Lorentz force FBI tool

thingiverse

Remember that simple left-hand rule for figuring out the Lorentz force when current flows through a magnetic field? You might be wrestling with it in high school physics class right now! That's when your Physics exams can make you twist and strain to solve those hard Lorentz force questions. When I worked one-on-one with students, I noticed this was causing a huge headache and source of frustration for many. So that's when I developed the FBI tool. Slide it onto a pencil, point the tip towards the current direction, turn the magnetic field arrow B towards its actual direction in space and then voila! The force F will be pointing in the exact direction needed to answer those tough questions on the Lorentz force in your exams. You'll find all instructions right below. All you have to do is simply print it out. PLA is a good material, works fine with 0.15 mm layer height. Don't add any support or brim, it might make the letters stick together and cause them to fail. Just apply some scaling as needed to make it fit on another pencil or pen if necessary. To start printing simply grab that SCAD file, play around with it where you need to and then make it your own!