I made this little clamp to mount a aluminium cooling bar to my TMC2208 stepstick drivers. Warning: These are V2.0 BIQU BIGTREETECH TMC2208 drivers, where the chip is mounted on the top and the bottom side is a flat PCB!
The board in the first picture is a SKR v1.1
Print with PETG or ABS, they can get pretty toasty ;)
Be warned though, this design is brand-new so I haven't properly stress tested it yet.
Should this radiator not be enough, I will try even bigger heatsinks (i.e. this thing sideways)
0.2mm Layer, 0.4mm Nozzle
Aim for very good layer adhesion, e.g. with PETG go for higher temps, slower layer times and no cooling.
Filament: [ICE FILAMENTS PET Filament, Gracious Green, ICEFIL1PET198]