Getting ready to build

T

Timmahw

New Member
Based quadcopter gods, I beg for your mercy and guidance.

Seriously though, I am in the midst of planning my first build, and could really use some advice on the project's current state. From my browsing, I came up with this setup:

Frame
Turnigy Talon Quadcopter (V2.0) Carbon Fiber Frame 550mm
280g $55 Link

Control Board
HobbyKing® KK2.1HC Multi-Rotor Hard Case Flight Control Board
32g $25 Link

Motors
NTM Prop Drive 28-26 1000KV / 235W
272g $64 Link

Props (10in)
1045 Turnigy Slow Fly Propeller (2x CW 2x CCW)
60g $4 Link

ESCs
TURNIGY Plush 18amp Speed Controller
136g $48 Link

Battery
Turnigy nano-tech 2200mah 3S 45~90C Lipo Pack
201g $21 Link

Factoring in other components such as RX and wiring, my total weight estimate is 1120g.

My current principle concern is with the weight versus thrust. I guess this is THE principle concern with flight ... but I digress; my calculation comes out to 700g max thrust per motor, 2.8kg total. So, two questions: Is my battery/esc/motor/prop calculation correct? And what will 2.8kg of thrust reliably allow me to handle weight-wise? (In the likely even that I attach more doodads to my quad.)

Any other advice on the components is welcome. I greatly appreciate the read.

TW
 
Hi TW , well that was my set up but i had bigger motors this is what i found ,there is no space in the frame to hide any thing , so i got a plate off the X525 and fitted this under it , this is where my PDB is ( power board) and receiver the frame is really nice good choice
The FCB good choice too but flash it with Steveis v1.16s1 pro this is much better than the HK code it has your need flash tool and pc software i can show where to get this from
Esc are ok but i would go a little larger like 30amp Yes over kill but you can swap out motors for better more powerful and not burn out ESC
The battery will only give you about 5 to 10 mins flying time ,as you fitt more to quad your need to look at 4000mah
motor to props well high kv small props low kv larger props , i started with 1100kv motors 10x4.7 props and the same battery as you flight was 3 mins ( poor flight time ) so i then put on 650 kv pan motors 14x 5.5 props same battery flight is 6 to 10 mins ( this is the biggest props that will fit standard arms i have now got the longer arms so the 550 mm quad is now a 700 mm , if i want longer flight times i will up battery to 4000 or 5000mah , flight weight as first set up was 1.2kg even at this weight its fast
http://flitetest.com/articles/choosing-multicopter-motors
Use this to play with set ups it you want to see pics of the talon v2 as i done it just say may give you some help , once the rain stops i will set up better and do a video
 
Very interesting, thanks holtneil. The calculator sheet is great, as well. Totally saved it.

After reading more into your insight regarding kv/prop size, 14in props indeed started looking very attractive for my application. That is, I'm not sure what the fully-realized quad's application will be, but I'm certain it will not be speed and acrobatics. At the moment, I'm leaning in the ever-popular direction of aerial filming; I imagine lift (for gimbal etc) and stability are paramount. That said, I came up with a new set of components:

Motors:
NTM Prop Drive 28-30S 800KV / 300W Brushless Motor Link
  • These seem like the most versatile motors for the price, and 800kv seems more reasonable than 1000kv.
Propellers:
9x4.5 Three Blade Counter Rotating Propeller CW and CCW Link or 14x4.7 Slow Fly Electric Prop 1447 Link
  • The more I read into prop size, the more commonly I found 3+ blade props in use rather than 2 in stable lifting applications. Plus, the 3 blade look is pretty badass. I think I'll buy two sets, 2 and 3 blade, and test them.
ESCs:
TURNIGY Plush 30amp Speed Controller Link
  • 30amp indeed looks like way better route.
Battery:
Multistar High Capacity 3S 4000mAh Multi-Rotor Lipo Pack Link
  • I've come across your story several times now.. people starting with 2200 and eventually moving to 4000. I think I'll just skip to the end.
Thoughts? I'm especially interested in your 2 vs. 3 blade opinion.

TW
 
Hi Tw , if you go for the bigger props your need more than a 3 cell battery ,if you look at motor prop test you can run 8 inch props to run 14 inch you need a lower kv motor take a look at this motor these are what i use run well on a 3 cell and take T type fitting props
https://www.google.co.uk/url?sa=t&rct=j&q=&esrc=s&source=web&cd=9&cad=rja&uact=8&ved=0CFEQFjAI&url=http://www.mbuynow.com/agm-brand-mt3506650kv-cw-thread-for-airplane-p-2230.html&ei=ZmFzVPG7N9DSaM7AgOgM&usg=AFQjCNEJK8jxqu5Yn8Pnf-RqMSCAZU8MVA&sig2=dLQaRRAAgrUgQgAetXWwOA&bvm=bv.80185997,d.d2s
As for the ESC they are good you can flash them with simonk its a code for quads
Battery is good will give you a good flight time, this is what i got for the motors i use on a 10x4.7 prop but hover was 80% throttle so once i fitted 14x5.5 props the hover is at a lower throttle and there is loads of lift, flight time is an easy 6 mins once the 4000mah is fitted the times will come up more ecalc.png
 
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