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Author Topic: bilge pump  (Read 2604 times)

grendel

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bilge pump
« on: April 08, 2017, 03:07:20 pm »

While making my model I was asked if it would have a bilge pump in case of accidents. I thought this would be a great idea, so off I went hunting for a stl file on the internet - I found this one http://www.thingiverse.com/thing:4839
after printing this using thick walls I found the impellor too big, no problem, another printed slightly smaller.
this was then assembled using a tiny drone motor. upon testing it proved to work well, and when approximately measured produced a flow rate of about 1.5 litres a minute.
https://www.youtube.com/watch?v=ridp-uIhnIA&feature=youtu.be

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bfgstew

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Re: bilge pump
« Reply #1 on: April 08, 2017, 06:32:59 pm »

Nice bit of kit Grendel, ideal for those bow ploughing moments....... ok2
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Martin [Admin]

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Re: bilge pump
« Reply #2 on: April 08, 2017, 09:30:58 pm »


That's not a bilge pump, more of a fire hydrant!
     :-))
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oldflyer2

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Re: bilge pump
« Reply #3 on: April 09, 2017, 11:08:17 am »

That looks quite powerful ... would it work as a small bow thruster?
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grendel

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Re: bilge pump
« Reply #4 on: April 09, 2017, 11:44:01 am »

I guess it would, but its not really designed with that in mind, it doesnt perform well in reverse
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Chris57

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Re: bilge pump
« Reply #5 on: April 09, 2017, 12:00:05 pm »

t doesnt perform well in reverse
[/size]Surely,that is a good thing in a bilge pump. O0
Chris
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oldflyer2

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Re: bilge pump
« Reply #6 on: April 09, 2017, 12:27:15 pm »

They are small enough that you could do two. one for each side maybe.

I am going to try and print a couple and experiment a bit.

Tom
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grendel

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Re: bilge pump
« Reply #7 on: April 09, 2017, 02:34:37 pm »

just remember you may have to reprint the impellers a fraction smaller, on mine they were about 1mm too big, but then I thickened the walls.
I am currently designing a working anchor winch using a set of gear components I bought several years back, and a cd drawer operating motor, from an old pc CD drive
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