3D-printed double helical gear pump/water pump/hydraulic pump *watertight*

Recently saw a video of Boston Dynamics it's Atlas robot doing all kind of awesome stuff and learned that the robots were fully hydraulic. I was wondering if it would be possible to build a fully 3D-printable hydraulic system that's watertight and can be used for robotics. This double helical gear pump is the first component of the fully 3D-printable hydraulic system.

Note: The pump is watertight when using the 3D-printed lid with seal and seal tensioner. at some point in the video you can see me using a laser cut plexi lid, this one is only used for demo reasons, doesn't have a seal and so obviously leaks.

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Timestamps:
00:00 Intro
00:08 Mechanical design
00:25 Manufacturing
00:57 Assembly
03:21 Initial testing
04:13 Revision
04:36 Plexiglass lid
05:32 Outro

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STL and Fusion 360 source files can be found here: https://bbprojects.technology/collections/stl-fusion-360-source-files/products/3d-printable-double-helical-gear-pump-water-pump-hydraulic-pump

More info, schematics, parts list, etc... can be found here: https://bbprojects.technology/blogs/projects/3d-printable-double-helical-gear-pump-watertight

My PayPal: https://paypal.me/BrockenBrian

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Tools used:
PLA filament: https://www.banggood.com/Creality-3D-White-or-Black-or-Yellow-or-Blue-or-Red-1KG-1_75mm-PLA-Filament-For-3D-Printer-p-1290153.html?p=E01411629100201406T1&custlinkid=926158

FLsun Super Racer: https://www.banggood.com/custlink/GGKYBGkYhZ

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Music credit:
Outro song: Sustainable Dignity by Catalyst Belgium
Link to the video: https://www.youtube.com/watch?v=nMMAsQ1kyBQ
Link to their channel: https://www.youtube.com/channel/UC2x8566EI-h7XoaJSrf43Vg Their website: https://catalystbelgium.com/
For use and licensing of this song, please contact Catalyst Belgium.

Song: Joakim Karud - Classic (Vlog No Copyright Music)
Music provided by Vlog No Copyright Music.
Video Link: https://youtu.be/COWVJbyEaW4

Longing by Joakim Karud https://soundcloud.com/joakimkarud
Music promoted by Audio Library https://youtu.be/wSL0sGLTgLQ

Видео 3D-printed double helical gear pump/water pump/hydraulic pump *watertight* канала Brian Brocken