Here is my quad video:



Power board doesn't exists, just I soldered + wires together and - wires together.

APM 1.4 with latest ArduCopter code. Uploaded via Mission Planner.

Did leveling process successfully

Did radio setup process successfully

Did frame set to + mode

Before everything just erased eeprom using erase command on terminal

IMU Shield is attached as you may see in video

ESCs calibrated all at once successfully.

Propellers CW and CCW successfully attached and front, back, left, right attached to APM properly.


Frame is made from Balsa Wood.


ESC: DualSky ESC 25A

Motors: DualSky 980KV (XM2830CA-12)

Battery: 3000mah 11.1V 30C


Entire quad weight: 910 grams


What do you think now?

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You CANNOT reference anything to the ESC grounds, at the currents drawn there are huge voltage fluctuations in voltage on those wires.

All your grounds should be tied to a common point, preferably the correct PDB.

The Wiki has very clear info, collected and refined by many gifted people, and sometimes learned the hard way.

I fail to see how someone WOULD'NT  follow it.

It almost looks like it's going to fly in some of those shots.  It could just need a bit of correction at liftoff.

Have you ever flown a quad before?  I get the feeling maybe not, but forgive me if you already know this.  It requires a bit of practice.  First time, it took me a while to get off the ground without crashing.  I spent quite some time with the motors at just below liftoff point sliding the copter around on smooth ground (concrete) to get the feel of the controls.  Then when you do get off the ground, fly keeping the tail facing directly towards you so that the controls parallel the movement of the copter - i.e. stick left = roll left.  After quite a bit of practice (days) with this, then learn how to rotate your brain as the platform rotates, flying first left/right and ultimately flying back towards yourself where left/right fwd/back are all reversed (I'm still working on that one!)

Here's a good site: http://www.rchelicopterfun.com/how-to-fly-rc-helicopters.html

To help with this, you'll want to wrap some bright coloured tape around the front leg of the quad to show you which is front.

BTW, what flight mode are you using?  Stabilise would be best.  There is Simple mode that flies in a set direction regardless of the orientation of the copter.  However, I notice you don't have a GPS or Magnetometer, so Simple mode won't work.

I have flied with Parrot and XAircraft for so much time, parrot has a takeoff feature and that solves a lot of problems. But overally I have played with Quads for some time. But thanks for suggestions.

I always use Stabilize mode and I'll add GPS and magnetometer. But I have to takeoff properly at first, always two sides of my quad rotates faster.


I was not able to find anything related to ground wires in ArduCopter, I used google, tried different search keywords, nothing relevant. Could you explain or reference it? Thanks


Changes made during last hours, learned them here in comments.

a) Connected Ground and Signal connection on ALL ESCs.

b) Manually calibrated EACH ESC.

c) Balanced ALL propellers properly.

d) To protect noise and that extension cables which may caused noise, I used original ESC cable extender and just cutted + wire on it.

Now after above changes NO ANY SIMPLE change! Everything behaves as before, exactly as originally uploaded video.

What do you think now?


More images attached:


Recent fly logs attached


Please see my last 3 comments in this thread

Logs attached, please check my last 3 comments in this thread

I got a strange point, if it makes difference.

I go to terminal, I enter setup -> motors

Motor 1 spins a little and stops

Motor 2 spins a little and stops

Motor 3 no diff but waits necessary delay

Motor 4 no diff but waits necessary delay

Then motor 1 spins again a little and stops and so on.

Anything here?



I see this data in MegaPlanner:



Is it normal?


Mark, get in touch with someone more experienced.

But here are some links you might want to look at:




As to why a single ground point in high current systems, google "power supply design"

English isn't my first language, I sometimes have difficulty get my thoughts across.

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