Showing posts with label mini cp. Show all posts
Showing posts with label mini cp. Show all posts

May 28, 2013

Suffering of mini cp

First. Weekend of high winds.
When It was slammed to the road after whirled up by being fanned by the wind,LED does not light, somewhere apparently has caused poor contact.
Coil that is attached to the receiver board was broken by the impact of the crash.
That causes contact failure.
Because I can not get the new coil.
Removing the coil,and is soldered to short.

Now, to enter power normally, and does not seem to be malfunction.
Next.
Last weekend, dew is on the grass after the rain in the airfield.
After the crash,When I changed the battery and took off ,Smoke came up from the main ESC.
Cause of the burnnig is not clear, but Dew causes to short circuit.
Amplifier of the main motor is burning.

Last.
This weekend.
I flight with replaceing ESC of the main motor.
I am flying in such a condition.


After about 5 flight in the good condition, wind became stronger gradually.
It was fanned to the altitude 20m quickly,and became out of control
The hold as it is, It crashed to the ground. It got into a state that the main motor does not rotate thereafter.
When I checked, I suspect the disconnection of the motor at first, but conclusion is failure of the ESC.
Since there is only plush10a ESC at hand, I decided to install it hurriedly.

It is the large size of the ESC considerably, but somehow installation is complete.
I seem to be able to fly next weekend in this.
Paper Body has also quite tired.


Apr 12, 2013

mini cp full brushless


Mini cp that changed to brushless motor had been derelict for a while.
Because the tail is unstable and  motor stops suddenly.
I've tried various method to improve.
As a result The symptoms is improved, and It got to fly straight somehow.
Simple two measures below,
1. To change BLHELI tail configuration.
2. To increase capacity of the battery prevent from cutting Motor.
I got to fly finally some decent mini cp.
Photo taken for the time being.



Internal structure


Specs
Genuine walkera receiver (firmware version up already)
main motor: 14000kv brushless
main esc: plush6A (firmware BLHELI 9.2)
tail motor: 12000kv brushless
tail esc: plush6A (firmware BLHELI 9.2)
2mm solid carbon angle rod 2cm tail boom extension
Carbon-made tail fin micro helicopter club
(With 7mmϕ tail motor housing)
Genuine main rotor walkera
Genuine tail rotor walkera
Genuine spindle shaft walkera (0.5mm Cut)
Nanotech 2S 300mah battery
Paper-canopy canopy that designed by Mr.kanta
Radio is DEVO8S (firmware Rewrite deviation2.23)
It's nearly beyond recognition.
Unfortunately the weather is cloudy in the high winds, But I tried to do Pirouette-Flip and do the retreat Upside down turning flight. During flight tail is stable.
It is ugly because I have no technique, video shows the aircraft flying straight somehow.