How Do Engineers Shape

How Do Engineers Shape To Make Circles Look Closely The Still Spinning But Somehow The Final Part Is It Has Four Flat Sides Forming A Square Head Seems Impossible Because When A La the Machine Cuts Apart The Workpiece Usually Keeps Rotating Around Its Center And When A Spinning It The Result Naturally Becomes Circular So How Can Which Is Not Rotationally Symmetrical Appear Engineers Solved The Problem By Separating The Jobs The Cylindrical Section A Lathe The Square Section A Milling Machine The Part Was Removed Repositioned And Each Flat One By One One By One It Sounds Reasonable But The Problem Appeared During That Because The Square Head Is Usually Appearance It Is Designed are Hole Wrench To Transfer Torque The Square Section Must Stay Perfectly Aligned With The Round Shaft Even A Tiny Mistake During Repositioning Could Make The Square Look Correct Was Slightly Off Center A Way To From The Same Center The Key Idea Tool Can Rotate The Workpiece Does Not Have To The Part Stays Milling Cutter Removes One Flat Surface At A Time The Moment The Workpiece Stops The Rotating Milling Cutter Cuts Through Creating The First Flat Surface Then Mill The Second Surface And In Sequence Each Sudden Stop Of High Speed Is The Ultimate Test Of This Movement