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Home Made Quadrotor (The HAL Rat)

Discussion in 'Multirotor' started by Matt, Dec 22, 2013.

  1. Matt

    Matt Registered

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    Hi everyone, thanks for the add, I am new to RC as of this year. I planned to build a multirotor (MR) and decided on Quad because of the maneuverability and versatility of payloads (GoPros, phone camera etc.) easily attached to the craft. I chose to forgo as many parts as possible to save on weight, but the basic build is from a variety of HAL parts. Between Turnigy's HAL hex and quad kit, and some home made carbon fiber pieces I was able to assemble something balanced and lite that has an average flight time of 20 minutes on a 6000MAH 3s battery fully charged to ~12.5v. I used a Naza Lite with GPS, Turnigy AllStar 45amp Esc, Turnigy KTN 1100KV motors, and 10x5.5 carbon fiber props. I home made all of my wiring harnesses, as well as the offshoot for the green lights on the from of the MR for orientation mid flight. I grabbed a simple $50 8ch radio from HobbyKing and programmed it at home: changed stick locations, traded out annoying beeper for an LED. If anyone has any questions on building a MR at home, please feel free to ask me any questions. Happy Holidays!! 1489284_626691290703222_392883752_n.jpg 1489284_626691290703222_392883752_n.jpg 1497774_623218194383865_909975002_n.jpg 1497774_623218194383865_909975002_n.jpg
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  2. Tiger

    Tiger Registered

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    Wow Matt! That's really pretty impressive! I see you're up in Eugene. Wish you were a little further south so you could come fly with us. We'll be watching to follow your progress with this. Nice work!

    ...Tiger
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  3. GPS

    GPS Registered

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    What do you mean you traded out stick positions? Did you make a mode 1 radio into a mode 2 or vice versa?
  4. Matt

    Matt Registered

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    Made a European mode 1 into mode 2 I think; you could say I put the throttle on the left, because it was on the right :D
    The Euro model was cheaper when ordering parts from overseas from HobbyK. If anyone ever needs help doing this, I could post a vid, it is very simple to do on a Tx9.
  5. GPS

    GPS Registered

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    Did you physically move the joysticks or just the wires?
  6. Matt

    Matt Registered

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    Did not have to physically moved the sticks after opening up the radio, had to relocate a small chip for each, and move over the apparatus that adds resistance to the elevator (basically just a small spring) that makes the right stick return to center. After that, I just buttoned the controller back up and was done. I took out the beeper and replaced it with a small LED light as well; I hated that beeping noise lol.
  7. GPS

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    That sounds like a good way to save a few bucks on a decent transmitter. Thanks.

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