http://www.instructables.com/id/ELEV-8/
Step 10:
Next, install the Hoverfly Open board onto the black plastic plate (Assembly Diagrams, page 6), but don't install the blue rubber grommets the same way I did…make sure
you push them into the board so they're exposed on both sides.
Don't over tighten these screws, since the grommets won't be able to absorb a lot of vibration if they're compressed too much.
Now flip to Assembly Diagrams page 7 and install the acrylic top plate before mounting the whole board assembly to the top frame. Pay attention to the orientation of the
Hoverfly board with respect to the red acrylic, and once that's all assembled, keep it off the bottom frame! We'll attach everything together once the wiring's done.
Step 11:
If you'd like to attach the included LEDs to your quad, now would be the time for that. One strip is red, and one is white (the ones with the yellow tinted LEDs are actually
white). Use your soldering iron to heat up the joint in the middle of each strip, breaking it in two.
Now solder and heat shrink an additional length of wire to the power and ground terminals on each of the four strips. Once everything's soldered up, peel the protective
sheet off each strip, and stick them onto the underside of each boom!
Don't worry about powering the LEDs just yet—we're going to wire them directly into the battery power so they're on whenever the quad's on.
Make sure the power and ground wires for each LED strip are long enough. I used 6–8" on mine.
