Water resistant motor

A

AA Institute

Guest
Hi,
Can someone please tell me if there's a small, *water proof* DC motor
available to buy which I can leave permanently outdoors? Even worse,
it will get splashed by the waters in my miniature "lake" projects as
depicted here:-

http://uk.geocities.com/aa_spaceagent/LakeEuropa.html#Hydrobot

(That's a large *pond* in an isolated location... hence I gave it a
pet name of "Lake Europa"!)

Thanks
AAI
 
Looking at your site, how about a marine sump pump? Might fit the bill, is
cheap, avalible all over the place, and could be hidden below the surface of
the water.

"AA Institute" <abdul.ahad@ntlworld.com> wrote in message
news:adbf5bc1.0410030110.30e804ff@posting.google.com...
Hi,
Can someone please tell me if there's a small, *water proof* DC motor
available to buy which I can leave permanently outdoors? Even worse,
it will get splashed by the waters in my miniature "lake" projects as
depicted here:-

http://uk.geocities.com/aa_spaceagent/LakeEuropa.html#Hydrobot

(That's a large *pond* in an isolated location... hence I gave it a
pet name of "Lake Europa"!)

Thanks
AAI
Click to expand...
 
Ian Stirling <root@mauve.demon.co.uk> wrote in message news:<415fca9f$0$42212$ed2e19e4@ptn-nntp-reader04.plus.net>...
In sci.electronics.design AA Institute <abdul.ahad@ntlworld.com> wrote:
Hi,
Can someone please tell me if there's a small, *water proof* DC motor
available to buy which I can leave permanently outdoors? Even worse,
it will get splashed by the waters in my miniature "lake" projects as
depicted here:-

Yes.
Torque, RPM, budget?
Click to expand...
Hi Ian,

The motor needs to be something very basic, small and 'toy-like'
actually. It just needs to run off 4 x AA batteries or a 9 volt PP3.
I just want it to keep the water surface stirring enough to stop the
pond from freezing over completely, and endangering the fish.

The motors of this type sold in Maplin (UK) are not water-proof, and
when the stirring platform takes a dive into the water during a rain
storm, the motor just ceases up and rusts. Budget... a couple of
pounds!

Thanks
Abdul
 
I read in sci.electronics.design that AA Institute
<abdul.ahad@ntlworld.com> wrote (in <adbf5bc1.0410031012.181b6b1b@postin
g.google.com>) about 'Water resistant motor', on Sun, 3 Oct 2004:

The motors of this type sold in Maplin (UK) are not water-proof, and
when the stirring platform takes a dive into the water during a rain
storm, the motor just ceases up and rusts. Budget... a couple of pounds!
Click to expand...
You can get a plastic box rated IP66 or better from Farnell for a pound
or three. Put your motor in it and make your float such that the motor
is 150 mm above the water. The motor spindle can be 150 mm long with
little problem, especially if you fit a simple guide, not a precision
bearing, at the watery end.
--
Regards, John Woodgate, OOO - Own Opinions Only.
The good news is that nothing is compulsory.
The bad news is that everything is prohibited.
http://www.jmwa.demon.co.uk Also see http://www.isce.org.uk
 
"John Woodgate" <jmw@jmwa.demon.contraspam.yuk> schreef in bericht
news:nVEMzOLkSFYBFwrZ@jmwa.demon.co.uk...
I read in sci.electronics.design that AA Institute
abdul.ahad@ntlworld.com> wrote (in <adbf5bc1.0410031012.181b6b1b@postin
g.google.com>) about 'Water resistant motor', on Sun, 3 Oct 2004:

The motors of this type sold in Maplin (UK) are not water-proof, and
when the stirring platform takes a dive into the water during a rain
storm, the motor just ceases up and rusts. Budget... a couple of pounds!

You can get a plastic box rated IP66 or better from Farnell for a pound
or three. Put your motor in it and make your float such that the motor
is 150 mm above the water. The motor spindle can be 150 mm long with
little problem, especially if you fit a simple guide, not a precision
bearing, at the watery end.
Click to expand...
Or peanut butter jars. IP67 and cheaper ;)

--
Thanks, Frank.
(remove 'x' and 'invalid' when replying by email)
 
I read in sci.electronics.design that Frank Bemelman <f.bemelmanx@xs4all
..invalid.nl> wrote (in <4160593d$0$43451$e4fe514c@news.xs4all.nl>) about
'Water resistant motor', on Sun, 3 Oct 2004:
"John Woodgate" <jmw@jmwa.demon.contraspam.yuk> schreef in bericht
news:nVEMzOLkSFYBFwrZ@jmwa.demon.co.uk...
I read in sci.electronics.design that AA Institute
abdul.ahad@ntlworld.com> wrote (in <adbf5bc1.0410031012.181b6b1b@postin
g.google.com>) about 'Water resistant motor', on Sun, 3 Oct 2004:

The motors of this type sold in Maplin (UK) are not water-proof, and
when the stirring platform takes a dive into the water during a rain
storm, the motor just ceases up and rusts. Budget... a couple of pounds!

You can get a plastic box rated IP66 or better from Farnell for a pound
or three. Put your motor in it and make your float such that the motor
is 150 mm above the water. The motor spindle can be 150 mm long with
little problem, especially if you fit a simple guide, not a precision
bearing, at the watery end.

Or peanut butter jars. IP67 and cheaper ;)

The lids go rusty.
Click to expand...
--
Regards, John Woodgate, OOO - Own Opinions Only.
The good news is that nothing is compulsory.
The bad news is that everything is prohibited.
http://www.jmwa.demon.co.uk Also see http://www.isce.org.uk
 
"John Woodgate" <jmw@jmwa.demon.contraspam.yuk> wrote in message
news:VHjgH3N5OGYBFwdi@jmwa.demon.co.uk...
| I read in sci.electronics.design that Frank Bemelman <f.bemelmanx@xs4all
| .invalid.nl> wrote (in <4160593d$0$43451$e4fe514c@news.xs4all.nl>) about
| 'Water resistant motor', on Sun, 3 Oct 2004:
| >"John Woodgate" <jmw@jmwa.demon.contraspam.yuk> schreef in bericht
| >news:nVEMzOLkSFYBFwrZ@jmwa.demon.co.uk...
| >> I read in sci.electronics.design that AA Institute
| >> <abdul.ahad@ntlworld.com> wrote (in
<adbf5bc1.0410031012.181b6b1b@postin
| >> g.google.com>) about 'Water resistant motor', on Sun, 3 Oct 2004:
| >>
| >> >The motors of this type sold in Maplin (UK) are not water-proof, and
| >> >when the stirring platform takes a dive into the water during a rain
| >> >storm, the motor just ceases up and rusts. Budget... a couple of
pounds!
| >>
| >> You can get a plastic box rated IP66 or better from Farnell for a pound
| >> or three. Put your motor in it and make your float such that the motor
| >> is 150 mm above the water. The motor spindle can be 150 mm long with
| >> little problem, especially if you fit a simple guide, not a precision
| >> bearing, at the watery end.
| >
| >Or peanut butter jars. IP67 and cheaper ;)
| >
| The lids go rusty.
| --
| Regards, John Woodgate, OOO - Own Opinions Only.
| The good news is that nothing is compulsory.
| The bad news is that everything is prohibited.
| http://www.jmwa.demon.co.uk Also see http://www.isce.org.uk

Buy ones with plastic lids...... silly!

DNA
 
"John Woodgate" <jmw@jmwa.demon.contraspam.yuk> schreef in bericht
news:VHjgH3N5OGYBFwdi@jmwa.demon.co.uk...
I read in sci.electronics.design that Frank Bemelman <f.bemelmanx@xs4all
.invalid.nl> wrote (in <4160593d$0$43451$e4fe514c@news.xs4all.nl>) about
'Water resistant motor', on Sun, 3 Oct 2004:
"John Woodgate" <jmw@jmwa.demon.contraspam.yuk> schreef in bericht
news:nVEMzOLkSFYBFwrZ@jmwa.demon.co.uk...
I read in sci.electronics.design that AA Institute
abdul.ahad@ntlworld.com> wrote (in
adbf5bc1.0410031012.181b6b1b@postin
g.google.com>) about 'Water resistant motor', on Sun, 3 Oct 2004:

The motors of this type sold in Maplin (UK) are not water-proof, and
when the stirring platform takes a dive into the water during a rain
storm, the motor just ceases up and rusts. Budget... a couple of
pounds!

You can get a plastic box rated IP66 or better from Farnell for a pound
or three. Put your motor in it and make your float such that the motor
is 150 mm above the water. The motor spindle can be 150 mm long with
little problem, especially if you fit a simple guide, not a precision
bearing, at the watery end.

Or peanut butter jars. IP67 and cheaper ;)

The lids go rusty.
Click to expand...
You should cover the lids with peanut butter. The AA institute has a
rather limited budget, so we need to be a bit creative.

--
Thanks, Frank.
(remove 'x' and 'invalid' when replying by email)
 
"John Woodgate" <jmw@jmwa.demon.contraspam.yuk> wrote in message
news:C3SlbbP+yGYBFwdf@jmwa.demon.co.uk...
| I read in sci.electronics.design that Genome <genome@nothere.net> wrote
| (in <CNZ7d.639$ST4.564@newsfe6-gui.ntli.net>) about 'Water resistant
| motor', on Sun, 3 Oct 2004:
|
| >Buy ones with plastic lids...... silly!
|
| Actually, glass is a better enclosure material than peanut butter.
| Greater useful temperature range.
| --
| Regards, John Woodgate, OOO - Own Opinions Only.
| The good news is that nothing is compulsory.
| The bad news is that everything is prohibited.
| http://www.jmwa.demon.co.uk Also see http://www.isce.org.uk

Jesus fucking wept.

Thats why they put the peanut butter inside the jar!

DNA
 
"John Woodgate" <jmw@jmwa.demon.contraspam.yuk> wrote in message
news:VHjgH3N5OGYBFwdi@jmwa.demon.co.uk...
I read in sci.electronics.design that Frank Bemelman <f.bemelmanx@xs4all
.invalid.nl> wrote (in <4160593d$0$43451$e4fe514c@news.xs4all.nl>) about
'Water resistant motor', on Sun, 3 Oct 2004:
"John Woodgate" <jmw@jmwa.demon.contraspam.yuk> schreef in bericht
news:nVEMzOLkSFYBFwrZ@jmwa.demon.co.uk...
I read in sci.electronics.design that AA Institute
abdul.ahad@ntlworld.com> wrote (in
adbf5bc1.0410031012.181b6b1b@postin
g.google.com>) about 'Water resistant motor', on Sun, 3 Oct 2004:

The motors of this type sold in Maplin (UK) are not water-proof, and
when the stirring platform takes a dive into the water during a rain
storm, the motor just ceases up and rusts. Budget... a couple of
pounds!

You can get a plastic box rated IP66 or better from Farnell for a pound
or three. Put your motor in it and make your float such that the motor
is 150 mm above the water. The motor spindle can be 150 mm long with
little problem, especially if you fit a simple guide, not a precision
bearing, at the watery end.

Or peanut butter jars. IP67 and cheaper ;)

The lids go rusty.
----------
Click to expand...
You haven't bought peanut butter for a while- nowadays both jar and lid are
plastic.-at least the one marked "kraft" in my pantry is made this way :)
--
Don Kelly
dhky@peeshaw.ca
remove the urine to answer

--
Regards, John Woodgate, OOO - Own Opinions Only.
The good news is that nothing is compulsory.
The bad news is that everything is prohibited.
http://www.jmwa.demon.co.uk Also see http://www.isce.org.uk
Click to expand...
 
I read in sci.electronics.design that Genome <genome@nothere.net> wrote
(in <6r_7d.664$ST4.166@newsfe6-gui.ntli.net>) about 'Water resistant
motor', on Sun, 3 Oct 2004:
"John Woodgate" <jmw@jmwa.demon.contraspam.yuk> wrote in message
news:C3SlbbP+yGYBFwdf@jmwa.demon.co.uk...
| I read in sci.electronics.design that Genome <genome@nothere.net> wrote
| (in <CNZ7d.639$ST4.564@newsfe6-gui.ntli.net>) about 'Water resistant
| motor', on Sun, 3 Oct 2004:
|
| >Buy ones with plastic lids...... silly!
|
| Actually, glass is a better enclosure material than peanut butter.
| Greater useful temperature range.
| --
| Regards, John Woodgate, OOO - Own Opinions Only.
| The good news is that nothing is compulsory.
| The bad news is that everything is prohibited.
| http://www.jmwa.demon.co.uk Also see http://www.isce.org.uk

Jesus fucking wept.

Thats why they put the peanut butter inside the jar!

No, FB proposed:
Click to expand...

Or peanut butter jars. IP67 and cheaper ;)
Click to expand...
No mention of any glass.
--
Regards, John Woodgate, OOO - Own Opinions Only.
The good news is that nothing is compulsory.
The bad news is that everything is prohibited.
http://www.jmwa.demon.co.uk Also see http://www.isce.org.uk
 
I read in sci.electronics.design that Don Kelly <dhky@peeshaw.ca> wrote
(in <Xm38d.584544$M95.404528@pd7tw1no>) about 'Water resistant motor',
on Mon, 4 Oct 2004:

You haven't bought peanut butter for a while- nowadays both jar and lid
are plastic.-at least the one marked "kraft" in my pantry is made this
way :)
Click to expand...
I haven't seen any in UK yet, but I do have liquid honey in a plastic
squeezy bottle. It's a big marketing mistake, because you don't waste
any on spoons, the working top, your left boot, etc. Expect a sharp drop
in sales. (;-)

OTOH, I do have pasta sauces in plastic jars. They would do.
--
Regards, John Woodgate, OOO - Own Opinions Only.
The good news is that nothing is compulsory.
The bad news is that everything is prohibited.
http://www.jmwa.demon.co.uk Also see http://www.isce.org.uk
 
Some people are allergic to nuts!.

-------------------------------------------------------------------
"Frank Bemelman" <f.bemelmanx@xs4all.invalid.nl> wrote in message
news:41606e41$0$34762$e4fe514c@news.xs4all.nl...
"John Woodgate" <jmw@jmwa.demon.contraspam.yuk> schreef in bericht
news:VHjgH3N5OGYBFwdi@jmwa.demon.co.uk...
I read in sci.electronics.design that Frank Bemelman <f.bemelmanx@xs4all
.invalid.nl> wrote (in <4160593d$0$43451$e4fe514c@news.xs4all.nl>) about
'Water resistant motor', on Sun, 3 Oct 2004:
"John Woodgate" <jmw@jmwa.demon.contraspam.yuk> schreef in bericht
news:nVEMzOLkSFYBFwrZ@jmwa.demon.co.uk...
I read in sci.electronics.design that AA Institute
abdul.ahad@ntlworld.com> wrote (in
adbf5bc1.0410031012.181b6b1b@postin
g.google.com>) about 'Water resistant motor', on Sun, 3 Oct 2004:

The motors of this type sold in Maplin (UK) are not water-proof, and
when the stirring platform takes a dive into the water during a rain
storm, the motor just ceases up and rusts. Budget... a couple of
pounds!

You can get a plastic box rated IP66 or better from Farnell for a
pound
or three. Put your motor in it and make your float such that the
motor
is 150 mm above the water. The motor spindle can be 150 mm long with
little problem, especially if you fit a simple guide, not a precision
bearing, at the watery end.

Or peanut butter jars. IP67 and cheaper ;)

The lids go rusty.

You should cover the lids with peanut butter. The AA institute has a
rather limited budget, so we need to be a bit creative.

--
Thanks, Frank.
(remove 'x' and 'invalid' when replying by email)
Click to expand...
 
On Monday 04 October 2004 01:45 am, John Woodgate did deign to grace us with
the following:

I read in sci.electronics.design that Don Kelly <dhky@peeshaw.ca> wrote
(in <Xm38d.584544$M95.404528@pd7tw1no>) about 'Water resistant motor',
on Mon, 4 Oct 2004:

You haven't bought peanut butter for a while- nowadays both jar and lid
are plastic.-at least the one marked "kraft" in my pantry is made this
way :)

I haven't seen any in UK yet, but I do have liquid honey in a plastic
squeezy bottle. It's a big marketing mistake, because you don't waste
any on spoons, the working top, your left boot, etc. Expect a sharp drop
in sales. (;-)

OTOH, I do have pasta sauces in plastic jars. They would do.
--
Click to expand...
Well, I don't know if I'm a representative or example or paragon
of anything other than applied whimsy/lunacy, but I am a single, white,
middle-working-class male guy, and I imagine that I'm not the only
customer who would pay a premium price for honey in a package
that doesn't spill all over your shoes and stuff. As with mustard.
And, for that matter, ketchup. Hey! I think I've serendipitized a new
axiom:

Guys like condiments that we can point.

Cheers!
Rich
 
On Mon, 4 Oct 2004 09:45:09 +0100, the renowned John Woodgate
<jmw@jmwa.demon.contraspam.yuk> wrote:

I read in sci.electronics.design that Don Kelly <dhky@peeshaw.ca> wrote
(in <Xm38d.584544$M95.404528@pd7tw1no>) about 'Water resistant motor',
on Mon, 4 Oct 2004:

You haven't bought peanut butter for a while- nowadays both jar and lid
are plastic.-at least the one marked "kraft" in my pantry is made this
way :)

I haven't seen any in UK yet, but I do have liquid honey in a plastic
squeezy bottle. It's a big marketing mistake, because you don't waste
any on spoons, the working top, your left boot, etc. Expect a sharp drop
in sales. (;-)
Click to expand...
Check out the price per unit in the squeeze bottle compared to the
older bottles, also there's a skill to designing containers that seem
to hold more product than they actually do- so maybe they're not just
punting.


Best regards,
Spehro Pefhany
--
"it's the network..." "The Journey is the reward"
speff@interlog.com Info for manufacturers: http://www.trexon.com
Embedded software/hardware/analog Info for designers: http://www.speff.com
 
Hi John,

You want the type of nylon bearing that some droid designed into
central-heating pumps in UK about 25 years ago. Over time they GREW, and
got tighter instead of looser, so that the pump seized up after about
three years.


Aha! Thanks for the hint. Come to think of it, what I found in there
Click to expand...
were nylon bearings :-(

Regards, Joerg

http://www.analogconsultants.com
 
In article <cjr4bi$m8t$1@newstree.wise.edt.ericsson.se>,
frithiof.jensen@die_spammer_die.ericsson.com says...
"AA Institute" <abdul.ahad@ntlworld.com> wrote in message
news:adbf5bc1.0410031012.181b6b1b@posting.google.com...

I just want it to keep the water surface stirring enough to stop the
pond from freezing over completely, and endangering the fish.

A small air pump - like used for aquaries??

The pump is left in a dry place and the hose can be as long as you like
because there will be little pressure drop with the miniscule flow.
Maybe a bubbler instead? Used in some place to keep dock pilings free of
Click to expand...
ice. Since it pumps air it doesn't need to be immersion proof.

Robert
 
On Mon, 4 Oct 2004 19:09:40 +0100, John Woodgate
<jmw@jmwa.demon.contraspam.yuk> wrote:

I read in sci.electronics.design that Joerg <notthisjoergsch@removethisp
acbell.net> wrote (in <yFf8d.6239$nj.4542@newssvr13.news.prodigy.com>)
about 'Water resistant motor', on Mon, 4 Oct 2004:
with often rather flimsy "bushings".
After a number of algae cleanings these bushings are what determines end
of life, usually.

You want the type of nylon bearing that some droid designed into
central-heating pumps in UK about 25 years ago. Over time they GREW, and
got tighter instead of looser, so that the pump seized up after about
three years.
They grew because nylon absorbs water. When used for bearings for prop
Click to expand...
shafts in boats it ir rough machined, soaked, and the finish machined.
Acetal plastics won't absorb water and make excellent bearings for low
force, water lubricated, rotating assemblies.
ERS
 
sPoNiX@yahoo.com (sPoNiX) wrote in message news:<4161250d.9832140@news.individual.net>...
On 3 Oct 2004 02:10:01 -0700, abdul.ahad@ntlworld.com (AA Institute)
wrote:

Hi,
Can someone please tell me if there's a small, *water proof* DC motor
available to buy which I can leave permanently outdoors? Even worse,
it will get splashed by the waters in my miniature "lake" projects as
depicted here:-

http://uk.geocities.com/aa_spaceagent/LakeEuropa.html#Hydrobot

(That's a large *pond* in an isolated location... hence I gave it a
pet name of "Lake Europa"!)

Buy a radio controlled boat!

Yes, that sounds like a great idea, since it must use some kind of a
Click to expand...
motor powering a rotating drive fan and the whole arrangement will be
water resistant... I'll investigate this one with interest!

I just wanted to say thanks to everyone for the overwhelming number of
possible ideas.

Abdul
 
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