User:Lex Berezhny/Microfactory

Basics

The microfactory is a set of tools and machines that can be reasonably acquired or built from abundant materials with the goal of enabling humanity to transcend scarcity and poverty.

A factory has inputs and outputs. The decision of which tools and machines comprise the microfactory is a function of the available inputs and the expected outputs, including the requirement of self-replication.

Inputs

Criteria for selecting inputs for the microfactory:

• abundant: it should be easy to acquire useful amounts of the material for free or at insignificant cost
• safe: acquiring, handling and processing the material should not be inherently dangerous; common mistakes should be reasonably forgiving
• appropriate: see https://en.wikipedia.org/wiki/Appropriate_technology

The following materials have been selected as inputs for the stated criteria:

• wood
  • renewable material that is abundant and free if harvested from your own property
  • wood has been used by humans for thousands of years and can be safely worked with primitive tools
  • many existing methods, tools and knowledge on working this material

• PET, HDPE, other plastics
  • soda bottles and milk jugs are everywhere
  • used for storing food, is expected to be safe
  • it's only in the last decade that this material has become appropriate for a home based microfactory. methods, tools and knowledge is still at early stages
    • https://preciousplastic.com/

• aluminum
  • soda cans are everywhere, aluminum scraps are also abundant
  • much lower melting temperature than steel, home made foundries for aluminum are popular

Aluminum forge to melt aluminum cans and other scrap

Basic Gas Burner Furnace

• The King of Random's "Mini Metal Foundry" Advice to Read Before Making This Design

• The King of Random's "Mini Metal Foundry" Build Guide

• The King of Random's "Mini Metal Foundry" Overview + Demo

=Large Gas Burner Furnace

• The King of Random's Smaller Version of the "Trash Can Foundry" Build Guide
• The King of Random's Larger Version of the "Trash Can Foundry" Build Guide
• The King of Random's "Trash Can Foundry" Overview + Demo

Small Electric Arc Furnace

• The King of Random's "Mini Arc Furnace" Build Guide
• The King of Random's "Mini Arc Furnace" Overview + Demo

Make wire out of ingots

• https://www.youtube.com/watch?v=owcnaC2ldsg

Circuit "printer"

• 3d print board with groves for wire and components
• place aluminum wire into grooves: http://reprap.org/wiki/SpoolHead
• apply solder paste
• pick'n'place components
• melt solder in oven

Aluminum extruder

• heat billets to 900F
• push through die
• cool consistently
• https://www.youtube.com/watch?v=Y75IQksBb0M
• https://www.youtube.com/watch?v=P8BWQBP4Vhk
• https://www.youtube.com/watch?v=ch1zEPDcg7E
• https://www.youtube.com/watch?v=MG3Ls7jrr2o&t=5m53s

See Also

• Open Source Digital Fabrication Construction Set

Useful Links

• http://www.metalbot.org/
• http://www.appropedia.org/Open-source_metal_3-D_printer