40mm miniatures base w/ magnet hole

thingiverse

I crafted a 40mm x 3mm circle base with an area beneath it for a magnet, ensuring the magnet would always be precisely centered. I discovered that adding a small recess to the base made it much easier to position the magnet accurately. A hole is drilled into the base, slightly smaller than 1/8 inch in diameter, requiring further drilling to achieve a perfect fit with the magnet.