OSHW Powder-Based Rapid Prototyper

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By John Baichtal
Posted 2012/08/03 @ 11:00 am
Category 3D Printing, Workshop

Pwdr is an open source powder-based rapid prototyping machine. Its goal is to promote experiments and innovations in powder-based rapid-prototyping. The machine is ready to use both the 3DP as the SLS process with minimal adaption, although the printer is currently prepped for 3DP.

A whole new range of materials become available for experimenting with open-source rapid-prototyping; for example, when using the 3DP process: gypsum, ceramics, concrete, sugar, etc. And when the SLS process is fully supported, plastic materials like ABS, PP, Nylon and metals become available as building material.A Hewlett Packard inkjet cartridge is used for the deposition of binder. The cartridge can be refilled with custom binders using a syringe. A custom binder of 20% alcohol and 80% water has been proven to work.

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9 Responses to OSHW Powder-Based Rapid Prototyper

Brent Hannah on August 3rd, 2012 at 11:51 am said:

So …. What does it do .. exactly?

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- Marshall Hansen on August 3rd, 2012 at 6:26 pm said:
  
  Simply uses liquid binder from the print head to create a solid by spraying on the powder – different binders for different powders (materials). The solid form is built with each pass of the printer head.
  
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  protoneer on August 4th, 2012 at 12:06 pm said:
  
  How strong would an item be that is made this way? Especially a metal printed item.. Would love to print items that I can fit to my projects directly.
  
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  Marshall Hansen on August 4th, 2012 at 12:36 pm said:
  
  Lots of info on Google. “powder printer prorotyper”, etc. M
  
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  Marshall Hansen on August 4th, 2012 at 12:55 pm said:
  
  *prototyper
  
  Protoneer on August 4th, 2012 at 12:55 pm said:
  
  Thanks Marshall… So many links, so little time.. Found a nice you-tube video on the metal printing process http://youtu.be/20R9nItDmPY
  
  Marshall Hansen on August 4th, 2012 at 1:36 pm said:
  
  nice video – there are so many specs and materials so one has to know limits of intended use/application/forces/size etc. Not enough room in comments Good luck – M
Joel Finkle on August 3rd, 2012 at 12:20 pm said:

What’s the patent situation on 3DP and SLS?

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Hank on August 3rd, 2012 at 1:57 pm said:

It’s pretty, but it would be nice to see a gallery of things it’s printed instead a gallery of the printer looking all clean and pretty.

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