BTJ cap bottle.jpg
Project data
Authors Btjoseph
Made? Yes
Replicated? No
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Title of the device or system[edit | edit source]

Water bottle filter overview Project developed by Benjamin Joseph Btjoseph (talk) 16:57, 5 December 2018 (PST)

Abstract[edit | edit source]

Many developing third-world countries have a steady or increasing need for clean drinking water. Many solutions for achieving clean drinking water already exist, but require expensive manufacturing equipment outside the area where there is a need, and then incur shipping charges to ship them to the target location. 3D printing technologies allow rapid manufacture of humanitarian-aid devices such as water purification tools. This printable design requires some filament (preferable ABS), a tea bag, and activated carbon to create. This allows the user to drink filtered water on-demand from and standard plastic water or pop bottle.

BTJ filter assembled.jpg

Bill of Materials[edit | edit source]

  1. One bag holder: [STL] [OpenSCAD]
  2. One bottle cap: [STL] [OpenSCAD] Bottle cap also required thread component:
  3. One tea bag
  4. activated carbon ( about a teaspoon)

Costs[edit | edit source]

  1. The activated carbon was obtained by cutting open a $6 Breta water filter (if bought in a six pack for $24) from Walmart. the carbon from one filter was able to fill 12 tea bags, making the carbon cost per bag $0.50. Activated carbon may likely be found cheaper than by using this method.
  2. Tea bags are available from Walmart in 100-count boxes for $3.50, yielding a unit price of $0.04 if rounded up.
  3. Cura estimates both parts will cost $0.51 to print.

Total cost: $0.50 + $0.04 + $0.51 = $1.05

The cheapest equivalent water bottle with an internal filter costs $10. This is a cost savings of just under 90%.

Tools needed[edit | edit source]

  1. MOST Delta RepRap or similar RepRap 3-D printer
  2. No other tools!

Technical Specifications and Assembly Instructions[edit | edit source]

Benefited Internet Communities[edit | edit source]

References[edit | edit source]

<ref> web page: *Primal Available:

Page data
Type Project
Keywords 3d printing, water filter, clean water
SDG Sustainable Development Goals SDG03 Good health and well-being, SDG06 Clean water and sanitation, SDG12 Responsible consumption and production
Authors Btjoseph, Kathy Nativi
Published 2018
License CC-BY-SA-3.0
Affiliations Michigan_Tech's_Open_Sustainability_Technology_Lab
Language English (en)
Impact Number of views to this page and its redirects. Updated once a month. Views by admins and bots are not counted. Multiple views during the same session are counted as one. 175
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