Update on first APM 2 quad build

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This is an update to my previous post about bulding my first quad copter. Finally the most important packages from China & Hong Kong has arrived, containing the motors and the new Hobbywing Quattro 20A ESC / 3A BEC. 

I have also purchased the Turnigy 9x which was quickly updated to the ER9X firmware using a standard Arduino as the programmer. I followed the instructions from here in case someone needs to do the same. I plan on upgrading the radio to the FrSky ACCT module which spreads over 40 frequencies rather than the Turnigy's 16, so it should be more resilient to interference from other 2.4GHz radios.

After having set up everything, verifying the correct rotation (and propeller placement) on each motor, calibrating the ESC and leveling the quad it was time for a test flight. Indoors of course, and with about 2x2 meters of unobstructed space available :-) I'm happy to report that it hovers like a dream in stabilize mode

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Comments

  • I don't think the design of the legs is of importance, in fact the 3DR ArduCopter frame has the legs mounted closed to the center of the frame and tilted outwards. There are also frames with helicopter style landing skids.

  • Excellent build !  I m not a Quad guy.but I was wondering?  What is the reason  on "Quad's" and such for having the landing legs tilted in towards the center at the bottom?  Instead of straight down with maby a light air shock? Or is it that the Quadro copter has such a large foot print it is don for aesthetic reasons pleasing to the eye to give it a Star shippy feel? Or coming in on a slant  if one leg hits the ground first it self rights? Just wondering 

    Have a Great Day!

  • I was expecting someone to point out the loose bullet connector ;-) Actually it's completely stuck, I think perhaps some solder has managed to find its way under the springs on the male connector. I am going to fix that soon!

    Forgot to mention the total weight (with 1800 mAh LiPo) is 840 grams / 1.85 lb.

  • Looks nice :)

    Also, bullet connector to the near/front right motor from your image is coming loose.

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