Design intended Print Settings:
These are the magnets I used.
https://www.amazon.com/gp/product/B0BGY323XZ/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1
Your millage will very given the total exterior perimeter of the tiles you print.
Note: make sure you are using a brass nozzle or the magnets will stick to the nozzle as it passes over.
The author hasn't provided the model origin yet.