Gridfinity, magnet polarity
Gridfinity is an open-source grid storage system for your workshop, desktop ... The Gridfinity designs were first released in the video Gridfinity: Your Ultimate Modular Workshop is FREE! as a framework for the community to extend.
This page discusses the polarity of magnets in Gridfinity elements.
Magnet polarity
Zack Freedman has created a 1x1 base plate as a reference. He suggests that anyone wishing to create compatible elements should send him their magnets by post, with a self-addressed stamped envelope. This isn't exactly ideal, especially for those outside the US. After reading several threads on the subject and realizing that everyone did things a little differently, I opted for the solution that seemed most natural to me and which is mentioned in the very question of the Reddit thread:
I finally installed my first magnets this morning. I went with north pole up. Very Eurocentric of me, I know.
The north pole of the magnets therefore faces upwards:
Determining the North Pole
Then it's time to find out where the north and south poles are on the magnets. You can find more or less effective techniques online. After some research, I finally found a simple and effective solution: I use the Pole Detector app on my phone:
