External GEAR PUMP - 3D Printed

PCBWay Your 3D & CNC One-Stop Solution: www.pcbway.com/
In this video, I build an external gear pump and it works pretty well. I have built in this channel a lot of water pumps but this is a bit different from all of them. If u are interested to build this gear pump on your own, all that u need u find on these links:
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FREE 3D PRINTING FILES: thangs.com/Lets-Print/Body1-2...
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775 DC motor: s.click.aliexpress.com/e/_DDx...
Brass hose nozzles: s.click.aliexpress.com/e/_DBC...
O rings: s.click.aliexpress.com/e/_DFv...
Bearings: s.click.aliexpress.com/e/_DB3...
Tube: s.click.aliexpress.com/e/_DFJ...
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MY PATREON PAGE: / letsprintyt
Facebook: www. letsprintyoutube
Instagram: / letsprintyoutube
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[@martylawson1638]

Water is a perfectly good hydraulic fluid. The only reason not to use water are if it will corrode steel components, freeze, or provide insufficient lubrication.

[@andras204]

Try reducing the number of teeth on the gears. High performance oil pumps tend to have straight cut gears with only 3 lobes/teeth. This way you could move more volume of liquid at lower rpm which would lead to less bubbles

[@ZoltanG]

If you want a "cheaper" hydraulic fluid, you can use any cheap Automatic Transmission Fluid, thinner than motor oil but thicker than brake fluid.

[@Guffy1990]

I'd really like to see how it does if the pump is primed! I think it'd do fairly well. There aren't many self starting pumps out there, and most pumps can't be run dry as they use the fluid to cool them. Air in a pump dramatically reduces its power, at least the water was able to push the air through, but if it were in a closed loop, it may come into some issues because loads of microbubbles would form like in the oil.

[@Roy-K]

For any hydraulic system, it’s really important to bleed any air out of the lines and cylinders so that those bubbles don’t degrade the performance of the pump; it also reduces backlash and springiness in the system

[@lkahfi]

Hi, you can add check valve in inlet to prevent water moving back to bucket so you don't need to prime it everytime. The downside is you can't moving water in reverse

[@Eden_M]

I'm going to print one for sure, thanks for sharing your files! I must mention that plastic gear pumps usually are not self-priming, (and should not be run dry) while diaphragm pumps are self-priming, meaning they can get rid of the air in the system and then transfer whatever liquid through the piping, designing a diaphragm pump for 3D printing is a challenging task.

[@austinspor2558]

An O ring around the edge of the plexy glass and the printed part will also help with leaks as well. Great video 📹.

[@andreforcier97]

Your getting much better with presentation! Also you are getting pretty good with adding a bit of humour too! 👍✌️

[@RandyRandersonthefamous]

Amazing! You just made every 3d printer owner around the globe a pump factory!

[@JB-yu1vv]

Really like these videos about pumps, hoping there will be a part 2 of the multi stage waterpump

[@FullPowerPillock]

That’s a seriously interesting build that certainly got my attention

[@mikebradlee3504]

Excellent. Thanks for all of your hard work!

[@nobodynoone2500]

Those aren't self-priming pumps. Most systems require bleeding air out first for full performance, much like a car.

[@ale6242]

This thing is awesome! great work!

[@a_student0]

Nice project! :)

[@grillpig3860]

I normally use a screw tap to thread the holes for the inserts beforehand. Works pretty well for me.

[@hithere2561]

Leaking pumps are like trademark for this channel :D

[@rudolfsmagone3548]

Awesome idea. I get inspiration from your projects to work on my own ideas :).

[@first-thoughtgiver-of-will2456]

this is awesome! consider researching self priming pumps and how to make a hydrofoil also an aerofoil.