Date: April 7, 2015

The PiDrone Update #3

Main electronics and avionics have now been installed

Components I’m Using:

Turnigy D3536/9 910KV Brushless Outrunner Motor (US Warehouse)

Turnigy nano-tech 4000mah 3S 25~50C Lipo Pack (US Warehouse)

TURNIGY Plush 30amp Speed Controller

3DR Pixhawk (+ GPS and PPM Encoder)

12×4.5 SF Props 2pc CW and 2pc CCW Rotation (Black)

3DR Cloned Telemetry 915 mHZ

  • Almost everything is velcroed on to the acrylic (it sticks well) including the battery
  • Pixhawk is mounted on a square plate with 3DR anti-vibration foam
  • Most electronics are mounted on middle plate, except for GPS, which is mounted on the top place to reduce interference (no mast).
  • DIY Power distribution system with 10 AWG wire splitting in to 4 sets of 16AWG wire. The battery is connected with 4mm HXT plugs, while the motors and the ESCs are connected via 3.5mm bullet plugs
IMG_1058

Before

IMG_1218

After

The cheap plastic props had to be reamed with a prop reamer to fit the 8mm shaft of the prop adapter. Nobody sells a metric prop reamer with a starting shaft size of 6mm (they all start at 1/4″!) I had to use a standard prop reamer that produced horribly off centered shaft holes. I bought a Durbo Prop Balancer and balanced the blades with tape, but I doubt it will do much good.

Next up: Test Flights!

The PiDrone Update #2

I have now completed the new and redesigned laser-cut Acrylic Frame. The old frame was made of 1/8″ aluminum which made it quite indestructible, but also  caused interference with the flight controller avionics. Here are some of the improvements of the new design:

  • Mount for Pixhawk Safety Switch
  • Much, much more working space
  • Mounts for Raspberry Pi  and Pi Camera
  • Support for removable anti-vibration mount


IMG_1162

 

Everything is held together with 4-40 screws, and 1″ 4-40 hex standoffs. The 4 aluminum booms purchased from HobbyKing are sandwiched between the two plates securely.The acrylic turned out to be much bendier than I initially believed, so the frame is “squishy” at some areas.
IMG_1158

Download Ai Files: Quad Files

 

The PiDrone – Update #1

The PiDrone is a drone with a Raspberry Pi onboard that I hope to exhibit at Maker Faire Bay Area 2015.

My Goals for the Project Are:

  • Have the Pi and the Drone communicate through 3DR’s Drone Kit 
  • Have the Pi host a web based ground station
  • Create an iOS Ground Station for the drone

I already have a semi-working drone built up from last summer, but it will require extensive repairs and redesign.

 

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