11 Sep '13, 7pm

New post: 3D Printering: Key Patents

New post: 3D Printering: Key Patents

Carl Deckard got his initial patents for SLS while at UT-Austin, and I worked with him some when I was getting my degree there. The SLS machines can be done DIY, after all, that’s what his first machine was. But it is very challenging- Carl mentioned that the laser can’t just trace the shape that you want in the powder, because as the powder melts, it will wick and puddle and create different shapes than intended. Carl had to develop the algorithms to determine where you wanted the lasers pointed to generate a particular shape. Also, the method of rolling a extremely thin, uniform layer of powder was a much bigger challenge than Carl had anticipated, and I’m sure a DIYer will go through many trial and errors before they get this right. Other cons for the machine is that the powder is/was expensive, especially the metal. The plastic is probably not that much more than the o...

Full article: http://hackaday.com/2013/09/11/3d-printering-key-patents/

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