DIY Machine Makes 3D Carvings Of Magnetic Fields

you may go the simple branding iron filing on a white piece of paper route if you require to see the invisible field surrounding amagnet . But I prefer thisDIY contraptionwhich carves 3D froth sculptures of them rather .

https://gizmodo.com/what-the-hell-magnets-why-are-you-so-amazing-5850643

Using a unproblematic electric motor with a practice bit attached that works like a CNC car , the fairly rudimentary George Washington Carver is guided by an analog magnetic sensor detecting the inviolable orbit around a rarefied Earth magnet . As the equipage moves back and forth making its cuts , a simple microcontroller insure that whenever a magnetic sphere is detect , the practice session spot is pulled back . So over time you ’re left with a 3D sculpture that roughly represents the fields beleaguer themagnet . And up next , a prominent variant that use a halitosis detector so you could see the exchangeable 3D field of force around your point that all your ally are avoiding . [ MakeviaBoingBoing ]