Tail Setup Issue

[hduk]

Hello Spartan Gurus,

I'm having a bit of a tail setup issue but cant figure what im doing wrong.....

I've got a Rex 450L dominator with a VX1n running v2.02. Ive followed the instructions to a tee but when it comes to setting the limits cw is set to approx 70 but ccw is set to 30 but really needs to be less.

The servo neutral point is at 90 degrees and mechanically the slider is center of travel at the neutral point, i cant figure why the limits are so far out.

Any ideas what i may have missed?

[Angelos]

Move the servo ball link closer to the center... or the tail ball link further out. Both will increase the required servo travel which will result to larger endpoints.

-Angelos

[hduk]

Hi Angelo's,

Thanks for the update jut one problem the ball on the servo arm is on the inner hole and the ball on the tail is as far out as it can go. Any other ideas?


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[tomatwalden]

Are you setting full throw on both sides - until the slider reaches its mechanical limits?

[hduk]

Throw needs reducing but 30 is lower limit needs to go lower. Opposite side is set to 70 and is ok. I'm guessing I need more like 15..... Centre point is perfect mech travel both ways is equal. ( not sure if I'm making sense)


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[tomatwalden]

Throw needs reducing but 30 is lower limit needs to go lower. Opposite side is set to 70 and is ok. I'm guessing I need more like 15..... Centre point is perfect mech travel both ways is equal. ( not sure if I'm making sense)

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How are you setting the throws? For some reason, I'm getting the impression that you're setting values in your transmitter or something !! ??

[tomatwalden]

To me, your values sound incredibly low - especially if you've got the ball links configured as Angelos states ... Have you seen this video to guide you through the process ?

Spartan Vortex VX1 - Tail Setup - YouTube

[hduk]

Sorry dude, setting on the datapod...... Tx is untouched, I guess I could reduce on tx but not sure if the vortex would like it..... Basically cw value on datapod is 70 ccw is 30 but still beyond the limit and yet with the servo at 90 the slider is at the centre of travel..... Hopefully I'm making sense ;-)


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[tomatwalden]

Sorry dude, setting on the datapod...... Tx is untouched, I guess I could reduce on tx but not sure if the vortex would like it..... Basically cw value on datapod is 70 ccw is 30 but still beyond the limit and yet with the servo at 90 the slider is at the centre of travel..... Hopefully I'm making sense ;-)

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Sounds like you're setting it right! When you say 30 is beyond the limit - limit of what? Are you getting servo binding or have you reached full travel on the slider already?

Are you doing anything different to Bob O's video?

[hduk]

30 is the neg limit but still too much throw....

Yeah good old bob o followed his setup, this is my 3rd unit a ok on my 550 and 700 I'll run back through it again just in case I've done something moronic.....


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[hduk]

Well i re-read manual and watched Bobs vid again everything is per the book, im really stuck i cant see how the one direction is so different to the other, plus adding the two values together im getting 120 which is way way out.

Angelos i checked the position of the balls but this is going to push me even further out if i increase the throw.

Any other suggestions? Really want to fly this thing.........

Only other think i can think of is reducing the end point for ccw, is that going to affect the vortex? not sure if it can take reduced end points (currently 100 / 100)

[Angelos]

1) Are you using the recommended servo size for that heli? Obviously slightly larger servos will have longer servo arms.
2) Please confirm that you are using the correct servo type. Some wrong combinations do work but will give different servo travel.

-Angelos

[Morus]

Hi hduk!
Set your end point to default 100%. After that try to move your servo on the tailboom till there is no bidding either sides
and only after this start to play with the % of the endpoints ...problem solved

You don't need to have 90 deg on the tail level arm and I think Bob mention this in the video that the 90deg is for the warp
you need to check the manual what is your model needs on this
the tail of the 450 trex is famously bad on the traveling...it will be uneven but that's not an issue for the vortex

[hduk]

1) Are you using the recommended servo size for that heli? Obviously slightly larger servos will have longer servo arms.
2) Please confirm that you are using the correct servo type. Some wrong combinations do work but will give different servo travel.

-Angelos

Hey Angelo's, completely stock kit build inline with the std instructions. If it's ok to reduce the end point on the tx I can do that but wasn't sure if it would upset the vortex?


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[hduk]

Can anyone confirm it's ok to reduce end point on the tx?


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