Adding Throttle Mix

[cds1950]

Dave’s starting “template” I used for each of the multi-copters had some throttle mix for the other controls but not enough so I added more to the three I have. These are for a Devo 10. Select “Function Menu “then go down to “Mix to Throttle “and select it.
• Ladybird:o
Elevator
 Up +25%
 Down 0%
 Switch is “On”
Aileron
 Left +20%
 Right +20%
 Switch is “On”
Rudder
 Left 10%
 Right 10%
 Switch is “On”

[smuench]

I like the idea, but I'm questioning the down elevator at 0 - shouldn't this be 25% to match the other tilt (in fact why not 25% for all four Elevator and Aileron tilts?

[cds1950]

Since adding throttle for all upward movements is needed to over come the effects of gravity and delayed motor response my logic was that gravity helps out for down so that was what I used. You may well be right. Try it and let use know what you experience.

[smuench]

Since there is really no up or down (just tilt forward and backward) the mix that worked for me is 20% across the board.

A side note the most important step I took is adjusting the throttle curve so the midpoint is what ever the hover position is (small battery 20% and large battery 30%+camera 40%) then I do expo for the other points for example the large battery looks like this:
Point L = 0
Point 1 = 15% (-15)
Point 2 = 25% (-5)
Point M = 30% (what is need to hover)
Point 3 = 35% (+5)
Point 4 = 45% (+15)
Point H = 100%
This puts the stick in the center position when hovering and desensitizes the stick

Scott

[cds1950]

Thanks for this. I like your logic so I will give these values a try and see what happens. I love the way you can copy one configuration to a new model slot in the Devo 10 and then make changes to try new parameter values. That way you have the original and the changed version in the same Tx. Very quick and very easy.

I have also used the wireless copy from one Tx to another same model Tx. works fantastic.
Dale

[sefrez]

The mix to throttle, how exactly does it work? My assumption is that you can have the throttle increase or decrease in some relation to the other controls. Is this correct? If so, how do you read these percentages? For example, 25%; is this the amount the throttle increases by, at X control's maximum position? (X = Elevator, Aileron, etc) And if so, what type of curve is the relation? That is, how would the throttle be affected with a change in X (e.g. exponential, linear, etc)?

Sorry for all the questions. I just guess it would be good to know before messing with them as that's a hard way to learn and properly adjust. Thanks.

[cds1950]

Great questions.

I think I am using the wrong term. I am using the function "Mix to Throttle" and calling it throttle curve. So for the Mix to throttle it is linear. A simple multiplier. There is then the Throttle Curve function that allows you to define what affect is desired. It can be linear or exponential. And then there are five trigger points that you can use to define what you want at low, middle low, middle, middle high or high points in the throttle range so that they are fully customizable. It really depends on the transmitter you are using so yours may be different.