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 Robotics / Handy Board / 7398
7397  |  7399
Subject: 
Re: DC motor
Newsgroups: 
lugnet.robotics.handyboard
Date: 
Mon, 7 Feb 2000 03:24:23 GMT
Viewed: 
4687 times
  
Thanks for your reply, but before i remove all the elecrtonic part inside the
servo, i have cut out all the mechanical part, but the problem still happen, do
you know why ?? thanks..



In lugnet.robotics.handyboard, William Bain <montanawill@yahoo.com> writes:
> It sounds like you might have a mechanical, rather than
> electrical, problem.
> 
> Servos typically have some sort of stop nub on the gears so
> that they can't rotate past a certain point. If you don't cut
> off the nub with a hobby knife or saw, the motor will stall.
> 
> I've also heard of servos (small, lightweight models) that have
> gears that are only half round or so. I'm guessing that's not
> your problem, though.
> 
> Best of luck!
> 
> -- Will
> 
> 
> --- Way <way@polyu.hknet.com> wrote:
> > Hello.. i am a beginner of using HB and i have some problem
> > hope you can
> > help me.. thanks..
> > 
> > I have hacked a servo motor to become a DC motor (by removing
> > all
> > electronic parts inside the servo) and plugged the "motor"
> > into the
> > motor port. but when i use the command "fd, bk and motor", it
> > failed..
> > the motor can only rotate for about 1-2 sec, then its
> > stopped.. i don't
> > know why.. is the not enought current for the motor ?? i try
> > to replace
> > the L293D IC with L293B.. but the result is the same..
> > finally i try the
> > by-pass the Vc (pin 8) of the L293B from the HB and applied a
> > seperate
> > 6V battery to L293b pin 8(+) and pin 4 (-).. then the HB and
> > motor seem
> > can run smooth... but i would like to ask will this
> > modification damage
> > the HB ?? please help me.. thanks !!
> > 
> > way lam
> 
> 
> =====
> Any sufficiently advanced technology
> is indistinguishable from magic.
> -- Arthur C. Clark



Message is in Reply To:
  Re: DC motor
 
It sounds like you might have a mechanical, rather than electrical, problem. Servos typically have some sort of stop nub on the gears so that they can't rotate past a certain point. If you don't cut off the nub with a hobby knife or saw, the motor (...) (27 years ago, 5-Feb-00, to lugnet.robotics.handyboard)

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