Hi
Has anybody made an M200 based pump? Ideally want to pump about 7-15,000 liters per hour. It doesn’t need to lift the water up any height. If anybody has any ideas of knowledge about making one, I would be interested to hear.
thanks
John
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Hi @johng -
The M200 would make a great drive for a pump - no shaft seal necessary! You’d want to make sure the water you’re pumping won’t have suspended particles, especially magnetic ones, as this can abrade the coatings on the motor’s rotor.
I’ve made an impeller that fit around the motor’s rotor in the past, and a housing that directed water to create a crude centrifugal pump before.
I found this CAD picture, which shows the motor being used to create a venturi pump. This is less efficient, but can avoid particles passing through the pump itself, as the high velocity water stream is what then causes water to move along the main channel on the right.
As for the volume you can expect to move, I would expect 300-400 watts of power to move a significant amount of water - however over 600 gallons per minute would be quite a powerful pump (150,000 liters per hour!) Even if you meant 15k liters per hour, 60+ gpm is still a lot of water flow- but potentially achievable! Something like this may be a good starting point!
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Hi Tony
Thanks for the response and info. I meant 15,000 liters per hour so I have edited that. It is indeed for a Venturi pump to get around the particle damage. I really like the one in the images and would love to find a CAD file of the impeller at the least. That seems to be the most difficult part of getting this to function correctly.
cheers
John
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Hi @johng -
Those impellers were just a random size, based on what was easy to 3D print! I believe they were ~2mm in thickness, and an arbitrary paddle-wheel geometry. Certainly - experimenting with different numbers of paddles, and their shape / tight clearance with the housing will definitely drive the resulting performance of the pump.
Moving 60GPM via venturi may be beyond what the M200 can manage… 6GPM seems a more realistic target for this, at best, based on my recollection of how the testing went (not very well for the pictured design - maybe 1-2 gpm? but M100 was not drawing its full potential power, and you have more available with the M200.)
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I am also considering modifying a T500 into an M500 and trying it if the T200 isn’t up to it. Obviously going to take a bit of trial and error.
That is a really interesting venturi design - heres a link to 3D files for an impellor design that could be useful to incorporate in this.
Hey Bill
Much appreciated. Got the 3d printer working on one right now. cheers