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Scorpion Power ProModeler
HelicopterFlybarless Rotor Head SystemsBeastX › BeastX Plus strange tail drift
04-03-2017 11:57 PM  4 months agoPost 1
RFCxPerT

Heliman

Texas

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After lining up the tail linkage with good travel limits, the tail starts to drift to left turn slowly if leaving it alone one ground or in the air. Tail gain is set to about 30% on Futaba Tx. Does anyone know why?

All are set accordingly to gyro manual and servo specs.

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04-04-2017 12:09 AM  4 months agoPost 2
iyoy

Veteran

Bacolod City, Philippines

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What letter is your gain on the Microbeast?

You mentioned 30% on your Tx. Please state which letter lights up during initial power up? This indicates the actual gain on the Microbeast. It is the orange LED beside the letter. Microbeast suggests 'G' as a starting point then incrementally go to a greater letter until the tail starts to wag then back down one letter. I have 'L' on my TRex 700X but you need to setup a spare channel and a switch on your Tx to access the gain function of the Microbeast. Usually the Gear Channel and SF switch on a Futaba 14SG. You will be able to increase gain by increasing the endpoints of the Gear Channel to a greater percentage endpoint and reduce by doing the opposite. The gyro gain function on the Tx has no effect on the Microbeast's gain.

Refer to page 30 of the ALIGN Microbeast PLUS manual.

iyoy

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04-04-2017 12:10 AM  4 months agoPost 3
DemetriusUSN

Veteran

Virginia Beach, Va USA

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Try increasing the tail gain and see if that helps.

Minicopter Diabolo 700, TDR Rigid, Goblin Speed 700, Compass 6hvu, Logo 600se V2, Devil 380

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04-04-2017 12:15 AM  4 months agoPost 4
RFCxPerT

Heliman

Texas

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I forgot what letter but is probably d to e in hh mode. I can see the two different letters lighting up as switching from normal to IU1. Actually increasing the gain makes it worse. It has latest 4.2.

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04-04-2017 12:17 AM  4 months agoPost 5
DemetriusUSN

Veteran

Virginia Beach, Va USA

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Beastx wants the tail again between f and g to start with.

Minicopter Diabolo 700, TDR Rigid, Goblin Speed 700, Compass 6hvu, Logo 600se V2, Devil 380

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04-04-2017 12:20 AM  4 months agoPost 6
iyoy

Veteran

Bacolod City, Philippines

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Go to a higher letter

This will INCREASE your tail gain. Make sure you adjust both normal and hh mode. Flick the back and forth three times before attempting to fly after a change is made just to make sure the Microbeast senses the change. Sometimes it doesn't set and you might have to power off then on to re initialize.

iyoy

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04-04-2017 12:28 AM  4 months agoPost 7
iyoy

Veteran

Bacolod City, Philippines

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Servo Settings

Make sure you have the correct color codes for your servos in menu points B,C, D. You can check the correct color for your servo here:
http://wiki.beastx.com/index.php/Th...X_servo_list/en

iyoy

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04-04-2017 12:40 AM  4 months agoPost 8
iyoy

Veteran

Bacolod City, Philippines

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Normal and Heading Hold Mode

I could be wrong but I just set the same settings for both modes. If normal is 'G', HH is also 'G'. It works for me. Normal is used for centering the tail servo and to trim in hover only. Flying is done in HH mode. If it's a slow drift in hover then you might need to increase gain. If it's a wag at higher headspead and usually during fast forward flight then you need to decrease gain.

iyoy

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04-04-2017 12:45 AM  4 months agoPost 9
RFCxPerT

Heliman

Texas

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Read carefully my OP thread above. AGAIN everything was set correctly! No repetition of what I and others have said.

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04-04-2017 04:34 AM  4 months agoPost 10
EEngineer

Elite Veteran

TX

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How is your BeastX mounted?

Square to the frame?

Also, you might check if it's "stuck" down good.....if using double-sided tape.....on the Blade 450X(with the AR7200BX...kinda like a beastx)....weird things happened when the double-sided tape got old and unsticky.

FWIW

Logo 600SXs, 700XX, 800XX

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04-04-2017 04:52 AM  4 months agoPost 11
iyoy

Veteran

Bacolod City, Philippines

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Read carefully my OP thread above. AGAIN everything was set correctly! No repetition of what I and others have said.
Sorry to hear that and sorry for any trouble I might have caused.

iyoy

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04-07-2017 04:48 PM  4 months agoPost 12
nappyroots2182

Elite Veteran

Moline, il

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Letter G is a good start. Also adjust pushrod in non heading in a hover till the tail does not drift. That'll make the gyro work better.

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04-27-2017 02:52 PM  3 months agoPost 13
Richardmid1

rrProfessor

Leeds, England

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100% sure you are in HH mode? Status LED should be blue after initialization?

60% of the time, it works every time!

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04-28-2017 04:01 AM  3 months agoPost 14
RFCxPerT

Heliman

Texas

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Yes it IS very strange when it does drift slowly even without motor running, just after powering up in HH and about half a minute. Increasing tail gain makes it worse

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04-28-2017 05:43 AM  3 months agoPost 15
Pistol_Pete

rrProfessor

Seffner, FL

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It's normal for it to drift on HH on the bench.

You stated 30% gain in your transmitter but is Parameter B set to Transmitter?

What size heli, head speed and tail blade size?

~~Enjoying the hobby one flight at a time~~

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04-28-2017 10:15 AM  3 months agoPost 16
Richardmid1

rrProfessor

Leeds, England

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It shouldn't drift on the bench! Have you set the correct tail servo pulse width?

Try plugging in a different tail servo to eliminate a faulty servo.
You stated 30% gain in your transmitter but is Parameter B set to Transmitter?
It doesn't need to be in TX mode to set the gain via TX.

60% of the time, it works every time!

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04-29-2017 02:06 AM  3 months agoPost 17
RFCxPerT

Heliman

Texas

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The servo works fine in normal mode. There is no drift in my other helis.

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04-29-2017 07:16 PM  3 months agoPost 18
Richardmid1

rrProfessor

Leeds, England

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What is different in the setup and numbers in your tx to your other helis?

60% of the time, it works every time!

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04-29-2017 07:59 PM  3 months agoPost 19
Pistol_Pete

rrProfessor

Seffner, FL

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The servo works fine in normal mode. There is no drift in my other helis.
Does your other "no drifting" units also have the lastest V4.2?

Have you flown it in normal mode and it still drifts? Which could be mechanical set up but given "everything is set up correctly" and you dont have same issues in your other birds, then by deduction, it must be the FBL.

Im guessing that to suggest to swap tail servos with your other no drift units to verify such might be a moot point.

Best of luck!

Hopefully you will get your issues resolved here before Jul 1st.

~~Enjoying the hobby one flight at a time~~

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HelicopterFlybarless Rotor Head SystemsBeastX › BeastX Plus strange tail drift
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