I also upgraded to the new KK2.0 flight controller (FC). The FC I used for the Talon had some sort of electrical failure followed by smoke, so it was no longer usable. Luckily I had a new KK2.0 FC on hand waiting to go. I immediately upgraded the KK2.0 to the new v1.2 firmware from the v1.0 it came shipped from Hong Kong with. Find upgrade instructions here. I never flew it with the v1.0, so I can't comment on if the v1.2 is any better. The new KK2.0 FC is hands down better than the old FC used on the Talon. Much more stability, nearly hands-off hovering, and all around easier to fly- not to mention much, much easier to set up using the built-in LCD display. Definitely worth the extra $15.
|Turnigy Q450 glass fiber quad frame||1|
|Hobbyking KK2.0 LCD Flight Controller||1|
|Quad-rotor power distribution board||1|
|Turnigy L2215J-900 Brushless Motor (200w)||4|
|Hobbyking SS series 18-20A ESC||4|
I chose to set up the Quad in "X" mode. Strangely, the pre-drilled holes in the Q450 only support mounting the flight controller in "+" mode orientation, even though the arms are 1/2 white and 1/2 red suggesting that the user fly it in "X" mode. To remedy the situation and allow the flight controller to be properly mounted, I made an adapter plate. Since I didn't have any fiberglass or carbon sheet to make one out of, I used a piece of ABS commonly found at any home improvement store for $0.79 or so- a plastic box cover.
|Plastic circular electrical box cover|
First, I placed the flight controller over a piece of paper and transferred the four mounting hole locations. Next, I used a straightedge to trace a line between diagonal holes to find the center. Then I used a compass to construct perpendicular lines to the diagonals I just created. Finally, I rotated the flight controller 45 degrees, lined the new perp. lines up with the mounting holes, then transferred the hole locations. Once the hole locations were set, I used a compass to create an inner and outer circle.
|Template taped on box cover|
Using this template I drilled each of the mounting screw holes, cut the outside with a bandsaw, and finally cut the center hole with a hole saw.
|Completed adapter plate|
|Adapter plate attached to Q450 frame with 4/40 SHCSs and 1/2" spacers|
|KK2.0 FC in place, top view|
|Note the rubber grommets for vibration absorption above and below the FC board|
Since I'm a horrible quad pilot and tend to run into trees, buildings and the ground often, I made a crude roll cage from a piece of 1" wide aluminum and bolted it to the Q450 frame. Crude but effective. It also makes a very nice carrying handle.
|Roll Cage / Carrying Handle in place|
Next steps- lights for night flight and FPV wiring!