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 Robotics / Handy Board / 2584
2583  |  2585
Subject: 
Re: Servo as drive motor
Newsgroups: 
lugnet.robotics.handyboard
Date: 
Fri, 8 Aug 1997 17:47:25 GMT
Original-From: 
defreese@=avoidspam=gate.net
Viewed: 
1697 times
  
Chuck McManis wrote:

defreese@gate.net wrote:

        I have modified and connected 2 servo
motors to the handy. The speed of one is much
slower than the other. I swiched the motors around
(first in Port (0),and (2) ) and then the reverse
and the same motor is slower ... could I have fried
the caps on this --the slower motor or are servos
just this much different in speed.
Also I am operating them directly into the board
wo/ an H-bridge or anything else.

Because the servos are closed systems they don't have a
hard requirement that their motors run at the same speed,
however it would affect the slew rate which is spec'd so
they have to be reasonably close. If you zapped the capacitor
and turned it into a resistor you would know (it gets hot)
but it is also easy to replace. Use a 100v ceramic caps
since the flyback spark can have a high voltage.

--ChuckThanks Chuck,
I'll try to replace the caps and see if
there is an improvement. I was thinking that when I
melted the new leads to the motor I may have left
the iron on it for too long, thus burning up the
caps. I'm going over to my dad's shop to work on
putting the treads on my base so I'll mail back
later w/ progress.

Thanks,
Randy



Message is in Reply To:
  Re: Servo as drive motor
 
(...) Because the servos are closed systems they don't have a hard requirement that their motors run at the same speed, however it would affect the slew rate which is spec'd so they have to be reasonably close. If you zapped the capacitor and turned (...) (27 years ago, 8-Aug-97, to lugnet.robotics.handyboard)

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