Setting up the VBasic Vlink for a Pattern Acrobatic Aircraft

I am planning to use the VBasic Vlink Neo for use in my new Pattern Acrobatic Aircraft.

Will be using 2 aileron servos(for left and right aileron) and 2 elevator servos(for left and right elevator halves, these servos need to be reversed with respect to each elevator half).

I also need to implement a "snap roll button" that preferably uses the left "spring loaded" switch above the throttle stick.

I am confused as to how to set this up in my VControl Touch transmitter, etc.

Many thanks in advance for any assistance.

Cheers

Hello,

so the elevator should work then as aileron and not as elevator?

regards (EN) / Gruss (DE)

Rainer Vetter

_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
Posting and answering - please use a PC and a standard keyboard. Answer all questions fully, take the needed time, don't forget probably requested attachments.

Für Posts und Antworten bitte einen PC und eine richtige Taststaur benutzen sowie alle Fragen vollständig abarbeiten. Nehmt Euch Zeit, beantwortet Rückfragen in Ruhe und vollständig.
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
Für Einzelkommunikation bitte ausschließlich Email verwenden! - PN, Messenger, Chat usw. werden nicht bearbeitet.
For single user communication please send a email only! PM, Messenger, Chat etc. won't be read.

Hi Gene,

I take it the elevator servos just run in different directions, because of their mounting positions left/right.
That's simple – connect the second elevator servo to a free connector, go to it's macrocell, make it a channel, select FC Elevator as an input, and adjust center, limits, direction and throw in that macrocell. You could even put a curve in between, if needed for matching the deflection, throughout the servo travel.

Two aileron servos per aileron, or one per, two in total? Technically same thing, and if you run out of physical connectors, add an Extender.

Snap roll, you could split the signal path using a multiplexer cell, normal flight has FC Aileron as an input, snap has an adjustable value as an input.
The Multiplexer cell is then input to all physical inputs, also the standard ones usually set up in the model setup/wing mixer.

If you would want to use the elevator servos to go opposite directions in snap roll, that would also be possible, but you would need separate multiplexers for each physical connector to begin with, one input FC elevator, the other input something else, same switch.

Kind regards

Eddi

Born to fly ...
forced to work.

Eddi E. aus G. schrieb:
-------------------------------------------------------
> Hi Gene,
>
> I take it the elevator servos just run in
> different directions, because of their mounting
> positions left/right.
> That's simple – connect the second elevator
> servo to a free connector, go to it's macrocell,
> make it a channel, select FC Elevator as an input,
> and adjust center, limits, direction and throw in
> that macrocell. You could even put a curve in
> between, if needed for matching the deflection,
> throughout the servo travel.
>
> Two aileron servos per aileron, or one per, two in
> total? Technically same thing, and if you run out
> of physical connectors, add an Extender.
>
> Snap roll, you could split the signal path using a
> multiplexer cell, normal flight has FC Aileron as
> an input, snap has an adjustable value as an
> input.
> The Multiplexer cell is then input to all physical
> inputs, also the standard ones usually set up in
> the model setup/wing mixer.
>
> If you would want to use the elevator servos to go
> opposite directions in snap roll, that would also
> be possible, but you would need separate
> multiplexers for each physical connector to begin
> with, one input FC elevator, the other input
> something else, same switch.
>
> Kind regards
>
> Eddi

"I take it the elevator servos just run in different directions, because of their mounting positions left/right. "

That is correct. Am using push/pull rods for both elevator halves, the elevator servos being mounted beneath
the horizontal stabilizer.

In addition, the elevator halves should always move in the same direction, even during a snaproll.

And, yes, the elevator half deflections must be EXACTLY matched throughout their travel range for
correct aerobatic performance.

"Two aileron servos per aileron, or one per, two in total?"

One aileron servo for the left aileron and another aileron servo for the right aileron....two total.

So......

I take it that that the Neo VBasic Vlink ESC input is for throttle, tail input is for the rudder servo....

Would then CH1 be used for 1 elevator half and CH4 be used for the other elevator half?

And would CH2 and CH3 then be used for the left and right ailerons?

For some reason, probably due to JR/Futaba aircraft radios(flew fixed wing aerobatics with these), the use of macrocells
is very non-intuitive for me.

Thanks for your help in this matter, Eddi.

Hi Gene,

I'd approach it from the beginning, not from the end

If you do a new setup (Plane), you can set it up completely but the second elevator servo.
In the setup assistant, select a free mixer (CH4 for example), make it an elevator control surface, adjust it, job done.

This is without matching the tail deflections yet.

See how it works. If you are lucky with the deflections, job done.
Otherwise, you know you have all the functions you need, so you can start tweaking.

Now (to be expected ...), you can go to the corresponding macrocell of that physical output (e.g. CH4), make it a _channel_ (for adjusting again, because now/this way you disconnect CH4 from the regular wing mixer) and select Input FC Elev – might need some adjustment with limits and throws to match roughly.

Now change the Input to an unused Macrocell (e.g. MC30), change that MC to type Curve Input FC Elev (this way, you add an extra calculation into that path), and use the curve to fine-adjust / match the deflections.

Then, we can approach the snap roll thing.

Take one of the aileron connector's MCs (e.g. CH2), make it a channel, set to FC Ail as an input temporarily, adjust center, direction, throws, limits.
Now change the input to an unused MC (e.g. MC31), go there, make it a Multiplexer, select your Selector (intended snap roll switch), and select again an unused Macrocell (e.g. MC32) for Input Lower (snap), and FC Ail for Input center and higher (or vice versa).

Last step, set MC32 to fixed, and dial in the snap value.

Same path for CH3 (other aileron servo). Could be that you can use the fixed value MC32 for both, could be (or more likely) that you select another unused MC for the fixed value for that aileron servo.

To add to the perversion you could insert a selector in both paths, so you can not snap roll e.g. in bank 1 and bank 2 (for safety reasons, we all mix up switches at times of stress) but only in bank 3. Would 'simply' mean to use another Multiplexer Macrocell as an input for the actual servo, select the bank switch to choose, select FC Ail as an input for bank 1 and 2 and MCXX (the snap mechanism set up above) as an input for bank 3.

Savvy?



Draw a diagram if required, no one's looking

Cheers

Eddi

Born to fly ...
forced to work.

Eddi E. aus G. schrieb:
-------------------------------------------------------
> Hi Gene,
>
> I'd approach it from the beginning, not from the
> end
>
> If you do a new setup (Plane), you can set it up
> completely but the second elevator servo.
> In the setup assistant, select a free mixer (CH4
> for example), make it an elevator control surface,
> adjust it, job done.
>
> This is without matching the tail deflections yet.
>
>
> See how it works. If you are lucky with the
> deflections, job done.
> Otherwise, you know you have all the functions you
> need, so you can start tweaking.
>
> Now (to be expected ...), you can go to the
> corresponding macrocell of that physical output
> (e.g. CH4), make it a _channel_ (for adjusting
> again, because now/this way you disconnect CH4
> from the regular wing mixer) and select Input FC
> Elev – might need some adjustment with limits
> and throws to match roughly.
>
> Now change the Input to an unused Macrocell (e.g.
> MC30), change that MC to type Curve Input FC Elev
> (this way, you add an extra calculation into that
> path), and use the curve to fine-adjust / match
> the deflections.
>
> Then, we can approach the snap roll thing.
>
> Take one of the aileron connector's MCs (e.g.
> CH2), make it a channel, set to FC Ail as an input
> temporarily, adjust center, direction, throws,
> limits.
> Now change the input to an unused MC (e.g. MC31),
> go there, make it a Multiplexer, select your
> Selector (intended snap roll switch), and select
> again an unused Macrocell (e.g. MC32) for Input
> Lower (snap), and FC Ail for Input center and
> higher (or vice versa).
>
> Last step, set MC32 to fixed, and dial in the snap
> value.
>
> Same path for CH3 (other aileron servo). Could be
> that you can use the fixed value MC32 for both,
> could be (or more likely) that you select another
> unused MC for the fixed value for that aileron
> servo.
>
> To add to the perversion you could insert a
> selector in both paths, so you can not snap roll
> e.g. in bank 1 and bank 2 (for safety reasons, we
> all mix up switches at times of stress) but only
> in bank 3. Would 'simply' mean to use another
> Multiplexer Macrocell as an input for the actual
> servo, select the bank switch to choose, select FC
> Ail as an input for bank 1 and 2 and MCXX (the
> snap mechanism set up above) as an input for bank
> 3.
>
> Savvy?
>
>
>
> Draw a diagram if required, no one's looking
>
> Cheers
>
> Eddi

Thnaks Eddi

I will keep you posted.

Hi, Eddi

I think we have a misunderstanding as to what a snap roll is.

A snap roll is when both aileron, elevator, and rudder is used at the same time.

Either all to the right or all to the left.

The snap roll lever is used to make this occur.

Also, I don't want this bank sensitive....I want it to work in all banks.

Cheers

BTW, I got the dual ailerons, dual elevators, and rudder working.
It was so easy, even I could do it......lol



1 mal bearbeitet. Zuletzt am 29.09.2020 19:35 von GeneG.

Except the trim pots don't work.

Hi Gene,

you can do the same thing as mentioned above for all physical outputs (servos, control surfaces).

Then, you would make the physical output cells a multiplexer, assign a switch, assign the original input FC XXX (Flicht Control Ail/Ele/Rudd) to two switch positions (for normal flying) and a Fixed value cell to the third switch position (or several, because you might want/need different fixed values for the respective physical outputs or servos), and dial in the value so the control surface goes to the intended position.

Try with one control surface (e.g. TAIL/Rudder servo), once you got the hang of it, do it accordingly to the others.

Kind regards

Eddi

Born to fly ...
forced to work.

Hi. Eddi

I forgot to add that I set up Option 1(switch 4...just above the elevator stick)
using the Kyle Dahl youtube video(VC Touch) tutorial to implement "flaperons".

https://uroehr.de/vtube/cat/macrocells-examples/video/macrocells-tutorial-complex-mixers-activated-by-switch

Now I want to implement "snap roll lever(simultaneous throw of aileron, elevator, and rudder using
Option 2(switch 6).

I cannot find a youtube video tutorial(using VC Touch) as a guide to do this.

Any help on this matter would be greatly appreciated and is worth 2 steak dinners.

Thanks in advance.

Cheers

Hi Gene,

I think you got me with the Steak Dinners let's see if I can get my date book filled ^^

Now let's see if someone beats me to it, I will look into it and reply in your cookbook-thread.

Kind regards

Eddi

Born to fly ...
forced to work.

Hi, Eddi

I hope you like nice thick ribeye steaks.

LOL

Thanks for your help.

Cheers