Old radiator replacement knob
thingiverse
Fixing that radiator knob wasn't too hard, but I ended up making a new one altogether :) I'd advise using robust materials and going for 100% infill on your next project.
Download Model from thingiverse
With this file you will be able to print Old radiator replacement knob with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Old radiator replacement knob.