Subject:
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Re: running the motors underwater
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Newsgroups:
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lugnet.robotics
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Date:
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Sun, 2 Jul 2000 16:07:08 GMT
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Original-From:
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CS Kwok <yl711@[NoMoreSpam]netvigator.com>
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Viewed:
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556 times
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Are your tank filled with salt water? What is the electro-conductivity
of your water?
By the way, sinking a motor under water will damage lubricant inside
the motor.
I suggest you to pack the whole mechanic into a metal case, and seal
the metal case by silicon. As metal can help to heat disposal under water.
Regards
CS Kwok
> -----Original Message-----
> From: news-gateway@lugnet.com [mailto:news-gateway@lugnet.com]On Behalf
> Of Ben Erwin
> Sent: Thursday, June 29, 2000 6:44 AM
> To: lego-robotics@crynwr.com
> Subject: running the motors underwater
>
> QUESTION STARTS HERE:
>
> But I was wondering if anyone has done any experimentation with blocking • up
> those holes at the back of the top of the gear motor and doing underwater
> tests then? These are the holes that allow you to stick in a small
> screwdriver and pop off the back panel (which doesn't do much good). Do
> these
> holes serve any purpose? i.e. if they help cool the motor or something • than
> perhaps I shouldn't block them up with silicon?
>
> Curious,
>
> Ben
>
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Message has 1 Reply:
 | | Re: running the motors underwater - update
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| Just regular Boston water. God knows what is in it. Anyway, I decided to use the older 4200 motors for the submarine... don't need to gear up and there aren't as many holes to plug up. I covered the entire bottom of the motors in sealent/adhesive (...) (24 years ago, 13-Jul-00, to lugnet.robotics)
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Message is in Reply To:
| | RE: running the motors underwater
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| I have run the Lego motors for long enough that they have gotten warm. This tells me that the holes you want to plug up would be needed as air vents. Not as much for circulation, but to let the air in the motor escape when it heats up and becomes (...) (24 years ago, 2-Jul-00, to lugnet.robotics)
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