Ram Pump 1.jpg
FA info icon.svgAngle down icon.svgDevice data
Manufacturing files https://www.youmagine.com/designs/777-osat-ram-pump
Hardware license CERN-OHL-S
Certifications Start OSHWA certification
FA info icon.svgAngle down icon.svgProject data
Authors Nick Buday
Location Michigan, USA
Status Prototyped
Completed 2019
Made Yes
Replicated No
Cost USD 13.8
Instance of Water pump
OKH Manifest Download

This OSAT project is the design and prototyping of a hydraulic ram pump. This pump features no motorized parts and can be left unattended for extended duration with minimal upkeep. This pump is designed to allow someone in an area with hills with a water source far away. The ram pump does have a lot of waste water compared to how much it pumps, so it is ideal to place the waste outlet into a natural occurring water source.

Ram Pump 1.jpg

Bill of Materials[edit | edit source]

  • Standard Pop Bottle (~$2 USD)
  • Super Glue (~$5 USD)
  • Knife or cutting edge to clean up print if need be
  • 3D Printed Parts

Tools needed[edit | edit source]

Skills and knowledge needed[edit | edit source]

Technical Specifications and Assembly Instructions[edit | edit source]

Ram Pump 2.JPG

Common Problems and Solutions[edit | edit source]

  • To avoid trouble with assembly, use the knife to smooth the parts till they fit "snug".
  • Highly recommended to print the adapters and restrictions at layer height of 0.3 mm
  • Highly recommended to print the pump bodies at layer height of 0.2 mm
  • Highly recommended to print the threads at layer height of 0.1 mm
  • When using super glue, be careful not to overdue it. Too much glue can clog areas of the pump. Just keep a towel or rag handy to wipe excess glue in some areas.
  • If the pump is struggling to pump water, make sure the source for the inlet is significantly higher than the pump (at least 1 meter)

Cost savings[edit | edit source]

  • Material Costs total ~~$13.8 USD
    • Printinf cost ~~$6.8 USD
    • Resources cost ~~$7 USD
  • Commercial 1" Ram Pump ~~$165 USD[1]
  • Savings
    • ~~$151.2 USD in savings
    • ~~ 91% in savings

Benefited Internet Communities[edit | edit source]

  • Engineers Without Borders[2]
  • The Water Project[3]
  • Water For People[4]
  • Solea Water[5]
  • WaterAid [6]

References[edit | edit source]

Wikipedia:Bernoulli's principle


FA info icon.svgAngle down icon.svgPage data
Part of MY4777
Keywords 3d printing, hydram, hydraulics, ram pump, water, osat, bottle, glue, plastic, water, pumps, technology
SDG SDG06 Clean water and sanitation, SDG08 Decent work and economic growth
Authors Nick Buday
License CC-BY-SA-3.0
Language English (en)
Translations French
Related 1 subpages, 3 pages link here
Aliases Ram Pump
Impact 878 page views
Created December 4, 2019 by Nick Buday
Modified January 3, 2024 by Emilio Velis
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