Water Pump DIY or Buy
video description
3D printing is typically used as a method of prototyping parts that will eventually be injection molded, cast, or machined. Rapid prototyping. If a part can be made using those methods as well as 3d printing, then 3d printing will always be inferior besides time and in low quantities, cost.
3D printing can, however, create parts which the other methods can not. Complex geometry etc.
The part you printed could not only be made easily with other methods, but it was designed for it. Any print that requires that much support is either purely aesthetic or a poor design. That shaft was designed perpendicular to the grain or layers of the printer: the weakest orientation, and also the weakest size/part of the whole thing.
All of that aside, the impeller could be more efficient with a completely different shape. I'm not great with impeller designs but centrifugal pumps typically have a shape so complex it cant be made with casting or injection molding, and have to be made with a 5 axis mill and hours of time. 3D printing excels at stuff like that.
Also those tubes were way too large. Water is a non compressible fluid and is very difficult to move when the device allows air through easily. The impeller was just circulating air and not picking up the water. Smaller tubes=less volume and the pump would have an easier time once it was primed.
I'm nothing more than a keyboard engineer but I think a 3D printed part could be much better if designed properly.
EDIT: Designed properly and utilized the 3D printer's abilities which other machines can't compete with in a home setting.
Date: 2020-09-05
Related videos
Comments and reviews: 9
Casper
Intellij IDEA is better for Java than Eclipse tbh
EDIT: you can fix the shaft problem by using a hex bolt instead of a 3D printed shaft, or if you don't have one the right size you can use a threaded rod with two locked nuts, then make sure your impeller has a hex countersink to firmly hold the bolt or nut in place and apply superglue if necessary.
As for ease of maintenance you can put silicone kit on the edges, applying soapy water to the other half and then screwing them together but not completely (5mm apart or something like that) then let the silicone dry, this will create a watertight seal that doesn't keep the two parts stuck together
reply
Intellij IDEA is better for Java than Eclipse tbh
EDIT: you can fix the shaft problem by using a hex bolt instead of a 3D printed shaft, or if you don't have one the right size you can use a threaded rod with two locked nuts, then make sure your impeller has a hex countersink to firmly hold the bolt or nut in place and apply superglue if necessary.
As for ease of maintenance you can put silicone kit on the edges, applying soapy water to the other half and then screwing them together but not completely (5mm apart or something like that) then let the silicone dry, this will create a watertight seal that doesn't keep the two parts stuck together
reply
Butters
I own an irrigation business and dang 2gpm is terrible for that amazon pump unless youre doing drip/micro irrigation. I assume youre using recycled water rain water or something and thats why youre using a pump? Irrigation booster pumps are a bit bigger but will definitely push more water at a higher psi.
If youre not using recycled water from a basin or barrel and youre just using water from the town, you could just use a solenoid valve and hook that up to your microcontroller and sensors. Love to see an update to this
reply
I own an irrigation business and dang 2gpm is terrible for that amazon pump unless youre doing drip/micro irrigation. I assume youre using recycled water rain water or something and thats why youre using a pump? Irrigation booster pumps are a bit bigger but will definitely push more water at a higher psi.
If youre not using recycled water from a basin or barrel and youre just using water from the town, you could just use a solenoid valve and hook that up to your microcontroller and sensors. Love to see an update to this
reply
mystic22222
It isn't just about make-or-buy economics; it's really about being able to make things when you can't buy things, aka SHTF, plandemics, global economic collapse, etc.
You're time and efforts have not been wasted, as all these commenters are saying how easy it is to finish your development.
I would also finish your product by adding a priming port. Instead of trying to pump water in, I would use the port to suck air out.
reply
It isn't just about make-or-buy economics; it's really about being able to make things when you can't buy things, aka SHTF, plandemics, global economic collapse, etc.
You're time and efforts have not been wasted, as all these commenters are saying how easy it is to finish your development.
I would also finish your product by adding a priming port. Instead of trying to pump water in, I would use the port to suck air out.
reply
Xrw
The all rotating parts must be metal. Otherwise water will always break the turbine or shaft. Water is not low density material. It shouldnt be underestimated. All diy project with 3d printer will crush at the end of the day(except short diameter pomps. I think you made all good. But your material choice was bad. If you make all rotating parts alluminium or steel it will work properly.
reply
The all rotating parts must be metal. Otherwise water will always break the turbine or shaft. Water is not low density material. It shouldnt be underestimated. All diy project with 3d printer will crush at the end of the day(except short diameter pomps. I think you made all good. But your material choice was bad. If you make all rotating parts alluminium or steel it will work properly.
reply
jmaguilarr
this kind of pump spin at high speeds, if is no well aligned, a high vibration can destroy the shaft, not the force of the motor itself, you may try use a shorter shaft, align better or a combination of both. aother tigh, in the video seems that the shaff has a diameter more little that the ball bearing, so, the bearing wasnt doing its job
reply
this kind of pump spin at high speeds, if is no well aligned, a high vibration can destroy the shaft, not the force of the motor itself, you may try use a shorter shaft, align better or a combination of both. aother tigh, in the video seems that the shaff has a diameter more little that the ball bearing, so, the bearing wasnt doing its job
reply
Robert
Your input shaft on your diy water pump didn't fit the bearing it was seated with and you probably should have made a recess and a shift off the front of the veins to strengthen the pump all in all i dont think you tried as hard as you normally do but cool video I guess
reply
Your input shaft on your diy water pump didn't fit the bearing it was seated with and you probably should have made a recess and a shift off the front of the veins to strengthen the pump all in all i dont think you tried as hard as you normally do but cool video I guess
reply
Tentando
First you need to put water into the pump to the pump take the water to the other side, in real pumps we do this, If you do not put water into the pump making it get full of water, the pump will not be able to do the work.
reply
First you need to put water into the pump to the pump take the water to the other side, in real pumps we do this, If you do not put water into the pump making it get full of water, the pump will not be able to do the work.
reply
JBTech
You just over complicated this project. Why do you even care to opt for 3d printed parts. You could have just made it using PVC. It's a DIY project right so why waste time and money unnecessarily
reply
You just over complicated this project. Why do you even care to opt for 3d printed parts. You could have just made it using PVC. It's a DIY project right so why waste time and money unnecessarily
reply
Yousif
Whenever you have a mechanical project?
You would rather just buy.
Not DIY.
Consider parting up with a mechanical or ehem. a mechatronics engineering YouTuber.
Just a thought.
reply
Whenever you have a mechanical project?
You would rather just buy.
Not DIY.
Consider parting up with a mechanical or ehem. a mechatronics engineering YouTuber.
Just a thought.
reply
Add a review, comment
Other channel videos
