Build The Falcon

This guide provides instruction for assembly of the Falcon Quadracopter. To simplify assembly, this kit uses an ARF carbon fiber xHeli frame pre-assembled with motor controllers, motor wiring, and brushless motors. It also uses a MultiWii flight controller.


1. QXM550-L - Overview

In this Guide you will learn how to fully assemble and configure a MultiWii architecture quadracopter. You will need to have the Falcon Parts Kit and gather the necessary tools & user supplied components described in this lesson. You have the option of obtaining the components of the parts kit yourself. A full parts list including URL links to online suppliers in included in this lesson. Alternatively, you may purchase a full parts kit from SI Drones. The quadracopter parts kit includes a completely assembled (ARF) frame, with the motors and speed controllers already attached. XHeli is the source of the ARF frame. The other parts in the parts kit are sourced from Hobby King. Each section of the Guide has a list of required kit components and tools needed as well as additional user supplied components. Kit Components refer to standard kit parts. Tools needed and user supplied components do not come with the kits. You need to provide these to completed assembly.

2. QXM550-L - Charging your battery

In this lesson you will be setting up your battery charger for the first time. If you will be using this charger for only this one battery you will only need to go through this setup once, and the charger will remember the settings, however it is always good to double check that settings are correct.

3. QXM550-L - Unpacking the Partially Assembled Quadracopter

In this lesson you will unpack QXM550-L Quadracopter. It is important to pay attention to what you unpack and where you place it. Make sure not to loose any of the pieces and parts, and double check that nothing is broken or missing from the kit. If something is broken or missing, please contact the supplier.

4. QXM550-L - Attaching Flight Controller

This lesson shows how to attach the flight controller to the quadracopter. The flight controller will attach to the top of the distribution board. During this process you will remove the distribution board and change the orientation of the quadracopter from a (+) configuration to an (x) configuration. There are small pieces involved in this step so be sure to keep track of each one.

5. QXM550-L - Mounting Receiver

This lesson shows how to mount the radio controlled (R/C) receiver to the quadracopter frame. Communication between the operator and the drone is accomplished by using a DSM2 2.4 GHz six channel receiver. This kit will be using an orange RX R615 receiver which is compatible with Spektrum or JR, DSM2 transmitters. If you plan to use a different brand transmitter you will need a compatible receiver for that transmitter. SIDrones kits require transmitters and receivers with at least 5 channels to be able to configure various flight modes.

6. QXM550-L - Transmitter setup

There are 2 modes for transmitters. Much like how different countries drive on different sides of the road, different countries use different configurations of the same 4 main controls for the flying quadracopters. This lesson introduces you to the Spektrum DX6i transmitter using mode 2. In this mode, the throttle is on the left. If using the Orange RX DSM2/X RC transmitter, the settings and setup are the same as theSpektrum DX6i transmitter, however the pictures note the setup for the Orange RX. If you are using a different transmitter then you will need to review its directions for specifics, but the same concepts still apply.

7. QXM550-L - Calibrating Motor Controllers

This lesson shows how to calibrate the motor controllers. This is the most complex, but most important of all the calibrations. If at anytime during your quad ownership you experience poor flights, re-calibrating the motor controllers should be your first troubleshooting step. Some advanced users may prefer to use a 4 in one calibrator.

8. QXM550-L - Flight Controller Wiring

This lesson describes the steps for connecting the receiver that has already been attached to the frame. In this step you will be using signal wires, that as you recall, consist of a positive, ground and data wire. Power is typically red, ground is typically a darker color like brown or black and data is typically a lighter color like yellow or white.

9. QXM550-L - Loading firmware

This lesson shows how to load the firmware to the flight controller. This firmware is the operating system for your quadracopter. There are many images that you can click on to follow along the process of finding each folder. If you are reading off of a phone and have trouble reading the images, we recommend changing to a larger device or computer. If you are using a non-PC, follow along the folder titles to find each folder but the directions to find each folder may vary slightly.

10. QXM550-L - Flight Controller Configuration

At this point you have a fully assembled quadracopter with the firmware installed. In this step you will upload the settings for the firmware. One of these uploads will include PID files, which controls the flight and stability of your quadracopter.

11. QXM550-L - Attaching propellers

This lesson shows how to attach each of the quadracopter’s 4 propellers. Quadracopters keep from spinning in circles by having 2 propellers spinning clockwise and 2 counterclockwise. The motors do the work of spinning different directions, however the propellers must match, note that each propeller is labeled 1045 or 1045R. the 1045 stands for 10 inch diameter, and 45 denotes the pitch. The R, or lack thereof is the part you care about, R spin clockwise and ones with no R (or L) spin counterclockwise.