Originally Posted by Dialfonzo

Ok first flight video..

- Tiger Motors 2216-900kv
- 4in1 ESC
- DiaLFonZo-Copter Shield MWC

Video is done with Gyro only mode

http://www.youtube.com/watch?v=ITgkt...ature=youtu.be

Do you have any more info on that 4in1 esc?

Originally Posted by acuralegendz

Do you have any more info on that 4in1 esc?

This ESC was buy direcly from the manufacturer and i can't seem to be able to contact again...

I have it for almost 8 month and first time i really use it.. lol

Hi Dialfonzo,

I'm not so sure if that is so relevant since i saw your quad flying but looking at the pictures seems the place you have for the FC is out of the CG. Am i wrong?

This is what i mean


Cheers

The CG is where you have the Blue round.. !

No the blue round is where i think you have the flight controller. The CG is in the red cross.

Originally Posted by rgon

No the blue round is where i think you have the flight controller. The CG is in the red cross.

The center point of the 4 motors is not the CG since they is not a symetrical quad, the back motors are not the same distance as the front hence why the CG is shifted forward.

How can you calculate the CG in this case?

Originally Posted by rgon

No the blue round is where i think you have the flight controller. The CG is in the red cross.

The CG is not the red cross cause if you calculate the lenght, you don't have equal lengh red line for all motor to center.

The CG is the blue circle you draw.
Since that is a circle draw that connect to each motor.

Like Flitelab said, it's imposible to have a "Perfect" rounde spyder with equal lenght DJI arm.. lol

I have fly the quad with and without the GoPro up front. So one flight was really off balance due to the weight all in the back. I didn't see any difference in flight carracteristics...

I am sure the back motor spin faster (since off balance) but that's probably all it does.

edit: the motors to cg lenght are all equal from the blue circle

I see what you mean and I was in doubt.
If the back motors are forced to spin faster you probably have a wobble effect. How does it yaw?

Originally Posted by rgon

I see what you mean and I was in doubt.
If the back motors are forced to spin faster you probably have a wobble effect. How does it yaw?

It yaw real good.
The TBS clone you did would act exactly the same.

edit: if you read what i said, i said that they run faster because there was not GoPro up front.

Originally Posted by TBSClarification

http://www.rcgroups.com/forums/showp...1&postcount=24

Yep i know that..

Originally Posted by TBSClarification

ok, just making sure. I don't want this to ruin your thread, so enjoy and keep it "ethical". cheers.

In fact it was not an attack to him.
His frame look awesome and he cut it by hand..

Lot .. Lot... Lot... of work involve there and he even did the power distribution thing..

He just ask for FC and CG placing.

BTW: i could buy a set of PCB plate to try and cut a power distribution to the frame. But would need a good set of coating to the plates to be sure no short..