Subject:
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Re: micro motor sometimes stuck
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Newsgroups:
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lugnet.robotics
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Date:
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Fri, 11 Jun 1999 01:10:13 GMT
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Viewed:
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1041 times
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> > Why does the micro motor sometimes get stuck, and then I have to turn it by
> > hand to restart it?
>
> I can't tell you why technically, but it's a documented fact that it does.
> Use it only for low-torgue applications, and try not to stall it.
Well, I thought the reason that we always attach that pulley-with-rubber-
lining thing (See <http://w3.one.net/~hughesj/technica/registry/r_pulley.html>
for "friction pulley") to the micro motor is to avoid stalling the motor -- If
the torgue is too high the friction pulley will slip. Apparently the pulley is
not slippery enough.
Looks like I have to add a rubber band and another pulley in my design.
Still, I'd like to know the technical reason behind the stuck.
Thanks for your help,
Hao-yang Wang
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Message has 2 Replies:
 | | Re: micro motor sometimes stuck
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| Wow. I never noticed the rubber in those pulleys before. So you insert the axle just far enough to engage only the rubber lining? It seems that if you put the axle all the way through there is no slippage. (...) -- Did you check the web site first?: (...) (25 years ago, 11-Jun-99, to lugnet.robotics)
| | | Re: micro motor sometimes stuck
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| (...) I recall reading somewhere (but I can't remember where) that the micro- motor has an internal switch to protect it from stall current. If you hold it up to your ear when it's stuck and apply power, you can hear a small click, I think. Haven't (...) (25 years ago, 11-Jun-99, to lugnet.robotics)
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