Manual water pump
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3D model description
Manual water pump created by the Togolese association 3B brick, wood, organic.
This association is part of sustainable development. It develops alternative fuel, recycles wood waste, preserves forest environments and promotes the employment of women and young people.
If you wish to contact us and/or help us :
Manual water pump, created by the Togolese organization 3B (for "brick, wood, organic" in English, i.e. "brick, wood, organic").
This non-profit organization is involved in sustainable development. 3B develops an alternative fuel, recovers wood waste, participates in forest preservation and promotes employment for women and youth. 3B was created by volunteers. The different parts are first produced in France and then assembled in Togo.
If you wish to contact us and/or to help us:
This pump is self-priming, the PVC tube used can vary in diameter and thickness.
In Europe PVC pipes have an external diameter of 63 mm and a wall thickness of 3 mm, but it is possible to find pipes with a smaller wall thickness, especially in Togo.
In the case of thinner tubes, the clearance must be compensated for by the diameter of the washer that guides the PTFE.
To facilitate priming, a little water should be poured into the pump through the outlet hole.
It is possible to replace the 2 PLA printed washers with washers cut from food-grade plastic cutting boards.
For assembly, glue the PVC tube to the base with epoxy glue, the cap must be removable for easy maintenance.
Use silicone sealant to seal the water outlet, intake pipe and cap.
The handle can be covered with a 32 mm diameter PVC tube.
The bottom flap, inner tube or pool cover is cut out using the template.
The valve closes due to the weight of the washers and the screw.
Printing tests of the "filaflex" membrane were conclusive.
However, we do not have any experience with the longevity of printed parts.
The high cost of the filament and the too long manufacturing time lead us to the inner tube or pool cover solution.
See PDF file for hardware.
3D printer file information
3D design format: PDF and STL Folder details Close
- Publication date: 2020/02/18 at 11:44
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