin PWM control line.
Join the three wires from each motor to the motor lines on the closest ESC. The position of the three wires does not matter in this step. Later we will test if the motors are spinning the correct direction.
PWM Line Order
Reference the diagram below for motor numbering pattern
Each PWM control line must connect its corresponding PWM OUTPUT pins on Luci.
Example: Motor 1 PWM control line to PWM OUTPUT 1
The orientation of the PWM lines is also critical. The brown wire of each connector must be closest to the surface of the Luci board. (Yellow up. Brown down.)
Connect to the
RC INPUT pins on Luci. Be sure to match the S/+/- lines with the SIG/+/- lines on the receiver.
DSMX connector on Luci.
Now it is time to power up your drone so you can test the motor direction. Strap in your battery and connect it as shown in the images below.
- Strap the battery down firmly.
- When disconnecting the battery do not pull on the wires. Pull from the connector itself.
- Do not leave a powered drone unattended.
- When you are done using the battery reattach the protective rubber cap to prevent accidental shorting.
Follow the Luci Powered Drone tutorial to configure Luci, link Luci to a Dronesmith Cloud account, and create a wireless connection between Luci and ground control software on a PC. Return here to complete setup.
Now that you are broadcasting MAVLink messages to you PC, follow the QGroundControl Setup guide to bind your transmitter, perform sensor and RC calibration, and test motor spin direction. Return here to complete setup.
Spinning propellers are dangerous.
Your QL25 Kit contains a carbon fiber propeller set and a plastic propeller set. We recommend using the plastic propellers unless you are an experienced pilot.
In a propeller set there are two clockwise propellers and two counter-clockwise propellers. Attach them according to the diagram below.
Identifying if a propeller is CW or CCW
Start by finding the top of the propeller. The top has a convex surface and the bottom has a concave surface.
On a clockwise propeller, the leading (raised) edges of the propeller should be moving forward in the direction of rotation when the propeller is spinning clockwise. Likewise, on a counter-clockwise propeller the leading edges should be moving forward in the direction of rotation when the propeller is spinning counter-clockwise.
The leading edge on a CCW propeller
To secure the propellers tighten the propeller caps down on the propellers. It is helpful to insert a small tool through the propeller cap when tightening.
Whoo! You have an assembled drone. Please read though this guide before you attempt to manually fly your QL25.