Print two laying down on their side to avoid overhangs.. add set screw and nut to secure fitment according to needs.. clamp them on the bottom of the radiator and be free to relocate if needed.
Used a set screw and apropriate nut to make the clamping effect on these holders.
I printed them in cf-nylon to have more heat resistance and stability, but other materials should be fine (maybe NOT pla)
Tip:
Use the measuring tool in your slicer to check the opening gap and scale the model according to your needs.
The author marked this model as their own original creation.