openrcforums

I have an issue when I set the expo with my PRO in delta config

I don't get the same servo displacement on both sides of the AIL , I suspect the different shift between CH 2 and 3

MP

I cannot see any specific problem, I just applied the Delta template and set the AIL expo to 70% and I see the same amount of change on the channel outputs.
Do you have differential set in the mixer?
Please double check the expo setting. You can set a different amount of expo on either side of the stick movement. If you have some AIL stick applied while setting the expo value, then only the one side will change, check the expo value is the same for both sides. Also check the dual rate values that have the same feature.

Mike

I have the same amount on the two AIL , you can see on the simulation:

CH02 +35%Ail Decalage(-35%) Expo (40)
+54%Ele
CH03 -54%Ele
+35%Ail Decalage(-15%) Expo(40)

MP

I've just tried those mixes in both eepskye and on a radio. The channel outputs look correct to me.
I would wonder about your offset (decalage) values. Are these causing your servo arms, when central, to NOT be at right angles to the servo. If they are NOT at right angles, you will get mechanical differential of the servo output.

Mike

Thanks Mike,

The arm of one servo was not at neutral, now I set the neutral with Ele shift and AFTER I set the Ail+Expo and now the travel is OK.

My mistake was to set first the arm neutral with Ail shift

MP