Does This Quad Make Since?

[Dezy]

Would building an H4 quad,using a F550 frame, provide a good platform as a Go-pro copter? I want something quite and stable.
The long term goal is expanding it to a Y6, after gaining some experience.

And if the quad is a good idea, which motor/frame combo would provide enough lift, be
reliable and on the quiet side?

In the 80-90's, I was in the video business down in LA - mostly corporate documentaries. Recently, discovered whats going on around here and I'm loosing sleep - I'm so stoked!

• :highly_amused:
  

Anyways - thanks for the time/space and any advice!

Dezy

 

[gtranquilla]

IMO - You can remove two arms from the F550 to make a quad and still lift a hard mounted GoPro w/o the housing and/or gimbal and landing legs.....
As soon as you need to add a gimbal and landing legs you need to use all six motors/arms.....even then your flights will be short.... best to use pitch servo only and avoid adding the roll servo.

To go up from there you can buy the RCT800 800mm arms from RCTimer in HongKong..... These enable you to add larger motors c/w larger diameter props up to 14 inch dia.
Then you can lift much more. When selecting larger motor/prop combinations you need to use eCalc for multrotors...... there is where multi-discipline engineering design kicks in...
Or if you are not careful you will have a garage full of mismatched parts and 1/2 built Multi-rotors going nowhere.
There is much hidden value in a manufacturer's fully developed ARF Multi-Rotor system.....
If you want quiet in addition to all above..... you might want to go with slow rpm motors with high torque and large radius props of very good quality such as Graupner or carbon fiber props.

Would building an H4 quad,using a F550 frame, provide a good platform as a Go-pro copter? I want something quite and stable.
The long term goal is expanding it to a Y6, after gaining some experience.

And if the quad is a good idea, which motor/frame combo would provide enough lift, be
reliable and on the quiet side?

In the 80-90's, I was in the video business down in LA - mostly corporate documentaries. Recently, discovered whats going on around here and I'm loosing sleep - I'm so stoked!

• :highly_amused:

Anyways - thanks for the time/space and any advice!

Dezy

 

[Dezy]

Thanks gtranquilla.
I had heard that a H4 was less affected by the wind than a 6X. And was hoping that I could get big enough motors for the payload.
Would I disablethe roll servo ona 468 gimball - is this for weight saving? Should I wait for a new brushless gimball?
Any suggestions for motors on an F550 using six?

 

[gtranquilla]

Keep in mind that the Naza controller MR configuration options are more limited than is the WK - WooKong controller.
The WK controller allows you to define the x and y distances between each of the 4 to 8 motor positions.
A F550 with two arms removed will not allow the remaining four motors to be identically spaced in both x and y directions.
That limitation might have some impact on the Naza controller response. However I suspect any issues could be easily resolved by adjusting the pitch PI tuning separate from the roll PI tuning...... that would be the basic versus the attitude tuning if I remember correctly.

MR tuning is directly affected by angular momentum of each motor arm.

Thanks gtranquilla.
I had heard that a H4 was less affected by the wind than a 6X. And was hoping that I could get big enough motors for the payload.
Would I disablethe roll servo ona 468 gimball - is this for weight saving? Should I wait for a new brushless gimball?
Any suggestions for motors on an F550 using six?