Taranis X9D plus

I want to be able to control three brushless motors from the Aileron/Elevator stick on the Taranis
The transmitter is Mode 2, and the LH stick will be disabled for safety.
The controls I want to create for the RH stick are:-
1).. Stick forward, left and right motors run with throttle control
2). Stick right, left motor only with throttle control
3) Stick left, right motor only with throttle control
4). Stick back, third motor only with throttle control
First question. Is it possible?
Second question, if it is, how do I program the Taranis?
I tried to make sense of the "mixing" section in the manual, but so far I've been unable to figure it out.
Any helpful suggestions would be welcome, apart from those telling me to get a Futaba transmitter.

I will have a go shortly. Interesting. I won't ask why because.........

Phillip Ford wrote: I will have a go shortly. Interesting. I won't ask why because.........

Phil - That was also my question "Why" - maybe Brian will eventually tell us what cunning machine he's working on.

Colin.

Maybe a "bot" Colin, although it does not seem to have the requirement of reverse. :lol: Although I think it would be easier using an Arduino

The video shows it all, Unfortunately I couldn't take in the programming sequence as the Taranis doesn't seem to have the facility to customise "curves" for the stick inputs. But perhaps I missed something?

Ah! Andy Newton from Down Under. Now I get it. But he does say this was way back in 2016 and does not have the radio or the config file anymore. Also he says "I dont have the boat setup or radio any more sorry. But I would do it differently now. Forward motors on Ch 1 and 2 controlled by Throttle stick, with differential thrust via the rudder stick, and reverse motor on ch 3 controlled with the elevator stick (just the down movement)"

The latter is what maybe I would've done.

Brian Jackson wrote: First question. Is it possible?
Second question, if it is, how do I program the Taranis?
I tried to make sense of the "mixing" section in the manual, but so far I've been unable to figure it out.
Any helpful suggestions would be welcome, apart from those telling me to get a Futaba transmitter.

1. Yes it's possible.
2. You're mostly going to be on your own there. This is because YOU need to understand how the programming works in order to be able to make changes when necessary.
3. Take a look at Mike Shellim's OpenTX clinic - rc-soar.com/opentx/

There is a lot of useful information about mixing for you to get your head round.

My initial thought is that you need to create 2 curves, one for the forward and one for the reverse motor. For the forward motors, a 3 point curve would be -100% (motor off) from full up elevator to centre. The curve would then go to +100% (motor on) with full down elevator. For the reverse motor, the curve would be opposite...and you'd probably want to slightly offset the point where the centre stick is so that you have a dead band so that the motors definitely stop with the stick centred.

You can then use the aileron (or rudder) stick to vary the amount that each of the forward motors turns. Mike Shellim describes this as 'volume controls' in his section on in flight adjusters - rc-soar.com/opentx/setups/adjuster/adjuster.htm Again, curves would be required so that moving the stick left would reduce power to the left motor without affecting the right one...and vice versa

Have fun!

Brian Jackson wrote: The video shows it all, Unfortunately I couldn't take in the programming sequence as the Taranis doesn't seem to have the facility to customise "curves" for the stick inputs. But perhaps I missed something?

On the transmitter you need to scroll to the mix screen...then edit the source (elevator) that you want to change the curve...then scroll down and change 'diff' to 'curve'. Once curve is selected you can choose which curve to use, so you will need to create a curve before editing or you'll have no curve select.

Thanks Phil and Mike for the advice. The single stick config. seemed like a "good idea" at first, but I suppose it could be a bit dangerous, far too easy to bump the right stick and get some unwanted action. I sat in a comfy armchair with the Taranis manual at 9.30 yesterday evening, I woke up at 1.30 this morning, I hadn't even turned one page and was none the wiser. Today, I'll try to stay awake long enough to achieve something!

I had considered using a open tx to control a scale excavator a while ago. It's that sometimes useful Instructables website! . So your plan could be simpler. Andy N says you need to use the left stick as well and I think he may right. I will see what i can achieve, it might not be that quick as DIY seems have resurfaced.