Subject:
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Re: What good is the small gear motor?
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Newsgroups:
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lugnet.robotics
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Date:
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Wed, 14 Apr 1999 02:25:57 GMT
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Original-From:
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Doug Carlson <DCARLSON@NETavoidspam-INFO.COM>
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Viewed:
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1074 times
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Rob,
I have had similar problems with the red micromotor.
The motor will jam like this if the load is large enough to stall it.
I was attempting to make a 'distributed' motor using three micromotors
connected to the same power plate. This arrangement consistantly jammed
just as you mentioned.
For lighter loads, such as a dedicated motor for the fiber optic light module,
they are quite handy.
-- Doug
robkc wrote:
> I recently bought the small red gear motor to use in my panoramic camera
> mount. The purpose of the motor was to rotate a hammer to strike the camera
> shutter button after the camera had rotated. I wanted to use the small motor
> because I found that the larger motors were too heavy and shifted the centre
> of gravity too much which caused the camera to take lopsided pictures.
> The problem I have found is that sometimes, when the hammer strikes the
> button, if it stays on the button too long while the motor is energized, and
> consequently torque is applied, the motor sometimes stalls and doesn't
> retract when I try to rotate the motor in the other direction. As a result I
> get missed pictures.
> The amount of additional torque can be really small; its like the motor gets
> jammed. If I manually move the hammer off the button ,on the next rotation it
> will start working again (for a while), and sometimes it gets unstuck after
> several rotations of the camera (& consequently several attempts to move the
> hammer back & forth).
> Has anybody else found this problem with the motor?
> How can I use this motor to depress a button without causing it to get stuck,
> or is this motor useless for this kind of thing. (hence what good IS it?)
> Any advise would be greatly appreciated.
>
> thanks
> rob cairns
>
> PS I also bought the large turntable for my base. Now THATs a useful piece!
> --
> Did you check the web site first?: http://www.crynwr.com/lego-robotics
Doug Carlson
dcarlson@net-info.com
http://www.net-info.com/~dcarlson
--
Did you check the web site first?: http://www.crynwr.com/lego-robotics
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Message is in Reply To:
 | | What good is the small gear motor?
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| I recently bought the small red gear motor to use in my panoramic camera mount. The purpose of the motor was to rotate a hammer to strike the camera shutter button after the camera had rotated. I wanted to use the small motor because I found that (...) (25 years ago, 15-Apr-99, to lugnet.robotics)
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