Ball point pens were made since the 19th century the balls were (and I&#x27;m pretty much sure that still are) made by dropping liquid metal into a coolant with high viscosity so they&#x27;ll turn into spheres and then tumbled with an abrasive material usually fine sand or glass to make them smooth.<p>You do not need sophisticated equipment and especially not some high end CNC machining to make balls from metal what is this nonsense?<p>EDIT:
Found a video from BIC basically tungsten carbide droplets abrasively tumbled into perfect spheres (this is basic physics as they always want to tumble around their center of mass they end up being pretty close to being perfect spheres) <a href="https:&#x2F;&#x2F;youtu.be&#x2F;D0OyjRgUBns?t=43" rel="nofollow">https:&#x2F;&#x2F;youtu.be&#x2F;D0OyjRgUBns?t=43</a>