To LUGNET HomepageTo LUGNET News HomepageTo LUGNET Guide Homepage
 Help on Searching
 
Post new message to lugnet.robotics.handyboardOpen lugnet.robotics.handyboard in your NNTP NewsreaderTo LUGNET News Traffic PageSign In (Members)
 Robotics / Handy Board / 7398
7397  |  7399
Subject: 
Re: DC motor
Newsgroups: 
lugnet.robotics.handyboard
Date: 
Mon, 7 Feb 2000 03:24:23 GMT
Viewed: 
1499 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 (...) (25 years ago, 5-Feb-00, to lugnet.robotics.handyboard)

2 Messages in This Thread:

Entire Thread on One Page:
Nested:  All | Brief | Compact | Dots
Linear:  All | Brief | Compact
    

Custom Search

©2005 LUGNET. All rights reserved. - hosted by steinbruch.info GbR