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Part 5: More Parts On The Way.

    Blog entry posted in 'Hunter Killer', August 26, 2009.

    I’ve ordered a few more parts which are needed for phase 1.

    EDF Ducted Fan Unit 2.56 inch 6 Blade

    Code:
    Blade Diameter: 66mm / 2.56inch
    Outer Case Diameter: 70mm
    Wall Thickness: 1.9mm
    EDF Length: 61mm
    Front Shroud Diameter: 81mm
    Motor Mount Holes: (Adjustable, from 25~26mm)
    Blade Type: 6
    Shaft Size: 3mm

    Recommended Motor: 380 / 28-47 9 Turn
    ESC: 36A
    Rpm: 4,000kv
    Power: 750~950g Thrust


    This is a fantastic EDF unit, the look, size and specifications are perfect! One problem I see is the motor that I ordered has a shaft of 2.26mm which could pose a problem. But hey, we’ll resolve that problem when we need to.

    Hitec HS-55 Micro Servo Motor

    Code:
    Speed (sec/60o): 0.14
    Torque (Kg-cm/Oz-in): 1.3/18
    Size (mm): 23 x 12 x 24
    Weight (g/oz): 8/0.28


    Servos will tilt the EDF units, 2 have been ordered. Another component that may cause an issue, this is due to the torque being rather low. But again we will have to do this by trial and error.

    SFE Single Axis ±300°/s Gyro Breakout Board - LISY300AL

    Code:
    Complete rate gyroscope on a single chip
    Single Axis 300 degree per second maximum range
    Low power single axis gyro
    Comes fully populated and tested
    Dimensions: 0.8" x 0.8"


    The gyro will allow the Axon micro controller to determine the angle of the HK which will keep the craft stable while hovering – which is actually more a phase two feature but it will be important to start work on this early..

    Next testing, then construction… We’re well committed now!

    Comments
    FregO, November 21, 2009
    Hi Electro...can you tell us how you stay with the mashine???
 

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