The lost wax technique originally goes back to ancient times and is believed to have probably originated in China or Egypt. The method was employed to create figurines and objects in gold. Then in 1907, a centrifugal casting machine was invented by William H. Taggart. Although he patented his idea using the lost wax technique, he lost the patent when it was discovered another dentist had written a paper on the same idea some 25 years earlier. Continue reading →