This Is a Fully 3D Printed Hydraulic Gear Pump
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Materials:
1 - 20mm x 3mm O-Ring
1 - 775 DC Motor (Or Something Similar)
2 - 605zz Bearings
2 - ¼ BSP Fittings
1 - M5x40 Bolt
1 - M5 Nut
16 - M4x7 Bolts
2 - M3x5 Bolts (To Mount The 775 DC Motor)
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This Type Of Pump has the Advantage Over Others, of Priming Itself
I Printed This One On My Prusa Mk2 Handmade Clone with 100% Infill (5 Perimeters in Almost Every Part) With PET-G Filament (RIP Bed Mirror)
I Also Used FLEX For The Gasket
I Greased Everything Up, Assembled It And It Works! Quite Well Actually
I Designed The Model Myself In Blender, It Took me 2 Days (4 Hours of Actually)
The Working Principle Of This Pump Is Quite Interesting, It Makes Use of The Gear Mesh Profile To Displace Volume
Working Principle: https://en.wikipedia.org/wiki/Gear_pump
The author hasn't provided the model origin yet.