Subject:
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Re: is it possible to make a motor with a limited range of travel?
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Newsgroups:
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lugnet.robotics
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Date:
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Fri, 18 Jun 2004 17:11:20 GMT
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Reply-To:
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danny@*ihatespam*orionrobots.co.uk
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Viewed:
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910 times
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> > Thats kinda usefull except that I dont have enough clutch gears, touch
> > sensors or sensor inputs on my RCX :(
>
> Or you may use poor man's clutch gear: pulleys and slipping rubber belt.
> Or if
> your application does not need too much mechanical power, you can simply
> use a
> low power level on RCX output. With a power level 2 both the RCX and the
> motor
> can endure stalled condition for a long time.
There are some methods involving non-lego peices in the mix. One such
method, is to build a touch sensor using a microswitch from a mouse. Wire
this in the normally closed way - so when it is activated, it will open.
So the motor will go the other way- put a diode in line with the switch
poles.
Because of the size of these - you can probably fit it in a 3x2 brick.
You could cut a cable - and attach it either end. You should put some
decal on the brick to say which way round to use it(the direction of the
diode).
NC
_______.__/___.______
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_____________________
If you put it in the wrong way round - then of course the diode will
bypass always - and it would stop, and you wouldnt be able to reverse it.
This is a brave, but rewarding solution. I use a similar rig in a number
of places, and also in a compressor system - although the diode was
redundant in that context.
Orion
--
OrionRobots.co.uk - Robots from Sol to Sirius.
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