MTG Life Counter
thingiverse
I Built a Life Counter for Magic: The Gathering. I used two pairs of 1/4" x 1/8" neodymium magnets to construct it. Running an X-acto around the inside of the magnet holes before pressing the magnets in should be sufficient, and I shouldn't have to glue them into place, though. It's crucial that the magnets are aligned correctly in the middle section to prevent repulsion, and make sure you clean out the supports in the bottom magnet hole on the middle section really well, as I didn't and my magnet didn't press in straight.
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