Hello
I have an issue when I try to set virtual phasing on a 5 blades 600 scale heli.
I have set the swashplate follower arm to have pushrods 90° straight down to the swashplate in order to obtain non mechanical phasing at all.
I have not any mixing between channel in tx.
All the settings in Brain software are properly completed.
I set phasing in the ccpm advanced menu.
Firstly, with reference blade holder parallel to the tail boom, I set phasing value to -60° in order to have no rotation when I move elevator stick forward and backward, and rotation when I move aileron stick left and right. That’s fine.
Secondly, with reference blade holder perpendicular to the tail boom, when I move elevator stick forward and backward, the blade holder rotate, it’s okay, but when I move aileron stick left and right, the blade holder rotate too. That’s the problem. I have to set phasing value to -30° to fix it, but the phasing is now wrong when the blader holder is parallel to the tail boom.
It seems there is somewhere a cross coupling between aileron and elevator, mechanical or electronic. It's very strange because, in step 5, I don't see any coupling between aileron and elevator channel during phasing test.
I don’t understand where the error is ?
Thanks for your help
What you write seems very strange to us. We understand that it has almost never been necessary to use the ‘Pahsing’ parameter and, in any case, only for very small values. The virtual rotation value of 60° that you use is ‘HUGE’! It even exceeds 45°.
We assume that you have the lateral drift problem in normal flight and with Auto Level disabled.
The first things that come to mind are:
a) Are you sure that when you lift the model from the centre of the main shaft, the model is balanced so that the main shaft is perfectly vertical to the ground?
b) Are you sure that the flight controller is fixed and aligned perfectly perpendicular to the main shaft?
To enable us to better assess remotely whether there may be other causes for your problem, by analysing the configuration of your flight controller, the input and output signals, and the components you use, but since we cannot be in front of the model with your transmitter in hand and the flight controller connected to a PC, you need to send us the configuration file of your flight controller, the events file, and one or more recorded logs (preferably the one from the crash).
We have explained how to download the files and send them to us immediately, even with your first requests for assistance, both here:
https://www.msh-electronics.com/forum/support/when-you-ask-for-support
and also here:
https://www.msh-electronics.com/faq/#Q01
For your specific problem, it would be helpful if the Recorded Log you send us was related to a flight in which there are prolonged passages in a perfectly frontal direction of the model.
Thank you.
Hello Ric
Thank you for reply.
It is the inital setting, and I don't want to take off the heli with this setting. So, I am unable to send you flight logs.
a) for the moment, the Trex 600 mechanic is out of the fuselage and balanced as a standard 3D heli. The only change is the 5 blades head.
b) as for my other 3D heli, the fbl module is perfectly perpendicular to the main shaft.
How can I provide you more information ?
If the model has never flown before, you can still send the file of the current configuration and a photo of the swashplate mechanics.
Thank you. I will do it.