Model Boat Mayhem

Technical, Techniques, Hints, and Tips => 3D CAD Design & Printing => Topic started by: grendel on April 08, 2017, 03:07:20 pm

Title: bilge pump
Post by: grendel 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

Title: Re: bilge pump
Post by: bfgstew on April 08, 2017, 06:32:59 pm
Nice bit of kit Grendel, ideal for those bow ploughing moments....... ok2
Title: Re: bilge pump
Post by: Martin (Admin) on April 08, 2017, 09:30:58 pm
 
That's not a bilge pump, more of a fire hydrant!      :-))
Title: Re: bilge pump
Post by: oldflyer2 on April 09, 2017, 11:08:17 am
That looks quite powerful ... would it work as a small bow thruster?
Title: Re: bilge pump
Post by: grendel 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
Title: Re: bilge pump
Post by: Chris57 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
Title: Re: bilge pump
Post by: oldflyer2 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
Title: Re: bilge pump
Post by: grendel 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