PDF User Manual

  1. Home
  2. Manuals
  3. 3D R Quad DIY Kit Assembly Manual

3D R Quad DIY Kit Assembly Manual

Made by: 3D R
Type: Assembly Manual
Category: Quadcopters
Pages: 12
Size: 2.67 MB

 

Download PDF User Manual


Related Product Video

 

Full Text Searchable PDF User Manual



background image

QUAD

D I Y

K I T S

Thank you for purchasing a 3DR Quad DIY Kit! 
These instructions will guide you through assembling and wiring 

your new autonomous multicopter.

 


background image

1

CONTENTS

Your 3DR Quad Kit contains:

Metal nuts (16)

Nylon nuts (8 plus 8 spare)

5 mm nylon bolts (28 plus 4 spare)

5 mm steel bolts (8 plus 2 spare)

25 mm steel bolts (12)

30 mm steel bolts (4)

Zip ties (8)

18 mm threaded spacers (12)

Accessory 

plate

APM plate

Top plate

Landing gear 

pieces (8)

You will also need:

Black arm (3)

Blue arm (2)

Battery strap

850 kV motors with 

bullet connectors (4)

10 x 4.7 SF (normal) propellers (2)

10 x 4.7 SFP (pusher) propellers (2)

Electronic speed 

controllers (4)

Power distribution board

Power module with XT60 

connectors

Deans connectors - male (4)

6-position power 

module cable

 

»

Phillips screwdriver (small)

 

»

5.5 mm (7/32) wrench

 

»

Double-sided foam mounting tape

These instructions require some minor 

soldering. If you’re unfamiliar with 

soldering, our friends at Sparkfun have 

some great tutorials that can get you 

started, including this comic: 

learn.sparkfun.com/curriculum/42

.  

For an example of exactly what you’ll 

be doing for this assembly (soldering 

Deans connectors to ESCs), check out 

this video: 

youtu.be/3LJIQeKuLLU

.

Heat shrink tubing

Bottom plate

 

»

2 mm (5/64) hex wrench

 

»

Soldering equipment

30 mm threaded spacers (4)

8 mm threaded spacers (4 plus 4 spare)

Two-wire RC receiver cable

Five-wire RC receiver cable

XT60 connector - male

Metal lock washers (8)

Rubber washers (4)

Motor collets (4)

Double-adhesive 

mounting foam

Threadlocking compound

 


background image

2

Micro USB cable

4 mm JP1 

jumper connector
6 mm PPM 

jumper connector

3DR APM 2.6:

You may have opted to also receive:

Telemetry adapter 

cable

3DR APM 2.6

3DR uBlox GPS+Compass:

3DR uBlox GPS 

board with compass

6-position to 

5-position GPS 

cable

4-position compass 

cable

3DR Radio:

FRAME ASSEMBLY

2

Attach motors to arms

Each arm of your Quad will have a motor attached to the top of the arm using two 5 mm steel 

bolts and two metal lock washers. To ensure motors are securely bolted to arms, apply a 

small amount of threadlock to each bolt before fastening.   

Threadlocking compound is an important component to ensure your motors remain 

firmly attached! For application tips, check out this video: 

goo.gl/bM3MA.

5 mm bolts 

and lock 

washers

Position holes in the bottom of the motor over the 

two small holes on either side of the larger hole in 

top in the of the arm. Secure with two 5 mm steel 

bolts (with a metal lock washer on each bolt) by 

accessing through the two large holes in the bottom 

of the arm. Thread the motor cables through the arm 

using the hole in the side of the arm. Repeat for all 

four arms.

Thread 

cables

1

Choose + or x

Your 3DR Quad can be flown in both + (plus) 

and x (cross) configurations. A plus-configured 

copter flies with one arm forward, while a 

cross-configured copter flies with two arms 

forward. While both configurations provide 

excellent performance, cross is standard and 

recommended for new fliers. For plus, use three 

black arms and one blue arm when assembling your copter, and remember to specify plus 

when choosing your frame orientation during software configuration. These instructions will 

continue assembling a Quad in cross orientation.

x (cross) configuration

+ (plus) configuration

Radios (2)
Antennas (2)
Micro-USB cable
Android OTG cable
Autopilot connectors

 


background image

3

Attach a threaded collet to the top of each motor using the 

four small screws included with collets. Apply threadlock to 

each screw before fastening. Repeat for all four motors.

5

Attach top and bottom plates

Place the arm between the two plates so the two holes 

in the arm align with the holes in the plates. Insert a bolt 

into each hole and secure with nuts. For inner holes use 

30 mm bolts and metal nuts; for outer holes use 25 mm 

bolts and metal nuts. Add a rubber washer on top of the 

nut on the inner holes.
For plus configuration: Attach a blue arm to only the 

position on the plate marked with an arrow.

Top plate

Bottom plate

Next add the spacers that will hold the power distribution board in place. 

Using the four holes in the bottom plate shown across, align four 8 mm 

spacers, and secure from the bottom using four 5 mm nylon bolts.

Slide the battery strap through the two slots in the bottom plate.

The top and bottom plates will form the main frame by attaching to your copter’s arms. Align 

plates in the orientation show below, and attach two blue arms to one end and two black arms 

to the other using the four pairs of holes as shown. 

Install motor collets

3

Motor collet assembly

25 mm bolt + arm + metal nut

Outer holes use:

4

Assemble legs

Your Quad has four legs, each comprised of two 

landing gear pieces. To assemble each leg, align 

two landing gear pieces and attach through the 

three bottom holes using three 18 mm spacers 

and six 5 mm nylon bolts.

For each hole, position spacer between holes, 

and secure from each side with nylon bolts. 

Repeat for all four legs.

Attach legs to arms with leg pointing toward 

motors. Align the two top holes in the leg with 

the two holes in the center of the arm. Insert 

two 25 mm bolts and secure with metal nuts.

Leg assembly

25 mm bolts

18 mm 

spacers

Metal nuts

5 mm

nylon

bolts

Attach black arms here

Attach blue arms here

Inner holes use:

30 mm bolt + arm + metal nut + rubber washer

Bottom plate

5 mm nylon bolt + 8 mm spacer

 


background image

4

1

POWER WIRING

Place power distribution board

2

Solder connectors to electronic speed controllers

The power distribution board (PDB) allocates power to your copter’s motors. Place the PDB 

in the center of your copter through the hole in the top plate. Align the PDB so the four 8 mm 

spacers insert into the four holes in the PDB. Secure with four nylon nuts.

Electronic speed controllers (ESCs) regulate how much power is applied to each motor. To 

connect the four ESCs to the PDB, you will need to solder the provided Deans connectors to 

the ESCs’ black and red wires.

Solder Deans connectors to ESCs:
Add a half-inch length of heat shrink tubing onto 

each ESC red wire and black wire. Solder the 

positive Deans connector plug to the red wire 

and the negative Deans connector plug to the 

black wire. Shrink tubing over connections.

Add heat shrink and align wires to correct plugs.

Deans to ESC:

Negative = Black

Positive = Red

- +

Soldered connectors

3

Connect ESCs to motors and PDB

The diagram below indicates the number of each motor. Starting 

with the motor labeled  

, connect the ESC three-wire cable to the 

corresponding position on the PDB pins (M1 for motor 1, M4 for 

motor 4, etc) with the orange wire positioned farthest from the 

adjacent Deans connector. Connect ESC Deans connector to PDB 

Deans connector for that motor. Repeat for all motors and ESCs. 

APM

2

CCW

1

CCW

3

CW

4

CW

APM 

1

CCW

2

CCW

4

CW

3

CW

APM

5

CCW

4

CCW

2

CCW

6

CW

1

CW

3

CW

APM 

5

CCW

2

CCW

4

CCW

3

CW

6

CW

1

CW

Quad motor order

Blue arms

Motor connected to ESC

Connect motor cable bullet connectors to ESC bullet connectors. 

Each ESC should connect to only one motor.

Don’t secure the ESCs to the frame until you have confirmed that each motor spins 

in the direction specified in the diagram above (see motor setup instructions at 

copter.ardupilot.com

).

ESC connected to PDB

Deans

Pins

Motor #

labels

 


background image

5

INSTALL APM

4

Connect power module to PDB

Connect power module 6-position cable to the power module 6-position port. Place power 

module in the center of your copter near the PDB. Connect PDB red and black cable (with yel-

low XT60 connector) to power module XT60 connector.

1

Mount APM

Place the APM 2.6 in the center of the APM plate 

with the arrow on the case facing as shown. 

Use the mounting foam to secure the APM 

to the plate.

Ensure mounting tape is firmly attached so the position of the APM doesn’t shift during flight.

For APM 2.5: Mount the APM to the top of the accessory plate.
For plus configuration: Mount the APM with arrow pointing toward blue arm.

Ensure arrow on APM 

points forward!

3DR APM 2.6

APM plate

Power module with 6-wire cable

2

Connect APM to power module and PDB

Connect the power module six-position cable (red and black) to the APM PM port. Connect the 

PDB four-wire cable (multicolored) to the APM Outputs signal pins (top row). Ensure that the 

wire originating in the position on the PDB pins labeled M1 connects to the APM Output signal 

pin labeled 1, the M4 wire connects to position 4, etc.

PDB to APM wiring

APM output 

pin positions

PDB wire 

positions

Power module

PDB

 


background image

6

Place the GPS module onto the square end of the accessory 

plate with the arrow pointing towards the center of the plate. 

Use double-sided foam tape to secure case to plate.

3

Mount GPS

Accessory plate

Ensure arrow on 

GPS points forward!

4

Wire additional components to APM

Radio control (RC) receiver:
To connect an RC receiver to APM, use the five-wire and two-wire cables provided with your 

copter.
Note: APM also supports one-wire PPM connection with supported receivers.  

 

See copter.ardupilot.com for instructions.
Use the five-wire cable to connect the receiver’s signal pins to APM’s input signal pins. Use 

the two-wire cable to connect power and ground pins between APM and the receiver.

APM inputs wiring

APM input pin numbers

Connect five-wire cable to signal pins (top row, “S”).

Connect red wire to power pin (center row, “+”) and 

black wire to ground pin (bottom row, “-”).

After connecting to APM, connect the five-wire cable to the receiver’s signal pins (usually 

marked “S”, see channel diagram below), connect the two-wire cable red wire to a power pin 

(usually marked “5V” or “+“) on the receiver, and connect the two-wire cable black wire to a 

ground pin (usually marked “-“) on the receiver.

Match the correct control channel signal pin on the 

receiver with its corresponding APM input signal pin.

6  AUX 2 (OPTIONAL)

5  AUX 1 (MODE SWITCH)

4  YAW / RUDDER

3  THROTTLE

2  PITCH / ELEVATOR

1  ROLL / AILERON

APM Input Signal Pins

 

 

 

3DR uBlox GPS with Compass:

   Connect the 6-position to 5-position cable to the GPS     

 

 

 

6-position port and to the APM GPS port (use top-entry   

 

 

 

 

port not side-entry port). Connect the 4-position cable to  

 

 

 

 

the GPS 4-position port and to the APM I

2

C port.

3DR Radio air module:
Attach antenna to 3DR Radio air module.  

      

Connect telemetry cable to the air module 

and to the APM Telem port.

 


background image

7

6

Attach accessory plate to APM plate

Place accessory plate on top of APM plate, and align the four 30 

mm spacers with the four holes in the accessory plate. Secure 

accessory plate to spacers using four 5 mm nylon bolts.

APM plate

Accessory plate

30 mm spacer + nylon nut

5

Attach APM plate to top plate

Now we’ll attach the APM plate to the top plate. The APM plate 

connects to the ends of the four 30 mm bolts securing the inside 

holes of the arms. Place the four holes in the APM plate over the 

exposed 30 mm bolts on the top plate and secure with 30 mm 

threaded spacers.

30 mm bolt + 30 mm spacer

APM plate

Complete plate assembly

INSTALL SOFTWARE

Mission Planner is free, open-source software providing multiplatform configuration and full-

featured waypoint mission scripting for autonomous vehicles.

To install Mission Planner on your ground station computer (Windows only), visit 

ardupilot.

com/downloads

, select 

Mission Planner

, and select 

sort by date

 (short link: 

goo.gl/Si5grC

). 

Select the 

MissionPlanner - MSI

 (Microsoft installer package). For the same features as 

Mission Planner for Mac, download APM Planner from 

ardupilot.com

.

Mission Planner Downloads Screen

Mission Planner

  

« Downloads

Sort by: 

Title

 | 

Hits

 

 Date

 

MissionPlanner - MSI - 1.2.62

Select MSI to download 

most recent version.

Your Quad assembly is now complete! The following 

steps will get you started configuring your copter.

Locate the PDB four-wire cable (multicolored) and the power module six-position cable (red 

and black); thread these cables up through the slots in the APM plate where they can connect 

to the APM.

 


background image

8

After selecting the MSI, read the safety 

information and select 

Download

:

Download

Open the downloaded file to run the Mission Planner Setup Wizard. Select the option to 

proceed if prompted with a security warning.

Mission Planner Setup Wizard will 

automatically install the correct device 

drivers.

Device Driver Installation Wizard

Mission Planner Setup Wizard

Launch Mission Planner to explore 

the capabilities of your autonomous 

vehicle! 

Mission Planner will notify you when an update is available; 

please always run the most current version of Mission Planner.

Mission Planner: Update Message

Mission Planner: Flight Data Screen

Before flying, complete Mission Planner’s configuration utilities, 

including RC (shown on the next page), compass, accelerometer, 

frame type, and flight mode calibrations. Visit 

planner.ardupilot.com

 

for complete Mission Planner instructions.

 


background image

9

CALIBRATION

Connect APM to your computer using the provided micro-USB cable. 

Windows will automatically install the correct drivers for APM.

APM USB port

Connect APM to Mission Planner:
1  Select Arduino Mega.
2  Select 115200.
3  Select Connect.

1

2

3

Mission Planner’s mandatory hardware calibration steps allow you to 

program and configure the APM autopilot for your copter.

Now you can connect APM to Mission Planner.

Select 

Initial Setup

Install Firmware

, and 

Quad

 to install flight code firmware onto APM.

On the left side of the Initial Setup screen, select 

Mandatory Hardware

.

 

You will need to 

perform each of the calibration procedures listed under this menu.

Frame Type

: Select your configuration: Plus or X (cross).

Compass

: Select the options to enable the compass, to allow automatic declination, and 

to select your autopilot type. Select

 Live Calibration

 to launch the wizard, and follow the 

prompts.

Accel Calibration

: Check the box for 

AC 3.0+

, select 

Calibrate

, and follow the prompts to cali-

brate the autopilot’s accelerometer. Make sure to wait a couple of seconds before and after 

changing the positions of the copter.

Radio Calibration

: Turn on your RC transmitter, select 

Calibrate Radio

, and move all sticks and 

switches to their extreme positions. Select 

Click when Done

 once the red bars are set for all 

available channels.

 


background image

10

MOTORS & PROPELLERS

COUNTERCLOCKWISE ROTATION:

USE PULLER PROPELLER

CLOCKWISE ROTATION:

USE PUSHER PROPELLER

Your copter includes puller propellers (unmarked or marked “SF”) and pusher propellers 

(marked “SFP” or “P“). The direction of each motor is shown above: add pusher propellers 

to motors marked clockwise, add puller propellers to motors marked counterclockwise.

CCW

!

!

CW

CCW

!

!

CW

CCW

!

!

CW

CCW

!

!

CW

The diagram across shows the correct rotation 

directions for your Quad’s four motors: motors one 

and two should rotate counterclockwise, motors three 

and four should rotate clockwise.

The rotation direction for each motor is determined by 

the connections between the motor and the ESC. To 

reverse the rotation direction for a motor, switch two 

of the three wires connecting the motor and the ESC.

APM

2

CCW

1

CCW

3

CW

4

CW

APM 

1

CCW

2

CCW

4

CW

3

CW

APM

5

CCW

4

CCW

2

CCW

6

CW

1

CW

3

CW

APM 

5

CCW

2

CCW

4

CCW

3

CW

6

CW

1

CW

Quad motor order

Blue arms

1. Connection between motor and ESC

2. Switch two wires to reverse motor rotation.

puller

pusher

puller

pusher

Flight Modes

: Move each switch on your transmitter to its available positions. Mission Plan-

ner will indicate the currently selected position with green highlighting. Select a mode for 

each switch position, and select 

Saves Modes 

to assign.

Failsafes

: Failsafes are advanced safety precautions that can be very useful for your copter. 

Consult the online documentation at 

copter.ardupilot.com

 to learn more about configuring 

and testing failsafes.

Complete all configuration procedures as described at 

copter.ardupilot.com

 

before attempting your first flight.

Show me! Watch videos demonstrating live calibration techniques at 3DRobotics.com/learn.

 


background image

11

SECURE WIRING

Before flying, use zip ties to secure ESCs to the frame. Ensure that 

all wires are secured so they will not become entangled in spinning 

propellers, are not too tight around corners (no hard 90-180 degree 

bends), and do not pull on the APM 

or other components. Always 

complete the pre-flight checklist 

before takeoff 

(

copter.ardupilot.com/wiki/checklist

). 

ESCs and wiring secured with zip ties

Visit 

copter.ardupilot.com 

to learn about multicopter safety, 

hardware and software configuration, using autonomous flight 

modes, tuning, designing missions with waypoints and events, 

troubleshooting, and more. Happy flying!

SUPPORT

For more information about software, firmware, and flight behaviors, visit 

the APM Copter community documentation project at 

copter.ardupilot.com

.

For customer support, contact us at 

help@3drobotics.com

 or call our 

support line at 

+1 (858) 225-1414

 Monday through Friday, 8 am to 5 pm. 

For more assembly instructions and information about building and 

configuring your copter, visit 

3drobotics.com/learn

.

Remove plastic rings from propeller package, select the one with the smaller internal 

diameter, and insert it into the back of the propeller hub.

Add propeller to motor collet with writing facing up in 

relation to the sky. Add the washer and prop nut above 

the propeller; tightly fasten prop nut to threaded collet.

Prop nut

Motor

Propeller

Collet

Safety Check! Ensure writing on props faces up.

Washer