I created this STL to help fit my Asus Ryujin ii 360mm radiator in the top of my Lian Li O11D Mini case. By default, this case is not made to support that large of a radiator on top.
Lian Li sells a bracket kit to do this very thing but they appear to always be out of stock with the supply chain delays/etc. I modeled this simple part to fill the need in the mean time.
This doesn't require any non standard mounting screws, and will protect your radiator from long screws damaging it. I used case fan screws on the thick side of this part, and the included radiator mounting screws to go from the bracket to the radiator.
I printed these at 60% infill using Atomic PETG. I wouldn't recommend PLA, but if it's all you have, it's worth a shot. My tolerances were a little bit off, so I ended up needing to drill out the case fan side with a 3/16th (3mm) bit to accommodate the screw easily. I chose case fan screws because they're plentiful, grip the bracket well, and are included with the O11D Mini.
The author hasn't provided the model origin yet.