No Level With Rotation (Yaw) with Pitch Tilted Down

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Items used...
SPECS...
Martinez v3 Board (FPV Community)
Firmware 48
RCTimer Gimbal
2212 Motors
Yes, the sensor is UPSIDE DOWN. (Seeing I am on v48)
GoPro Hero2
All Balanced without power

Settings Screenshot attached.

What steps will reproduce the problem?
1. Set Board to use A1 Pitch with the radio
2. Power up systems and Radio
3. Pitch the gimbal down say 45 degrees
4. Pick up gimbal and hold at level and rotate left and right with your hips to 
make a curve.

What is the expected output? What do you see instead?

Would expect gimbal to stay level even when tilted down.  Gimbal instead ROLLS 
out of level.  

If you have the pitch at level, no issue.  It gets worse the more it is pitched.

What version of the product are you using? On what operating system?

version .48.

Please provide any additional information below.

The issue is if you TILT down to look down even a little, you can no longer do 
a level yaw (rotate) with the coptor. When the gimbal is tiled down and you 
rotate the gimbal tries to adjust for the rotation and seeing it is at an angle 
looking down, it then totally move off level. 

Maybe one of the programmers needs to account for this as it might not have 
been thought of.
----------------

I have played with this a few hours this morning and can find no way to correct 
for this issue. 

You can see this issue if you have your board hooked into the board to be able 
to tilt the camera down to look down some. You do not even need to go far. So 
tilt it down, pick up the coptor, and just rotate back and fourth with your 
hips keeping the level. You will see the gimbal will ROLL out of level with 
each back and fourth movement. 

If you move the coptor side to side with your arms, not using your hips, it 
stays level. Moving your hips gives it an arc like if you were turning the 
coptor using yaw. So if you use your yaw to keep something in the shot as you 
move around it, you will go right off level. (It does NOT happen if you have 
the gimbal level and not tilted down.)

You can see the issue in this video when trying to video a 350Z Roadster.  You 
will note it goes out of level when you try to yaw (rotate) the quadcoptor.

http://youtu.be/WBE70aZ3Fpw

Original issue reported on code.google.com by da...@bott.net on 19 May 2013 at 5:42

Attachments:

• screenshot_487.png

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I have the same problem!

Original comment by Slavik...@gmail.com on 20 May 2013 at 12:49

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Just adding another video to show the issue more clearly...

http://youtu.be/SVVKvRStf-4

Hope you guys can fix this soon, as I need to shoot starting the second week in 
June.

Thanks

Original comment by da...@bott.net on 20 May 2013 at 4:51

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Have the same problem, gimbal would tilt somewhat every so often. This is with 
the same setup (RCTimer) as you. Today I dismantled the RCTimer gimbal itself, 
keeping the controller and motors and built a new simpler model. Using 049 
Alpha R45 and will report back on the tilt issue.

Original comment by nicc...@gmail.com on 29 May 2013 at 3:24

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exactly the same problem for me too.If I Unplug pitch control it works fine but 
obviously no control over pitch then plug pitch control back in and the problem 
is back

Original comment by bpdka...@gmail.com on 3 Jun 2013 at 6:44

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Hello,

This might not be of any help as its a old thread and I am using the GLB Gimbal 
but I had the same problem, turned out that I needed to do a 6 point 
calibration, a normal level calibration wasnt enough to correct it.

Original comment by Wilkinso...@googlemail.com on 11 Apr 2014 at 7:17

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Same problems here. Anybody found a solution in the meanwhile?

Original comment by Rene.Pat...@gmail.com on 14 Aug 2014 at 10:48