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Old Feb 05, 2013, 09:21 AM
Winging it >
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Joined May 2006
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Quote:
Originally Posted by jyothibasu1k View Post
@lead feather, Ran, jacks

we are trying to work with flybar. the FCB/Gyro's are our last hope. i will be updating my trail results here..
If you can create a flybar system that works well for this craft it will be a major simplification. Check out the simple AirHogs VTOL toy in the video below.

The flybar is something I would have like to pursue, but I don't have access to a mchine shop.

Here are the features I would incorporate into a flybar rotor if I could build one:

1) Adaptable to ordinary propellers. If a prop breaks, it can be replaced easily
2) Adjustable flybar angle for tuning the stability
3) Adjustable flybar weights
4) Easily replacable flybar arms...to try different lengths and for repairs
5) Easily mounted to common motor shafts

Air Hogs Osprey -- transforming RC airplane & helicopter! (4 min 1 sec)
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Old Feb 06, 2013, 01:35 AM
1400 watt RW Zephyr
matwelli's Avatar
Taranaki New Zealand
Joined Sep 2003
1,336 Posts
Quote:
Originally Posted by jyothibasu1k View Post
i am unable to catch your point. how can i keep distance between pivot and cg.

if distance is kept then how can the fuselage hing to pivot and balance cg

looking side-on , not top down

looking side on , where is your CG in relation to the pivot point ? in the VERTICAL not horizontal plane

there needs to be seperation for control, and i think your vertical CG and pivot point are to close
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Old Feb 06, 2013, 11:21 AM
NoT iNtElLiGeNt
India, Andhra Pradesh, Guntur
Joined Jan 2011
126 Posts
still i am unable to get you...
can you tell me via any pic format. so that i get an clarity



Quote:
Originally Posted by matwelli View Post
looking side-on , not top down

looking side on , where is your CG in relation to the pivot point ? in the VERTICAL not horizontal plane

there needs to be seperation for control, and i think your vertical CG and pivot point are to close
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Old Feb 06, 2013, 01:48 PM
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Joined Oct 2004
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With your setup the CG should be below the rotor center when in VTOL configuration, and as low as possible. This is NOT to make the plane more stable, but to give you more response in pitch.
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Old Feb 06, 2013, 08:37 PM
NoT iNtElLiGeNt
India, Andhra Pradesh, Guntur
Joined Jan 2011
126 Posts
i hope that the cg and pitch center in my plane are in sameline and under the motor

Quote:
Originally Posted by Brandano View Post
With your setup the CG should be below the rotor center when in VTOL configuration, and as low as possible. This is NOT to make the plane more stable, but to give you more response in pitch.
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Old Feb 07, 2013, 03:10 AM
NoT iNtElLiGeNt
India, Andhra Pradesh, Guntur
Joined Jan 2011
126 Posts
got

kk board multi rotor 2.1 version can any one tell me how to use and program it
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Old Feb 07, 2013, 04:32 AM
vtol fan
nadine's Avatar
Joined Jul 2009
627 Posts
Hi,
i seen that you need more help.So,first you have to decide what do you want to do with kk board!?Because vtol stuf is a litlle bit difficult but not impossibile,that because some comands really need to be inverted.
If you want to make one plane like samson avatar,it will work but if you want to tilt forward more than 45,aileron with rudder became inverted!
For programing i use lazzy zero flash tool with good results.
Cheers
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Old Feb 07, 2013, 06:21 AM
NoT iNtElLiGeNt
India, Andhra Pradesh, Guntur
Joined Jan 2011
126 Posts
we want to auto stabilize yaw,roll,pitch and 2 motor's.

we instantly at the beginning... don't know what to do and how to operate it


Quote:
Originally Posted by nadine View Post
Hi,
i seen that you need more help.So,first you have to decide what do you want to do with kk board!?Because vtol stuf is a litlle bit difficult but not impossibile,that because some comands really need to be inverted.
If you want to make one plane like samson avatar,it will work but if you want to tilt forward more than 45,aileron with rudder became inverted!
For programing i use lazzy zero flash tool with good results.
Cheers
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Old Feb 07, 2013, 06:51 AM
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Can you link the exact KK board you purchased? Some version do quadcopter only; others can do many more configurations.
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Old Feb 07, 2013, 07:06 AM
NoT iNtElLiGeNt
India, Andhra Pradesh, Guntur
Joined Jan 2011
126 Posts
almost exact but company name is diff

http://www.hobbyking.com/hobbyking/s...ega168PA_.html



Quote:
Originally Posted by leadfeather View Post
Can you link the exact KK board you purchased? Some version do quadcopter only; others can do many more configurations.
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Old Feb 07, 2013, 07:14 AM
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Quote:
Originally Posted by jyothibasu1k View Post
almost exact but company name is diff

http://www.hobbyking.com/hobbyking/s...ega168PA_.html
The board you have linked is for quadcopters only. Is it possible to reflash this board to accommodate other configurations?
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Old Feb 07, 2013, 08:46 AM
NoT iNtElLiGeNt
India, Andhra Pradesh, Guntur
Joined Jan 2011
126 Posts
so can i use for tilt wing or not
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Old Feb 07, 2013, 09:00 AM
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Joined May 2006
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Quote:
Originally Posted by jyothibasu1k View Post
so can i use for tilt wing or not
If you are building a quadcopter VTOL you can make it work for controlling the fan motors. The tilt servo and other control surface servos will need to be controlled directly from the Rx.
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Old Feb 07, 2013, 09:10 AM
vtol fan
nadine's Avatar
Joined Jul 2009
627 Posts
Quote:
Originally Posted by jyothibasu1k View Post
we want to auto stabilize yaw,roll,pitch and 2 motor's.

we instantly at the beginning... don't know what to do and how to operate it
Hey,if you want only 2 motors to have like osprey,you need kk2 board with osprey twincopter firmware,from Lazzyzero repository!
But remember for tilting you need some spare channel from rx and not more than 45 tilt!!! this is the board:
http://hobbyking.com/hobbyking/store...rol_Board.html
and one video with osprey twincopter firmware:
mini Twincopter & KK2.0 V1.2 Control Board Vol.40 Test flight 2/2 (5 min 20 sec)

Or if you want,you could try to go only with gyros and mechanical mix,like this,but remaines only the problemm to translate from hovering to normal flight!:
http://www.rcgroups.com/forums/showthread.php?t=1577718
enjoy....
ps:the simple way is like Leadfeather sayed to you,to use system like Foam&tape does used in his plane with Flybar!!!!
http://www.rcgroups.com/forums/showthread.php?t=1319946
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Last edited by nadine; Feb 07, 2013 at 09:37 AM.
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Old Feb 07, 2013, 08:51 PM
NoT iNtElLiGeNt
India, Andhra Pradesh, Guntur
Joined Jan 2011
126 Posts
so only motors will be operated by kk board, but remaining servo's to be operated by receiver directly.

QUOTE=leadfeather;24061005]If you are building a quadcopter VTOL you can make it work for controlling the fan motors. The tilt servo and other control surface servos will need to be controlled directly from the Rx.[/QUOTE]
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