RC India

RC Models => Multirotors => Topic started by: prateek katiyar on January 20, 2014, 05:23:55 PM

Title: how to recalibrate esc
Post by: prateek katiyar on January 20, 2014, 05:23:55 PM
can  anyone plz help me in recalibrating the escs..... i have calibrated them once by using receiver and transmitter but it was calibrated incorrectly when i move my throttle stick down the speed of my motors  increase and vice verse.
Title: Re: how to recalibrate esc
Post by: utkarshg13 on January 20, 2014, 05:25:26 PM
You need to reverse the throttle in your tx.
:hatsoff:
Title: Re: how to recalibrate esc
Post by: prateek katiyar on January 20, 2014, 05:43:30 PM
sir i did it thanks but my frnt motors are leaving the gound first, i mean during take off it is tilted.
Title: Re: how to recalibrate esc
Post by: utkarshg13 on January 20, 2014, 06:05:36 PM
Friend please don't call me Sir.. I don't deserve that... :hatsoff:
Kindly explain a little more about your problem...
Title: Re: how to recalibrate esc
Post by: prateek katiyar on January 20, 2014, 06:42:32 PM
actually wat happend there are 2 problems
1. when i increase my throttle suddenly one or two or all motors stop.
2. if motors dont stop then when quad it going to take off then its rear part leave the ground first and frnt remain on the ground.
m using kk5.5 multicopter, turnigy 9x tx, esc = fmt 30a, 1000kv motor.
i think this is due to battery as my battery is not charging above 8.5v.
Title: Re: how to recalibrate esc
Post by: utkarshg13 on January 20, 2014, 06:55:32 PM
1.) Please tell the specifications of your battery.
2.) Is it a x-copter or a + one?
3.) Have you build your own frame?
4.) Your problems seems like, improper calibration of ESC's and potentiometers of your KK Board.
Title: Re: how to recalibrate esc
Post by: IndianHobbyShop on January 20, 2014, 06:57:12 PM
kk5.5 = bad choice. Quite tricky and the pots acts strange at times on it. KK2.0/2.1 is great for beginners as it makes life much more easier since it have the LCD and you get to see exactly what you're doing.
Coming to the LoPo, If you're using a 3cell LiPo then i have bad news for you. One of the cells on your LiPo is dead and most probably permanently unusable.

Watch some videos on Youtube about LiPos and how do they function.
and get a LiPo alarm even before thinking about getting a new LiPo. :thumbsup:
Title: Re: how to recalibrate esc
Post by: prateek katiyar on January 20, 2014, 07:00:56 PM
i m using lipo 3cell 3500mah, it is a x copter and i have bought this frame.
Title: Re: how to recalibrate esc
Post by: utkarshg13 on January 20, 2014, 07:03:02 PM
I too agree that if it is a 3 Cell Lipo and your voltage is 8.4V then one cell is dead. also there are a number of steps to be followed after flashing the kk board... i hope you have flashed your board properly using kkflashtool.. which firmware?
Secondly, have you calibrated your ESC's , stick centering, setting gain of gyros, etc... have you followed all these steps.
Also, kindly post a few pics.
Title: Re: how to recalibrate esc
Post by: utkarshg13 on January 20, 2014, 07:09:10 PM
Do you have a lipo battery checker or low voltage buzzer. if not get it ASAP. Now, it seems that one cell of your battery i dead. Check the voltage of individual cells using a multimeter. if it is 8.5 then you'll have to replace your battery. then, you need to first do stick centering, then calibrate ESC's, adjust your gyros... look which side it is first rising. now compare it with the direction of KK board that whether you need to adjust pitch gain or roll gain on kk board... also, do not put props unless everything is done properly otherwise you'll hurt yourself.
Title: Re: how to recalibrate esc
Post by: prateek katiyar on January 20, 2014, 07:13:42 PM
no i have only calibrate my escs, and flashed my board by xcopter v4.7, aggresive kk by kapteikuk..... may u plz give me a brief idea of all the steps.
Title: Re: how to recalibrate esc
Post by: utkarshg13 on January 20, 2014, 07:17:38 PM
You are from Lucknow? Where do you live in lucknow ? Today, only I came to Allahabad from lucknow.
Title: Re: how to recalibrate esc
Post by: utkarshg13 on January 20, 2014, 07:19:39 PM
Firstly check your battery issue first. Replace it if needed.
Then try out the following link:
http://www.kkmulticopter.kr/index.html?modea=manual (http://www.kkmulticopter.kr/index.html?modea=manual)
Title: Re: how to recalibrate esc
Post by: prateek katiyar on January 20, 2014, 07:20:09 PM
i m from kanpur, right nw in rae bareli, rgipt college
Title: Re: how to recalibrate esc
Post by: prateek katiyar on January 20, 2014, 07:22:22 PM
how to set channels in tx turnigy 9ch means


1. Setting transmitter channels

CHANNEL   Aileron   Elevator   Throttle   Rudder
JR/SPEKTRUM   REVERSE   REVERSE   NORMAL   REVERSE
FUTABA   NORMAL   NORMAL   REVERSE   NORMAL
HITEC   NORMAL   REVERSE   NORMAL   NORMAL
Others                
Title: Re: how to recalibrate esc
Post by: utkarshg13 on January 20, 2014, 07:25:57 PM
Are you using mode 1 or mode 2? Throttle and rudder left?
Title: Re: how to recalibrate esc
Post by: prateek katiyar on January 20, 2014, 07:52:15 PM
mode 2,,,,, hmmm yes left
Title: Re: how to recalibrate esc
Post by: utkarshg13 on January 20, 2014, 07:54:05 PM
Ohk. Then just follow the convention, aileron-channel1, elevator-channel2, throttle-channel3, rudder-channel4
Title: Re: how to recalibrate esc
Post by: utkarshg13 on January 20, 2014, 08:03:21 PM
You can also go through youtube links of flite test.com... very helpful ones...
Title: Re: how to recalibrate esc
Post by: utkarshg13 on January 23, 2014, 12:13:43 AM
hey what's the progress of your quad. Is it done?
Title: Re: how to recalibrate esc
Post by: prateek katiyar on February 10, 2014, 01:52:09 PM
no its not i am having some problem in adjusting gyro pots. i dont know how to do it.