3D Printed Shoes

Project developed by User:Sjhelmin

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Abstract

"A lack of adequate footwear is more than a simple inconvenience or lack of comfort. Millions are infected or dying each year due to the spread of diseases contracted through unprotected feet. It is estimated that two billion people worldwide are currently plagued with parasitic diseases that could be prevented by wearing proper footwear." [1] Walking barefoot hardens the skin on the bottom of your feet and cracks may form. These cracks allow parasitic infections such as hookworm and threadworm to penetrate the skin. [2] In addition to shoes protecting against harmful parasites, shoes also protect against burns, cuts and punctures. If untreated, these injuries may lead to serious infections. Many organizations exsist that donate shoes to people in need such as Toms [3], Soles4Souls [4], Samaritan's Feet [5] and many more.

Completed shoe.jpeg

Bill of Materials

  1. 1.7mm dia. PLA plastic or similar ($22.50 for 1 kg) [6]
  2. A shoe lace like material - I used 4mm dia. bungee cord ($5.73 for 75 feet) [7]

Source Files

  1. File:Shoe ver 2.stl
  2. File:Shoe ver 2.scad

Tools needed for fabrication of the OSAT

  1. MOST Delta RepRap or similar RepRap 3-D printer
  2. Filament - I used PLA
  3. Drill

Skills and Knowledge Necessary to Make the OSAT

Technical Specifications and Assembly Instructions

  1. Place your bare foot on a piece of paper. Trace the outline of your foot on the paper.
  2. Take the trace of your foot and measure:
    Trace foot.jpeg
    1. The length of your foot
    2. The cross-section of your heel and the distance from the back of your heal to the where you measured the cross-section of the heel
      Measure trace.jpeg
    3. The cross-section of your arch and the distance from the the heel cross-section and arch cross-section
    4. The cross-section as your foot begins to widen and the distance from the arch cross-section to this new cross-section
    5. The cross-section of the balls of your foot (this should be the widest section of your foot, close to your toes) and the distance between the last cross-section and the cross-section of the balls of your feet.
      Trace foot measure balls.jpeg



  1. Include print time estimate
  2. Include assembly time estimate
  3. Including drawings or pictures of the device at stage of assembly at minimum. (http://www.appropedia.org/Special:Upload)


Common Problems and Solutions

  • Include common mistakes/problems to avoid in building your OSAT and how to overcome them

Cost savings

  • If your solution is not a low cost one then it is not really appropriate.
  1. Estimate your costs
  2. Find a commercial equivalent
  3. Calculate $ savings and % savings

References

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