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**mattie-lodge** · 24-01-2013, 09:34 PM

Hi Don,

When I set my Vbar swashplate levels up I only set them at mid stick (one of the Vbar step setups)....

As for getting perfect positive and negative pitch ranges, that's down to your linkages being perfectly at right angles in the mid stick setup above !!

**milly0812** · 24-01-2013, 09:40 PM

Vstabi swash setup

Yes I've set it at mid stick but read some guys levelling it throughout the range like on a fb heli ?.

**Surinder Singh** · 24-01-2013, 09:42 PM

Click on the hat sign in the top corner. That will bring up the advanced menu.

Now when you lower the swash to the lowest point the controls will allow you to level the swash at the bottom using the arrow icons.

Then go full stick this will now highlight the swash top controls do the same adjustments for the swash at the top.

To get correct throws I usually adjust my links to get equal up and down movement. The amount of throw can be set in one of the menus with a slider.

If you have plus 16 then you could tune your pitch curve and skim some of the pitch off the top.

I'm trying to explain as best as I can from memory. I can get on my laptop tomorrow and give you precise instructions.

Surinder.

**jimmyhorns** · 24-01-2013, 09:44 PM

You cant go full +ve and full -ve in the swash menu (only have your swash at '0 degrees'. As Mattie says, it relies on you having your servos set at 90 degrees and the servos all having identical movement...

It shouldnt really matter if your geometry isnt a perfect 90 throughout, as any deviation would be corrected before you could see it by the vbar as there would be rotation about either the aileron or elevator axis.

If you are at 0 pitch with everything at 90, then you shouldnt be able to get +16 and -12, as the servos should move the same amount in both directions...... so perhaps something a little funky there. There is AFAIK no way to set a differential in the vbar settings. Are you sure that your Tx pitch curve is giving you 0 at one end and 100 at the other?...

**Andy from Sandy** · 24-01-2013, 09:45 PM

You cant go full +ve and full -ve in the swash menu (only have your swash at '0 degrees'. As Mattie says, it relies on you having your servos set at 90 degrees and the servos all having identical movement...

Then I am sorry to say but you are both wrong. lol.

I will assume this is a pro software only thing but when on the Trim setup page you click the expert button you will see that you can make the corrections for getting the swash level at maximum and minimum collective.

If you are 4 degrees out then you have a major problem with your setup I would suggest. I think you should be able to do better than that. When you are done if it is 1 degree out then you can take that out using the TX travel adjust on the collective channel.

**forza** · 24-01-2013, 09:46 PM

If the collective pitch is out by a degree or 2 and you're sure you have zero pitch at centre (and i'm sure you do Don) then you can use pitch travel adjust to even them out. You may find that at the setup stage to get the 100/ 100 on collective in the vbar you may have 103% / 100% in the radio. In this case you could drop the 103% to 100% to even out the pitch. The vbar will now show, for example 98/ 100.

**jimmyhorns** · 24-01-2013, 09:46 PM

Originally posted by Surinder Singh View Post

Click on the hat sign in the top corner. That will bring up the advanced menu.

Now when you lower the swash to the lowest point the controls will allow you to level the swash at the bottom using the arrow icons.

Surinder.

Ah, just checked that, and yes, thats how you can do it.

**Surinder Singh** · 24-01-2013, 09:48 PM

Sorry I forgot to mention I'm using the Pro version of software. Not sure if the expert setting are available in the standard version.

**milly0812** · 24-01-2013, 10:01 PM

Vstabi swash setup

Originally posted by Surinder Singh View Post

Sorry I forgot to mention I'm using the Pro version of software. Not sure if the expert setting are available in the standard version.

Thanks, yes I'm on pro and the pitch figs I gave where purely supposition but I have had them a little out on my 600 so thanks for the info forza ;-)

**Nick B** · 24-01-2013, 10:06 PM

Originally posted by forza View Post

If the collective pitch is out by a degree or 2 and you're sure you have zero pitch at centre (and i'm sure you do Don) then you can use pitch travel adjust to even them out. You may find that at the setup stage to get the 100/ 100 on collective in the vbar you may have 103% / 100% in the radio. In this case you could drop the 103% to 100% to even out the pitch. The vbar will now show, for example 98/ 100.

That's how i do it too.

**Surinder Singh** · 24-01-2013, 10:08 PM

If I have a degree or 2 out between top and bottom. I just use my pitch curves to compensate.

I'm not sure if adjusting the pitch travel is a good idea because the first stage of the vbar setup is to calibrate your sticks. I'm not sure if adjusting the pitch travel would have an adverse effect ?

Also from recollection vbar has a slider that will reduce and increase the amount of swash travel. I recall that the ideal is around 80 in the software ( in the green zone ). That's what vbar likes for it's control loops.

**forza** · 24-01-2013, 10:37 PM

Originally posted by Surinder Singh View Post

If I have a degree or 2 out between top and bottom. I just use my pitch curves to compensate.

I'm not sure if adjusting the pitch travel is a good idea because the first stage of the vbar setup is to calibrate your sticks. I'm not sure if adjusting the pitch travel would have an adverse effect ?

Also from recollection vbar has a slider that will reduce and increase the amount of swash travel. I recall that the ideal is around 80 in the software ( in the green zone ). That's what vbar likes for it's control loops.

Mr mel has advocated using this method for UNEVEN collective on another forum many times. If the pitch was even then yes you would reduce/ increase it on the slider.

**Surinder Singh** · 24-01-2013, 10:43 PM

Thanks for the clarification Forza.

I may use that method in that case.

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Vstabi swash setup

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