Rapid Prototyping

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[edit] Introduction

There is a significant set of open source technologies that enables rapid prototyping to take place in local workshops. Combine 3D printing with low-cost metal casting, and follow with machining using a computer controlled Multimachine, and you have the capacity to make rapid prototypes and products from metal.

  • RepRap - open source 3D Printer - has just achieved self-replication

Reprap.jpg

  • Small-scale metal casting technology is readily available.

Furnace.jpg

  • In particular, a waste oil burner such as the Babington burner may be utilized as the heat source.

Babs.jpg(source)


  • Multimachine - an open source multipurpose machining tool is available.

Multimachine.jpg

The interesting part is that the budget is $500 for RepRap, $200 for the casting equipment, and $1500 for a Multimachine with CNC control added. Using available knowhow, this can be put together in a small workshop for a total of about $2200 - for full, computer controlled rapid fabrication. Designs may be downloaded from the internet, and local production can take place based on global design.

Such a project is interesting from the standpoint of localized production in the context of the global economy - for creating significant wealth in local economies.

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