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Plastic Extruders, mostly - > http://objects.reprap.org/wiki/Extruder
Re: Wax-Powder Sintering for Lost Wax Casting - 14 years ago
Hi Clint I came across this thread over the summer while I was designing and building just such a printer as a research project in college. I used an IR laser running at about 1.5 Watts to sinter a mixture of Candelilla wax and carbon powder into solid objects. I hadn't thought of the thermal warping issues until I was well into the process of developing a workable print powder and began seeinby AndreasBastian - Plastic Extruder Working Group