BTJ cap bottle.jpg
Project data
Authors Btjoseph
Made? Yes
Replicated? No
Export to Open Know How Manifest
Page data
Type Project
Keywords 3D printing, water filter, clean water
SDGs Sustainable Development Goals SDG03 Good health and well-being
SDG06 Clean water and sanitation
SDG12 Responsible consumption and production
Published by Btjoseph
Kathy Nativi
Published 2018
License CC BY-SA 3.0
Affiliations Michigan_Tech's_Open_Sustainability_Technology_Lab
Language English (en)
Page views 433

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: