HELP ! I'm Grounded !

[sdmahr]

OK, new brushless on my Blade CP. No problem with the brushless....runs good.

Problem: Have a NON HEAD HOLDING gyro and a GWS speed contoller for tail motor. When I arm the tail motor ESC it wants to run FULL BLAST at mid stick and slow down as I move it right. It stops completely if I move beyond mid-point to the left.

FYI: I have a DX6

How do I make this thing work correctly?? I'm going NUTS ! !

[txflyer]

i would try changing the throttle curve for the rudder. you want a flat line, also check your travel adujustments for the rudder

i went through this till i just gave up. i use the 3n1 for the rudder with a direct drive and 3020 prop. brushless main. just got my first flight in with the dx6. im still working out bugs.

[sdmahr]

In the DX6 I don't see a "throttle curve" for the rudder. Sub-trim, trim, and end-points are all I see.....other than mixing of course.

[txflyer]

ok throttle curve for the rudder... god what was i thinking.

ok after you trim out the rudder your supposed to rebind the system. also the travel adjustment should reed -100 with full left stick then move the stick to full right it should say +100. if not then set to that, you might after its all up and running feel you want more from the tail then i think you riase the travel adjustment on the + side. i would try centering my rudder trims. then redo the tail esc programming. keep the throttle all the way down, and move stick full left, then what ever the instructions on the tail esc say aobut moving on to giving the stick full right. once that is done rebind.

i may be way off on this but its worth a shot. but im sure if that doesnt fix it some one will post up how to or be able to help you track down the problem.

[sdmahr]

OK, rudder travel is +100 and -100 (right and left). Rudder trim centered, (both regular and sub-trim). If I power up with stick full left, and then go far right, the motor starts on the way back to center. At center its going full blast and slows down as I move to the right. From center full left its dead.

Is anybody else using a separate ESC for the tail motor and the DX6? What do you have your settings at? This is starting to make me think I should have stayed stock ! (damn glitches were killing me)

[txflyer]

gino cp helped me out with that. i will post what he said...


"You do have an hh gyro don't you? If it's a G90 or a Telebee, don't connect gyro sense. This puts the gyro in HH mode. Remove all mixes pertaining to the rudder like revo mix.

To arm the tail esc, find a pmix that allows you to assign the Throttle Hold switch for activation. Then use Rudder as master and Rudder again as slave. Try a rate value of 75% and put an offeset of -125 or whatever your max offset is towards full left rudder.

In the above example, -125 gives the left rudder command. 75% is the max range for the slave rudder command. Increase this if tail esc doesn't arm.

On the DX7 it looks like this:

[PROG MIX2]
RUDD-RUDD ON
RATE +75%
0%
SW: HOLD
OFFSET: -125

So arming sequence is:

1. Turn on tx
2. Turn on Throttle Hold
3. Plug lipo
4. Wait for main esc, gyro, and tail esc to arm.
5. Apply a little left rudder because tail will spin a bit before take off. "

[txflyer]

you do have a non head holding gyro correct ?

if so in the dx6 book if i understood it correctly. you might want to play with the revo mixing..

so what i posted above might not help you..but then again it might. i went through this issue my self and just gave up then went back to the 3n1 running the rudder with g90 gyro

[sdmahr]

Yes, it is a NON HEAD HOLDING Gyro. Its a GWS PG03. I've had great luck with them in other applications.

I'll give your last post a shot.

THANKS ! !

Scott

[Gino CP]

Sounds like the rudder channel is reversed. When you move the rudder stick to the left, tail motor should slow down. If you move rudder stick to the right, tail motor should speed up. If that is ok and heli want to piro clockwise, your gyro is reversed. Change reverse switch of gyro. If it doesn't have one, move the gyro to react correctly.

Revo mix is tuned when you get the heli hovering ok. There will be two values for revo mix. One is the amount of rudder put when heli goes up. The 2nd is amount of rudder used when heli stops climbing or going down.

So put some mix for UP to keep tail from swinging to the right on climbs. Put some mix for Down when tail goes left when you stop the climb.

[sdmahr]

Rudder direction is O.K. The problem is I cannot get the ESC to arm without totally disrupting all my trim settings ! And when I get it to arm, it is wide open at mid-stick and off at full left, and off beyond center to the right. Because of this, I have to make some crazy trim adjustments to get it to stop spinning at mid-point.

The RVU and RDU mixing works fine and so does the gyro. Its the arming, trim, and half stick travel for input that is killing me. HELP ! ! ! :arggg: :arggg:

[txflyer]

well you do understand that the prop has to be spinning pretty fast in order to just hold the tail in hover. fast enough that when the heli isnt stilling on say concrete it would prolly spin around at a good pace. just try spolling up and see how everything reacts.. you may find that it flys just fine, just that when its on the ground it spins. so you hold left rudder alittle to slow the spinning down. on my setup my tail prop ( 3020 ) spins fast enough to make a humming sound

[sdmahr]

TX,

I understand but I would have to hold it WAY over to the left. At mid-stick it is WIDE OPEN. The mixing in RDU increases the tail motor speed as you throttle up and it works fine.....and is adjustable. What I cannot get done is to arm the ESC where the tail motor is off at full left, half spooled up at mid point, and balls-out at full right. If I could get this, I believe I would be close enough to fly.

[txflyer]

hmm when iwas trying to add in a tail esc i never had a problem arming it. i just followed esc setup instructions. try reprograming the tail esc. im out of ideas, like i said this is where i gave up, i didnt trust it enough to spool up and try to hover. after awhile i got itred of seeing 3 to 4 days of perfect flying weather go bye.

how did you setup the tail esc ? if your rudder trims where not centered during the very first time you gave the esc power and did the setup for the esc. i would assume wouldnt know where no power and full power is..

[sdmahr]

OK, it was the darn GYRO ! ! I ordered, installed, and am currently running the ESKY Head Lock Gyro, (readily available online for about mid $30.00 range).

Works like a DREAM ! I don't even have to touch anything for it to arm and it holds solid !

Nice Gyro, Nice Price, Problem solved. I guess the ESC just didn't like the PG03 Gyro by GWS.