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Easy Star Project By vrflyer Photos by vrflyer
I choose the EasyStar because its easy to install the
cam in front and get a perfect view point.
 Inside a Easy Star showing equipment placement. Photo: vrflyer
I want to feel like if I 'am inside a plane, so I made
a canopy and install the cam to see the nose of the planes in the picture.
The cam is mount on servo.
Many people report this plane is hard to turn, so I
installed ailerons and let the rudder without servo, but in the wind, the
tale was hard to turn. Now with ailerons and rudder, the planes fly very
well, even in high wind.
I use a brushless motor and lithium battery onboard.
The cam/TX are connected directly to the lithium battery. I use a linear
regulator LM2940t
I add hole in the nose and the canopy to get a good flow of air around components.
For the canopy, I made a vacuum thermoforming rig. I
disassembled a $20 oven to get the element, and recycle a suitcase for the
vacuum box. It work well and everything fit inside the suitcase when not
use.
The mold I use for the Easystar canopy is not perfect,
and you will see minor deformation in the video, with a better mold, it will
be perfect. Everything is paint flat black inside the cockpit to minimize
sun reflection. In the middle of the Easystar video “ Premiers vols”, you
will see reflection in the cockpit, but many part was not paint at that
time.
The cam servo is plug in the rudder channel, so I
control the movement of the cam with the rudder stick. The rudder servo is
plug in the channel 5. I mix the channel 5 with the ailerons channel. I can
toggle a switch to deactivate the mix, I use this feature only to do roll.
At first, I installed a voltmeter in front of the cam, but at first flight, I understand it was useless, the sound of the motor in the earphone is a good indicator of the remaining capacity of the battery. Also I expected use a wide angle lens, but after test, it's better to use a narrow angle when the cam is mount on servo, I choose the 52 deg lens.
I made a new servo mount for my camera, the previous
one was too fragile. I found the design on rc-tech website. It's simple and
robust. I worn the teeth of the tilt servo, so if the planes land hardly,
the cam will pivot, thus saving the servo gear. The pan servo have no screw
so it can disassemble. I love the Hitec servo, they have no free play in the
horn movement, normally all the brand have some loose. The pan servo is
Hitec S-81, this servo is the one for modification to 180 deg. The pot. have
wire, we can easily add 1Kohm resistor on each side of the pot. Inside the
servo, it have enough space for the added resistors. The camera is a new
KX-131 with bullet proof case. The lens is protect with a plastic bottle
with bottom removed..
I also cut the wingtips, the planes do not fly well
inverted, now it's a little bit more aerobatic.
The headset is plug into the r/c transmitter. A high
capacity battery is used. The momentary trainer switch (left) as been
interchange with the switch on the other side, now I have a normal switch as
trainer switch, so for the Gyro-control, I leave it in trainer position, and
when I toggle the switch to normal, the cam come to a preset center
position. The right switch is now a momentary switch, I rewire it to be able
to use it for the reset button of the Gyro-control, so to re-center the cam
in Gyro mode, I flip the switch, it also serve for programming of the
Gyro-control.
I install an infrared led in the center of the r/c transmitter for an automatic re-centering of the Gyro, it send a pulse beam in direction of the headset. On the headset, a small tube with a phototransistor at the end pick up the signal only when the head look straight. It work, but I don't like it, I don't like to see the cam rapidly moving to center when I record movie or normal use, I can re-center the cam better manually, but it's cool, I added a switch to disable it at will. The cavalry recorder is install on the r/c transmitter. A receiver with two video/audio output on the side of the headset.
The cavalry recorder is for every day use, most of the
time, the conditions are not good to make a movie, I use it if something
special happens. Last week, while I was flying at the "Bassin d'aération",
hundred of birds came to fly over me, it was a real dream, but, I had finish
to fly, my three battery was discharge... We never know what could happens,
perhaps another day they will come back
 But when condition are good, I will use a base station to record. I have an Archos AV500, it a high quality recorder. I also use the 8dbi patch antenna suggest by Mr.RC-cam. I mount a receiver inside a metal casing too big, but it work very well, so it perfect for a base station, with a tripod from my Aiptek camera.
For more info, questions and updates check it out here: http://www.rc-cam.com/forum/index.php?showtopic=1084
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