Magnet Polarity Tester for 10mm x 5mm Round Magnets

thingiverse

I'm working on a project that relies heavily on 10mm x 5mm rare earth magnets to hold various components together. Since the magnets aren't marked with their polarity, I needed a straightforward method to determine whether they're attracting or repelling each other. To achieve this goal, I opted for these specific magnets: https://www.amazon.com/gp/product/B01M0OKUIJ/ref=oh_aui_search_detailpage?ie=UTF8&psc=1