Proposed build.

[philg]

Help with build.

Howdy all.
I`ve been looking at this forum for a while and have decided to build a heavy lift quad.

Specs are as follows.

Avroto 2814 motors.
Turnigy 30amp plush esc,(maybe 40amp?) .
DJI Naza.
11x4.7 props.
4s battery.

Total weight (including battery + camera) will be around 1750 grams at the moment,though could be up around 2000 grams at sometime.

How does this set up look to you guys?

Any suggestions,comments or recommendations would be appreciated.

Phil.

 

[philg]

Thank you for all the help guys,your advice and recommendations were very helpful.

 

[DucktileMedia]

Things get lost on here really quickly. I know it can be frustrating when you need answers quickly. You will be fine with the 30 amp esc's. You can even run 12" apc SF props and be fine. You might want to get into a hex eventually as it will not work so hard to lift that load. But 4 avrotos should be good for a light weight point and shoot camera with light gimbal. For the price of the extra 2 motors it is worth making a hex IMHO. Hope that helps.

My naza/f450 with graupner 10x5 props and a 4s 4000mah battery can easily lift the gopro and some extras.

 

[Lorphos]

Which frame do you plan to use?

Have you calculated the components at www.ecalc.ch/xcoptercalc.htm ?

 

[philg]

Thanks guys for the quick reply`s,sorry for the sarcasm I was feeling a little neglected :nevreness:.
I`m making my own frame out of CF,and is 510mmx510mm motor to motor.
I`m going to go quad first then maybe hexa.
Thanks for the calculator,excellent to get some data on the my power source

 

[KopterX]

Thanks for the calculator,excellent to get some data on the my power source

Just don't totally rely on eCalc. I have seen the a lot of people here considering eCalc the bible of building multirotors and arguing about facts they found on eCalc. eCalc is really nice, however is far from being perfect for power source calculations. It does not take in consideration a few important facts:

1. geometry of the frame, and I'm not talking only about number of engines or shape, I'm talking about arm lengths and space between propellers
2. Prop elasticity, which is somehow very important in turbulent air.
3. Center of gravity and momentum inertia in correlation with the power needed to move the equatorial plane of propellers.
4. coaxial designs, which are less efficient then single propeller on axis designs.
5. purpose of the built, AP, AC, acro, FPV, etc.

All this above have direct impact on efficiency and ...and these are just the important missing parts of eCalc equations. There are more if you want to go deeper in calculations.

What i want to say is: building multicorotors is not exact since unless you are a group of interdisciplinary scientists. I like eCalc and is perfect to get a first quick idea about some facts. But, you need to try different setups until you are happy with the result, especially when you make a custom frame.

 

[kloner]

what are you planning doing with it?

 

[philg]

I will be using it mainly for FPV/filming/photography with a few different cameras,I`m a PJ.
I only used eCalc as a guide,to many variables not listed,it`s a good tool though.