Model Boat Mayhem - Forum

Please login or register.

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

Author Topic: servo problem help  (Read 1365 times)

portside II

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 1,517
  • tugs at rest
  • Location: Howden.East Riding of Yorkshire.England Near the banks of the river Ouse
    • goole model boat club indi site
servo problem help
« on: April 17, 2010, 12:13:01 AM »

I am buliding another ship docking module tug , but this time with a pair of schottels .
So i ordered a pair of savox servos to handle the steering , they arived and were fitted and tested on the bench .
The first one was fine but when i plugged the second one in all it did was twitch realy bad , i switched them over , changed the radio gear / battery etc , i even plugged some more servos in but it still twitched .
I did notice one thing that when i plugged it into the 2.4ghz futaba reciever the green light went out and the red light blinked , but this did not happen with the other servo.
i have sent it back but they cannot find a problem , but they have sent me another one by return post .
So come on all you wizards what could be the problem , it has lost me .
daz
Logged
I like to build my boats to play with, not to just look pretty,so they dont !

Martin [Admin]

  • Administrator
  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 18,939
  • Location: Peterborough, UK
    • Model Boat Mayhem
Re: servo problem help
« Reply #1 on: April 17, 2010, 12:40:31 AM »

Have you received the replacement servo yet?
Is it the same?
Logged
"This is my firm opinion, but what do I know?!"    -   Mayhem FaceBook Group!

portside II

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 1,517
  • tugs at rest
  • Location: Howden.East Riding of Yorkshire.England Near the banks of the river Ouse
    • goole model boat club indi site
Re: servo problem help
« Reply #2 on: April 17, 2010, 04:59:30 PM »

Thanks for all the replies  %) .
Yes martin i received the servo this morning and have it fitted in the hull , no twitching etc , so there must have been a problem with the old one .
I will let steve webb models know as soon as i can .
Next job to fit the motors , battery and radio gear , then i can learn how to operate it  :o .
daz
Logged
I like to build my boats to play with, not to just look pretty,so they dont !

malcolmfrary

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 5,532
  • Location: Blackpool, Lancs, UK
Re: servo problem help
« Reply #3 on: April 18, 2010, 12:20:01 PM »

Seems to be standard practice with consumer electronics that when an item has a partial failure and it is returned, the problem never manifests itself in the retailer's testing laboratory, but the replacement they send does work.  Leaves me wondering whether they get tested or binned.
Logged
"With the right tool, you can break anything" - Garfield

portside II

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 1,517
  • tugs at rest
  • Location: Howden.East Riding of Yorkshire.England Near the banks of the river Ouse
    • goole model boat club indi site
Re: servo problem help
« Reply #4 on: April 18, 2010, 05:53:34 PM »

Maybe with standard servos it might be cost effective just to bin it , but these were 25.00 each and digital .
My local electrical store gave me a led disco light and a mini strobe that were returned faulty , the manufacturers said "bin them".
their loss my gain , but back to the servo , mine are working great so the returned one must have a fault and if i was the manufacturer i would like to know what it is.
daz
Logged
I like to build my boats to play with, not to just look pretty,so they dont !

Martin [Admin]

  • Administrator
  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 18,939
  • Location: Peterborough, UK
    • Model Boat Mayhem
Re: servo problem help
« Reply #5 on: April 18, 2010, 07:03:45 PM »

Many years ago when home computers were young, someone I knew ran a computer game shop.
Faulty returns were sent out twice, if they returned twice, they were then deems faulty.  >:-o



Seems to be standard practice with consumer electronics that when an item has a partial failure and it is returned, the problem never manifests itself in the retailer's testing laboratory, but the replacement they send does work.  Leaves me wondering whether they get tested or binned.
Logged
"This is my firm opinion, but what do I know?!"    -   Mayhem FaceBook Group!

Ticonderoga

  • Guest
Re: servo problem help
« Reply #6 on: April 26, 2010, 10:39:03 PM »

If these pieces of kit are mass produced, and I guess they are likely to be, then it will be down to the manufacturer's QA process.

In a mass production run, only a small, but statistically significant, number of units will be tested. As this is a game of stats (Lies, Dam Lies and then Statistics) there is a probability that a bad unit will get through testing.

Sometimes, some of us will be unlucky.......
Logged

triumphjon

  • Guest
Re: servo problem help
« Reply #7 on: May 04, 2010, 05:51:30 PM »

the joys of todays throw away society !  i think we are among a dieing breed who want to know how it works , or can we fix it again ! !
Logged
Pages: [1]   Go Up