Subject:
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Re: RCX underwater
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Newsgroups:
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lugnet.robotics
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Date:
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Mon, 17 Jun 2002 22:07:02 GMT
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Viewed:
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679 times
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In lugnet.robotics, "Laura O'Grady" <l.ogrady@sympatico.ca> writes:
> While searching around recently for information on ROBOLAB I found this URL
> that lists available products for purchase. One that caught my eye was a
> case, called waterproof housing, to use the RCX underwater (it is the last
> item at the bottom of the page found at this URL:
> http://www.teachers.ash.org.au/dbrown/robolab/availr.htm).
>
> Has anyone on the list ever used this? I would assume you would have to
> encase the RCX, use the longest black wires with connector plates and build
> your robot from there. But what value is it if only RCX can go underwater?
> I would think that the motor could operate underwater unless it was
> encased so why have the RCX submersed? Has anyone seen any robots built
> using this thing? Thanks.
>
> Laura
I remember seeing an ad in some Oceanography magazine for a LEGO submarine
that used the RCX in a sealed housing. From the diagram (line drawing) it
looked like it used different motors. I also remember someone using a
submerged 9 volt geared motor. The motor should work fine underwater, but
the trick is getting the water back out to prevent corrosion. I think that
they sealed the shaft opening with petroleum jelly or something like that.
Other things you could do with a sealed RCX is monitor sensors. Using a
temperature sensor you could take water temp readings using your RCX.
Temperature does not change uniformly with depth, but rather in identifiable
layers. Knowing where the layers are is useful for finding underwater scaly
creatures. I don't know if I would be comfortable lowering my RCX into the
depths though.
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Message has 1 Reply:
 | | Re: RCX underwater
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| From my post to Re: NY aqueduct tunnel inspector bot (URL) ... The University of Rhode Island Oceanography Undergraduate/Graduate Program entry to the 2000 International Autonomous Underwater Vehicle Competion (AUVISI - (URL) won the competition (...) (22 years ago, 18-Jun-02, to lugnet.robotics)
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Message is in Reply To:
| | RCX underwater
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| While searching around recently for information on ROBOLAB I found this URL that lists available products for purchase. One that caught my eye was a case, called waterproof housing, to use the RCX underwater (it is the last item at the bottom of the (...) (22 years ago, 17-Jun-02, to lugnet.robotics)
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