Subject:
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Re: A LEGO double-throw switch?
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Newsgroups:
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lugnet.robotics
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Date:
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Wed, 21 Sep 2005 22:00:49 GMT
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Viewed:
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1161 times
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In lugnet.robotics, Brian Davis wrote:
> So I've got an application where a forklift loads a crate onto a conveyor
> belt. I could then start the conveyor belt up by having the forklift throw a
> polarity switch. What I would *like* is that when the crate gets to the other
> end, it somehow stops the conveyor motor again, (here's the tricky part),
> leaving the system in a state where the next forklift delivery can re-trigger
> the whole system from the "front end", as it were.
> Oh, did I mention I wanted to do this with just polarity switches, no RCX or
> other "intelligent" systems in the loop?
> The picture I've got in my mind is something like a light with two wall
> switches - change the state of either switch, it changes the state of the light.
> I'm thinking I can do it with a looong string from the terminal end back to a
> polarity switch at the head of the line, but it seems... clunky. Is there any
> electrical solution? Can I reproduce my household wiring in LEGO (I promise I'll
> keep the voltage... a *little* lower)?
So.... what was the final solution for this?
Kev
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Message has 1 Reply:
 | | Re: A LEGO double-throw switch?
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| (...) First, I learned a *lot*, so thank you all. As for which "solution" I ended up using, first disclaimer, I've not yet built a "crate conveyor". But some prototyping showed that the tank treads just have too much bending friction for what I (...) (19 years ago, 22-Sep-05, to lugnet.robotics)
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Message is in Reply To:
| | A LEGO double-throw switch?
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| So I've got an application where a forklift loads a crate onto a conveyor belt. I could then start the conveyor belt up by having the forklift throw a polarity switch. What I would *like* is that when the crate gets to the other end, it somehow (...) (19 years ago, 22-Aug-05, to lugnet.robotics)
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