andrey
lvl.2
Russia
Offline
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Hi everyone,For now we have the standard setup of M600 with RoninMX with BMPC4K connected via the SRW, and we are not happy with that system performance...
It seems everything is okay with the flying platform, but not okay with the gimbal stabilisation.
The first I found is - default camera profile settings for the ronin motors is absolutely unusable, as the autotune suggestions too, all of the settings should be adjusted manually.
The best settings setup I found for my camera setup is highest stiffness on all axes, until it starts to vibrate, with the strength parameter about 10-15 and outfilter/control set to 0.
In that case I almost totally eliminated high frequency vibration on motors, but I still have problems with shaking footage because of stock vibration dampers, I figured out it is too weak.
During the flight, when M600 starts to move or braking it`s tilting, so we have the ronin mounted below it with a heavy camera equiped, this makes a big lever pushing onto shock absorbers with angular force, not only up and down. After that, the gimbal reaches the limits of its movement, hitting one side of damper, then goes back ang hitting another end, this movement repeats several times, then stops. (like a big pendulum) At this moment we have serious g-force, which overrides the stiffness of the motors, even the camera is balanced perfectly. (because of its shape) The result is the image is shacking sideways.
We tried to modify stock rubber/spring dampeners with plastic, 3d-printed rings, for pre-load spings and make them harder. It helps, but not finally, it fixed only forward-backward movement of damping frame, but if you will try to fly sideways you will still have that hard hammering of the gimbal (slightly less, but still visible). Because it is a rectangular damping frame instead of square.
I'm afraid to imagine what I should to do with the heavy camera setup like RED with big lens and focus (+additional battery)...
Maybe should I try to remove the damper plate to mount the gimbal directly to the M600?
Do anyone have the same problems with that setup?
Any suggestions?
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