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First Flight

Posted by Sandesh Dhagle on July 12, 2012 at 2:00am

This is the video of the first flight of my 3DR Arducopter with 880kv Motors & 10x45 Props and default PID. The drift was due to heavy wind and also I suspect a faulty ESC for motor #3 causing it to spin slower than others. It might also be due to tilted Motor mount.

I had replaced the suspected ESC with a new one. Will try a flight today to check if the problem still exists.

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Comments

  • Sandesh Dhagle July 14, 2012 at 11:28am

    Thanks all for your inputs. I was able to get a stable flight after replacing the faulty ESC for Motor #3. Here is the video of today flight which is stable now. I still need to learn to fly it better in windy condition :)

  • Geeteshkumar Shakyawar July 12, 2012 at 11:23pm

    @ sandesh thats nice work.... i was not able to make such a nice first flight .... greetings from mumbai..! 

    @ pete ..... ya it can be one of the reason for the slow rpm...... i had the same problem and made the central hole a bit larger and it was solved

  • Pete Burnett July 12, 2012 at 10:23pm

    Can I add one more thought to a slower motor (from a complete newb who has just built the exact same rig). Although I was highly impressed with the kit, I found a few small 'glitches' I had to rectify during construction. One of them was the central hole in the arms below the motors was a tad too small for the 880 motors. The motor c clip would catch on the hole (I think it may be they are made for the 850 motors, smaller diam c clip?). I had to drill the holes out to 9.5mm to stop the c clip rubbing on the arm as the motor spins. Might just be a cause of your motor being slower?

  • Sandesh Dhagle July 12, 2012 at 10:00pm

    Thanks Dany, Will definitely try this

  • Distributor
    Dany Thivierge July 12, 2012 at 12:10pm

    Not too bad!  it could also be "simply" be that you did not do the in flight auto trim. 

    the best way (simpler) is to arm as usual, then hold again the left stick to arm (lower right) for an extra 20 seconds

    Watch the ABC LED, they will start to dance!  :) 

    That means you are in trim mode, your goal for the next 45 seconds (can be repeated all day if needed) is to fly at about 4-5 feets off the ground and try to maintain the quad as steady and square as possible, for example for you it seems that it wants to go left so you will hold it in place by compensating on the right stick to the right, maybe a bit on the back as well.  If you have it in very steady there as long as possible in your 45 seconds trim window the APM will read what you had to do on the stick and will zero it out to compensate itself.  

    So now you land and try to take off again.  It should be better.  Repeat it until it's perfect. 

    while landed, hold arm for 20 sec, check ABC LEDs, fly steady for 45 seconds, land, test with take off. 

    repeat.  :) 

    Of course if there is wind it will play against you so try to find the perfect spot and time to do it. 

    There is also the way more advance Ch7 Trim option but I find it harder to do at first... 

    Keep having fun! 

    Dany

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