Popular *Axe kits often include a simple fan-cooled radiator mounted on the BM1366 chip, which certainly is more than sufficient for the average miner, but definitely intolerable for the extreme tweaker who wants to play with crazy clock speeds and weird core voltages.

This bracket, in which a commonly available 40x40mm copper water blocks perfectly fits, has both the dimensions and the holes to be an easy drop-in replacement for the original radiator/fan assembly.

Please make sure NOT to print this in PLA or other thermally unstable materials, as the copper block can get very hot if the liquid cooling is inefficient and/or damaged, hence melting and/or burning the bracket. I personally only use PETG-CF to print these pieces, and that works really well both thermally and mechanically.