But many a hobbyist doesn’t have a mill. And if the polygon needs to be accurately centered, remounting the stock costs accuracy. [Mehamozg] demonstrates you can turn a polygon on a lathe.

Which to buy first, a lathe or a mill? It’s a tough question for the aspiring home machinist with limited funds to spend on machine tools, but of course the correct answer is a lathe.

CNC turning is a subtractive manufacturing method (Removal of Material). Contrary to CNC Milling Lathe machining is for circular geometries (stock is commonly a solid/hollow cylinder) but a hexagon or ...