fabien
lvl.2
France
Offline
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Hi,
check carefully the IMU alignment on te frame and the compass calibration ....
Quick explanation : the zenmuse gimbal uses the compass as an external reference. To see how it works, when you build a new machine, do not fix the compass/gps permanently yet, power up all the system and after initialization, just rotate the compass and see what happens on the Zenmuse..
It is very important to spend a little time to adjust the "offset" of the compass (as explained in the manual) to get the best performances out of the gimbal.
If you make your tests in your workshop or at home, you are surrounded by lot of metal and electric cables, computers.... The compass is not able to give accurate informations and the gimbal will not work correctly for sure especially of you rotate 360° on the pan you will notice a big deflection on roll and pitch. You will then understand how important it is to have a good compass calibration AND offset corectly setup .
When all of this is done, if you go fly and make a correct calibration of the compass , things should be working fine.
Only small limitation : even if you fly manual, it seems the Zenmuse uses anyway the compass datas. It can be a little problematic when performing aerial video or photo in heavy magnetic interferences areas. But you can then use the roll manual compensation to work things out.
Just make sure that you setup your sub trims on your transmitter for the gimbal, so that in the software, all values are as close to ZERO as possible when sticks are at neutral ( or you will experience drift on one or several axis after initialization).
last of all, make sure that when you update the firmware, you update both IMU and GCU firmwares. Last version seems to work pretty well and corrected ( for me and my customers machines ) the pan random kicks and the shutter issues.
Best regards,
Fabien
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