Magnetic Field Visualizer/Viewing Card

thingiverse

This is a simple and quick print to make a business-card sized tool which lets you visualize magnetic fields. This, while useful as a toy, is very handy for diagnosing issues. I use it often for determining which of my magnets are diametrically magnetized, which allows them to work with magnetic encoders. Steps: 1. Simply print 2x the .STL . Optionally, color the text with a black marker for clarity 2. Cut your 'Magnetic Viewing Film' (I used this on Amazon https://www.amazon.com/gp/product/B000UV6ZPS/) to size 3. Use your favorite glue (of the super variety, for me) to attach the sheet of film to both prints 4. Enjoy the 'ruggedized' magnetic viewing film tool, which conveniently fits anywhere a thick buisness card would.