Discussions

My second cuad, a Tarot 650

Posted by Cala on September 27, 2014 at 5:43pm

Hello, I'm finishing my second cuad, a Tarot 650 :)

and I want to share with this comunity that help me a lot.

The objetives:

Build a more efficient cuad (than the first) that can fly minimun 15-20 mins carring a camera and using the knowledge that I learn from my first cuad to present, choosing parts, building and tunning on my own :) (but any help or suggestions are welcome )

Parts:

From what I choosed and what I was able to buy were little differences because we have many difficulties to import things to owr country and 3DR export problems when I bougth parts.

Frame: Tarot 650 with external motor mounts

controller: Ardufliyer 2.52 (perhaps Pixhawk next year ;) )

Motors: RcTimer HP4215 460kv

Esc: Opto 40A

Props: 15*65 CF Rc timer

GPS: Neo UBlock (pick a better one next year)

PModule 3DR, telemetry 915

Cheap Rx: waiting the Dragon Rx (I put one but fails :( )

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Replies

Cala March 10, 2015 at 5:06pm

(I move this discussion here because isn't my frame design, I think this is the correct place)

Some test with the new Props, yesterday no tune, today better, with some wind, FPV on and carrying a mobius, a little mission and flying FPV; 18-18.5 A, interesting result, I have to test now with higher winds.
- Timothy > Cala May 17, 2015 at 7:35pm
  
  What the hovering weight at 18A?
  
  Why not try inverted motors down?
  - Cala > Timothy May 18, 2015 at 12:53pm
    
    1.4 kgs without batteries. I prefer upside because y fly on farm fields and, sometimes, weeds, disturbs the props if they are lower.
    - MR60
      
      Hugues > Cala May 18, 2015 at 1:30pm
      
      What batteries do you use on this quad? What anti vibration you have for your fc?
      - Cala > Hugues May 18, 2015 at 1:50pm
        
        I have two zippy compact 5.000 3s and two multistar 5200 3s too.
        
        the fc is fixed with a doble sided silicone 3M tape.
        
        Something like this but this photo is from another cuad.
        
        but only one layer and an elastic band just in case...;)
Cala March 8, 2015 at 6:36pm

this guy fly well on summer monitoring sunflowers and win new props a 17*5.5 ones and Amps down from 20 to 17 :), first test was this morning and I check with handheld Amp monitor, as quick as I can I'm going to check with all the battery charge to check flying time, my first objetive was 20 min (reached 25 min) , then 30 but now I dream with an hour, Forrest and his team culprit ;) ; or women record flying time with a Diy Drone LOL
- Aerobat > Cala March 9, 2015 at 7:18am
  
  Hola Cala buenisimo tu uav, vi que sos de Argentina...una consulta que tal son los quad Tarot? Siempre me maneje con la marca DJI y estoy intendo armar uno especialmente para uso en agricultura, tenes experiencia con cámara multiespectrales y demás?
  - Cala > Aerobat March 9, 2015 at 3:12pm
    
    Este frame esta muy bueno, le podes poner la controladora que quieras, yo lo tengo con APM, camara multiespectral solo tengo una "homemade"
Cala March 8, 2015 at 6:22pm

Then, I change the 2.4 receiver for a Dragon one because I have many failsafes and I'm not agree to lost radio signal (It let me nervous) I have a ligther antenna to change but when I change, I crash taking off and return to that heavy one, then I discover the issue and have to try again, antenna wasn't the culprit

https://storage.ning.com/topology/rest/1.0/file/get/3701952972?profile=original
Cala March 8, 2015 at 6:17pm

GPS is on the mast and RModem is backward but RM haven't good signal, I try whit a dipole but I think that I need to move like the VTX to have better range ¿any suggestion with it?