The advancements on the 1860s opened the floodgates and ushered in modern-day milling practice. 1870s to World War I[edit] Pantograph machines are available in two-dimensional and 3-dimensional designs. The two-dimensional pantograph is used for engraving letters or other layouts. While three-dimensional types are employed for copying any shape and contour https://demosthenesa604rcn9.wikirecognition.com/user