Subject:
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Re: Servo as drive motor
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Newsgroups:
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lugnet.robotics.handyboard
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Date:
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Fri, 8 Aug 1997 17:47:25 GMT
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Original-From:
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defreese@&NoSpam&gate.net
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Viewed:
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1383 times
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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
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Message is in Reply To:
 | | Re: Servo as drive motor
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| (...) 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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