This is a remix of the infinity cube by mjdargen with holes for 5x2mm magnets.
48 magnets are required, they can be bought cheaply on eBay and similar sites.
Some holes might be slightly too small. A hot 5mm thick drill bit can be used to make the holes slightly wider.
It is recommended that you glue the magnets in, though they do somewhat hold without glue.

Refer to the original page here for more info.