Vacuum CastingCasting SystemSystem - MIT OpenCourseWare · 2020-01-03 · R Roough ugh TTimeline/...
Transcript of Vacuum CastingCasting SystemSystem - MIT OpenCourseWare · 2020-01-03 · R Roough ugh TTimeline/...
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Vacuum CastingVacuum Casting SystemSystem
Marc Louis Matthe F ell D id Sengeh Leslie Mey Marc Louis, Matthew Farrell, David Sengeh, Leslie Meyer March 30, 2009
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Original IdeasOriginal Ideas
6 Fablab Casting Method used for production of cost effective sockets p
6 Developing an Improved Pyramid for a Socketa Socket
6 Vacuum Cast Sockets for Cost Effective Socket ProductEffective Socket Product
6 Force simulation of a socket
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g yVacuum Casting System Overview
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e urWhere W C rentl Stand Where We Currently Stand
6 Integrated bag and Nozzle
6 Replacement of beads with local materials
6 Pump for vacuum creation 6 Bike pumps
6 Other sources of human power
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g gIntegrated Ba and Nozzle System
6 Cheaper 6 (no need to buy/keep replenishing plastic bags)( y p p g p g )
6 - Greener 6 (reusability)(reusability)
6 - Self contained 6 (easier to use) 6 (easier to use)
6 - More efficient M b ff ti t d b f l i l6 May be a more effective vacuum created because of less air loss (experimentation and examination needed)
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Diagram of Integrated Nozzle g gand Bag System
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Parts of the System
1. Outer Non-Pourous Bag3
. Oute No ou ous ag
2.Inner Pourous Bag
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3. Air Pump
4. Screw Top
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2Easy Fastening
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eMaterial R quirementsMaterial Requirements
6 FlexibleFlexible 6 (variable stumps)
N6 No memory 6 (can go back to default after air is added in)
6 Not porous
6 Preferably cheap and easily accessibley p y
6 Durability and Longevity
6 No side effects 6 (irritation, toxins etc) 7
Possible MaterialsPossible Materials
Material used in Airline pillows
A porous material and soak into some kind of resin
Balloon material
Vacuum Storage Bag Vacuum Storage Bag
Various plastic bags( hi k i i )(thickness, exact composition, etc)
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oR ugh Timeline/ indicatorsRough Timeline/ indicators
Identify material-Identify material - Attaching Nozzle - Testingg -- Product Modification (Prototyping) -- Testing
d-- Product
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a eQuestions nd Sugg stionsQuestions and Suggestions
F l f t k ti Feel free to ask any questions or give any suggestionsor give any suggestions
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EC.722 Special Topics at Edgerton Center:Developing World Prosthetics Spring 2010
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