You&#x27;re probably thinking of <a href="https:&#x2F;&#x2F;en.m.wikipedia.org&#x2F;wiki&#x2F;Selective_laser_sintering" rel="nofollow">https:&#x2F;&#x2F;en.m.wikipedia.org&#x2F;wiki&#x2F;Selective_laser_sintering</a> which is pretty widespread -- for example you can order metal parts straight off ShapeWays that are SLS!