Model Boat Mayhem - Forum

Please login or register.

Login with username, password and session length.
Pages: [1]   Go Down

Author Topic: Servo moving further in one direction than the other  (Read 1329 times)

Fastfaz

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 450
  • Model Boat Mayhem is Great!
  • Location: Southport, United Kingdom
Servo moving further in one direction than the other
« on: May 11, 2015, 05:44:08 PM »

 Hi all,
     Has anyone had difficulty with a metal geared servo turning more in one direction than the other? I am just fitting the electrics (ESC, servo etc) into a Tid tug and after carefully mounting the servo so that it is level square and the linkage as straight as possible I find that the rudder moves further over in one direction to the other, I have tried moving the servo arm on the splines and made sure that the servo has centralised itself. Any ideas guys? All advice greatly appreciated.
      Cheers,
         Peter/Faz  :-)) :-)) :-)) :-)) :-)) :-)) :-))
Logged

Corposant

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 1,609
  • Location: Hampshire UK
Re: Servo moving further in one direction than the other
« Reply #1 on: May 11, 2015, 07:35:00 PM »

Peter

Does this happen with the rudder mechanism disconnected?

Mike
Logged

Tug-Kenny

  • Global Moderator
  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 7,717
  • Location: Newport. S Wales
Re: Servo moving further in one direction than the other
« Reply #2 on: May 11, 2015, 08:26:51 PM »


Which radio are using.  Does it have a centring lever system.  ?  Find the centre point.

Cheers

ken
Logged
Despite the high cost of living   .......... It remains popular

malcolmfrary

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 5,431
  • Location: Blackpool, Lancs, UK
Re: Servo moving further in one direction than the other
« Reply #3 on: May 12, 2015, 09:18:18 AM »

Is it the servo output arm moving a different number of degrees away from center each side or just the rudder?
If its the servo arm, then there is something odd in either the servo or the transmitter.  If its the rudder, then either its the linkage geometry or the tiller arm is running out of room to travel at one end.
Logged
"Trying is the first step towards failure" - Homer (Simpson)

Seaspray

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 1,257
  • Model Boat Mayhem is the best model boat site
  • Location: East Ayrshire Scotland
Re: Servo moving further in one direction than the other
« Reply #4 on: May 12, 2015, 12:17:51 PM »

Is the ESA the type that needs to be set up i.e. the travel of the stick evenly both ways and is your Tx trim tab centered

Logged

Netleyned

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 8,904
  • Location: Meridian Line, Mouth of the Humber
    • cleethorpes mba
Re: Servo moving further in one direction than the other
« Reply #5 on: May 12, 2015, 02:54:38 PM »

Is the ESA the type that needs to be set up i.e. the travel of the stick evenly both ways and is your Tx trim tab centered


So easy to not notice the trim on an analogue set, and even easier not to
notice on a digital set. Also End Point Adjustment has an effect on a programmable set.
If none of these and the linkages are fine then centre the servo without
the arm the put the arm on in the position with the rudder centred.
If the fault is still there try another servo.


Ned
Logged
Smooth seas never made skilful sailors
Up Spirits  Stand fast the Holy Ghost.
http://www.cleethorpesmba.co.uk/
Pages: [1]   Go Up