Wednesday, August 12, 2015

Flight Of Dreams - First Quadcopter

After seeing a bunch of videos and races and going through multiple blogs, I got hooked up in to Quad copters and FPV.

This is the video that got me hooked in to this -

 Run Boy Run

Run boy run! This world is not made for you
Run boy run! They’re trying to catch you
Run boy run! Running is a victory
Run boy run! Beauty lays behind the hills

Run boy run! The sun will be guiding you
Run boy run! They’re dying to stop you
Run boy run! This race is a prophecy
Run boy run! Break out from society

Tomorrow is another day
And you won’t have to hide away
You’ll be a man, boy!
But for now it’s time to run, it’s time to run!

Run boy run! This ride is a journey to
Run boy run! The secret inside of you
Run boy run! This race is a prophecy
Run boy run! And disappear in the trees

Tomorrow is another day
And you won’t have to hide away
You’ll be a man, boy!
But for now it’s time to run, it’s time to run!

Tomorrow is another day
And when the night fades away
You’ll be a man, boy!
But for now it’s time to run, it’s time to run!  

So here is my adventure with Quadcopter. I am a complete NOOB in this field and just learning the basics of flight.

 1. Parts List

Component Seller Price
OpenPilot CC3D EVO Flight Controller STM32 32-bit Flexiport Banggood $12.79
Gemfan 5x3 Inch Plastic 5030 Propeller CW/CCW For 240 250 Frame Banggood $2.22
4x Emax SimonK Brushless 12A ESC Speed Controller eBay $19
Emax Mini 250 FPV Frame Carbon Fiber Quadcopter eBay $20
DYS BE1806 2300KV Brushless Motor Black Edition Banggood $37.56
Turnigy 9X 9Ch Transmitter w/ Module & 8ch Receiver (Mode 2) HobbyKing $69.90
5M Nylon Lock Nut Lowes $0.68
ZIPPY Compact 1300mAh 3s 40c Lipo Pack HobbyKing $9.88
Turnigy Accucell-6 50W 6A Balancer/Charger LiHV Capable HobbyKing $25.99

2. Build Log:

Difference between CW and CCW Motors

I got 4 CW( Clock Wise) motor for my build. As far as brush less motors are concerned, the direction that they spin is completely determined by how you connect them to the ESC. Brushless motor is not designed specifically to run in a particular direction. You literally hook the three wires up to the ESC in any order, and if it spins the way you want, then you are good. If it spins the wrong direction, then you only need to choose two of the three and reverse the connection and it will spin the other direction.

The difference in the CW and CCW motors are in the threads for the props. CCW motors have right hand threads and CW have left hand threads. This is because when the motors rotate, it will tighten up the nut. Since two motors spin "backwards", they are constantly trying to unscrew the prop. In case if you are using all CW motors, make sure to use the nylon lock nuts otherwise TWO prop nuts will come from your newly-built quadcopter during flight. Weight wise also 4 M5 locknuts are less than 5 grams where as a single spinner is approximately 5 grams. When fixing the locknuts, make sure that the nylon ring is on the top section.

 Connecting the receiver to CC3D EVO

First step is to make sure that the receiver is bound to the transmitter. The Rx in the box is by default bound to the transmitter. 

There are a number of ways in which the actual (main port) wires can be connected to the Rx. You can plug in each of the single signal wires in no particular order into your Rx. Then go to the transmitter wizard in GCS. Open pilot ground control station will automatically assign Aileron , throttle, elev etc through the wizard.

The Rx channels that comes with the 9X has the following configuration:
Channel 1: Aileron 1 (fins)
Channel 2: Depth (elevator)
Channel 3: Throttle
Channel 4: Management (Rudd)
Channel 5: Train returning (Gear)
Channel 6: Shutters (Flaps)
Channel 7: Auxiliary 1 and fins 2 (for differential)
Channel 8: Auxiliary 2
Channel 9: Battery

I have connected the wires from the CC3D to the reciever in below configuration
Plug the 3 pin connector in to channel 3 such that the black wire is in the lowest plug on channel 3, the red into the middle plug on channel 3, and the third wire from left into the top plug on channel 3

Plug the next wire from left in to the top plug on channel 1.
Plug next wire from left into the top plug (signal plug) of channel 2.
Plug the last control surface wire into the top plug of channel 4.

For the control mode changing plug the the top plug on channel 5 of your receiver.

How do you attach a propeller?

 Make sure your props are aligned with spin (leading edge in direction of motion). The writing on the Gemfan 5030 or the 5030R faces up.



You start off with a Acro model (normal plane) - no glider or heli.
That should give you the basic flight controls.

Partial Build

First Flight

My first flight failed miserably. The copter was flipping as soon as I launched. Lost 3 propellers in the first crash. Better order lot of props.

If the Copter is flipping on take off, make sure that

1. The Props are attached properly.
2. Make sure your ESCs are plugged into the appropriate pins.
3. Check if the ESCs are calibrated properly. 


But for now it’s time to run, it’s time to run! 




Romilda Gareth said...


Alice Taylor said...

Nice! Really detailed :) Thanks! I actually had no idea that the brushless motors can be used in either direction?? Especially thanks for that :))) Oh, now that you got it working, you will want to keep it in the air as much as possible ;) Here are some tips to prolong your flight time: