▼This page was part of an MTU course MSE4777 OA and MSE4777 OB/MSE5777/EE4777/EE5777: Open-source 3-D printing
Please leave comments using the talk page. The course runs in the Fall semester. It is not open edit.
Project data
Authors Trevor Marvin
Years 2018
Made Yes
Replicated No
Cost USD 5.25
OKH Manifest Download

Hand washing is an essential part to maintain proper hygiene and to prevent the spread of sickness. In places that do not have access to running water do not have the ability to frequently wash their hands and increase the chance of sickness to spread. With a portable easy to use unit that uses a limited amount of water to be able to have in a village or house in a place with out access to running water could help prevent spread of sicknesses. Current solution is to use a larger jug hanging from a tree for a small town or village to share.

Bill of Materials

  1. PLA Plastic Filament - Approx: 200g Cost: ~$4
  2. Rubber O-Rings - 2: 3/4" ID x 15/161" OD Cost: $1
  3. Electrical Tap - 4" Cost:$0.25
  4. Common Used Bottle 12oz to 2L - Garbage Cost: Free

Total Cost: $5.25

Tools needed

  1. MOST Delta RepRap or similar RepRap 3-D printer

Technical Specifications and Assembly Instructions

Used 2 Liter Bottle Holder by (c) 2013 Laird Popkin, based on http://www.threadspecs.com/assets/Threadspecs/ISBT-PCO-1881-Finish-3784253-18.pdf. Credit to eagleapex for creating and then deleting http://web.archive.org/web/20170716152322/https://www.thingiverse.com/thing:10489

OpenSCAD Files

Files available at

Printable Stl files

For all printed components

Material: PLA

Layer Height: 0.15mm

Shell Thickness: 4mm

Fill Density: 10%

Print Speed: 110 mm/s

Printing Temperature: 205 C

Supports are Necessary

Total Printing Time: 10 hours

Assembly time: <5min

Assembly Instructions

  1. Materials: 2 Printed Pieces, Electrical Tape, 2 O-Rings, Bottle.
  2. The assembly is very straight forward from looking at the pictures.

Once the Printing is done take 1 of the two o-rings and put it around the end of the bottle so if the cap was screwed back on there is a good seal. Take the other o-ring and put it around the insert where the groove is. Roll the o-ring into place using a table or flat surface. Apply the electrical tape around the o-ring to create a tighter seal and hold the o-ring into place.

Common Problems and Solutions

Cost savings

  1. Total Cost of Print: $5.25
  2. The closest online equivalent is at least $225
  3. Savings: $219.75
  4. Precent Reduction: 97.6%

Benefited Internet Communities

  1. Blue Planet Network http://web.archive.org/web/20190831010829/http://blueplanetnetwork.org:80/
  2. ACTS http://web.archive.org/web/20210126000618/https://acts.ca/
  3. Bloodwater https://www.bloodwater.org/
  4. Care https://www.care.org/
  5. Charity:Water https://www.charitywater.org/ .

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Page data
Keywords 3D printing, hand washing station, health, osat, sanitation, water, plastic
SDG SDG06 Clean water and sanitation, SDG10 Reduced inequalities, SDG11 Sustainable cities and communities, SDG12 Responsible consumption and production
License CC-BY-SA-3.0
Organizations MTU, Michigan_Tech's_Open_Sustainability_Technology_Lab, MY4777
Language English (en)
Related 0 subpages, 2 pages link here
Views 168 page views (analytics)
Created December 6, 2018 by Trevor Marvin
Last edit June 18, 2024 by Felipe Schenone
Cite as Tjmarvin (2018–2024). "Hand Washing Station". Appropedia. Retrieved September 30, 2026.
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